diff -r 89b942323bd1 -r c59f1676d27e hotspot/src/share/vm/gc/shared/barrierSet.hpp
--- a/hotspot/src/share/vm/gc/shared/barrierSet.hpp	Thu Oct 08 10:25:45 2015 +0000
+++ b/hotspot/src/share/vm/gc/shared/barrierSet.hpp	Thu Oct 08 12:49:30 2015 -1000
@@ -188,6 +188,9 @@
   static void static_write_ref_array_pre(HeapWord* start, size_t count);
   static void static_write_ref_array_post(HeapWord* start, size_t count);
 
+  virtual void write_ref_nmethod_pre(oop* dst, nmethod* nm) {}
+  virtual void write_ref_nmethod_post(oop* dst, nmethod* nm) {}
+
 protected:
   virtual void write_ref_array_work(MemRegion mr) = 0;
 public: