--- old/src/hotspot/share/gc/shared/genCollectedHeap.cpp	2018-04-19 22:05:09.943925112 +0200
+++ new/src/hotspot/share/gc/shared/genCollectedHeap.cpp	2018-04-19 22:05:09.654916148 +0200
@@ -515,7 +515,7 @@
     }
     gen->collect(full, clear_soft_refs, size, is_tlab);
     if (!rp->enqueuing_is_done()) {
-      ReferenceProcessorPhaseTimes pt(NULL, rp->num_q());
+      ReferenceProcessorPhaseTimes pt(NULL, rp->num_queues());
       rp->enqueue_discovered_references(NULL, &pt);
       pt.print_enqueue_phase();
     } else {