src/hotspot/share/gc/shared/workgroup.hpp

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2002, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2020, 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.

@@ -322,10 +322,12 @@
 #endif
 
   // Set all tasks to unclaimed.
   void clear();
 
+  NONCOPYABLE(SubTasksDone);
+
 public:
   // Initializes "this" to a state in which there are "n" tasks to be
   // processed, none of the which are originally claimed.  The number of
   // threads doing the tasks is initialized 1.
   SubTasksDone(uint n);