--- a/hotspot/src/share/vm/oops/klass.hpp	Mon May 13 18:08:13 2013 +0000
+++ b/hotspot/src/share/vm/oops/klass.hpp	Mon May 13 15:37:08 2013 -0400
@@ -393,6 +393,7 @@
 
   // vtables
   virtual klassVtable* vtable() const        { return NULL; }
+  virtual int vtable_length() const          { return 0; }
 
   // subclass check
   bool is_subclass_of(const Klass* k) const;