--- old/src/hotspot/share/gc/parallel/psParallelCompact.cpp	2018-04-19 22:05:05.304781219 +0200
+++ new/src/hotspot/share/gc/parallel/psParallelCompact.cpp	2018-04-19 22:05:05.020772410 +0200
@@ -1038,7 +1038,7 @@
   DerivedPointerTable::update_pointers();
 #endif
 
-  ReferenceProcessorPhaseTimes pt(&_gc_timer, ref_processor()->num_q());
+  ReferenceProcessorPhaseTimes pt(&_gc_timer, ref_processor()->num_queues());
 
   ref_processor()->enqueue_discovered_references(NULL, &pt);
 
@@ -2105,7 +2105,7 @@
     GCTraceTime(Debug, gc, phases) tm("Reference Processing", &_gc_timer);
 
     ReferenceProcessorStats stats;
-    ReferenceProcessorPhaseTimes pt(&_gc_timer, ref_processor()->num_q());
+    ReferenceProcessorPhaseTimes pt(&_gc_timer, ref_processor()->num_queues());
     if (ref_processor()->processing_is_mt()) {
       RefProcTaskExecutor task_executor;
       stats = ref_processor()->process_discovered_references(