diff -r c036b84c6bbf -r 758deedaae84 src/hotspot/share/gc/parallel/pcTasks.cpp
--- a/src/hotspot/share/gc/parallel/pcTasks.cpp	Wed May 09 11:24:12 2018 +0200
+++ b/src/hotspot/share/gc/parallel/pcTasks.cpp	Wed May 09 13:37:05 2018 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -167,17 +167,6 @@
   PSParallelCompact::gc_task_manager()->execute_and_wait(q);
 }
 
-void RefProcTaskExecutor::execute(EnqueueTask& task)
-{
-  ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
-  uint parallel_gc_threads = heap->gc_task_manager()->workers();
-  GCTaskQueue* q = GCTaskQueue::create();
-  for(uint i=0; i<parallel_gc_threads; i++) {
-    q->enqueue(new RefEnqueueTaskProxy(task, i));
-  }
-  PSParallelCompact::gc_task_manager()->execute_and_wait(q);
-}
-
 //
 // StealMarkingTask
 //