--- a/src/hotspot/share/gc/z/zServiceability.hpp	Thu Aug 09 15:42:48 2018 +0800
+++ b/src/hotspot/share/gc/z/zServiceability.hpp	Thu Aug 09 11:24:30 2018 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 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
@@ -24,6 +24,7 @@
 #ifndef SHARE_GC_Z_ZSERVICEABILITY_HPP
 #define SHARE_GC_Z_ZSERVICEABILITY_HPP
 
+#include "gc/shared/collectorCounters.hpp"
 #include "memory/allocation.hpp"
 #include "services/memoryManager.hpp"
 #include "services/memoryPool.hpp"
@@ -76,6 +77,9 @@
 };
 
 class ZServiceabilityCountersTracer {
+private:
+  TraceCollectorStats _stats;
+
 public:
   ZServiceabilityCountersTracer();
   ~ZServiceabilityCountersTracer();