### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
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 1.125
diff -u -r1.125 SingleNameReference.java
--- compiler/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java	22 Oct 2010 22:42:55 -0000	1.125
+++ compiler/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java	25 Oct 2010 19:20:29 -0000
@@ -422,6 +422,10 @@
 				break;
 			case Binding.LOCAL : // reading a local
 				LocalVariableBinding localBinding = (LocalVariableBinding) this.binding;
+				if (localBinding.resolvedPosition == -1) {
+					codeStream.recordPositionsFrom(pc, this.sourceStart);
+					return;
+				}
 				if (!valueRequired && (this.implicitConversion & TypeIds.UNBOXING) == 0) {
 					// if no valueRequired, optimize out entire gen
 					codeStream.recordPositionsFrom(pc, this.sourceStart);
@@ -525,6 +529,9 @@
 		case Binding.LOCAL : // assigning to a local variable (cannot assign to outer local)
 			LocalVariableBinding localBinding = (LocalVariableBinding) this.binding;
 			// using incr bytecode if possible
+			if (localBinding.resolvedPosition == -1) {
+				return;
+			}
 			switch (localBinding.type.id) {
 				case T_JavaLangString :
 					codeStream.generateStringConcatenationAppend(currentScope, this, expression);
@@ -687,6 +694,9 @@
 			// https://bugs.eclipse.org/bugs/show_bug.cgi?id=185682
 			// check if postIncrement is the only usage of this local
 			Reference.reportOnlyUselesslyReadLocal(currentScope, localBinding, valueRequired);
+			if (localBinding.resolvedPosition == -1) {
+				return;
+			}
 
 			// using incr bytecode if possible
 			if (localBinding.type == TypeBinding.INT) {
Index: compiler/org/eclipse/jdt/internal/compiler/lookup/BlockScope.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/BlockScope.java,v
retrieving revision 1.119
diff -u -r1.119 BlockScope.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/BlockScope.java	13 Sep 2010 13:26:20 -0000	1.119
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/BlockScope.java	25 Oct 2010 19:20:29 -0000
@@ -191,7 +191,7 @@
 			LocalVariableBinding local = this.locals[ilocal]; // if no local at all, will be locals[ilocal]==null
 
 			// check if variable is actually used, and may force it to be preserved
-			boolean generateCurrentLocalVar = (local.useFlag != LocalVariableBinding.UNUSED && local.constant() == Constant.NotAConstant);
+			boolean generateCurrentLocalVar = (local.useFlag > LocalVariableBinding.UNUSED && local.constant() == Constant.NotAConstant);
 
 			// do not report fake used variable
 			if (local.useFlag == LocalVariableBinding.UNUSED
Index: eval/org/eclipse/jdt/internal/eval/CodeSnippetSingleNameReference.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/eval/org/eclipse/jdt/internal/eval/CodeSnippetSingleNameReference.java,v
retrieving revision 1.59
diff -u -r1.59 CodeSnippetSingleNameReference.java
--- eval/org/eclipse/jdt/internal/eval/CodeSnippetSingleNameReference.java	22 Oct 2010 22:42:56 -0000	1.59
+++ eval/org/eclipse/jdt/internal/eval/CodeSnippetSingleNameReference.java	25 Oct 2010 19:20:29 -0000
@@ -270,6 +270,10 @@
 				break;
 			case Binding.LOCAL : // reading a local
 				LocalVariableBinding localBinding = (LocalVariableBinding) this.binding;
+				if (localBinding.resolvedPosition == -1) {
+					codeStream.recordPositionsFrom(pc, this.sourceStart);
+					return;
+				}
 				if (!valueRequired)
 					break;
 				// outer local?
@@ -340,6 +344,9 @@
 			break;
 		case Binding.LOCAL : // assigning to a local variable (cannot assign to outer local)
 			LocalVariableBinding localBinding = (LocalVariableBinding) this.binding;
+			if (localBinding.resolvedPosition == -1) {
+				return;
+			}
 			// using incr bytecode if possible
 			switch (localBinding.type.id) {
 				case T_JavaLangString :