--- old/src/hotspot/share/gc/z/zHeapIterator.cpp	2018-06-13 04:02:30.601818519 -0400
+++ new/src/hotspot/share/gc/z/zHeapIterator.cpp	2018-06-13 04:02:30.285801934 -0400
@@ -63,7 +63,7 @@
   virtual void do_oop(oop* p) {
     // Load barrier needed here for the same reason we
     // need fixup_partial_loads() in ZHeap::mark_end()
-    const oop obj = RootAccess<>::oop_load(p);
+    const oop obj = NativeAccess<>::oop_load(p);
     _iter->push(obj);
     _iter->drain(_cl);
   }