--- old/src/share/vm/oops/oop.hpp	2017-07-20 19:41:13.593961202 -0400
+++ new/src/share/vm/oops/oop.hpp	2017-07-20 19:41:13.279287044 -0400
@@ -204,6 +204,8 @@
   inline Metadata* metadata_field(int offset) const;
   inline void metadata_field_put(int offset, Metadata* value);
 
+  inline void metadata_field_put_volatile(int offset, Metadata* value);
+
   inline jbyte byte_field(int offset) const;
   inline void byte_field_put(int offset, jbyte contents);