### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core.tests.builder
Index: src/org/eclipse/jdt/core/tests/builder/Java50Tests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.builder/src/org/eclipse/jdt/core/tests/builder/Java50Tests.java,v
retrieving revision 1.12
diff -u -r1.12 Java50Tests.java
--- src/org/eclipse/jdt/core/tests/builder/Java50Tests.java	5 Feb 2008 09:07:05 -0000	1.12
+++ src/org/eclipse/jdt/core/tests/builder/Java50Tests.java	13 May 2008 15:09:56 -0000
@@ -108,6 +108,63 @@
 		expectingNoProblems();
 	}
 
+	// https://bugs.eclipse.org/bugs/show_bug.cgi?id=231293
+	public void testMissingRequiredBinaries() throws JavaModelException {
+		
+		IPath p1 = env.addProject("P1", "1.5"); //$NON-NLS-1$
+		IPath p2 = env.addProject("P2"); //$NON-NLS-1$
+
+		env.addExternalJars(p1, Util.getJavaClassLibs());
+		// remove old package fragment root so that names don't collide
+		env.removePackageFragmentRoot(p1, ""); //$NON-NLS-1$
+		IPath root1 = env.addPackageFragmentRoot(p1, "src"); //$NON-NLS-1$
+		env.setOutputFolder(p1, "bin"); //$NON-NLS-1$
+
+		env.addExternalJars(p2, Util.getJavaClassLibs());
+		// remove old package fragment root so that names don't collide
+		env.removePackageFragmentRoot(p2, ""); //$NON-NLS-1$
+		IPath root2 = env.addPackageFragmentRoot(p2, "src"); //$NON-NLS-1$
+		IPath p2bin = env.setOutputFolder(p2, "bin"); //$NON-NLS-1$
+
+		env.addClass(root2, "p2", "Y", //$NON-NLS-1$ //$NON-NLS-2$
+			"package p2;\n"+ //$NON-NLS-1$
+			"public class Y {\n"+ //$NON-NLS-1$
+			"	public void foo(int i) {}\n"+ //$NON-NLS-1$
+			"	public void foo(int i, Z z) {}\n"+ //$NON-NLS-1$
+			"}\n"+ //$NON-NLS-1$
+			"class Z {}" //$NON-NLS-1$
+			);
+
+		fullBuild();
+		expectingNoProblems();
+
+		env.addClassFolder(p1, p2bin, false);
+		env.removeFile(p2bin.append("p2/Z.class")); //$NON-NLS-1$
+
+		env.addClass(root1, "p1", "X", //$NON-NLS-1$ //$NON-NLS-2$
+			"package p1;\n"+ //$NON-NLS-1$
+			"public class X {\n"+ //$NON-NLS-1$
+			"	void test(p2.Y y) { y.foo(1); }\n"+ //$NON-NLS-1$
+			"}\n" //$NON-NLS-1$
+			);
+
+		incrementalBuild(p1);
+		expectingNoProblems();
+
+		IPath xx = env.addClass(root1, "p1", "XX", //$NON-NLS-1$ //$NON-NLS-2$
+			"package p1;\n"+ //$NON-NLS-1$
+			"public class XX {\n"+ //$NON-NLS-1$
+			"	void test(p2.Y y) { y.foo('c'); }\n"+ //$NON-NLS-1$
+			"}\n" //$NON-NLS-1$
+			);
+
+		incrementalBuild(p1);
+		expectingOnlySpecificProblemsFor(p1,new Problem[]{
+				new Problem("p1", "The project was not built since its build path is incomplete. Cannot find the class file for p2.Z. Fix the build path then try building this project", p1, -1, -1, CategorizedProblem.CAT_BUILDPATH, IMarker.SEVERITY_ERROR),//$NON-NLS-1$ //$NON-NLS-2$
+				new Problem("p1", "The type p2.Z cannot be resolved. It is indirectly referenced from required .class files", xx, 51, 61, CategorizedProblem.CAT_BUILDPATH, IMarker.SEVERITY_ERROR)//$NON-NLS-1$ //$NON-NLS-2$
+			});
+	}
+
 	public void testParameterizedMemberType() throws JavaModelException {
 		IPath projectPath = env.addProject("Project", "1.5"); 
 		env.addExternalJars(projectPath, Util.getJavaClassLibs());
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java,v
retrieving revision 1.330
diff -u -r1.330 Scope.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java	12 May 2008 17:23:11 -0000	1.330
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/Scope.java	13 May 2008 15:09:57 -0000
@@ -766,23 +766,12 @@
 
 	// Internal use only
 	public MethodBinding findExactMethod(ReferenceBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite) {
-		boolean checkArgsForRawTypes = false;
-		// in 1.5 mode or higher, we're expecting that an exact match with more than 2 args is not that common
-		// so save some time by not calling findExactMatch & use that time to handle the more common cases with 1 or 2 args.
-		switch (argumentTypes.length) {
-			case 0 : break;
-			case 1 :
-			case 2 :
-				checkArgsForRawTypes = compilerOptions().sourceLevel >= ClassFileConstants.JDK1_5;
-			default :
-				if (compilerOptions().sourceLevel >= ClassFileConstants.JDK1_5)
-					return null; // skip find exact match since its less likely to find a match & raw type check is not worth it
-		}
 		CompilationUnitScope unitScope = compilationUnitScope();
 		unitScope.recordTypeReferences(argumentTypes);
 		MethodBinding exactMethod = receiverType.getExactMethod(selector, argumentTypes, unitScope);
 		if (exactMethod != null && exactMethod.typeVariables == Binding.NO_TYPE_VARIABLES && !exactMethod.isBridge()) {
-			if (checkArgsForRawTypes)
+			// in >= 1.5 mode, ensure the exactMatch did not match raw types
+			if (compilerOptions().sourceLevel >= ClassFileConstants.JDK1_5)
 				for (int i = argumentTypes.length; --i >= 0;)
 					if (argumentTypes[i].isRawType())
 						return null;