--- old/src/share/vm/gc/shared/genCollectedHeap.cpp	2017-07-25 14:10:59.953616890 +0200
+++ new/src/share/vm/gc/shared/genCollectedHeap.cpp	2017-07-25 14:10:59.853616894 +0200
@@ -1315,3 +1315,11 @@
   }
 #endif
 }
+
+void GenCollectedHeap::register_nmethod(nmethod* nm) {
+  CodeCache::register_scavenge_root_nmethod(nm);
+}
+
+void GenCollectedHeap::verify_nmethod_roots(nmethod* nmethod) {
+  nmethod->verify_scavenge_root_oops();
+}