--- old/src/share/vm/gc/g1/g1CollectedHeap.hpp	2017-07-10 14:17:02.870552685 +0200
+++ new/src/share/vm/gc/g1/g1CollectedHeap.hpp	2017-07-10 14:17:02.773549677 +0200
@@ -967,6 +967,9 @@
   // May not return if something goes wrong.
   G1CollectedHeap(G1CollectorPolicy* policy);
 
+private:
+  jint initialize_concurrent_refinement();
+public:
   // Initialize the G1CollectedHeap to have the initial and
   // maximum sizes and remembered and barrier sets
   // specified by the policy object.