Attachment 39168 Details for Bug 127570 – Tentative fix + tests

[patch] Tentative fix + tests

org.eclipse.jdt.core_head_05.txt (text/plain), 378.17 KB, created by Maxime Daniel

on 2006-04-21 10:34:09 EDT

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Creator: Maxime Daniel

Created: 2006-04-21 10:34:09 EDT

Size: 378.17 KB

patch

obsolete

>### Eclipse Workspace Patch 1.0
>#P org.eclipse.jdt.core
>Index: compiler/org/eclipse/jdt/internal/compiler/flow/UnconditionalFlowInfo.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/flow/UnconditionalFlowInfo.java,v
>retrieving revision 1.55
>diff -u -r1.55 UnconditionalFlowInfo.java
>--- compiler/org/eclipse/jdt/internal/compiler/flow/UnconditionalFlowInfo.java	19 Apr 2006 12:26:59 -0000	1.55
>+++ compiler/org/eclipse/jdt/internal/compiler/flow/UnconditionalFlowInfo.java	21 Apr 2006 14:13:20 -0000
>@@ -42,27 +42,36 @@
> 	// never release with the coverageTestFlag set to true
> 	public static int coverageTestId;
> 
>+	// assignment bits - first segment
> 	public long definiteInits;
> 	public long potentialInits;
> 	
>-	public long nullAssignmentStatusBit1;
>-	public long nullAssignmentStatusBit2;
>-	// 0 0 is potential (bit 1 is leftmost here)
>-	// 1 0 is assigned
>-	// 0 1 is protected null (aka if (o == null) { // here o protected null...)
>-	// 1 1 is protected non null
>-	public long nullAssignmentValueBit1;
>-	public long nullAssignmentValueBit2;
>-	// information only relevant for potential and assigned
>-	// 0 0 is start -- nothing known at all
>-	// 0 1 is assigned non null or potential anything but null
>-	// 1 0 is assigned null or potential null
>-	// 1 1 is potential null and potential anything but null or definite unknown
>-	// consider reintroducing the difference between potential non null and potential
>-	// unknown; if this is done, rename to nullAssignmentBit[1-4] since the semantics
>-	// would be ever less clear
>-	// went public in order to grant access to tests; do not like it...
>-
>+	// null bits - first segment
>+	public long 
>+		nullBit1,
>+		nullBit2,
>+		nullBit3,
>+		nullBit4;
>+/*
>+		nullBit1
>+		 nullBit2...
>+		0000	start
>+		0001	pot. unknown
>+		0010	pot. non null
>+		0011	pot. nn & pot. un
>+		0100	pot. null
>+		0101	pot. n & pot. un
>+		0110	pot. n & pot. nn
>+		1001	def. unknown
>+		1010	def. non null
>+		1011	pot. nn & prot. nn
>+		1100	def. null
>+		1101	pot. n & prot. n
>+		1110	prot. null
>+		1111	prot. non null
>+ */	
>+		
>+	// extra segments
> 	public static final int extraLength = 6;
> 	public long extra[][];
> 		// extra bit fields for larger numbers of fields/variables
>@@ -71,7 +80,7 @@
> 		// arrays which have the same size
> 
> 	public int maxFieldCount; // limit between fields and locals
>-	
>+
> 	// Constants
> 	public static final int BitCacheSize = 64; // 64 bits in a long.
> 
>@@ -87,50 +96,54 @@
> 	// union of potentially set ones
> 	this.potentialInits |= otherInits.potentialInits;
> 	// combine null information
>-	// note: we may have both forms of protection (null and non null) 
>-	// coming with otherInits, because of loops
>-	boolean considerNulls = (otherInits.tagBits & NULL_FLAG_MASK) != 0;
>-	long a1, na1, a2, na2, a3, a4, na4, b1, b2, nb2, b3, nb3, b4, nb4;
>-	if (considerNulls) {
>-		if ((this.tagBits & NULL_FLAG_MASK) == 0) {
>-			this.nullAssignmentStatusBit1 = otherInits.nullAssignmentStatusBit1;
>-			this.nullAssignmentStatusBit2 = otherInits.nullAssignmentStatusBit2;
>-			this.nullAssignmentValueBit1 = otherInits.nullAssignmentValueBit1;
>-			this.nullAssignmentValueBit2 = otherInits.nullAssignmentValueBit2;
>+	boolean thisHadNulls = (this.tagBits & NULL_FLAG_MASK) != 0,
>+		otherHasNulls = (otherInits.tagBits & NULL_FLAG_MASK) != 0;
>+	long 
>+		a1, a2, a3, a4, 
>+		na1, na2, na3, na4, 
>+		b1, b2, b3, b4,
>+		nb1, nb2, nb3, nb4;
>+	if (otherHasNulls) {
>+		if (!thisHadNulls) {
>+			this.nullBit1 = otherInits.nullBit1;
>+			this.nullBit2 = otherInits.nullBit2;
>+			this.nullBit3 = otherInits.nullBit3;
>+			this.nullBit4 = otherInits.nullBit4;
> 			if (coverageTestFlag && coverageTestId == 1) {
>-				this.nullAssignmentValueBit2 = ~0;
>+			 this.nullBit4 = ~0;
> 			}
> 		}
> 		else {
>-			this.nullAssignmentStatusBit1 =
>-				(b1 = otherInits.nullAssignmentStatusBit1) 
>-					| ((a1 = this.nullAssignmentStatusBit1) 
>-						& (((nb2 = ~(b2 = otherInits.nullAssignmentStatusBit2)) 
>-								& (nb3 = ~(b3 = otherInits.nullAssignmentValueBit1)) 
>-								& ((nb4 = ~(b4 = otherInits.nullAssignmentValueBit2)) 
>-									| ((a2 = this.nullAssignmentStatusBit2) 
>-										^ (a4 = this.nullAssignmentValueBit2)))) 
>-							| nb4 &	(na2 = ~a2)	& (na4 = ~a4)));
>-			this.nullAssignmentStatusBit2 =
>-				(b1 & b2) 
>-					| (~b1 
>-						& ((((na1 = ~a1) | a4) & b2) 
>-							| (a2 
>-								& (b2 
>-									| (a1 & (na4 = ~a4) & nb2 & nb3) 
>-									| ((~(a3 = this.nullAssignmentValueBit1) & nb3) 
>-											| (na1 & na4)) 
>-										& nb4))));
>-			this.nullAssignmentValueBit1 = 
>-				nb2 & b3 |
>-				~b1 & ((a1 & na2 & na4 | na1 & a3) & (nb2 | nb4) |
>-						a1 & na2 & a3 & nb2 |
>-						(a1 | a2 | na4) & b3);
>-			this.nullAssignmentValueBit2 =
>-				b4 |
>-				a4 & (nb2 & nb3 | ~(b1 ^ b2));
>+			this.nullBit1 = (b1 = otherInits.nullBit1)
>+ 				| (a1 = this.nullBit1) & ((a3 = this.nullBit3) 
>+ 					& (a4 = this.nullBit4) & (nb2 = ~(b2 = otherInits.nullBit2)) 
>+ 					& (nb4 = ~(b4 = otherInits.nullBit4))
>+ 		| ((na4 = ~a4) | (na3 = ~a3)) 
>+ 			& ((na2 = ~(a2 = this.nullBit2)) & nb2 
>+ 				| a2 & (nb3 = ~(b3 = otherInits.nullBit3)) & nb4));
>+			this.nullBit2 = b2 & (nb4 | nb3)
>+ 			| na3 & na4 & b2
>+ 			| a2 & (nb3 & nb4
>+ 			| (nb1 = ~b1) & (na3 | (na1 = ~a1))
>+ 			| a1 & b2);
>+			this.nullBit3 = b3 & (nb1 & (b2 | a2 | na1)
>+ 			| b1 & (b4 | nb2 | a1 & a3)
>+ 			| na1 & na2 & na4)
>+ 			| a3 & nb2 & nb4
>+ 			| nb1 & ((na2 & a4 | na1) & a3
>+ 			| a1 & na2 & na4 & b2);
>+			this.nullBit4 = nb1 & (a4 & (na3 & nb3	| (a3 | na2) & nb2)
>+ 			| a1 & (a3 & nb2 & b4
>+ 			| a2 & b2 & (b4	| a3 & na4 & nb3)))
>+ 			| b1 & (a3 & a4 & b4
>+ 			| na2 & na4 & nb3 & b4
>+ 			| a2 & ((b3 | a4) & b4
>+ 				| na3 & a4 & b2 & b3)
>+ 			| na1 & (b4	| (a4 | a2) & b2 & b3))
>+ 			| (na1 & (na3 & nb3 | na2 & nb2)
>+ 				| a1 & (nb2 & nb3 | a2 & a3)) & b4;	
> 			if (coverageTestFlag && coverageTestId == 2) {
>-				this.nullAssignmentValueBit2 = ~0;
>+			 this.nullBit4 = ~0;
> 			}
> 		}
> 		this.tagBits |= NULL_FLAG_MASK; // in all cases - avoid forgetting extras
>@@ -144,9 +157,6 @@
> 				int length, otherLength;
> 				if ((length = this.extra[0].length) < 
> 						(otherLength = otherInits.extra[0].length)) {
>-					if (coverageTestFlag && coverageTestId == 3) {
>-						throw new AssertionFailedException("COVERAGE 3"); //$NON-NLS-1$
>-					}
> 					// current storage is shorter -> grow current
> 					for (int j = 0; j < extraLength; j++) {
> 						System.arraycopy(this.extra[j], 0, 
>@@ -154,16 +164,18 @@
> 					}
> 					mergeLimit = length;
> 					copyLimit = otherLength;
>+					if (coverageTestFlag && coverageTestId == 3) {
>+						throw new AssertionFailedException("COVERAGE 3"); //$NON-NLS-1$
>+					}
> 				} else {
>+					// current storage is longer
>+					mergeLimit = otherLength;
> 					if (coverageTestFlag && coverageTestId == 4) {
> 						throw new AssertionFailedException("COVERAGE 4"); //$NON-NLS-1$
> 					}
>-					// current storage is longer
>-					mergeLimit = otherLength;
> 				}
> 			} 
>-		} 
>-		else if (otherInits.extra != null) {
>+		} else if (otherInits.extra != null) {
> 			// no storage here, but other has extra storage.
> 			// shortcut regular copy because array copy is better
> 			int otherLength;
>@@ -173,7 +185,7 @@
> 					otherInits.extra[0].length]), 0, otherLength);			
> 			System.arraycopy(otherInits.extra[1], 0, 
> 				(this.extra[1] = new long[otherLength]), 0, otherLength);
>-			if (considerNulls) {
>+			if (otherHasNulls) {
> 				for (int j = 2; j < extraLength; j++) {
> 					System.arraycopy(otherInits.extra[j], 0, 
> 						(this.extra[j] = new long[otherLength]), 0, otherLength);
>@@ -187,66 +199,70 @@
> 					this.extra[j] = new long[otherLength];			
> 				}
> 				if (coverageTestFlag && coverageTestId == 6) {
>-					this.extra[5][otherLength - 1] = ~0;
>+					throw new AssertionFailedException("COVERAGE 6"); //$NON-NLS-1$
> 				}
> 			}
> 		}
>-		int i = 0;
>-		for (; i < mergeLimit; i++) {
>+		int i;
>+		// manage definite assignment info
>+		for (i = 0; i < mergeLimit; i++) {
> 			this.extra[0][i] |= otherInits.extra[0][i];
> 			this.extra[1][i] |= otherInits.extra[1][i];
>-			if (considerNulls) { // could consider pushing the test outside the loop
>-				if (this.extra[2][i] == 0 &&
>-						this.extra[3][i] == 0 &&
>-						this.extra[4][i] == 0 &&
>-						this.extra[5][i] == 0) {
>-					for (int j = 2; j < extraLength; j++) {
>-						this.extra[j][i] = otherInits.extra[j][i];
>-					}
>-					if (coverageTestFlag && coverageTestId == 7) {
>-						this.extra[5][i] = ~0;
>-					}
>-				}
>-				else {
>-					this.extra[2][i] =
>-						(b1 = otherInits.extra[2][i]) |
>-						(a1	 = this.extra[2][i]) & 
>-							((nb2 = ~(b2 = otherInits.extra[3][i])) &
>-								(nb3 = ~(b3 = otherInits.extra[4][i])) &
>-								((nb4 = ~(b4 = otherInits.extra[5][i])) |
>-									((a2 = this.extra[3][i]) ^ 
>-										(a4 = this.extra[5][i]))) | 
>-							nb4 & (na2 = ~a2) & (na4 = ~a4));
>-					this.extra[3][i] =
>-						b1 & b2 |
>-						~b1 & (((na1 = ~a1) | a4) & b2 |
>-								a2 & (b2 |
>-									a1 & (na4 = ~a4) & nb2 & nb3 |
>-									(~(a3 = this.extra[4][i]) & nb3 | na1 & na4) & nb4));
>-					this.extra[4][i] = 
>-						nb2 & b3 |
>-						~b1 & ((a1 & na2 & na4 | na1 & a3) & (nb2 | nb4) |
>-								a1 & na2 & a3 & nb2 |
>-								(a1 | a2 | na4) & b3);
>-					this.extra[5][i] =
>-						b4 |
>-						a4 & (nb2 & nb3 | ~(b1 ^ b2));
>-						if (coverageTestFlag && coverageTestId == 8) {
>-							this.extra[5][i] = ~0;
>-						}
>-				}
>-			}
> 		}
> 		for (; i < copyLimit; i++) {
> 			this.extra[0][i] = otherInits.extra[0][i];
> 			this.extra[1][i] = otherInits.extra[1][i];
>-			if (considerNulls) {
>-				for (int j = 2; j < extraLength; j++) {
>-					this.extra[j][i] = otherInits.extra[j][i];
>-				}
>-				if (coverageTestFlag && coverageTestId == 9) {
>-					this.extra[5][i] = ~0;
>-				}
>+		}
>+		// tweak limits for nulls
>+		if (!thisHadNulls) {
>+		 if (copyLimit < mergeLimit) {
>+		 	copyLimit = mergeLimit;
>+		 }
>+		 	mergeLimit = 0;
>+		}
>+		if (!otherHasNulls) {
>+		 	copyLimit = 0;
>+		 	mergeLimit = 0;
>+		}
>+		for (i = 0; i < mergeLimit; i++) {
>+			this.extra[1 + 1][i] = (b1 = otherInits.extra[1 + 1][i])
>+ 				| (a1 = this.extra[1 + 1][i]) & ((a3 = this.extra[3 + 1][i]) 
>+ 					& (a4 = this.extra[4 + 1][i]) & (nb2 = ~(b2 = otherInits.extra[2 + 1][i])) 
>+ 					& (nb4 = ~(b4 = otherInits.extra[4 + 1][i]))
>+ 		| ((na4 = ~a4) | (na3 = ~a3)) 
>+ 			& ((na2 = ~(a2 = this.extra[2 + 1][i])) & nb2 
>+ 				| a2 & (nb3 = ~(b3 = otherInits.extra[3 + 1][i])) & nb4));
>+			this.extra[2 + 1][i] = b2 & (nb4 | nb3)
>+ 			| na3 & na4 & b2
>+ 			| a2 & (nb3 & nb4
>+ 			| (nb1 = ~b1) & (na3 | (na1 = ~a1))
>+ 			| a1 & b2);
>+			this.extra[3 + 1][i] = b3 & (nb1 & (b2 | a2 | na1)
>+ 			| b1 & (b4 | nb2 | a1 & a3)
>+ 			| na1 & na2 & na4)
>+ 			| a3 & nb2 & nb4
>+ 			| nb1 & ((na2 & a4 | na1) & a3
>+ 			| a1 & na2 & na4 & b2);
>+			this.extra[4 + 1][i] = nb1 & (a4 & (na3 & nb3	| (a3 | na2) & nb2)
>+ 			| a1 & (a3 & nb2 & b4
>+ 			| a2 & b2 & (b4	| a3 & na4 & nb3)))
>+ 			| b1 & (a3 & a4 & b4
>+ 			| na2 & na4 & nb3 & b4
>+ 			| a2 & ((b3 | a4) & b4
>+ 				| na3 & a4 & b2 & b3)
>+ 			| na1 & (b4	| (a4 | a2) & b2 & b3))
>+ 			| (na1 & (na3 & nb3 | na2 & nb2)
>+ 				| a1 & (nb2 & nb3 | a2 & a3)) & b4;	
>+			if (coverageTestFlag && coverageTestId == 7) {
>+			 this.extra[5][i] = ~0;
>+			}
>+		}
>+		for (; i < copyLimit; i++) {
>+			for (int j = 2; j < extraLength; j++) {
>+				this.extra[j][i] = otherInits.extra[j][i];
>+			}
>+			if (coverageTestFlag && coverageTestId == 8) {
>+			 this.extra[5][i] = ~0;
> 			}
> 		}
> 	}
>@@ -322,206 +338,126 @@
> 		return this;
> 	}
> 	// if we get here, otherInits has some null info
>-	boolean thisHasNulls = (this.tagBits & NULL_FLAG_MASK) != 0;
>-	if (thisHasNulls) {
>-		long a1, a2, na2, a3, na3, a4, na4, b1, nb1, b2, nb2, b3, nb3, b4, nb4;
>-		this.nullAssignmentStatusBit1 =
>-			((a1 = this.nullAssignmentStatusBit1) &
>-					(na4 = ~(a4 = this.nullAssignmentValueBit2)) &	
>-					((na3 = ~(a3 = this.nullAssignmentValueBit1)) | 
>-							(a2 = this.nullAssignmentStatusBit2)) | 
>-							a2 & na3 &	a4) & 
>-					(nb3 = ~(b3 = otherInits.nullAssignmentValueBit1)) &
>-					((b2 = otherInits.nullAssignmentStatusBit2) | 
>-					(nb4 = ~(b4 = otherInits.nullAssignmentValueBit2))) |
>-			a1 & (na2 = ~a2) & 
>-				(a4 & ((nb1 = ~(b1 = otherInits.nullAssignmentStatusBit1)) & 
>-						nb3 | b1 &
>-						(b4 | b2)) |
>-				na4 & (nb1 & (((nb2 = ~b2) & nb4 | b2) & nb3 | b3 & nb4) | 
>-						b1 & nb4 & (nb2 | nb3)));
>-		this.nullAssignmentStatusBit2 =
>-			a2 & (~a1 & na4 & nb4 |
>-					a1 & na3 & nb3 & (nb1 & (nb2 & nb4 | b2) |
>-										b1 & (nb4 |b2 & b4)));
>-		this.nullAssignmentValueBit1 =
>-			a3 |
>-			b1 & nb2 & nb4 |
>-			nb1 & b3 |
>-			a1 & na2 & (b1 & b3 | nb1 & b4);
>-//			b1 & (~b2 & ~b4 | a1 & ~a2 & b3) |
>-//			~b1 & (b3 | a1 & ~a2 & b4); -- same op nb
>-		this.nullAssignmentValueBit2 =
>-			a4 & (na2 | a2 & na3) |
>-			b4 & (nb2 | b2 & nb3);
>-		if (coverageTestFlag && coverageTestId == 15) {
>-			this.nullAssignmentValueBit2 = ~0;
>-		}
>-		// extra storage management
>-		if (otherInits.extra != null) {
>-			int mergeLimit = 0, copyLimit = 0;
>-			int otherLength = otherInits.extra[0].length;
>-			if (this.extra == null) {
>-				this.extra = new long[extraLength][];
>-				for (int j = 0; j < extraLength; j++) {
>-					this.extra[j] = new long[otherLength];
>-				}
>-				copyLimit = otherLength;
>-				if (coverageTestFlag && coverageTestId == 16) {
>-					this.extra[2][0] = ~0; thisHasNulls = true;
>-				}
>-			}
>-			else {
>-				mergeLimit = otherLength;
>-				if (mergeLimit > this.extra[0].length) {
>-					copyLimit = mergeLimit;
>-					mergeLimit = this.extra[0].length;
>-					for (int j = 0; j < extraLength; j++) {
>-						System.arraycopy(this.extra[j], 0,
>-								this.extra[j] = new long[otherLength], 0,
>-								mergeLimit);
>-					}
>-				}
>-				int i;
>-				for (i = 0; i < mergeLimit; i++) {
>-					this.extra[2][i] =
>-						((a1 = this.extra[2][i]) &
>-								(na4 = ~(a4 = this.extra[5][i])) &	
>-								((na3 = ~(a3 = this.extra[4][i])) | 
>-										(a2 = this.extra[3][i])) | 
>-										a2 & na3 &	a4) & 
>-								(nb3 = ~(b3 = otherInits.extra[4][i])) &
>-								((b2 = otherInits.extra[3][i]) | 
>-								(nb4 = ~(b4 = otherInits.extra[5][i]))) |
>-						a1 & (na2 = ~a2) & 
>-							(a4 & ((nb1 = ~(b1 = otherInits.extra[2][i])) & 
>-									nb3 | b1 &
>-									(b4 | b2)) |
>-							na4 & (nb1 & (((nb2 = ~b2) & nb4 | b2) & nb3 | b3 & nb4) | 
>-									b1 & nb4 & (nb2 | nb3)));
>-					this.extra[3][i] =
>-						a2 & (~a1 & na4 & nb4 |
>-								a1 & na3 & nb3 & (nb1 & (nb2 & nb4 | b2) |
>-													b1 & (nb4 |b2 & b4)));
>-					this.extra[4][i] =
>-						a3 |
>-						b1 & nb2 & nb4 |
>-						nb1 & b3 |
>-						a1 & na2 & (b1 & b3 | nb1 & b4);
>-					this.extra[5][i] =
>-						a4 & (na2 | a2 & na3) |
>-						b4 & (nb2 | b2 & nb3);
>-					if (coverageTestFlag && coverageTestId == 17) {
>-						this.nullAssignmentValueBit2 = ~0;
>-					}
>-				}
>-				for (; i < copyLimit; i++) {
>-					if (otherInits.extra[4][i] != 0 ||
>-						otherInits.extra[5][i] != 0) {
>-						this.tagBits |= NULL_FLAG_MASK; 
>-						this.extra[4][i] = 
>-							otherInits.extra[4][i] &
>-							~(otherInits.extra[2][i] &
>-							 ~otherInits.extra[3][i] &
>-							 otherInits.extra[5][i]);
>-						this.extra[5][i] = 
>-							otherInits.extra[5][i];
>-						if (coverageTestFlag && coverageTestId == 18) {
>-							this.extra[5][i] = ~0;
>-						}
>-					}
>-				}
>+	boolean thisHadNulls = (this.tagBits & NULL_FLAG_MASK) != 0,
>+		thisHasNulls = false;
>+	long a1, a2, a3, a4, 
>+		na1, na2, na3, na4, 
>+		b1, b2, b3, b4,
>+		nb1, nb2, nb3, nb4;
>+	if (thisHadNulls) {
>+		this.nullBit1 = (a1 = this.nullBit1) 
>+								& ((a3 = this.nullBit3) & (a4 = this.nullBit4) 
>+									& ((nb2 = ~(b2 = otherInits.nullBit2)) 
>+										& (nb4 = ~(b4 = otherInits.nullBit4)) 
>+											| (b1 = otherInits.nullBit1) & (b3 = otherInits.nullBit3))
>+ 			| (na2 = ~(a2 = this.nullBit2)) 
>+ 				& (b1 & b3 | ((na4 = ~a4) | (na3 = ~a3)) & nb2)
>+ 			| a2 & ((na4 | na3) & ((nb3 = ~b3) & nb4 | b1 & b2)));
>+		this.nullBit2 = b2 & (nb3 | (nb1 = ~b1))
>+ 			| a2 & (nb3 & nb4 | b2 | na3 | (na1 = ~a1));
>+		this.nullBit3 = b3 & (nb1 & b2
>+ 		| a2 & (nb2	| a3)
>+ 		| na1 & nb2
>+ 		| a1 & na2 & na4 & b1)
>+ 			| a3 & (nb2 & nb4 | na2 & a4 | na1)
>+ 			| a1 & na2 & na4 & b2;
>+		this.nullBit4 = na3 & (nb1 & nb3 & b4
>+ 				| a4 & (nb3 | b1 & b2))
>+ 			| nb2 & (na3 & b1 & nb3	| na2 & (nb1 & b4 | b1 & nb3 | a4))
>+ 			| a3 & (a4 & (nb2 | b1 & b3)
>+ 			| a1 & a2 & (nb1 & b4 | na4 & (b2 | b1) & nb3));
>+		if (coverageTestFlag && coverageTestId == 9) {
>+		 this.nullBit4 = ~0;
>+		}
>+		if ((this.nullBit2 | this.nullBit3 | this.nullBit4) != 0) { // bit1 is redundant
>+		 	thisHasNulls = true;
>+		}
>+	} else {
>+ 		this.nullBit1 = 0;
>+ 		this.nullBit2 = (b2 = otherInits.nullBit2) 
>+ 							& ((nb3 = ~(b3 = otherInits.nullBit3)) | 
>+ 								(nb1 = ~(b1 = otherInits.nullBit1)));
>+ 		this.nullBit3 = b3 & (nb1 | (nb2 = ~b2));
>+ 		this.nullBit4 = ~b1 & ~b3 & (b4 = otherInits.nullBit4) | ~b2 & (b1 & ~b3 | ~b1 & b4);
>+		if (coverageTestFlag && coverageTestId == 10) {
>+		 this.nullBit4 = ~0;
>+		}
>+		if ((this.nullBit2 | this.nullBit3 | this.nullBit4) != 0) { // bit1 is redundant
>+		 	thisHasNulls = true;
>+		}
>+	}
>+	// extra storage management
>+	if (otherInits.extra != null) {
>+		int mergeLimit = 0, copyLimit = otherInits.extra[0].length;
>+		if (this.extra == null) {
>+			this.extra = new long[extraLength][];
>+			for (int j = 0; j < extraLength; j++) {
>+				this.extra[j] = new long[copyLimit];
> 			}
>-		}
>-	}
>-	else {
>-		if (otherInits.nullAssignmentValueBit1 != 0 ||
>-			otherInits.nullAssignmentValueBit2 != 0) {
>-			// add potential values
>-			this.nullAssignmentValueBit1 = 
>-				otherInits.nullAssignmentValueBit1 & 
>-					~(otherInits.nullAssignmentStatusBit1 &
>-					 ~otherInits.nullAssignmentStatusBit2 &
>-					 otherInits.nullAssignmentValueBit2); // exclude assigned unknown
>-			this.nullAssignmentValueBit2 = 
>-				otherInits.nullAssignmentValueBit2;
>-			thisHasNulls = 
>-				this.nullAssignmentValueBit1 != 0 ||
>-				this.nullAssignmentValueBit2 != 0;
>-			if (coverageTestFlag && coverageTestId == 10) {
>-				this.nullAssignmentValueBit2 = ~0;
>+			if (coverageTestFlag && coverageTestId == 11) {
>+				throw new AssertionFailedException("COVERAGE 11"); //$NON-NLS-1$
> 			}
>-		}
>-		// extra storage management
>-		if (otherInits.extra != null) {
>-			int mergeLimit = 0, copyLimit = 0;
>-			int otherLength = otherInits.extra[0].length;
>-			if (this.extra == null) {
>-				copyLimit = otherLength; 
>-					// cannot happen when called from addPotentialInitializationsFrom
>-				this.extra = new long[extraLength][];
>+		} else {
>+			mergeLimit = copyLimit;
>+			if (mergeLimit > this.extra[0].length) {
>+				mergeLimit = this.extra[0].length;
> 				for (int j = 0; j < extraLength; j++) {
>-					this.extra[j] = new long[otherLength];
>-				}
>-				if (coverageTestFlag && coverageTestId == 11) {
>-					this.extra[5][0] = ~0; this.tagBits |= NULL_FLAG_MASK;
>-				}
>-			}
>-			else {
>-				mergeLimit = otherLength;
>-				if (mergeLimit > this.extra[0].length) {
>-					copyLimit = mergeLimit;
>-					mergeLimit = this.extra[0].length;
>-					System.arraycopy(this.extra[0], 0,
>-							this.extra[0] = new long[otherLength], 0,
>+					System.arraycopy(this.extra[j], 0,
>+							this.extra[j] = new long[copyLimit], 0,
> 							mergeLimit);
>-					System.arraycopy(this.extra[1], 0,
>-							this.extra[1] = new long[otherLength], 0,
>-							mergeLimit);
>-					for (int j = 2; j < extraLength; j++) {
>-						this.extra[j] = new long[otherLength];
>-					}
>-					if (coverageTestFlag && coverageTestId == 12) {
>+				}
>+				if (! thisHadNulls) {
>+ 				mergeLimit = 0; 
>+ 				// will do with a copy -- caveat: only valid because definite assignment bits copied above
>+ 			if (coverageTestFlag && coverageTestId == 12) {
> 						throw new AssertionFailedException("COVERAGE 12"); //$NON-NLS-1$
>-					}
>+ 			}
> 				}
> 			}
>-			int i;
>-			for (i = 0; i < mergeLimit; i++) {
>-				if (otherInits.extra[4][i] != 0 ||
>-					otherInits.extra[5][i] != 0) {
>-					this.extra[4][i] |= 
>-						otherInits.extra[4][i] &
>-						~(otherInits.extra[2][i] &
>-						 ~otherInits.extra[3][i] &
>-						 otherInits.extra[5][i]);
>-					this.extra[5][i] |= 
>-						otherInits.extra[5][i];
>-					thisHasNulls = thisHasNulls ||
>-						this.extra[4][i] != 0 ||
>-						this.extra[5][i] != 0;
>-					if (coverageTestFlag && coverageTestId == 13) {
>-						this.extra[5][i] = ~0;
>-					}
>-				}
>+		}
>+		// PREMATURE skip operations for fields
>+		int i;
>+		for (i = 0 ; i < mergeLimit ; i++) {
>+ 		this.extra[1 + 1][i] = (a1 = this.extra[1 + 1][i]) 
>+ 								& ((a3 = this.extra[3 + 1][i]) & (a4 = this.extra[4 + 1][i]) 
>+ 									& ((nb2 = ~(b2 = otherInits.extra[2 + 1][i])) 
>+ 										& (nb4 = ~(b4 = otherInits.extra[4 + 1][i])) 
>+ 											| (b1 = otherInits.extra[1 + 1][i]) & (b3 = otherInits.extra[3 + 1][i]))
>+ 			| (na2 = ~(a2 = this.extra[2 + 1][i])) 
>+ 				& (b1 & b3 | ((na4 = ~a4) | (na3 = ~a3)) & nb2)
>+ 			| a2 & ((na4 | na3) & ((nb3 = ~b3) & nb4 | b1 & b2)));
>+ 		this.extra[2 + 1][i] = b2 & (nb3 | (nb1 = ~b1))
>+ 			| a2 & (nb3 & nb4 | b2 | na3 | (na1 = ~a1));
>+ 		this.extra[3 + 1][i] = b3 & (nb1 & b2
>+ 		| a2 & (nb2	| a3)
>+ 		| na1 & nb2
>+ 		| a1 & na2 & na4 & b1)
>+ 			| a3 & (nb2 & nb4 | na2 & a4 | na1)
>+ 			| a1 & na2 & na4 & b2;
>+ 		this.extra[4 + 1][i] = na3 & (nb1 & nb3 & b4
>+ 				| a4 & (nb3 | b1 & b2))
>+ 			| nb2 & (na3 & b1 & nb3	| na2 & (nb1 & b4 | b1 & nb3 | a4))
>+ 			| a3 & (a4 & (nb2 | b1 & b3)
>+ 			| a1 & a2 & (nb1 & b4 | na4 & (b2 | b1) & nb3));
>+ 		if ((this.extra[2 + 1][i] | this.extra[3 + 1][i] | this.extra[4 + 1][i]) != 0) { // bit1 is redundant
>+ 		 	thisHasNulls = true;
>+ 		}
>+			if (coverageTestFlag && coverageTestId == 13) {
>+			 this.nullBit4 = ~0;
> 			}
>-			for (; i < copyLimit; i++) {
>-				if (otherInits.extra[4][i] != 0 ||
>-					otherInits.extra[5][i] != 0) {
>-					this.extra[4][i] = 
>-						otherInits.extra[4][i] &
>-						~(otherInits.extra[2][i] &
>-						 ~otherInits.extra[3][i] &
>-						 otherInits.extra[5][i]);
>-					this.extra[5][i] = 
>-						otherInits.extra[5][i];
>-					thisHasNulls = thisHasNulls ||
>-						this.extra[4][i] != 0 ||
>-						this.extra[5][i] != 0;
>-					if (coverageTestFlag && coverageTestId == 14) {
>-						this.extra[5][i] = ~0;
>-					}
>-				}
>+		}
>+		for (; i < copyLimit; i++) {
>+ 		this.extra[1 + 1][i] = 0;
>+ 		this.extra[2 + 1][i] = (b2 = otherInits.extra[2 + 1][i]) 
>+ 							& ((nb3 = ~(b3 = otherInits.extra[3 + 1][i])) | 
>+ 								(nb1 = ~(b1 = otherInits.extra[1 + 1][i])));
>+ 		this.extra[3 + 1][i] = b3 & (nb1 | (nb2 = ~b2));
>+ 		this.extra[4 + 1][i] = ~b1 & ~b3 & (b4 = otherInits.extra[4 + 1][i]) | ~b2 & (b1 & ~b3 | ~b1 & b4);
>+ 		if ((this.extra[2 + 1][i] | this.extra[3 + 1][i] | this.extra[4 + 1][i]) != 0) { // bit1 is redundant
>+ 		 	thisHasNulls = true;
>+ 		}
>+			if (coverageTestFlag && coverageTestId == 14) {
>+			 this.extra[5][i] = ~0;
> 			}
> 		}
> 	}
>@@ -545,10 +481,10 @@
> 	copy.potentialInits = this.potentialInits;
> 	boolean hasNullInfo = (this.tagBits & NULL_FLAG_MASK) != 0;
> 	if (hasNullInfo) { 
>-		copy.nullAssignmentStatusBit1 = this.nullAssignmentStatusBit1;
>-		copy.nullAssignmentStatusBit2 = this.nullAssignmentStatusBit2;
>-		copy.nullAssignmentValueBit1 = this.nullAssignmentValueBit1;
>-		copy.nullAssignmentValueBit2 = this.nullAssignmentValueBit2;
>+		copy.nullBit1 = this.nullBit1;
>+		copy.nullBit2 = this.nullBit2;
>+		copy.nullBit3 = this.nullBit3;
>+		copy.nullBit4 = this.nullBit4;
> 	}
> 	copy.tagBits = this.tagBits;
> 	copy.maxFieldCount = this.maxFieldCount;
>@@ -604,10 +540,10 @@
> 		long mask = (1L << limit)-1;
> 		this.definiteInits &= mask;
> 		this.potentialInits &= mask;
>-		this.nullAssignmentStatusBit1 &= mask;
>-		this.nullAssignmentStatusBit2 &= mask;
>-		this.nullAssignmentValueBit1 &= mask;
>-		this.nullAssignmentValueBit2 &= mask;
>+		this.nullBit1 &= mask;
>+		this.nullBit2 &= mask;
>+		this.nullBit3 &= mask;
>+		this.nullBit4 &= mask;
> 	} 
> 	// use extra vector
> 	if (this.extra == null) {
>@@ -694,15 +630,9 @@
> 		return true;
> 	}
> 	int position = local.id + this.maxFieldCount;
>-	long mask;
> 	if (position < BitCacheSize) { // use bits
>-		return 
>-			(this.nullAssignmentStatusBit2 & 
>-				(mask = 1L << position)) != 0 ?
>-			(this.nullAssignmentStatusBit1 & mask) != 0 :
>-			(this.nullAssignmentStatusBit1 & 
>-				this.nullAssignmentValueBit2 & mask) != 0 &&
>-			(this.nullAssignmentValueBit1 & mask) == 0; 
>+		return ((this.nullBit1 & this.nullBit3 & (~this.nullBit2 | this.nullBit4))
>+			 & (1L << position)) != 0;
> 	}
> 	// use extra vector
> 	if (this.extra == null) {
>@@ -713,13 +643,9 @@
> 			>= this.extra[0].length) {
> 		return false; // if not enough room in vector, then not initialized
> 	}
>-	return 
>-		(this.extra[3][vectorIndex] & 
>-			(mask = 1L << (position % BitCacheSize))) != 0 ?
>-		(this.extra[2][vectorIndex] & mask) != 0 :
>-		(this.extra[2][vectorIndex] & 
>-			this.extra[5][vectorIndex] & mask) != 0 &&
>-		(this.extra[4][vectorIndex] & mask) == 0;
>+	return ((this.extra[2][vectorIndex] & this.extra[4][vectorIndex]
>+		 & (~this.extra[3][vectorIndex] | this.extra[5][vectorIndex]))
>+		 & (1L << (position % BitCacheSize))) != 0;
> }
> 
> final public boolean isDefinitelyNull(LocalVariableBinding local) {
>@@ -730,14 +656,10 @@
> 		return false;
> 	}
> 	int position = local.id + this.maxFieldCount;
>-	long mask;
> 	if (position < BitCacheSize) { // use bits
>-		return 
>-			(this.nullAssignmentStatusBit2 & (mask = 1L << position)) != 0 ?
>-			(this.nullAssignmentStatusBit1 & mask) == 0 :
>-			(this.nullAssignmentStatusBit1 & 
>-				this.nullAssignmentValueBit1 & mask) != 0 &&
>-			(this.nullAssignmentValueBit2 & mask) == 0; 
>+		return ((this.nullBit1 & this.nullBit2
>+			 & (~this.nullBit3 | ~this.nullBit4))
>+			 & (1L << position)) != 0;
> 	}
> 	// use extra vector
> 	if (this.extra == null) {
>@@ -748,13 +670,9 @@
> 			this.extra[0].length) {
> 		return false; // if not enough room in vector, then not initialized
> 	}
>-	return
>-		(this.extra[3][vectorIndex] & 
>-			(mask = 1L << (position % BitCacheSize))) != 0 ?
>-		(this.extra[2][vectorIndex] & mask) == 0 :
>-		(this.extra[2][vectorIndex] & 
>-			this.extra[4][vectorIndex] & mask) != 0 &&
>-		(this.extra[5][vectorIndex] & mask) == 0;
>+	return ((this.extra[2][vectorIndex] & this.extra[3][vectorIndex]
>+		 & (~this.extra[4][vectorIndex] | ~this.extra[5][vectorIndex]))
>+		 & (1L << (position % BitCacheSize))) != 0;
> }
> 
> final public boolean isDefinitelyUnknown(LocalVariableBinding local) {
>@@ -764,14 +682,9 @@
> 		return false;
> 	}
> 	int position = local.id + this.maxFieldCount;
>-	long mask;
> 	if (position < BitCacheSize) { // use bits
>-		return 
>-			(this.nullAssignmentStatusBit2 & (mask = 1L << position)) != 0 ?
>-			false :
>-			(this.nullAssignmentStatusBit1 & 
>-				this.nullAssignmentValueBit1 & 
>-				this.nullAssignmentValueBit2 & mask) != 0; 
>+		return ((this.nullBit1 & this.nullBit4
>+				& ~this.nullBit2 & ~this.nullBit3) & (1L << position)) != 0;
> 	}
> 	// use extra vector
> 	if (this.extra == null) {
>@@ -782,14 +695,9 @@
> 			this.extra[0].length) {
> 		return false; // if not enough room in vector, then not initialized
> 	}
>-	return
>-		(this.extra[3][vectorIndex] & 
>-			(mask = 1L << (position % BitCacheSize))) != 0 ?
>-		false :
>-		(this.extra[2][vectorIndex] & 
>-			this.extra[4][vectorIndex] &
>-			this.extra[5][vectorIndex] &
>-			mask) != 0;
>+	return ((this.extra[2][vectorIndex] & this.extra[5][vectorIndex]
>+	 & ~this.extra[3][vectorIndex] & ~this.extra[4][vectorIndex])
>+		 & (1L << (position % BitCacheSize))) != 0;
> }
> 
> /**
>@@ -826,22 +734,41 @@
> 	return isPotentiallyAssigned(local.id + this.maxFieldCount);
> }
> 
>+final public boolean isPotentiallyNonNull(LocalVariableBinding local) {
>+	if ((this.tagBits & NULL_FLAG_MASK) == 0 || 
>+			(local.type.tagBits & TagBits.IsBaseType) != 0) {
>+		return false;
>+	}
>+	int position;
>+	if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
>+		// use bits
>+		return ((this.nullBit3 & (~this.nullBit1 | ~this.nullBit2))
>+			 & (1L << position)) != 0;
>+	}
>+	// use extra vector
>+	if (this.extra == null) {
>+		return false; // if vector not yet allocated, then not initialized
>+	}
>+	int vectorIndex;
>+	if ((vectorIndex = (position / BitCacheSize) - 1) >= 
>+			this.extra[0].length) {
>+		return false; // if not enough room in vector, then not initialized
>+	}
>+	return ((this.extra[4][vectorIndex]
>+		 & (~this.extra[2][vectorIndex] | ~this.extra[3][vectorIndex]))
>+		 & (1L << (position % BitCacheSize))) != 0;
>+}
>+
> final public boolean isPotentiallyNull(LocalVariableBinding local) {
> 	if ((this.tagBits & NULL_FLAG_MASK) == 0 || 
> 			(local.type.tagBits & TagBits.IsBaseType) != 0) {
> 		return false;
> 	}
> 	int position;
>-	long mask;
> 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
> 		// use bits
>-		return
>-			(this.nullAssignmentStatusBit2 & (mask = 1L << position)) != 0 ?
>-			(this.nullAssignmentStatusBit1 & mask) == 0 : // protected null
>-			(this.nullAssignmentValueBit1 & mask) != 0 && // null bit set and
>-				((this.nullAssignmentStatusBit1 & mask) == 0 || // (potential or
>-				 (this.nullAssignmentValueBit2 & mask) == 0); 
>-											// assigned, but not unknown)
>+		return ((this.nullBit2 & (~this.nullBit1 | ~this.nullBit3))
>+			 & (1L << position)) != 0;
> 	}
> 	// use extra vector
> 	if (this.extra == null) {
>@@ -852,13 +779,9 @@
> 			this.extra[0].length) {
> 		return false; // if not enough room in vector, then not initialized
> 	}
>-	return 
>-		(this.extra[3][vectorIndex] & 
>-			(mask = 1L << (position % BitCacheSize))) != 0 ?
>-		(this.extra[2][vectorIndex] & mask) == 0 :
>-		(this.extra[4][vectorIndex] & mask) != 0 && 
>-			((this.extra[2][vectorIndex] & mask) == 0 || 
>-			 (this.extra[5][vectorIndex] & mask) == 0); 
>+	return ((this.extra[3][vectorIndex]
>+		 & (~this.extra[2][vectorIndex] | ~this.extra[4][vectorIndex]))
>+		 & (1L << (position % BitCacheSize))) != 0;
> }
> 
> final public boolean isPotentiallyUnknown(LocalVariableBinding local) {
>@@ -868,16 +791,10 @@
> 		return false;
> 	}
> 	int position = local.id + this.maxFieldCount;
>-	long mask;
> 	if (position < BitCacheSize) { // use bits
>-		return 
>-			(this.nullAssignmentStatusBit2 & (mask = 1L << position)) != 0 ?
>-			false :
>-			((this.nullAssignmentStatusBit1 & 
>-				this.nullAssignmentValueBit1 |
>-			 ~this.nullAssignmentStatusBit1 &
>-				~this.nullAssignmentValueBit1) & 
>-				this.nullAssignmentValueBit2 & mask) != 0; 
>+		return (this.nullBit4 
>+			& (~this.nullBit1 | ~this.nullBit2 & ~this.nullBit3)
>+			& (1L << position)) != 0;
> 	}
> 	// use extra vector
> 	if (this.extra == null) {
>@@ -888,16 +805,10 @@
> 			this.extra[0].length) {
> 		return false; // if not enough room in vector, then not initialized
> 	}
>-	return
>-		(this.extra[3][vectorIndex] & 
>-			(mask = 1L << (position % BitCacheSize))) != 0 ?
