--- old/src/share/vm/gc/parallel/parallelScavengeHeap.hpp	2017-07-25 13:51:27.605657728 +0200
+++ new/src/share/vm/gc/parallel/parallelScavengeHeap.hpp	2017-07-25 13:51:27.457657733 +0200
@@ -135,6 +135,8 @@
   // generational collectors that means during a collection of
   // the young gen.
   virtual bool is_scavengable(const void* addr);
+  virtual void register_nmethod(nmethod* nm);
+  virtual void verify_nmethod_roots(nmethod* nmethod);
 
   size_t max_capacity() const;