### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core.tests.compiler
Index: src/org/eclipse/jdt/core/tests/compiler/regression/CastTest.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/CastTest.java,v
retrieving revision 1.43
diff -u -r1.43 CastTest.java
--- src/org/eclipse/jdt/core/tests/compiler/regression/CastTest.java	27 Jun 2008 16:04:44 -0000	1.43
+++ src/org/eclipse/jdt/core/tests/compiler/regression/CastTest.java	3 Jul 2008 22:26:50 -0000
@@ -1702,6 +1702,22 @@
 		},
 		"null");
 }
+//https://bugs.eclipse.org/bugs/show_bug.cgi?id=159822
+public void test045() {
+	this.runConformTest(
+		new String[] {
+			"X.java",
+			"public class X {\n" + 
+			"	public static void main(String[] args) {\n" + 
+			"		System.out.println(castLongToInt(3));\n" + 
+			"	}\n" + 
+			"	private static int castLongToInt(long longVal) {\n" + 
+			"		return (int)((long)longVal);\n" + 
+			"	}\n" + 
+			"}\n",
+		},
+		"3");
+}
 public static Class testClass() {
 	return CastTest.class;
 }
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 1.114
diff -u -r1.114 AbstractRegressionTest.java
--- src/org/eclipse/jdt/core/tests/compiler/regression/AbstractRegressionTest.java	30 Jun 2008 08:10:25 -0000	1.114
+++ src/org/eclipse/jdt/core/tests/compiler/regression/AbstractRegressionTest.java	3 Jul 2008 22:26:48 -0000
@@ -2176,6 +2176,14 @@
 					vmArguments);
 			if (!passed) {
 				System.out.println(getClass().getName() + '#' + getName());
+				String execErrorString = this.verifier.getExecutionError();
+				if (execErrorString != null && execErrorString.length() > 0) {
+					System.out.println("[ERR]:"+execErrorString); //$NON-NLS-1$
+				}
+				String execOutputString = this.verifier.getExecutionOutput();
+				if (execOutputString != null && execOutputString.length() > 0) {
+					System.out.println("[OUT]:"+execOutputString); //$NON-NLS-1$
+				}
 				for (int i = 0; i < testFiles.length; i += 2) {
 					System.out.print(testFiles[i]);
 					System.out.println(" ["); //$NON-NLS-1$
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/ast/CastExpression.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/CastExpression.java,v
retrieving revision 1.121
diff -u -r1.121 CastExpression.java
--- compiler/org/eclipse/jdt/internal/compiler/ast/CastExpression.java	27 Jun 2008 16:03:54 -0000	1.121
+++ compiler/org/eclipse/jdt/internal/compiler/ast/CastExpression.java	3 Jul 2008 22:26:53 -0000
@@ -81,9 +81,10 @@
 	// check if could cast directly to enclosing cast type, without intermediate type cast
 	CastExpression alternateCast = new CastExpression(null, enclosingCast.type);
 	alternateCast.resolvedType = enclosingCast.resolvedType;
-	if (!alternateCast.checkCastTypesCompatibility(scope, enclosingCast.resolvedType, nestedCast.expression.resolvedType, nestedCast.expression)) {
-		return;
-	}
+	int originalConversion = nestedCast.expression.implicitConversion;
+	boolean isAlternateLegal = alternateCast.checkCastTypesCompatibility(scope, enclosingCast.resolvedType, nestedCast.expression.resolvedType, nestedCast.expression);
+	nestedCast.expression.implicitConversion = originalConversion; // restore possible side effect of alternateCast check (239305)
+	if (!isAlternateLegal) return;
 	scope.problemReporter().unnecessaryCast(nestedCast);
 }