>-		false :
>-		((this.extra[2][vectorIndex] & 
>-			this.extra[4][vectorIndex] |
>-		 ~this.extra[2][vectorIndex] &
>-			~this.extra[4][vectorIndex]) &
>-			this.extra[5][vectorIndex] &
>-			mask) != 0;
>+	return (this.extra[5][vectorIndex]
>+	 & (~this.extra[2][vectorIndex] 
>+	 | ~this.extra[3][vectorIndex] & ~this.extra[4][vectorIndex]) 
>+		 & (1L << (position % BitCacheSize))) != 0;
> }
> 
> final public boolean isProtectedNonNull(LocalVariableBinding local) {
>@@ -908,8 +819,7 @@
> 	int position;
> 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
> 		// use bits
>-		return (this.nullAssignmentStatusBit1 &
>-				this.nullAssignmentStatusBit2 & (1L << position)) != 0;
>+		return (this.nullBit1 & this.nullBit3 & this.nullBit4 & (1L << position)) != 0;
> 	}
> 	// use extra vector
> 	if (this.extra == null) {
>@@ -920,9 +830,10 @@
> 		this.extra[0].length) {
> 		return false; // if not enough room in vector, then not initialized
> 	}
>-	return (this.extra[2][vectorIndex] & 
>-			this.extra[3][vectorIndex] & 
>-			(1L << (position % BitCacheSize))) != 0;
>+	return (this.extra[2][vectorIndex] 
>+	 & this.extra[4][vectorIndex]
>+	 & this.extra[5][vectorIndex]
>+		 & (1L << (position % BitCacheSize))) != 0;
> }
> 
> final public boolean isProtectedNull(LocalVariableBinding local) {
>@@ -933,8 +844,9 @@
> 	int position;
> 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
> 		// use bits
>-		return (~this.nullAssignmentStatusBit1 &
>-				this.nullAssignmentStatusBit2 & (1L << position)) != 0;
>+		return (this.nullBit1 & this.nullBit2
>+			& (this.nullBit3 ^ this.nullBit4)
>+			& (1L << position)) != 0;
> 	}
> 	// use extra vector
> 	if (this.extra == null) {
>@@ -945,9 +857,9 @@
> 			this.extra[0].length) {
> 		return false; // if not enough room in vector, then not initialized
> 	}
>-	return (~this.extra[2][vectorIndex] & 
>-			this.extra[3][vectorIndex] &
>-			(1L << (position % BitCacheSize))) != 0;
>+	return (this.extra[2][vectorIndex] & this.extra[3][vectorIndex]
>+	 & (this.extra[4][vectorIndex] ^ this.extra[5][vectorIndex])
>+		 & (1L << (position % BitCacheSize))) != 0;
> }
> 
> public void markAsComparedEqualToNonNull(LocalVariableBinding local) {
>@@ -956,25 +868,32 @@
> 		this.tagBits |= NULL_FLAG_MASK;
> 		int position;
> 		long mask;
>+		long a1, a2, a3, a4, na2;
> 		// position is zero-based
> 		if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
> 			// use bits
>-			if (((mask = 1L << position) & // leave assigned non null unchanged 
>-					this.nullAssignmentStatusBit1 &
>-					~this.nullAssignmentStatusBit2 &
>-					~this.nullAssignmentValueBit1 &
>-					this.nullAssignmentValueBit2) == 0) {
>-				// set protected non null
>-				this.nullAssignmentStatusBit1 |= mask;
>-				this.nullAssignmentStatusBit2 |= mask;
>-				 // clear potential null
>-				this.nullAssignmentValueBit1 &= ~mask;
>-				if (coverageTestFlag && coverageTestId == 19) {
>-					this.nullAssignmentValueBit2 = ~0;
>-				}
>-			}
>-			if (coverageTestFlag && coverageTestId == 20) {
>-				this.nullAssignmentValueBit2 = ~0;
>+			if (((mask = 1L << position) 
>+				& (a1 = this.nullBit1)
>+				& (na2 = ~(a2 = this.nullBit2))
>+				& ~(a3 = this.nullBit3)
>+				& (a4 = this.nullBit4))
>+					!= 0) {
>+			 	this.nullBit4 &= ~mask;
>+			} else if ((mask & a1 & na2 & a3) == 0) {
>+			 	this.nullBit4 |= mask;
>+			 	if ((mask & a1) == 0) {
>+			 	 	if ((mask & a2 & (a3 ^ a4)) != 0) {
>+			 	 	 	this.nullBit2 &= ~mask;
>+			 	 	}
>+			 	 	else if ((mask & (a2 | a3 | a4)) == 0) {
>+			 	 	 	this.nullBit2 |= mask;
>+			 	 	}
>+			 	}
>+			}
>+			this.nullBit1 |= mask;
>+			this.nullBit3 |= mask; 
>+			if (coverageTestFlag && coverageTestId == 15) {
>+			 	this.nullBit4 = ~0;
> 			}
> 		} 
> 		else {
>@@ -986,8 +905,8 @@
> 				for (int j = 0; j < extraLength; j++) {
> 					this.extra[j] = new long[length];
> 				}
>-				if (coverageTestFlag && coverageTestId == 21) {
>-					throw new AssertionFailedException("COVERAGE 21"); //$NON-NLS-1$
>+				if (coverageTestFlag && coverageTestId == 16) {
>+					throw new AssertionFailedException("COVERAGE 16"); //$NON-NLS-1$
> 				}
> 			}
> 			else {
>@@ -999,22 +918,34 @@
> 							(this.extra[j] = new long[newLength]), 0, 
> 							oldLength);
> 					}
>-					if (coverageTestFlag && coverageTestId == 22) {
>-						throw new AssertionFailedException("COVERAGE 22"); //$NON-NLS-1$
>+					if (coverageTestFlag && coverageTestId == 17) {
>+						throw new AssertionFailedException("COVERAGE 17"); //$NON-NLS-1$
> 					}
> 				}
> 			}
>-			if (((mask = 1L << (position % BitCacheSize)) & 
>-					this.extra[2][vectorIndex] &
>-					~this.extra[3][vectorIndex] &
>-					~this.extra[4][vectorIndex] &
>-					this.extra[5][vectorIndex]) == 0) {
>-				this.extra[2][vectorIndex] |= mask;
>-				this.extra[3][vectorIndex] |= mask;
>-				this.extra[4][vectorIndex] &= ~mask;
>-				if (coverageTestFlag && coverageTestId == 23) {
>-					this.extra[5][vectorIndex] = ~0;
>-				}
>+			// MACRO :'b,'es/nullBit$.$/extra[\1 + 1][vectorIndex]/gc
>+			if (((mask = 1L << (position % BitCacheSize)) 
>+ 				& (a1 = this.extra[1 + 1][vectorIndex])
>+ 				& (na2 = ~(a2 = this.extra[2 + 1][vectorIndex]))
>+ 				& ~(a3 = this.extra[3 + 1][vectorIndex])
>+ 				& (a4 = this.extra[4 + 1][vectorIndex]))
>+ 					!= 0) {
>+ 			 	this.extra[4 + 1][vectorIndex] &= ~mask;
>+ 			} else if ((mask & a1 & na2 & a3) == 0) {
>+ 			 	this.extra[4 + 1][vectorIndex] |= mask;
>+ 			 	if ((mask & a1) == 0) {
>+ 			 	 	if ((mask & a2 & (a3 ^ a4)) != 0) {
>+ 			 	 	 	this.extra[2 + 1][vectorIndex] &= ~mask;
>+ 			 	 	}
>+ 			 	 	else if ((mask & (a2 | a3 | a4)) == 0) {
>+ 			 	 	 	this.extra[2 + 1][vectorIndex] |= mask;
>+ 			 	 	}
>+ 			 	}
>+ 			}
>+ 			this.extra[1 + 1][vectorIndex] |= mask;
>+ 			this.extra[3 + 1][vectorIndex] |= mask; 
>+			if (coverageTestFlag && coverageTestId == 18) {
>+			 	this.extra[5][vectorIndex] = ~0;
> 			}
> 		}
> 	}
>@@ -1025,33 +956,30 @@
> 	if (this != DEAD_END) {
> 		this.tagBits |= NULL_FLAG_MASK;
> 		int position;
>-		long mask, unknownAssigned;
>+		long mask;
> 		// position is zero-based
> 		if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
> 			// use bits
>-			mask = 1L << position;
>-			if ((mask & // leave assigned null unchanged
>-					this.nullAssignmentStatusBit1 &
>-					~this.nullAssignmentStatusBit2 &
>-					this.nullAssignmentValueBit1 &
>-					~this.nullAssignmentValueBit2) == 0) {
>-				unknownAssigned = this.nullAssignmentStatusBit1 &
>-					~this.nullAssignmentStatusBit2 &
>-					this.nullAssignmentValueBit1 &
>-					this.nullAssignmentValueBit2;
>-				// set protected
>-				this.nullAssignmentStatusBit2 |= mask;
>-				this.nullAssignmentStatusBit1 &= (mask = ~mask);
>-				// protected is null
>-				this.nullAssignmentValueBit1 &= mask | ~unknownAssigned;
>-				this.nullAssignmentValueBit2 &= mask;
>-				// clear potential anything but null
>-				if (coverageTestFlag && coverageTestId == 24) {
>-					this.nullAssignmentValueBit2 = ~0;
>-				}
>-			}
>-			if (coverageTestFlag && coverageTestId == 25) {
>-				this.nullAssignmentValueBit2 = ~0;
>+			if (((mask = 1L << position) & this.nullBit1) != 0) {
>+ 			 	if ((mask 
>+ 			 		& (~this.nullBit2 | this.nullBit3
>+ 			 			| ~this.nullBit4)) != 0) {
>+ 			 	 	this.nullBit4 &= ~mask;
>+ 			 	}
>+			} else if ((mask & this.nullBit4) != 0) {
>+			 	 this.nullBit3 &= ~mask;
>+			} else {
>+ 			if ((mask & this.nullBit2) != 0) {
>+ 			 	this.nullBit3 &= ~mask;
>+ 			 	this.nullBit4 |= mask;
>+ 			} else {
>+ 			 	this.nullBit3 |= mask;
>+ 			}
>+			}
>+			this.nullBit1 |= mask;
>+			this.nullBit2 |= mask; 
>+			if (coverageTestFlag && coverageTestId == 19) {
>+			 	this.nullBit4 = ~0;
> 			}
> 		} 
> 		else {
>@@ -1064,8 +992,8 @@
> 				for (int j = 0; j < extraLength; j++) {
> 					this.extra[j] = new long[length ];
> 				}
>-				if (coverageTestFlag && coverageTestId == 26) {
>-					throw new AssertionFailedException("COVERAGE 26"); //$NON-NLS-1$
>+				if (coverageTestFlag && coverageTestId == 20) {
>+					throw new AssertionFailedException("COVERAGE 20"); //$NON-NLS-1$
> 				}
> 			}
> 			else {
>@@ -1077,28 +1005,29 @@
> 							(this.extra[j] = new long[newLength]), 0,
> 							oldLength);
> 					}
>-					if (coverageTestFlag && coverageTestId == 27) {
>-						throw new AssertionFailedException("COVERAGE 27"); //$NON-NLS-1$
>+					if (coverageTestFlag && coverageTestId == 21) {
>+						throw new AssertionFailedException("COVERAGE 21"); //$NON-NLS-1$
> 					}
> 				}
> 			}
>-			if ((mask &
>-					this.extra[2][vectorIndex] &
>-					~this.extra[3][vectorIndex] &
>-					this.extra[4][vectorIndex] &
>-					~this.extra[5][vectorIndex]) == 0) {
>-				unknownAssigned = this.extra[2][vectorIndex] &
>-					~this.extra[3][vectorIndex] &
>-					this.extra[4][vectorIndex] &
>-					this.extra[5][vectorIndex];
>-				this.extra[3][vectorIndex]	 |= mask;
>-				this.extra[2][vectorIndex] &= (mask = ~mask);
>-				this.extra[4][vectorIndex] &= mask | ~unknownAssigned;
>-				this.extra[5][vectorIndex]	&= mask;
>-				if (coverageTestFlag && coverageTestId == 28) {
>-					this.extra[5][vectorIndex] = ~0;
>-				}
>+			if ((mask & this.extra[1 + 1][vectorIndex]) != 0) {
>+ 			 	if ((mask 
>+ 			 		& (~this.extra[2 + 1][vectorIndex] | this.extra[3 + 1][vectorIndex]
>+ 			 			| ~this.extra[4 + 1][vectorIndex])) != 0) {
>+ 			 	 	this.extra[4 + 1][vectorIndex] &= ~mask;
>+ 			 	}
>+			} else if ((mask & this.extra[4 + 1][vectorIndex]) != 0) {
>+			 	 this.extra[3 + 1][vectorIndex] &= ~mask;
>+			} else {
>+ 			if ((mask & this.extra[2 + 1][vectorIndex]) != 0) {
>+ 			 	this.extra[3 + 1][vectorIndex] &= ~mask;
>+ 			 	this.extra[4 + 1][vectorIndex] |= mask;
>+ 			} else {
>+ 			 	this.extra[3 + 1][vectorIndex] |= mask;
>+ 			}
> 			}
>+			this.extra[1 + 1][vectorIndex] |= mask;
>+			this.extra[2 + 1][vectorIndex] |= mask; 
> 		}
> 	}
> }
>@@ -1157,62 +1086,66 @@
> public void markAsDefinitelyNonNull(LocalVariableBinding local) {
> 	// protected from non-object locals in calling methods
> 	if (this != DEAD_END) {
>-		this.tagBits |= NULL_FLAG_MASK;
>-		int position;
>-		long mask;
>-		// position is zero-based
>-		if ((position = local.id + this.maxFieldCount) < BitCacheSize) {		// use bits
>-			this.nullAssignmentStatusBit1 |= (mask = 1L << position);
>-			this.nullAssignmentValueBit2 |= mask; // set non null
>-			this.nullAssignmentStatusBit2 &= ~mask; // clear protection
>-			this.nullAssignmentValueBit1 &= ~mask; // clear null
>-			if (coverageTestFlag && coverageTestId == 29) {
>-				this.nullAssignmentStatusBit1 = 0;
>-			}
>-		} 
>-		else {
>-			// use extra vector
>-			int vectorIndex = (position / BitCacheSize) - 1;
>-			this.extra[2][vectorIndex] |= 
>-				(mask = 1L << (position % BitCacheSize));
>-			this.extra[5][vectorIndex] |= mask;
>-			this.extra[3][vectorIndex] &= ~mask;
>-			this.extra[4][vectorIndex] &= ~mask;
>-			if (coverageTestFlag && coverageTestId == 30) {
>-				this.extra[5][vectorIndex] = ~0;
>-			}
>-		}
>+ 	this.tagBits |= NULL_FLAG_MASK;
>+ 	long mask;
>+ 	int position;
>+ 	// position is zero-based
>+ 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) { // use bits
>+ 		// set assigned non null
>+ 		this.nullBit1 |= (mask = 1L << position);
>+ 		this.nullBit3 |= mask;
>+ 		// clear others
>+ 		this.nullBit2 &= (mask = ~mask);
>+ 		this.nullBit4 &= mask;
>+ 		if (coverageTestFlag && coverageTestId == 22) {
>+ 		 	this.nullBit1 = 0;
>+ 		}
>+ 	} 
>+ 	else {
>+ 		// use extra vector
>+ 		int vectorIndex ;
>+ 		this.extra[2][vectorIndex = (position / BitCacheSize) - 1] 
>+ 		 |= (mask = 1L << (position % BitCacheSize));
>+ 		this.extra[4][vectorIndex] |= mask;
>+ 		this.extra[3][vectorIndex] &= (mask = ~mask);
>+ 		this.extra[5][vectorIndex] &= mask;
>+ 		if (coverageTestFlag && coverageTestId == 23) {
>+ 			this.extra[2][vectorIndex] = 0;
>+ 		}
>+ 	}
> 	}
> }
> 
> public void markAsDefinitelyNull(LocalVariableBinding local) {
> 	// protected from non-object locals in calling methods
> 	if (this != DEAD_END) {
>-		this.tagBits |= NULL_FLAG_MASK;
>-		int position;
>-		long mask;
>-		// position is zero-based
>-		if ((position = local.id + this.maxFieldCount) < BitCacheSize) {		// use bits
>-			this.nullAssignmentStatusBit1 |= (mask = 1L << position); // set assignment
>-			this.nullAssignmentStatusBit2 &= ~mask; // clear protection
>-			this.nullAssignmentValueBit1 |= mask; // set null
>-			this.nullAssignmentValueBit2 &= ~mask; // clear non null
>-			if (coverageTestFlag && coverageTestId == 31) {
>-				this.nullAssignmentValueBit2 = ~0;
>-			}
>-		} 
>-		else {
>-			// use extra vector
>-			int vectorIndex = (position / BitCacheSize) - 1;
>-			this.extra[2][vectorIndex] |= 
>-				(mask = 1L << (position % BitCacheSize));
>-			this.extra[3][vectorIndex] &= ~mask;
>-			this.extra[4][vectorIndex] |= mask;
>-			this.extra[5][vectorIndex] &= ~mask;
>-			if (coverageTestFlag && coverageTestId == 32) {
>-				this.extra[5][vectorIndex] = ~0;
>-			}
>-		}
>+ 	this.tagBits |= NULL_FLAG_MASK;
>+ 	long mask;
>+ 	int position;
>+ 	// position is zero-based
>+ 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) { // use bits
>+ 		// mark assigned null
>+ 		this.nullBit1 |= (mask = 1L << position);
>+ 		this.nullBit2 |= mask;
>+ 		// clear others
>+ 		this.nullBit3 &= (mask = ~mask);
>+ 		this.nullBit4 &= mask;
>+ 		if (coverageTestFlag && coverageTestId == 24) {
>+ 		 	this.nullBit4 = ~0;
>+ 		}
>+ 	} 
>+ 	else {
>+ 		// use extra vector
>+ 		int vectorIndex ;
>+ 		this.extra[2][vectorIndex = (position / BitCacheSize) - 1] 
>+ 		 |= (mask = 1L << (position % BitCacheSize));
>+ 		this.extra[3][vectorIndex] |= mask;
>+ 		this.extra[4][vectorIndex] &= (mask = ~mask);
>+ 		this.extra[5][vectorIndex] &= mask;
>+ 		if (coverageTestFlag && coverageTestId == 25) {
>+ 			this.extra[5][vectorIndex] = ~0;
>+ 		}
>+ 	}
> 	}
> }
> 
>@@ -1231,27 +1164,26 @@
> 		// position is zero-based
> 		if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
> 			// use bits
>-			this.nullAssignmentValueBit1 |= (mask = 1L << position);
>-			this.nullAssignmentValueBit2 |= mask;
>-			// set unknown
>-			this.nullAssignmentStatusBit1 |= mask;
>-			// set assignment
>-			this.nullAssignmentStatusBit2 &= ~mask;
>-			// clear protection
>-			if (coverageTestFlag && coverageTestId == 33) {
>-				this.nullAssignmentValueBit2 = ~0;
>+			// mark assigned null
>+			this.nullBit1 |= (mask = 1L << position);
>+			this.nullBit4 |= mask;
>+			// clear others
>+			this.nullBit2 &= (mask = ~mask);
>+			this.nullBit3 &= mask;
>+			if (coverageTestFlag && coverageTestId == 26) {
>+			 	this.nullBit4 = 0;
> 			}
> 		} 
> 		else {
> 			// use extra vector
>-			int vectorIndex = (position / BitCacheSize) - 1;
>-			this.extra[4][vectorIndex] |=
>-				(mask = 1L << (position % BitCacheSize));
>+			int vectorIndex ;
>+			this.extra[2][vectorIndex = (position / BitCacheSize) - 1] 
>+			 |= (mask = 1L << (position % BitCacheSize));
> 			this.extra[5][vectorIndex] |= mask;
>-			this.extra[2][vectorIndex] |= mask;
>-			this.extra[3][vectorIndex] &= ~mask;
>-			if (coverageTestFlag && coverageTestId == 34) {
>-				this.extra[5][vectorIndex] = ~0;
>+			this.extra[3][vectorIndex] &= (mask = ~mask);
>+			this.extra[4][vectorIndex] &= mask;
>+			if (coverageTestFlag && coverageTestId == 27) {
>+				this.extra[5][vectorIndex] = 0;
> 			}
> 		}
> 	}
>@@ -1259,15 +1191,14 @@
> 
> public UnconditionalFlowInfo mergedWith(UnconditionalFlowInfo otherInits) {
> 	if ((otherInits.tagBits & UNREACHABLE) != 0 && this != DEAD_END) {
>-		if (coverageTestFlag && coverageTestId == 35) {
>-			throw new AssertionFailedException("COVERAGE 35"); //$NON-NLS-1$
>+		if (coverageTestFlag && coverageTestId == 28) {
>+			throw new AssertionFailedException("COVERAGE 28"); //$NON-NLS-1$
> 		}
>-		// DEAD_END + unreachable other -> other
> 		return this;
> 	}
> 	if ((this.tagBits & UNREACHABLE) != 0) {
>-		if (coverageTestFlag && coverageTestId == 36) {
>-			throw new AssertionFailedException("COVERAGE 36"); //$NON-NLS-1$
>+		if (coverageTestFlag && coverageTestId == 29) {
>+			throw new AssertionFailedException("COVERAGE 29"); //$NON-NLS-1$
> 		}
> 		return (UnconditionalFlowInfo) otherInits.copy(); // make sure otherInits won't be affected
> 	} 
>@@ -1278,69 +1209,75 @@
> 	this.potentialInits |= otherInits.potentialInits;
> 
> 	// null combinations
>-	boolean otherHasNulls = (otherInits.tagBits & NULL_FLAG_MASK) != 0,
>-		thisHasNulls = false;
>-	long a1, a2, na2, a3, na3, a4, na4, b1, nb1, b2, nb2, b3, nb3, b4, nb4;
>-	if (otherHasNulls) {
>-		this.nullAssignmentStatusBit1 =
>-			(a1 = this.nullAssignmentStatusBit1) & 
>-			(b1 = otherInits.nullAssignmentStatusBit1) & (
>-				(nb4 = ~(b4 = otherInits.nullAssignmentValueBit2)) & 
>-				((b2 = otherInits.nullAssignmentStatusBit2) & 
>-						(nb3 = ~(b3 = otherInits.nullAssignmentValueBit1)) & 
>-						(na3 = ~(a3 = this.nullAssignmentValueBit1)) & 
>-						((a2 = this.nullAssignmentStatusBit2) & 
>-							(na4 = ~(a4 = this.nullAssignmentValueBit2)) | a4) |
>-						(na2 = ~a2) & a3 & na4 & (nb2 = ~b2) & b3 ) |
>-				b4 & (na3 & nb3 & (na4 & a2 | a4) |
>-						na2 & a4 & nb2));
>-		this.nullAssignmentStatusBit2 =
>-			a2 & b2 & ~(a1 ^ b1) & (na3 & nb3 | na4 & nb4) |
>-			a1 & b1 & (a2 ^ b2) & na3 & nb3 |
>-			(a1 & na2 & (nb1 = ~b1) & b2 | ~a1 & a2 & b1 & nb2) & na4 & nb4;
>-		this.nullAssignmentValueBit1 =
>-			b1 & nb2 & nb4 |
>-			~a1 & (a3 |
>-					a2 & na3 & (b1 | nb2)) |
>-			(a1 | na2) & nb1 & b2 & nb3 |
>-			nb1 & b3 |
>-			a1 & na2 & (na4 |
>-						b1 & nb2 & (a3 | b3));
>-		this.nullAssignmentValueBit2 =
>-			a4 | b4;
>-		
>-		// WORK recode if tests succeed
>-		this.nullAssignmentValueBit1 &= 
>-			~(a1 & na2 & na3 & a4 & nb1 & b2 & nb3 & nb4
>-					| ~a1 & a2 & na3 & na4 & b1 & nb2 & nb3 & b4);
>-		
>-		if (coverageTestFlag && coverageTestId == 37) {
>-			this.nullAssignmentValueBit2 = ~0;
>-		}
>+	boolean
>+		thisHasNulls = (this.tagBits & NULL_FLAG_MASK) != 0,
>+		otherHasNulls = (otherInits.tagBits & NULL_FLAG_MASK) != 0,
>+		thisHadNulls = thisHasNulls;
>+	long 
>+		a1, a2, a3, a4, 
>+		na1, na2, na3, na4, 
>+		nb1, nb2, nb3, nb4,
>+		b1, b2, b3, b4;
>+	if (thisHadNulls) {
>+ 	if (otherHasNulls) {
>+ 		this.nullBit1 = (a2 = this.nullBit2) & (a3 = this.nullBit3) 
>+ 							& (a4 = this.nullBit4) & (b1 = otherInits.nullBit1) 
>+ 							& (nb2 = ~(b2 = otherInits.nullBit2))
>+ 			| (a1 = this.nullBit1) & (b1 & (a3 & a4 & (b3 = otherInits.nullBit3) 
>+ 													& (b4 = otherInits.nullBit4)
>+ 												| (na2 = ~a2) & nb2 
>+ 													& ((nb4 = ~b4) | (na4 = ~a4) 
>+ 															| (na3 = ~a3) & (nb3 = ~b3))
>+ 												| a2 & b2 & ((na4 | na3) & (nb4	| nb3)))
>+ 											| na2 & b2 & b3 & b4);
>+ 		this.nullBit2 = b2 & (nb3 | (nb1 = ~b1) | a3 & (a4 | (na1 = ~a1)) & nb4)
>+ 			| a2 & (b2 | na4 & b3 & (b4 | nb1) | na3 | na1);
>+ 		this.nullBit3 = b3 & (nb2 & b4 | nb1 | a3 & (na4 & nb4 | a4 & b4))
>+ 			| a3 & (na2 & a4 | na1)
>+ 			| (a2 | na1) & b1 & nb2 & nb4
>+ 			| a1 & na2 & na4 & (b2 | nb1);
>+ 		this.nullBit4 = na3 & (nb1 & nb3 & b4
>+ 			| b1 & (nb2 & nb3 | a4 & b2 & nb4)
>+ 			| na1 & a4 & (nb3 | b1 & b2))
>+ 			| a3 & a4 & (b3 & b4 | b1 & nb2)
>+ 			| na2 & (nb1 & b4 | b1 & nb3 | na1 & a4) & nb2
>+ 			| a1 & (na3 & (nb3 & b4
>+ 			| b1 & b2 & b3 & nb4
>+ 			| na2 & (nb3 | nb2))
>+ 			| na2 & b3 & b4
>+ 			| a2 & (nb1 & b4 | a3 & na4 & b1) & nb3);
>+ 		if (coverageTestFlag && coverageTestId == 30) {
>+ 		 	this.nullBit4 = ~0;
>+ 		}
>+ 	} else { // other has no null info 
>+ 		a1 = this.nullBit1;
>+ 		this.nullBit1 = 0;
>+ 		this.nullBit2 = (a2 = this.nullBit2) & (na3 = ~(a3 = this.nullBit3) | (na1 = ~a1));
>+ 		this.nullBit3 = a3 & ((na2 = ~a2) & (a4 = this.nullBit4) | na1) | a1 & na2 & ~a4;
>+ 		this.nullBit4 = (na3 | na2) & na1 & a4	| a1 & na3 & na2;
>+ 		if (coverageTestFlag && coverageTestId == 31) {
>+ 		 	this.nullBit4 = ~0;
>+ 		}
>+ 	}
>+	} else if (otherHasNulls) { // only other had nulls
>+ 		this.nullBit1 = 0;
>+ 		this.nullBit2 = (b2 = otherInits.nullBit2) & (nb3 = ~(b3 = otherInits.nullBit3) | (nb1 = ~(b1 = otherInits.nullBit1)));
>+ 		this.nullBit3 = b3 & ((nb2 = ~b2) & (b4 = otherInits.nullBit4) | nb1) | b1 & nb2 & ~b4;
>+ 		this.nullBit4 = (nb3 | nb2) & nb1 & b4	| b1 & nb3 & nb2;
>+ 		if (coverageTestFlag && coverageTestId == 32) {
>+ 		 	this.nullBit4 = ~0;
>+ 		}
>+ 	thisHasNulls =
>+ 		// redundant with the three following ones
>+ 		this.nullBit2 != 0 ||
>+ 		this.nullBit3 != 0 ||
>+ 		this.nullBit4 != 0;
> 	}
>-	else {
>-		// tune potentials
>-		this.nullAssignmentValueBit1 =
>-			~(~this.nullAssignmentStatusBit1 &
>-					~this.nullAssignmentStatusBit2 &
>-					~this.nullAssignmentValueBit1) &
>-			~(this.nullAssignmentStatusBit1 & 
>-					(this.nullAssignmentStatusBit2 | this.nullAssignmentValueBit2));
>-		// reset assignment and protected
>-		this.nullAssignmentStatusBit1 = 
>-		this.nullAssignmentStatusBit2 = 0;
>-		if (coverageTestFlag && coverageTestId == 38) {
>-			this.nullAssignmentValueBit2 = ~0;
>-		}
>-	}
>-	thisHasNulls = this.nullAssignmentStatusBit1 != 0 || 
>-		this.nullAssignmentStatusBit2 != 0 ||
>-		this.nullAssignmentValueBit1 != 0 ||
>-		this.nullAssignmentValueBit2 != 0;
> 
> 	// treating extra storage
> 	if (this.extra != null || otherInits.extra != null) {
> 		int mergeLimit = 0, copyLimit = 0, resetLimit = 0;
>+		int i;
> 		if (this.extra != null) {
> 			if (otherInits.extra != null) {
> 				// both sides have extra storage
>@@ -1354,23 +1291,23 @@
> 					}
> 					mergeLimit = length;
> 					copyLimit = otherLength;
>-					if (coverageTestFlag && coverageTestId == 39) {
>-						throw new AssertionFailedException("COVERAGE 39"); //$NON-NLS-1$
>+					if (coverageTestFlag && coverageTestId == 33) {
>+						throw new AssertionFailedException("COVERAGE 33"); //$NON-NLS-1$
> 					}
> 				} 
> 				else {
> 					// current storage is longer
> 					mergeLimit = otherLength;
> 					resetLimit = length;
>-					if (coverageTestFlag && coverageTestId == 40) {
>-						throw new AssertionFailedException("COVERAGE 40"); //$NON-NLS-1$
>+					if (coverageTestFlag && coverageTestId == 34) {
>+						throw new AssertionFailedException("COVERAGE 34"); //$NON-NLS-1$
> 					}
> 				}
> 			} 
> 			else {
> 				resetLimit = this.extra[0].length;
>-				if (coverageTestFlag && coverageTestId == 41) {
>-					throw new AssertionFailedException("COVERAGE 41"); //$NON-NLS-1$
>+				if (coverageTestFlag && coverageTestId == 35) {
>+					throw new AssertionFailedException("COVERAGE 35"); //$NON-NLS-1$
> 				}
> 			}
> 		} 
>@@ -1384,114 +1321,93 @@
> 			System.arraycopy(otherInits.extra[1], 0, 
> 				this.extra[1], 0, otherLength);
> 			copyLimit = otherLength;
>-			if (coverageTestFlag && coverageTestId == 42) {
>-				throw new AssertionFailedException("COVERAGE 42"); //$NON-NLS-1$
>+			if (coverageTestFlag && coverageTestId == 36) {
>+				throw new AssertionFailedException("COVERAGE 36"); //$NON-NLS-1$
> 			}
> 		}
>-		int i;
>-		if (otherHasNulls) {
>-			for (i = 0; i < mergeLimit; i++) {
>-				this.extra[0][i] &= 
>-					otherInits.extra[0][i];
>-				this.extra[1][i] |= 
>-					otherInits.extra[1][i];
>-				this.extra[2][i] =
>-					(a1 = this.extra[2][i]) & 
>-					(b1 = otherInits.extra[2][i]) & (
>-						(nb4 = ~(b4 = otherInits.extra[5][i])) & 
>-						((b2 = otherInits.extra[3][i]) & 
>-								(nb3 = ~(b3 = otherInits.extra[4][i])) & 
>-								(na3 = ~(a3 = this.extra[4][i])) & 
>-								((a2 = this.extra[3][i]) & 
>-									(na4 = ~(a4 = this.extra[5][i])) | a4) |
>-								(na2 = ~a2) & a3 & na4 & (nb2 = ~b2) & b3 ) |
>-						b4 & (na3 & nb3 & (na4 & a2 | a4) |
>-								na2 & a4 & nb2));
>-				this.extra[3][i] =
>-					a2 & b2 & ~(a1 ^ b1) & (na3 & nb3 | na4 & nb4) |
>-					a1 & b1 & (a2 ^ b2) & na3 & nb3 |
>-					(a1 & na2 & (nb1 = ~b1) & b2 | ~a1 & a2 & b1 & nb2) & na4 & nb4;
>-				this.extra[4][i] =
>-					b1 & nb2 & nb4 |
>-					~a1 & (a3 |
>-							a2 & na3 & (b1 | nb2)) |
>-					(a1 | na2) & nb1 & b2 & nb3 |
>-					nb1 & b3 |
>-					a1 & na2 & (na4 |
>-								b1 & nb2 & (a3 | b3));
>-				this.extra[5][i] =
>-					a4 | b4;
>-
>-				// WORK recode if tests succeed
>-				this.extra[4][i] &= 
>-					~(a1 & na2 & na3 & a4 & nb1 & b2 & nb3 & nb4
>-							| ~a1 & a2 & na3 & na4 & b1 & nb2 & nb3 & b4);
>-		
>-				thisHasNulls = thisHasNulls ||
>-					this.extra[5][i] != 0 ||
>-					this.extra[2][i] != 0 ||
>-					this.extra[3][i] != 0 ||
>-					this.extra[4][i] != 0;
>-				if (coverageTestFlag && coverageTestId == 43) {
>-					this.extra[5][i] = ~0;
>-				}
>-			}
>+ // MACRO :'b,'es/nullBit$.$/extra[\1 + 1][i]/g
>+		// manage definite assignment
>+		for (i = 0; i < mergeLimit; i++) {
>+	 		this.extra[0][i] &= otherInits.extra[0][i];
>+	 		this.extra[1][i] |= otherInits.extra[1][i];
> 		}
>-		else {
>-			for (i = 0; i < mergeLimit; i++) {
>-				this.extra[0][i] &= 
>-					otherInits.extra[0][i];
>-				this.extra[1][i] |= 
>-					otherInits.extra[1][i];
>-				this.extra[4][i] =
>-					~(~this.extra[2][i] &
>-							~this.extra[3][i] &
>-							~this.extra[4][i]) &
>-					~(this.extra[2][i] & 
>-							(this.extra[3][i] | 
>-							this.extra[5][i]));
>-				this.extra[2][i] = 
>-				this.extra[3][i] = 0;
>-				thisHasNulls = thisHasNulls ||
>-					this.extra[4][i] != 0 ||
>-					this.extra[5][i] != 0;
>-				if (coverageTestFlag && coverageTestId == 44) {
>-					this.extra[5][i] = ~0;
>-				}
>+		for (; i < copyLimit; i++) {
>+		 	this.extra[1][i] = otherInits.extra[1][i];
>+		}
>+		for (; i < resetLimit; i++) {
>+		 	this.extra[0][i] = 0;
>+		}
>+		// refine null bits requirements
>+		if (!otherHasNulls) {
>+		 if (resetLimit < mergeLimit) {
>+			resetLimit = mergeLimit;
>+		 }
>+		 copyLimit = 0; // no need to carry inexisting nulls
>+		 mergeLimit = 0;
>+		}
>+		if (!thisHadNulls) {
>+		 resetLimit = 0; // no need to reset anything
>+		}
>+		// compose nulls
>+		for (i = 0; i < mergeLimit; i++) {
>+ 		this.extra[1 + 1][i] = (a2 = this.extra[2 + 1][i]) & (a3 = this.extra[3 + 1][i]) 
>+ 							& (a4 = this.extra[4 + 1][i]) & (b1 = otherInits.extra[1 + 1][i]) 
>+ 							& (nb2 = ~(b2 = otherInits.extra[2 + 1][i]))
>+ 			| (a1 = this.extra[1 + 1][i]) & (b1 & (a3 & a4 & (b3 = otherInits.extra[3 + 1][i]) 
>+ 													& (b4 = otherInits.extra[4 + 1][i])
>+ 												| (na2 = ~a2) & nb2 
>+ 													& ((nb4 = ~b4) | (na4 = ~a4) 
>+ 															| (na3 = ~a3) & (nb3 = ~b3))
>+ 												| a2 & b2 & ((na4 | na3) & (nb4	| nb3)))
>+ 											| na2 & b2 & b3 & b4);
>+ 		this.extra[2 + 1][i] = b2 & (nb3 | (nb1 = ~b1) | a3 & (a4 | (na1 = ~a1)) & nb4)
>+ 			| a2 & (b2 | na4 & b3 & (b4 | nb1) | na3 | na1);
>+ 		this.extra[3 + 1][i] = b3 & (nb2 & b4 | nb1 | a3 & (na4 & nb4 | a4 & b4))
>+ 			| a3 & (na2 & a4 | na1)
>+ 			| (a2 | na1) & b1 & nb2 & nb4
>+ 			| a1 & na2 & na4 & (b2 | nb1);
>+ 		this.extra[4 + 1][i] = na3 & (nb1 & nb3 & b4
>+ 			| b1 & (nb2 & nb3 | a4 & b2 & nb4)
>+ 			| na1 & a4 & (nb3 | b1 & b2))
>+ 			| a3 & a4 & (b3 & b4 | b1 & nb2)
>+ 			| na2 & (nb1 & b4 | b1 & nb3 | na1 & a4) & nb2
>+ 			| a1 & (na3 & (nb3 & b4
>+ 			| b1 & b2 & b3 & nb4
>+ 			| na2 & (nb3 | nb2))
>+ 			| na2 & b3 & b4
>+ 			| a2 & (nb1 & b4 | a3 & na4 & b1) & nb3);
>+			thisHasNulls = thisHasNulls ||
>+				this.extra[3][i] != 0 ||
>+				this.extra[4][i] != 0 ||
>+				this.extra[5][i] != 0 ;
>+			if (coverageTestFlag && coverageTestId == 37) {
>+				this.extra[5][i] = ~0;
> 			}
> 		}
> 		for (; i < copyLimit; i++) {
>-			this.extra[1][i] = otherInits.extra[1][i];
>-			this.extra[4][i] =
>-				~(~otherInits.extra[2][i] &
>-					~otherInits.extra[3][i] &
>-					~otherInits.extra[4][i]) &
>-				~(otherInits.extra[2][i] & 
>-					(otherInits.extra[3][i] |
>-					otherInits.extra[5][i]));
>-			this.extra[5][i] = otherInits.extra[5][i];
>+ 		this.extra[1 + 1][i] = 0;
>+ 		this.extra[2 + 1][i] = (b2 = otherInits.extra[2 + 1][i]) & (nb3 = ~(b3 = otherInits.extra[3 + 1][i]) | (nb1 = ~(b1 = otherInits.extra[1 + 1][i])));
>+ 		this.extra[3 + 1][i] = b3 & ((nb2 = ~b2) & (b4 = otherInits.extra[4 + 1][i]) | nb1) | b1 & nb2 & ~b4;
>+ 		this.extra[4 + 1][i] = (nb3 | nb2) & nb1 & b4	| b1 & nb3 & nb2;
> 			thisHasNulls = thisHasNulls ||
>+				this.extra[3][i] != 0 ||
> 				this.extra[4][i] != 0 ||
> 				this.extra[5][i] != 0;
>-			if (coverageTestFlag && coverageTestId == 45) {
>+			if (coverageTestFlag && coverageTestId == 38) {
> 				this.extra[5][i] = ~0;
> 			}
> 		}
> 		for (; i < resetLimit; i++) {
>-			this.extra[4][i] =
>-				~(~this.extra[2][i] &
>-						~this.extra[3][i] &
>-						~this.extra[4][i]) &
>-				~(this.extra[2][i] & 
>-						(this.extra[3][i] | 
>-						this.extra[5][i]));
>-			this.extra[0][i] = 
>-			this.extra[2][i] = 
>-			this.extra[3][i] = 0;
>+ 		a1 = this.extra[1 + 1][i];
>+ 		this.extra[1 + 1][i] = 0;
>+ 		this.extra[2 + 1][i] = (a2 = this.extra[2 + 1][i]) & (na3 = ~(a3 = this.extra[3 + 1][i]) | (na1 = ~a1));
>+ 		this.extra[3 + 1][i] = a3 & ((na2 = ~a2) & (a4 = this.extra[4 + 1][i]) | na1) | a1 & na2 & ~a4;
>+ 		this.extra[4 + 1][i] = (na3 | na2) & na1 & a4	| a1 & na3 & na2;
> 			thisHasNulls = thisHasNulls ||
>+				this.extra[3][i] != 0 ||
> 				this.extra[4][i] != 0 ||
> 				this.extra[5][i] != 0;
>-			if (coverageTestFlag && coverageTestId == 46) {
>+			if (coverageTestFlag && coverageTestId == 39) {
> 				this.extra[5][i] = ~0;
> 			}
> 		}
>@@ -1577,19 +1493,15 @@
> 			return "FlowInfo<def: " + this.definiteInits //$NON-NLS-1$
> 				+", pot: " + this.potentialInits //$NON-NLS-1$
> 				+ ", reachable:" + ((this.tagBits & UNREACHABLE) == 0) //$NON-NLS-1$
>-				+", nullS1: " + this.nullAssignmentStatusBit1 //$NON-NLS-1$
>-				+", nullS2: " + this.nullAssignmentStatusBit2 //$NON-NLS-1$
>-				+", nullV1: " + this.nullAssignmentValueBit1 //$NON-NLS-1$
>-				+", nullV2: " + this.nullAssignmentValueBit2 //$NON-NLS-1$
>+				+", null: " + this.nullBit1 //$NON-NLS-1$
>+					+ this.nullBit2 + this.nullBit3 + this.nullBit4
> 				+">"; //$NON-NLS-1$
> 		}
> 		else {
> 			String def = "FlowInfo<def:[" + this.definiteInits, //$NON-NLS-1$
> 				pot = "], pot:[" + this.potentialInits, //$NON-NLS-1$
>-				nullS1 = ", nullS1:[" + this.nullAssignmentStatusBit1, //$NON-NLS-1$
>-				nullS2 = "], nullS2:[" + this.nullAssignmentStatusBit2, //$NON-NLS-1$
>-				nullV1 = "], nullV1:[" + this.nullAssignmentValueBit1, //$NON-NLS-1$
>-				nullV2 = "], nullV2:[" + this.nullAssignmentValueBit2; //$NON-NLS-1$
>+				nullS = ", null:[" + this.nullBit1 //$NON-NLS-1$
>+					+ this.nullBit2 + this.nullBit3 + this.nullBit4;
> 			int i, ceil;
> 			for (i = 0, ceil = this.extra[0].length > 3 ? 
> 								3 : 
>@@ -1597,22 +1509,17 @@
> 				i < ceil; i++) {
> 				def += "," + this.extra[0][i]; //$NON-NLS-1$
> 				pot += "," + this.extra[1][i]; //$NON-NLS-1$
>-				nullS1 += "," + this.extra[2][i]; //$NON-NLS-1$
>-				nullS2 += "," + this.extra[3][i]; //$NON-NLS-1$
>-				nullV1 += "," + this.extra[4][i]; //$NON-NLS-1$
>-				nullV2 += "," + this.extra[5][i]; //$NON-NLS-1$
>+				nullS += "," + this.extra[2][i] //$NON-NLS-1$
>+				 + this.extra[3][i] + this.extra[4][i] + this.extra[5][i];
> 			}
> 			if (ceil < this.extra[0].length) {
> 				def += ",..."; //$NON-NLS-1$
> 				pot += ",..."; //$NON-NLS-1$
>-				nullS1 += ",..."; //$NON-NLS-1$
>-				nullS2 += ",..."; //$NON-NLS-1$
>-				nullV1 += ",..."; //$NON-NLS-1$
>-				nullV2 += ",..."; //$NON-NLS-1$
>+				nullS += ",..."; //$NON-NLS-1$
> 			}
> 			return def + pot 
> 				+ "], reachable:" + ((this.tagBits & UNREACHABLE) == 0) //$NON-NLS-1$
>-				+ nullS1 + nullS2 + nullV1 + nullV2
>+				+ nullS
> 				+ "]>"; //$NON-NLS-1$
> 		}
> 	}
>@@ -1659,10 +1566,10 @@
> 		long mask;
> 		copy.definiteInits = this.definiteInits & (mask = ~((1L << limit)-1));
> 		copy.potentialInits = this.potentialInits & mask;
>-		copy.nullAssignmentStatusBit1 = this.nullAssignmentStatusBit1 & mask;
>-		copy.nullAssignmentStatusBit2 = this.nullAssignmentStatusBit2 & mask;
>-		copy.nullAssignmentValueBit1 = this.nullAssignmentValueBit1 & mask;
>-		copy.nullAssignmentValueBit2 = this.nullAssignmentValueBit2 & mask;
>+		copy.nullBit1 = this.nullBit1 & mask;
>+		copy.nullBit2 = this.nullBit2 & mask;
>+		copy.nullBit3 = this.nullBit3 & mask;
>+		copy.nullBit4 = this.nullBit4 & mask;
> 	} 
> 	// use extra vector
> 	if (this.extra == null) {
>Index: compiler/org/eclipse/jdt/internal/compiler/flow/FlowInfo.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/flow/FlowInfo.java,v
>retrieving revision 1.31
>diff -u -r1.31 FlowInfo.java
>--- compiler/org/eclipse/jdt/internal/compiler/flow/FlowInfo.java	28 Mar 2006 20:32:37 -0000	1.31
>+++ compiler/org/eclipse/jdt/internal/compiler/flow/FlowInfo.java	21 Apr 2006 14:13:19 -0000
>@@ -141,6 +141,15 @@
> 
> /**
> * Check status of potential null assignment for a local. Return true if there 
>+ * is a reasonable expectation that the variable be non null at this point.
>+ * @param local LocalVariableBinding - the binding for the checked local
>+ * @return true if there is a reasonable expectation that local be non null at 
>+ * this point
>+ */
>+public abstract boolean isPotentiallyNonNull(LocalVariableBinding local);
>+	
>+/**
>+ * Check status of potential null assignment for a local. Return true if there 
> * is a reasonable expectation that the variable be null at this point. This 
> * includes the protected null case, so as to augment diagnostics, but does not
> * really check that someone deliberately assigned to null on any specific
>@@ -184,7 +193,7 @@
> * @param local the checked local variable
> */
> abstract public void markAsComparedEqualToNull(LocalVariableBinding local);
>-	
>+
> 	/**
> 	 * Record a field got definitely assigned.
> 	 */
>Index: compiler/org/eclipse/jdt/internal/compiler/flow/ConditionalFlowInfo.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/flow/ConditionalFlowInfo.java,v
>retrieving revision 1.25
>diff -u -r1.25 ConditionalFlowInfo.java
>--- compiler/org/eclipse/jdt/internal/compiler/flow/ConditionalFlowInfo.java	8 Mar 2006 09:54:00 -0000	1.25
>+++ compiler/org/eclipse/jdt/internal/compiler/flow/ConditionalFlowInfo.java	21 Apr 2006 14:13:19 -0000
>@@ -102,6 +102,11 @@
> 			|| initsWhenFalse.isPotentiallyAssigned(local);
> }
> 	
>+public boolean isPotentiallyNonNull(LocalVariableBinding local) {
>+	return initsWhenTrue.isPotentiallyNonNull(local) 
>+		|| initsWhenFalse.isPotentiallyNonNull(local);
>+}	
>+	
> public boolean isPotentiallyNull(LocalVariableBinding local) {
> 	return initsWhenTrue.isPotentiallyNull(local) 
> 		|| initsWhenFalse.isPotentiallyNull(local);
>Index: compiler/org/eclipse/jdt/internal/compiler/flow/LoopingFlowContext.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/flow/LoopingFlowContext.java,v
>retrieving revision 1.33
>diff -u -r1.33 LoopingFlowContext.java
>--- compiler/org/eclipse/jdt/internal/compiler/flow/LoopingFlowContext.java	28 Mar 2006 20:32:37 -0000	1.33
>+++ compiler/org/eclipse/jdt/internal/compiler/flow/LoopingFlowContext.java	21 Apr 2006 14:13:19 -0000
>@@ -121,12 +121,25 @@
> 			Expression expression = this.nullReferences[i];
> 			// final local variable
> 			switch (this.nullCheckTypes[i]) {
>+				case CAN_ONLY_NON_NULL :
>+					if (flowInfo.isDefinitelyNonNull(local)) {
>+						this.nullReferences[i] = null;
>+						scope.problemReporter().localVariableCannotBeNull(local, expression);
>+						continue;
>+					}
>+					break;
> 				case CAN_ONLY_NULL_NON_NULL :
> 					if (flowInfo.isDefinitelyNonNull(local)) {
> 						this.nullReferences[i] = null;
> 						scope.problemReporter().localVariableCannotBeNull(local, expression);
> 						continue;
> 					}
>+					if (flowInfo.isDefinitelyNull(local)) {
>+						this.nullReferences[i] = null;
>+						scope.problemReporter().localVariableCanOnlyBeNull(local, expression);
>+						continue;
>+					}
>+					break;
> 				case CAN_ONLY_NULL :
> 					if (flowInfo.isDefinitelyNull(local)) {
> 						this.nullReferences[i] = null;
>@@ -311,11 +324,8 @@
> 	}
> 	switch (checkType) {
> 		case CAN_ONLY_NULL_NON_NULL :
>-		case CAN_ONLY_NULL:
> 			if (flowInfo.isDefinitelyNonNull(local)) {
>-				if (checkType == CAN_ONLY_NULL_NON_NULL) {
>-					scope.problemReporter().localVariableCannotBeNull(local, reference);
>-				}
>+				scope.problemReporter().localVariableCannotBeNull(local, reference);
> 				return;
> 			}
> 			if (flowInfo.isDefinitelyNull(local)) {
>@@ -325,6 +335,21 @@
> 			if (flowInfo.isPotentiallyUnknown(local)) {
> 				return;
> 			}
>+			if (flowInfo.isPotentiallyNonNull(local)) {
>+			 recordNullReference(local, reference,CAN_ONLY_NON_NULL);
>+			} else {
>+			 recordNullReference(local, reference, checkType);
>+			}
>+			return;
>+		case CAN_ONLY_NULL:
>+			if (flowInfo.isPotentiallyNonNull(local)
>+					|| flowInfo.isPotentiallyUnknown(local)) {
>+				return;
>+			}
>+			if (flowInfo.isDefinitelyNull(local)) {
>+				scope.problemReporter().localVariableCanOnlyBeNull(local, reference);
>+				return;
>+			}
> 			recordNullReference(local, reference, checkType);
> 			return;
> 		case MAY_NULL :
>Index: compiler/org/eclipse/jdt/internal/compiler/flow/FlowContext.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/flow/FlowContext.java,v
>retrieving revision 1.51
>diff -u -r1.51 FlowContext.java
>--- compiler/org/eclipse/jdt/internal/compiler/flow/FlowContext.java	28 Mar 2006 20:32:37 -0000	1.51
>+++ compiler/org/eclipse/jdt/internal/compiler/flow/FlowContext.java	21 Apr 2006 14:13:19 -0000
>@@ -36,13 +36,6 @@
> 	
> 	// preempt marks looping contexts
> 	public final static FlowContext NotContinuableContext = new FlowContext(null, null);
>-	public static final int 
>-	 CAN_ONLY_NULL_NON_NULL = 20, 
>-	 	// check against null and non null, with definite values -- comparisons
>-	 CAN_ONLY_NULL = 21,
>-	 	// check against null, with definite values -- assignment to null
>-	 MAY_NULL = 22;
>-			// check against null, with potential values -- NPE guard
> 	public ASTNode associatedNode; 
> 		public FlowContext parent;
> 	public NullInfoRegistry initsOnFinally; 
>@@ -468,6 +461,17 @@
> 	}
> }
> 
>+public static final int 
>+ CAN_ONLY_NULL_NON_NULL = 20, 
>+ 	// check against null and non null, with definite values -- comparisons
>+ CAN_ONLY_NULL = 21,
>+ 	// check against null, with definite values -- assignment to null
>+ MAY_NULL = 22,
>+	// check against null, with potential values -- NPE guard
>+ CAN_ONLY_NON_NULL = 23;
>+	// subcase of CAN_ONLY_NULL_NON_NULL, in which we know that the local
>+	// may be non null
>+
> /**
> * Record a null reference for use by deferred checks. Only looping or 
> * finally contexts really record that information. The context may
>Index: compiler/org/eclipse/jdt/internal/compiler/flow/NullInfoRegistry.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/flow/NullInfoRegistry.java,v
>retrieving revision 1.3
>diff -u -r1.3 NullInfoRegistry.java
>--- compiler/org/eclipse/jdt/internal/compiler/flow/NullInfoRegistry.java	16 Mar 2006 11:59:44 -0000	1.3
>+++ compiler/org/eclipse/jdt/internal/compiler/flow/NullInfoRegistry.java	21 Apr 2006 14:13:20 -0000
>@@ -24,15 +24,8 @@
> * flow info presented in input of finally blocks.
