--- old/src/hotspot/share/oops/oop.cpp	2018-05-21 11:52:10.580036222 +0200
+++ new/src/hotspot/share/oops/oop.cpp	2018-05-21 11:52:10.284030948 +0200
@@ -101,7 +101,7 @@
   ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY
   HandleMark hm(THREAD);
   Handle object(THREAD, this);
-  return ObjectSynchronizer::identity_hash_value_for(object);
+  return ObjectSynchronizer::FastHashCode(THREAD, object());
 }
 
 // When String table needs to rehash