--- old/src/hotspot/share/gc/parallel/psParallelCompact.cpp	2018-04-27 11:07:57.715920482 +0200
+++ new/src/hotspot/share/gc/parallel/psParallelCompact.cpp	2018-04-27 11:07:57.426911603 +0200
@@ -1038,12 +1038,6 @@
   DerivedPointerTable::update_pointers();
 #endif
 
-  ReferenceProcessorPhaseTimes pt(&_gc_timer, ref_processor()->num_queues());
-
-  ref_processor()->enqueue_discovered_references(NULL, &pt);
-
-  pt.print_enqueue_phase();
-
   if (ZapUnusedHeapArea) {
     heap->gen_mangle_unused_area();
   }