> */
> public class NullInfoRegistry extends UnconditionalFlowInfo {
>-	// encoding of null status at this level:
>-//	public long nullAssignmentStatusBit1;
>-	// assigned null
>-//	public long nullAssignmentStatusBit2;
>-	// assigned non null
>-//	public long nullAssignmentValueBit1;
>-	// assigned unknown
>-//	public long nullAssignmentValueBit2;
>-	// message send (no NPE)
>+	// significant states at this level:
>+ 	// def. non null, def. null, def. unknown, prot. non null
> 
> // PREMATURE implement coverage and low level tests
> 
>@@ -46,38 +39,32 @@
> */
> public NullInfoRegistry(UnconditionalFlowInfo upstream) {
> 	if ((upstream.tagBits & NULL_FLAG_MASK) != 0) {
>-		long a1, a2, a3, b1nb2, b3, b4;
>-		a1 = this.nullAssignmentStatusBit1 = 
>-			(b1nb2 = upstream.nullAssignmentStatusBit1 
>-					& ~upstream.nullAssignmentStatusBit2)
>-				& (b3 = upstream.nullAssignmentValueBit1)
>-				& ~(b4 = upstream.nullAssignmentValueBit2);
>-		a2 = this.nullAssignmentStatusBit2 =
>-			b1nb2 & ~b3 & b4;
>-		a3 = this.nullAssignmentValueBit1 =
>-			b1nb2 & b3 & b4;
>-		if ((a1 | a2 | a3) != 0) {
>+		long u1, u2, u3, u4, nu2, nu3, nu4;
>+		this.nullBit2 = (u1 = upstream.nullBit1)
>+			& (u2 = upstream.nullBit2)
>+			& (nu3 = ~(u3 = upstream.nullBit3))
>+			& (nu4 = ~(u4 = upstream.nullBit4));
>+		this.nullBit3 =	u1 & (nu2 = ~u2) & u3 & nu4;
>+		this.nullBit4 =	u1 & nu2 &nu3 & u4;
>+		if ((this.nullBit2 | this.nullBit3 | this.nullBit4) != 0) {
> 			this.tagBits |= NULL_FLAG_MASK;
> 		}
> 		if (upstream.extra != null) {
> 			this.extra = new long[extraLength][];
>-			int length= upstream.extra[2].length;
>+			int length = upstream.extra[2].length;
> 			for (int i = 2; i < extraLength; i++) {
> 				this.extra[i] = new long[length];
> 			}
> 			for (int i = 0; i < length; i++) {
>-				a1 = this.extra[2][i] = 
>-					(b1nb2 = upstream.extra[2][i] 
>-							& ~upstream.extra[3][i])
>-						& (b3 = upstream.extra[4][i])
>-						& ~(b4 = upstream.extra[5][i]);
>-				a2 = this.extra[3][i] =
>-					b1nb2 & ~b3 & b4;
>-				a3 = this.extra[4][i] =
>-					b1nb2 & b3 & b4;
>-				if ((a1 | a2 | a3) != 0) {
>-					this.tagBits |= NULL_FLAG_MASK;
>-				}
>+ 		this.extra[2 + 1][i] = (u1 = upstream.extra[1 + 1][i])
>+ 			& (u2 = upstream.extra[2 + 1][i])
>+ 			& (nu3 = ~(u3 = upstream.extra[3 + 1][i]))
>+ 			& (nu4 = ~(u4 = upstream.extra[4 + 1][i]));
>+ 		this.extra[3 + 1][i] =	u1 & (nu2 = ~u2) & u3 & nu4;
>+ 		this.extra[4 + 1][i] =	u1 & nu2 &nu3 & u4;
>+ 		if ((this.extra[2 + 1][i] | this.extra[3 + 1][i] | this.extra[4 + 1][i]) != 0) {
>+ 			this.tagBits |= NULL_FLAG_MASK;
>+ 		}
> 			}
> 		}
> 	}
>@@ -94,10 +81,10 @@
> 		return this;
> 	}
> 	this.tagBits |= NULL_FLAG_MASK;
>-	this.nullAssignmentStatusBit1 |= other.nullAssignmentStatusBit1;
>-	this.nullAssignmentStatusBit2 |= other.nullAssignmentStatusBit2;
>-	this.nullAssignmentValueBit1 |= other.nullAssignmentValueBit1;
>-	this.nullAssignmentValueBit2 |= other.nullAssignmentValueBit2;
>+	this.nullBit1 |= other.nullBit1;
>+	this.nullBit2 |= other.nullBit2;
>+	this.nullBit3 |= other.nullBit3;
>+	this.nullBit4 |= other.nullBit4;
> 	if (other.extra != null) {
> 		if (this.extra == null) {
> 			this.extra = new long[extraLength][];
>@@ -128,142 +115,167 @@
> }
> 
> public void markAsComparedEqualToNonNull(LocalVariableBinding local) {
>-	this.tagBits |= NULL_FLAG_MASK;
>-	int position;
>-	// position is zero-based
>-	if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
>-		// use bits
>-		this.nullAssignmentValueBit2 |= (1L << position);
>-	} 
>-	else {
>-		// use extra vector
>-		int vectorIndex = (position / BitCacheSize) - 1;
>-		if (this.extra == null) {
>-			int length = vectorIndex + 1;
>-			this.extra = new long[extraLength][];
>-			for (int j = 2 /* do not care about non null info */;
>-					j < extraLength; j++) {
>-				this.extra[j] = new long[length];
>-			}
>-		}
>-		else {
>-			int oldLength;
>-			if (vectorIndex >= (oldLength = this.extra[2].length)) {
>-				int newLength = vectorIndex + 1;
>-				for (int j = 2 /* do not care about non null info */; 
>-						j < extraLength; j++) {
>-					System.arraycopy(this.extra[j], 0, 
>-						(this.extra[j] = new long[newLength]), 0, 
>-						oldLength);
>+	// protected from non-object locals in calling methods
>+	if (this != DEAD_END) {
>+ 	this.tagBits |= NULL_FLAG_MASK;
>+ 	int position;
>+ 	// position is zero-based
>+ 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) { // use bits
>+ 		// set protected non null
>+ 		this.nullBit1 |= (1L << position);
>+ 		if (coverageTestFlag && coverageTestId == 290) {
>+ 		 	this.nullBit1 = 0;
>+ 		}
>+ 	} 
>+ 	else {
>+ 		// use extra vector
>+			int vectorIndex = (position / BitCacheSize) - 1;
>+			if (this.extra == null) {
>+				int length = vectorIndex + 1;
>+				this.extra = new long[extraLength][];
>+				for (int j = 2; j < extraLength; j++) {
>+					this.extra[j] = new long[length];
>+				}
>+			} 
>+			else {
>+				int oldLength; // might need to grow the arrays
>+				if (vectorIndex >= (oldLength = this.extra[2].length)) {
>+					for (int j = 2; j < extraLength; j++) {
>+						System.arraycopy(this.extra[j], 0, 
>+							(this.extra[j] = new long[vectorIndex + 1]), 0, 
>+							oldLength);
>+					}
> 				}
> 			}
>-		}
>-		this.extra[5][vectorIndex] |= (1L << (position % BitCacheSize));
>+ 		this.extra[2][vectorIndex] |= (1L << (position % BitCacheSize));
>+ 		if (coverageTestFlag && coverageTestId == 300) {
>+ 		 	this.extra[5][vectorIndex] = ~0;
>+ 		}
>+ 	}
> 	}
> }
> 
> public void markAsDefinitelyNonNull(LocalVariableBinding local) {
>-	this.tagBits |= NULL_FLAG_MASK;
>-	int position;
>-	// position is zero-based
>-	if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
>-		// use bits
>-		this.nullAssignmentStatusBit2 |= (1L << position);
>-	} 
>-	else {
>-		// use extra vector
>-		int vectorIndex = (position / BitCacheSize) - 1;
>-		if (this.extra == null) {
>-			int length = vectorIndex + 1;
>-			this.extra = new long[extraLength][];
>-			for (int j = 2 /* do not care about non null info */; 
>-					j < extraLength; j++) {
>-				this.extra[j] = new long[length];
>-			}
>-		}
>-		else {
>-			int oldLength;
>-			if (vectorIndex >= (oldLength = this.extra[2].length)) {
>-				int newLength = vectorIndex + 1;
>-				for (int j = 2 /* do not care about non null info */; 
>-						j < extraLength; j++) {
>-					System.arraycopy(this.extra[j], 0, 
>-						(this.extra[j] = new long[newLength]), 0, 
>-						oldLength);
>+	// protected from non-object locals in calling methods
>+	if (this != DEAD_END) {
>+ 	this.tagBits |= NULL_FLAG_MASK;
>+ 	int position;
>+ 	// position is zero-based
>+ 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) { // use bits
>+ 		// set assigned non null
>+ 		this.nullBit3 |= (1L << position);
>+ 		if (coverageTestFlag && coverageTestId == 290) {
>+ 		 	this.nullBit1 = 0;
>+ 		}
>+ 	} 
>+ 	else {
>+ 		// use extra vector
>+			int vectorIndex = (position / BitCacheSize) - 1;
>+			if (this.extra == null) {
>+				int length = vectorIndex + 1;
>+				this.extra = new long[extraLength][];
>+				for (int j = 2; j < extraLength; j++) {
>+					this.extra[j] = new long[length];
>+				}
>+			} 
>+			else {
>+				int oldLength; // might need to grow the arrays
>+				if (vectorIndex >= (oldLength = this.extra[2].length)) {
>+					for (int j = 2; j < extraLength; j++) {
>+						System.arraycopy(this.extra[j], 0, 
>+							(this.extra[j] = new long[vectorIndex + 1]), 0, 
>+							oldLength);
>+					}
> 				}
> 			}
>-		}
>-		this.extra[3][vectorIndex] |= (1L << (position % BitCacheSize));
>+ 		this.extra[4][vectorIndex] |= (1L << (position % BitCacheSize));
>+ 		if (coverageTestFlag && coverageTestId == 300) {
>+ 		 	this.extra[5][vectorIndex] = ~0;
>+ 		}
>+ 	}
> 	}
> }
>-
>+// PREMATURE consider ignoring extra 0 to 2 included - means a1 should not be used either
>+// PREMATURE project protected non null onto something else
> public void markAsDefinitelyNull(LocalVariableBinding local) {
>-	this.tagBits |= NULL_FLAG_MASK;
>-	int position;
>-	// position is zero-based
>-	if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
>-		// use bits
>-		this.nullAssignmentStatusBit1 |= (1L << position);
>-	} 
>-	else {
>-		// use extra vector
>-		int vectorIndex = (position / BitCacheSize) - 1;
>-		if (this.extra == null) {
>-			int length = vectorIndex + 1;
>-			this.extra = new long[extraLength][];
>-			for (int j = 2 /* do not care about non null info */;
>-					j < extraLength; j++) {
>-				this.extra[j] = new long[length];
>-			}
>-		}
>-		else {
>-			int oldLength;
>-			if (vectorIndex >= (oldLength = this.extra[2].length)) {
>-				int newLength = vectorIndex + 1;
>-				for (int j = 2 /* do not care about non null info */; 
>-						j < extraLength; j++) {
>-					System.arraycopy(this.extra[j], 0, 
>-						(this.extra[j] = new long[newLength]), 0, 
>-						oldLength);
>+	// protected from non-object locals in calling methods
>+	if (this != DEAD_END) {
>+ 	this.tagBits |= NULL_FLAG_MASK;
>+ 	int position;
>+ 	// position is zero-based
>+ 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) { // use bits
>+ 		// set assigned null
>+ 		this.nullBit2 |= (1L << position);
>+ 		if (coverageTestFlag && coverageTestId == 290) {
>+ 		 	this.nullBit1 = 0;
>+ 		}
>+ 	} 
>+ 	else {
>+ 		// use extra vector
>+			int vectorIndex = (position / BitCacheSize) - 1;
>+			if (this.extra == null) {
>+				int length = vectorIndex + 1;
>+				this.extra = new long[extraLength][];
>+				for (int j = 2; j < extraLength; j++) {
>+					this.extra[j] = new long[length];
>+				}
>+			} 
>+			else {
>+				int oldLength; // might need to grow the arrays
>+				if (vectorIndex >= (oldLength = this.extra[2].length)) {
>+					for (int j = 2; j < extraLength; j++) {
>+						System.arraycopy(this.extra[j], 0, 
>+							(this.extra[j] = new long[vectorIndex + 1]), 0, 
>+							oldLength);
>+					}
> 				}
> 			}
>-		}
>-		this.extra[2][vectorIndex] |= (1L << (position % BitCacheSize));
>+ 		this.extra[3][vectorIndex] |= (1L << (position % BitCacheSize));
>+ 		if (coverageTestFlag && coverageTestId == 300) {
>+ 		 	this.extra[5][vectorIndex] = ~0;
>+ 		}
>+ 	}
> 	}
> }
> 
> public void markAsDefinitelyUnknown(LocalVariableBinding local) {
>-	this.tagBits |= NULL_FLAG_MASK;
>-	int position;
>-	// position is zero-based
>-	if ((position = local.id + this.maxFieldCount) < BitCacheSize) {
>-		// use bits
>-		this.nullAssignmentValueBit1 |= (1L << position);
>-	} 
>-	else {
>-		// use extra vector
>-		int vectorIndex = (position / BitCacheSize) - 1;
>-		if (this.extra == null) {
>-			int length = vectorIndex + 1;
>-			this.extra = new long[extraLength][];
>-			for (int j = 2 /* do not care about non null info */;
>-					j < extraLength; j++) {
>-				this.extra[j] = new long[length];
>-			}
>-		}
>-		else {
>-			int oldLength;
>-			if (vectorIndex >= (oldLength = this.extra[2].length)) {
>-				int newLength = vectorIndex + 1;
>-				for (int j = 2 /* do not care about non null info */; 
>-						j < extraLength; j++) {
>-					System.arraycopy(this.extra[j], 0, 
>-						(this.extra[j] = new long[newLength]), 0, 
>-						oldLength);
>+	// protected from non-object locals in calling methods
>+	if (this != DEAD_END) {
>+ 	this.tagBits |= NULL_FLAG_MASK;
>+ 	int position;
>+ 	// position is zero-based
>+ 	if ((position = local.id + this.maxFieldCount) < BitCacheSize) { // use bits
>+ 		// set assigned unknown
>+ 		this.nullBit4 |= (1L << position);
>+ 		if (coverageTestFlag && coverageTestId == 290) {
>+ 		 	this.nullBit1 = 0;
>+ 		}
>+ 	} 
>+ 	else {
>+ 		// use extra vector
>+			int vectorIndex = (position / BitCacheSize) - 1;
>+			if (this.extra == null) {
>+				int length = vectorIndex + 1;
>+				this.extra = new long[extraLength][];
>+				for (int j = 2; j < extraLength; j++) {
>+					this.extra[j] = new long[length];
>+				}
>+			} 
>+			else {
>+				int oldLength; // might need to grow the arrays
>+				if (vectorIndex >= (oldLength = this.extra[2].length)) {
>+					for (int j = 2; j < extraLength; j++) {
>+						System.arraycopy(this.extra[j], 0, 
>+							(this.extra[j] = new long[vectorIndex + 1]), 0, 
>+							oldLength);
>+					}
> 				}
> 			}
>-		}
>-		this.extra[4][vectorIndex] |= (1L << (position % BitCacheSize));
>+ 		this.extra[5][vectorIndex] |= (1L << (position % BitCacheSize));
>+ 		if (coverageTestFlag && coverageTestId == 300) {
>+ 		 	this.extra[5][vectorIndex] = ~0;
>+ 		}
>+ 	}
> 	}
> }
> 
>@@ -281,58 +293,32 @@
> 	if ((this.tagBits & NULL_FLAG_MASK) == 0) {
> 		return flowInfo.unconditionalInits();
> 	}
>-//	// Reference implementation
>-//	UnconditionalFlowInfo source = flowInfo.unconditionalCopy();
>-//	long mask;
>-//	// clear uncompatible protections
>-//	mask = source.nullAssignmentStatusBit1 & source.nullAssignmentStatusBit2
>-//			// prot. non null
>-//		& (this.nullAssignmentStatusBit1 | this.nullAssignmentValueBit1);
>-//			// null or unknown
>-//	source.nullAssignmentStatusBit1 &= ~mask;
>-//	source.nullAssignmentStatusBit2 &= ~mask;
>-//	mask = ~source.nullAssignmentStatusBit1 & source.nullAssignmentStatusBit2
>-//			// prot. null
>-//		& (this.nullAssignmentStatusBit2 | this.nullAssignmentValueBit1
>-//				| this.nullAssignmentValueBit2);
>-//			// non null or unknown
>-//	source.nullAssignmentStatusBit2 &= ~mask;
>-//	// clear uncompatible assignments
>-//	mask = source.nullAssignmentStatusBit1 & ~source.nullAssignmentStatusBit2
>-//		& (source.nullAssignmentValueBit1 & ~source.nullAssignmentValueBit2 
>-//				& (this.nullAssignmentStatusBit2 | this.nullAssignmentValueBit1
>-//						| this.nullAssignmentValueBit2)
>-//			| ~source.nullAssignmentValueBit1 & source.nullAssignmentValueBit2
>-//				& (this.nullAssignmentStatusBit1 | this.nullAssignmentValueBit1)
>-//			| source.nullAssignmentValueBit1 & source.nullAssignmentValueBit2
>-//				& (this.nullAssignmentStatusBit1));
>-//	source.nullAssignmentStatusBit1 &= ~mask;
>-	long m1, m2, m3, a1, a2, a3, a4, s1, s2, s3, s4;
>+	long m, m1, nm1, m2, nm2, m3, a2, a3, a4, s1, s2, ns2, s3, ns3, s4, ns4;
> 	boolean newCopy = false;
> 	UnconditionalFlowInfo source = flowInfo.unconditionalInits();
>-	// clear uncompatible protections
>-	m1 = (s1 = source.nullAssignmentStatusBit1) 
>-			& (s2 = source.nullAssignmentStatusBit2)
>+	// clear incompatible protections
>+	m1 = (s1 = source.nullBit1) & (s3 = source.nullBit3) 
>+				& (s4 = source.nullBit4)
> 			// prot. non null
>-		& ((a1 = this.nullAssignmentStatusBit1)
>-				| (a3 = this.nullAssignmentValueBit1));
>+		& ((a2 = this.nullBit2) | (a4 = this.nullBit4));
> 			// null or unknown
>-	m2 = ~s1 & s2
>+	m2 = s1 & (s2 = this.nullBit2) & (s3 ^ s4)
> 			// prot. null
>-		& ((a2 = this.nullAssignmentStatusBit2) | a3
>-				| (a4 = this.nullAssignmentValueBit2));
>+		& ((a3 = this.nullBit3) | a4);
> 			// non null or unknown
>-	// clear uncompatible assignments
>-	m3 = s1 & ~s2
>-		& ((s3 = source.nullAssignmentValueBit1) 
>-				& ~(s4 = source.nullAssignmentValueBit2) 
>-				& (a2 | a3 | a4)
>-					| s4 & (~s3 & a3 | a1));
>-	if ((m1 | m2 | m3) != 0) {
>+	// clear incompatible assignments
>+	// PREMATURE check effect of protected non null (no NPE on call)
>+	// TODO (maxime) code extensive implementation tests
>+	m3 = s1	& (s2 & (ns3 = ~s3) & (ns4 = ~s4) & (a3 | a4)
>+				| (ns2 = ~s2) & s3 & ns4 & (a2 | a4)
>+				| ns2 & ns3 & s4 & (a2 | a3)); 
>+	if ((m = (m1 | m2 | m3)) != 0) {
> 		newCopy = true;
> 		source = source.unconditionalCopy();
>-		source.nullAssignmentStatusBit1 &= ~(m1 | m3);
>-		source.nullAssignmentStatusBit2 &= ~(m1 | m2);
>+		source.nullBit1 &= ~m;
>+		source.nullBit2 &= (nm1 = ~m1) & ((nm2 = ~m2) | a4);
>+		source.nullBit3 &= (nm1 | a2) & nm2;
>+		source.nullBit4 &= nm1 & nm2;
> 	}
> 	if (this.extra != null && source.extra != null) {
> 		int length = this.extra[2].length, sourceLength = source.extra[0].length;
>@@ -340,29 +326,24 @@
> 			length = sourceLength;
> 		}
> 		for (int i = 0; i < length; i++) {
>-			// clear uncompatible protections
>-			m1 = (s1 = source.extra[2][i]) & (s2 = source.extra[3][i])
>-					// prot. non null
>-				& ((a1 = this.extra[2][i]) | (a3 = this.extra[4][i]));
>-					// null or unknown
>-			m2 = ~s1 & s2
>-					// prot. null
>-				& ((a2 = this.extra[3][i]) | a3
>-						| (a4 = this.extra[5][i]));
>-					// non null or unknown
>-			// clear uncompatible assignments
>-			m3 = s1 & ~s2
>-				& ((s3 = source.extra[4][i]) & ~(s4 = source.extra[5][i]) 
>-						& (a2 | a3 | a4)
>-					| s4 & (~s3 & a3 | a1));
>-			if ((m1 | m2 | m3) != 0) {
>-				if (!newCopy) {
>-					newCopy = true;
>-					source = source.unconditionalCopy();
>-				}
>-				source.extra[2][i] &= ~(m1 | m3);
>-				source.extra[3][i] &= ~(m1 | m2);
>-			}
>+ 	m1 = (s1 = source.extra[1 + 1][i]) & (s3 = source.extra[3 + 1][i]) 
>+ 				& (s4 = source.extra[4 + 1][i])
>+ 		& ((a2 = this.extra[2 + 1][i]) | (a4 = this.extra[4 + 1][i]));
>+ 	m2 = s1 & (s2 = this.extra[2 + 1][i]) & (s3 ^ s4)
>+ 		& ((a3 = this.extra[3 + 1][i]) | a4);
>+ 	m3 = s1	& (s2 & (ns3 = ~s3) & (ns4 = ~s4) & (a3 | a4)
>+ 				| (ns2 = ~s2) & s3 & ns4 & (a2 | a4)
>+ 				| ns2 & ns3 & s4 & (a2 | a3)); 
>+ 	if ((m = (m1 | m2 | m3)) != 0) {
>+ 	 	if (! newCopy) {
>+ 		newCopy = true;
>+ 		source = source.unconditionalCopy();
>+ 	 	}
>+ 		source.extra[1 + 1][i] &= ~m;
>+ 		source.extra[2 + 1][i] &= (nm1 = ~m1) & ((nm2 = ~m2) | a4);
>+ 		source.extra[3 + 1][i] &= (nm1 | a2) & nm2;
>+ 		source.extra[4 + 1][i] &= nm1 & nm2;
>+ 	}
> 		}
> 	}
> 	return source;
>@@ -370,35 +351,25 @@
> 
> public String toString(){
> 	if (this.extra == null) {
>-		return "NullInfoRegistry<nullS1: " + this.nullAssignmentStatusBit1 //$NON-NLS-1$
>-			+", nullS2: " + this.nullAssignmentStatusBit2 //$NON-NLS-1$
>-			+", nullV1: " + this.nullAssignmentValueBit1 //$NON-NLS-1$
>-			+", nullV2: " + this.nullAssignmentValueBit2 //$NON-NLS-1$
>-			+">"; //$NON-NLS-1$
>+		return "NullInfoRegistry<" + this.nullBit1 //$NON-NLS-1$
>+			+ this.nullBit2 + this.nullBit3 + this.nullBit4
>+			+ ">"; //$NON-NLS-1$
> 	}
> 	else {
>-		String nullS1 = "NullInfoRegistry<nullS1:[" + this.nullAssignmentStatusBit1, //$NON-NLS-1$
>-			nullS2 = "], nullS2:[" + this.nullAssignmentStatusBit2, //$NON-NLS-1$
>-			nullV1 = "], nullV1:[" + this.nullAssignmentValueBit1, //$NON-NLS-1$
>-			nullV2 = "], nullV2:[" + this.nullAssignmentValueBit2; //$NON-NLS-1$
>-		int i, ceil;
>-		for (i = 0, ceil = this.extra[0].length > 3 ? 
>-							3 : 
>-							this.extra[0].length;
>-			i < ceil; i++) {
>-			nullS1 += "," + this.extra[2][i]; //$NON-NLS-1$
>-			nullS2 += "," + this.extra[3][i]; //$NON-NLS-1$
>-			nullV1 += "," + this.extra[4][i]; //$NON-NLS-1$
>-			nullV2 += "," + this.extra[5][i]; //$NON-NLS-1$
>-		}
>-		if (ceil < this.extra[0].length) {
>-			nullS1 += ",..."; //$NON-NLS-1$
>-			nullS2 += ",..."; //$NON-NLS-1$
>-			nullV1 += ",..."; //$NON-NLS-1$
>-			nullV2 += ",..."; //$NON-NLS-1$
>-		}
>-		return nullS1 + nullS2 + nullV1 + nullV2
>-			+ "]>"; //$NON-NLS-1$
>+		String nullS = "NullInfoRegistry<[" + this.nullBit1 //$NON-NLS-1$
>+			+ this.nullBit2 + this.nullBit3 + this.nullBit4;
>+			int i, ceil;
>+			for (i = 0, ceil = this.extra[0].length > 3 ? 
>+								3 : 
>+								this.extra[0].length;
>+				i < ceil; i++) {
>+				nullS += "," + this.extra[2][i] //$NON-NLS-1$
>+				 + this.extra[3][i] + this.extra[4][i] + this.extra[5][i];
>+			}
>+			if (ceil < this.extra[0].length) {
>+				nullS += ",..."; //$NON-NLS-1$
>+			}
>+			return nullS + "]>"; //$NON-NLS-1$
> 	}
> }
> }
>Index: compiler/org/eclipse/jdt/internal/compiler/ast/EqualExpression.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/EqualExpression.java,v
>retrieving revision 1.64
>diff -u -r1.64 EqualExpression.java
>--- compiler/org/eclipse/jdt/internal/compiler/ast/EqualExpression.java	28 Mar 2006 20:29:56 -0000	1.64
>+++ compiler/org/eclipse/jdt/internal/compiler/ast/EqualExpression.java	21 Apr 2006 14:13:19 -0000
>@@ -113,7 +113,8 @@
> 		}
> 		if (result instanceof UnconditionalFlowInfo && 
> 				(result.tagBits & FlowInfo.UNREACHABLE) == 0) { // the flow info is flat
>-			result = FlowInfo.conditional(result, result.copy());
>+			result = FlowInfo.conditional(result.copy(), result.copy());
>+			// TODO (maxime) check, reintroduced copy
> 		}
> 	 checkNullComparison(currentScope, flowContext, result, result.initsWhenTrue(), result.initsWhenFalse());
> 	 return result;
>Index: compiler/org/eclipse/jdt/internal/compiler/ast/InstanceOfExpression.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/InstanceOfExpression.java,v
>retrieving revision 1.48
>diff -u -r1.48 InstanceOfExpression.java
>--- compiler/org/eclipse/jdt/internal/compiler/ast/InstanceOfExpression.java	28 Mar 2006 20:29:56 -0000	1.48
>+++ compiler/org/eclipse/jdt/internal/compiler/ast/InstanceOfExpression.java	21 Apr 2006 14:13:19 -0000
>@@ -41,10 +41,10 @@
> 			this.expression, FlowContext.CAN_ONLY_NULL, flowInfo);
> 		flowInfo = expression.analyseCode(currentScope, flowContext, flowInfo).
> 			unconditionalInits();
>-		FlowInfo initsWhenFalse = flowInfo.copy();
>-		flowInfo.markAsComparedEqualToNonNull(local);
>+		FlowInfo initsWhenTrue = flowInfo.copy();
>+		initsWhenTrue.markAsComparedEqualToNonNull(local);
> 		// no impact upon enclosing try context
>-		return FlowInfo.conditional(flowInfo, initsWhenFalse);
>+		return FlowInfo.conditional(initsWhenTrue, flowInfo.copy());
> 	}
> 	return expression.analyseCode(currentScope, flowContext, flowInfo).
> 			unconditionalInits();
>Index: .settings/org.eclipse.jdt.core.prefs
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/.settings/org.eclipse.jdt.core.prefs,v
>retrieving revision 1.7
>diff -u -r1.7 org.eclipse.jdt.core.prefs
>--- .settings/org.eclipse.jdt.core.prefs	17 Feb 2006 16:06:06 -0000	1.7
>+++ .settings/org.eclipse.jdt.core.prefs	21 Apr 2006 14:13:19 -0000
>@@ -1,4 +1,4 @@
>-#Fri Feb 17 16:48:15 CET 2006
>+#Mon Mar 20 16:28:55 CET 2006
> eclipse.preferences.version=1
> org.eclipse.jdt.core.builder.cleanOutputFolder=clean
> org.eclipse.jdt.core.builder.duplicateResourceTask=warning
>#P org.eclipse.jdt.core.tests.compiler
>Index: .settings/org.eclipse.jdt.core.prefs
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.compiler/.settings/org.eclipse.jdt.core.prefs,v
>retrieving revision 1.10
>diff -u -r1.10 org.eclipse.jdt.core.prefs
>--- .settings/org.eclipse.jdt.core.prefs	30 Sep 2005 14:41:40 -0000	1.10
>+++ .settings/org.eclipse.jdt.core.prefs	21 Apr 2006 14:13:23 -0000
>@@ -1,4 +1,4 @@
>-#Fri Sep 30 16:39:41 CEST 2005
>+#Thu Feb 23 14:36:02 CET 2006
> eclipse.preferences.version=1
> org.eclipse.jdt.core.builder.cleanOutputFolder=clean
> org.eclipse.jdt.core.builder.duplicateResourceTask=warning
>@@ -66,5 +66,251 @@
> org.eclipse.jdt.core.compiler.problem.unusedPrivateMember=warning
> org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
> org.eclipse.jdt.core.compiler.source=1.3
>+org.eclipse.jdt.core.formatter.align_type_members_on_columns=false
>+org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression=16
>+org.eclipse.jdt.core.formatter.alignment_for_arguments_in_enum_constant=16
>+org.eclipse.jdt.core.formatter.alignment_for_arguments_in_explicit_constructor_call=16
>+org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation=16
>+org.eclipse.jdt.core.formatter.alignment_for_arguments_in_qualified_allocation_expression=16
>+org.eclipse.jdt.core.formatter.alignment_for_assignment=0
>+org.eclipse.jdt.core.formatter.alignment_for_binary_expression=16
>+org.eclipse.jdt.core.formatter.alignment_for_compact_if=16
>+org.eclipse.jdt.core.formatter.alignment_for_conditional_expression=80
>+org.eclipse.jdt.core.formatter.alignment_for_enum_constants=0
>+org.eclipse.jdt.core.formatter.alignment_for_expressions_in_array_initializer=16
>+org.eclipse.jdt.core.formatter.alignment_for_multiple_fields=16
>+org.eclipse.jdt.core.formatter.alignment_for_parameters_in_constructor_declaration=16
>+org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration=16
>+org.eclipse.jdt.core.formatter.alignment_for_selector_in_method_invocation=16
>+org.eclipse.jdt.core.formatter.alignment_for_superclass_in_type_declaration=16
>+org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_enum_declaration=16
>+org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_type_declaration=16
>+org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_constructor_declaration=16
>+org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration=16
>+org.eclipse.jdt.core.formatter.blank_lines_after_imports=1
>+org.eclipse.jdt.core.formatter.blank_lines_after_package=1
>+org.eclipse.jdt.core.formatter.blank_lines_before_field=1
>+org.eclipse.jdt.core.formatter.blank_lines_before_first_class_body_declaration=0
>+org.eclipse.jdt.core.formatter.blank_lines_before_imports=1
>+org.eclipse.jdt.core.formatter.blank_lines_before_member_type=1
>+org.eclipse.jdt.core.formatter.blank_lines_before_method=1
>+org.eclipse.jdt.core.formatter.blank_lines_before_new_chunk=1
>+org.eclipse.jdt.core.formatter.blank_lines_before_package=0
>+org.eclipse.jdt.core.formatter.blank_lines_between_type_declarations=1
>+org.eclipse.jdt.core.formatter.brace_position_for_annotation_type_declaration=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_anonymous_type_declaration=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_array_initializer=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_block=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_block_in_case=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_constructor_declaration=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_enum_constant=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_enum_declaration=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_method_declaration=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_switch=end_of_line
>+org.eclipse.jdt.core.formatter.brace_position_for_type_declaration=end_of_line
>+org.eclipse.jdt.core.formatter.comment.clear_blank_lines=false
>+org.eclipse.jdt.core.formatter.comment.format_comments=true
>+org.eclipse.jdt.core.formatter.comment.format_header=false
>+org.eclipse.jdt.core.formatter.comment.format_html=true
>+org.eclipse.jdt.core.formatter.comment.format_source_code=true
>+org.eclipse.jdt.core.formatter.comment.indent_parameter_description=true
>+org.eclipse.jdt.core.formatter.comment.indent_root_tags=true
>+org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags=insert
>+org.eclipse.jdt.core.formatter.comment.insert_new_line_for_parameter=insert
>+org.eclipse.jdt.core.formatter.comment.line_length=80
>+org.eclipse.jdt.core.formatter.compact_else_if=true
>+org.eclipse.jdt.core.formatter.continuation_indentation=2
>+org.eclipse.jdt.core.formatter.continuation_indentation_for_array_initializer=2
>+org.eclipse.jdt.core.formatter.format_guardian_clause_on_one_line=false
>+org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_annotation_declaration_header=true
>+org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header=true
>+org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_declaration_header=true
>+org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_type_header=true
>+org.eclipse.jdt.core.formatter.indent_breaks_compare_to_cases=true
>+org.eclipse.jdt.core.formatter.indent_empty_lines=false
>+org.eclipse.jdt.core.formatter.indent_statements_compare_to_block=true
>+org.eclipse.jdt.core.formatter.indent_statements_compare_to_body=true
>+org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_cases=true
>+org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_switch=false
>+org.eclipse.jdt.core.formatter.indentation.size=4
>+org.eclipse.jdt.core.formatter.insert_new_line_after_annotation=insert
>+org.eclipse.jdt.core.formatter.insert_new_line_after_opening_brace_in_array_initializer=do not insert
>+org.eclipse.jdt.core.formatter.insert_new_line_at_end_of_file_if_missing=do not insert
>+org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement=do not insert
>+org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer=do not insert
>+org.eclipse.jdt.core.formatter.insert_new_line_before_else_in_if_statement=do not insert
>+org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement=do not insert
>+org.eclipse.jdt.core.formatter.insert_new_line_before_while_in_do_statement=do not insert
>+org.eclipse.jdt.core.formatter.insert_new_line_in_empty_annotation_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_new_line_in_empty_anonymous_type_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_new_line_in_empty_block=insert
>+org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_constant=insert
>+org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_new_line_in_empty_method_body=insert
>+org.eclipse.jdt.core.formatter.insert_new_line_in_empty_type_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_and_in_type_parameter=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_assignment_operator=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation_type_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_binary_operator=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_arguments=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_parameters=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_closing_brace_in_block=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_closing_paren_in_cast=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_colon_in_assert=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_colon_in_case=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_colon_in_conditional=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_colon_in_for=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_colon_in_labeled_statement=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_allocation_expression=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_annotation=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_array_initializer=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_parameters=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_throws=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_constant_arguments=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_explicitconstructorcall_arguments=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_increments=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_inits=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_parameters=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_throws=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_local_declarations=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_superinterfaces=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_ellipsis=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_parameterized_type_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_arguments=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_parameters=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_brace_in_array_initializer=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_allocation_expression=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_cast=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_catch=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_constructor_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_enum_constant=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_for=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_if=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_invocation=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_parenthesized_expression=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_switch=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_synchronized=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_while=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_question_in_conditional=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_question_in_wildcard=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for=insert
>+org.eclipse.jdt.core.formatter.insert_space_after_unary_operator=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_and_in_type_parameter=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_assignment_operator=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_at_in_annotation_type_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_binary_operator=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_parameterized_type_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_brace_in_array_initializer=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_allocation_expression=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_cast=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_catch=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_constructor_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_for=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_if=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_invocation=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_parenthesized_expression=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_switch=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_synchronized=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_while=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_colon_in_conditional=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_colon_in_default=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_colon_in_for=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_colon_in_labeled_statement=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_allocation_expression=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_annotation=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_array_initializer=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_parameters=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_throws=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_constant_arguments=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_declarations=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_inits=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_parameters=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_throws=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_invocation_arguments=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_parameterized_type_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_arguments=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_ellipsis=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_anonymous_type_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_block=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_constant=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_switch=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_type_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation_type_member_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_constructor_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_enum_constant=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_if=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_invocation=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_parenthesized_expression=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_while=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_return=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional=insert
>+org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_semicolon=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_before_unary_operator=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_between_empty_brackets_in_array_allocation_expression=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_constructor_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration=do not insert
>+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation=do not insert
>+org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line=false
>+org.eclipse.jdt.core.formatter.keep_empty_array_initializer_on_one_line=false
>+org.eclipse.jdt.core.formatter.keep_imple_if_on_one_line=false
>+org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line=false
>+org.eclipse.jdt.core.formatter.lineSplit=80
>+org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body=0
>+org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve=1
>+org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line=true
>+org.eclipse.jdt.core.formatter.tabulation.char=tab
>+org.eclipse.jdt.core.formatter.tabulation.size=4
>+org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations=false
> org.eclipse.jdt.core.incompatibleJDKLevel=ignore
> org.eclipse.jdt.core.incompleteClasspath=error
>Index: src/org/eclipse/jdt/core/tests/compiler/regression/AbstractRegressionTest.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/AbstractRegressionTest.java,v
>retrieving revision 1.60
>diff -u -r1.60 AbstractRegressionTest.java
>--- src/org/eclipse/jdt/core/tests/compiler/regression/AbstractRegressionTest.java	7 Apr 2006 09:03:47 -0000	1.60
>+++ src/org/eclipse/jdt/core/tests/compiler/regression/AbstractRegressionTest.java	21 Apr 2006 14:13:23 -0000
>@@ -832,7 +832,8 @@
> 					 // start with the current directory which contains the source files
> 					Process compileProcess = Runtime.getRuntime().exec(
> 						cmdLineHeader.toString() + " -version", null, null);
>-	 Logger versionLogger = new Logger(compileProcess.getErrorStream(), ""); // WORK 
>+	 Logger versionLogger = new Logger(compileProcess.getErrorStream(), "");
>+	 // PREMATURE implement consistent error policy
> 	 versionLogger.start();
> 	 compileProcess.waitFor();
> 					versionLogger.join(); // make sure we get the whole output
>@@ -1148,8 +1149,9 @@
> 						javaCmdLine.append(' ').append(testFiles[0].substring(0, testFiles[0].indexOf('.')));
> 							// assume executable class is name of first test file - PREMATURE check if this is also the case in other test fwk classes
> 						execProcess = Runtime.getRuntime().exec(javaCmdLine.toString(), null, this.outputTestDirectoryPath.toFile());
>-						Logger logger = new Logger(execProcess.getInputStream(), ""); // WORK
>-						logger.start();
>+						Logger logger = new Logger(execProcess.getInputStream(), "");
>+						// PREMATURE implement consistent error policy
>+	 				logger.start();
> 						exitValue = execProcess.waitFor();
> 						logger.join(); // make sure we get the whole output
> 						String javaOutput = logger.buffer.toString().trim();
>Index: src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceTest.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceTest.java,v
>retrieving revision 1.33
>diff -u -r1.33 NullReferenceTest.java
>--- src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceTest.java	6 Apr 2006 08:38:51 -0000	1.33
>+++ src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceTest.java	21 Apr 2006 14:13:24 -0000
>@@ -11,16 +11,11 @@
> package org.eclipse.jdt.core.tests.compiler.regression;
> 
> import java.util.Map;
>-
>-import org.eclipse.jdt.internal.compiler.flow.FlowInfo;
>-import org.eclipse.jdt.internal.compiler.flow.UnconditionalFlowInfo;
>-import org.eclipse.jdt.internal.compiler.flow.UnconditionalFlowInfo.AssertionFailedException;
> import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
>-import org.eclipse.jdt.internal.compiler.lookup.LocalVariableBinding;
>-
>-import junit.framework.AssertionFailedError;
> import junit.framework.Test;
> 
>+/* See also NullReferenceImplTests for low level, implementation dependent 
>+ * tests. */
> public class NullReferenceTest extends AbstractRegressionTest {
> 
> public NullReferenceTest(String name) { 
>@@ -1730,15 +1725,6 @@
> }
> 
> // null analysis - if/else
>-// PMT: exactly the case we talked about; what happens is that the first
>-// if shade doubts upon o; what we could do is to avoid marking in case
>-// of error? not sure this is appropriate though, because of inner code
>-// into the if itself; I believe I somewhat did that on purpose: the latest
>-// wins; completed with o.toString()...
>-// basically, the choice is about what we should do in case of error:
>-// neglect the effect of the error, or propagate this effect; the second
>-// tends to produce less repeated errors (I believe) than the first...
>-// PREMATURE could refine adding a null-dependent reachable mark... not urgent
> public void test0312_if_else() {
> 	this.runNegativeTest(
> 		new String[] {
>@@ -1748,8 +1734,8 @@
> 			" void foo() {\n" + 
> 			" Object o = new Object();\n" + 
> 			" if (o == null) { /* */ }\n" + // complain 
>-			" if (o != null) { /* */ }\n" + // quiet
>-			" o.toString();\n" + // complain
>+			" if (o != null) { /* */ }\n" +
>+			" o.toString();\n" +
> 			" }\n" + 
> 			"}\n"},
> 		"----------\n" + 
>@@ -2376,6 +2362,100 @@
> 		"");
> }
> 
>+// null analysis - if/else nested with unknown protection: unknown cannot protect
>+public void test0339_if_else_nested() {
>+	this.runNegativeTest(
>+		new String[] {
>+			"X.java",
>+			"public class X {\n" + 
>+			" void foo(Object o, boolean b) {\n" + 
>+			" if (o == null || b) {\n" + 
>+			" if (bar() == o) {\n" + 
>+			" o.toString();\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" Object bar() {\n" + 
>+			" return new Object();\n" + 
>+			" }\n" + 
>+			"}"},
>+		"----------\n" + 
>+		"1. ERROR in X.java (at line 5)\n" + 
>+		"	o.toString();\n" + 
>+		"	^\n" + 
>+		"The variable o may be null\n" + 
>+		"----------\n");
>+}
>+
>+// null analysis - if/else nested
>+public void test0340_if_else_nested() {
>+	this.runNegativeTest(
>+		new String[] {
>+			"X.java",
>+			"public class X {\n" + 
>+			" void foo(Object o) {\n" + 
>+			" if (o == null) {\n" + 
>+			" if (bar() == o) {\n" + 
>+			" o.toString();\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" Object bar() {\n" + 
>+			" return new Object();\n" + 
>+			" }\n" + 
>+			"}"},
>+		"----------\n" + 
>+		"1. ERROR in X.java (at line 5)\n" + 
>+		"	o.toString();\n" + 
>+		"	^\n" + 
>+		"The variable o can only be null; it was either set to null or checked for null when last used\n" + 
>+		"----------\n");
>+}
>+
>+// null analysis - if/else nested
>+public void test0341_if_else_nested() {
>+	this.runNegativeTest(
>+		new String[] {
>+			"X.java",
>+			"public class X {\n" + 
>+			" void foo(Object o1, Object o2, boolean b) {\n" + 
>+			" if (o1 == null || b) {\n" + 
>+			" if (o1 == o2) {\n" + 
>+			" o1.toString();\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			"}"},
>+		"----------\n" + 
>+		"1. ERROR in X.java (at line 5)\n" + 
>+		"	o1.toString();\n" + 
>+		"	^^\n" + 
>+		"The variable o1 may be null\n" + 
>+		"----------\n");
>+}
>+
>+// null analysis - if/else nested
>+public void test0342_if_else_nested() {
>+	this.runNegativeTest(
>+		new String[] {
>+			"X.java",
>+			"public class X {\n" + 
>+			" void foo(Object o1, Object o2, boolean b) {\n" + 
>+			" if (o1 == null || b) {\n" + 
>+			" if (o2 == o1) {\n" + 
>+			" o1.toString();\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			"}"},
>+		"----------\n" + 
>+		"1. ERROR in X.java (at line 5)\n" + 
>+		"	o1.toString();\n" + 
>+		"	^^\n" + 
>+		"The variable o1 may be null\n" + 
>+		"----------\n");
>+}
>+
> // null analysis -- while
> public void test0401_while() {
> 	this.runNegativeTest(
>@@ -3511,7 +3591,8 @@
> 
> // null analysis - while
> // TODO (maxime) https://bugs.eclipse.org/bugs/show_bug.cgi?id=133131
>-public void _test0451_while_nested() {
>+// fixed along 127570, do the reporting
>+public void test0451_while_nested() {
> 	this.runNegativeTest(
> 		new String[] {
> 			"X.java",
>@@ -3526,7 +3607,12 @@
> 			" if (o != null) { /* */ }\n" + 
> 			" }\n" + 
> 			"}"},
>-		"ERR");
>+		"----------\n" + 
>+		"1. ERROR in X.java (at line 9)\n" + 
>+		"	if (o != null) { /* */ }\n" + 
>+		"	 ^\n" + 
>+		"The variable o cannot be null; it was either set to a non-null value or assumed to be non-null when last used\n" + 
>+		"----------\n");
> } 
> 
> // TODO (maxime) https://bugs.eclipse.org/bugs/show_bug.cgi?id=123399
>@@ -5357,9 +5443,10 @@
> }
> 
> // null analysis -- for
>-// contrast this with #311
>+// changed with https://bugs.eclipse.org/bugs/show_bug.cgi?id=127570
>+// we are now able to see that x2 is reinitialized with x1, which is unknown
> public void test0726_for() {
>-	this.runNegativeTest(
>+	this.runConformTest(
> 		new String[] {
> 			"X.java",
> 			"public class X {\n" + 
>@@ -5373,12 +5460,7 @@
> 			" }\n" + 
> 			" }\n" + 
> 			"}\n"},
>-		"----------\n" + 
>-		"1. ERROR in X.java (at line 8)\n" + 
>-		"	x2.toString();\n" + 
>-		"	^^\n" + 
>-		"The variable x2 may be null\n" + 
>-		"----------\n");
>+		"");
> }
> 
> // null analysis -- for
>@@ -5587,6 +5669,89 @@
> 	}
> }
> 
>+// null analysis - for
>+// https://bugs.eclipse.org/bugs/show_bug.cgi?id=127570
>+public void test0736_for_embedded_lazy_init() {
>+	this.runConformTest(
>+		new String[] {
>+			"X.java",
>+			"class X {\n" + 
>+			" public boolean foo() {\n" + 
>+			" Boolean b = null;\n" + 
>+			" for (int i = 0; i < 1; i++) {\n" + 
>+			" if (b == null) {\n" + 
>+			" b = Boolean.TRUE;\n" + 
>+			" }\n" + 
>+			" if (b.booleanValue()) {\n" + // quiet
>+			" return b.booleanValue();\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" return false;\n" + 
>+			" }\n" + 
>+			"}"},
>+		"");
>+}
>+
>+// null analysis - for with unknown protection: unknown cannot protect anything
>+// suggested by https://bugs.eclipse.org/bugs/show_bug.cgi?id=127570
>+public void test0737_for_unknown_protection() {
>+	this.runNegativeTest(
>+		new String[] {
>+			"X.java",
>+			"class X {\n" + 
>+			" public boolean foo(Boolean p) {\n" + 
>+			" Boolean b = null;\n" + 
>+			" for (int i = 0; i < 1; i++) {\n" + 
>+			" if (b == p) {\n" + // tells us that p is null as well
>+			" // empty\n" + 
>+			" }\n" +
>+			" else {\n" +
>+			" continue;\n" +
>+			" }\n" + 
>+			" if (b.booleanValue()) {\n" + // complain b can only be null
>+			" return b.booleanValue();\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" return false;\n" + 
>+			" }\n" + 
>+			"}"},
>+		"----------\n" + 
>+		"1. ERROR in X.java (at line 11)\n" + 
>+		"	if (b.booleanValue()) {\n" + 
>+		"	 ^\n" + 
>+		"The variable b can only be null; it was either set to null or checked for null when last used\n" + 
>+		"----------\n");
>+}
>+
>+// null analysis - for with unknown protection
>+// suggested by https://bugs.eclipse.org/bugs/show_bug.cgi?id=127570
>+// the issue is that we cannot do less than full aliasing analysis to
>+// catch this one
>+// TODO (maxime) reconsider when/if we bring full aliasing in
>+public void _test0738_for_unknown_protection() {
>+	this.runConformTest(
>+		new String[] {
>+			"X.java",
>+			"class X {\n" + 
>+			" public boolean foo(Boolean p) {\n" + 
>+			" Boolean b = null;\n" + 
>+			" for (int i = 0; i < 1; i++) {\n" + 
>+			" if (b == p) {\n" + 
>+			" // empty\n" + 
>+			" }\n" +
>+			" else {\n" +
>+			" b = p;\n" +
>+			" }\n" + 
>+			" if (b.booleanValue()) {\n" + // quiet because b is an alias for p, unknown
>+			" return b.booleanValue();\n" + 
>+			" }\n" + 
>+			" }\n" + 
>+			" return false;\n" + 
>+			" }\n" + 
>+			"}"},
>+		"");
>+}
>+
> // null analysis -- switch
> public void test0800_switch() {
> 	this.runConformTest(
>@@ -7035,6 +7200,109 @@
> 		"----------\n");
> }
> 
>+// encoding validation
>+public void test1500() {
>+	this.runConformTest(
>+		new String[] {
>+			"X.java",
>+			"public class X {\n" + 
>+			" void foo(Object o, int i, boolean b, Object u) {\n" +
>+			" o.toString();\n" + 
>+			" switch (i) {\n" + 
>+			" case 0:\n" +
>+			" if (b) {\n" +
>+			" o = u;\n" +
>+			" } else {\n" +
>+			" o = new Object();\n" +
>+			" }\n" +
>+			" break;\n" + 
>+			" }\n" +
>+			" if (o == null) { /* empty */ }\n" + 
>+			" }\n" + 
>+			"}\n"},
>+		"");
>+}
>+
>+// encoding validation
>+public void test1501() {
>+	this.runConformTest(
>+		new String[] {
>+			"X.java",
>+			"public class X {\n" + 
>+			" void foo(Object o, int i, boolean b, Object u) {\n" +
>+			" if (b) {\n" +
>+			" o = new Object();\n" +
>+			" }\n" + 
>+			" o.toString();\n" + 
>+			" switch (i) {\n" + 
>+			" case 0:\n" +
>+			" if (b) {\n" +
>+			" o = u;\n" +
>+			" } else {\n" +
>+			" o = new Object();\n" +
>+			" }\n" +
>+			" break;\n" + 
>+			" }\n" +
>+			" if (o == null) { /* empty */ }\n" + 
>+			" }\n" + 
>+			"}\n"},
>+		"");
>+}
>+
>+// encoding validation
>+public void test1502() {
>+	this.runConformTest(
>+		new String[] {
>+			"X.java",
>+			"public class X {\n" + 
>+			" void foo(Object o, int i, boolean b, Object u) {\n" +
>+			" if (b) {\n" +
>+			" o = u;\n" +
>+			" }\n" + 
>+			" o.toString();\n" + 
>+			" switch (i) {\n" + 
>+			" case 0:\n" +
>+			" if (b) {\n" +
>+			" o = u;\n" +
>+			" } else {\n" +
>+			" o = new Object();\n" +
>+			" }\n" +
>+			" break;\n" + 
>+			" }\n" +
>+			" if (o == null) { /* empty */ }\n" + 
>+			" }\n" + 
>+			"}\n"},
>+		"");
>+}
>+
>+// encoding validation
>+public void test1503() {
>+	this.runConformTest(
>+		new String[] {
>+			"X.java",
>+			"public class X {\n" + 
>+			" void foo(Object o, int i, boolean b, Object u) {\n" +
>+			" if (b) {\n" +
>+			" o = u;\n" +
>+			" } else {\n" +
>+			" o = new Object();\n" +
>+			" }\n" + 
>+			" o.toString();\n" + 
>+			" switch (i) {\n" + 
>+			" case 0:\n" +
>+			" if (b) {\n" +
>+			" o = u;\n" +
>+			" } else {\n" +
>+			" o = new Object();\n" +
>+			" }\n" +
>+			" break;\n" + 
>+			" }\n" +
>+			" if (o == null) { /* empty */ }\n" + 
>+			" }\n" + 
>+			"}\n"},
>+		"");
>+}
>+
> // flow info low-level validation
> public void test2000_flow_info() {
> 	this.runNegativeTest(
>@@ -7058,7 +7326,7 @@
> 			" o60 = o0, o61 = o0, o62 = o0, o63 = o0, o64 = o0,\n" + 
> 			" o65 = o0, o66 = o0, o67 = o0, o68 = o0, o69 = o0;\n" + 
> 			" if (o65 == null) { /* */ }\n" + // complain 
>-			" if (o65 != null) { /* */ }\n" + // quiet (already reported)
>+			" if (o65 != null) { /* */ }\n" +
> 			" }\n" + 
> 			"}\n"},
> 		"----------\n" + 
>@@ -7782,2197 +8050,4 @@
> 		"The variable o1 may be null\n" + 
> 		"----------\n");
> }
>-
>-// Technical tests -- only available with patched sources
>-static final boolean 
>-	printTablesAsNames = false, 
>-	printTablesAsCodes = false, 
>-	printTruthMaps = false;
>-static final int
>-	combinationTestsloopsNb = 1; // define to 10000s to measure performances
>-
>-
>-public void test2050_markAsComparedEqualToNonNull() {
>-	long [][][] testData = {
>-		{{0,0,0,0},{1,1,0,0}},
>-		{{0,0,0,1},{1,1,0,1}},
>-		{{0,0,1,0},{1,1,0,0}},
>-		{{0,0,1,1},{1,1,0,1}},
>-		{{0,1,0,0},{1,1,0,0}},
>-		{{0,1,0,1},{1,1,0,1}},
>-		{{0,1,1,0},{1,1,0,0}},
>-		{{0,1,1,1},{1,1,0,1}},
>-		{{1,0,0,0},{1,1,0,0}},
>-		{{1,0,0,1},{1,0,0,1}},
>-		{{1,0,1,0},{1,1,0,0}},
>-		{{1,0,1,1},{1,1,0,1}},
>-		{{1,1,0,0},{1,1,0,0}},
>-		{{1,1,0,1},{1,1,0,1}},
>-		{{1,1,1,0},{1,1,0,0}},
>-		{{1,1,1,1},{1,1,0,1}},
>-	};
>-	int failures = 0;
>-	LocalVariableBinding local = new TestLocalVariableBinding(0);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0]);
>-		result.markAsComparedEqualToNonNull(local);
>-		if (!(result.testEquals(UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1])))) {
>-			if (failures == 0) {
>-				System.out.println("markAsComparedEqualToNonNull failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-	}
>-	local = new TestLocalVariableBinding(64);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0], 64),
>-			expected = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1], 64);
>-		result.markAsComparedEqualToNonNull(local);
>-		if (!(result.testEquals(expected))) {
>-			if (failures == 0) {
>-				System.out.println("markAsComparedEqualToNonNull failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // (64) instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-		if (testData[i][0][0] == 0 &&
>-				testData[i][0][1] == 0 &&
>-				testData[i][0][2] == 0 &&				
>-				testData[i][0][3] == 0) {
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1]);
>-			result.markAsComparedEqualToNonNull(local);
>-			if (!result.testEquals(expected, 64)) {
>-				if (failures == 0) {
>-					System.out.println("markAsComparedEqualToNonNull failures: ");
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-						',' + result.testString() + 
>-						"}, // (zero 64) instead of: " + testStringValueOf(testData[i][1]));
>-			}
>-		}
>-	}
>-	local = new TestLocalVariableBinding(128);
>-	for (int i = 0; i < testData.length; i++) {
>-		if (testData[i][0][0] == 0 &&
>-				testData[i][0][1] == 0 &&
>-				testData[i][0][2] == 0 &&				
>-				testData[i][0][3] == 0) {
>-			UnconditionalFlowInfoTestHarness 
>-				result = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][1], 64),
>-				expected = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][1], 128);
>-			result.markAsComparedEqualToNonNull(local);
>-			if (!result.testEquals(expected, 128)) {
>-				if (failures == 0) {
>-					System.out.println("markAsComparedEqualToNonNull failures: ");
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-						',' + result.testString() + 
>-						"}, // (zero 128) instead of: " + testStringValueOf(testData[i][1]));
>-			}
>-		}
>-	}
>-	if (printTablesAsNames) {
>-		System.out.println("RECAP TABLE FOR MARK COMPARED NON NULL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testSymbolicValueOf(testData[i][0]) + " -> " +
>-				testSymbolicValueOf(testData[i][1]));
>-		}	
>-	}
>-	if (printTablesAsCodes) {
>-		System.out.println("RECAP TABLE FOR MARK COMPARED NON NULL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testCodedValueOf(testData[i][0]) + " " +
>-				testCodedValueOf(testData[i][1]));
>-		}
>-	}
>-	assertTrue("nb of failures: " + failures, failures == 0);
>-}
>-
>-public void test2051_markAsComparedEqualToNull() {
>-	long [][][] testData = {
>-		{{0,0,0,0},{0,1,0,0}},
>-		{{0,0,0,1},{0,1,0,0}},
>-		{{0,0,1,0},{0,1,1,0}},
>-		{{0,0,1,1},{0,1,1,0}},
>-		{{0,1,0,0},{0,1,0,0}},
>-		{{0,1,0,1},{0,1,0,0}},
>-		{{0,1,1,0},{0,1,1,0}},
>-		{{0,1,1,1},{0,1,1,0}},
>-		{{1,0,0,0},{0,1,0,0}},
>-		{{1,0,0,1},{0,1,0,0}},
>-		{{1,0,1,0},{1,0,1,0}},
>-		{{1,0,1,1},{0,1,0,0}},
>-		{{1,1,0,0},{0,1,0,0}},
>-		{{1,1,0,1},{0,1,0,0}},
>-		{{1,1,1,0},{0,1,1,0}},
>-		{{1,1,1,1},{0,1,1,0}},
>-	};
>-	int failures = 0;
>-	LocalVariableBinding local = new TestLocalVariableBinding(0);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0]);
>-		result.markAsComparedEqualToNull(local);
>-		if (!(result.testEquals(UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1])))) {
>-			if (failures == 0) {
>-				System.out.println("markAsComparedEqualToNull failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-	}
>-	local = new TestLocalVariableBinding(64);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0], 64),
>-			expected = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1], 64);
>-		result.markAsComparedEqualToNull(local);
>-		if (!(result.testEquals(expected))) {
>-			if (failures == 0) {
>-				System.out.println("markAsComparedEqualToNull failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // (64) instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-		if (testData[i][0][0] == 0 &&
>-				testData[i][0][1] == 0 &&
>-				testData[i][0][2] == 0 &&				
>-				testData[i][0][3] == 0) {
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1]);
>-			result.markAsComparedEqualToNull(local);
>-			if (!result.testEquals(expected, 64)) {
>-				if (failures == 0) {
>-					System.out.println("markAsComparedEqualToNull failures: ");
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-						',' + result.testString() + 
>-						"}, // (zero 64) instead of: " + testStringValueOf(testData[i][1]));
>-			}
>-		}		
>-	}
>-	local = new TestLocalVariableBinding(128);
>-	for (int i = 0; i < testData.length; i++) {
>-		if (testData[i][0][0] == 0 &&
>-				testData[i][0][1] == 0 &&
>-				testData[i][0][2] == 0 &&				
>-				testData[i][0][3] == 0) {
>-			UnconditionalFlowInfoTestHarness 
>-				result = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][1], 64),
>-				expected = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][1], 128);
>-			result.markAsComparedEqualToNull(local);
>-			if (!result.testEquals(expected, 128)) {
>-				if (failures == 0) {
>-					System.out.println("markAsComparedEqualToNull failures: ");
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-						',' + result.testString() + 
>-						"}, // (zero 128) instead of: " + testStringValueOf(testData[i][1]));
>-			}
>-		}
>-	}	
>-	if (printTablesAsNames) {
>-		System.out.println("RECAP TABLE FOR MARK COMPARED NULL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testSymbolicValueOf(testData[i][0]) + " -> " +
>-				testSymbolicValueOf(testData[i][1]));
>-		}	
>-	}
>-	if (printTablesAsCodes) {
>-		System.out.println("RECAP TABLE FOR MARK COMPARED NULL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testCodedValueOf(testData[i][0]) + " " +
>-				testCodedValueOf(testData[i][1]));
>-		}
>-	}
>-	assertTrue("nb of failures: " + failures, failures == 0);
>-}
>-
>-public void test2052_markAsDefinitelyNonNull() {
>-	long [][][] testData = {
>-		{{0,0,0,0},{1,0,0,1}},
>-		{{0,0,0,1},{1,0,0,1}},
>-		{{0,0,1,0},{1,0,0,1}},
>-		{{0,0,1,1},{1,0,0,1}},
>-		{{0,1,0,0},{1,0,0,1}},
>-		{{0,1,0,1},{1,0,0,1}},
>-		{{0,1,1,0},{1,0,0,1}},
>-		{{0,1,1,1},{1,0,0,1}},
>-		{{1,0,0,0},{1,0,0,1}},
>-		{{1,0,0,1},{1,0,0,1}},
>-		{{1,0,1,0},{1,0,0,1}},
>-		{{1,0,1,1},{1,0,0,1}},
>-		{{1,1,0,0},{1,0,0,1}},
>-		{{1,1,0,1},{1,0,0,1}},
>-		{{1,1,1,0},{1,0,0,1}},
>-		{{1,1,1,1},{1,0,0,1}},
>-	};
>-	int failures = 0;
>-	LocalVariableBinding local = new TestLocalVariableBinding(0);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0]);
>-		result.markAsDefinitelyNonNull(local);
>-		if (!(result.testEquals(UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1])))) {
>-			if (failures == 0) {
>-				System.out.println("markAsDefinitelyNonNull failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-	}
>-	local = new TestLocalVariableBinding(64);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0], 64);
>-		result.markAsDefinitelyNonNull(local);
>-		if (!(result.testEquals(UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1], 64)))) {
>-			if (failures == 0) {
>-				System.out.println("markAsDefinitelyNonNull failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // (64) instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-	}
>-	if (printTablesAsNames) {
>-		System.out.println("RECAP TABLE FOR MARK DEFINITELY NON NULL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testSymbolicValueOf(testData[i][0]) + " -> " +
>-				testSymbolicValueOf(testData[i][1]));
>-		}	
>-	}
>-	if (printTablesAsCodes) {
>-		System.out.println("RECAP TABLE FOR MARK DEFINITELY NON NULL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testCodedValueOf(testData[i][0]) + " " +
>-				testCodedValueOf(testData[i][1]));
>-		}
>-	}
>-	assertTrue("nb of failures: " + failures, failures == 0);
>-}
>-
>-public void test2053_markAsDefinitelyNull() {
>-	long [][][] testData = {
>-		{{0,0,0,0},{1,0,1,0}},
>-		{{0,0,0,1},{1,0,1,0}},
>-		{{0,0,1,0},{1,0,1,0}},
>-		{{0,0,1,1},{1,0,1,0}},
>-		{{0,1,0,0},{1,0,1,0}},
>-		{{0,1,0,1},{1,0,1,0}},
>-		{{0,1,1,0},{1,0,1,0}},
>-		{{0,1,1,1},{1,0,1,0}},
>-		{{1,0,0,0},{1,0,1,0}},
>-		{{1,0,0,1},{1,0,1,0}},
>-		{{1,0,1,0},{1,0,1,0}},
>-		{{1,0,1,1},{1,0,1,0}},
>-		{{1,1,0,0},{1,0,1,0}},
>-		{{1,1,0,1},{1,0,1,0}},
>-		{{1,1,1,0},{1,0,1,0}},
>-		{{1,1,1,1},{1,0,1,0}},
>-	};
>-	int failures = 0;
>-	LocalVariableBinding local = new TestLocalVariableBinding(0);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0]);
>-		result.markAsDefinitelyNull(local);
>-		if (!(result.testEquals(UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1])))) {
>-			if (failures == 0) {
>-				System.out.println("markAsDefinitelyNull failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-	}
>-	local = new TestLocalVariableBinding(64);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0], 64);
>-		result.markAsDefinitelyNull(local);
>-		if (!(result.testEquals(UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1], 64)))) {
>-			if (failures == 0) {
>-				System.out.println("markAsDefinitelyNull failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // (64) instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-	}
>-	if (printTablesAsNames) {
>-		System.out.println("RECAP TABLE FOR MARK DEFINITELY NULL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testSymbolicValueOf(testData[i][0]) + " -> " +
>-				testSymbolicValueOf(testData[i][1]));
>-		}	
>-	}
>-	if (printTablesAsCodes) {
>-		System.out.println("RECAP TABLE FOR MARK DEFINITELY NULL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testCodedValueOf(testData[i][0]) + " " +
>-				testCodedValueOf(testData[i][1]));
>-		}
>-	}
>-	assertTrue("nb of failures: " + failures, failures == 0);
>-}
>-
>-public void test2054_markAsDefinitelyUnknown() {
>-	long [][][] testData = {
>-		{{0,0,0,0},{1,0,1,1}},
>-		{{0,0,0,1},{1,0,1,1}},
>-		{{0,0,1,0},{1,0,1,1}},
>-		{{0,0,1,1},{1,0,1,1}},
>-		{{0,1,0,0},{1,0,1,1}},
>-		{{0,1,0,1},{1,0,1,1}},
>-		{{0,1,1,0},{1,0,1,1}},
>-		{{0,1,1,1},{1,0,1,1}},
>-		{{1,0,0,0},{1,0,1,1}},
>-		{{1,0,0,1},{1,0,1,1}},
>-		{{1,0,1,0},{1,0,1,1}},
>-		{{1,0,1,1},{1,0,1,1}},
>-		{{1,1,0,0},{1,0,1,1}},
>-		{{1,1,0,1},{1,0,1,1}},
>-		{{1,1,1,0},{1,0,1,1}},
>-		{{1,1,1,1},{1,0,1,1}},
>-	};
>-	int failures = 0;
>-	LocalVariableBinding local = new TestLocalVariableBinding(0);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0]);
>-		result.markAsDefinitelyUnknown(local);
>-		if (!(result.testEquals(UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1])))) {
>-			if (failures == 0) {
>-				System.out.println("markAsDefinitelyUnknown failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-	}
>-	local = new TestLocalVariableBinding(64);
>-	for (int i = 0; i < testData.length; i++) {
>-		UnconditionalFlowInfoTestHarness 
>-			result = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0], 64);
>-		result.markAsDefinitelyUnknown(local);
>-		if (!(result.testEquals(UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1], 64)))) {
>-			if (failures == 0) {
>-				System.out.println("markAsDefinitelyUnknown failures: ");
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + result.testString() + 
>-				"}, // (64) instead of: " + testStringValueOf(testData[i][1]));
>-		}
>-	}
>-	if (printTablesAsNames) {
>-		System.out.println("RECAP TABLE FOR MARK DEFINITELY UNKNOWN");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testSymbolicValueOf(testData[i][0]) + " -> " +
>-				testSymbolicValueOf(testData[i][1]));
>-		}	
>-	}
>-	if (printTablesAsCodes) {
>-		System.out.println("RECAP TABLE FOR MARK DEFINITELY UNKNOWN");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testCodedValueOf(testData[i][0]) + " " +
>-				testCodedValueOf(testData[i][1]));
>-		}
>-	}
>-	assertTrue("nb of failures: " + failures, failures == 0);
>-}
>-
>-public void test2055_addInitializationsFrom() {
>-	long [][][] testData = {
>-		{{0,0,0,0},{0,0,0,0},{0,0,0,0}},
>-		{{0,0,0,0},{0,0,0,1},{0,0,0,1}},
>-		{{0,0,0,0},{0,0,1,0},{0,0,1,0}},
>-		{{0,0,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,0,0},{0,1,0,0},{0,1,0,0}},
>-		{{0,0,0,0},{0,1,1,0},{0,1,1,0}},
>-		{{0,0,0,0},{1,0,0,1},{1,0,0,1}},
>-		{{0,0,0,0},{1,0,1,0},{1,0,1,0}},
>-		{{0,0,0,0},{1,0,1,1},{1,0,1,1}},
>-		{{0,0,0,0},{1,1,0,0},{1,1,0,0}},
>-		{{0,0,0,0},{1,1,0,1},{1,1,0,1}},
>-		{{0,0,0,1},{0,0,0,0},{0,0,0,1}},
>-		{{0,0,0,1},{0,0,0,1},{0,0,0,1}},
>-		{{0,0,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{0,0,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,0,1},{0,1,0,0},{0,1,0,0}},
>-		{{0,0,0,1},{0,1,1,0},{0,1,0,0}},
>-		{{0,0,0,1},{1,0,0,1},{1,0,0,1}},
>-		{{0,0,0,1},{1,0,1,0},{1,0,1,0}},
>-		{{0,0,0,1},{1,0,1,1},{1,0,1,1}},
>-		{{0,0,0,1},{1,1,0,0},{1,1,0,1}},
>-		{{0,0,0,1},{1,1,0,1},{1,1,0,1}},
>-		{{0,0,1,0},{0,0,0,0},{0,0,1,0}},
>-		{{0,0,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{0,0,1,0},{0,0,1,0},{0,0,1,0}},
>-		{{0,0,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,1,0},{0,1,0,0},{0,1,1,0}},
>-		{{0,0,1,0},{0,1,1,0},{0,1,1,0}},
>-		{{0,0,1,0},{1,0,0,1},{1,0,0,1}},
>-		{{0,0,1,0},{1,0,1,0},{1,0,1,0}},
>-		{{0,0,1,0},{1,0,1,1},{1,0,1,1}},
>-		{{0,0,1,0},{1,1,0,0},{1,1,0,0}},
>-		{{0,0,1,0},{1,1,0,1},{1,1,0,1}},
>-		{{0,0,1,1},{0,0,0,0},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,0,1},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,1,0},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,1,1},{0,1,0,0},{0,1,1,0}},
>-		{{0,0,1,1},{0,1,1,0},{0,1,1,0}},
>-		{{0,0,1,1},{1,0,0,1},{1,0,0,1}},
>-		{{0,0,1,1},{1,0,1,0},{1,0,1,0}},
>-		{{0,0,1,1},{1,0,1,1},{1,0,1,1}},
>-		{{0,0,1,1},{1,1,0,0},{1,1,0,1}},
>-		{{0,0,1,1},{1,1,0,1},{1,1,0,1}},
>-		{{0,1,0,0},{0,0,0,0},{0,1,0,0}},
>-		{{0,1,0,0},{0,0,0,1},{0,0,0,1}},
>-		{{0,1,0,0},{0,0,1,0},{0,1,1,0}},
>-		{{0,1,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,1,0,0},{0,1,0,0},{0,1,0,0}},
>-		{{0,1,0,0},{0,1,1,0},{0,1,1,0}},
>-		{{0,1,0,0},{1,0,0,1},{1,0,0,1}},
>-		{{0,1,0,0},{1,0,1,0},{1,0,1,0}},
>-		{{0,1,0,0},{1,0,1,1},{1,0,1,1}},
>-		{{0,1,0,0},{1,1,0,0},{1,1,0,0}},
>-		{{0,1,0,0},{1,1,0,1},{1,1,0,1}},
>-		{{0,1,1,0},{0,0,0,0},{0,1,1,0}},
>-		{{0,1,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{0,1,1,0},{0,0,1,0},{0,1,1,0}},
>-		{{0,1,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,1,1,0},{0,1,0,0},{0,1,1,0}},
>-		{{0,1,1,0},{0,1,1,0},{0,1,1,0}},
>-		{{0,1,1,0},{1,0,0,1},{1,0,0,1}},
>-		{{0,1,1,0},{1,0,1,0},{1,0,1,0}},
>-		{{0,1,1,0},{1,0,1,1},{1,0,1,1}},
>-		{{0,1,1,0},{1,1,0,0},{1,1,0,0}},
>-		{{0,1,1,0},{1,1,0,1},{1,1,0,1}},
>-		{{1,0,0,1},{0,0,0,0},{1,0,0,1}},
>-		{{1,0,0,1},{0,0,0,1},{1,0,0,1}},
>-		{{1,0,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,0,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,0,1},{0,1,0,0},{0,1,0,0}},
>-		{{1,0,0,1},{0,1,1,0},{0,1,1,0}},
>-		{{1,0,0,1},{1,0,0,1},{1,0,0,1}},
>-		{{1,0,0,1},{1,0,1,0},{1,0,1,0}},
>-		{{1,0,0,1},{1,0,1,1},{1,0,1,1}},
>-		{{1,0,0,1},{1,1,0,0},{1,1,0,1}},
>-		{{1,0,0,1},{1,1,0,1},{1,1,0,1}},
>-		{{1,0,1,0},{0,0,0,0},{1,0,1,0}},
>-		{{1,0,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{1,0,1,0},{0,0,1,0},{1,0,1,0}},
>-		{{1,0,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,1,0},{0,1,0,0},{1,0,1,0}},
>-		{{1,0,1,0},{0,1,1,0},{1,0,1,0}},
>-		{{1,0,1,0},{1,0,0,1},{1,0,0,1}},
>-		{{1,0,1,0},{1,0,1,0},{1,0,1,0}},
>-		{{1,0,1,0},{1,0,1,1},{1,0,1,1}},
>-		{{1,0,1,0},{1,1,0,0},{1,1,0,0}},
>-		{{1,0,1,0},{1,1,0,1},{1,1,0,1}},
>-		{{1,0,1,1},{0,0,0,0},{1,0,1,1}},
>-		{{1,0,1,1},{0,0,0,1},{1,0,1,1}},
>-		{{1,0,1,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,0,1,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,1,1},{0,1,0,0},{0,1,0,0}},
>-		{{1,0,1,1},{0,1,1,0},{0,1,1,0}},
>-		{{1,0,1,1},{1,0,0,1},{1,0,0,1}},
>-		{{1,0,1,1},{1,0,1,0},{1,0,1,0}},
>-		{{1,0,1,1},{1,0,1,1},{1,0,1,1}},
>-		{{1,0,1,1},{1,1,0,0},{1,1,0,1}},
>-		{{1,0,1,1},{1,1,0,1},{1,1,0,1}},
>-		{{1,1,0,0},{0,0,0,0},{1,1,0,0}},
>-		{{1,1,0,0},{0,0,0,1},{1,1,0,1}},
>-		{{1,1,0,0},{0,0,1,0},{0,0,1,0}},
>-		{{1,1,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{1,1,0,0},{0,1,0,0},{0,1,0,0}},
>-		{{1,1,0,0},{0,1,1,0},{0,1,1,0}},
>-		{{1,1,0,0},{1,0,0,1},{1,0,0,1}},
>-		{{1,1,0,0},{1,0,1,0},{1,0,1,0}},
>-		{{1,1,0,0},{1,0,1,1},{1,0,1,1}},
>-		{{1,1,0,0},{1,1,0,0},{1,1,0,0}},
>-		{{1,1,0,0},{1,1,0,1},{1,1,0,1}},
>-		{{1,1,0,1},{0,0,0,0},{1,1,0,1}},
>-		{{1,1,0,1},{0,0,0,1},{0,0,0,1}},
>-		{{1,1,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,1,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,1,0,1},{0,1,0,0},{0,1,0,0}},
>-		{{1,1,0,1},{0,1,1,0},{0,1,1,0}},
>-		{{1,1,0,1},{1,0,0,1},{1,0,0,1}},
>-		{{1,1,0,1},{1,0,1,0},{1,0,1,0}},
>-		{{1,1,0,1},{1,0,1,1},{1,0,1,1}},
>-		{{1,1,0,1},{1,1,0,0},{1,1,0,1}},
>-		{{1,1,0,1},{1,1,0,1},{1,1,0,1}},
>-	};
>-	int failures = 0;
>-	long start;
>-	if (combinationTestsloopsNb > 1) {
>-		start = System.currentTimeMillis();
>-	}
>-	String header = "addInitializationsFrom failures: "; //$NON-NLS-1$
>-	for (int l = 0; l < combinationTestsloopsNb ; l++) {
>-		for (int i = 0; i < testData.length; i++) {
>-			UnconditionalFlowInfoTestHarness result;
>-			if (!(result = (UnconditionalFlowInfoTestHarness)(
>-					UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][0])).
>-						addInitializationsFrom(
>-								UnconditionalFlowInfoTestHarness.
>-								testUnconditionalFlowInfo(testData[i][1]))).
>-					testEquals(UnconditionalFlowInfoTestHarness.
>-								testUnconditionalFlowInfo(testData[i][2]))) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-		}
>-	}
>-	if (combinationTestsloopsNb > 1) {
>-		System.out.println("addInitial...\t\t" + combinationTestsloopsNb + "\t" + 
>-				(System.currentTimeMillis() - start));
>-	}
>-	// PREMATURE optimize test (extraneous allocations and copies)
>-	// PREMATURE optimize test (extraneous iterations - undup)
>-	UnconditionalFlowInfoTestHarness 
>-		zero = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(new long[] {0,0,0,0}),
>-		left0, left1, right1, left2, right2, 
>-		expected0, expected1, expected2, result;
>-	for (int i = 0; i < testData.length; i++) {
>-			left0 = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][0]);
>-			left1 = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][0], 64);
>-			left2 = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0], 128);
>-			right1 = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][1], 64);
>-			right2 = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][1], 128);
>-			expected0 = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][2]);
>-			expected1 = UnconditionalFlowInfoTestHarness.
>-					testUnconditionalFlowInfo(testData[i][2], 64);
>-			expected2 = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][2], 128);
>-		if (!(result = (UnconditionalFlowInfoTestHarness) 
>-				left1.copy().addInitializationsFrom(right1)).
>-					testEquals(expected1)) {
>-			if (failures == 0) {
>-				System.out.println(header);
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + testStringValueOf(testData[i][1]) +
>-				',' + result.testString() + 
>-				"}, // (64, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-		}
>-		if ((testData[i][0][0] | testData[i][0][1] | 
>-				testData[i][0][2] | testData[i][0][3]) == 0) {
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					zero.copy().addInitializationsFrom(right1)).
>-						testEquals(expected1)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) right2.copy().
>-					addInitializationsFrom(right1)).
>-						testEquals(expected1, 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero 128, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					 zero.copy().addInitializationsFrom(right2)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString(128) + 
>-					"}, // (zero, 128) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					 right1.copy().addInitializationsFrom(right2)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString(128) + 
>-					"}, // (zero 64, 128) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-		}
>-		if ((testData[i][1][0] | testData[i][1][1] | 
>-				testData[i][1][2] | testData[i][1][3]) == 0) {
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left0.copy().addInitializationsFrom(left2)).
>-						testEquals(expected0, 0)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (1, zero 128) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left1.copy().addInitializationsFrom(zero)).
>-						testEquals(expected1)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (64, zero) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left1.copy().addInitializationsFrom(left2)).
>-						testEquals(expected1, 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (64, zero 128) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left2.copy().addInitializationsFrom(zero)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (128, zero) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left2.addInitializationsFrom(left1)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (128, zero 64) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-		}
>-	}
>-	if (printTablesAsNames) {
>-		System.out.println("RECAP TABLE FOR ADD");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testSymbolicValueOf(testData[i][0]) + " + " +
>-				testSymbolicValueOf(testData[i][1]) + " -> " +
>-				testSymbolicValueOf(testData[i][2]));
>-		}	
>-	}
>-	if (printTablesAsCodes) {
>-		System.out.println("RECAP TABLE FOR ADD");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testCodedValueOf(testData[i][0]) + " " +
>-				testCodedValueOf(testData[i][1]) + " " +
>-				testCodedValueOf(testData[i][2]));
>-		}
>-	}
>-	if (printTruthMaps) {
>-		for (int i = 0; i < 4; i++) {
>-			System.out.println("======================================================");
>-			System.out.println("Truth map for addInitializationsFrom null bit " + (i + 1));
>-			System.out.println();
>-			printTruthMap(testData, i);
>-		}
>-	}	
>-	assertTrue("nb of failures: " + failures, failures == 0);
>-}
>-
>-public void test2056_addPotentialInitializationsFrom() {
>-	long [][][] testData = {
>-		{{0,0,0,0},{0,0,0,0},{0,0,0,0}},
>-		{{0,0,0,0},{0,0,0,1},{0,0,0,1}},
>-		{{0,0,0,0},{0,0,1,0},{0,0,1,0}},
>-		{{0,0,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,0,0},{0,1,0,0},{0,0,0,0}},
>-		{{0,0,0,0},{0,1,1,0},{0,0,1,0}},
>-		{{0,0,0,0},{1,0,0,1},{0,0,0,1}},
>-		{{0,0,0,0},{1,0,1,0},{0,0,1,0}},
>-		{{0,0,0,0},{1,0,1,1},{0,0,0,1}},
>-		{{0,0,0,0},{1,1,0,0},{0,0,0,0}},
>-		{{0,0,0,0},{1,1,0,1},{0,0,0,1}},
>-		{{0,0,0,1},{0,0,0,0},{0,0,0,1}},
>-		{{0,0,0,1},{0,0,0,1},{0,0,0,1}},
>-		{{0,0,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{0,0,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,0,1},{0,1,0,0},{0,0,0,1}},
>-		{{0,0,0,1},{0,1,1,0},{0,0,1,1}},
>-		{{0,0,0,1},{1,0,0,1},{0,0,0,1}},
>-		{{0,0,0,1},{1,0,1,0},{0,0,1,1}},
>-		{{0,0,0,1},{1,0,1,1},{0,0,0,1}},
>-		{{0,0,0,1},{1,1,0,0},{0,0,0,1}},
>-		{{0,0,0,1},{1,1,0,1},{0,0,0,1}},
>-		{{0,0,1,0},{0,0,0,0},{0,0,1,0}},
>-		{{0,0,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{0,0,1,0},{0,0,1,0},{0,0,1,0}},
>-		{{0,0,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,1,0},{0,1,0,0},{0,0,1,0}},
>-		{{0,0,1,0},{0,1,1,0},{0,0,1,0}},
>-		{{0,0,1,0},{1,0,0,1},{0,0,1,1}},
>-		{{0,0,1,0},{1,0,1,0},{0,0,1,0}},
>-		{{0,0,1,0},{1,0,1,1},{0,0,1,1}},
>-		{{0,0,1,0},{1,1,0,0},{0,0,1,0}},
>-		{{0,0,1,0},{1,1,0,1},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,0,0},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,0,1},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,1,0},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,1,1},{0,1,0,0},{0,0,1,1}},
>-		{{0,0,1,1},{0,1,1,0},{0,0,1,1}},
>-		{{0,0,1,1},{1,0,0,1},{0,0,1,1}},
>-		{{0,0,1,1},{1,0,1,0},{0,0,1,1}},
>-		{{0,0,1,1},{1,0,1,1},{0,0,1,1}},
>-		{{0,0,1,1},{1,1,0,0},{0,0,1,1}},
>-		{{0,0,1,1},{1,1,0,1},{0,0,1,1}},
>-		{{0,1,0,0},{0,0,0,0},{0,1,0,0}},
>-		{{0,1,0,0},{0,0,0,1},{0,0,0,1}},
>-		{{0,1,0,0},{0,0,1,0},{0,1,1,0}},
>-		{{0,1,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,1,0,0},{0,1,0,0},{0,1,0,0}},
>-		{{0,1,0,0},{0,1,1,0},{0,1,1,0}},
>-		{{0,1,0,0},{1,0,0,1},{0,0,0,1}},
>-		{{0,1,0,0},{1,0,1,0},{0,1,1,0}},
>-		{{0,1,0,0},{1,0,1,1},{0,0,0,1}},
>-		{{0,1,0,0},{1,1,0,0},{0,1,0,0}},
>-		{{0,1,0,0},{1,1,0,1},{0,0,0,1}},
>-		{{0,1,1,0},{0,0,0,0},{0,1,1,0}},
>-		{{0,1,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{0,1,1,0},{0,0,1,0},{0,1,1,0}},
>-		{{0,1,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,1,1,0},{0,1,0,0},{0,1,1,0}},
>-		{{0,1,1,0},{0,1,1,0},{0,1,1,0}},
>-		{{0,1,1,0},{1,0,0,1},{0,0,1,1}},
>-		{{0,1,1,0},{1,0,1,0},{0,1,1,0}},
>-		{{0,1,1,0},{1,0,1,1},{0,0,1,1}},
>-		{{0,1,1,0},{1,1,0,0},{0,1,1,0}},
>-		{{0,1,1,0},{1,1,0,1},{0,0,1,1}},
>-		{{1,0,0,1},{0,0,0,0},{1,0,0,1}},
>-		{{1,0,0,1},{0,0,0,1},{1,0,1,1}},
>-		{{1,0,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,0,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,0,1},{0,1,0,0},{1,0,0,1}},
>-		{{1,0,0,1},{0,1,1,0},{0,0,1,1}},
>-		{{1,0,0,1},{1,0,0,1},{1,0,0,1}},
>-		{{1,0,0,1},{1,0,1,0},{0,0,1,1}},
>-		{{1,0,0,1},{1,0,1,1},{1,0,1,1}},
>-		{{1,0,0,1},{1,1,0,0},{1,0,0,1}},
>-		{{1,0,0,1},{1,1,0,1},{1,0,0,1}},
>-		{{1,0,1,0},{0,0,0,0},{1,0,1,0}},
>-		{{1,0,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{1,0,1,0},{0,0,1,0},{1,0,1,0}},
>-		{{1,0,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,1,0},{0,1,0,0},{1,0,1,0}},
>-		{{1,0,1,0},{0,1,1,0},{1,0,1,0}},
>-		{{1,0,1,0},{1,0,0,1},{0,0,1,1}},
>-		{{1,0,1,0},{1,0,1,0},{1,0,1,0}},
>-		{{1,0,1,0},{1,0,1,1},{0,0,1,1}},
>-		{{1,0,1,0},{1,1,0,0},{1,0,1,0}},
>-		{{1,0,1,0},{1,1,0,1},{0,0,1,1}},
>-		{{1,0,1,1},{0,0,0,0},{1,0,1,1}},
>-		{{1,0,1,1},{0,0,0,1},{1,0,1,1}},
>-		{{1,0,1,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,0,1,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,1,1},{0,1,0,0},{1,0,1,1}},
>-		{{1,0,1,1},{0,1,1,0},{0,0,1,1}},
>-		{{1,0,1,1},{1,0,0,1},{1,0,1,1}},
>-		{{1,0,1,1},{1,0,1,0},{0,0,1,1}},
>-		{{1,0,1,1},{1,0,1,1},{1,0,1,1}},
>-		{{1,0,1,1},{1,1,0,0},{1,0,1,1}},
>-		{{1,0,1,1},{1,1,0,1},{1,0,1,1}},
>-		{{1,1,0,0},{0,0,0,0},{1,1,0,0}},
>-		{{1,1,0,0},{0,0,0,1},{0,0,0,1}},
>-		{{1,1,0,0},{0,0,1,0},{0,0,1,0}},
>-		{{1,1,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{1,1,0,0},{0,1,0,0},{1,1,0,0}},
>-		{{1,1,0,0},{0,1,1,0},{0,0,1,0}},
>-		{{1,1,0,0},{1,0,0,1},{0,0,0,1}},
>-		{{1,1,0,0},{1,0,1,0},{0,0,1,0}},
>-		{{1,1,0,0},{1,0,1,1},{0,0,0,1}},
>-		{{1,1,0,0},{1,1,0,0},{1,1,0,0}},
>-		{{1,1,0,0},{1,1,0,1},{1,1,0,1}},
>-		{{1,1,0,1},{0,0,0,0},{1,1,0,1}},
>-		{{1,1,0,1},{0,0,0,1},{0,0,0,1}},
>-		{{1,1,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,1,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,1,0,1},{0,1,0,0},{1,1,0,1}},
>-		{{1,1,0,1},{0,1,1,0},{0,0,1,1}},
>-		{{1,1,0,1},{1,0,0,1},{0,0,0,1}},
>-		{{1,1,0,1},{1,0,1,0},{0,0,1,1}},
>-		{{1,1,0,1},{1,0,1,1},{0,0,0,1}},
>-		{{1,1,0,1},{1,1,0,0},{1,1,0,1}},
>-		{{1,1,0,1},{1,1,0,1},{1,1,0,1}},
>-	};
>-	int failures = 0;
>-	long start;
>-	if (combinationTestsloopsNb > 1) {
>-		start = System.currentTimeMillis();
>-	}
>-	String header = "addPotentialInitializationsFrom failures: "; //$NON-NLS-1$
>-	for (int l = 0; l < combinationTestsloopsNb ; l++) {
>-		for (int i = 0; i < testData.length; i++) {
>-			UnconditionalFlowInfoTestHarness result;
>-			if (!(result = (UnconditionalFlowInfoTestHarness)(
>-					UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][0])).
>-							addPotentialInitializationsFrom(
>-								UnconditionalFlowInfoTestHarness.
>-									testUnconditionalFlowInfo(testData[i][1]))).
>-					testEquals(UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][2]))) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (combinationTestsloopsNb < 2 && 
>-					!(result = (UnconditionalFlowInfoTestHarness)(
>-							UnconditionalFlowInfoTestHarness.
>-							testUnconditionalFlowInfo(testData[i][0])).
>-								addPotentialNullInfoFrom(
>-										UnconditionalFlowInfoTestHarness.
>-											testUnconditionalFlowInfo(testData[i][1], 128))).
>-					testEquals(UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[14][0], 65), 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString(64) + 
>-					"}, // bit 64 only, instead of: {0,0,0,0}");
>-			}
>-		}
>-	}
>-	if (combinationTestsloopsNb > 1) {
>-		System.out.println("addPotential...\t" + combinationTestsloopsNb + "\t" + 
>-				(System.currentTimeMillis() - start));
>-	}
>-	UnconditionalFlowInfoTestHarness 
>-		zero = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(new long[] {0,0,0,0}),
>-		left0, left1, right1, left2, right2, 
>-		expected0, expected1, expected2, result;
>-	for (int i = 0; i < testData.length; i++) {
>-			left0 = UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][0]);
>-			left1 = UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][0], 64);
>-			left2 = UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][0], 128);
>-			right1 = UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][1], 64);
>-			right2 = UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][1], 128);
>-			expected0 = UnconditionalFlowInfoTestHarness.
>-							testUnconditionalFlowInfo(testData[i][2]);
>-			expected1 = UnconditionalFlowInfoTestHarness.
>-							testUnconditionalFlowInfo(testData[i][2], 64);
>-			expected2 = UnconditionalFlowInfoTestHarness.
>-							testUnconditionalFlowInfo(testData[i][2], 128);
>-		if (!(result = (UnconditionalFlowInfoTestHarness) 
>-				left1.copy().addPotentialInitializationsFrom(right1)).
>-					testEquals(expected1)) {
>-			if (failures == 0) {
>-				System.out.println(header);
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + testStringValueOf(testData[i][1]) +
>-				',' + result.testString() + 
>-				"}, // (64, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-		}
>-		if (testData[i][0][0] + testData[i][0][1] + 
>-				testData[i][0][2] + testData[i][0][3] == 0) {
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					zero.copy().addPotentialInitializationsFrom(right1)).
>-						testEquals(expected1)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					right2.copy().addPotentialInitializationsFrom(right1)).
>-						testEquals(expected1, 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero 128, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					(UnconditionalFlowInfoTestHarness.
>-							testUnconditionalFlowInfo(new long[] {0,0,0,0}, 64)).
>-								// make just in time to get the needed structure
>-								addPotentialNullInfoFrom(right2)).
>-									testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero extra, 128) null only - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					((UnconditionalFlowInfo)right2.copy()).
>-						addPotentialNullInfoFrom(right1)).
>-							testEquals(expected1, 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero 128, 64) null only - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					 ((UnconditionalFlowInfo)zero.copy()).
>-					 	addPotentialNullInfoFrom(right2)).
>-					 		testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString(128) + 
>-					"}, // (zero, 128) null only - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					 ((UnconditionalFlowInfo)right1.copy()).
>-					 	addPotentialNullInfoFrom(right2)).
>-					 		testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString(128) + 
>-					"}, // (zero 64, 128) null only - instead of: " + testStringValueOf(testData[i][2]));
>-			}		}
>-		if (testData[i][1][0] + testData[i][1][1] + 
>-				testData[i][1][2] + testData[i][1][3] == 0) {
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					((UnconditionalFlowInfoTestHarness)left0.copy()).
>-						addPotentialNullInfoFrom(left2)).
>-							testEquals(expected0, 1)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (1, zero 128) null only - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					left1.copy().addPotentialInitializationsFrom(zero)).
>-						testEquals(expected1)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (64, zero) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					left1.copy().addPotentialInitializationsFrom(left2)).
>-						testEquals(expected1, 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (64, zero 128) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					((UnconditionalFlowInfo)left1.copy()).
>-						addPotentialNullInfoFrom(left2)).
>-							testEquals(expected1, 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (64, zero 128) null only - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					((UnconditionalFlowInfo)left2.copy()).
>-						addPotentialNullInfoFrom(zero)).
>-							testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (128, zero) null only - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left2.addPotentialNullInfoFrom(left1)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (128, zero 64) null only - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-		}
>-	}
>-	if (printTablesAsNames) {
>-		System.out.println("RECAP TABLE FOR ADD POTENTIAL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testSymbolicValueOf(testData[i][0]) + " + " +
>-				testSymbolicValueOf(testData[i][1]) + " -> " +
>-				testSymbolicValueOf(testData[i][2]));
>-		}
>-	}
>-	if (printTablesAsCodes) {
>-		System.out.println("RECAP TABLE FOR ADD POTENTIAL");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testCodedValueOf(testData[i][0]) + " " +
>-				testCodedValueOf(testData[i][1]) + " " +
>-				testCodedValueOf(testData[i][2]));
>-		}
>-	}
>-	if (printTruthMaps) {
>-		for (int i = 0; i < 4; i++) {
>-			System.out.println("======================================================");
>-			System.out.println("Truth map for addPotentialInitializationsFrom null bit " + (i + 1));
>-			System.out.println();
>-		}
>-	}	
>-	assertTrue("nb of failures: " + failures, failures == 0);
>-}
>-
>-public void test2057_mergedWith() {
>-	long [][][] testData = {
>-		{{0,0,0,0},{0,0,0,0},{0,0,0,0}},
>-		{{0,0,0,0},{0,0,0,1},{0,0,0,1}},
>-		{{0,0,0,0},{0,0,1,0},{0,0,1,0}},
>-		{{0,0,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,0,0},{0,1,0,0},{0,0,1,0}},
>-		{{0,0,0,0},{0,1,1,0},{0,0,1,0}},
>-		{{0,0,0,0},{1,0,0,1},{0,0,0,1}},
>-		{{0,0,0,0},{1,0,1,0},{0,0,1,0}},
>-		{{0,0,0,0},{1,0,1,1},{0,0,0,1}},
>-		{{0,0,0,0},{1,1,0,0},{0,0,0,0}},
>-		{{0,0,0,0},{1,1,0,1},{0,0,0,1}},
>-		{{0,0,0,1},{0,0,0,0},{0,0,0,1}},
>-		{{0,0,0,1},{0,0,0,1},{0,0,0,1}},
>-		{{0,0,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{0,0,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,0,1},{0,1,0,0},{0,0,1,1}},
>-		{{0,0,0,1},{0,1,1,0},{0,0,1,1}},
>-		{{0,0,0,1},{1,0,0,1},{0,0,0,1}},
>-		{{0,0,0,1},{1,0,1,0},{0,0,1,1}},
>-		{{0,0,0,1},{1,0,1,1},{0,0,0,1}},
>-		{{0,0,0,1},{1,1,0,0},{0,0,0,1}},
>-		{{0,0,0,1},{1,1,0,1},{0,0,0,1}},
>-		{{0,0,1,0},{0,0,0,0},{0,0,1,0}},
>-		{{0,0,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{0,0,1,0},{0,0,1,0},{0,0,1,0}},
>-		{{0,0,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,1,0},{0,1,0,0},{0,0,1,0}},
>-		{{0,0,1,0},{0,1,1,0},{0,0,1,0}},
>-		{{0,0,1,0},{1,0,0,1},{0,0,1,1}},
>-		{{0,0,1,0},{1,0,1,0},{0,0,1,0}},
>-		{{0,0,1,0},{1,0,1,1},{0,0,1,1}},
>-		{{0,0,1,0},{1,1,0,0},{0,0,1,0}},
>-		{{0,0,1,0},{1,1,0,1},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,0,0},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,0,1},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,1,0},{0,0,1,1}},
>-		{{0,0,1,1},{0,0,1,1},{0,0,1,1}},
>-		{{0,0,1,1},{0,1,0,0},{0,0,1,1}},
>-		{{0,0,1,1},{0,1,1,0},{0,0,1,1}},
>-		{{0,0,1,1},{1,0,0,1},{0,0,1,1}},
>-		{{0,0,1,1},{1,0,1,0},{0,0,1,1}},
>-		{{0,0,1,1},{1,0,1,1},{0,0,1,1}},
>-		{{0,0,1,1},{1,1,0,0},{0,0,1,1}},
>-		{{0,0,1,1},{1,1,0,1},{0,0,1,1}},
>-		{{0,1,0,0},{0,0,0,0},{0,0,1,0}},
>-		{{0,1,0,0},{0,0,0,1},{0,0,1,1}},
>-		{{0,1,0,0},{0,0,1,0},{0,0,1,0}},
>-		{{0,1,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,1,0,0},{0,1,0,0},{0,1,0,0}},
>-		{{0,1,0,0},{0,1,1,0},{0,1,1,0}},
>-		{{0,1,0,0},{1,0,0,1},{0,0,0,1}},
>-		{{0,1,0,0},{1,0,1,0},{0,1,1,0}},
>-		{{0,1,0,0},{1,0,1,1},{0,0,1,1}},
>-		{{0,1,0,0},{1,1,0,0},{0,0,1,0}},
>-		{{0,1,0,0},{1,1,0,1},{0,0,1,1}},
>-		{{0,1,1,0},{0,0,0,0},{0,0,1,0}},
>-		{{0,1,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{0,1,1,0},{0,0,1,0},{0,0,1,0}},
>-		{{0,1,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{0,1,1,0},{0,1,0,0},{0,1,1,0}},
>-		{{0,1,1,0},{0,1,1,0},{0,1,1,0}},
>-		{{0,1,1,0},{1,0,0,1},{0,0,1,1}},
>-		{{0,1,1,0},{1,0,1,0},{0,1,1,0}},
>-		{{0,1,1,0},{1,0,1,1},{0,0,1,1}},
>-		{{0,1,1,0},{1,1,0,0},{0,0,1,0}},
>-		{{0,1,1,0},{1,1,0,1},{0,0,1,1}},
>-		{{1,0,0,1},{0,0,0,0},{0,0,0,1}},
>-		{{1,0,0,1},{0,0,0,1},{0,0,0,1}},
>-		{{1,0,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,0,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,0,1},{0,1,0,0},{0,0,0,1}},
>-		{{1,0,0,1},{0,1,1,0},{0,0,1,1}},
>-		{{1,0,0,1},{1,0,0,1},{1,0,0,1}},
>-		{{1,0,0,1},{1,0,1,0},{0,0,1,1}},
>-		{{1,0,0,1},{1,0,1,1},{1,0,1,1}},
>-		{{1,0,0,1},{1,1,0,0},{1,1,0,1}},
>-		{{1,0,0,1},{1,1,0,1},{1,1,0,1}},
>-		{{1,0,1,0},{0,0,0,0},{0,0,1,0}},
>-		{{1,0,1,0},{0,0,0,1},{0,0,1,1}},
>-		{{1,0,1,0},{0,0,1,0},{0,0,1,0}},
>-		{{1,0,1,0},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,1,0},{0,1,0,0},{0,1,1,0}},
>-		{{1,0,1,0},{0,1,1,0},{0,1,1,0}},
>-		{{1,0,1,0},{1,0,0,1},{0,0,1,1}},
>-		{{1,0,1,0},{1,0,1,0},{1,0,1,0}},
>-		{{1,0,1,0},{1,0,1,1},{0,0,1,1}},
>-		{{1,0,1,0},{1,1,0,0},{0,0,1,0}},
>-		{{1,0,1,0},{1,1,0,1},{0,0,1,1}},
>-		{{1,0,1,1},{0,0,0,0},{0,0,0,1}},
>-		{{1,0,1,1},{0,0,0,1},{0,0,0,1}},
>-		{{1,0,1,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,0,1,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,0,1,1},{0,1,0,0},{0,0,1,1}},
>-		{{1,0,1,1},{0,1,1,0},{0,0,1,1}},
>-		{{1,0,1,1},{1,0,0,1},{1,0,1,1}},
>-		{{1,0,1,1},{1,0,1,0},{0,0,1,1}},
>-		{{1,0,1,1},{1,0,1,1},{1,0,1,1}},
>-		{{1,0,1,1},{1,1,0,0},{0,0,0,1}},
>-		{{1,0,1,1},{1,1,0,1},{0,0,0,1}},
>-		{{1,1,0,0},{0,0,0,0},{0,0,0,0}},
>-		{{1,1,0,0},{0,0,0,1},{0,0,0,1}},
>-		{{1,1,0,0},{0,0,1,0},{0,0,1,0}},
>-		{{1,1,0,0},{0,0,1,1},{0,0,1,1}},
>-		{{1,1,0,0},{0,1,0,0},{0,0,1,0}},
>-		{{1,1,0,0},{0,1,1,0},{0,0,1,0}},
>-		{{1,1,0,0},{1,0,0,1},{1,1,0,1}},
>-		{{1,1,0,0},{1,0,1,0},{0,0,1,0}},
>-		{{1,1,0,0},{1,0,1,1},{0,0,0,1}},
>-		{{1,1,0,0},{1,1,0,0},{1,1,0,0}},
>-		{{1,1,0,0},{1,1,0,1},{1,1,0,1}},
>-		{{1,1,0,1},{0,0,0,0},{0,0,0,1}},
>-		{{1,1,0,1},{0,0,0,1},{0,0,0,1}},
>-		{{1,1,0,1},{0,0,1,0},{0,0,1,1}},
>-		{{1,1,0,1},{0,0,1,1},{0,0,1,1}},
>-		{{1,1,0,1},{0,1,0,0},{0,0,1,1}},
>-		{{1,1,0,1},{0,1,1,0},{0,0,1,1}},
>-		{{1,1,0,1},{1,0,0,1},{1,1,0,1}},
>-		{{1,1,0,1},{1,0,1,0},{0,0,1,1}},
>-		{{1,1,0,1},{1,0,1,1},{0,0,0,1}},
>-		{{1,1,0,1},{1,1,0,0},{1,1,0,1}},
>-		{{1,1,0,1},{1,1,0,1},{1,1,0,1}}
>-	};
>-	int failures = 0;
>-	long start;
>-	if (combinationTestsloopsNb > 1) {
>-		start = System.currentTimeMillis();
>-	}
>-	String header = "mergedWith failures: ";
>-	for (int l = 0; l < combinationTestsloopsNb ; l++) {
>-		for (int i = 0; i < testData.length; i++) {
>-			UnconditionalFlowInfoTestHarness result;
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][0]).
>-							mergedWith(
>-								UnconditionalFlowInfoTestHarness.
>-									testUnconditionalFlowInfo(testData[i][1]))).
>-					testEquals(UnconditionalFlowInfoTestHarness.
>-						testUnconditionalFlowInfo(testData[i][2]))) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-		}
>-	}
>-	if (combinationTestsloopsNb > 1) {
>-		System.out.println("mergedWith\t\t\t" + combinationTestsloopsNb + "\t" + 
>-				(System.currentTimeMillis() - start));
>-	}
>-	UnconditionalFlowInfoTestHarness 
>-		zero = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(new long[] {0,0,0,0}),
>-		left1, right1, left2, right2, 
>-		expected1, expected2, result;
>-	for (int i = 0; i < testData.length; i++) {
>-		left1 = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][0], 64);
>-		left2 = UnconditionalFlowInfoTestHarness.
>-			testUnconditionalFlowInfo(testData[i][0], 128);
>-		right1 = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1], 64);
>-		right2 = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][1], 128);
>-		expected1 = UnconditionalFlowInfoTestHarness.
>-				testUnconditionalFlowInfo(testData[i][2], 64);
>-		expected2 = UnconditionalFlowInfoTestHarness.
>-			testUnconditionalFlowInfo(testData[i][2], 128);
>-		if (!(result = (UnconditionalFlowInfoTestHarness) 
>-				left1.copy().mergedWith(right1)).testEquals(expected1)) {
>-			if (failures == 0) {
>-				System.out.println(header);
>-			}
>-			failures++;
>-			System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-				',' + testStringValueOf(testData[i][1]) +
>-				',' + result.testString() + 
>-				"}, // (64, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-		}
>-		if (testData[i][0][0] + testData[i][0][1] + 
>-				testData[i][0][2] + testData[i][0][3] == 0) {
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					zero.copy().mergedWith(right1)).testEquals(expected1)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					right2.copy().mergedWith(right1)).
>-						testEquals(expected1, 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero 128, 64) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					zero.copy().mergedWith(right2)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero, 128) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					right1.copy().mergedWith(right2)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (zero 64, 128) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-		}
>-		if (testData[i][1][0] + testData[i][1][1] + 
>-				testData[i][1][2] + testData[i][1][3] == 0) {
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left1.copy().mergedWith(zero)).testEquals(expected1)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (64, zero) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness)
>-					left1.mergedWith(left2)).
>-						testEquals(expected1, 64)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (64, zero 128) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left2.copy().mergedWith(zero)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (128, zero) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-			if (!(result = (UnconditionalFlowInfoTestHarness) 
>-					left2.mergedWith(left1)).
>-						testEquals(expected2, 128)) {
>-				if (failures == 0) {
>-					System.out.println(header);
>-				}
>-				failures++;
>-				System.out.println("\t\t{" + testStringValueOf(testData[i][0]) + 
>-					',' + testStringValueOf(testData[i][1]) +
>-					',' + result.testString() + 
>-					"}, // (128, zero 64) - instead of: " + testStringValueOf(testData[i][2]));
>-			}
>-		}
>-	}
>-	if (printTablesAsNames) {
>-		System.out.println("RECAP TABLE FOR MERGE");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testSymbolicValueOf(testData[i][0]) + " + " +
>-				testSymbolicValueOf(testData[i][1]) + " -> " +
>-				testSymbolicValueOf(testData[i][2]));
>-		}
>-		
>-	}
>-	if (printTablesAsCodes) {
>-		System.out.println("RECAP TABLE FOR MERGE");
>-		for (int i = 0; i < testData.length; i++) {
>-			System.out.println(testCodedValueOf(testData[i][0]) + " " +
>-				testCodedValueOf(testData[i][1]) + " " +
>-				testCodedValueOf(testData[i][2]));
>-		}
>-	}
>-	if (printTruthMaps) {
>-		for (int i = 0; i < 4; i++) {
>-			System.out.println("======================================================");
>-			System.out.println("Truth map for mergedWith null bit " + (i + 1));
>-			System.out.println();
>-		}
>-	}
>-	assertTrue("nb of failures: " + failures, failures == 0);
>-}
>-
>-// Use for coverage tests only. Needs specific instrumentation of code,
>-// that is controled by UnconditionalFlowInfo#coverageTestFlag.
>-// Note: coverage tests tend to fill the console with messages, and the
>-// instrumented code is slower, so never release code with active
>-// coverage tests.
>-private static int coveragePointsNb = 46;
>-
>-// Coverage by state transition tables methods.
>-public void test2998_coverage() {
>-	if (UnconditionalFlowInfo.coverageTestFlag) {
>-		// sanity check: need to be sure that the tests execute properly when not
>-		// trying to check coverage
>-		UnconditionalFlowInfo.coverageTestId = 0;
>-		test0053_array();
>-		test0070_type_reference();
>-		test2050_markAsComparedEqualToNonNull();
>-		test2051_markAsComparedEqualToNull();
>-		test2052_markAsDefinitelyNonNull();
>-		test2053_markAsDefinitelyNull();
>-		test2054_markAsDefinitelyUnknown();
>-		test2055_addInitializationsFrom();
>-		test2056_addPotentialInitializationsFrom();
>-		test2057_mergedWith();
>-		// coverage check
>-		int failuresNb = 0;
>-		for (int i = 1; i <= coveragePointsNb; i++) {
>-			try {
>-				UnconditionalFlowInfo.coverageTestId = i;
>-				test0053_array();
>-				test0070_type_reference();
>-				test2050_markAsComparedEqualToNonNull();
>-				test2051_markAsComparedEqualToNull();
>-				test2052_markAsDefinitelyNonNull();
>-				test2053_markAsDefinitelyNull();
>-				test2054_markAsDefinitelyUnknown();
>-				test2055_addInitializationsFrom();
>-				test2056_addPotentialInitializationsFrom();
>-				test2057_mergedWith();
>-			}
>-			catch (AssertionFailedError e) {
>-				continue;
>-			}
>-			catch (AssertionFailedException e) {
>-				continue;
>-			}
>-			failuresNb++;
>-			System.out.println("Missing coverage point: " + i);
>-		}
>-		UnconditionalFlowInfo.coverageTestId = 0; // reset for other tests
>-		assertEquals(failuresNb + " missing coverage point(s)", failuresNb, 0);
>-	}
>-}
>-
>-// Coverage by code samples.
>-public void test2999_coverage() {
>-	if (UnconditionalFlowInfo.coverageTestFlag) {
>-		// sanity check: need to be sure that the tests execute properly when not
>-		// trying to check coverage
>-		UnconditionalFlowInfo.coverageTestId = 0;
>-		test0001_simple_local();
>-		test0053_array();
>-		test0070_type_reference();
>-		test0327_if_else();
>-		test0401_while();
>-		test0420_while();
>-		test0509_try_finally_embedded();
>-		test2000_flow_info();
>-		test2004_flow_info();
>-		test2008_flow_info();
>-		test2011_flow_info();
>-		test2013_flow_info();
>-		test2018_flow_info();
>-		test2019_flow_info();
>-		test2020_flow_info();
>-		// coverage check
>-		int failuresNb = 0;
>-		for (int i = 1; i <= coveragePointsNb; i++) {
>-			if (i > 4 && i < 15 ||
>-				i > 15 && i < 19 ||
>-				i == 22 ||
>-				i == 23 ||
>-				i == 27 ||
>-				i == 28 ||
>-				i == 30 ||
>-				i == 33 ||
>-				i == 34 ||
>-				i == 38 ||
>-				i >= 43
>-				) { // TODO (maxime) complete coverage tests
>-				continue;
>-			}
>-			try {
>-				UnconditionalFlowInfo.coverageTestId = i;
>-				test0001_simple_local();
>-				test0053_array();
>-				test0070_type_reference();
>-				test0327_if_else();
>-				test0401_while();
>-				test0420_while();
>-				test0509_try_finally_embedded();
>-				test2000_flow_info();
>-				test2004_flow_info();
>-				test2008_flow_info();
>-				test2011_flow_info();
>-				test2013_flow_info();
>-				test2018_flow_info();
>-				test2019_flow_info();
>-				test2020_flow_info();
>-			}
>-			catch (AssertionFailedError e) {
>-				continue;
>-			}
>-			catch (AssertionFailedException e) {
>-				continue;
>-			}
>-			failuresNb++;
>-			System.out.println("Missing coverage point: " + i);
>-		}
>-		UnconditionalFlowInfo.coverageTestId = 0; // reset for other tests
>-		assertEquals(failuresNb + " missing coverage point(s)", failuresNb, 0);
>-	}
>-}
>-
>-// only works for info coded on bit 0 - least significant
>-String testCodedValueOf(long[] data) {
>-	StringBuffer result = new StringBuffer(4);
>-	for (int i = 0; i < data.length; i++) {
>-		result.append(data[i] == 0 ? '0' : '1');
>-	}
>-	return result.toString();
>-}
>-
>-String testStringValueOf(long[] data) {
>-	StringBuffer result = new StringBuffer(9);
>-	result.append('{');
>-	for (int j = 0; j < 4; j++) {
>-		if (j > 0) {
>-			result.append(',');
>-		}
>-		result.append(data[j]);
>-	}
>-	result.append('}');
>-	return result.toString();
>-}
>-
>-String testStringValueOf(long[][] data) {
>-	StringBuffer result = new StringBuffer(25);
>-	result.append('{');
>-	for (int i = 0; i < 3; i++) {
>-		if (i > 0) {
>-			result.append(',');
>-		}
>-		result.append('{');
>-		for (int j = 0; j < 4; j++) {
>-			if (j > 0) {
>-				result.append(',');
>-			}
>-			result.append(data[i][j]);
>-		}
>-		result.append('}');
>-	}
>-	result.append('}');
>-	return result.toString();
>-}
>-
>-// only works for info coded on bit 0 - least significant
>-String testSymbolicValueOf(long[] data) {
>-	if (data[0] == 0) {
>-		if (data[1] == 0) {
>-			if (data[2] == 0) {
>-				if (data[3] == 0) {
>-					return "start "; //$NON-NLS1$
>-				}
>-				else {
>-					return "pot. nn/unknown "; //$NON-NLS1$
>-				}
>-			}
>-			else {
>-				if (data[3] == 0) {
>-					return "pot. null "; //$NON-NLS1$
>-				}
>-				else {
>-					return "pot. n/nn/unkn. "; //$NON-NLS1$
>-				}
>-			}
>-		}
>-		else {
>-			if (data[2] == 0) {
>-				if (data[3] == 0) {
>-					return "prot. null "; //$NON-NLS1$
>-				}
>-				else {
>-					return "0101 "; //$NON-NLS1$
>-				}
>-			}
>-			else {
>-				if (data[3] == 0) {
>-					return "prot. null + pot. null"; //$NON-NLS1$
>-				}
>-				else {
>-					return "0111 "; //$NON-NLS1$
>-				}
>-			}
>-		}
>-	}
>-	else {
>-		if (data[1] == 0) {
>-			if (data[2] == 0) {
>-				if (data[3] == 0) {
>-					return "1000 "; //$NON-NLS1$
>-				}
>-				else {
>-					return "assigned non null "; //$NON-NLS1$
>-				}
>-			}
>-			else {
>-				if (data[3] == 0) {
>-					return "assigned null "; //$NON-NLS1$
>-				}
>-				else {
>-					return "assigned unknown "; //$NON-NLS1$
>-				}
>-			}
>-		}
>-		else {
>-			if (data[2] == 0) {
>-				if (data[3] == 0) {
>-					return "protected non null "; //$NON-NLS1$
>-				}
>-				else {
>-					return "prot. nn + pot. nn/unknown"; //$NON-NLS1$
>-				}
>-			}
>-			else {
>-				if (data[3] == 0) {
>-					return "1110 "; //$NON-NLS1$
>-				}
>-				else {
>-					return "1111 "; //$NON-NLS1$
>-				}
>-			}
>-		}
>-	}
>-}
>-
>-private void printTruthMap(long data[][][], int bit) {
>-	final int dimension = 16;
>-	printTruthMapHeader();
>-	char truthValues[][] = new char[dimension][dimension];
>-	int row, column;
>-	for (row = 0; row < dimension; row++) {
>-		for (column = 0; column < dimension; column++) {
>-			truthValues[row][column] = '.';
>-		}
>-	}
>-	String rows[] = {
>-		"0000",
>-		"0001",
>-		"0011",
>-		"0111",
>-		"1111",
>-		"1110",
>-		"1100",
>-		"1000",
>-		"1010",
>-		"1011",
>-		"1001",
>-		"1101",
>-		"0101",
>-		"0100",
>-		"0110",
>-		"0010"
>-	};
>-	if (false) { // checking row names
>-		for (row = 0; row < dimension; row++) {
>-			long [] state = new long [4];
>-			for (int i = 0; i < 4; i++) {
>-				state[i] = rows[row].charAt(i) - '0';
>-			}
>-			System.out.println(row + " " + rows[row] + " " + rankForState(state));
>-		}
>-	}
>-	for (int i = 0; i < data.length; i++) {
>-		truthValues[rankForState(data[i][0])][rankForState(data[i][1])] =
>-			(char) ('0' + data[i][2][bit]);
>-	}
>-	for (row = 0; row < dimension; row++) {
>-		StringBuffer line = new StringBuffer(120);
>-		line.append(rows[row]);
>-		line.append(" | ");
>-		for (column = 0; column < dimension; column++) {
>-			line.append(truthValues[row][column]);
>-			line.append(' ');
>-		}
>-		System.out.println(line);
>-	}
>-}
>-
>-private void printTruthMapHeader() {
>-	System.out.println(" 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0");
>-	System.out.println(" 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0");
>-	System.out.println(" 0 0 1 1 1 1 0 0 1 1 0 0 0 0 1 1");
>-	System.out.println(" 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0");
>-	System.out.println(" --------------------------------");
>-}
>-
>-private int rankForState(long [] state) {
>-	if (state[0] == 0) {
>-		if (state[1] == 0) {
>-			if (state[2] == 0) {
>-				if (state[3] == 0) {
>-					return 0; 	// 0000
>-				}
>-				else {
>-					return 1; 	// 0001
>-				}
>-			}
>-			else {
>-				if (state[3] == 0) {
>-					return 15;	// 0010
>-				}
>-				else {
>-					return 2;	// 0011
>-				}
>-			}
>-		}
>-		else {
>-			if (state[2] == 0) {
>-				if (state[3] == 0) {
>-					return 13;	// 0100
>-				}
>-				else {
>-					return 12;	// 0101
>-				}
>-			}
>-			else {
>-				if (state[3] == 0) {
>-					return 14;	// 0110
>-				}
>-				else {
>-					return 3;	// 0111
>-				}
>-			}
>-		}
>-	}
>-	else {
>-		if (state[1] == 0) {
>-			if (state[2] == 0) {
>-				if (state[3] == 0) {
>-					return 7;	// 1000
>-				}
>-				else {
>-					return 10;	// 1001
>-				}
>-			}
>-			else {
>-				if (state[3] == 0) {
>-					return 8;	// 1010
>-				}
>-				else {
>-					return 9;	// 1011
>-				}
>-			}
>-		}
>-		else {
>-			if (state[2] == 0) {
>-				if (state[3] == 0) {
>-					return 6;	// 1100
>-				}
>-				else {
>-					return 11;	// 1101
>-				}
>-			}
>-			else {
>-				if (state[3] == 0) {
>-					return 5;	// 1110
>-				}
>-				else {
>-					return 4;	// 1111
>-				}
>-			}
>-		}
>-	}
>-}
>-}
>-
>-class TestLocalVariableBinding extends LocalVariableBinding {
>-	final static char [] testName = {'t', 'e', 's', 't'};
>-	TestLocalVariableBinding(int id) {
>-		super(testName, null, 0, false);
>-		this.id = id;
>-	}
>-}
>-
>-/**
>- * A class meant to augment 
>- * @link{org.eclipse.jdt.internal.compiler.flow.UnconditionalFlowInfo} with
>- * capabilities in the test domain. It especially provides factories to build
>- * fake flow info instances for use in state transition tables validation.
