diff -r ae2eb76c486d -r 5e8f9713e343 src/hotspot/share/gc/z/zBarrierSetRuntime.hpp
--- a/src/hotspot/share/gc/z/zBarrierSetRuntime.hpp	Thu Nov 28 13:02:39 2019 +0100
+++ b/src/hotspot/share/gc/z/zBarrierSetRuntime.hpp	Fri Nov 29 11:26:25 2019 +0100
@@ -36,7 +36,7 @@
   static oopDesc* load_barrier_on_weak_oop_field_preloaded(oopDesc* o, oop* p);
   static oopDesc* load_barrier_on_phantom_oop_field_preloaded(oopDesc* o, oop* p);
   static void load_barrier_on_oop_array(oop* p, size_t length);
-  static void clone(oop src, oop dst, size_t size);
+  static void clone(oopDesc* src, oopDesc* dst, size_t size);
 
 public:
   static address load_barrier_on_oop_field_preloaded_addr(DecoratorSet decorators);