diff -r acac2b03a07f -r 001ec9515f84 src/share/vm/memory/referenceProcessor.cpp
--- a/src/share/vm/memory/referenceProcessor.cpp	Thu May 16 23:51:51 2013 +0200
+++ b/src/share/vm/memory/referenceProcessor.cpp	Fri May 17 11:57:05 2013 +0200
@@ -252,7 +252,6 @@
   class AlwaysAliveClosure: public BoolObjectClosure {
   public:
     virtual bool do_object_b(oop obj) { return true; }
-    virtual void do_object(oop obj) { assert(false, "Don't call"); }
   };
 
   class CountHandleClosure: public OopClosure {