>- */
>-class UnconditionalFlowInfoTestHarness extends UnconditionalFlowInfo {
>-	private int testPosition;
>-	
>-/**
>- * Return a fake unconditional flow info which bit fields represent the given
>- * null bits for a local variable of id 0 within a class that would have no
>- * field.
>- * @param nullBits the bits that must be set, given in the same order as the
>- * nullAssignment* fields in UnconditionalFlowInfo definition; use 0
>- * for a bit that is not set, 1 else
>- * @return a fake unconditional flow info which bit fields represent the
>- * null bits given in parameter
>- */
>-public static UnconditionalFlowInfoTestHarness testUnconditionalFlowInfo(
>-		long [] nullBits) {
>-	return testUnconditionalFlowInfo(nullBits, 0);
>-}
>-
>-public FlowInfo copy() {
>-	UnconditionalFlowInfoTestHarness copy = 
>-		new UnconditionalFlowInfoTestHarness();
>-	copy.testPosition = this.testPosition;
>-	copy.definiteInits = this.definiteInits;
>-	copy.potentialInits = this.potentialInits;
>-	boolean hasNullInfo = (this.tagBits & NULL_FLAG_MASK) != 0;
>-	if (hasNullInfo) { 
>-		copy.nullAssignmentStatusBit1 = this.nullAssignmentStatusBit1;
>-		copy.nullAssignmentStatusBit2 = this.nullAssignmentStatusBit2;
>-		copy.nullAssignmentValueBit1 = this.nullAssignmentValueBit1;
>-		copy.nullAssignmentValueBit2 = this.nullAssignmentValueBit2;
>-	}
>-	copy.tagBits = this.tagBits;
>-	copy.maxFieldCount = this.maxFieldCount;
>-	if (this.extra != null) {
>-		int length;
>- copy.extra = new long[extraLength][];
>-		System.arraycopy(this.extra[0], 0, 
>-			(copy.extra[0] = new long[length = extra[0].length]), 0, length);
>-		System.arraycopy(this.extra[1], 0, 
>-			(copy.extra[1] = new long[length]), 0, length);
>-		if (hasNullInfo) {
>- for (int j = 0; j < extraLength; j++) {
>-			 System.arraycopy(this.extra[j], 0, 
>-				 (copy.extra[j] = new long[length]), 0, length);
>- }
>-		}
>-		else {
>- for (int j = 0; j < extraLength; j++) {
>-			 copy.extra[j] = new long[length];
>- }
>-		}
>-	}
>-	return copy;
>-}
>-
>-/**
>- * Return a fake unconditional flow info which bit fields represent the given
>- * null bits for a local variable of id position within a class that would have 
>- * no field.
>- * @param nullBits the bits that must be set, given in the same order as the
>- * nullAssignment* fields in UnconditionalFlowInfo definition; use 0
>- * for a bit that is not set, 1 else
>- * @param position the position of the variable within the bit fields; use
>- * various values to test different parts of the bit fields, within
>- * or beyond BitCacheSize
>- * @return a fake unconditional flow info which bit fields represent the
>- * null bits given in parameter
>- */
>-public static UnconditionalFlowInfoTestHarness testUnconditionalFlowInfo(
>-		long [] nullBits, int position) {
>- 	UnconditionalFlowInfoTestHarness result = 
>- 		new UnconditionalFlowInfoTestHarness();
>-	result.testPosition = position;
>-	if (position < BitCacheSize) {
>-		result.nullAssignmentStatusBit1 = nullBits[0] << position;
>-		result.nullAssignmentStatusBit2 = nullBits[1] << position;
>-		result.nullAssignmentValueBit1 = nullBits[2] << position;
>-		result.nullAssignmentValueBit2 = nullBits[3] << position;
>-	} 
>- 	else {
>-		int vectorIndex = (position / BitCacheSize) - 1,
>-			length = vectorIndex + 1;
>- position %= BitCacheSize;
>- result.extra = new long[extraLength][];
>-		result.extra[0] = new long[length];
>-		result.extra[1] = new long[length];
>- for (int j = 2; j < extraLength; j++) {
>-		 result.extra[j] = new long[length];
>-		 result.extra[j][vectorIndex] = nullBits[j - 2] << 
>-		 position;
>- }
>-	}
>-	if ((nullBits[0] | nullBits[1] | nullBits[2] | nullBits[3]) != 0) {
>-		result.tagBits |= NULL_FLAG_MASK;
>-	}
>-	result.maxFieldCount = 0;
>-	return result;
>-}
>-
>-/**
>- * Return a fake unconditional flow info which bit fields represent the given
>- * null bits for a pair of local variables of id position and position +
>- * extra * BitCacheSize within a class that would have no field.
>- * @param nullBits the bits that must be set, given in the same order as the
>- * nullAssignment* fields in UnconditionalFlowInfo definition; use 0
>- * for a bit that is not set, 1 else
>- * @param position the position of the variable within the bit fields; use
>- * various values to test different parts of the bit fields, within
>- * or beyond BitCacheSize
>- * @param extra the length of the allocated extra bit fields, if position is 
>- * beyond BitCacheSize; unused otherwise; make sure it is big enough to
>- * match position (that is, extra > position - BitCacheSize)
>- * @return a fake unconditional flow info which bit fields represent the
>- * null bits given in parameter
>- */
>-public static UnconditionalFlowInfoTestHarness testUnconditionalFlowInfo(
>-		long [] nullBits, int position, int extra) {
>- 	UnconditionalFlowInfoTestHarness result = 
>- 		new UnconditionalFlowInfoTestHarness();
>-	result.testPosition = position;
>-	if (position < BitCacheSize) {
>-		result.nullAssignmentStatusBit1 = nullBits[0] << position;
>-		result.nullAssignmentStatusBit2 = nullBits[1] << position;
>-		result.nullAssignmentValueBit1 = nullBits[2] << position;
>-		result.nullAssignmentValueBit2 = nullBits[3] << position;
>-	} 
>- 	else {
>-		int vectorIndex = (position / BitCacheSize) - 1,
>-			length = extra / BitCacheSize;
>-		position %= BitCacheSize;
>- result.extra = new long[extraLength][];
>-		result.extra[0] = new long[length];
>-		result.extra[1] = new long[length];
>- for (int j = 2; j < extraLength; j++) {
>-		 result.extra[j] = new long[length];
>-		 result.extra[j] [vectorIndex]= nullBits[j - 2] << position;
>- }
>-	}
>-	if (nullBits[1] != 0 || nullBits[3] != 0 || nullBits[0] != 0 || nullBits[2] != 0 ) {
>-		// cascade better than nullBits[0] | nullBits[1] | nullBits[2] | nullBits[3]
>-		// by 10%+
>-		// TODO (maxime) run stats to determine which is the better order
>-		result.tagBits |= NULL_FLAG_MASK;
>-	}
>-	result.maxFieldCount = 0;
>-	return result;
>-}
>-
>-/**
>- * Return true iff this flow info can be considered as equal to the one passed
>- * in parameter.
>- * @param other the flow info to compare to
>- * @return true iff this flow info compares equal to other
>- */
>-public boolean testEquals(UnconditionalFlowInfo other) {
>-	if (this.tagBits != other.tagBits) {
>-		return false;
>-	}
>-	if (this.nullAssignmentStatusBit1 != other.nullAssignmentStatusBit1 ||
>-		this.nullAssignmentStatusBit2 != other.nullAssignmentStatusBit2 ||
>-		this.nullAssignmentValueBit1 != other.nullAssignmentValueBit1 ||
>-		this.nullAssignmentValueBit2 != other.nullAssignmentValueBit2) {
>-		return false;
>-	}
>-	int left = this.extra == null ? 0 : this.extra[0].length,
>-			right = other.extra == null ? 0 : other.extra[0].length,
>-			both = 0, i;
>-	if (left > right) {
>-		both = right;
>-	}
>-	else {
>-		both = left;
>-	}
>-	for (i = 0; i < both ; i++) {
>-		if (this.extra[2][i] != 
>-				other.extra[2][i] ||
>-			this.extra[3][i] != 
>-				other.extra[3][i] ||
>-			this.extra[4][i] != 
>-				other.extra[4][i] ||
>-			this.extra[5][i] != 
>-				other.extra[5][i]) {
>-			return false;
>-		}
>-	}
>-	for (; i < left; i++) {
>-		if (this.extra[2][i] != 0 ||
>-				this.extra[3][i] != 0 ||
>-				this.extra[4][i] != 0 ||
>-				this.extra[5][i] != 0) {
>-			return false;
>-		}
>-	}
>-	for (; i < right; i++) {
>-		if (other.extra[2][i] != 0 ||
>-				other.extra[3][i] != 0 ||
>-				other.extra[4][i] != 0 ||
>-				other.extra[5][i] != 0) {
>-			return false;
>-		}
>-	}
>-	return true;
>-}
>-
>-/**
>- * Return true iff this flow info can be considered as equal to the one passed
>- * in parameter in respect with a single local variable which id would be
>- * position in a class with no field.
>- * @param other the flow info to compare to
>- * @param position the position of the local to consider
>- * @return true iff this flow info compares equal to other for a given local
>- */
>-public boolean testEquals(UnconditionalFlowInfo other, int position) {
>-	int vectorIndex = position / BitCacheSize - 1;
>-	if ((this.tagBits & other.tagBits & NULL_FLAG_MASK) == 0) {
>-		return true;
>-	}
>-	long mask;
>-	if (vectorIndex < 0) {
>-		return ((this.nullAssignmentStatusBit1 & (mask = (1L << position))) ^
>-				(other.nullAssignmentStatusBit1 & mask)) == 0 &&
>-				((this.nullAssignmentStatusBit2 & mask) ^
>-				(other.nullAssignmentStatusBit2 & mask)) == 0 &&
>-				((this.nullAssignmentValueBit1 & mask) ^
>-				(other.nullAssignmentValueBit1 & mask)) == 0 &&
>-				((this.nullAssignmentValueBit2 & mask) ^
>-				(other.nullAssignmentValueBit2 & mask)) == 0;
>-	}
>-	else {
>-		int left = this.extra == null ?
>-				0 :
>-				this.extra[0].length;
>-		int right = other.extra == null ?
>-				0 :
>-				other.extra[0].length;
>-		int both = left < right ? left : right;
>-		if (vectorIndex < both) {
>-			return ((this.extra[2][vectorIndex] & 
>-					(mask = (1L << (position % BitCacheSize)))) ^
>-				(other.extra[2][vectorIndex] & mask)) == 0 &&
>-				((this.extra[3][vectorIndex] & mask) ^
>-				(other.extra[3][vectorIndex] & mask)) == 0 &&
>-				((this.extra[4][vectorIndex] & mask) ^
>-				(other.extra[4][vectorIndex] & mask)) == 0 &&
>-				((this.extra[5][vectorIndex] & mask) ^
>-				(other.extra[5][vectorIndex] & mask)) == 0;
>-		}
>-		if (vectorIndex < left) {
>-			return ((this.extra[2][vectorIndex] |
>-					this.extra[3][vectorIndex] |
>-					this.extra[4][vectorIndex] |
>-					this.extra[5][vectorIndex]) &
>-					(1L << (position % BitCacheSize))) == 0;
>-		}
>-		return ((other.extra[2][vectorIndex] |
>-				other.extra[3][vectorIndex] |
>-				other.extra[4][vectorIndex] |
>-				other.extra[5][vectorIndex]) &
>-				(1L << (position % BitCacheSize))) == 0;
>-	}
>-}
>-
>-/**
>- * Return a string suitable for use as a representation of this flow info
>- * within test series.
>- * @return a string suitable for use as a representation of this flow info
>- */
>-public String testString() {
>-	if (this == DEAD_END) {
>-		return "FlowInfo.DEAD_END"; //$NON-NLS-1$
>-	}
>-	return testString(this.testPosition);
>-}
>-
>-/**
>- * Return a string suitable for use as a representation of this flow info
>- * within test series.
>- * @param position a position to consider instead of this flow info default
>- * test position
>- * @return a string suitable for use as a representation of this flow info
>- */
>-public String testString(int position) {
>-	if (this == DEAD_END) {
>-		return "FlowInfo.DEAD_END"; //$NON-NLS-1$
>-	}
>-	if (position < BitCacheSize) {
>-		return "{" + (this.nullAssignmentStatusBit1 >> position) //$NON-NLS-1$
>-					+ "," + (this.nullAssignmentStatusBit2 >> position) //$NON-NLS-1$
>-					+ "," + (this.nullAssignmentValueBit1 >> position) //$NON-NLS-1$
>-					+ "," + (this.nullAssignmentValueBit2 >> position) //$NON-NLS-1$
>-					+ "}"; //$NON-NLS-1$
>-	}
>-	else {
>-		int vectorIndex = position / BitCacheSize - 1,
>-			shift = position % BitCacheSize;
>-			return "{" + (this.extra[2][vectorIndex] //$NON-NLS-1$
>-			 >> shift) 
>-						+ "," + (this.extra[3][vectorIndex] //$NON-NLS-1$
>-						 >> shift)
>-						+ "," + (this.extra[4][vectorIndex] //$NON-NLS-1$
>-						 >> shift)
>-						+ "," + (this.extra[5][vectorIndex] //$NON-NLS-1$
>-						 >> shift)
>-						+ "}"; //$NON-NLS-1$
>-	}
>-}
> }
>Index: .settings/org.eclipse.jdt.ui.prefs
>===================================================================
>RCS file: .settings/org.eclipse.jdt.ui.prefs
>diff -N .settings/org.eclipse.jdt.ui.prefs
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ .settings/org.eclipse.jdt.ui.prefs	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,5 @@
>+#Thu Feb 23 14:36:02 CET 2006
>+eclipse.preferences.version=1
>+formatter_profile=org.eclipse.jdt.ui.default.eclipse_profile
>+formatter_settings_version=10
>+internal.default.compliance=user
>Index: src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceImplTransformations.java
>===================================================================
>RCS file: src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceImplTransformations.java
>diff -N src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceImplTransformations.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceImplTransformations.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,3177 @@
>+/*******************************************************************************
>+ * Copyright (c) 2005 IBM Corporation and others.
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ * IBM Corporation - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.jdt.core.tests.compiler.regression;
>+
>+import java.io.BufferedReader;
>+import java.io.BufferedWriter;
>+import java.io.File;
>+import java.io.FileOutputStream;
>+import java.io.IOException;
>+import java.io.PrintWriter;
>+import java.util.HashMap;
>+import java.util.Iterator;
>+import java.util.Map;
>+import java.util.SortedMap;
>+import java.util.TreeMap;
>+
>+import org.eclipse.jdt.core.tests.compiler.regression.NullReferenceImplTests.State;
>+import org.eclipse.jdt.internal.compiler.flow.UnconditionalFlowInfo;
>+public class NullReferenceImplTransformations {
>+	public static final Transformation
>+		markAsComparedEqualToNonNull = 
>+		// markAsComparedEqualToNonNull DEFINITION START
>+		// start => prot. non null
>+		// prot. non null => prot. non null
>+		// prot. null => prot. non null
>+		// pot. unknown => pot. nn & prot. nn 
>+		// pot. non null => pot. nn & prot. nn
>+		// pot. nn & prot. nn => pot. nn & prot. nn
>+		// pot. nn & pot. un => pot. nn & prot. nn
>+		// pot. null => prot. non null
>+		// pot. n & prot. n => prot. non null
>+		// pot. n & pot. un => pot. nn & prot. nn 
>+		// pot. n & pot. nn => pot. nn & prot. nn
>+		// def. unknown => def. non null 
>+		// def. non null => def. non null
>+		// def. null => prot. non null
>+		// markAsComparedEqualToNonNull DEFINITION END
>+			new TwoDimensionalTransformation("markAsComparedEqualToNonNull",
>+					new byte[][] {
>+					// markAsComparedEqualToNonNull INITIALIZER START
>+					{0x00,0x3C},
>+					{0x04,0x2C},
>+					{0x08,0x2C},
>+					{0x0C,0x2C},
>+					{0x10,0x3C},
>+					{0x14,0x2C},
>+					{0x18,0x2C},
>+					{0x24,0x28},
>+					{0x28,0x28},
>+					{0x2C,0x2C},
>+					{0x30,0x3C},
>+					{0x34,0x3C},
>+					{0x38,0x3C},
>+					{0x3C,0x3C},
>+					// markAsComparedEqualToNonNull INITIALIZER END
>+					}) {
>+				UnconditionalFlowInfo output(UnconditionalFlowInfo input, 
>+						TestLocalVariableBinding local) {
>+					UnconditionalFlowInfo result = (UnconditionalFlowInfo)input.copy();
>+					result.markAsComparedEqualToNonNull(local);
>+					return result;
>+				}
>+			},
>+		markAsComparedEqualToNull =
>+		// markAsComparedEqualToNull DEFINITION START
>+		// start => prot. null
>+		// prot. non null => prot. null
>+		// prot. null => prot. null
>+		// pot. unknown => pot. n & prot. n
>+		// pot. non null => prot. null
>+		// pot. nn & prot. nn => prot. null
>+		// pot. nn & pot. un => pot. n & prot. n
>+		// pot. null => pot. n & prot. n
>+		// pot. n & prot. n => pot. n & prot. n
>+		// pot. n & pot. un => pot. n & prot. n
>+		// pot. n & pot. nn => pot. n & prot. n
>+		// def. unknown => def. null
>+		// def. non null => prot. null
>+		// def. null => def. null
>+		// markAsComparedEqualToNull DEFINITION END
>+			new TwoDimensionalTransformation("markAsComparedEqualToNull",
>+				new byte[][] {
>+				// markAsComparedEqualToNull INITIALIZER START
>+				{0x00,0x38},
>+				{0x04,0x34},
>+				{0x08,0x38},
>+				{0x0C,0x34},
>+				{0x10,0x34},
>+				{0x14,0x34},
>+				{0x18,0x34},
>+				{0x24,0x30},
>+				{0x28,0x38},
>+				{0x2C,0x38},
>+				{0x30,0x30},
>+				{0x34,0x34},
>+				{0x38,0x38},
>+				{0x3C,0x38},
>+				// markAsComparedEqualToNull INITIALIZER END
>+				}) {
>+			UnconditionalFlowInfo output(UnconditionalFlowInfo input, 
>+					TestLocalVariableBinding local) {
>+				UnconditionalFlowInfo result = (UnconditionalFlowInfo)input.copy();
>+				result.markAsComparedEqualToNull(local);
>+				return result;
>+			}
>+		},
>+		markAsDefinitelyNonNull = 
>+		// markAsDefinitelyNonNull DEFINITION START
>+		// start => def. non null
>+		// prot. non null => def. non null
>+		// prot. null => def. non null
>+		// pot. unknown => def. non null
>+		// pot. non null => def. non null
>+		// pot. nn & prot. nn => def. non null
>+		// pot. nn & pot. un => def. non null
>+		// pot. null => def. non null
>+		// pot. n & prot. n => def. non null
>+		// pot. n & pot. un => def. non null
>+		// pot. n & pot. nn => def. non null
>+		// def. unknown => def. non null
>+		// def. non null => def. non null
>+		// def. null => def. non null
>+		// markAsDefinitelyNonNull DEFINITION END
>+			new TwoDimensionalTransformation("markAsDefinitelyNonNull",
>+				new byte[][] {
>+				// markAsDefinitelyNonNull INITIALIZER START
>+				{0x00,0x28},
>+				{0x04,0x28},
>+				{0x08,0x28},
>+				{0x0C,0x28},
>+				{0x10,0x28},
>+				{0x14,0x28},
>+				{0x18,0x28},
>+				{0x24,0x28},
>+				{0x28,0x28},
>+				{0x2C,0x28},
>+				{0x30,0x28},
>+				{0x34,0x28},
>+				{0x38,0x28},
>+				{0x3C,0x28},
>+				// markAsDefinitelyNonNull INITIALIZER END
>+				}) {
>+			UnconditionalFlowInfo output(UnconditionalFlowInfo input, 
>+					TestLocalVariableBinding local) {
>+				UnconditionalFlowInfo result = (UnconditionalFlowInfo)input.copy();
>+				result.markAsDefinitelyNonNull(local);
>+				return result;
>+			}
>+		},
>+		markAsDefinitelyNull =
>+		// markAsDefinitelyNull DEFINITION START
>+		// start => def. null
>+		// prot. non null => def. null
>+		// prot. null => def. null
>+		// pot. unknown => def. null
>+		// pot. non null => def. null
>+		// pot. nn & prot. nn => def. null
>+		// pot. nn & pot. un => def. null
>+		// pot. null => def. null
>+		// pot. n & prot. n => def. null
>+		// pot. n & pot. un => def. null
>+		// pot. n & pot. nn => def. null
>+		// def. unknown => def. null
>+		// def. non null => def. null
>+		// def. null => def. null
>+		// markAsDefinitelyNull DEFINITION END
>+			// PREMATURE add 'catch rules'
>+			new TwoDimensionalTransformation("markAsDefinitelyNull",
>+				new byte[][] {
>+				// markAsDefinitelyNull INITIALIZER START
>+				{0x00,0x30},
>+				{0x04,0x30},
>+				{0x08,0x30},
>+				{0x0C,0x30},
>+				{0x10,0x30},
>+				{0x14,0x30},
>+				{0x18,0x30},
>+				{0x24,0x30},
>+				{0x28,0x30},
>+				{0x2C,0x30},
>+				{0x30,0x30},
>+				{0x34,0x30},
>+				{0x38,0x30},
>+				{0x3C,0x30},
>+				// markAsDefinitelyNull INITIALIZER END
>+				}) {
>+			UnconditionalFlowInfo output(UnconditionalFlowInfo input, 
>+					TestLocalVariableBinding local) {
>+				UnconditionalFlowInfo result = (UnconditionalFlowInfo)input.copy();
>+				result.markAsDefinitelyNull(local);
>+				return result;
>+			}
>+		},
>+		markAsDefinitelyUnknown =
>+		// markAsDefinitelyUnknown DEFINITION START
>+		// start => def. unknown
>+		// prot. non null => def. unknown
>+		// prot. null => def. unknown
>+		// pot. unknown => def. unknown
>+		// pot. non null => def. unknown
>+		// pot. nn & prot. nn => def. unknown
>+		// pot. nn & pot. un => def. unknown
>+		// pot. null => def. unknown
>+		// pot. n & prot. n => def. unknown
>+		// pot. n & pot. un => def. unknown
>+		// pot. n & pot. nn => def. unknown
>+		// def. unknown => def. unknown
>+		// def. non null => def. unknown
>+		// def. null => def. unknown
>+		// markAsDefinitelyUnknown DEFINITION END
>+			new TwoDimensionalTransformation("markAsDefinitelyUnknown",
>+				new byte[][] {
>+				// markAsDefinitelyUnknown INITIALIZER START
>+				{0x00,0x24},
>+				{0x04,0x24},
>+				{0x08,0x24},
>+				{0x0C,0x24},
>+				{0x10,0x24},
>+				{0x14,0x24},
>+				{0x18,0x24},
>+				{0x24,0x24},
>+				{0x28,0x24},
>+				{0x2C,0x24},
>+				{0x30,0x24},
>+				{0x34,0x24},
>+				{0x38,0x24},
>+				{0x3C,0x24},
>+				// markAsDefinitelyUnknown INITIALIZER END
>+				}) {
>+			UnconditionalFlowInfo output(UnconditionalFlowInfo input, 
>+					TestLocalVariableBinding local) {
>+				UnconditionalFlowInfo result = (UnconditionalFlowInfo)input.copy();
>+				result.markAsDefinitelyUnknown(local);
>+				return result;
>+			}
>+		},
>+		addInitializationsFrom =
>+		// addInitializationsFrom DEFINITION START
>+		// def. non null + def. non null => def. non null		
>+		// def. non null + def. null => def. null		
>+		// def. non null + def. unknown => def. unknown		
>+		// def. non null + pot. n & pot. nn => pot. n & pot. nn		
>+		// def. non null + pot. n & pot. un => pot. n & pot. nn		
>+		// def. non null + pot. n & prot. n => pot. n & prot. n		
>+		// def. non null + pot. nn & pot. un => def. unknown		
>+		// def. non null + pot. nn & prot. nn => def. non null		
>+		// def. non null + pot. non null => def. non null		
>+		// def. non null + pot. null => pot. n & pot. nn		
>+		// def. non null + pot. unknown => def. unknown // priv.	
>+		// def. non null + prot. non null => def. non null		
>+		// def. non null + prot. null => prot. null		
>+		// def. non null + start => def. non null		
>+		// def. null + def. non null => def. non null		
>+		// def. null + def. null => def. null		
>+		// def. null + def. unknown => def. unknown		
>+		// def. null + pot. n & pot. nn => pot. n & pot. nn		
>+		// def. null + pot. n & pot. un => pot. n & pot. un		
>+		// def. null + pot. n & prot. n => def. null		
>+		// def. null + pot. nn & pot. un => pot. n & pot. nn		
>+		// def. null + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// def. null + pot. non null => pot. n & pot. nn		
>+		// def. null + pot. null => def. null		
>+		// def. null + pot. unknown => pot. n & pot. un // pot. null privileged over def. unknown		
>+		// def. null + prot. non null => prot. non null		
>+		// def. null + prot. null => def. null		
>+		// def. null + start => def. null		
>+		// def. unknown + def. non null => def. non null		
>+		// def. unknown + def. null => def. null		
>+		// def. unknown + def. unknown => def. unknown		
>+		// def. unknown + pot. n & pot. nn => pot. n & pot. nn		
>+		// def. unknown + pot. n & pot. un => pot. n & pot. un	// we loose the def here, but we need the pot. null
>+		// def. unknown + pot. n & prot. n => def. null		
>+		// def. unknown + pot. nn & pot. un => def. unknown // priv.
>+		// def. unknown + pot. nn & prot. nn => def. non null		
>+		// def. unknown + pot. non null => def. unknown	// privileging over pot. nn & pot. un
>+		// def. unknown + pot. null => pot. n & pot. un
>+		// def. unknown + pot. unknown => def. unknown		
>+		// def. unknown + prot. non null => def. non null 		
>+		// def. unknown + prot. null => def. null		
>+		// def. unknown + start => def. unknown		
>+		// pot. n & pot. nn + def. non null => def. non null		
>+		// pot. n & pot. nn + def. null => def. null		
>+		// pot. n & pot. nn + def. unknown => def. unknown		
>+		// pot. n & pot. nn + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. n & prot. n => pot. n & prot. n		
>+		// pot. n & pot. nn + pot. nn & pot. un => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. n & pot. nn + pot. non null => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. null => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. unknown => pot. n & pot. nn		
>+		// pot. n & pot. nn + prot. non null => pot. nn & prot. nn		
>+		// pot. n & pot. nn + prot. null => pot. n & prot. n		
>+		// pot. n & pot. nn + start => pot. n & pot. nn		
>+		// pot. n & pot. un + def. non null => def. non null		
>+		// pot. n & pot. un + def. null => def. null		
>+		// pot. n & pot. un + def. unknown => def. unknown		
>+		// pot. n & pot. un + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & pot. un + pot. n & pot. un => pot. n & pot. un		
>+		// pot. n & pot. un + pot. n & prot. n => pot. n & prot. n		
>+		// pot. n & pot. un + pot. nn & pot. un => pot. n & pot. nn		
>+		// pot. n & pot. un + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. n & pot. un + pot. non null => pot. n & pot. nn		
>+		// pot. n & pot. un + pot. null => pot. n & pot. un		
>+		// pot. n & pot. un + pot. unknown => pot. n & pot. un		
>+		// pot. n & pot. un + prot. non null => pot. nn & prot. nn 		
>+		// pot. n & pot. un + prot. null => pot. n & prot. n		
>+		// pot. n & pot. un + start => pot. n & pot. un		
>+		// pot. n & prot. n + def. non null => def. non null		
>+		// pot. n & prot. n + def. null => def. null		
>+		// pot. n & prot. n + def. unknown => def. unknown		
>+		// pot. n & prot. n + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & prot. n + pot. n & pot. un => pot. n & pot. un		
>+		// pot. n & prot. n + pot. n & prot. n => pot. n & prot. n		
>+		// pot. n & prot. n + pot. nn & pot. un => pot. n & pot. nn		
>+		// pot. n & prot. n + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. n & prot. n + pot. non null => pot. n & pot. nn		
>+		// pot. n & prot. n + pot. null => pot. n & prot. n		
>+		// pot. n & prot. n + pot. unknown => pot. n & pot. un		
>+		// pot. n & prot. n + prot. non null => prot. non null		
>+		// pot. n & prot. n + prot. null => pot. n & prot. n		
>+		// pot. n & prot. n + start => pot. n & prot. n		
>+		// pot. nn & pot. un + def. non null => def. non null		
>+		// pot. nn & pot. un + def. null => def. null		
>+		// pot. nn & pot. un + def. unknown => def. unknown		
>+		// pot. nn & pot. un + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. n & prot. n => pot. n & prot. n		
>+		// pot. nn & pot. un + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. nn & pot. un + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. nn & pot. un + pot. non null => pot. nn & pot. un		
>+		// pot. nn & pot. un + pot. null => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. unknown => pot. nn & pot. un		
>+		// pot. nn & pot. un + prot. non null => pot. nn & prot. nn
>+		// pot. nn & pot. un + prot. null => pot. n & prot. n		
>+		// pot. nn & pot. un + start => pot. nn & pot. un		
>+		// pot. nn & prot. nn + def. non null => def. non null		
>+		// pot. nn & prot. nn + def. null => def. null		
>+		// pot. nn & prot. nn + def. unknown => def. unknown		
>+		// pot. nn & prot. nn + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. n & prot. n => pot. n & prot. n		
>+		// pot. nn & prot. nn + pot. nn & pot. un => pot. nn & pot. un
>+		// pot. nn & prot. nn + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + pot. non null => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + pot. null => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. unknown => pot. nn & pot. un
>+		// pot. nn & prot. nn + prot. non null => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + prot. null => prot. null		
>+		// pot. nn & prot. nn + start => pot. nn & prot. nn		
>+		// pot. non null + def. non null => def. non null		
>+		// pot. non null + def. null => def. null		
>+		// pot. non null + def. unknown => def. unknown		
>+		// pot. non null + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. non null + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. non null + pot. n & prot. n => pot. n & prot. n		
>+		// pot. non null + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. non null + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. non null + pot. non null => pot. non null		
>+		// pot. non null + pot. null => pot. n & pot. nn		
>+		// pot. non null + pot. unknown => pot. nn & pot. un		
>+		// pot. non null + prot. non null => pot. nn & prot. nn		
>+		// pot. non null + prot. null => prot. null		
>+		// pot. non null + start => pot. non null
>+		// pot. null + def. non null => def. non null		
>+		// pot. null + def. null => def. null		
>+		// pot. null + def. unknown => def. unknown		
>+		// pot. null + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. null + pot. n & pot. un => pot. n & pot. un		
>+		// pot. null + pot. n & prot. n => pot. n & prot. n		
>+		// pot. null + pot. nn & pot. un => pot. n & pot. nn		
>+		// pot. null + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. null + pot. non null => pot. n & pot. nn		
>+		// pot. null + pot. null => pot. null		
>+		// pot. null + pot. unknown => pot. n & pot. un		
>+		// pot. null + prot. non null => prot. non null		
>+		// pot. null + prot. null => pot. n & prot. n		
>+		// pot. null + start => pot. null		
>+		// pot. unknown + def. non null => def. non null
>+		// pot. unknown + def. null => def. null
>+		// pot. unknown + def. unknown => def. unknown
>+		// pot. unknown + pot. n & pot. nn => pot. n & pot. nn
>+		// pot. unknown + pot. n & pot. un => pot. n & pot. un
>+		// pot. unknown + pot. n & prot. n => pot. n & prot. n
>+		// pot. unknown + pot. nn & pot. un => pot. nn & pot. un
>+		// pot. unknown + pot. nn & prot. nn => pot. nn & prot. nn
>+		// pot. unknown + pot. non null => pot. nn & pot. un
>+		// pot. unknown + pot. null => pot. n & pot. un
>+		// pot. unknown + pot. unknown => pot. unknown
>+		// pot. unknown + prot. non null => pot. nn & prot. nn
>+		// pot. unknown + prot. null => pot. n & prot. n
>+		// pot. unknown + start => pot. unknown
>+		// prot. non null + def. non null => def. non null
>+		// prot. non null + def. null => def. null
>+		// prot. non null + def. unknown => def. unknown
>+		// prot. non null + pot. n & pot. nn => pot. n & pot. nn
>+		// prot. non null + pot. n & pot. un => pot. n & pot. un
>+		// prot. non null + pot. n & prot. n => pot. n & prot. n
>+		// prot. non null + pot. nn & pot. un => pot. nn & pot. un
>+		// prot. non null + pot. nn & prot. nn => pot. nn & prot. nn
>+		// prot. non null + pot. non null => pot. nn & prot. nn
>+		// prot. non null + pot. null => pot. null
>+		// prot. non null + pot. unknown => pot. unknown
>+		// prot. non null + prot. non null => prot. non null
>+		// prot. non null + prot. null => prot. null
>+		// prot. non null + start => prot. non null
>+		// prot. null + def. non null => def. non null
>+		// prot. null + def. null => def. null
>+		// prot. null + def. unknown => def. unknown
>+		// prot. null + pot. n & pot. nn => pot. n & pot. nn
>+		// prot. null + pot. n & pot. un => pot. n & pot. un
>+		// prot. null + pot. n & prot. n => pot. n & prot. n
>+		// prot. null + pot. nn & pot. un => pot. nn & pot. un
>+		// prot. null + pot. nn & prot. nn => pot. nn & prot. nn
>+		// prot. null + pot. non null => pot. non null
>+		// prot. null + pot. null => pot. n & prot. n
>+		// prot. null + pot. unknown => pot. unknown
>+		// prot. null + prot. non null => prot. non null
>+		// prot. null + prot. null => prot. null
>+		// prot. null + start => prot. null
>+		// start + def. non null => def. non null
>+		// start + def. null => def. null
>+		// start + def. unknown => def. unknown
>+		// start + pot. n & pot. nn => pot. n & pot. nn
>+		// start + pot. n & pot. un => pot. n & pot. un
>+		// start + pot. n & prot. n => pot. n & prot. n
>+		// start + pot. nn & pot. un => pot. nn & pot. un
>+		// start + pot. nn & prot. nn => pot. nn & prot. nn
>+		// start + pot. non null => pot. non null
>+		// start + pot. null => pot. null
>+		// start + pot. unknown => pot. unknown
>+		// start + prot. non null => prot. non null
>+		// start + prot. null => prot. null
>+		// start + start => start
>+		// addInitializationsFrom DEFINITION END
>+			new ThreeDimensionalTransformation("addInitializationsFrom",
>+				new byte[][] {
>+				// addInitializationsFrom INITIALIZER START
>+				{0x00,0x00,0x00},
>+				{0x00,0x04,0x04},
>+				{0x00,0x08,0x08},
>+				{0x00,0x0C,0x0C},
>+				{0x00,0x10,0x10},
>+				{0x00,0x14,0x14},
>+				{0x00,0x18,0x18},
>+				{0x00,0x24,0x24},
>+				{0x00,0x28,0x28},
>+				{0x00,0x2C,0x2C},
>+				{0x00,0x30,0x30},
>+				{0x00,0x34,0x34},
>+				{0x00,0x38,0x38},
>+				{0x00,0x3C,0x3C},
>+				{0x04,0x00,0x04},
>+				{0x04,0x04,0x04},
>+				{0x04,0x08,0x0C},
>+				{0x04,0x0C,0x0C},
>+				{0x04,0x10,0x14},
>+				{0x04,0x14,0x14},
>+				{0x04,0x18,0x18},
>+				{0x04,0x24,0x24},
>+				{0x04,0x28,0x28},
>+				{0x04,0x2C,0x2C},
>+				{0x04,0x30,0x30},
>+				{0x04,0x34,0x34},
>+				{0x04,0x38,0x34},
>+				{0x04,0x3C,0x2C},
>+				{0x08,0x00,0x08},
>+				{0x08,0x04,0x0C},
>+				{0x08,0x08,0x08},
>+				{0x08,0x0C,0x0C},
>+				{0x08,0x10,0x18},
>+				{0x08,0x14,0x18},
>+				{0x08,0x18,0x18},
>+				{0x08,0x24,0x24},
>+				{0x08,0x28,0x28},
>+				{0x08,0x2C,0x2C},
>+				{0x08,0x30,0x30},
>+				{0x08,0x34,0x34},
>+				{0x08,0x38,0x38},
>+				{0x08,0x3C,0x2C},
>+				{0x0C,0x00,0x0C},
>+				{0x0C,0x04,0x0C},
>+				{0x0C,0x08,0x0C},
>+				{0x0C,0x0C,0x0C},
>+				{0x0C,0x10,0x18},
>+				{0x0C,0x14,0x18},
>+				{0x0C,0x18,0x18},
>+				{0x0C,0x24,0x24},
>+				{0x0C,0x28,0x28},
>+				{0x0C,0x2C,0x2C},
>+				{0x0C,0x30,0x30},
>+				{0x0C,0x34,0x34},
>+				{0x0C,0x38,0x34},
>+				{0x0C,0x3C,0x2C},
>+				{0x10,0x00,0x10},
>+				{0x10,0x04,0x14},
>+				{0x10,0x08,0x18},
>+				{0x10,0x0C,0x18},
>+				{0x10,0x10,0x10},
>+				{0x10,0x14,0x14},
>+				{0x10,0x18,0x18},
>+				{0x10,0x24,0x24},
>+				{0x10,0x28,0x28},
>+				{0x10,0x2C,0x2C},
>+				{0x10,0x30,0x30},
>+				{0x10,0x34,0x34},
>+				{0x10,0x38,0x34},
>+				{0x10,0x3C,0x3C},
>+				{0x14,0x00,0x14},
>+				{0x14,0x04,0x14},
>+				{0x14,0x08,0x18},
>+				{0x14,0x0C,0x18},
>+				{0x14,0x10,0x14},
>+				{0x14,0x14,0x14},
>+				{0x14,0x18,0x18},
>+				{0x14,0x24,0x24},
>+				{0x14,0x28,0x28},
>+				{0x14,0x2C,0x2C},
>+				{0x14,0x30,0x30},
>+				{0x14,0x34,0x34},
>+				{0x14,0x38,0x34},
>+				{0x14,0x3C,0x2C},
>+				{0x18,0x00,0x18},
>+				{0x18,0x04,0x18},
>+				{0x18,0x08,0x18},
>+				{0x18,0x0C,0x18},
>+				{0x18,0x10,0x18},
>+				{0x18,0x14,0x18},
>+				{0x18,0x18,0x18},
>+				{0x18,0x24,0x24},
>+				{0x18,0x28,0x28},
>+				{0x18,0x2C,0x2C},
>+				{0x18,0x30,0x30},
>+				{0x18,0x34,0x34},
>+				{0x18,0x38,0x34},
>+				{0x18,0x3C,0x2C},
>+				{0x24,0x00,0x24},
>+				{0x24,0x04,0x24},
>+				{0x24,0x08,0x24},
>+				{0x24,0x0C,0x24},
>+				{0x24,0x10,0x14},
>+				{0x24,0x14,0x14},
>+				{0x24,0x18,0x18},
>+				{0x24,0x24,0x24},
>+				{0x24,0x28,0x28},
>+				{0x24,0x2C,0x28},
>+				{0x24,0x30,0x30},
>+				{0x24,0x34,0x30},
>+				{0x24,0x38,0x30},
>+				{0x24,0x3C,0x28},
>+				{0x28,0x00,0x28},
>+				{0x28,0x04,0x24},
>+				{0x28,0x08,0x28},
>+				{0x28,0x0C,0x24},
>+				{0x28,0x10,0x18},
>+				{0x28,0x14,0x18},
>+				{0x28,0x18,0x18},
>+				{0x28,0x24,0x24},
>+				{0x28,0x28,0x28},
>+				{0x28,0x2C,0x28},
>+				{0x28,0x30,0x30},
>+				{0x28,0x34,0x34},
>+				{0x28,0x38,0x38},
>+				{0x28,0x3C,0x28},
>+				{0x2C,0x00,0x2C},
>+				{0x2C,0x04,0x0C},
>+				{0x2C,0x08,0x2C},
>+				{0x2C,0x0C,0x0C},
>+				{0x2C,0x10,0x18},
>+				{0x2C,0x14,0x18},
>+				{0x2C,0x18,0x18},
>+				{0x2C,0x24,0x24},
>+				{0x2C,0x28,0x28},
>+				{0x2C,0x2C,0x2C},
>+				{0x2C,0x30,0x30},
>+				{0x2C,0x34,0x34},
>+				{0x2C,0x38,0x38},
>+				{0x2C,0x3C,0x2C},
>+				{0x30,0x00,0x30},
>+				{0x30,0x04,0x14},
>+				{0x30,0x08,0x18},
>+				{0x30,0x0C,0x18},
>+				{0x30,0x10,0x30},
>+				{0x30,0x14,0x14},
>+				{0x30,0x18,0x18},
>+				{0x30,0x24,0x24},
>+				{0x30,0x28,0x28},
>+				{0x30,0x2C,0x2C},
>+				{0x30,0x30,0x30},
>+				{0x30,0x34,0x30},
>+				{0x30,0x38,0x30},
>+				{0x30,0x3C,0x3C},
>+				{0x34,0x00,0x34},
>+				{0x34,0x04,0x14},
>+				{0x34,0x08,0x18},
>+				{0x34,0x0C,0x18},
>+				{0x34,0x10,0x34},
>+				{0x34,0x14,0x14},
>+				{0x34,0x18,0x18},
>+				{0x34,0x24,0x24},
>+				{0x34,0x28,0x28},
>+				{0x34,0x2C,0x2C},
>+				{0x34,0x30,0x30},
>+				{0x34,0x34,0x34},
>+				{0x34,0x38,0x34},
>+				{0x34,0x3C,0x3C},
>+				{0x38,0x00,0x38},
>+				{0x38,0x04,0x04},
>+				{0x38,0x08,0x08},
>+				{0x38,0x0C,0x0C},
>+				{0x38,0x10,0x34},
>+				{0x38,0x14,0x14},
>+				{0x38,0x18,0x18},
>+				{0x38,0x24,0x24},
>+				{0x38,0x28,0x28},
>+				{0x38,0x2C,0x2C},
>+				{0x38,0x30,0x30},
>+				{0x38,0x34,0x34},
>+				{0x38,0x38,0x38},
>+				{0x38,0x3C,0x3C},
>+				{0x3C,0x00,0x3C},
>+				{0x3C,0x04,0x04},
>+				{0x3C,0x08,0x2C},
>+				{0x3C,0x0C,0x0C},
>+				{0x3C,0x10,0x10},
>+				{0x3C,0x14,0x14},
>+				{0x3C,0x18,0x18},
>+				{0x3C,0x24,0x24},
>+				{0x3C,0x28,0x28},
>+				{0x3C,0x2C,0x2C},
>+				{0x3C,0x30,0x30},
>+				{0x3C,0x34,0x34},
>+				{0x3C,0x38,0x38},
>+				{0x3C,0x3C,0x3C},
>+				// addInitializationsFrom INITIALIZER END
>+				}) {
>+			UnconditionalFlowInfo output(UnconditionalFlowInfo input1, 
>+					UnconditionalFlowInfo input2) {
>+				return (UnconditionalFlowInfo) 
>+					input1.copy().addInitializationsFrom(input2);
>+			}
>+		},
>+		// addPotentialInitializationsFrom DEFINITION START
>+		// def. non null + def. non null => def. non null		
>+		// def. non null + def. null => pot. n & pot. nn		
>+		// def. non null + def. unknown => def. unknown		
>+		// def. non null + pot. n & pot. nn => pot. n & pot. nn		
>+		// def. non null + pot. n & pot. un => pot. n & pot. nn		
>+		// def. non null + pot. n & prot. n => pot. n & pot. nn		
>+		// def. non null + pot. nn & pot. un => def. unknown		
>+		// def. non null + pot. nn & prot. nn => def. non null		
>+		// def. non null + pot. non null => def. non null		
>+		// def. non null + pot. null => pot. n & pot. nn		
>+		// def. non null + pot. unknown => def. unknown		
>+		// def. non null + prot. non null => def. non null		
>+		// def. non null + prot. null => def. non null		
>+		// def. non null + start => def. non null		
>+		// def. null + def. non null => pot. n & pot. nn		
>+		// def. null + def. null => def. null		
>+		// def. null + def. unknown => pot. n & pot. un		
>+		// def. null + pot. n & pot. nn => pot. n & pot. nn		
>+		// def. null + pot. n & pot. un => pot. n & pot. un
>+		// def. null + pot. n & prot. n => def. null		
>+		// def. null + pot. nn & pot. un => pot. n & pot. nn		
>+		// def. null + pot. nn & prot. nn => pot. n & pot. nn		
>+		// def. null + pot. non null => pot. n & pot. nn		
>+		// def. null + pot. null => def. null		
>+		// def. null + pot. unknown => pot. n & pot. un		
>+		// def. null + prot. non null => def. null		
>+		// def. null + prot. null => def. null		
>+		// def. null + start => def. null
>+		// def. unknown + def. non null => def. unknown
>+		// def. unknown + def. null => pot. n & pot. un		
>+		// def. unknown + def. unknown => def. unknown		
>+		// def. unknown + pot. n & pot. nn => pot. n & pot. nn		
>+		// def. unknown + pot. n & pot. un => pot. n & pot. un		
>+		// def. unknown + pot. n & prot. n => pot. n & pot. un		
>+		// def. unknown + pot. nn & pot. un => def. unknown		
>+		// def. unknown + pot. nn & prot. nn => def. unknown
>+		// def. unknown + pot. non null => def. unknown
>+		// def. unknown + pot. null => pot. n & pot. un		
>+		// def. unknown + pot. unknown => def. unknown		
>+		// def. unknown + prot. non null => def. unknown		
>+		// def. unknown + prot. null => def. unknown		
>+		// def. unknown + start => def. unknown		
>+		// pot. n & pot. nn + def. non null => pot. n & pot. nn		
>+		// pot. n & pot. nn + def. null => pot. n & pot. nn		
>+		// pot. n & pot. nn + def. unknown => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. n & prot. n => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. nn & pot. un => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. nn & prot. nn => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. non null => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. null => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. unknown => pot. n & pot. nn		
>+		// pot. n & pot. nn + prot. non null => pot. n & pot. nn		
>+		// pot. n & pot. nn + prot. null => pot. n & pot. nn		
>+		// pot. n & pot. nn + start => pot. n & pot. nn		
>+		// pot. n & pot. un + def. non null => pot. n & pot. nn		
>+		// pot. n & pot. un + def. null => pot. n & pot. un		
>+		// pot. n & pot. un + def. unknown => pot. n & pot. un		
>+		// pot. n & pot. un + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & pot. un + pot. n & pot. un => pot. n & pot. un		
>+		// pot. n & pot. un + pot. n & prot. n => pot. n & pot. un		
>+		// pot. n & pot. un + pot. nn & pot. un => pot. n & pot. nn		
>+		// pot. n & pot. un + pot. nn & prot. nn => pot. n & pot. nn		
>+		// pot. n & pot. un + pot. non null => pot. n & pot. nn		
>+		// pot. n & pot. un + pot. null => pot. n & pot. un		
>+		// pot. n & pot. un + pot. unknown => pot. n & pot. un		
>+		// pot. n & pot. un + prot. non null => pot. n & pot. un		
>+		// pot. n & pot. un + prot. null => pot. n & pot. un		
>+		// pot. n & pot. un + start => pot. n & pot. un		
>+		// pot. n & prot. n + def. non null => pot. n & pot. nn		
>+		// pot. n & prot. n + def. null => pot. n & prot. n		
>+		// pot. n & prot. n + def. unknown => pot. n & pot. un		
>+		// pot. n & prot. n + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & prot. n + pot. n & pot. un => pot. n & pot. un		
>+		// pot. n & prot. n + pot. n & prot. n => pot. n & prot. n		
>+		// pot. n & prot. n + pot. nn & pot. un => pot. n & pot. nn		
>+		// pot. n & prot. n + pot. nn & prot. nn => pot. n & pot. nn		
>+		// pot. n & prot. n + pot. non null => pot. n & pot. nn		
>+		// pot. n & prot. n + pot. null => pot. n & prot. n		
>+		// pot. n & prot. n + pot. unknown => pot. n & pot. un		
>+		// pot. n & prot. n + prot. non null => pot. n & prot. n		
>+		// pot. n & prot. n + prot. null => pot. n & prot. n		
>+		// pot. n & prot. n + start => pot. n & prot. n		
>+		// pot. nn & pot. un + def. non null => pot. nn & pot. un		
>+		// pot. nn & pot. un + def. null => pot. n & pot. nn		
>+		// pot. nn & pot. un + def. unknown => pot. nn & pot. un		
>+		// pot. nn & pot. un + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. n & prot. n => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. nn & pot. un + pot. nn & prot. nn => pot. nn & pot. un		
>+		// pot. nn & pot. un + pot. non null => pot. nn & pot. un		
>+		// pot. nn & pot. un + pot. null => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. unknown => pot. nn & pot. un		
>+		// pot. nn & pot. un + prot. non null => pot. nn & pot. un		
>+		// pot. nn & pot. un + prot. null => pot. nn & pot. un		
>+		// pot. nn & pot. un + start => pot. nn & pot. un		
>+		// pot. nn & prot. nn + def. non null => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + def. null => pot. n & pot. nn		
>+		// pot. nn & prot. nn + def. unknown => pot. nn & pot. un
>+		// pot. nn & prot. nn + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. n & prot. n => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. nn & pot. un => pot. nn & pot. un	// see test1501
>+		// pot. nn & prot. nn + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + pot. non null => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + pot. null => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. unknown => pot. nn & pot. un
>+		// pot. nn & prot. nn + prot. non null => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + prot. null => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + start => pot. nn & prot. nn		
>+		// pot. non null + def. non null => pot. non null		
>+		// pot. non null + def. null => pot. n & pot. nn		
>+		// pot. non null + def. unknown => pot. nn & pot. un		
>+		// pot. non null + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. non null + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. non null + pot. n & prot. n => pot. n & pot. nn		
>+		// pot. non null + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. non null + pot. nn & prot. nn => pot. non null		
>+		// pot. non null + pot. non null => pot. non null		
>+		// pot. non null + pot. null => pot. n & pot. nn		
>+		// pot. non null + pot. unknown => pot. nn & pot. un		
>+		// pot. non null + prot. non null => pot. non null		
>+		// pot. non null + prot. null => pot. non null		
>+		// pot. non null + start => pot. non null		
>+		// pot. null + def. non null => pot. n & pot. nn		
>+		// pot. null + def. null => pot. null		
>+		// pot. null + def. unknown => pot. n & pot. un		
>+		// pot. null + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. null + pot. n & pot. un => pot. n & pot. un		
>+		// pot. null + pot. n & prot. n => pot. null		
>+		// pot. null + pot. nn & pot. un => pot. n & pot. nn		
>+		// pot. null + pot. nn & prot. nn => pot. n & pot. nn		
>+		// pot. null + pot. non null => pot. n & pot. nn		
>+		// pot. null + pot. null => pot. null		
>+		// pot. null + pot. unknown => pot. n & pot. un		
>+		// pot. null + prot. non null => pot. null		
>+		// pot. null + prot. null => pot. null		
>+		// pot. null + start => pot. null		
>+		// pot. unknown + def. non null => pot. nn & pot. un		
>+		// pot. unknown + def. null => pot. n & pot. un		
>+		// pot. unknown + def. unknown => pot. unknown		
>+		// pot. unknown + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. unknown + pot. n & pot. un => pot. n & pot. un		
>+		// pot. unknown + pot. n & prot. n => pot. n & pot. un		
>+		// pot. unknown + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. unknown + pot. nn & prot. nn => pot. nn & pot. un		
>+		// pot. unknown + pot. non null => pot. nn & pot. un		
>+		// pot. unknown + pot. null => pot. n & pot. un		
>+		// pot. unknown + pot. unknown => pot. unknown		
>+		// pot. unknown + prot. non null => pot. unknown		
>+		// pot. unknown + prot. null => pot. unknown		
>+		// pot. unknown + start => pot. unknown		
>+		// prot. non null + def. non null => pot. nn & prot. nn
>+		// prot. non null + def. null => pot. null		
>+		// prot. non null + def. unknown => pot. unknown
>+		// prot. non null + pot. n & pot. nn => pot. n & pot. nn		
>+		// prot. non null + pot. n & pot. un => pot. n & pot. un		
>+		// prot. non null + pot. n & prot. n => pot. null		
>+		// prot. non null + pot. nn & pot. un => pot. nn & pot. un	// see test1500
>+		// prot. non null + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// prot. non null + pot. non null => pot. nn & prot. nn		
>+		// prot. non null + pot. null => pot. null		
>+		// prot. non null + pot. unknown => pot. unknown
>+		// prot. non null + prot. non null => prot. non null		
>+		// prot. non null + prot. null => prot. non null
>+		// prot. non null + start => prot. non null		
>+		// prot. null + def. non null => pot. non null		
>+		// prot. null + def. null => pot. n & prot. n		
>+		// prot. null + def. unknown => pot. unknown		
>+		// prot. null + pot. n & pot. nn => pot. n & pot. nn		
>+		// prot. null + pot. n & pot. un => pot. n & pot. un		
>+		// prot. null + pot. n & prot. n => pot. n & prot. n		
>+		// prot. null + pot. nn & pot. un => pot. nn & pot. un		
>+		// prot. null + pot. nn & prot. nn => pot. non null		
>+		// prot. null + pot. non null => pot. non null		
>+		// prot. null + pot. null => pot. n & prot. n		
>+		// prot. null + pot. unknown => pot. unknown		
>+		// prot. null + prot. non null => prot. null
>+		// prot. null + prot. null => prot. null		
>+		// prot. null + start => prot. null		
>+		// start + def. non null => pot. non null		
>+		// start + def. null => pot. null		
>+		// start + def. unknown => pot. unknown		
>+		// start + pot. n & pot. nn => pot. n & pot. nn		
>+		// start + pot. n & pot. un => pot. n & pot. un		
>+		// start + pot. n & prot. n => pot. null		
>+		// start + pot. nn & pot. un => pot. nn & pot. un		
>+		// start + pot. nn & prot. nn => pot. non null		
>+		// start + pot. non null => pot. non null		
>+		// start + pot. null => pot. null		
>+		// start + pot. unknown => pot. unknown		
>+		// start + prot. non null => start // PREMATURE may need to be tainted?
