--- old/src/hotspot/share/services/diagnosticFramework.hpp	2018-11-05 20:46:49.963076599 -0500
+++ new/src/hotspot/share/services/diagnosticFramework.hpp	2018-11-05 20:46:48.382986468 -0500
@@ -344,7 +344,6 @@
 // management.cpp)
 class DCmdFactory: public CHeapObj<mtInternal> {
 private:
-  static Mutex*       _dcmdFactory_lock;
   static bool         _send_jmx_notification;
   static bool         _has_pending_jmx_notification;
   static DCmdFactory* _DCmdFactoryList;