--- old/src/share/vm/gc/g1/g1RemSetSummary.hpp	2017-07-10 14:17:05.066620792 +0200
+++ new/src/share/vm/gc/g1/g1RemSetSummary.hpp	2017-07-10 14:17:04.970617814 +0200
@@ -36,11 +36,7 @@
 private:
   friend class GetRSThreadVTimeClosure;
 
-  G1RemSet* _remset;
-
-  G1RemSet* remset() const {
-    return _remset;
-  }
+  G1RemSet* remset() const;
 
   size_t _num_conc_refined_cards;
   size_t _num_processed_buf_mutator;
@@ -48,8 +44,8 @@
 
   size_t _num_coarsenings;
 
-  double* _rs_threads_vtimes;
   size_t _num_vtimes;
+  double* _rs_threads_vtimes;
 
   double _sampling_thread_vtime;
 
@@ -70,10 +66,6 @@
   // subtract all counters from the other summary, and set them in the current
   void subtract_from(G1RemSetSummary* other);
 
-  // initialize and get the first sampling
-  void initialize(G1RemSet* remset);
-  bool const initialized() { return _rs_threads_vtimes != NULL; }
-
   void print_on(outputStream* out);
 
   double rs_thread_vtime(uint thread) const;