>+		// start + prot. null => start		// PREMATURE may need to be tainted?
>+		// start + start => start
>+		// addPotentialInitializationsFrom DEFINITION END
>+		addPotentialInitializationsFrom =
>+			new ThreeDimensionalTransformation("addPotentialInitializationsFrom",
>+				new byte[][] {
>+				// addPotentialInitializationsFrom INITIALIZER START
>+				{0x00,0x00,0x00},
>+				{0x00,0x04,0x04},
>+				{0x00,0x08,0x08},
>+				{0x00,0x0C,0x0C},
>+				{0x00,0x10,0x10},
>+				{0x00,0x14,0x14},
>+				{0x00,0x18,0x18},
>+				{0x00,0x24,0x04},
>+				{0x00,0x28,0x08},
>+				{0x00,0x2C,0x08},
>+				{0x00,0x30,0x10},
>+				{0x00,0x34,0x10},
>+				{0x00,0x38,0x00},
>+				{0x00,0x3C,0x00},
>+				{0x04,0x00,0x04},
>+				{0x04,0x04,0x04},
>+				{0x04,0x08,0x0C},
>+				{0x04,0x0C,0x0C},
>+				{0x04,0x10,0x14},
>+				{0x04,0x14,0x14},
>+				{0x04,0x18,0x18},
>+				{0x04,0x24,0x04},
>+				{0x04,0x28,0x0C},
>+				{0x04,0x2C,0x0C},
>+				{0x04,0x30,0x14},
>+				{0x04,0x34,0x14},
>+				{0x04,0x38,0x04},
>+				{0x04,0x3C,0x04},
>+				{0x08,0x00,0x08},
>+				{0x08,0x04,0x0C},
>+				{0x08,0x08,0x08},
>+				{0x08,0x0C,0x0C},
>+				{0x08,0x10,0x18},
>+				{0x08,0x14,0x18},
>+				{0x08,0x18,0x18},
>+				{0x08,0x24,0x0C},
>+				{0x08,0x28,0x08},
>+				{0x08,0x2C,0x08},
>+				{0x08,0x30,0x18},
>+				{0x08,0x34,0x18},
>+				{0x08,0x38,0x08},
>+				{0x08,0x3C,0x08},
>+				{0x0C,0x00,0x0C},
>+				{0x0C,0x04,0x0C},
>+				{0x0C,0x08,0x0C},
>+				{0x0C,0x0C,0x0C},
>+				{0x0C,0x10,0x18},
>+				{0x0C,0x14,0x18},
>+				{0x0C,0x18,0x18},
>+				{0x0C,0x24,0x0C},
>+				{0x0C,0x28,0x0C},
>+				{0x0C,0x2C,0x0C},
>+				{0x0C,0x30,0x18},
>+				{0x0C,0x34,0x18},
>+				{0x0C,0x38,0x0C},
>+				{0x0C,0x3C,0x0C},
>+				{0x10,0x00,0x10},
>+				{0x10,0x04,0x14},
>+				{0x10,0x08,0x18},
>+				{0x10,0x0C,0x18},
>+				{0x10,0x10,0x10},
>+				{0x10,0x14,0x14},
>+				{0x10,0x18,0x18},
>+				{0x10,0x24,0x14},
>+				{0x10,0x28,0x18},
>+				{0x10,0x2C,0x18},
>+				{0x10,0x30,0x10},
>+				{0x10,0x34,0x10},
>+				{0x10,0x38,0x10},
>+				{0x10,0x3C,0x10},
>+				{0x14,0x00,0x14},
>+				{0x14,0x04,0x14},
>+				{0x14,0x08,0x18},
>+				{0x14,0x0C,0x18},
>+				{0x14,0x10,0x14},
>+				{0x14,0x14,0x14},
>+				{0x14,0x18,0x18},
>+				{0x14,0x24,0x14},
>+				{0x14,0x28,0x18},
>+				{0x14,0x2C,0x18},
>+				{0x14,0x30,0x14},
>+				{0x14,0x34,0x14},
>+				{0x14,0x38,0x14},
>+				{0x14,0x3C,0x14},
>+				{0x18,0x00,0x18},
>+				{0x18,0x04,0x18},
>+				{0x18,0x08,0x18},
>+				{0x18,0x0C,0x18},
>+				{0x18,0x10,0x18},
>+				{0x18,0x14,0x18},
>+				{0x18,0x18,0x18},
>+				{0x18,0x24,0x18},
>+				{0x18,0x28,0x18},
>+				{0x18,0x2C,0x18},
>+				{0x18,0x30,0x18},
>+				{0x18,0x34,0x18},
>+				{0x18,0x38,0x18},
>+				{0x18,0x3C,0x18},
>+				{0x24,0x00,0x24},
>+				{0x24,0x04,0x24},
>+				{0x24,0x08,0x24},
>+				{0x24,0x0C,0x24},
>+				{0x24,0x10,0x14},
>+				{0x24,0x14,0x14},
>+				{0x24,0x18,0x18},
>+				{0x24,0x24,0x24},
>+				{0x24,0x28,0x24},
>+				{0x24,0x2C,0x24},
>+				{0x24,0x30,0x14},
>+				{0x24,0x34,0x14},
>+				{0x24,0x38,0x24},
>+				{0x24,0x3C,0x24},
>+				{0x28,0x00,0x28},
>+				{0x28,0x04,0x24},
>+				{0x28,0x08,0x28},
>+				{0x28,0x0C,0x24},
>+				{0x28,0x10,0x18},
>+				{0x28,0x14,0x18},
>+				{0x28,0x18,0x18},
>+				{0x28,0x24,0x24},
>+				{0x28,0x28,0x28},
>+				{0x28,0x2C,0x28},
>+				{0x28,0x30,0x18},
>+				{0x28,0x34,0x18},
>+				{0x28,0x38,0x28},
>+				{0x28,0x3C,0x28},
>+				{0x2C,0x00,0x2C},
>+				{0x2C,0x04,0x0C},
>+				{0x2C,0x08,0x2C},
>+				{0x2C,0x0C,0x0C},
>+				{0x2C,0x10,0x18},
>+				{0x2C,0x14,0x18},
>+				{0x2C,0x18,0x18},
>+				{0x2C,0x24,0x0C},
>+				{0x2C,0x28,0x2C},
>+				{0x2C,0x2C,0x2C},
>+				{0x2C,0x30,0x18},
>+				{0x2C,0x34,0x18},
>+				{0x2C,0x38,0x2C},
>+				{0x2C,0x3C,0x2C},
>+				{0x30,0x00,0x30},
>+				{0x30,0x04,0x14},
>+				{0x30,0x08,0x18},
>+				{0x30,0x0C,0x18},
>+				{0x30,0x10,0x30},
>+				{0x30,0x14,0x14},
>+				{0x30,0x18,0x18},
>+				{0x30,0x24,0x14},
>+				{0x30,0x28,0x18},
>+				{0x30,0x2C,0x18},
>+				{0x30,0x30,0x30},
>+				{0x30,0x34,0x30},
>+				{0x30,0x38,0x30},
>+				{0x30,0x3C,0x30},
>+				{0x34,0x00,0x34},
>+				{0x34,0x04,0x14},
>+				{0x34,0x08,0x18},
>+				{0x34,0x0C,0x18},
>+				{0x34,0x10,0x34},
>+				{0x34,0x14,0x14},
>+				{0x34,0x18,0x18},
>+				{0x34,0x24,0x14},
>+				{0x34,0x28,0x18},
>+				{0x34,0x2C,0x18},
>+				{0x34,0x30,0x34},
>+				{0x34,0x34,0x34},
>+				{0x34,0x38,0x34},
>+				{0x34,0x3C,0x34},
>+				{0x38,0x00,0x38},
>+				{0x38,0x04,0x04},
>+				{0x38,0x08,0x08},
>+				{0x38,0x0C,0x0C},
>+				{0x38,0x10,0x34},
>+				{0x38,0x14,0x14},
>+				{0x38,0x18,0x18},
>+				{0x38,0x24,0x04},
>+				{0x38,0x28,0x08},
>+				{0x38,0x2C,0x08},
>+				{0x38,0x30,0x34},
>+				{0x38,0x34,0x34},
>+				{0x38,0x38,0x38},
>+				{0x38,0x3C,0x38},
>+				{0x3C,0x00,0x3C},
>+				{0x3C,0x04,0x04},
>+				{0x3C,0x08,0x2C},
>+				{0x3C,0x0C,0x0C},
>+				{0x3C,0x10,0x10},
>+				{0x3C,0x14,0x14},
>+				{0x3C,0x18,0x18},
>+				{0x3C,0x24,0x04},
>+				{0x3C,0x28,0x2C},
>+				{0x3C,0x2C,0x2C},
>+				{0x3C,0x30,0x10},
>+				{0x3C,0x34,0x10},
>+				{0x3C,0x38,0x3C},
>+				{0x3C,0x3C,0x3C},
>+				// addPotentialInitializationsFrom INITIALIZER END
>+				}) {
>+			UnconditionalFlowInfo output(UnconditionalFlowInfo input1, 
>+					UnconditionalFlowInfo input2) {
>+				return (UnconditionalFlowInfo) 
>+					input1.copy().addPotentialInitializationsFrom(input2);
>+			}
>+		},
>+		mergedWith =
>+		// mergedWith DEFINITION START
>+		// def. non null + def. non null => def. non null		
>+		// def. non null + def. null => pot. n & pot. nn
>+		// def. null + def. null => def. null		
>+		// def. unknown + def. non null => def. unknown
>+		// def. unknown + def. null => pot. n & pot. un // pot. n priv. over def. unknown
>+		// def. unknown + def. unknown => def. unknown		
>+		// pot. n & pot. nn + def. non null => pot. n & pot. nn		
>+		// pot. n & pot. nn + def. null => pot. n & pot. nn		
>+		// pot. n & pot. nn + def. unknown => pot. n & pot. nn		
>+		// pot. n & pot. nn + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & pot. un + def. non null => pot. n & pot. nn		
>+		// pot. n & pot. un + def. null => pot. n & pot. un		
>+		// pot. n & pot. un + def. unknown => pot. n & pot. un		
>+		// pot. n & pot. un + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & pot. un + pot. n & pot. un => pot. n & pot. un		
>+		// pot. n & prot. n + def. non null => pot. n & pot. nn		
>+		// pot. n & prot. n + def. null => pot. n & prot. n
>+		// pot. n & prot. n + def. unknown => pot. n & pot. un		
>+		// pot. n & prot. n + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. n & prot. n + pot. n & pot. un => pot. n & pot. un		
>+		// pot. n & prot. n + pot. n & prot. n => pot. n & prot. n		
>+		// pot. nn & pot. un + def. non null => pot. nn & pot. un		
>+		// pot. nn & pot. un + def. null => pot. n & pot. nn		
>+		// pot. nn & pot. un + def. unknown => pot. nn & pot. un		
>+		// pot. nn & pot. un + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. n & prot. n => pot. n & pot. nn		
>+		// pot. nn & pot. un + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. nn & pot. un + pot. null => pot. n & pot. nn		
>+		// pot. nn & prot. nn + def. non null => pot. nn & prot. nn
>+		// pot. nn & prot. nn + def. null => pot. n & pot. nn		
>+		// pot. nn & prot. nn + def. unknown => pot. nn & pot. un		
>+		// pot. nn & prot. nn + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. n & prot. n => pot. n & pot. nn		
>+		// pot. nn & prot. nn + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. nn & prot. nn + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// pot. nn & prot. nn + pot. null => pot. n & pot. nn		
>+		// pot. non null + def. non null => pot. non null		
>+		// pot. non null + def. null => pot. n & pot. nn		
>+		// pot. non null + def. unknown => pot. nn & pot. un		
>+		// pot. non null + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. non null + pot. n & pot. un => pot. n & pot. nn		
>+		// pot. non null + pot. n & prot. n => pot. n & pot. nn		
>+		// pot. non null + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. non null + pot. nn & prot. nn => pot. non null		
>+		// pot. non null + pot. non null => pot. non null		
>+		// pot. non null + pot. null => pot. n & pot. nn		
>+		// pot. null + def. non null => pot. n & pot. nn		
>+		// pot. null + def. null => pot. null		
>+		// pot. null + def. unknown => pot. n & pot. un		
>+		// pot. null + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. null + pot. n & pot. un => pot. n & pot. un		
>+		// pot. null + pot. n & prot. n => pot. null		
>+		// pot. null + pot. null => pot. null		
>+		// pot. unknown + def. non null => pot. nn & pot. un		
>+		// pot. unknown + def. null => pot. n & pot. un		
>+		// pot. unknown + def. unknown => pot. unknown		
>+		// pot. unknown + pot. n & pot. nn => pot. n & pot. nn		
>+		// pot. unknown + pot. n & pot. un => pot. n & pot. un		
>+		// pot. unknown + pot. n & prot. n => pot. n & pot. un		
>+		// pot. unknown + pot. nn & pot. un => pot. nn & pot. un		
>+		// pot. unknown + pot. nn & prot. nn => pot. nn & pot. un		
>+		// pot. unknown + pot. non null => pot. nn & pot. un		
>+		// pot. unknown + pot. null => pot. n & pot. un		
>+		// pot. unknown + pot. unknown => pot. unknown		
>+		// prot. non null + def. non null => pot. nn & prot. nn		
>+		// prot. non null + def. null => pot. null		
>+		// prot. non null + def. unknown => def. unknown // test726
>+		// prot. non null + pot. n & pot. nn => pot. n & pot. nn		
>+		// prot. non null + pot. n & pot. un => pot. n & pot. un		
>+		// prot. non null + pot. n & prot. n => pot. null		
>+		// prot. non null + pot. nn & pot. un => pot. nn & pot. un		
>+		// prot. non null + pot. nn & prot. nn => pot. nn & prot. nn		
>+		// prot. non null + pot. non null => pot. non null		
>+		// prot. non null + pot. null => pot. null		
>+		// prot. non null + pot. unknown => pot. unknown		
>+		// prot. non null + prot. non null => prot. non null		
>+		// prot. non null + prot. null => pot. null // PREMATURE use tainted instead
>+		// prot. null + def. non null => pot. non null		 // PREMATURE should become tainted null & pot. nn... not really, depends on the three way merge... or even on the conditions that got there (pb with no contrib prot. null branch)
>+		// prot. null + def. null => pot. n & prot. n		
>+		// prot. null + def. unknown => pot. unknown	// PREMATURE possibly wrong, but no test case yet	
>+		// prot. null + pot. n & pot. nn => pot. n & pot. nn		
>+		// prot. null + pot. n & pot. un => pot. n & pot. un		
>+		// prot. null + pot. n & prot. n => pot. n & prot. n		
>+		// prot. null + pot. nn & pot. un => pot. n & pot. nn
>+		// prot. null + pot. nn & prot. nn => pot. n & pot. nn
>+		// prot. null + pot. non null => pot. n & pot. nn
>+		// prot. null + pot. null => pot. null		
>+		// prot. null + pot. unknown => pot. unknown // PREMATURE possibly wrong, but no test case yet		
>+		// prot. null + prot. null => prot. null		
>+		// start + def. non null => pot. non null		
>+		// start + def. null => pot. null		
>+		// start + def. unknown => pot. unknown		
>+		// start + pot. n & pot. nn => pot. n & pot. nn		
>+		// start + pot. n & pot. un => pot. n & pot. un		
>+		// start + pot. n & prot. n => pot. null		
>+		// start + pot. nn & pot. un => pot. nn & pot. un		
>+		// start + pot. nn & prot. nn => pot. non null		
>+		// start + pot. non null => pot. non null		
>+		// start + pot. null => pot. null		
>+		// start + pot. unknown => pot. unknown		
>+		// start + prot. non null => start // PREMATURE should it taint?		
>+		// start + prot. null => start		
>+		// start + start => start		
>+		// mergedWith DEFINITION END
>+			new SymmetricalThreeDimensionalTransformation("mergedWith",
>+				new byte[][] {
>+				// mergedWith INITIALIZER START
>+				{0x00,0x00,0x00},
>+				{0x00,0x04,0x04},
>+				{0x00,0x08,0x08},
>+				{0x00,0x0C,0x0C},
>+				{0x00,0x10,0x10},
>+				{0x00,0x14,0x14},
>+				{0x00,0x18,0x18},
>+				{0x00,0x24,0x04},
>+				{0x00,0x28,0x08},
>+				{0x00,0x2C,0x08},
>+				{0x00,0x30,0x10},
>+				{0x00,0x34,0x10},
>+				{0x00,0x38,0x00},
>+				{0x00,0x3C,0x00},
>+				{0x04,0x04,0x04},
>+				{0x04,0x08,0x0C},
>+				{0x04,0x0C,0x0C},
>+				{0x04,0x10,0x14},
>+				{0x04,0x14,0x14},
>+				{0x04,0x18,0x18},
>+				{0x04,0x24,0x04},
>+				{0x04,0x28,0x0C},
>+				{0x04,0x2C,0x0C},
>+				{0x04,0x30,0x14},
>+				{0x04,0x34,0x14},
>+				{0x08,0x08,0x08},
>+				{0x08,0x0C,0x0C},
>+				{0x08,0x10,0x18},
>+				{0x08,0x14,0x18},
>+				{0x08,0x18,0x18},
>+				{0x08,0x24,0x0C},
>+				{0x08,0x28,0x08},
>+				{0x08,0x2C,0x08},
>+				{0x08,0x30,0x18},
>+				{0x08,0x34,0x18},
>+				{0x0C,0x0C,0x0C},
>+				{0x0C,0x10,0x18},
>+				{0x0C,0x14,0x18},
>+				{0x0C,0x18,0x18},
>+				{0x0C,0x24,0x0C},
>+				{0x0C,0x28,0x0C},
>+				{0x0C,0x30,0x18},
>+				{0x0C,0x34,0x18},
>+				{0x10,0x10,0x10},
>+				{0x10,0x14,0x14},
>+				{0x10,0x18,0x18},
>+				{0x10,0x24,0x14},
>+				{0x10,0x28,0x18},
>+				{0x10,0x30,0x10},
>+				{0x10,0x34,0x10},
>+				{0x14,0x14,0x14},
>+				{0x14,0x18,0x18},
>+				{0x14,0x24,0x14},
>+				{0x14,0x28,0x18},
>+				{0x14,0x30,0x14},
>+				{0x18,0x18,0x18},
>+				{0x18,0x24,0x18},
>+				{0x18,0x28,0x18},
>+				{0x18,0x30,0x18},
>+				{0x24,0x24,0x24},
>+				{0x24,0x28,0x24},
>+				{0x24,0x30,0x14},
>+				{0x28,0x28,0x28},
>+				{0x28,0x30,0x18},
>+				{0x2C,0x0C,0x0C},
>+				{0x2C,0x10,0x18},
>+				{0x2C,0x14,0x18},
>+				{0x2C,0x18,0x18},
>+				{0x2C,0x24,0x0C},
>+				{0x2C,0x28,0x2C},
>+				{0x2C,0x2C,0x2C},
>+				{0x2C,0x30,0x18},
>+				{0x2C,0x34,0x18},
>+				{0x30,0x30,0x30},
>+				{0x34,0x14,0x14},
>+				{0x34,0x18,0x18},
>+				{0x34,0x24,0x14},
>+				{0x34,0x28,0x18},
>+				{0x34,0x30,0x34},
>+				{0x34,0x34,0x34},
>+				{0x38,0x04,0x04},
>+				{0x38,0x08,0x18},
>+				{0x38,0x0C,0x18},
>+				{0x38,0x10,0x10},
>+				{0x38,0x14,0x14},
>+				{0x38,0x18,0x18},
>+				{0x38,0x24,0x04},
>+				{0x38,0x28,0x08},
>+				{0x38,0x2C,0x18},
>+				{0x38,0x30,0x34},
>+				{0x38,0x34,0x34},
>+				{0x38,0x38,0x38},
>+				{0x3C,0x04,0x04},
>+				{0x3C,0x08,0x08},
>+				{0x3C,0x0C,0x0C},
>+				{0x3C,0x10,0x10},
>+				{0x3C,0x14,0x14},
>+				{0x3C,0x18,0x18},
>+				{0x3C,0x24,0x24},
>+				{0x3C,0x28,0x2C},
>+				{0x3C,0x2C,0x2C},
>+				{0x3C,0x30,0x10},
>+				{0x3C,0x34,0x10},
>+				{0x3C,0x38,0x10},
>+				{0x3C,0x3C,0x3C},
>+				// mergedWith INITIALIZER END
>+				}) {
>+			UnconditionalFlowInfo output(UnconditionalFlowInfo input1, 
>+					UnconditionalFlowInfo input2) {
>+				return input1.copy().mergedWith(input2);
>+			}
>+		},
>+		newNullInfoRegistry = 
>+		// newNullInfoRegistry DEFINITION START
>+		// start => start
>+		// prot. non null => start
>+		// prot. null => start
>+		// pot. unknown => start
>+		// pot. non null => start
>+		// pot. nn & prot. nn => start
>+		// pot. nn & pot. un => start
>+		// pot. null => start
>+		// pot. n & prot. n => start
>+		// pot. n & pot. un => start
>+		// pot. n & pot. nn => start
>+		// def. unknown => pot. unknown
>+		// def. non null => pot. non null
>+		// def. null => pot. null
>+		// newNullInfoRegistry DEFINITION END
>+			new CreationalTransformation("newNullInfoRegistry",
>+				new byte[][] {
>+				// newNullInfoRegistry INITIALIZER START
>+				{0x00,0x00},
>+				{0x04,0x00},
>+				{0x08,0x00},
>+				{0x0C,0x00},
>+				{0x10,0x00},
>+				{0x14,0x00},
>+				{0x18,0x00},
>+				{0x24,0x04},
>+				{0x28,0x08},
>+				{0x2C,0x00},
>+				{0x30,0x10},
>+				{0x34,0x00},
>+				{0x38,0x00},
>+				{0x3C,0x00},
>+				// newNullInfoRegistry INITIALIZER END
>+				}) {
>+			UnconditionalFlowInfo output(UnconditionalFlowInfo input) {
>+				return NullInfoRegistryTestHarness.
>+					testNullInfoRegistry((UnconditionalFlowInfoTestHarness) input);
>+			}
>+		};		
>+	public static final Transformation[] transformations = {
>+			markAsComparedEqualToNonNull,
>+			markAsComparedEqualToNull,
>+			markAsDefinitelyNonNull,
>+			markAsDefinitelyNull,
>+			markAsDefinitelyUnknown,
>+			addInitializationsFrom,
>+			addPotentialInitializationsFrom,
>+			mergedWith,
>+			newNullInfoRegistry
>+		};
>+public abstract static class Transformation {
>+	public String name; 
>+	String	definitionStartMarker, definitionEndMarker, 
>+		initializerStartMarker,	initializerEndMarker;
>+	int dimension;
>+	public Map initializedTransitions, computedTransitions;
>+		// PREMATURE limit public access
>+	int failuresNb; // transient
>+// PREMATURE complete the test coverage for NullInfoRegistry (need to consider several classes
>+// 		 of transitions so as to avoid considering NullInfoRegistry states and 
>+//			 UnconditionalFlowInfo states into the same pool; moreover, cross classes 
>+//			 transformations exist.
>+Transformation(String name) {
>+	this.name = name;
>+	this.definitionStartMarker = "// " + name + " " + CodeAnalysis.definitionStartMarker;
>+	this.definitionEndMarker = "// " + name + " " + CodeAnalysis.definitionEndMarker;
>+	this.initializerStartMarker = "// " + name + " " + CodeAnalysis.initializerStartMarker;
>+	this.initializerEndMarker = "// " + name + " " + CodeAnalysis.initializerEndMarker;
>+}
>+abstract State[] computeOutputs(State[] inputs);
>+abstract void hydrate();
>+void fail() {
>+	if (this.failuresNb == 0) {
>+		System.out.println(this.name + " failures: ");
>+	}
>+	this.failuresNb++;
>+}
>+abstract void printTruthTables(File outputDirectory);
>+
>+static boolean checkContiguity(String a, String b) {
>+	int aLength;
>+	if ((aLength = a.length()) != b.length()) {
>+		System.out.println("inappropriate string length: " + a + " vs " + b);
>+		return false;
>+	}
>+	int status = 0;
>+	for (int i = 0; i < aLength; i++) {
>+		if (a.charAt(i) != b.charAt(i)) {
>+			status++;
>+		} 
>+	}
>+	if (status != 1) {
>+		System.out.println("non contiguous strings: " + a + " vs " + b);
>+		return false;
>+	}
>+	return true;
>+}
>+
>+final static String truthTableRowNames[] = { // need a specific order to yield simplication opportunities
>+		"000000",
>+		"000100",
>+		"001100",
>+		"001000",
>+		"011000",
>+		"011100",
>+		"010100",
>+		"010000",
>+		"110000",
>+		"110100",
>+		"111100",
>+		"111000",
>+		"101000",
>+		"101100",
>+		"100100",
>+		"100000",		
>+		// PREMATURE cheated to group first four bits... reconsider
>+		"000001",
>+		"000011",
>+		"000010",
>+		"000110",
>+		"000111",
>+		"000101",
>+		"001101",
>+		"001111",
>+		"001110",
>+		"001010",
>+		"001011",
>+		"001001",
>+		"011001",
>+		"011011",
>+		"011010",
>+		"011110",
>+		"011111",
>+		"011101",
>+		"010101",
>+		"010111",
>+		"010110",
>+		"010010",
>+		"010011",
>+		"010001",
>+		"110001",
>+		"110011",
>+		"110010",
>+		"110110",
>+		"110111",
>+		"110101",
>+		"111101",
>+		"111111",
>+		"111110",
>+		"111010",
>+		"111011",
>+		"111001",
>+		"101001",
>+		"101011",
>+		"101010",
>+		"101110",
>+		"101111",
>+		"101101",
>+		"100101",
>+		"100111",
>+		"100110",
>+		"100010",
>+		"100011",
>+		"100001",
>+	};
>+
>+private static Map ranksForStates;
>+int rankForState(State state) {
>+	int length;
>+	if (ranksForStates == null) {
>+		ranksForStates = new HashMap(length = truthTableRowNames.length);
>+		for (int i = 0; i < length; i++) {
>+			ranksForStates.put(truthTableRowNames[i], new Integer(i));
>+		}
>+	}
>+	Integer rank;
>+	if ((rank = (Integer) ranksForStates.get(state.printableBitsField)) != null) {
>+		return rank.intValue();
>+	}
>+	return 0;
>+}
>+
>+abstract void reinitializeFromComments(BufferedReader input, BufferedWriter output);
>+abstract void reinitializeFromComputedValues(BufferedReader input, BufferedWriter output,
>+	State[] consideredStates);
>+/**
>+ * Run a test against UnconditionalFlowInfo by comparing the transitions as memorized
>+ * into the initializer and as delivered by UnconditionalFlowInfo for various positions
>+ * in the encoding and return the number of failures.
>+ * @return the number of failures, that is 0 if the results match the expectations
>+ */
>+abstract int test();
>+}
>+abstract static class TwoDimensionalTransformation extends Transformation {
>+TwoDimensionalTransformation(String name, byte[][] transitions) {
>+	super(name);
>+	this.dimension = 2;
>+	int length;
>+	this.initializedTransitions = new HashMap(length = transitions.length);
>+	State input1;
>+	for (int i = 0; i < length; i++) {
>+		if (transitions[i].length != 2) {
>+			throw new IllegalArgumentException("transitions should have two entries");
>+		}
>+		input1 = State.states[transitions[i][0]]; // array out of bounds exception if broken
>+		if (this.initializedTransitions.get(input1) != null) {
>+			throw new IllegalArgumentException("duplicate entry");
>+		}
>+		this.initializedTransitions.put(input1, State.states[transitions[i][1]]);
>+	}
>+}
>+State[] computeOutputs(State[] inputs) {
>+	Map resultAccumulator = new HashMap(State.stateMaxValue + 1);
>+	hydrate(); // pre-compute all possible combinations, then cache them
>+	for (int i = 0, inputsLength = inputs.length; i < inputsLength; i++) {
>+		resultAccumulator.put(this.computedTransitions.get(inputs[i]), null);
>+	}
>+	int length;
>+	State[] result = new State[length = resultAccumulator.size()];
>+	Iterator resultIterator = resultAccumulator.keySet().iterator();
>+	for (int j = 0; j < length; j++) {
>+		result[j] = (State) resultIterator.next();
>+	}
>+	return result;	
>+}
>+void hydrate() {
>+	if (this.computedTransitions == null) {
>+		State input, output;
>+		this.computedTransitions = new HashMap(State.stateMaxValue + 1);
>+		for (int i = 0, length = State.states.length; i < length; i++) {
>+			output = ((UnconditionalFlowInfoTestHarness)
>+				output(UnconditionalFlowInfoTestHarness.
>+					testUnconditionalFlowInfo(input = State.states[i]), 
>+						TestLocalVariableBinding.local0)).asState();
>+			if (input.symbolic && !output.symbolic) {
>+				System.err.println(this.name + " generates non-symbolic state " +
>+					output + " upon entry: " + input);
>+			}
>+			this.computedTransitions.put(input, output);
>+		}
>+	}
>+}
>+abstract UnconditionalFlowInfo output(UnconditionalFlowInfo input, TestLocalVariableBinding local);
>+
>+void printTruthTables(File outputDirectory) {
>+	try {
>+		String outputFileName = outputDirectory.getPath() + File.separator + this.name + ".txt";
>+		PrintWriter out = new PrintWriter(new FileOutputStream(
>+				new File(outputFileName)));
>+		System.out.println("Printing " + outputFileName);
>+		out.println("======================================================");
>+		out.println("Truth table for " + this.name );
>+		char truthValues[][] = new char[State.statesNb][State.stateWidth];
>+		int row, column;
>+		for (row = 0; row < State.statesNb; row++) {
>+			for (column = 0; column < State.stateWidth; column++) {
>+				truthValues[row][column] = '.';
>+			}
>+		}
>+		boolean keepRow[] = new boolean[State.statesNb];
>+		Iterator i1 = this.initializedTransitions.entrySet().iterator();
>+		while (i1.hasNext()) {
>+			Map.Entry transitionsSet = (Map.Entry) i1.next();
>+			State input = (State) transitionsSet.getKey();
>+			keepRow[row = rankForState(input)] = true;
>+			for (int bit = 0; bit < State.stateWidth; bit++) {
>+				truthValues[row][bit] = 
>+					((State) transitionsSet.getValue()).printableBitsField.charAt(bit);
>+			}
>+		}
>+		StringBuffer line;
>+		line = new StringBuffer(140);
>+		line.append(" ");
>+		for (int i = 1; i <= State.stateWidth; i++) {
>+			line.append(i);
>+			line.append(' ');
>+		}
>+		out.println(line);
>+		line = new StringBuffer(140);
>+		line.append(" ---------------------");
>+		out.println(line);
>+		for (row = 0; row < State.statesNb; row++) {
>+			if (keepRow[row]) {
>+				line = new StringBuffer(140);
>+				line.append(truthTableRowNames[row]);
>+				line.append(" | ");
>+				for (int i = 0; i < State.stateWidth; i++) {
>+					line.append(truthValues[row][i]);
>+					line.append(' ');
>+				}
>+				out.println(line);
>+			}
>+		}
>+		out.println("======================================================");
>+		out.flush();
>+		out.close();
>+	}
>+	catch (Throwable t) {
>+		// PREMATURE improve error handling
>+	}
>+}
>+
>+void reinitializeFromComments(BufferedReader input, BufferedWriter output) {
>+	String line, tab = "";
>+	int cursor;
>+	char c;
>+	this.initializedTransitions = new HashMap(State.stateMaxValue);
>+	int lineNumber = 0;
>+	try {
>+		while ((line = input.readLine()) != null) {
>+			lineNumber++;
>+			output.write(line);
>+			output.write('\n');
>+			if ((cursor = line.indexOf(definitionStartMarker)) != -1) {
>+				// check the line format
>+				boolean reachedStart = true;
>+				for (int i = 0; i < cursor; i++) {
>+					if (!Character.isWhitespace(c = line.charAt(i))) {
>+						reachedStart = false;
>+						break;
>+					}
>+					else {
>+						tab += c;
>+					}
>+				}
>+				if (reachedStart) {
>+					while ((line = input.readLine()) != null && 
>+							line.indexOf(definitionEndMarker) == -1) {
>+						lineNumber++;
>+						final int 
>+							start = 0,
>+							commentStart = 1,
>+							commentFound = 2,
>+							firstState = 10,
>+							firstStateWS = 11,
>+							implies = 20,
>+							impliesWS = 21,
>+							secondState = 30,
>+							secondStateWS = 31, // caveat, multi-state
>+							error = 99;
>+						int state = start, 
>+							firstStateStart = 0, firstStateEnd = 0, firstStateWhiteSpace = 0,
>+							secondStateStart = 0, secondStateEnd = 0, secondStateWhiteSpace = 0;
>+						char current;
>+						analysis: for (int i = 0, length = line.length(); i < length; i++) {
>+							current = line.charAt(i);
>+							switch (state) {
>+								case start:
>+									if (current == '/') {
>+										state = commentStart;
>+									} else if (! Character.isWhitespace(current)) {
>+										state = error;
>+										break analysis;
>+									} 
>+									break;
>+								case commentStart:
>+									if (current == '/') {
>+										state = commentFound;
>+									} else {
>+										state = error;
>+										break analysis;
>+									}
>+									break;
>+								case commentFound:
>+									if (! Character.isWhitespace(current)) {
>+										firstStateStart = firstStateEnd = i;
>+										state = firstState;
>+									}
>+									break;
>+								case firstState:
>+									if (Character.isWhitespace(current)) {
>+										state = firstStateWS;
>+										firstStateWhiteSpace = 1;
>+									} else {
>+										firstStateEnd++;
>+									}
>+									break;
>+								case firstStateWS:
>+									if (current == '=') {
>+										state = implies;
>+									} else if (Character.isWhitespace(current)) {
>+										firstStateWhiteSpace++;
>+									} else {
>+										state = firstState;
>+										firstStateEnd += firstStateWhiteSpace + 1;
>+									}
>+									break;
>+								case implies:
>+									if (current == '>') {
>+										state = impliesWS;
>+									} else {
>+										state = error;
>+										break analysis;
>+									}
>+									break;
>+								case impliesWS:
>+									if (! Character.isWhitespace(current)) {
>+										secondStateStart = secondStateEnd = i;
>+										state = secondState;
>+									}
>+									break;
>+								case secondState:
>+									if (current == '/') {
>+										break analysis;
>+									} else if (Character.isWhitespace(current)) {
>+										state = secondStateWS;
>+										secondStateWhiteSpace = 1;
>+									} else {
>+										secondStateEnd++;
>+									}
>+									break;
>+								case secondStateWS:
>+									if (current == '/') {
>+										state = secondState;
>+										break analysis;
>+									} else if (current == 'C') {
>+										state++;
>+									} else if (Character.isWhitespace(current)) {
>+										secondStateWhiteSpace++;
>+									} else {
>+										state = secondState;
>+										secondStateEnd += secondStateWhiteSpace + 1;
>+									}
>+									break;
>+								case secondStateWS + 1:
>+									if (current == '/') {
>+										state = secondState;
>+										break analysis;
>+									} else if (current == 'H') {
>+										state++;
>+									} else {
>+										state = secondState;
>+										secondStateEnd += secondStateWhiteSpace + 2;
>+									}
>+									break;
>+								case secondStateWS + 2:
>+									if (current == '/') {
>+										state = secondState;
>+										break analysis;
>+									} else if (current == 'E') {
>+										state++;
>+									} else {
>+										state = secondState;
>+										secondStateEnd += secondStateWhiteSpace + 3;
>+									}
>+									break;
>+								case secondStateWS + 3:
>+									if (current == '/') {
>+										state = secondState;
>+										break analysis;
>+									} else if (current == 'C') {
>+										state++;
>+									} else {
>+										state = secondState;
>+										secondStateEnd += secondStateWhiteSpace + 4;
>+									}
>+									break;
>+								case secondStateWS + 4:
>+									if (current == '/' || current == 'K') {
>+										state = secondState;
>+										break analysis;
>+									} else {
>+										state = secondState;
>+										secondStateEnd += secondStateWhiteSpace + 5;
>+									}
>+									break;
>+									
>+							}
>+						}
>+						if (state == error || state < secondState) {
>+							System.err.println("Could not interpret comment definition"); // PREMATURE improve diagnostic
>+						} else {
>+							if (state > secondStateWS) {
>+								secondStateEnd += (state - secondState);
>+							}
>+							String stateName;
>+							State first, second;
>+							if ((first = State.fromSymbolicName(
>+										stateName = line.substring(firstStateStart, firstStateEnd + 1)))
>+									== null) {
>+								System.err.println("Could not find state: " + stateName); // PREMATURE improve diagnostic
>+							}
>+							if ((second = State.fromSymbolicName(
>+										stateName = line.substring(secondStateStart, secondStateEnd + 1)))
>+									== null) {
>+								System.err.println("Could not find state: " + stateName); // PREMATURE improve diagnostic
>+							}
>+							if (first != null && second != null) {
>+								if (this.initializedTransitions.get(first) != null) {
>+									System.err.println("Line " + lineNumber + ": Skipping duplicate entry for state: " + first); // PREMATURE improve diagnostic
>+								} else {
>+									this.initializedTransitions.put(first, second);
>+								}
>+							}
>+						}
>+						output.write(line);
>+						output.write('\n');
>+					}
>+					Iterator firsts = State.symbolicStates();
>+					State first;
>+					while (firsts.hasNext()) {
>+						first = (State) firsts.next();
>+						if (this.initializedTransitions.get(first) == null) {
>+								System.err.println("Adding missing transition for state: " + first);
>+								output.write(tab);
>+								output.write("// ");
>+								output.write(first.toString());
>+								output.write(" => start\t\t CHECK\n");
>+						}
>+					}
>+				}
>+				output.write(tab + definitionEndMarker + "\n");
>+			}
>+			if (line != null && (cursor = line.indexOf(initializerStartMarker)) != -1) {
>+				// check the line format
>+				boolean reachedStart = true;
>+				tab = "";
>+				for (int i = 0; i < cursor; i++) {
>+					if (!Character.isWhitespace(c = line.charAt(i))) {
>+						reachedStart = false;
>+						break;
>+					}
>+					else {
>+						tab += c;
>+					}
>+				}
>+				if (reachedStart) {
>+					while ((line = input.readLine()) != null && 
>+							line.indexOf(initializerEndMarker) == -1) {
>+						// loop
>+					}
>+					SortedMap sorted = new TreeMap(this.initializedTransitions);
>+					Iterator transitions = sorted.entrySet().iterator();
>+					Map.Entry transition;
>+					while (transitions.hasNext()) {
>+						transition = (Map.Entry) transitions.next();
>+						output.write(tab);
>+						output.write('{');
>+						output.write(((State)transition.getKey()).hexString);
>+						output.write(',');
>+						output.write(((State)transition.getValue()).hexString);
>+						output.write("},");
>+						output.write('\n');
>+					}
>+					output.write(tab + initializerEndMarker + "\n");
>+				}
>+			}
>+		}
>+		output.flush();
>+	} catch (IOException e) {
>+		throw new RuntimeException(e);
>+	}
>+}
>+
>+void reinitializeFromComputedValues(BufferedReader input, BufferedWriter output,
>+		State[] consideredStates) {
>+	String line, tab = "";
>+	int cursor;
>+	char c;
>+	State result;
>+	try {
>+		while ((line = input.readLine()) != null) {
>+			output.write(line);
>+			output.write('\n');
>+			if ((cursor = line.indexOf(definitionStartMarker)) != -1) {
>+				// check the line format
>+				boolean reachedStart = true;
>+				for (int i = 0; i < cursor; i++) {
>+					if (!Character.isWhitespace(c = line.charAt(i))) {
>+						reachedStart = false;
>+						break;
>+					}
>+					else {
>+						tab += c;
>+					}
>+				}
>+				if (reachedStart) {
>+					while ((line = input.readLine()) != null && 
>+							line.indexOf(definitionEndMarker) == -1) {
>+						// loop
>+					}
>+					int i, length;
>+					for (i = 0, length = consideredStates.length; i < length; i++) {
>+						output.write(tab);
>+						output.write("// ");
>+						output.write(consideredStates[i].name);
>+						output.write(" => ");
>+						output.write(
>+							(result = (State) this.computedTransitions.get(consideredStates[i])).name);
>+						if (!result.symbolic ||
>+								result != this.initializedTransitions.get(consideredStates[i])) {
>+							output.write("\t\t CHECK");
>+						}
>+						output.write('\n');
>+					}
>+					output.write(tab + definitionEndMarker + "\n");
>+				}
>+			}
>+			if (line != null && (cursor = line.indexOf(initializerStartMarker)) != -1) {
>+				// check the line format
>+				boolean reachedStart = true;
>+				tab = "";
>+				for (int i = 0; i < cursor; i++) {
>+					if (!Character.isWhitespace(c = line.charAt(i))) {
>+						reachedStart = false;
>+						break;
>+					}
>+					else {
>+						tab += c;
>+					}
>+				}
>+				if (reachedStart) {
>+					while ((line = input.readLine()) != null && 
>+							line.indexOf(initializerEndMarker) == -1) {
>+						// loop
>+					}
>+					int i, length;
>+					for (i = 0, length = consideredStates.length; i < length; i++) {
>+						output.write(tab);
>+						output.write('{');
>+						output.write(consideredStates[i].hexString);
>+						output.write(',');
>+						output.write(
>+							((State) this.computedTransitions.get(consideredStates[i])).hexString);
>+						output.write("},");
>+						output.write('\n');
>+					}
>+					output.write(tab + initializerEndMarker + "\n");
>+				}
>+			}
>+		}
>+		output.flush();
>+	} catch (IOException e) {
>+		throw new RuntimeException(e);
>+	}
>+}
>+int test() {
>+	Iterator transitions = this.initializedTransitions.entrySet().iterator();
>+	State input, expectedOutput, effectiveOutput;
>+	Map.Entry transition;
>+	this.failuresNb = 0; // reset
>+	while (transitions.hasNext()) {
>+		transition = (Map.Entry) transitions.next();
>+		input = (State) transition.getKey();
>+		expectedOutput = (State) transition.getValue();
>+		effectiveOutput = ((UnconditionalFlowInfoTestHarness) 
>+			output(UnconditionalFlowInfoTestHarness.
>+				testUnconditionalFlowInfo(input), 
>+					TestLocalVariableBinding.local0)).asState();
>+		if (effectiveOutput != expectedOutput) {
>+			fail();
>+			System.out.println("\t\t" + input.printableBitsField + 
>+				" => " + effectiveOutput.printableBitsField + 
>+				" instead of: " + expectedOutput.printableBitsField);
>+		}
>+	}
>+	transitions = this.initializedTransitions.entrySet().iterator();
>+	while (transitions.hasNext()) {
>+		transition = (Map.Entry) transitions.next();
>+		input = (State) transition.getKey();
>+		expectedOutput = (State) transition.getValue();
>+		effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+				output(UnconditionalFlowInfoTestHarness.
>+					testUnconditionalFlowInfo(input, 64), 
>+						TestLocalVariableBinding.local64)).asState(64);
>+		if (effectiveOutput != expectedOutput) {
>+			fail();
>+			System.out.println("\t\t" + input.printableBitsField + 
>+				" => " + effectiveOutput.printableBitsField + 
>+				" (64) instead of: " + expectedOutput.printableBitsField);
>+		}
>+		if (input == State.start) {
>+			effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+				output(UnconditionalFlowInfoTestHarness.
>+					testUnconditionalFlowInfo(expectedOutput),
>+						TestLocalVariableBinding.local64)).asState(64);
>+			if (effectiveOutput != expectedOutput) {
>+				fail();
>+				System.out.println("\t\t" + input.printableBitsField + 
>+					" => " + effectiveOutput.printableBitsField + 
>+					" (zero 64) instead of: " + expectedOutput.printableBitsField);
>+			}
>+		}
>+	}
>+	transitions = this.initializedTransitions.entrySet().iterator();
>+	while (transitions.hasNext()) {
>+		transition = (Map.Entry) transitions.next();
>+		input = (State) transition.getKey();
>+		if (input == State.start) {
>+			expectedOutput = (State) transition.getValue();
>+			effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+				output(UnconditionalFlowInfoTestHarness.
>+					testUnconditionalFlowInfo(expectedOutput, 64),
>+						TestLocalVariableBinding.local128)).asState(128);
>+			if (effectiveOutput != expectedOutput) {
>+				fail();
>+				System.out.println("\t\t" + input.printableBitsField + 
>+					" => " + effectiveOutput.printableBitsField + 
>+					" (zero 128) instead of: " + expectedOutput.printableBitsField);
>+			}
>+		}
>+	}
>+	return this.failuresNb;
>+}
>+}
>+abstract static class CreationalTransformation extends TwoDimensionalTransformation {
>+CreationalTransformation(String name, byte[][] transitions) {
>+	super(name, transitions);
>+}
>+void hydrate() {
>+	if (this.computedTransitions == null) {
>+		State input, output;
>+		this.computedTransitions = new HashMap(State.stateMaxValue + 1);
>+		for (int i = 0, length = State.states.length; i < length; i++) {
>+			output = ((NullInfoRegistryTestHarness)
>+				output(UnconditionalFlowInfoTestHarness.
>+					testUnconditionalFlowInfo(input = State.states[i]), 
>+						TestLocalVariableBinding.local0)).asState();
>+			if (input.symbolic && !output.symbolic) {
>+				System.err.println(this.name + " generates non-symbolic state " +
>+					output + " upon entry: " + input);
>+			}
>+			this.computedTransitions.put(input, output);
>+		}
>+	}
>+}
>+UnconditionalFlowInfo output(UnconditionalFlowInfo input, TestLocalVariableBinding local) {
>+	return output(input);
>+}
>+abstract UnconditionalFlowInfo output(UnconditionalFlowInfo input);
>+int test() {
>+	Iterator transitions = this.initializedTransitions.entrySet().iterator();
>+	State input, expectedOutput, effectiveOutput;
>+	Map.Entry transition;
>+	this.failuresNb = 0; // reset
>+	while (transitions.hasNext()) {
>+		transition = (Map.Entry) transitions.next();
>+		input = (State) transition.getKey();
>+		expectedOutput = (State) transition.getValue();
>+		effectiveOutput = ((NullInfoRegistryTestHarness) 
>+			output(UnconditionalFlowInfoTestHarness.
>+				testUnconditionalFlowInfo(input), 
>+					TestLocalVariableBinding.local0)).asState();
>+		if (effectiveOutput != expectedOutput) {
>+			fail();
>+			System.out.println("\t\t" + input.printableBitsField + 
>+				" => " + effectiveOutput.printableBitsField + 
>+				" instead of: " + expectedOutput.printableBitsField);
>+		}
>+	}
>+	transitions = this.initializedTransitions.entrySet().iterator();
>+	while (transitions.hasNext()) {
>+		transition = (Map.Entry) transitions.next();
>+		input = (State) transition.getKey();
>+		expectedOutput = (State) transition.getValue();
>+		effectiveOutput = ((NullInfoRegistryTestHarness)
>+				output(UnconditionalFlowInfoTestHarness.
>+					testUnconditionalFlowInfo(input, 64))).asState(64);
>+		if (effectiveOutput != expectedOutput) {
>+			fail();
>+			System.out.println("\t\t" + input.printableBitsField + 
>+				" => " + effectiveOutput.printableBitsField + 
>+				" (64) instead of: " + expectedOutput.printableBitsField);
>+		}
>+	}
>+	return this.failuresNb;
>+}
>+}
>+public abstract static class ThreeDimensionalTransformation extends Transformation {
>+ThreeDimensionalTransformation(String name) {
>+	super(name);
>+	this.dimension = 3;
>+}
>+ThreeDimensionalTransformation(String name, byte[][] transitions) {
>+	super(name);
>+	this.dimension = 3;
>+	int length;
>+	this.initializedTransitions = new HashMap(length = transitions.length);
>+	State input1, input2;
>+	for (int i = 0; i < length; i++) {
>+		if (transitions[i].length != 3) {
>+			throw new IllegalArgumentException("transitions should have three entries");
>+		}
>+		input1 = State.states[transitions[i][0]]; // array out of bounds exception if broken
>+		input2 = State.states[transitions[i][1]];
>+		Map transitionsForInput1 = (Map) this.initializedTransitions.get(input1);
>+		if (transitionsForInput1 == null) {
>+			transitionsForInput1 = new HashMap(length);
>+			this.initializedTransitions.put(input1, transitionsForInput1);
>+		}
>+		if (transitionsForInput1.get(input2) != null) {
>+			throw new IllegalArgumentException("duplicate entry");
>+		}
>+		transitionsForInput1.put(input2, State.states[transitions[i][2]]);
>+	}
>+}
>+State[] computeOutputs(State[] inputs) {
>+	Map resultAccumulator = new HashMap(State.stateMaxValue + 1);
>+	hydrate(); // pre-compute all possible combinations, then cache them
>+	for (int i = 0, inputsLength = inputs.length; i < inputsLength; i++) {
>+		for (int i2 = 0; i2 < inputsLength; i2++) {
>+			resultAccumulator.put(
>+				((Map) this.computedTransitions.get(inputs[i])).get(inputs[i2]), null);
>+		}
>+	}
>+	int length;
>+	State[] result = new State[length = resultAccumulator.size()];
>+	Iterator resultIterator = resultAccumulator.keySet().iterator();
>+	for (int j = 0; j < length; j++) {
>+		result[j] = (State) resultIterator.next();
>+	}
>+	return result;	
>+}
>+void hydrate() {
>+	if (this.computedTransitions == null) {
>+		State input1, input2, output;
>+		this.computedTransitions = new HashMap(State.stateMaxValue + 1);
>+		Map entry;
>+		for (int i = 0, length = State.states.length; i < length; i++) {
>+			entry = new HashMap(State.stateMaxValue + 1);
>+			this.computedTransitions.put(input1 = State.states[i], entry);
>+			for (int j = 0; j < length; j++) {
>+				output = ((UnconditionalFlowInfoTestHarness)
>+					output(UnconditionalFlowInfoTestHarness.
