Index: compiler/org/eclipse/jdt/internal/compiler/lookup/SourceTypeBinding.java
===================================================================
RCS file: /home/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/SourceTypeBinding.java,v
retrieving revision 1.108
diff -u -r1.108 SourceTypeBinding.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/SourceTypeBinding.java	16 Jun 2005 14:37:22 -0000	1.108
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/SourceTypeBinding.java	28 Jun 2005 10:08:11 -0000
@@ -28,6 +28,7 @@
 import org.eclipse.jdt.internal.compiler.ast.TypeReference;
 import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
 import org.eclipse.jdt.internal.compiler.impl.Constant;
+import org.eclipse.jdt.internal.compiler.util.Util;
 
 public class SourceTypeBinding extends ReferenceBinding {
 	public ReferenceBinding superclass;
@@ -575,9 +576,10 @@
 public char[] computeUniqueKey(boolean isLeaf) {
 	char[] uniqueKey = super.computeUniqueKey(isLeaf);
 	if (uniqueKey.length == 2) return uniqueKey; // problem type's unique key is "L;"
-	int start = CharOperation.lastIndexOf('/', this.fileName) + 1;
+	if (Util.isClassFileName(this.fileName)) return uniqueKey;
 	int end = CharOperation.lastIndexOf('.', this.fileName);
 	if (end != -1) {
+		int start = CharOperation.lastIndexOf('/', this.fileName) + 1;
 		char[] mainTypeName = CharOperation.subarray(this.fileName, start, end);
 		start = CharOperation.lastIndexOf('/', uniqueKey) + 1;
 		if (start == 0)