--- old/agent/src/share/classes/sun/jvm/hotspot/jdi/ReferenceTypeImpl.java	Thu Jul  5 14:10:17 2012
+++ new/agent/src/share/classes/sun/jvm/hotspot/jdi/ReferenceTypeImpl.java	Thu Jul  5 14:10:17 2012
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -688,8 +688,7 @@
         if (sde == null) {
            String extension = null;
            if (saKlass instanceof InstanceKlass) {
-              Symbol sdeSym = ((InstanceKlass)saKlass).getSourceDebugExtension();
-              extension = (sdeSym != null)? sdeSym.asString() : null;
+	      extension = ((InstanceKlass)saKlass).getSourceDebugExtension();
            }
            if (extension == null) {
               sde = NO_SDE_INFO_MARK;