>+						testUnconditionalFlowInfo(input1),
>+						UnconditionalFlowInfoTestHarness.
>+						testUnconditionalFlowInfo(input2 = State.states[j]))).asState();
>+				if (input1.symbolic && input2.symbolic && !output.symbolic) {
>+					System.err.println(this.name + " generates non-symbolic state " +
>+						output + " upon entry: " + input1 + " + " + input2);
>+				}
>+				entry.put(input2, output);
>+			}
>+		}
>+	}	
>+}
>+abstract UnconditionalFlowInfo output(UnconditionalFlowInfo input1, UnconditionalFlowInfo input2);
>+void printDefinitions(BufferedWriter output, State[] consideredStates, String tab)
>+		throws IOException {
>+	int i, j, length;
>+	State result;
>+	for (i = 0, length = consideredStates.length; i < length; i++) {
>+		for (j = 0; j < length; j++) {
>+			output.write(tab);
>+			output.write("// ");
>+			output.write(consideredStates[i].name);
>+			output.write(" + ");
>+			output.write(consideredStates[j].name);
>+			output.write(" => ");
>+			output.write(
>+				(result = (State)
>+					((Map) this.computedTransitions.get(consideredStates[i])).get(consideredStates[j])).name);
>+			if (!result.symbolic ||
>+				result != this.initializedTransitions.get(consideredStates[i])) {
>+				output.write("\t\t CHECK");
>+			}
>+			output.write('\n');
>+		}
>+	}
>+}
>+void printInitializers(BufferedWriter output, State[] consideredStates, String tab)
>+		throws IOException {
>+	int i, j, length;
>+	for (i = 0, length = consideredStates.length; i < length; i++) {
>+		for (j = 0; j < length; j++) {
>+			output.write(tab);
>+			output.write('{');
>+			output.write(consideredStates[i].hexString);
>+			output.write(',');
>+			output.write(consideredStates[j].hexString);
>+			output.write(',');
>+			output.write(
>+				((State)
>+					((Map) this.computedTransitions.get(consideredStates[i])).get(consideredStates[j])).hexString);
>+			output.write("},");
>+			output.write('\n');
>+		}
>+				}
>+}
>+void printMissingEntries(BufferedWriter output, String tab) throws IOException {
>+	Iterator firsts = State.symbolicStates(), seconds;
>+	State first, second;
>+	Map transitions;
>+	while (firsts.hasNext()) {
>+		first = (State) firsts.next();
>+		seconds = State.symbolicStates();
>+		if ((transitions = (Map) this.initializedTransitions.get(first))
>+				== null) {
>+			while (seconds.hasNext()) {
>+				second = (State) seconds.next();
>+				System.err.println("Adding missing transition for states (" + first + ", " + second + ")");
>+				output.write(tab);
>+				output.write("// ");
>+				output.write(first.toString());
>+				output.write(" + ");
>+				output.write(second.toString());
>+				output.write(" => start\t\t CHECK\n");
>+			}
>+		} else {
>+			while (seconds.hasNext()) {
>+				second = (State) seconds.next();
>+				if (transitions.get(second) == null) {
>+					System.err.println("Adding missing transition for states (" + first + ", " + second + ")");
>+					output.write(tab);
>+					output.write("// ");
>+					output.write(first.toString());
>+					output.write(" + ");
>+					output.write(second.toString());
>+					output.write(" => start\t\t CHECK\n");
>+				}
>+			}
>+		}
>+	}
>+}
>+void printTruthTables(File outputDirectory) {
>+	for (int bit = 1; bit <= State.stateWidth; bit++) {
>+		try {
>+			String outputFileName = outputDirectory.getPath() + File.separator + this.name + "_" + bit + ".txt";
>+			PrintWriter out = new PrintWriter(new FileOutputStream(
>+					new File(outputFileName)));
>+			System.out.println("Printing " + outputFileName);
>+			out.println("======================================================");
>+			out.println("Truth table for " + this.name + " null bit " + bit);
>+			char truthValues[][] = new char[State.statesNb][State.statesNb];
>+			int row, column;
>+			for (row = 0; row < State.statesNb; row++) {
>+				for (column = 0; column < State.statesNb; column++) {
>+					truthValues[row][column] = '.';
>+				}
>+			}
>+			if (false) { // checking row names
>+				boolean gotProblem = false;
>+				if (truthTableRowNames.length > State.statesNb) {
>+					System.out.println("row names table contains too many rows");
>+					gotProblem = true;
>+				}
>+				else if (truthTableRowNames.length < State.statesNb) {
>+					System.out.println("row names table contains too few rows");
>+					gotProblem = true;
>+				}
>+				Map check = new HashMap(State.statesNb);
>+				for (row = 0; row < truthTableRowNames.length; row++) {
>+					if (check.containsKey(truthTableRowNames[row])) {
>+						System.out.println("duplicate row: " + truthTableRowNames[row]);
>+						gotProblem = true;
>+					}
>+					else {
>+						check.put(truthTableRowNames[row], null);
>+					}
>+					if (row > 0 && !checkContiguity(truthTableRowNames[row - 1], truthTableRowNames[row])) {
>+						gotProblem = true;
>+					}
>+				}
>+		//		assertFalse("invalid rows table", gotProblem);
>+			}
>+			boolean keepRow[] = new boolean[State.statesNb], 
>+				keepColumn[] = new boolean[State.statesNb];
>+			Iterator i1 = this.initializedTransitions.entrySet().iterator();
>+			while (i1.hasNext()) {
>+				Map.Entry transitionsSet = (Map.Entry) i1.next();
>+				State first = (State) transitionsSet.getKey();
>+				Iterator i2 = ((Map) transitionsSet.getValue()).entrySet().iterator();
>+				while (i2.hasNext()) {
>+					Map.Entry transition = (Map.Entry) i2.next();
>+					mark(truthValues, keepRow, keepColumn, rankForState(first),
>+							rankForState((State) transition.getKey()),
>+							((State) transition.getValue()).printableBitsField.charAt(bit - 1));
>+				}
>+			}
>+			for (row = 0; row < State.statesNb; row += 2) {
>+				if (keepRow[row]) {
>+					keepRow[row + 1] = true;
>+				}
>+				else if (keepRow[row + 1]) {
>+					keepRow[row] = true;
>+				}
>+				if (keepColumn[row]) {
>+					keepColumn[row + 1] = true;
>+				}
>+				else if (keepColumn[row + 1]) {
>+					keepColumn[row] = true;
>+				}
>+			}
>+			StringBuffer line;
>+			for (int i = 0; i < State.stateWidth; i++) {
>+				line = new StringBuffer(140);
>+				line.append(" ");
>+				for (column = 0; column < State.statesNb; column++) {
>+					if (keepColumn[column]) {
>+						line.append(truthTableRowNames[column].charAt(i));
>+						line.append(' ');
>+					}
>+				}
>+				out.println(line);
>+			}
>+			line = new StringBuffer(140);
>+			line.append(" --");
>+			for (column = 0; column < State.statesNb; column++) {
>+				if (keepColumn[column]) {
>+					line.append('-');
>+					line.append('-');
>+				}
>+			}
>+			out.println(line);
>+			for (row = 0; row < State.statesNb; row++) {
>+				if (keepRow[row]) {
>+					line = new StringBuffer(140);
>+					line.append(truthTableRowNames[row]);
>+					line.append(" | ");
>+					for (column = 0; column < State.statesNb; column++) {
>+						if (keepColumn[column]) {
>+							line.append(truthValues[row][column]);
>+							line.append(' ');
>+						}
>+					}
>+					out.println(line);
>+				}
>+			}
>+			out.println("======================================================");
>+			out.flush();
>+			out.close();
>+		}
>+		catch (Throwable t) {
>+			// PREMATURE improve error handling
>+		}
>+	}
>+}
>+
>+void mark(char truthValues[][], boolean keepRow[], boolean keepColumn[],
>+		int row, int column, char value) {
>+	truthValues[row][column] = value;
>+	keepRow[row] = true;
>+	keepColumn[column] = true;
>+}
>+
>+void reinitializeFromComments(BufferedReader input, BufferedWriter output) {
>+	String line, tab = "";
>+	int cursor;
>+	char c;
>+	this.initializedTransitions = new HashMap(State.stateMaxValue);
>+	int lineNumber = 0;
>+	try {
>+		while ((line = input.readLine()) != null) {
>+			lineNumber++;
>+			output.write(line);
>+			output.write('\n');
>+			if ((cursor = line.indexOf(definitionStartMarker)) != -1) {
>+				// check the line format
>+				boolean reachedStart = true;
>+				for (int i = 0; i < cursor; i++) {
>+					if (!Character.isWhitespace(c = line.charAt(i))) {
>+						reachedStart = false;
>+						break;
>+					}
>+					else {
>+						tab += c;
>+					}
>+				}
>+				if (reachedStart) {
>+					while ((line = input.readLine()) != null && 
>+							line.indexOf(definitionEndMarker) == -1) {
>+						lineNumber++;
>+						final int 
>+							start = 0,
>+							commentStart = 1,
>+							commentFound = 2,
>+							firstState = 10,
>+							firstStateWS = 11,
>+							plus = 20,
>+							secondState = 30,
>+							secondStateWS = 31,
>+							implies = 40,
>+							impliesWS = 41,
>+							thirdState = 50,
>+							thirdStateWS = 51, // caveat, multi-state
>+							error = 99;
>+						int state = start, 
>+							firstStateStart = 0, firstStateEnd = 0, firstStateWhiteSpace = 0,
>+							secondStateStart = 0, secondStateEnd = 0, secondStateWhiteSpace = 0,
>+							thirdStateStart = 0, thirdStateEnd = 0, thirdStateWhiteSpace = 0;
>+						char current;
>+						analysis: for (int i = 0, length = line.length(); i < length; i++) {
>+							current = line.charAt(i);
>+							switch (state) {
>+								case start:
>+									if (current == '/') {
>+										state = commentStart;
>+									} else if (! Character.isWhitespace(current)) {
>+										state = error;
>+										break analysis;
>+									} 
>+									break;
>+								case commentStart:
>+									if (current == '/') {
>+										state = commentFound;
>+									} else {
>+										state = error;
>+										break analysis;
>+									}
>+									break;
>+								case commentFound:
>+									if (! Character.isWhitespace(current)) {
>+										firstStateStart = firstStateEnd = i;
>+										state = firstState;
>+									}
>+									break;
>+								case firstState:
>+									if (Character.isWhitespace(current)) {
>+										state = firstStateWS;
>+										firstStateWhiteSpace = 1;
>+									} else {
>+										firstStateEnd++;
>+									}
>+									break;
>+								case firstStateWS:
>+									if (current == '+') {
>+										state = plus;
>+									} else if (Character.isWhitespace(current)) {
>+										firstStateWhiteSpace++;
>+									} else {
>+										state = firstState;
>+										firstStateEnd += firstStateWhiteSpace + 1;
>+									}
>+									break;
>+								case plus:
>+									if (! Character.isWhitespace(current)) {
>+										secondStateStart = secondStateEnd = i;
>+										state = secondState;
>+									}
>+									break;
>+								case secondState:
>+									if (Character.isWhitespace(current)) {
>+										state = secondStateWS;
>+										secondStateWhiteSpace = 1;
>+									} else {
>+										secondStateEnd++;
>+									}
>+									break;
>+								case secondStateWS:
>+									if (current == '=') {
>+										state = implies;
>+									} else if (Character.isWhitespace(current)) {
>+										secondStateWhiteSpace++;
>+									} else {
>+										state = secondState;
>+										secondStateEnd += secondStateWhiteSpace + 1;
>+									}
>+									break;
>+								case implies:
>+									if (current == '>') {
>+										state = impliesWS;
>+									} else {
>+										state = error;
>+										break analysis;
>+									}
>+									break;
>+								case impliesWS:
>+									if (! Character.isWhitespace(current)) {
>+										thirdStateStart = thirdStateEnd = i;
>+										state = thirdState;
>+									}
>+									break;
>+								case thirdState:
>+									if (current == '/') {
>+										break analysis;
>+									} else if (Character.isWhitespace(current)) {
>+										state = thirdStateWS;
>+										thirdStateWhiteSpace = 1;
>+									} else {
>+										thirdStateEnd++;
>+									}
>+									break;
>+								case thirdStateWS:
>+									if (current == '/') {
>+										state = thirdState;
>+										break analysis;
>+									} else if (current == 'C') {
>+										state++;
>+									} else if (Character.isWhitespace(current)) {
>+										thirdStateWhiteSpace++;
>+									} else {
>+										state = thirdState;
>+										thirdStateEnd += thirdStateWhiteSpace + 1;
>+									}
>+									break;
>+								case thirdStateWS + 1:
>+									if (current == '/') {
>+										state = thirdState;
>+										break analysis;
>+									} else if (current == 'H') {
>+										state++;
>+									} else {
>+										state = thirdState;
>+										thirdStateEnd += thirdStateWhiteSpace + 2;
>+									}
>+									break;
>+								case thirdStateWS + 2:
>+									if (current == '/') {
>+										state = thirdState;
>+										break analysis;
>+									} else if (current == 'E') {
>+										state++;
>+									} else {
>+										state = thirdState;
>+										thirdStateEnd += thirdStateWhiteSpace + 3;
>+									}
>+									break;
>+								case thirdStateWS + 3:
>+									if (current == '/') {
>+										state = thirdState;
>+										break analysis;
>+									} else if (current == 'C') {
>+										state++;
>+									} else {
>+										state = thirdState;
>+										thirdStateEnd += thirdStateWhiteSpace + 4;
>+									}
>+									break;
>+								case thirdStateWS + 4:
>+									if (current == '/' || current == 'K') {
>+										state = thirdState;
>+										break analysis;
>+									} else {
>+										state = thirdState;
>+										thirdStateEnd += thirdStateWhiteSpace + 5;
>+									}
>+									break;
>+									
>+							}
>+						}
>+						if (state == error || state < thirdState) {
>+							System.err.println("Could not interpret comment definition"); // PREMATURE improve diagnostic
>+						} else {
>+							if (state > thirdStateWS) {
>+								thirdStateEnd += (state - thirdState);
>+							}
>+							String stateName;
>+							State first, second, third;
>+							if ((first = State.fromSymbolicName(
>+										stateName = line.substring(firstStateStart, firstStateEnd + 1)))
>+									== null) {
>+								System.err.println("Could not find state: " + stateName); // PREMATURE improve diagnostic
>+							}
>+							if ((second = State.fromSymbolicName(
>+										stateName = line.substring(secondStateStart, secondStateEnd + 1)))
>+									== null) {
>+								System.err.println("Could not find state: " + stateName); // PREMATURE improve diagnostic
>+							}
>+							if ((third = State.fromSymbolicName(
>+										stateName = line.substring(thirdStateStart, thirdStateEnd + 1)))
>+									== null) {
>+								System.err.println("Could not find state: " + stateName); // PREMATURE improve diagnostic
>+							}
>+							if (first != null && second != null && third != null) {
>+								Map transitions;
>+								if ((transitions = (Map) this.initializedTransitions.get(first)) == null) {
>+									transitions = new HashMap(State.stateMaxValue + 1);
>+									this.initializedTransitions.put(first, transitions);
>+								}
>+								if (transitions.get(second) != null) {
>+									System.err.println("Line " + lineNumber + ": Skipping duplicate entry for states: (" + first
>+											+ ", " + second + ")"); // PREMATURE improve diagnostic
>+								} else {
>+									transitions.put(second, third);
>+								}
>+							}
>+						}
>+						output.write(line);
>+						output.write('\n');
>+					}
>+				}
>+				printMissingEntries(output, tab);
>+				output.write(tab + definitionEndMarker + "\n");
>+			}
>+			if (line != null && (cursor = line.indexOf(initializerStartMarker)) != -1) {
>+				// check the line format
>+				boolean reachedStart = true;
>+				tab = "";
>+				for (int i = 0; i < cursor; i++) {
>+					if (!Character.isWhitespace(c = line.charAt(i))) {
>+						reachedStart = false;
>+						break;
>+					}
>+					else {
>+						tab += c;
>+					}
>+				}
>+				if (reachedStart) {
>+					while ((line = input.readLine()) != null && 
>+							line.indexOf(initializerEndMarker) == -1) {
>+						// loop
>+					}
>+					SortedMap sortedTransitionsSet = new TreeMap(this.initializedTransitions);
>+					Iterator transitionsSets = sortedTransitionsSet.entrySet().iterator();
>+					Map.Entry transitionsSet;
>+					while (transitionsSets.hasNext()) {
>+						transitionsSet = (Map.Entry) transitionsSets.next();
>+						SortedMap sortedTransitions = new TreeMap((Map) transitionsSet.getValue());
>+						Iterator transitions = sortedTransitions.entrySet().iterator();
>+						Map.Entry transition;
>+						while (transitions.hasNext()) {
>+							transition = (Map.Entry) transitions.next();
>+							output.write(tab);
>+							output.write('{');
>+							output.write(((State)transitionsSet.getKey()).hexString);
>+							output.write(',');
>+							output.write(((State)transition.getKey()).hexString);
>+							output.write(',');
>+							output.write(((State)transition.getValue()).hexString);
>+							output.write("},");
>+							output.write('\n');
>+						}
>+					}
>+					output.write(tab + initializerEndMarker + "\n");
>+				}
>+			}
>+		}
>+		output.flush();
>+	} catch (IOException e) {
>+		throw new RuntimeException(e);
>+	}
>+}
>+void reinitializeFromComputedValues(BufferedReader input, BufferedWriter output,
>+		State[] consideredStates) {
>+	String line, tab = "";
>+	int cursor;
>+	char c;
>+	try {
>+		while ((line = input.readLine()) != null) {
>+			output.write(line);
>+			output.write('\n');
>+			if ((cursor = line.indexOf(definitionStartMarker)) != -1) {
>+				// check the line format
>+				boolean reachedStart = true;
>+				for (int i = 0; i < cursor; i++) {
>+					if (!Character.isWhitespace(c = line.charAt(i))) {
>+						reachedStart = false;
>+						break;
>+					}
>+					else {
>+						tab += c;
>+					}
>+				}
>+				if (reachedStart) {
>+					while ((line = input.readLine()) != null && 
>+							line.indexOf(definitionEndMarker) == -1) {
>+						// loop
>+					}
>+					printDefinitions(output, consideredStates, tab);
>+					output.write(tab + definitionEndMarker + "\n");
>+				}
>+			}
>+			if (line != null && (cursor = line.indexOf(initializerStartMarker)) != -1) {
>+				// check the line format
>+				boolean reachedStart = true;
>+				tab = "";
>+				for (int i = 0; i < cursor; i++) {
>+					if (!Character.isWhitespace(c = line.charAt(i))) {
>+						reachedStart = false;
>+						break;
>+					}
>+					else {
>+						tab += c;
>+					}
>+				}
>+				if (reachedStart) {
>+					while ((line = input.readLine()) != null && 
>+							line.indexOf(initializerEndMarker) == -1) {
>+						// loop
>+					}
>+					printInitializers(output, consideredStates, tab);
>+					output.write(tab + initializerEndMarker + "\n");
>+				}
>+			}
>+		}
>+		output.flush();
>+	} catch (IOException e) {
>+		throw new RuntimeException(e);
>+	}
>+}
>+int test() {
>+	return test(1, false);
>+}
>+int test(int combinationTestsLoopsNb, boolean skipHighOrderBits) {
>+	Iterator transitionsSetsIterator, transitionsIterator;
>+	State input1, input2, expectedOutput, effectiveOutput;
>+	Map.Entry transition, transitionsSet;
>+	this.failuresNb = 0; // reset
>+	this.failuresNb = 0; // reset
>+	long start = 0;
>+	if (combinationTestsLoopsNb > 1) {
>+		start = System.currentTimeMillis();
>+	}
>+	for (int l = 0; l < combinationTestsLoopsNb ; l++) {
>+		transitionsSetsIterator = this.initializedTransitions.entrySet().iterator();
>+		while (transitionsSetsIterator.hasNext()) {
>+			transitionsSet = (Map.Entry) transitionsSetsIterator.next();
>+			input1 = (State) transitionsSet.getKey();
>+			transitionsIterator = ((Map) transitionsSet.getValue()).
>+				entrySet().iterator();
>+			while (transitionsIterator.hasNext()) {
>+				transition = (Map.Entry) transitionsIterator.next();
>+				input2 = (State) transition.getKey();
>+				expectedOutput = (State) transition.getValue();
>+				effectiveOutput = ((UnconditionalFlowInfoTestHarness) output(
>+						UnconditionalFlowInfoTestHarness.testUnconditionalFlowInfo(input1),
>+						UnconditionalFlowInfoTestHarness.testUnconditionalFlowInfo(input2)))
>+					.asState();
>+				if (effectiveOutput != expectedOutput) {
>+					fail();
>+					System.out.println("\t\t" + input1.printableBitsField +
>+						" + " + input2.printableBitsField +
>+						" => " + effectiveOutput.printableBitsField + 
>+						" instead of: " + expectedOutput.printableBitsField);
>+				}
>+			}
>+		}
>+	}
>+	if (combinationTestsLoopsNb > 1) {
>+		System.out.println(this.name + "...\t\t" + combinationTestsLoopsNb + "\t" + 
>+				(System.currentTimeMillis() - start));
>+	}
>+	// PREMATURE optimize test (extraneous allocations and copies)
>+	// PREMATURE optimize test (extraneous iterations - undup)
>+	if (!skipHighOrderBits) {
>+		UnconditionalFlowInfoTestHarness 
>+			zero = UnconditionalFlowInfoTestHarness.
>+					testUnconditionalFlowInfo(State.start),
>+			left, right, left64, right64, left128, right128,
>+			special = (UnconditionalFlowInfoTestHarness) zero.copy();
>+			special.grow(64); // allocates one extra without adding null info
>+			transitionsSetsIterator = this.initializedTransitions.entrySet().iterator();
>+			while (transitionsSetsIterator.hasNext()) {
>+				transitionsSet = (Map.Entry) transitionsSetsIterator.next();
>+				input1 = (State) transitionsSet.getKey();
>+				transitionsIterator = ((Map) transitionsSet.getValue()).
>+					entrySet().iterator();
>+				while (transitionsIterator.hasNext()) {
>+					transition = (Map.Entry) transitionsIterator.next();
>+					input2 = (State) transition.getKey();
>+					expectedOutput = (State) transition.getValue();
>+					left = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input1);
>+					left64 = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input1, 64);
>+					left128 = UnconditionalFlowInfoTestHarness.
>+						testUnconditionalFlowInfo(input1, 128);
>+					right = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input2);
>+					right64 = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input2, 64);
>+					right128 = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input2, 128);
>+				if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+						output(left64, right64)).asState(64)) != 
>+							expectedOutput) {
>+					fail();
>+					System.out.println("\t\t" + input1.printableBitsField +
>+						" + " + input2.printableBitsField +
>+						" => " + effectiveOutput.printableBitsField + 
>+						" (64, 64) - instead of: " + expectedOutput.printableBitsField);
>+				}
>+				if (input1 == State.start) {
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right128, right)).asState()) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero 128, 1) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(zero, right64)).asState(64)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero, 64) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right128, right64)).asState(64)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero 128, 64) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(zero, right128)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero, 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right64, right128)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero 64, 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(special, right128)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (special zero, 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+				}
>+				if (input2 == State.start) {
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(left, left128)).asState()) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (1, zero 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(left64, zero)).asState(64)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (64, zero) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(left64, left128)).asState(64)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (64, zero 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(left128, zero)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (128, zero) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(left128, left64)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (128, zero 64) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+				}
>+			}
>+		}
>+	}
>+	return this.failuresNb;
>+}
>+}
>+
>+public abstract static class SymmetricalThreeDimensionalTransformation 
>+		extends ThreeDimensionalTransformation{
>+SymmetricalThreeDimensionalTransformation(String name, byte[][] transitions) {
>+	super(name);
>+	int length;
>+	this.initializedTransitions = new HashMap((length = transitions.length) * 2 - 1);
>+	State input1, input2;
>+	for (int i = 0; i < length; i++) {
>+		if (transitions[i].length != 3) {
>+			throw new IllegalArgumentException("transitions should have three entries");
>+		}
>+		if (transitions[i][0] <= transitions[i][1]) {
>+			input1 = State.states[transitions[i][0]]; // array out of bounds exception if broken
>+			input2 = State.states[transitions[i][1]];
>+		}
>+		else {
>+			input1 = State.states[transitions[i][1]];
>+			input2 = State.states[transitions[i][0]];
>+		}
>+		Map transitionsForInput1 = (Map) this.initializedTransitions.get(input1);
>+		if (transitionsForInput1 == null) {
>+			transitionsForInput1 = new HashMap(length);
>+			this.initializedTransitions.put(input1, transitionsForInput1);
>+		}
>+		if (transitionsForInput1.get(input2) != null) {
>+			throw new IllegalArgumentException("duplicate entry");
>+		}
>+		transitionsForInput1.put(input2, State.states[transitions[i][2]]);
>+	}
>+}
>+void hydrate() {
>+	super.hydrate();
>+	checkSymmetry(this.computedTransitions);
>+}
>+private void checkSymmetry(Map map) {
>+	State input1, input2, result;
>+	Map.Entry entry1, entry2;
>+	Map transition;
>+	Iterator transitions1 = map.entrySet().iterator(), transitions2;
>+	while (transitions1.hasNext()) {
>+		entry1 = (Map.Entry) transitions1.next();
>+		input1 = (State) entry1.getKey();
>+		transition = (Map) entry1.getValue();
>+		transitions2 = transition.entrySet().iterator();
>+		while (transitions2.hasNext()) {
>+			entry2 = (Map.Entry) transitions2.next();
>+			input2 = (State) entry2.getKey();
>+			result = (State) entry2.getValue();
>+			if (result != ((Map) map.get(input2)).get(input1) && input1.symbolic && input2.symbolic) {
>+				System.err.println("symmetry mismatch: " + input1 + " + " +
>+						input2 + " -> " + result + "/" + ((Map) map.get(input2)).get(input1));
>+			}
>+		}
>+	}
>+}
>+void mark(char truthValues[][], boolean keepRow[], boolean keepColumn[],
>+		int row, int column, char value) {
>+	truthValues[row][column] = truthValues[column][row] = value;
>+	keepRow[row] = true;
>+	keepColumn[column] = true;
>+	keepRow[column] = true;
>+	keepColumn[row] = true;
>+}
>+void printDefinitions(BufferedWriter output, State[] consideredStates, String tab)
>+		throws IOException {
>+	// only difference with parent is that we print only half of possible 
>+	// combinations
>+	int i, j, length;
>+	State result;
>+	for (i = 0, length = consideredStates.length; i < length; i++) {
>+		for (j = i; j < length; j++) {
>+			output.write(tab);
>+			output.write("// ");
>+			output.write(consideredStates[i].name);
>+			output.write(" + ");
>+			output.write(consideredStates[j].name);
>+			output.write(" => ");
>+			output.write(
>+				(result = (State)
>+					((Map) this.computedTransitions.get(consideredStates[i])).get(consideredStates[j])).name);
>+			if (!result.symbolic ||
>+				result != this.initializedTransitions.get(consideredStates[i])) {
>+				output.write("\t\t CHECK");
>+			}
>+			output.write('\n');
>+		}
>+	}
>+}
>+void printInitializers(BufferedWriter output, State[] consideredStates, String tab)
>+		throws IOException {
>+	// only difference with parent is that we print only half of possible 
>+	// combinations
>+	int i, j, length;
>+	for (i = 0, length = consideredStates.length; i < length; i++) {
>+		for (j = i; j < length; j++) {
>+			output.write(tab);
>+			output.write('{');
>+			output.write(consideredStates[i].hexString);
>+			output.write(',');
>+			output.write(consideredStates[j].hexString);
>+			output.write(',');
>+			output.write(
>+				((State)
>+					((Map) this.computedTransitions.get(consideredStates[i])).get(consideredStates[j])).hexString);
>+			output.write("},");
>+			output.write('\n');
>+		}
>+	}
>+}
>+void printMissingEntries(BufferedWriter output, String tab) throws IOException {
>+	Iterator firsts = State.symbolicStates(), seconds;
>+	State first, second;
>+	while (firsts.hasNext()) {
>+		first = (State) firsts.next();
>+		seconds = State.symbolicStates();
>+		while (seconds.hasNext()) {
>+			second = (State) seconds.next();
>+			if (!checkPair(first, second)) {
>+				addPair(first, second);
>+				System.err.println("Adding missing transition for states (" + first + ", " + second + ")");
>+				output.write(tab);
>+				output.write("// ");
>+				output.write(first.toString());
>+				output.write(" + ");
>+				output.write(second.toString());
>+				output.write(" => start\t\t CHECK\n");
>+			}
>+		}
>+	}
>+}
>+private boolean checkPair(State s1, State s2) {
>+	Map transitions;
>+	if ((transitions = (Map) this.initializedTransitions.get(s1)) != null) {
>+		if (transitions.get(s2) != null) {
>+			return true;
>+		}
>+	}
>+	if ((transitions = (Map) this.initializedTransitions.get(s2)) != null) {
>+		if (transitions.get(s1) != null) {
>+			return true;
>+		}
>+	}
>+	return false;
>+}
>+private void addPair(State s1, State s2) {
>+	Map transitions;
>+	if ((transitions = (Map) this.initializedTransitions.get(s1)) == null) {
>+		transitions = new HashMap();
>+		this.initializedTransitions.put(s1, transitions);
>+	}
>+	transitions.put(s2, s2); // dummy, non null value
>+}
>+// PREMATURE factorize upward
>+int test(int combinationTestsLoopsNb, boolean skipHighOrderBits) {
>+	Iterator transitionsSetsIterator, transitionsIterator;
>+	State input1, input2, expectedOutput, effectiveOutput;
>+	Map.Entry transition, transitionsSet;
>+	this.failuresNb = 0; // reset
>+	this.failuresNb = 0; // reset
>+	long start = 0;
>+	if (combinationTestsLoopsNb > 1) {
>+		start = System.currentTimeMillis();
>+	}
>+	for (int l = 0; l < combinationTestsLoopsNb ; l++) {
>+		transitionsSetsIterator = this.initializedTransitions.entrySet().iterator();
>+		while (transitionsSetsIterator.hasNext()) {
>+			transitionsSet = (Map.Entry) transitionsSetsIterator.next();
>+			input1 = (State) transitionsSet.getKey();
>+			transitionsIterator = ((Map) transitionsSet.getValue()).
>+				entrySet().iterator();
>+			while (transitionsIterator.hasNext()) {
>+				transition = (Map.Entry) transitionsIterator.next();
>+				input2 = (State) transition.getKey();
>+				expectedOutput = (State) transition.getValue();
>+				effectiveOutput = ((UnconditionalFlowInfoTestHarness) output(
>+						UnconditionalFlowInfoTestHarness.testUnconditionalFlowInfo(input1),
>+						UnconditionalFlowInfoTestHarness.testUnconditionalFlowInfo(input2)))
>+					.asState();
>+				if (effectiveOutput != expectedOutput) {
>+					fail();
>+					System.out.println("\t\t" + input1.printableBitsField +
>+						" + " + input2.printableBitsField +
>+						" => " + effectiveOutput.printableBitsField + 
>+						" instead of: " + expectedOutput.printableBitsField);
>+				}
>+				effectiveOutput = ((UnconditionalFlowInfoTestHarness) output(
>+						UnconditionalFlowInfoTestHarness.testUnconditionalFlowInfo(input2),
>+						UnconditionalFlowInfoTestHarness.testUnconditionalFlowInfo(input1)))
>+					.asState();
>+				if (effectiveOutput != expectedOutput) {
>+					fail();
>+					System.out.println("\t\t" + input2.printableBitsField +
>+						" + " + input1.printableBitsField +
>+						" => " + effectiveOutput.printableBitsField + 
>+						" instead of: " + expectedOutput.printableBitsField);
>+				}
>+			}
>+		}
>+	}
>+	if (combinationTestsLoopsNb > 1) {
>+		System.out.println(this.name + "...\t\t" + combinationTestsLoopsNb + "\t" + 
>+				(System.currentTimeMillis() - start));
>+	}
>+	// PREMATURE optimize test (extraneous allocations and copies)
>+	// PREMATURE optimize test (extraneous iterations - undup)
>+	if (!skipHighOrderBits) {
>+		UnconditionalFlowInfoTestHarness 
>+			zero = UnconditionalFlowInfoTestHarness.
>+					testUnconditionalFlowInfo(State.start),
>+			right, left64, right64, right128;
>+			transitionsSetsIterator = this.initializedTransitions.entrySet().iterator();
>+			while (transitionsSetsIterator.hasNext()) {
>+				transitionsSet = (Map.Entry) transitionsSetsIterator.next();
>+				input1 = (State) transitionsSet.getKey();
>+				transitionsIterator = ((Map) transitionsSet.getValue()).
>+					entrySet().iterator();
>+				while (transitionsIterator.hasNext()) {
>+					transition = (Map.Entry) transitionsIterator.next();
>+					input2 = (State) transition.getKey();
>+					expectedOutput = (State) transition.getValue();
>+					left64 = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input1, 64);
>+					right = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input2);
>+					right64 = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input2, 64);
>+					right128 = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(input2, 128);
>+				if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+						output(left64, right64)).asState(64)) != 
>+							expectedOutput) {
>+					fail();
>+					System.out.println("\t\t" + input1.printableBitsField +
>+						" + " + input2.printableBitsField +
>+						" => " + effectiveOutput.printableBitsField + 
>+						" (64, 64) - instead of: " + expectedOutput.printableBitsField);
>+				}
>+				if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+						output(right64, left64)).asState(64)) != 
>+							expectedOutput) {
>+					fail();
>+					System.out.println("\t\t" + input2.printableBitsField +
>+						" + " + input1.printableBitsField +
>+						" => " + effectiveOutput.printableBitsField + 
>+						" (64, 64) - instead of: " + expectedOutput.printableBitsField);
>+				}
>+				if (input1 == State.start) {
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right128, right)).asState()) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero 128, 1) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(zero, right64)).asState(64)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero, 64) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right128, right64)).asState(64)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero 128, 64) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(zero, right128)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero, 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right64, right128)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input1.printableBitsField +
>+							" + " + input2.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (zero 64, 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right, right128)).asState()) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input2.printableBitsField +
>+							" + " + input1.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (1, zero 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right64, zero)).asState(64)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input2.printableBitsField +
>+							" + " + input1.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (64, zero) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right64, right128)).asState(64)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input2.printableBitsField +
>+							" + " + input1.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (64, zero 128) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right128, zero)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input2.printableBitsField +
>+							" + " + input1.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (128, zero) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+					if ((effectiveOutput = ((UnconditionalFlowInfoTestHarness)
>+							output(right128, right64)).asState(128)) != expectedOutput) {
>+						fail();
>+						System.out.println("\t\t" + input2.printableBitsField +
>+							" + " + input1.printableBitsField +
>+							" => " + effectiveOutput.printableBitsField + 
>+							" (128, zero 64) - instead of: " + expectedOutput.printableBitsField);
>+					}
>+				}
>+			}
>+		}
>+	}
>+	return this.failuresNb;
>+}
>+}
>+}
>Index: src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceImplTests.java
>===================================================================
>RCS file: src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceImplTests.java
>diff -N src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceImplTests.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceImplTests.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,1866 @@
>+/*******************************************************************************
>+ * Copyright (c) 2005 IBM Corporation and others.
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ * IBM Corporation - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.jdt.core.tests.compiler.regression;
>+
>+import java.io.BufferedReader;
>+import java.io.BufferedWriter;
>+import java.io.File;
>+import java.io.FileReader;
>+import java.io.FileWriter;
>+import java.io.IOException;
>+import java.util.ArrayList;
>+import java.util.HashMap;
>+import java.util.Iterator;
>+import java.util.List;
>+import java.util.Map;
>+import java.util.SortedMap;
>+import java.util.TreeMap;
>+
>+import org.eclipse.jdt.internal.compiler.flow.FlowInfo;
>+import org.eclipse.jdt.internal.compiler.flow.NullInfoRegistry;
>+import org.eclipse.jdt.internal.compiler.flow.UnconditionalFlowInfo;
>+import org.eclipse.jdt.internal.compiler.flow.UnconditionalFlowInfo.AssertionFailedException;
>+import org.eclipse.jdt.internal.compiler.impl.Constant;
>+import org.eclipse.jdt.internal.compiler.lookup.LocalVariableBinding;
>+import org.eclipse.jdt.internal.compiler.lookup.PackageBinding;
>+import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
>+
>+import junit.framework.AssertionFailedError;
>+import junit.framework.Test;
>+import junit.framework.TestSuite;
>+
>+/**
>+ * A tests series especially meant to validate the internals of our null
>+ * reference analysis. See NullReferenceTest for tests targetted at 
>+ * the source code compiler behavior level.
>+ */
>+public class NullReferenceImplTests extends NullReferenceTest {
>+	// Static initializer to specify tests subset using TESTS_* static variables
>+ 	// All specified tests which does not belong to the class are skipped...
>+ 	// Only the highest compliance level is run; add the VM argument
>+ 	// -Dcompliance=1.4 (for example) to lower it if needed
>+ 	static {
>+// 	TESTS_NAMES = new String[] { "test2050" };
>+// 	TESTS_NUMBERS = new int[] { 2061 }; 
>+// 	TESTS_NUMBERS = new int[] { 2999 }; 
>+// 	TESTS_RANGE = new int[] { 2050, -1 }; 
>+ 	}
>+
>+/**
>+ * A class to hold states as seen by the low level validation tests and machinery.
>+ * State provides:
>+ * - singletons for all possible states given the number of bits for the said 
>+ * states;
>+ * - semantic names for known states;
>+ * - printable representation of states as bit fields;
>+ * - coordination with other classes to perform transitive closure analysis, etc.
>+ */
>+	/*
>+		This is a tabular definition for states. It can be completed/leveraged by 
>+		the Generator class so as to smoothen the transition between differing encodings
>+		of the states.
>+	// STATES DEFINITION START
>+			000000	start
>+			000001
>+			000010
>+			000011
>+			000100	pot. unknown
>+			000101
>+			000110
>+			000111
>+			001000	pot. non null
>+			001001
>+			001010
>+			001011
>+			001100	pot. nn & pot. un
>+			001101
>+			001110
>+			001111
>+			010000	pot. null
>+			010001
>+			010010
>+			010011
>+			010100	pot. n & pot. un
>+			010101
>+			010110
>+			010111
>+			011000	pot. n & pot. nn
>+			011001
>+			011010
>+			011011
>+			011100
>+			011101
>+			011110
>+			011111
>+			100000
>+			100001
>+			100010
>+			100011
>+			100100	def. unknown
>+			100101
>+			100110
>+			100111
>+			101000	def. non null
>+			101001
>+			101010
>+			101011
>+			101100	pot. nn & prot. nn
>+			101101
>+			101110
>+			101111
>+			110000	def. null
>+			110001
>+			110010
>+			110011
>+			110100	pot. n & prot. n
>+			110101
>+			110110
>+			110111
>+			111000	prot. null
>+			111001
>+			111010
>+			111011
>+			111100	prot. non null
>+			111101
>+			111110
>+			111111
>+	// STATES DEFINITION END
>+	*/
>+	public static class State implements Comparable {
>+		// PREMATURE consider moving initialization to test setup/dispose
>+		public final static State[] states = {
>+			// STATES INITIALIZER START
>+			new State(0, "start"), // 000000
>+			new State(1), // 000001
>+			new State(2), // 000010
>+			new State(3), // 000011
>+			new State(4, "pot. unknown"), // 000100
>+			new State(5), // 000101
>+			new State(6), // 000110
>+			new State(7), // 000111
>+			new State(8, "pot. non null"), // 001000
>+			new State(9), // 001001
>+			new State(10), // 001010
>+			new State(11), // 001011
>+			new State(12, "pot. nn & pot. un"), // 001100
>+			new State(13), // 001101
>+			new State(14), // 001110
>+			new State(15), // 001111
>+			new State(16, "pot. null"), // 010000
>+			new State(17), // 010001
>+			new State(18), // 010010
>+			new State(19), // 010011
>+			new State(20, "pot. n & pot. un"), // 010100
>+			new State(21), // 010101
>+			new State(22), // 010110
>+			new State(23), // 010111
>+			new State(24, "pot. n & pot. nn"), // 011000
>+			new State(25), // 011001
>+			new State(26), // 011010
>+			new State(27), // 011011
>+			new State(28), // 011100
>+			new State(29), // 011101
>+			new State(30), // 011110
>+			new State(31), // 011111
>+			new State(32), // 100000
>+			new State(33), // 100001
>+			new State(34), // 100010
>+			new State(35), // 100011
>+			new State(36, "def. unknown"), // 100100
>+			new State(37), // 100101
>+			new State(38), // 100110
>+			new State(39), // 100111
>+			new State(40, "def. non null"), // 101000
>+			new State(41), // 101001
>+			new State(42), // 101010
>+			new State(43), // 101011
>+			new State(44, "pot. nn & prot. nn"), // 101100
>+			new State(45), // 101101
>+			new State(46), // 101110
>+			new State(47), // 101111
>+			new State(48, "def. null"), // 110000
>+			new State(49), // 110001
>+			new State(50), // 110010
>+			new State(51), // 110011
>+			new State(52, "pot. n & prot. n"), // 110100
>+			new State(53), // 110101
>+			new State(54), // 110110
>+			new State(55), // 110111
>+			new State(56, "prot. null"), // 111000
>+			new State(57), // 111001
>+			new State(58), // 111010
>+			new State(59), // 111011
>+			new State(60, "prot. non null"), // 111100
>+			new State(61), // 111101
>+			new State(62), // 111110
>+			new State(63), // 111111
>+			// STATES INITIALIZER END
>+		};
>+		public final static State start = states[0];
>+		public static final int 
>+			stateMaxValue = 0x3F,
>+			stateWidth = 6,
>+			statesNb = stateMaxValue + 1;
>+		String name, printableBitsField, hexString;
>+		public byte value;
>+		boolean symbolic;
>+	private State() {
>+	}
>+	private State(int numericValue) {
>+		this(numericValue, null);
>+	}
>+	private State(int numericValue, String publicName) {
>+		if (numericValue > stateMaxValue) {
>+			throw new IllegalArgumentException("state value overflow");
>+		}
>+		this.value = (byte) numericValue;
>+		StringBuffer printableValue = new StringBuffer(6);
>+		for (int i = stateWidth - 1; i >= 0; i--) {
>+			printableValue.append((numericValue >>> i & 1) != 0 ? '1' : '0');
>+		}
>+		this.printableBitsField = printableValue.toString();
>+		if (this.value > 0xF) {
>+			this.hexString = "0x" + Integer.toHexString(this.value).toUpperCase();
>+		}
>+		else {
>+			this.hexString = "0x0" + Integer.toHexString(this.value).toUpperCase();
>+		}
>+		if (publicName != null) {
>+			this.name = publicName;
>+			this.symbolic = true;
>+		}
>+		else {
>+			this.name = this.printableBitsField;
>+		}
>+	}
>+	private State(String commentLine) {
>+		char current = ' '; // keep the initialization status quiet
>+		int cursor, length;
>+		for (cursor = 0, length = commentLine.length(); 
>+			cursor < length;
>+			cursor++) {
>+			if ((current = commentLine.charAt(cursor)) == '0' ||
>+					current == '1') {
>+				break;
>+			}
>+		}
>+		if (cursor == length) {
>+			throw new RuntimeException("bad state definition format (missing bits field): " + commentLine); 
>+			// PREMATURE adopt consistent error policy
>+		}
>+		int valueDigits;
>+		for (valueDigits = 1; cursor < (length - 1) && valueDigits < stateWidth; valueDigits++) {
>+			this.value = (byte) ((this.value << 1) + (current - '0'));
>+			if ((current = commentLine.charAt(++cursor)) != '0' &&
>+					current != '1') {
>+				throw new RuntimeException("bad state definition format (inappropriate character in bits field): " + commentLine);
>+				// PREMATURE adopt consistent error policy
>+			}
>+		}
>+		if (valueDigits < stateWidth) {
>+			throw new RuntimeException("bad state definition format (bits field is too short): " + commentLine);
>+			// PREMATURE adopt consistent error policy
>+		}
>+		this.value = (byte) ((this.value << 1) + (current - '0'));
>+		this.printableBitsField = commentLine.substring(cursor - stateWidth + 1, cursor + 1);
>+		if (this.value > 0xF) {
>+			this.hexString = "0x" + Integer.toHexString(this.value).toUpperCase();
>+		}
>+		else {
>+			this.hexString = "0x0" + Integer.toHexString(this.value).toUpperCase();
>+		}
>+		while (++cursor < length && Character.isWhitespace(current = commentLine.charAt(++cursor)) && current != '\n') {
>+			// loop
>+		}
>+		if (cursor < length && current != '\n') {
>+			this.name = commentLine.substring(cursor, length);
>+		}
>+		if (this.name == null) {
>+			this.name = this.printableBitsField;
>+		} else {
>+			this.symbolic = true;
>+		}
>+	}
>+	private String asInitializer() {
>+		StringBuffer result = new StringBuffer(70);
>+		result.append("		new State(");
>+		result.append(this.value);
>+		char first;
>+		boolean nameIsSymbolic = (first = this.name.charAt(0)) != '0'
>+			&& first != '1';
>+		if (nameIsSymbolic) {
>+			result.append(", \"");
>+			result.append(this.name);
>+			result.append('"');
>+		}
>+		result.append("), // ");
>+		result.append(this.printableBitsField);
>+		return result.toString();
>+	}
>+	long [] asLongArray() {
>+		long[] result = new long[stateWidth];
>+		for (int i = 0; i < stateWidth; i++) {
>+			result[i] = ((this.value >> (stateWidth - i - 1)) & 1) == 0 ? 0 : 1;
>+		}
>+		return result;
>+	}
>+	private String asSourceComment() {
>+		StringBuffer result = new StringBuffer(70);
>+		result.append("\t\t");
>+		result.append(this.printableBitsField);
>+		char first;
>+		boolean nameIsSymbolic = (first = this.name.charAt(0)) != '0'
>+			&& first != '1';
>+		if (nameIsSymbolic) {
>+			result.append('\t');
>+			result.append(this.name);
>+		}
>+		return result.toString();
>+	}
>+	public int compareTo(Object o) {
>+		return this.value - ((State) o).value;
>+	}
>+	static State fromLongValues(long bit1, long bit2, long bit3, long bit4, long bit5, long bit6) {
>+		// PREMATURE consider taking an UnconditionalFlowInfo in parameter
>+		return states[(int)(
>+			(bit6 & 1) + 
>+				2 * ((bit5 & 1) +
>+					2 * ((bit4 & 1) +
>+						2 * ((bit3 & 1) +
>+							2 * ((bit2 & 1) +
>+								2 * (bit1 & 1))))))];
>+	}
>+	private static Map namesIndex; 
>+	static State fromSymbolicName (String name) {
>+		if (namesIndex == null) {
>+			namesIndex = new HashMap(states.length);
>+			for (int i = 0; i < states.length; i++) {
>+				if (states[i].name != null) {
>+					namesIndex.put(states[i].name, states[i]);
>+				}
>+			}
>+		}
>+		return (State) namesIndex.get(name);
>+	}
>+	private static void grabDefinitionFromComment(BufferedReader input) {
>+		String line;
>+		State current;
>+	// use when the initializer is incomplete, hence needs to be reinitialized
>+	//	states = new State[stateMaxValue + 1];
>+	// use when the states field is final, with the appropriate size:
>+		for (int i = 0; i <= stateMaxValue; i++) {
>+			states[i] = null;
>+		}
>+		try {
>+			while ((line = input.readLine()) != null && line.indexOf(definitionEndMarker) == -1) {
>+				current = new State(line);
>+				if (states[current.value] != null) {
>+					throw new RuntimeException("duplicate state for index: " + current.value);
>+				}
>+				else {
>+					states[current.value] = current;
>+				}
>+			}
>+		} catch (IOException e) {
>+			throw new RuntimeException(e);
>+		}
>+		for (int i = 0; i < stateMaxValue; i++) {
>+			if (states[i] == null) {
>+				states[i] = new State(i);
>+			}
>+		}
>+	}
>+	// PREMATURE may decide to remove
>+	//private static void printAsInitializer() {
>+	//	int i, length;
>+	//	System.out.println(initializerStartMarker);
>+	//	for (i = 0, length = states.length; i < length; i++) {
>+	//		System.out.println(states[i].asInitializer());
>+	//	}
>+	//	for (/* continue */; i <= stateMaxValue; i++) {
>+	//		System.out.println((new State(i)).asInitializer() + " CHECK");
>+	//	}
>+	//	System.out.println(initializerEndMarker);
>+	//}
>+	// PREMATURE may decide to remove
>+	//private static void printAsSourceComment() {
>+	//	int i, length;
>+	//	System.out.println("/*");
>+	//	System.out.println(definitionStartMarker);
>+	//	for (i = 0, length = states.length; i < length; i++) {
>+	//		System.out.println(states[i].asSourceComment());
>+	//	}
>+	//	for (/* continue */; i <= stateMaxValue; i++) {
>+	//		System.out.println((new State(i)).asSourceComment());
>+	//	}
>+	//	System.out.println(definitionEndMarker);
>+	//	System.out.println("*/");
>+	//}
>+	private final static String 
>+		definitionStartMarker = "// STATES " + CodeAnalysis.definitionStartMarker,
>+		definitionEndMarker = "// STATES " + CodeAnalysis.definitionEndMarker,
>+		initializerStartMarker = "// STATES " + CodeAnalysis.initializerStartMarker,
>+		initializerEndMarker = "// STATES " + CodeAnalysis.initializerEndMarker;
>+	static void reinitializeFromComment(BufferedReader input, BufferedWriter output) {
>+		String line, tab = "";
>+		int cursor;
>+		char c;
>+		try {
>+			while ((line = input.readLine()) != null) {
>+				output.write(line);
>+				output.write('\n');
>+				if ((cursor = line.indexOf(definitionStartMarker)) != -1) {
>+					// check the line format
>+					boolean reachedStart = true;
>+					for (int i = 0; i < cursor; i++) {
>+						if (!Character.isWhitespace(c = line.charAt(i))) {
>+							reachedStart = false;
>+							break;
>+						}
>+						else {
>+							tab += c;
>+						}
>+					}
>+					if (reachedStart) {
>+						grabDefinitionFromComment(input); // consumes up to the END line
>+						int i, length;
>+						for (i = 0, length = states.length; i < length; i++) {
>+							output.write(states[i].asSourceComment());
>+							output.write('\n');
>+						}
>+						output.write(tab + definitionEndMarker + "\n");
>+					}
>+				}
>+				if ((cursor = line.indexOf(initializerStartMarker)) != -1) {
>+					// check the line format
>+					boolean reachedStart = true;
>+					tab = "";
>+					for (int i = 0; i < cursor; i++) {
>+						if (!Character.isWhitespace(c = line.charAt(i))) {
>+							reachedStart = false;
>+							break;
>+						}
>+						else {
>+							tab += c;
>+						}
>+					}
>+					if (reachedStart) {
>+						while ((line = input.readLine()) != null && 
>+								line.indexOf(initializerEndMarker) == -1) {
>+							// loop
>+						}
>+						int i, length;
>+						for (i = 0, length = states.length; i < length; i++) {
>+							output.write(states[i].asInitializer());
>+							output.write('\n');
>+						}
>+						output.write(tab + initializerEndMarker + "\n");
>+					}
>+				}
>+			}
>+			output.flush();
>+			namesIndex = null;
>+		} catch (IOException e) {
>+			throw new RuntimeException(e);
>+		}
>+	}
>+	static Iterator symbolicStates() {
>+		return new Iterator() {
>+			int nextSymbolic = -1;
>+			public boolean hasNext() {
>+				if (nextSymbolic == -1) {
>+					for (nextSymbolic = 0; nextSymbolic < states.length; nextSymbolic++) {
>+						if (states[nextSymbolic].symbolic) {
>+							break;
>+						}
>+					}
>+				} else {
>+					for (; nextSymbolic < states.length; nextSymbolic++) {
>+						if (states[nextSymbolic].symbolic) {
>+							break;
>+						}
>+					}
>+				}
>+				return nextSymbolic < states.length;
>+			}
>+			public Object next() {
>+				State result = null;
>+				if (nextSymbolic < states.length) {
>+					result = states[nextSymbolic];
>+					nextSymbolic++;
>+				}
>+				return result;
>+			}
>+			public void remove() {
>+				throw new RuntimeException("unimplemented");
>+			}
>+		};
>+	}
>+	public String toString() {
>+		return this.name;
>+	}
>+	}
>+
>+public NullReferenceImplTests(String name) {
>+ super(name);
>+}
>+
>+ 	// Tests tuning
>+	static final boolean 
>+		skipHighOrderBits = false; // define to true when tuning encoding
>+	static final int
>+		combinationTestsloopsNb = 1; // define to 10000s to measure performances
>+
>+public static Test suite() {
>+	// we do not want to run for 1.3, 1.4, 1.5 but once only
>+ Class clazz = testClass();
>+ TestSuite all = new TestSuite(clazz.getName());
>+ List tests = buildTestsList(testClass());
>+ for (int i = 0, length = tests.size(); i < length; i++) {
>+ 	all.addTest((Test) tests.get(i));
>+ }
>+	return all;
>+}
>+ 
>+public static Class testClass() {
>+ return NullReferenceImplTests.class;
>+}
>+
>+public void test2050_markAsComparedEqualToNonNull() {
>+	int failures = NullReferenceImplTransformations.markAsComparedEqualToNonNull.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2051_markAsComparedEqualToNull() {
>+	int failures = NullReferenceImplTransformations.markAsComparedEqualToNull.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2055_markAsDefinitelyNonNull() {
>+	int failures = NullReferenceImplTransformations.markAsDefinitelyNonNull.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2056_markAsDefinitelyNull() {
>+	int failures = NullReferenceImplTransformations.markAsDefinitelyNull.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2057_markAsDefinitelyUnknown() {
>+	int failures = NullReferenceImplTransformations.markAsDefinitelyUnknown.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2060_addInitializationsFrom() {
>+	int failures = NullReferenceImplTransformations.addInitializationsFrom.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2061_addPotentialInitializationsFrom() {
>+	int failures = NullReferenceImplTransformations.addPotentialInitializationsFrom.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2062_mergedWith() {
>+	int failures = NullReferenceImplTransformations.mergedWith.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2070_newNullInfoRegistry() {
>+	int failures = NullReferenceImplTransformations.newNullInfoRegistry.test();
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+// PREMATURE rewrite from scratch
>+//public void _test2058_recode() {
>+//	long [][][] testData = transitionsTablesData[recode];
>+//	int failures = 0;
>+//	long start;
>+//	if (combinationTestsloopsNb > 1) {
>+//		start = System.currentTimeMillis();
>+//	}
>+//	String header = "recode failures: ";
>+//	for (int l = 0; l < combinationTestsloopsNb ; l++) {
>+//		for (int i = 0; i < testData.length; i++) {
>+//			UnconditionalFlowInfoTestHarness result;
>+//			result = UnconditionalFlowInfoTestHarness.
