--- old/src/hotspot/share/gc/shared/barrierSet.hpp	2017-11-02 08:30:06.000000000 +0100
+++ new/src/hotspot/share/gc/shared/barrierSet.hpp	2017-11-02 08:30:06.000000000 +0100
@@ -120,9 +120,6 @@
   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;