--- old/src/share/vm/gc/cms/parNewGeneration.cpp	2017-08-03 16:11:02.889643282 -0700
+++ new/src/share/vm/gc/cms/parNewGeneration.cpp	2017-08-03 16:11:02.785643285 -0700
@@ -984,7 +984,7 @@
   // Can  the mt_degree be set later (at run_task() time would be best)?
   rp->set_active_mt_degree(active_workers);
   ReferenceProcessorStats stats;
-  ReferenceProcessorPhaseTimes pt(_gc_timer, rp->num_q(), rp->processing_is_mt());
+  ReferenceProcessorPhaseTimes pt(_gc_timer, rp->num_q());
   if (rp->processing_is_mt()) {
     ParNewRefProcTaskExecutor task_executor(*this, *_old_gen, thread_state_set);
     stats = rp->process_discovered_references(&is_alive, &keep_alive,