--- old/src/share/vm/gc/shenandoah/shenandoahCollectorPolicy.hpp	2017-05-03 19:25:11.337436428 +0200
+++ new/src/share/vm/gc/shenandoah/shenandoahCollectorPolicy.hpp	2017-05-03 19:25:11.277437512 +0200
@@ -181,6 +181,9 @@
   size_t _degenerated_cm;
   size_t _successful_cm;
 
+  size_t _degenerated_uprefs;
+  size_t _successful_uprefs;
+
   ShenandoahHeuristics* _heuristics;
   ShenandoahTracer* _tracer;
   STWGCTimer* _stw_timer;
@@ -237,11 +240,15 @@
   bool update_refs_early();
 
   bool handover_cancelled_marking();
+  bool handover_cancelled_uprefs();
 
   void record_cm_cancelled();
   void record_cm_success();
   void record_cm_degenerated();
   void record_full_gc();
+  void record_uprefs_cancelled();
+  void record_uprefs_success();
+  void record_uprefs_degenerated();
 
   void choose_collection_set(ShenandoahCollectionSet* collection_set, int* connections=NULL);
   void choose_free_set(ShenandoahFreeSet* free_set);