diff -r 278600885731 -r 7136c9ac56a7 src/hotspot/share/runtime/mutexLocker.cpp
--- a/src/hotspot/share/runtime/mutexLocker.cpp	Thu May 16 18:45:30 2019 -0400
+++ b/src/hotspot/share/runtime/mutexLocker.cpp	Thu May 16 20:14:54 2019 -0400
@@ -89,7 +89,6 @@
 Mutex*   MarkStackChunkList_lock      = NULL;
 Mutex*   MonitoringSupport_lock       = NULL;
 Mutex*   ParGCRareEvent_lock          = NULL;
-Mutex*   DerivedPointerTableGC_lock   = NULL;
 Monitor* CGCPhaseManager_lock         = NULL;
 Mutex*   Compile_lock                 = NULL;
 Monitor* MethodCompileQueue_lock      = NULL;
@@ -250,7 +249,6 @@
     def(StringDedupTable_lock      , PaddedMutex  , leaf,        true,  Monitor::_safepoint_check_never);
   }
   def(ParGCRareEvent_lock          , PaddedMutex  , leaf     ,   true,  Monitor::_safepoint_check_always);
-  def(DerivedPointerTableGC_lock   , PaddedMutex  , leaf,        true,  Monitor::_safepoint_check_never);
   def(CGCPhaseManager_lock         , PaddedMonitor, leaf,        false, Monitor::_safepoint_check_always);
   def(CodeCache_lock               , PaddedMutex  , special,     true,  Monitor::_safepoint_check_never);
   def(RawMonitor_lock              , PaddedMutex  , special,     true,  Monitor::_safepoint_check_never);