--- old/src/share/vm/gc_interface/collectedHeap.hpp	2013-06-26 14:23:35.505918829 -0700
+++ new/src/share/vm/gc_interface/collectedHeap.hpp	2013-06-26 14:23:35.288144792 -0700
@@ -43,6 +43,7 @@
 class AdaptiveSizePolicy;
 class Thread;
 class CollectorPolicy;
+class nmethod;
 
 class GCMessage : public FormatBuffer<1024> {
  public:
@@ -607,6 +608,11 @@
     }
   }
 
+  // Registering and unregistering an nmethod (compiled code) with the heap.
+  // Override with specific mechanism for each specialized heap type
+  virtual void register_nmethod(nmethod* nm) {}
+  virtual void unregister_nmethod(nmethod* nm) {}
+
   // Heap verification
   virtual void verify(bool silent, VerifyOption option) = 0;