--- old/src/share/vm/prims/jvmtiRedefineClasses.hpp	2014-12-17 11:50:53.946902000 -0500
+++ new/src/share/vm/prims/jvmtiRedefineClasses.hpp	2014-12-17 11:50:53.026207000 -0500
@@ -511,6 +511,12 @@
     void do_klass(Klass* k);
   };
 
+  // Clean MethodData out
+  class MethodDataCleaner : public KlassClosure {
+   public:
+    MethodDataCleaner() {}
+    void do_klass(Klass* k);
+  };
  public:
   VM_RedefineClasses(jint class_count,
                      const jvmtiClassDefinition *class_defs,