--- old/src/share/vm/runtime/perfData.hpp	2017-06-26 18:37:45.000000000 -0700
+++ new/src/share/vm/runtime/perfData.hpp	2017-06-26 18:37:45.000000000 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2015, 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
@@ -288,7 +288,7 @@
     void *_valuep;
 
     PerfData(CounterNS ns, const char* name, Units u, Variability v);
-    ~PerfData();
+    virtual ~PerfData();
 
     // create the entry for the PerfData item in the PerfData memory region.
     // this region is maintained separately from the PerfData objects to