### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core.tests.compiler
Index: src/org/eclipse/jdt/core/tests/compiler/regression/GenericTypeTest.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/GenericTypeTest.java,v
retrieving revision 1.578
diff -u -r1.578 GenericTypeTest.java
--- src/org/eclipse/jdt/core/tests/compiler/regression/GenericTypeTest.java	8 Jan 2007 14:48:01 -0000	1.578
+++ src/org/eclipse/jdt/core/tests/compiler/regression/GenericTypeTest.java	9 Jan 2007 16:15:50 -0000
@@ -35789,47 +35789,37 @@
 			"}", // =================
 		},
 		"----------\n" + 
-		"1. WARNING in Y.java (at line 2)\n" + 
-		"	Z z1 = z1;\n" + 
-		"	  ^^^^^^^\n" + 
-		"The assignment to variable z1 has no effect\n" + 
-		"----------\n" + 
-		"2. ERROR in Y.java (at line 2)\n" + 
+		"1. ERROR in Y.java (at line 2)\n" + 
 		"	Z z1 = z1;\n" + 
 		"	       ^^\n" + 
 		"Cannot reference a field before it is defined\n" + 
 		"----------\n" + 
-		"3. WARNING in Y.java (at line 3)\n" + 
-		"	Z[] z2 = z2;\n" + 
-		"	    ^^^^^^^\n" + 
-		"The assignment to variable z2 has no effect\n" + 
-		"----------\n" + 
-		"4. ERROR in Y.java (at line 3)\n" + 
+		"2. ERROR in Y.java (at line 3)\n" + 
 		"	Z[] z2 = z2;\n" + 
 		"	         ^^\n" + 
 		"Cannot reference a field before it is defined\n" + 
 		"----------\n" + 
-		"5. ERROR in Y.java (at line 6)\n" + 
+		"3. ERROR in Y.java (at line 6)\n" + 
 		"	E e0 = es[0];\n" + 
 		"	       ^^\n" + 
 		"Cannot reference a field before it is defined\n" + 
 		"----------\n" + 
-		"6. ERROR in Y.java (at line 7)\n" + 
+		"4. ERROR in Y.java (at line 7)\n" + 
 		"	E e = e;\n" + 
 		"	      ^\n" + 
 		"Cannot reference a field before it is defined\n" + 
 		"----------\n" + 
-		"7. ERROR in Y.java (at line 8)\n" + 
+		"5. ERROR in Y.java (at line 8)\n" + 
 		"	E[] es = es;\n" + 
 		"	         ^^\n" + 
 		"Cannot reference a field before it is defined\n" + 
 		"----------\n" + 
-		"8. ERROR in Y.java (at line 9)\n" + 
+		"6. ERROR in Y.java (at line 9)\n" + 
 		"	E e2 = e2.e;\n" + 
 		"	       ^^^^\n" + 
 		"Cannot reference a field before it is defined\n" + 
 		"----------\n" + 
-		"9. ERROR in Y.java (at line 9)\n" + 
+		"7. ERROR in Y.java (at line 9)\n" + 
 		"	E e2 = e2.e;\n" + 
 		"	       ^^^^\n" + 
 		"e2.e cannot be resolved or is not a field\n" + 
@@ -35948,17 +35938,12 @@
 		"	  ^\n" + 
 		"The field T.t is hiding another local variable defined in an enclosing type scope\n" + 
 		"----------\n" + 
-		"3. WARNING in X.java (at line 5)\n" + 
-		"	T t = t;\n" + 
-		"	  ^^^^^\n" + 
-		"The assignment to variable t has no effect\n" + 
-		"----------\n" + 
-		"4. ERROR in X.java (at line 5)\n" + 
+		"3. ERROR in X.java (at line 5)\n" + 
 		"	T t = t;\n" + 
 		"	      ^\n" + 
 		"Cannot reference a field before it is defined\n" + 
 		"----------\n" + 
-		"5. WARNING in X.java (at line 7)\n" + 
+		"4. WARNING in X.java (at line 7)\n" + 
 		"	class U {\n" + 
 		"	      ^\n" + 
 		"The type U is hiding the type X.U\n" + 
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/ast/ASTNode.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/ASTNode.java,v
retrieving revision 1.77
diff -u -r1.77 ASTNode.java
--- compiler/org/eclipse/jdt/internal/compiler/ast/ASTNode.java	16 Dec 2006 20:35:20 -0000	1.77
+++ compiler/org/eclipse/jdt/internal/compiler/ast/ASTNode.java	9 Jan 2007 16:15:52 -0000
@@ -52,7 +52,7 @@
 	public final static int Bit27 = 0x4000000; 			// parenthesis count (expression)
 	public final static int Bit28 = 0x8000000; 			// parenthesis count (expression)
 	public final static int Bit29 = 0x10000000; 		// parenthesis count (expression)
-	public final static int Bit30 = 0x20000000; 		// elseif (if statement) | try block exit (try statement) | fall-through (case statement)
+	public final static int Bit30 = 0x20000000; 		// elseif (if statement) | try block exit (try statement) | fall-through (case statement) | ignore no effect assign (expression ref)
 	public final static int Bit31 = 0x40000000; 		// local declaration reachable (local decl) | ignore raw type check (type ref) | discard entire assignment (assignment)
 	public final static int Bit32 = 0x80000000; 		// reachable (statement)
 
@@ -145,6 +145,7 @@
 	// for expression 
 	public static final int ParenthesizedSHIFT = 21; // Bit22 -> Bit29
 	public static final int ParenthesizedMASK = Bit22|Bit23|Bit24|Bit25|Bit26|Bit27|Bit28|Bit29; // 8 bits for parenthesis count value (max. 255)
+	public static final int IgnoreNoEffectAssignCheck = Bit30;
 
 	// for references on lhs of assignment
 	public static final int IsStrictlyAssigned = Bit14; // set only for true assignments, as opposed to compound ones
Index: compiler/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java,v
retrieving revision 1.92
diff -u -r1.92 SingleNameReference.java
--- compiler/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java	23 Nov 2006 08:44:46 -0000	1.92
+++ compiler/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java	9 Jan 2007 16:15:52 -0000
@@ -202,6 +202,7 @@
 				&& fieldBinding.id >= methodScope.lastVisibleFieldID
 				&& (!fieldBinding.isStatic() || methodScope.isStatic)) {
 			scope.problemReporter().forwardReference(this, 0, methodScope.enclosingSourceType());
+			this.bits |= ASTNode.IgnoreNoEffectAssignCheck;
 		}
 		return fieldBinding.type;
 	
Index: compiler/org/eclipse/jdt/internal/compiler/ast/Assignment.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/Assignment.java,v
retrieving revision 1.74
diff -u -r1.74 Assignment.java
--- compiler/org/eclipse/jdt/internal/compiler/ast/Assignment.java	28 Oct 2006 04:11:27 -0000	1.74
+++ compiler/org/eclipse/jdt/internal/compiler/ast/Assignment.java	9 Jan 2007 16:15:52 -0000
@@ -99,6 +99,9 @@
 }
 
 public static Binding getDirectBinding(Expression someExpression) {
+	if ((someExpression.bits & ASTNode.IgnoreNoEffectAssignCheck) != 0) {
+		return null;
+	}
 	if (someExpression instanceof SingleNameReference) {
 		return ((SingleNameReference)someExpression).binding;
 	} else if (someExpression instanceof FieldReference) {