--- old/src/hotspot/share/gc/parallel/parallelScavengeHeap.hpp	2017-11-20 16:28:30.939352108 +0100
+++ new/src/hotspot/share/gc/parallel/parallelScavengeHeap.hpp	2017-11-20 16:28:30.688355061 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2017, 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
@@ -64,6 +64,8 @@
   // The task manager
   static GCTaskManager* _gc_task_manager;
 
+  virtual GCServicabilitySupport* create_servicability_support();
+
   void trace_heap(GCWhen::Type when, const GCTracer* tracer);
 
  protected: