### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/lookup/BinaryTypeBinding.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/BinaryTypeBinding.java,v
retrieving revision 1.131
diff -u -r1.131 BinaryTypeBinding.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/BinaryTypeBinding.java	19 Nov 2010 14:22:00 -0000	1.131
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/BinaryTypeBinding.java	17 Dec 2010 16:03:27 -0000
@@ -953,7 +953,13 @@
 	if (wrapper.signature[wrapper.start] == ':') {
 		type = this.environment.getResolvedType(TypeConstants.JAVA_LANG_OBJECT, null);
 	} else {
-		type = (ReferenceBinding) this.environment.getTypeFromTypeSignature(wrapper, existingVariables, this, missingTypeNames);
+		TypeBinding typeFromTypeSignature = this.environment.getTypeFromTypeSignature(wrapper, existingVariables, this, missingTypeNames);
+		if (typeFromTypeSignature instanceof ReferenceBinding) {
+			type = (ReferenceBinding) typeFromTypeSignature;
+		} else {
+			// this should only happen if the signature is corrupted (332423)
+			type = this.environment.getResolvedType(TypeConstants.JAVA_LANG_OBJECT, null);
+		}
 		firstBound = type;
 	}