src/share/vm/utilities/decoder.hpp

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -30,10 +30,12 @@
 #include "runtime/mutex.hpp"
 #include "runtime/mutexLocker.hpp"
 
 class AbstractDecoder : public CHeapObj<mtInternal> {
 public:
+  virtual ~AbstractDecoder() {}
+
   // status code for decoding native C frame
   enum decoder_status {
          not_available = -10,  // real decoder is not available
          no_error = 0,         // successfully decoded frames
          out_of_memory,        // out of memory

@@ -80,11 +82,11 @@
 public:
   NullDecoder() {
     _decoder_status = not_available;
   }
 
-  ~NullDecoder() {};
+  virtual ~NullDecoder() {};
 
   virtual bool decode(address pc, char* buf, int buflen, int* offset,
                       const char* modulepath, bool demangle) {
     return false;
   }