src/hotspot/share/gc/z/zRuntimeWorkers.hpp

rev 57138 : [mq]: 8234796-v3

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2019, 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -24,10 +24,12 @@
 #ifndef SHARE_GC_Z_ZRUNTIMEWORKERS_HPP
 #define SHARE_GC_Z_ZRUNTIMEWORKERS_HPP
 
 #include "gc/shared/workgroup.hpp"
 
+class ThreadClosure;
+
 class ZRuntimeWorkers {
 private:
   WorkGang _workers;
 
   uint nworkers() const;