src/hotspot/share/gc/shared/collectedHeap.hpp

   virtual bool is_scavengable(oop obj) = 0;
   // 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) {}
+  virtual void flush_nmethod(nmethod* nm) {}
   virtual void verify_nmethod(nmethod* nmethod) {}
 
   void trace_heap_before_gc(const GCTracer* gc_tracer);
   void trace_heap_after_gc(const GCTracer* gc_tracer);