>+//						testUnconditionalFlowInfo(testData[i][0]);
>+//			result.encode();
>+//			result.decode();
>+//			
>+//			if (!result.testEquals(UnconditionalFlowInfoTestHarness.
>+//						testUnconditionalFlowInfo(testData[i][0]))) {
>+//				if (failures == 0) {
>+//					System.out.println(header);
>+//				}
>+//				failures++;
>+//				System.out.println("\t\t{" + result.testString() + 
>+//					"}, // instead of: " + testStringValueOf(testData[i][0]));
>+//			}
>+//		}
>+//	}
>+//	if (combinationTestsloopsNb > 1) {
>+//		System.out.println("mergedWith\t\t\t" + combinationTestsloopsNb + "\t" + 
>+//				(System.currentTimeMillis() - start));
>+//	}
>+//	for (int i = 0; i < testData.length; i++) {
>+//		UnconditionalFlowInfoTestHarness result;
>+//		result = UnconditionalFlowInfoTestHarness.
>+//					testUnconditionalFlowInfo(testData[i][0], 64);
>+//		result.encode();
>+//		result.decode();
>+//		
>+//		if (!result.testEquals(UnconditionalFlowInfoTestHarness.
>+//					testUnconditionalFlowInfo(testData[i][0], 64))) {
>+//			if (failures == 0) {
>+//				System.out.println(header);
>+//			}
>+//			failures++;
>+//			System.out.println("\t\t{" + result.testString() + 
>+//				"}, // (64) - instead of: " + testStringValueOf(testData[i][0]));
>+//		}
>+//	}
>+//	assertTrue("nb of failures: " + failures, failures == 0);
>+//}
>+
>+public void test2400_state_consistency() {
>+	int failures = 0;
>+	long start;
>+	if (combinationTestsloopsNb > 1) {
>+		start = System.currentTimeMillis();
>+	}
>+	String header = "state consistency failures: ";
>+	for (int l = 0; l < combinationTestsloopsNb ; l++) {
>+		for (int i = 0; i < State.states.length; i++) {
>+			if (State.states[i].symbolic) {
>+				UnconditionalFlowInfoTestHarness 
>+					state = UnconditionalFlowInfoTestHarness.
>+							testUnconditionalFlowInfo(State.states[i]);
>+				boolean
>+					isDefinitelyNonNull = state.isDefinitelyNonNull(TestLocalVariableBinding.local0),
>+					isDefinitelyNull = state.isDefinitelyNull(TestLocalVariableBinding.local0),
>+					isDefinitelyUnknown = state.isDefinitelyUnknown(TestLocalVariableBinding.local0),
>+					isPotentiallyNull = state.isPotentiallyNull(TestLocalVariableBinding.local0),
>+					isPotentiallyUnknown = state.isPotentiallyUnknown(TestLocalVariableBinding.local0),
>+					isProtectedNonNull = state.isProtectedNonNull(TestLocalVariableBinding.local0),
>+					isProtectedNull = state.isProtectedNull(TestLocalVariableBinding.local0);
>+				if (isDefinitelyNonNull
>+							&& (isDefinitelyNull || isDefinitelyUnknown
>+									|| isPotentiallyNull
>+									|| isProtectedNull)) {
>+					if (failures == 0) {
>+						System.out.println(header);
>+					}
>+					failures++;
>+					System.out.println("\t\tconsistency breakage for definitely non null state " + State.states[i].name);
>+				}
>+				if (isDefinitelyNull
>+							&& (isDefinitelyNonNull || isDefinitelyUnknown
>+									|| isPotentiallyUnknown || isProtectedNonNull)) {
>+					if (failures == 0) {
>+						System.out.println(header);
>+					}
>+					failures++;
>+					System.out.println("\t\tconsistency breakage for definitely null state " + State.states[i].name);
>+				}
>+				if (isDefinitelyUnknown
>+							&& (isDefinitelyNonNull || isDefinitelyNull
>+									|| isPotentiallyNull || isProtectedNonNull
>+									|| isProtectedNull)) {
>+					if (failures == 0) {
>+						System.out.println(header);
>+					}
>+					failures++;
>+					System.out.println("\t\tconsistency breakage for definitely unknown state " + State.states[i].name);
>+				}
>+				if (isProtectedNonNull && !isDefinitelyNonNull
>+						|| isProtectedNull && !isDefinitelyNull
>+						|| i > 0 // not start
>+							&& !State.states[i].name.equals("pot. non null")
>+							&& !(isDefinitelyNonNull || isDefinitelyNull
>+									|| isDefinitelyUnknown || isPotentiallyNull
>+									|| isPotentiallyUnknown || isProtectedNonNull
>+									|| isProtectedNull)) {
>+					if (failures == 0) {
>+						System.out.println(header);
>+					}
>+					failures++;
>+					System.out.println("\t\tconsistency breakage for " + State.states[i].name);
>+				}
>+			}
>+		}
>+	}
>+	if (combinationTestsloopsNb > 1) {
>+		System.out.println("mergedWith\t\t\t" + combinationTestsloopsNb + "\t" + 
>+				(System.currentTimeMillis() - start));
>+	}
>+	for (int i = 0; i < State.states.length; i++) {
>+		if (State.states[i].symbolic) {
>+			UnconditionalFlowInfoTestHarness state;
>+			state = UnconditionalFlowInfoTestHarness.
>+						testUnconditionalFlowInfo(State.states[i], 64);
>+			boolean
>+				isDefinitelyNonNull = state.isDefinitelyNonNull(TestLocalVariableBinding.local64),
>+				isDefinitelyNull = state.isDefinitelyNull(TestLocalVariableBinding.local64),
>+				isDefinitelyUnknown = state.isDefinitelyUnknown(TestLocalVariableBinding.local64),
>+				isPotentiallyNull = state.isPotentiallyNull(TestLocalVariableBinding.local64),
>+				isPotentiallyUnknown = state.isPotentiallyUnknown(TestLocalVariableBinding.local64),
>+				isProtectedNonNull = state.isProtectedNonNull(TestLocalVariableBinding.local64),
>+				isProtectedNull = state.isProtectedNull(TestLocalVariableBinding.local64);
>+				if (isDefinitelyNonNull
>+							&& (isDefinitelyNull || isDefinitelyUnknown
>+									|| isPotentiallyNull
>+									|| isProtectedNull)) {
>+					if (failures == 0) {
>+						System.out.println(header);
>+					}
>+					failures++;
>+					System.out.println("\t\tconsistency breakage (64) for definitely non null state " + State.states[i].name);
>+				}
>+				if (isDefinitelyNull
>+							&& (isDefinitelyNonNull || isDefinitelyUnknown
>+									|| isPotentiallyUnknown || isProtectedNonNull)) {
>+					if (failures == 0) {
>+						System.out.println(header);
>+					}
>+					failures++;
>+					System.out.println("\t\tconsistency breakage (64) for definitely null state " + State.states[i].name);
>+				}
>+				if (isDefinitelyUnknown
>+							&& (isDefinitelyNonNull || isDefinitelyNull
>+									|| isPotentiallyNull || isProtectedNonNull
>+									|| isProtectedNull)) {
>+					if (failures == 0) {
>+						System.out.println(header);
>+					}
>+					failures++;
>+					System.out.println("\t\tconsistency breakage (64) for definitely unknown state " + State.states[i].name);
>+				}
>+				if (isProtectedNonNull && !isDefinitelyNonNull
>+						|| isProtectedNull && !isDefinitelyNull
>+						|| i > 0 // not start
>+							&& !State.states[i].name.equals("pot. non null")						
>+							&& !(isDefinitelyNonNull || isDefinitelyNull
>+									|| isDefinitelyUnknown || isPotentiallyNull
>+									|| isPotentiallyUnknown || isProtectedNonNull
>+									|| isProtectedNull)) {
>+					if (failures == 0) {
>+						System.out.println(header);
>+					}
>+					failures++;
>+					System.out.println("\t\tconsistency breakage (64) for " + State.states[i].name);
>+				}
>+		}
>+	}
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+public void test2500_addInitializationsFrom_for_definites() {
>+	// when an added initialization is a def. something, it should
>+	// affect the left hand term as the markAsDefinite* method would
>+	// do
>+	int failures = 0;
>+	for (int i = 0; i < State.states.length; i++) {
>+		if (State.states[i].symbolic) {
>+			UnconditionalFlowInfoTestHarness source1, source2, result1, result2;
>+			source1 = UnconditionalFlowInfoTestHarness.
>+				testUnconditionalFlowInfo(State.states[i]);
>+			for (int j = 0; j < State.states.length; j++) {
>+				if (State.states[j].symbolic) {
>+					source2 = UnconditionalFlowInfoTestHarness.
>+						testUnconditionalFlowInfo(State.states[j]);
>+					result1 = (UnconditionalFlowInfoTestHarness) source1.copy();
>+					result2 = (UnconditionalFlowInfoTestHarness) source1.copy();
>+					if (source2.isDefinitelyNonNull(TestLocalVariableBinding.local0)) {
>+						if (! source2.isProtectedNonNull(TestLocalVariableBinding.local0)) {
>+							result1.markAsDefinitelyNonNull(TestLocalVariableBinding.local0);
>+						} else {
>+							continue;
>+						}
>+					}
>+					else if (source2.isDefinitelyNull(TestLocalVariableBinding.local0)) {
>+						if (! source2.isProtectedNull(TestLocalVariableBinding.local0)) {
>+							result1.markAsDefinitelyNull(TestLocalVariableBinding.local0);
>+						} else {
>+							continue;
>+						}
>+					}
>+					else if (source2.isDefinitelyUnknown(TestLocalVariableBinding.local0)) {
>+						result1.markAsDefinitelyUnknown(TestLocalVariableBinding.local0);
>+					}
>+					else if (source2.nullBit1 != 0) {
>+						if (failures == 0) {
>+							System.out.println("addInitializationsFrom_for_definites failures: "); //$NON-NLS-1$
>+						}
>+						failures++;
>+						System.out.println("\t\t" + State.states[j].name +
>+							" should answer true to at least one isDefinite* query");
>+						// PREMATURE move to specific queries test case
>+					}
>+					else {
>+						continue;
>+					}
>+					result2.addInitializationsFrom(source2);
>+					if (!result1.testEquals(result2)) {
>+						if (failures == 0) {
>+							System.out.println("addInitializationsFrom_for_definites failures: "); //$NON-NLS-1$
>+						}
>+						failures++;
>+						System.out.println("\t\t" + State.states[i].name + 
>+							" + " + State.states[j].name +
>+							" => " + result2.asState().name + 
>+							" instead of: " + result1.asState().name);
>+					}
>+				}
>+			}
>+		}
>+	}
>+	assertTrue("nb of failures: " + failures, failures == 0);
>+}
>+
>+// Use for coverage tests only. Needs specific instrumentation of code,
>+// that is controled by UnconditionalFlowInfo#coverageTestFlag.
>+// Note: coverage tests tend to fill the console with messages, and the
>+// instrumented code is slower, so never release code with active
>+// coverage tests.
>+private static int coveragePointsNb = 39;
>+
>+// PREMATURE reactivate coverage tests
>+// Coverage by state transition tables methods.
>+public void test2998_coverage() {
>+	if (UnconditionalFlowInfo.coverageTestFlag) {
>+		// sanity check: need to be sure that the tests execute properly when not
>+		// trying to check coverage
>+		UnconditionalFlowInfo.coverageTestId = 0;
>+		test0053_array();
>+		test0070_type_reference();
>+		test2050_markAsComparedEqualToNonNull();
>+		test2051_markAsComparedEqualToNull();
>+		test2055_markAsDefinitelyNonNull();
>+		test2056_markAsDefinitelyNull();
>+		test2057_markAsDefinitelyUnknown();
>+		test2060_addInitializationsFrom();
>+		test2061_addPotentialInitializationsFrom();
>+		test2062_mergedWith();
>+		// coverage check
>+		int failuresNb = 0;
>+		for (int i = 1; i <= coveragePointsNb; i++) {
>+			if (i == 11 || i == 12 || i == 14) {
>+				continue;
>+				// these can only be reached via a direct call to addPotentialNullInfoFrom,
>+				// which is not implemented in low level tests - all those go through
>+				// addPotentialInitsFrom
>+			}
>+			try {
>+				UnconditionalFlowInfo.coverageTestId = i;
>+				test0053_array();
>+				test0070_type_reference();
>+				test2050_markAsComparedEqualToNonNull();
>+				test2051_markAsComparedEqualToNull();
>+				test2055_markAsDefinitelyNonNull();
>+				test2056_markAsDefinitelyNull();
>+				test2057_markAsDefinitelyUnknown();
>+				test2060_addInitializationsFrom();
>+				test2061_addPotentialInitializationsFrom();
>+				test2062_mergedWith();
>+			}
>+			catch (AssertionFailedError e) {
>+				continue;
>+			}
>+			catch (AssertionFailedException e) {
>+				continue;
>+			}
>+			failuresNb++;
>+			System.out.println("Missing coverage point: " + i);
>+		}
>+		UnconditionalFlowInfo.coverageTestId = 0; // reset for other tests
>+		assertEquals(failuresNb + " missing coverage point(s)", failuresNb, 0);
>+	}
>+}
>+
>+// Coverage by code samples.
>+public void test2999_coverage() {
>+	if (UnconditionalFlowInfo.coverageTestFlag) {
>+		// sanity check: need to be sure that the tests execute properly when not
>+		// trying to check coverage
>+		UnconditionalFlowInfo.coverageTestId = 0;
>+		test0001_simple_local();
>+		test0053_array();
>+		test0070_type_reference();
>+		test0327_if_else();
>+		test0401_while();
>+		test0420_while();
>+		test0509_try_finally_embedded();
>+		test2000_flow_info();
>+		test2004_flow_info();
>+		test2008_flow_info();
>+		test2011_flow_info();
>+		test2013_flow_info();
>+		test2018_flow_info();
>+		test2019_flow_info();
>+		test2020_flow_info();
>+		// coverage check
>+		int failuresNb = 0;
>+		for (int i = 1; i <= coveragePointsNb; i++) {
>+			if (i < 3
>+				|| 4 +				|| 11 +				|| 16 +				|| i == 21
>+				|| 23 +				|| 29 +				|| 36 < i) { // TODO (maxime) complete coverage tests
>+				continue;
>+			}
>+			try {
>+				UnconditionalFlowInfo.coverageTestId = i;
>+				test0001_simple_local();
>+				test0053_array();
>+				test0070_type_reference();
>+				test0327_if_else();
>+				test0401_while();
>+				test0420_while();
>+				test0509_try_finally_embedded();
>+				test2000_flow_info();
>+				test2004_flow_info();
>+				test2008_flow_info();
>+				test2011_flow_info();
>+				test2013_flow_info();
>+				test2018_flow_info();
>+				test2019_flow_info();
>+				test2020_flow_info();
>+			}
>+			catch (AssertionFailedError e) {
>+				continue;
>+			}
>+			catch (AssertionFailedException e) {
>+				continue;
>+			}
>+			failuresNb++;
>+			System.out.println("Missing coverage point: " + i);
>+		}
>+		UnconditionalFlowInfo.coverageTestId = 0; // reset for other tests
>+		assertEquals(failuresNb + " missing coverage point(s)", failuresNb, 0);
>+	}
>+}
>+
>+// only works for info coded on bit 0 - least significant
>+String testCodedValueOf(long[] data) {
>+	int length;
>+	StringBuffer result = new StringBuffer(length = data.length);
>+	for (int i = 0; i < length; i++) {
>+		result.append(data[i] == 0 ? '0' : '1');
>+	}
>+	return result.toString();
>+}
>+
>+static String testStringValueOf(long[] data) {
>+	int length;
>+	StringBuffer result = new StringBuffer((length = data.length) * 2 + 1);
>+	result.append('{');
>+	for (int i = 0; i < length; i++) {
>+		if (i > 0) {
>+			result.append(',');
>+		}
>+		result.append(data[i]);
>+	}
>+	result.append('}');
>+	return result.toString();
>+}
>+}
>+
>+/**
>+ * A specific extension of LocalVariableBinding suitable for flow info 
>+ * manipulation at an implementation level.
>+ */
>+class TestLocalVariableBinding extends LocalVariableBinding {
>+	static class TestTypeBinding extends TypeBinding {
>+		public TestTypeBinding() {
>+			tagBits = 0L;
>+		}
>+		public char[] constantPoolName() {
>+			return null;
>+		}
>+		public PackageBinding getPackage() {
>+			return null;
>+		}
>+		public boolean isCompatibleWith(TypeBinding right) {
>+			return false;
>+		}
>+		public char[] qualifiedSourceName() {
>+			return null;
>+		}
>+		public char[] sourceName() {
>+			return null;
>+		}
>+		public char[] readableName() {
>+			return null;
>+		}
>+	}
>+	final static TypeBinding testTypeBinding = new TestTypeBinding();
>+	final static char [] testName = {'t', 'e', 's', 't'};
>+	TestLocalVariableBinding(int id) {
>+		super(testName, testTypeBinding, 0, false);
>+		this.id = id;
>+	}
>+	public Constant constant() {
>+		return Constant.NotAConstant;
>+	}
>+	static final TestLocalVariableBinding 
>+		local0 = new TestLocalVariableBinding(0),
>+		local64 = new TestLocalVariableBinding(64),
>+		local128 = new TestLocalVariableBinding(128);	
>+}
>+
>+/**
>+ * A class meant to augment 
>+ * @link{org.eclipse.jdt.internal.compiler.flow.UnconditionalFlowInfo} with
>+ * capabilities in the test domain. It especially provides factories to build
>+ * fake flow info instances for use in state transitions validation.
>+ */
>+/*
>+ * Moreover, this class defines the implementation of key operations for the
>+ * benefit of itself and NullInfoRegistryTestHarness. Given the fact that the
>+ * latter could not extend UnconditionalFlowInfoTestHarness and
>+ * NullInfoRegistry, the code is factorized into static methods.
>+ */
>+class UnconditionalFlowInfoTestHarness extends UnconditionalFlowInfo {
>+	int testPosition;
>+	// Interface
>+/**
>+ * Return the state represented by this.
>+ * @return the state represented by this
>+ */
>+NullReferenceImplTests.State asState() {
>+	return asState(this, 0);
>+}
>+
>+/**
>+ * Return the state represented by this for a variable encoded at a given position.
>+ * @param position - int the position of the considered variable
>+ * @return the state represented by this for a variable encoded at a given position
>+ */
>+NullReferenceImplTests.State asState(int position) {
>+	return asState(this, position);
>+}
>+
>+public FlowInfo copy() {
>+	UnconditionalFlowInfoTestHarness copy = 
>+		new UnconditionalFlowInfoTestHarness();
>+	copy.testPosition = this.testPosition;
>+	copy(this, copy);
>+	return copy;
>+}
>+
>+public void markAsDefinitelyNonNull(LocalVariableBinding local) {
>+	grow(local.id + this.maxFieldCount);
>+	super.markAsDefinitelyNonNull(local);
>+}
>+
>+public void markAsDefinitelyNull(LocalVariableBinding local) {
>+	grow(local.id + this.maxFieldCount);
>+	super.markAsDefinitelyNull(local);
>+}
>+
>+public void markAsDefinitelyUnknown(LocalVariableBinding local) {
>+	grow(local.id + this.maxFieldCount);
>+	super.markAsDefinitelyUnknown(local);
>+}
>+
>+/**
>+ * Return a fake unconditional flow info which bit fields represent the given
>+ * null bits for a local variable of id 0 within a class that would have no
>+ * field.
>+ * @param nullBits the bits that must be set, given in the same order as the
>+ * nullAssignment* fields in UnconditionalFlowInfo definition; use 0
>+ * for a bit that is not set, 1 else
>+ * @return a fake unconditional flow info which bit fields represent the
>+ * null bits given in parameter
>+ */
>+public static UnconditionalFlowInfoTestHarness testUnconditionalFlowInfo(
>+		long [] nullBits) {
>+	return testUnconditionalFlowInfo(nullBits, 0);
>+}
>+
>+/**
>+ * Return a fake unconditional flow info which bit fields represent the given
>+ * null bits for a local variable of id position within a class that would have 
>+ * no field.
>+ * @param nullBits the bits that must be set, given in the same order as the
>+ * nullAssignment* fields in UnconditionalFlowInfo definition; use 0
>+ * for a bit that is not set, 1 else
>+ * @param position the position of the variable within the bit fields; use
>+ * various values to test different parts of the bit fields, within
>+ * or beyond BitCacheSize
>+ * @return a fake unconditional flow info which bit fields represent the
>+ * null bits given in parameter
>+ */
>+public static UnconditionalFlowInfoTestHarness testUnconditionalFlowInfo(
>+		long [] nullBits, int position) {
>+ 	UnconditionalFlowInfoTestHarness result = 
>+ 		new UnconditionalFlowInfoTestHarness();
>+	result.testPosition = position;
>+	init(result, nullBits, position);
>+	return result;
>+}
>+
>+/**
>+ * Return a fake unconditional flow info which bit fields represent the given
>+ * state for a local variable of id 0 within a class that would have 
>+ * no field.
>+ * @param state - State the desired state for the variable
>+ * @return a fake unconditional flow info which bit fields represent the
>+ * state given in parameter
>+ */
>+public static UnconditionalFlowInfoTestHarness testUnconditionalFlowInfo(NullReferenceImplTests.State state) {
>+	return testUnconditionalFlowInfo(state, 0);
>+}
>+
>+/**
>+ * Return a fake unconditional flow info which bit fields represent the given
>+ * state for a local variable of id position within a class that would have 
>+ * no field.
>+ * @param state - State the desired state for the variable
>+ * @param position the position of the variable within the bit fields; use
>+ * various values to test different parts of the bit fields, within
>+ * or beyond BitCacheSize
>+ * @return a fake unconditional flow info which bit fields represent the
>+ * state given in parameter
>+ */
>+public static UnconditionalFlowInfoTestHarness testUnconditionalFlowInfo(
>+		NullReferenceImplTests.State state, int position) {
>+ 	UnconditionalFlowInfoTestHarness result = 
>+ 		new UnconditionalFlowInfoTestHarness();
>+ 	long[] nullBits = state.asLongArray();
>+	result.testPosition = position;
>+	init(result, nullBits, position);
>+	return result;
>+}
>+
>+/**
>+ * Return true iff this flow info can be considered as equal to the one passed
>+ * in parameter.
>+ * @param other the flow info to compare to
>+ * @return true iff this flow info compares equal to other
>+ */
>+public boolean testEquals(UnconditionalFlowInfo other) {
>+	return testEquals(this, other);
>+}
>+
>+/**
>+ * Return true iff this flow info can be considered as equal to the one passed
>+ * in parameter in respect with a single local variable which id would be
>+ * position in a class with no field.
>+ * @param other the flow info to compare to
>+ * @param position the position of the local to consider
>+ * @return true iff this flow info compares equal to other for a given local
>+ */
>+public boolean testEquals(UnconditionalFlowInfo other, int position) {
>+	return testEquals(this, other, position);
>+}
>+
>+/**
>+ * Return a string suitable for use as a representation of this flow info
>+ * within test series.
>+ * @return a string suitable for use as a representation of this flow info
>+ */
>+public String testString() {
>+	if (this == DEAD_END) {
>+		return "FlowInfo.DEAD_END"; //$NON-NLS-1$
>+	}
>+	return testString(this, this.testPosition);
>+}
>+
>+/**
>+ * Return a string suitable for use as a representation of this flow info
>+ * within test series.
>+ * @param position a position to consider instead of this flow info default
>+ * test position
>+ * @return a string suitable for use as a representation of this flow info
>+ */
>+public String testString(int position) {
>+	return testString(this, position);
>+}
>+	
>+	// Factorized implementation
>+static NullReferenceImplTests.State asState(UnconditionalFlowInfo zis, int position) {
>+	if ((zis.tagBits & NULL_FLAG_MASK) == 0) {
>+		return NullReferenceImplTests.State.start;
>+	}
>+	if (position < BitCacheSize) {
>+		return NullReferenceImplTests.State.fromLongValues(
>+				(zis.nullBit1 >> position) & 1,
>+				(zis.nullBit2 >> position) & 1,
>+				(zis.nullBit3 >> position) & 1,
>+				(zis.nullBit4 >> position) & 1,
>+				0,
>+				0);
>+	} 
>+ 	else {
>+		int vectorIndex = (position / BitCacheSize) - 1;
>+ position %= BitCacheSize;
>+ if (vectorIndex >= zis.extra[2].length) {
>+ 	return NullReferenceImplTests.State.start;
>+ }
>+		return NullReferenceImplTests.State.fromLongValues(
>+				(zis.extra[2][vectorIndex] >> position) & 1,
>+				(zis.extra[3][vectorIndex] >> position) & 1,
>+				(zis.extra[4][vectorIndex] >> position) & 1,
>+				(zis.extra[5][vectorIndex] >> position) & 1,
>+				0 //(zis.extra[6][vectorIndex] >> position) & 1,
>+				, 0 //(zis.extra[7][vectorIndex] >> position) & 1
>+				);
>+	}
>+}
>+
>+static void copy(UnconditionalFlowInfo source, UnconditionalFlowInfo target) {
>+	target.definiteInits = source.definiteInits;
>+	target.potentialInits = source.potentialInits;
>+	boolean hasNullInfo = (source.tagBits & NULL_FLAG_MASK) != 0;
>+	if (hasNullInfo) { 
>+		target.nullBit1 = source.nullBit1;
>+		target.nullBit2 = source.nullBit2;
>+		target.nullBit3 = source.nullBit3;
>+		target.nullBit4 = source.nullBit4;
>+//		target.nullBit5 = source.nullBit5;
>+//		target.nullBit6 = source.nullBit6;
>+	}
>+	target.tagBits = source.tagBits;
>+	target.maxFieldCount = source.maxFieldCount;
>+	if (source.extra != null) {
>+		int length;
>+ target.extra = new long[extraLength][];
>+		System.arraycopy(source.extra[0], 0, 
>+			(target.extra[0] = new long[length = source.extra[0].length]), 0, length);
>+		System.arraycopy(source.extra[1], 0, 
>+			(target.extra[1] = new long[length]), 0, length);
>+		if (hasNullInfo) {
>+ for (int j = 0; j < extraLength; j++) {
>+			 System.arraycopy(source.extra[j], 0, 
>+				 (target.extra[j] = new long[length]), 0, length);
>+ }
>+		}
>+		else {
>+ for (int j = 0; j < extraLength; j++) {
>+			 target.extra[j] = new long[length];
>+ }
>+		}
>+	}
>+}
>+
>+public void grow(int position) {
>+	int vectorIndex = ((position) / BitCacheSize) - 1;
>+	int length = vectorIndex + 1, oldLength;
>+	if (this.extra == null) {
>+		this.extra = new long[extraLength][];
>+		for (int j = 0; j < extraLength; j++) {
>+			this.extra[j] = new long[length];
>+		}
>+	} else if (length > (oldLength = this.extra[2].length)) {
>+		for (int j = 0; j < extraLength; j++) {
>+			System.arraycopy(this.extra[j], 0, 
>+				this.extra[j] = new long[length], 0, oldLength);
>+		}
>+	}
>+}
>+
>+static void init(UnconditionalFlowInfo zis, long [] nullBits, int position) {
>+	if (position < BitCacheSize) {
>+		zis.nullBit1 = nullBits[0] << position;
>+		zis.nullBit2 = nullBits[1] << position;
>+		zis.nullBit3 = nullBits[2] << position;
>+		zis.nullBit4 = nullBits[3] << position;
>+//		zis.nullBit5 = nullBits[4] << position;
>+//		zis.nullBit6 = nullBits[5] << position;
>+	}
>+ 	else {
>+		int vectorIndex = (position / BitCacheSize) - 1,
>+			length = vectorIndex + 1;
>+ position %= BitCacheSize;
>+ zis.extra = new long[extraLength][];
>+		zis.extra[0] = new long[length];
>+		zis.extra[1] = new long[length];
>+ for (int j = 2; j < extraLength; j++) {
>+		 zis.extra[j] = new long[length];
>+		 zis.extra[j][vectorIndex] = nullBits[j - 2] << position;
>+ }
>+	}
>+	if (nullBits[0] != 0 || nullBits[1] != 0
>+	 || nullBits[2] != 0 || nullBits[3] != 0
>+	 || nullBits[4] != 0 || nullBits[5] != 0) { 
>+		// cascade better than nullBits[0] | nullBits[1] | nullBits[2] | nullBits[3]
>+		// by 10%+
>+		// TODO (maxime) run stats to determine which is the better order
>+		zis.tagBits |= NULL_FLAG_MASK;
>+	}
>+	zis.maxFieldCount = 0;
>+}
>+
>+static boolean testEquals(UnconditionalFlowInfo zis, UnconditionalFlowInfo other) {
>+	if (zis.tagBits != other.tagBits) {
>+		return false;
>+	}
>+	if (zis.nullBit1 != other.nullBit1 
>+			|| zis.nullBit2 != other.nullBit2 
>+			|| zis.nullBit3 != other.nullBit3 
>+			|| zis.nullBit4 != other.nullBit4
>+			/* || zis.nullBit5 != other.nullBit5 
>+			|| zis.nullBit6 != other.nullBit6 */) {
>+		return false;
>+	}
>+	int left = zis.extra == null ? 0 : zis.extra[2].length,
>+			right = other.extra == null ? 0 : other.extra[2].length,
>+			both = 0, i;
>+	if (left > right) {
>+		both = right;
>+	}
>+	else {
>+		both = left;
>+	}
>+	for (i = 0; i < both ; i++) {
>+		for (int j = 2; j < extraLength; j++) { 
>+			if (zis.extra[j][i] != 
>+					other.extra[j][i]) {
>+				return false;
>+			}
>+		}
>+	}
>+	for (; i < left; i++) {
>+		for (int j = 2; j < extraLength; j++) { 
>+			if (zis.extra[j][i] != 0) {
>+				return false;
>+			}
>+		}
>+	}
>+	for (; i < right; i++) {
>+		for (int j = 2; j < extraLength; j++) { 
>+			if (other.extra[j][i] != 0) {
>+				return false;
>+			}
>+		}
>+	}
>+	return true;
>+}
>+
>+static boolean testEquals(UnconditionalFlowInfo zis, UnconditionalFlowInfo other,
>+		int position) {
>+	int vectorIndex = position / BitCacheSize - 1;
>+	if ((zis.tagBits & other.tagBits & NULL_FLAG_MASK) == 0) {
>+		return true;
>+	}
>+	long mask;
>+	if (vectorIndex < 0) {
>+		return ((zis.nullBit1 & (mask = (1L << position))) ^
>+					(other.nullBit1 & mask)) == 0 &&
>+				((zis.nullBit2 & mask) ^
>+					(other.nullBit2 & mask)) == 0 &&
>+				((zis.nullBit3 & mask) ^
>+					(other.nullBit3 & mask)) == 0 &&
>+				((zis.nullBit4 & mask) ^
>+					(other.nullBit4 & mask)) == 0 /* &&
>+				((zis.nullBit5 & mask) ^
>+					(other.nullBit5 & mask)) == 0 &&
>+				((zis.nullBit6 & mask) ^
>+					(other.nullBit6 & mask)) == 0 */;
>+	}
>+	else {
>+		int left = zis.extra == null ?
>+				0 :
>+				zis.extra[0].length;
>+		int right = other.extra == null ?
>+				0 :
>+				other.extra[0].length;
>+		int both = left < right ? left : right;
>+		if (vectorIndex < both) {
>+			mask = (1L << (position % BitCacheSize));
>+			for (int j = 2; j < extraLength; j++) {
>+				if (((zis.extra[j][vectorIndex] & mask) 
>+						^ (other.extra[j][vectorIndex] & mask)) != 0) {
>+					return false;
>+				}
>+			}
>+			return true;
>+		}
>+		if (vectorIndex < left) {
>+			return ((zis.extra[2][vectorIndex] |
>+					zis.extra[3][vectorIndex] |
>+					zis.extra[4][vectorIndex] |
>+					zis.extra[5][vectorIndex] |
>+					zis.extra[6][vectorIndex] |
>+					zis.extra[7][vectorIndex]) &
>+					(1L << (position % BitCacheSize))) == 0;
>+		}
>+		return ((other.extra[2][vectorIndex] |
>+				other.extra[3][vectorIndex] |
>+				other.extra[4][vectorIndex] |
>+				other.extra[5][vectorIndex] |
>+				other.extra[6][vectorIndex] |
>+				other.extra[7][vectorIndex]) &
>+				(1L << (position % BitCacheSize))) == 0;
>+	}
>+}
>+
>+static String testString(UnconditionalFlowInfo zis, int position) {
>+	if (zis == DEAD_END) {
>+		return "FlowInfo.DEAD_END"; //$NON-NLS-1$
>+	}
>+	if (position < BitCacheSize) {
>+		return "{" + (zis.nullBit1 >> position) //$NON-NLS-1$
>+					+ "," + (zis.nullBit2 >> position) //$NON-NLS-1$
>+					+ "," + (zis.nullBit3 >> position) //$NON-NLS-1$
>+					+ "," + (zis.nullBit4 >> position) //$NON-NLS-1$
>+//					+ "," + (zis.nullBit5 >> position) //$NON-NLS-1$
>+//					+ "," + (zis.nullBit6 >> position) //$NON-NLS-1$
>+					+ "}"; //$NON-NLS-1$
>+	}
>+	else {
>+		int vectorIndex = position / BitCacheSize - 1,
>+			shift = position % BitCacheSize;
>+			return "{" + (zis.extra[2][vectorIndex] //$NON-NLS-1$
>+			 >> shift) 
>+						+ "," + (zis.extra[3][vectorIndex] //$NON-NLS-1$
>+						 >> shift)
>+						+ "," + (zis.extra[4][vectorIndex] //$NON-NLS-1$
>+						 >> shift)
>+						+ "," + (zis.extra[5][vectorIndex] //$NON-NLS-1$
>+						 >> shift)
>+//						+ "," + (zis.extra[6][vectorIndex] //$NON-NLS-1$
>+//						 >> shift)
>+//						+ "," + (zis.extra[7][vectorIndex] //$NON-NLS-1$
>+//						 >> shift)
>+						+ "}"; //$NON-NLS-1$
>+	}
>+}
>+}
>+/**
>+ * A class meant to augment 
>+ * @link{org.eclipse.jdt.internal.compiler.flow.NullInfoRegistry} with
>+ * capabilities in the test domain. It especially provides factories to build
>+ * fake flow info instances for use in state transitions validation.
>+ */
>+/*
>+ * The reason why UnconditionalFlowInfoTestHarness and this class were 
>+ * separated is that NullInfoRegistry redefines part of the markAs* methods,
>+ * in effect preventing a harness extending NullInfoRegistry to access 
>+ * UnconditionalFlowInfo implementations of the said methods.
>+ */
>+class NullInfoRegistryTestHarness extends NullInfoRegistry {
>+	private int testPosition;
>+
>+private NullInfoRegistryTestHarness() {
>+	super(FlowInfo.DEAD_END);
>+}
>+	
>+	// Interface
>+/**
>+ * Return the state represented by this.
>+ * @return the state represented by this
>+ */
>+NullReferenceImplTests.State asState() {
>+	return UnconditionalFlowInfoTestHarness.asState(this, 0);
>+}
>+
>+/**
>+ * Return the state represented by this for a variable encoded at a given position.
>+ * @param position - int the position of the considered variable
>+ * @return the state represented by this for a variable encoded at a given position
>+ */
>+NullReferenceImplTests.State asState(int position) {
>+	return UnconditionalFlowInfoTestHarness.asState(this, position);
>+}
>+
>+public FlowInfo copy() {
>+	NullInfoRegistryTestHarness copy = 
>+		new NullInfoRegistryTestHarness();
>+	copy.testPosition = this.testPosition;
>+	UnconditionalFlowInfoTestHarness.copy(this, copy);
>+	return copy;
>+}
>+
>+/**
>+ * Return a fake null info registry derived from an unconditional flow
>+ * info.
>+ * @param upstream - UnconditionalFlowInfoTestHarness the upstream flow info
>+ * @return a fake null info registry derived from upstream
>+ */
>+public static NullInfoRegistryTestHarness testNullInfoRegistry(
>+		UnconditionalFlowInfoTestHarness upstream) {
>+	NullInfoRegistry nullInfoRegistry = new NullInfoRegistry(upstream);
>+ 	NullInfoRegistryTestHarness result = 
>+ 		new NullInfoRegistryTestHarness();
>+	result.testPosition = upstream.testPosition;
>+	if (result.testPosition < BitCacheSize) {
>+		result.nullBit1 = nullInfoRegistry.nullBit1;
>+		result.nullBit2 = nullInfoRegistry.nullBit2;
>+		result.nullBit3 = nullInfoRegistry.nullBit3;
>+		result.nullBit4 = nullInfoRegistry.nullBit4;
>+//		result.nullBit5 = nullInfoRegistry.nullBit5;
>+//		result.nullBit6 = nullInfoRegistry.nullBit6;
>+	} 
>+ 	else if ((nullInfoRegistry.tagBits & NULL_FLAG_MASK) != 0){
>+		int vectorIndex = (result.testPosition / BitCacheSize) - 1,
>+			length = vectorIndex + 1;
>+ result.extra = new long[extraLength][];
>+		result.extra[0] = new long[length];
>+		result.extra[1] = new long[length];
>+ for (int j = 2; j < extraLength; j++) {
>+		 result.extra[j] = new long[length];
>+		 result.extra[j][vectorIndex] = nullInfoRegistry.extra[j][vectorIndex];
>+ }
>+	}
>+	if ((nullInfoRegistry.tagBits & NULL_FLAG_MASK) != 0) { 
>+		result.tagBits |= NULL_FLAG_MASK;
>+	}
>+	result.maxFieldCount = 0;
>+	return result;
>+}
>+
>+/**
>+ * Return true iff this flow info can be considered as equal to the one passed
>+ * in parameter.
>+ * @param other the flow info to compare to
>+ * @return true iff this flow info compares equal to other
>+ */
>+public boolean testEquals(UnconditionalFlowInfo other) {
>+	return UnconditionalFlowInfoTestHarness.testEquals(this, other);
>+}
>+
>+/**
>+ * Return true iff this flow info can be considered as equal to the one passed
>+ * in parameter in respect with a single local variable which id would be
>+ * position in a class with no field.
>+ * @param other the flow info to compare to
>+ * @param position the position of the local to consider
>+ * @return true iff this flow info compares equal to other for a given local
>+ */
>+public boolean testEquals(UnconditionalFlowInfo other, int position) {
>+	return UnconditionalFlowInfoTestHarness.testEquals(this, other, position);
>+}
>+
>+/**
>+ * Return a string suitable for use as a representation of this flow info
>+ * within test series.
>+ * @return a string suitable for use as a representation of this flow info
>+ */
>+public String testString() {
>+	if (this == DEAD_END) {
>+		return "FlowInfo.DEAD_END"; //$NON-NLS-1$
>+	}
>+	return UnconditionalFlowInfoTestHarness.testString(this, this.testPosition);
>+}
>+
>+/**
>+ * Return a string suitable for use as a representation of this flow info
>+ * within test series.
>+ * @param position a position to consider instead of this flow info default
>+ * test position
>+ * @return a string suitable for use as a representation of this flow info
>+ */
>+public String testString(int position) {
>+	return UnconditionalFlowInfoTestHarness.testString(this, position);
>+}
>+}
>+
>+interface CodeAnalysis {
>+	public static final String
>+		definitionStartMarker = "DEFINITION START",
>+		definitionEndMarker = "DEFINITION END",
>+		initializerStartMarker = "INITIALIZER START",
>+		initializerEndMarker = "INITIALIZER END";
>+}
>+class TransitiveClosureHolder {
>+static class Element {
>+	NullReferenceImplTests.State value;
>+	boolean alreadyKnown;
>+	Element(NullReferenceImplTests.State value) {
>+		if (value == null) {
>+			throw new IllegalArgumentException("not a valid element");
>+		}
>+		this.value = value;
>+	}
>+}
>+Map elements = new TreeMap();
>+public TransitiveClosureHolder() {
>+	Element start = new Element(NullReferenceImplTests.State.start);
>+	this.elements.put(start.value, start);
>+}
>+void add(NullReferenceImplTests.State value) {
>+	if (value == null) {
>+		throw new IllegalArgumentException("not a valid state");
>+	}
>+	if (! this.elements.containsKey(value)) {
>+		this.elements.put(value, new Element(value));
>+	}
>+}
>+void add(NullReferenceImplTests.State[] values) {
>+	if (values == null) {
>+		throw new IllegalArgumentException("not a valid states set");
>+	}
>+	for (int i = 0, length = values.length; i < length; i++) {
>+		add(values[i]);
>+	}
>+}
>+NullReferenceImplTests.State[] asArray() {
>+	int length;
>+	NullReferenceImplTests.State[] result = new NullReferenceImplTests.State[length = this.elements.size()];
>+	Iterator elementsIterator = this.elements.keySet().iterator();
>+	for (int j = 0; j < length; j++) {
>+		result[j] = (NullReferenceImplTests.State) elementsIterator.next();
>+	}
>+	return result;
>+}
>+NullReferenceImplTests.State[] notAlreadyKnowns() {
>+	List resultAccumulator = new ArrayList(this.elements.size());
>+	Iterator i = this.elements.values().iterator();
>+	Element current;
>+	while (i.hasNext()) {
>+		if (! (current = (Element) i.next()).alreadyKnown) {
>+			resultAccumulator.add(current.value);
>+		}
>+	}
>+	int length;
>+	NullReferenceImplTests.State[] result = new NullReferenceImplTests.State[length = resultAccumulator.size()];
>+	for (int j = 0; j < length; j++) {
>+		result[j] = (NullReferenceImplTests.State) resultAccumulator.get(j);
>+	}
>+	return result;
>+}
>+void markAllAsAlreadyKnown() {
>+	Iterator i = this.elements.values().iterator();
>+	while (i.hasNext()) {
>+		((Element) i.next()).alreadyKnown = true;
>+	}
>+}
>+public String toString() {
>+	StringBuffer output = new StringBuffer();
>+	output.append("Transitive closure:\n");
>+	SortedMap sorted = new TreeMap(this.elements);
>+	Iterator i = sorted.keySet().iterator();
>+	while (i.hasNext()) {
>+		output.append(i.next().toString());
>+		output.append('\n');
>+	}
>+	return output.toString();
>+}
>+}
>+
>+// PREMATURE segregate pure tooling into a separate project, keep tests only here
>+/**
>+ * The Generator class is meant to generate the tabular data needed by the
>+ * flow information implementation level tests. While the tests should ensure
>+ * non regression by leveraging their initialization tables only, any change 
>+ * into the flow information logic or encoding is due to yield considerable
>+ * changes into the literal values sets of the initializers themselves. 
>+ * Tooling the production of those literals buys us flexibility.
>+ * {@link #printHelp printHelp} for details.
>+ */
>+class Generator {
>+static NullReferenceImplTests.State[] computeTransitiveClosure() {
>+	TransitiveClosureHolder transitiveClosure = new TransitiveClosureHolder();
>+	NullReferenceImplTests.State[] unknowns;
>+	unknowns = transitiveClosure.notAlreadyKnowns();
>+	while (unknowns.length != 0) {
>+		transitiveClosure.markAllAsAlreadyKnown();
>+		for (int i = 0, length = NullReferenceImplTransformations.transformations.length;	i < length; i ++) {
>+			transitiveClosure.add(
>+				NullReferenceImplTransformations.transformations[i].
>+					computeOutputs(transitiveClosure.asArray()));
>+		}
>+		unknowns = transitiveClosure.notAlreadyKnowns();
>+	} 
>+	return transitiveClosure.asArray();
>+}
>+public static void main(String[] args) {
>+	if (args.length == 0) {
>+		printHelp(false);
>+		System.exit(1);
>+	}
>+	switch (args.length) {
>+		case 1:
>+			if (args[0].equals("--help")) {
>+				printHelp(true);
>+				System.exit(0);
>+			}
>+			else {
>+				printHelp(false);
>+				System.exit(1);
>+			}
>+		case 2:
>+			if (args[0].equals("--printTruthTables")) {
>+				File outputDir = new File(args[1]);
>+				if (outputDir.isDirectory()) {
>+					for (int i = 0, length = NullReferenceImplTransformations.transformations.length; i < length; i++) {
>+						NullReferenceImplTransformations.transformations[i].printTruthTables(outputDir);
>+					}
>+				}
>+				else {
>+					// PREMATURE error handling
>+				}
>+				System.exit(0);
>+			}
>+			else {
>+				printHelp(false);
>+				System.exit(1);
>+			}
>+		case 3:
>+			if (args[0].equals("--reinitializeFromComputedValues")) {
>+				reinitializeFromComputedValues(args[1], args[2]);
>+				System.out.println("Generator generated new file into " + args[2]);
>+				System.exit(0);
>+			}
>+		case 5:
>+			if (args[0].equals("--reinitializeFromComments")) {
>+				reinitializeFromComments(args[1], args[2], args[3], args[4]);
>+				System.out.println("Generator generated new files into " + args[2]
>+					+ " and " + args[4]);
>+				System.exit(0);
>+			}
>+		default:
>+			printHelp(false);
>+			System.exit(1);
>+	}
>+}
>+	
>+private static void reinitializeFromComments(
>+		String statesSource, String statesTarget,
>+		String transformationsSource, String transformationsTarget) {
>+	if (statesSource.equals(transformationsSource) ||
>+			statesTarget.equals(transformationsTarget)) {
>+		throw new RuntimeException();
>+	}
>+	try {
>+		BufferedReader in;
>+		BufferedWriter out;
>+		NullReferenceImplTests.State.reinitializeFromComment(
>+			in = new BufferedReader(
>+				new FileReader(statesSource)), 
>+			out = new BufferedWriter(new FileWriter(statesTarget)));
>+		in.close();
>+		out.close();
>+		File[] tempFiles = new File[2];
>+		tempFiles[0] = File.createTempFile("generator", "java");
>+		tempFiles[1] = File.createTempFile("generator", "java");
>+		NullReferenceImplTransformations.transformations[0].reinitializeFromComments(
>+			in = new BufferedReader(
>+				new FileReader(transformationsSource)), 
>+			out = new BufferedWriter(new FileWriter(tempFiles[0])));
>+		in.close();
>+		out.close();
>+		int i, length;
>+		for (i = 1, length = NullReferenceImplTransformations.transformations.length - 1; i < length; i++) {
>+			NullReferenceImplTransformations.transformations[i].reinitializeFromComments(
>+				in = new BufferedReader(
>+					new FileReader(tempFiles[(i + 1) % 2])), 
>+				out = new BufferedWriter(new FileWriter(tempFiles[i % 2])));
>+			in.close();
>+			out.close();
>+		}
>+		NullReferenceImplTransformations.transformations[i].reinitializeFromComments(
>+			in = new BufferedReader(
>+				new FileReader(tempFiles[(i + 1) % 2])), 
>+			out = new BufferedWriter(new FileWriter(transformationsTarget)));
>+		in.close();
>+		out.close();
>+	} catch (Throwable t) {
>+		System.err.println("Generator error:");
>+		t.printStackTrace(System.err);
>+		System.exit(2);
>+	}
>+}
>+
>+private static void reinitializeFromComputedValues(String source, String target) {
>+	for (int i = 0, length = NullReferenceImplTransformations.transformations.length;
>+			i < length; i++) {
>+		NullReferenceImplTransformations.transformations[i].hydrate();
>+	}
>+	NullReferenceImplTests.State[] transitiveClosure = computeTransitiveClosure();
>+	try {
>+		BufferedReader in;
>+		BufferedWriter out;
>+		File[] tempFiles = new File[2];
>+		tempFiles[0] = File.createTempFile("generator", "java");
>+		tempFiles[1] = File.createTempFile("generator", "java");
>+		NullReferenceImplTransformations.transformations[0].reinitializeFromComputedValues(
>+			in = new BufferedReader(
>+				new FileReader(source)), 
>+			out = new BufferedWriter(new FileWriter(tempFiles[0])),
>+			transitiveClosure);
>+		in.close();
>+		out.close();
>+		int i, length;
>+		for (i = 1, length = NullReferenceImplTransformations.transformations.length - 1; i < length; i++) {
>+			NullReferenceImplTransformations.transformations[i].reinitializeFromComputedValues(
>+				in = new BufferedReader(
>+					new FileReader(tempFiles[(i + 1) % 2])), 
>+				out = new BufferedWriter(new FileWriter(tempFiles[i % 2])),
>+				transitiveClosure);
>+			in.close();
>+			out.close();
>+		}
>+		NullReferenceImplTransformations.transformations[i].reinitializeFromComputedValues(
>+			in = new BufferedReader(
>+				new FileReader(tempFiles[(i + 1) % 2])), 
>+			out = new BufferedWriter(new FileWriter(target)),
>+			transitiveClosure);
>+		in.close();
>+		out.close();
>+	} catch (Throwable t) {
>+		System.err.println("Generator error:");
>+		t.printStackTrace(System.err);
>+		System.exit(2);
>+	}
>+}
>+
>+private static void printHelp(boolean longText) {
>+	if (longText) {
>+		System.out.println(
>+			"Generator use cases\n" +
>+			" - when a brand new logic is experimented for the transitions, the best\n" +
>+			" way to go is to write explicit (inefficient) transformation code within\n" +
>+			" UnconditionalFlowInfo, then generate the literal initializers from\n" +
>+			" there; use the command\n" +
>+			" --reinitializeFromComputedValues <source file> <target file>\n" +
>+			" to this effect; in case of inconsistencies or errors, messages are\n" +
>+			" printed to the error output stream and the result should be considered as non reliable;\n" +
>+			" - when only a few changes are made to state names or a specific\n" +
>+			" transitions, it should be possible to get the test initializers fixed\n" +
>+			" before UnconditionalFlowInfo implements those changes; use the command\n" +
>+	 " --reinitializeFromComments <states source file> <states target file> <transformations source file> <transformations target file>\n" +
>+	 " to this effect;\n" +
>+	 " - the same command can be used when, while the semantics of the system\n" +
>+	 " are unchanged, the encoding is modified; it should then produce the\n" +
>+	 " initializers according to the new encoding, as defined by the comment\n" +
>+	 " for State.states, and the transformations as defined by their\n" +
>+	 " respective comment;\n" +
>+	 " - when a given encoding is retained, its optimization may leverage truth\n" +
>+	 " tables; use the --printTruthTables command to this effect.\n" +
>+	 " \n\n");
>+		printHelp(false);
>+	}
>+	else {
>+		System.out.println(
>+	 "Usage:\n" +
>+	 "Generator --help\n" +
>+	 " prints a more detailed help message\n" +
>+	 "Generator --printTruthTables\n" +
>+	 " prints the truth tables of the transformations\n" +
>+	 "Generator --reinitializeFromComments <source file> <target file>\n" +
>+	 " generates into target file a copy of source file into which\n" +
>+	 " transformations initializers have been reset from their definitions\n" +
>+			"Generator --reinitializeFromComputedValues <source file> <target file>\n" +
>+	 " generates into target file a copy of source file into which\n" +
>+	 " transformations definitions and initializers have been reset\n" +
>+	 " according to the behavior of the current UnconditionalFlowInfo\n"
>+	 );
>+	}
>+}
>+}
>+

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Attachments on bug 127570: 39168