--- old/src/hotspot/share/gc/g1/g1ConcurrentMark.hpp	2018-04-03 14:10:15.784245847 +0200
+++ new/src/hotspot/share/gc/g1/g1ConcurrentMark.hpp	2018-04-03 14:10:15.528238048 +0200
@@ -367,7 +367,7 @@
   void weak_refs_work_parallel_part(BoolObjectClosure* is_alive, bool purged_classes);
   void weak_refs_work(bool clear_all_soft_refs);
 
-  void report_object_count();
+  void report_object_count(bool mark_completed);
 
   void swap_mark_bitmaps();