--- old/src/hotspot/share/oops/oopHandle.hpp	2019-02-15 20:10:15.283532005 +0100
+++ new/src/hotspot/share/oops/oopHandle.hpp	2019-02-15 20:10:14.755532009 +0100
@@ -36,6 +36,7 @@
 // future uses for read barriers.
 
 class OopHandle {
+  friend class VMStructs;
 private:
   oop* _obj;