--- old/src/hotspot/share/utilities/decoder.hpp	2018-11-05 20:46:59.799637693 -0500
+++ new/src/hotspot/share/utilities/decoder.hpp	2018-11-05 20:46:58.223547790 -0500
@@ -131,7 +131,6 @@
   static NullDecoder          _do_nothing_decoder;
 
 protected:
-  static Mutex*               _shared_decoder_lock;
   static Mutex* shared_decoder_lock();
 
   friend class DecoderLocker;