--- old/src/share/vm/memory/referenceProcessor.cpp	2013-05-10 15:56:02.968884922 +0200
+++ new/src/share/vm/memory/referenceProcessor.cpp	2013-05-10 15:56:02.904884925 +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 {