### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/ast/CompilationUnitDeclaration.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/CompilationUnitDeclaration.java,v
retrieving revision 1.92
diff -u -r1.92 CompilationUnitDeclaration.java
--- compiler/org/eclipse/jdt/internal/compiler/ast/CompilationUnitDeclaration.java	5 May 2011 14:29:58 -0000	1.92
+++ compiler/org/eclipse/jdt/internal/compiler/ast/CompilationUnitDeclaration.java	6 May 2011 13:18:44 -0000
@@ -215,7 +215,9 @@
 			CategorizedProblem[] problems = this.compilationResult.problems;
 			int problemCount = this.compilationResult.problemCount;
 			for (int i = 0; i < problemCount; i++) {
-				if (problems[i].getID() == IProblem.LocalVariableIsNeverUsed) {
+				CategorizedProblem currentProblem = problems[i];
+				if (currentProblem.getID() == IProblem.LocalVariableIsNeverUsed
+						&& currentProblem.isWarning()) {
 					problems[i] = null;
 					removed++;
 				}
@@ -299,7 +301,9 @@
 	if (remainingErrors > 0) {
 		for (int i = 0; i < problemCount; i++) {
 			CategorizedProblem problem;
-			if ((problem = problems[i]) != null && problem.getID() == IProblem.LocalVariableIsNeverUsed) {
+			if ((problem = problems[i]) != null
+					&& problem.getID() == IProblem.LocalVariableIsNeverUsed
+					&& problem.isWarning()) {
 				problems[i] = null;
 				removed++;
 			}
#P org.eclipse.jdt.core.tests.compiler
Index: src/org/eclipse/jdt/core/tests/compiler/regression/LocalVariableTest.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/LocalVariableTest.java,v
retrieving revision 1.19
diff -u -r1.19 LocalVariableTest.java
--- src/org/eclipse/jdt/core/tests/compiler/regression/LocalVariableTest.java	22 Oct 2010 22:42:32 -0000	1.19
+++ src/org/eclipse/jdt/core/tests/compiler/regression/LocalVariableTest.java	6 May 2011 13:18:46 -0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2005, 2010 IBM Corporation and others.
+ * Copyright (c) 2005, 2011 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
@@ -714,6 +714,32 @@
 		// javac options
 		JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */);
 }
+//https://bugs.eclipse.org/bugs/show_bug.cgi?id=343621
+public void test021() {
+	Map options = getCompilerOptions();
+	options.put(CompilerOptions.OPTION_ReportUnusedLocal, CompilerOptions.ERROR);
+	runNegativeTest(
+		new String[] { /* test files */
+			"X.java",
+			"public class X {\n" + 
+			"	public Object[] foo() {\n" + 
+			"		Object[] i, j= new Object[0];\n" + 
+			"		i= j = null;\n" + 
+			"		i= (new Object[] { null, null });\n" + 
+			"		return j;\n" + 
+			"	}\n" + 
+			"}", // =================
+		},
+		"----------\n" + 
+		"1. ERROR in X.java (at line 3)\n" + 
+		"	Object[] i, j= new Object[0];\n" + 
+		"	         ^\n" + 
+		"The value of the local variable i is not used\n" + 
+		"----------\n",
+		null /* no class libraries */,
+		true,
+		options /* custom options */);
+}
 public static Class testClass() {
 	return LocalVariableTest.class;
 }