--- a/src/hotspot/share/runtime/thread.cpp	Tue Feb 05 13:21:59 2019 -0500
+++ b/src/hotspot/share/runtime/thread.cpp	Tue Feb 05 15:12:13 2019 -0500
@@ -294,7 +294,6 @@
   // and ::Release()
   _ParkEvent   = ParkEvent::Allocate(this);
   _SleepEvent  = ParkEvent::Allocate(this);
-  _MutexEvent  = ParkEvent::Allocate(this);
   _MuxEvent    = ParkEvent::Allocate(this);
 
 #ifdef CHECK_UNHANDLED_OOPS
@@ -460,7 +459,6 @@
   // We NULL out the fields for good hygiene.
   ParkEvent::Release(_ParkEvent); _ParkEvent   = NULL;
   ParkEvent::Release(_SleepEvent); _SleepEvent  = NULL;
-  ParkEvent::Release(_MutexEvent); _MutexEvent  = NULL;
   ParkEvent::Release(_MuxEvent); _MuxEvent    = NULL;
 
   delete handle_area();