--- old/src/hotspot/share/gc/parallel/immutableSpace.hpp	2018-06-20 11:50:15.328139846 +0200
+++ new/src/hotspot/share/gc/parallel/immutableSpace.hpp	2018-06-20 11:50:15.104139854 +0200
@@ -59,7 +59,7 @@
   virtual size_t capacity_in_words(Thread*) const { return capacity_in_words(); }
 
   // Iteration.
-  virtual void oop_iterate(ExtendedOopClosure* cl);
+  virtual void oop_iterate(OopIterateClosure* cl);
   virtual void object_iterate(ObjectClosure* cl);
 
   // Debugging