--- a/src/hotspot/share/compiler/oopMap.cpp	Thu Apr 25 05:54:54 2019 -0700
+++ b/src/hotspot/share/compiler/oopMap.cpp	Thu Apr 25 10:56:31 2019 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2019, 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
@@ -338,7 +338,7 @@
       // Protect the operation on the derived pointers.  This
       // protects the addition of derived pointers to the shared
       // derived pointer table in DerivedPointerTable::add().
-      MutexLockerEx x(DerivedPointerTableGC_lock, Mutex::_no_safepoint_check_flag);
+      MutexLocker x(DerivedPointerTableGC_lock, Mutex::_no_safepoint_check_flag);
       do {
         omv = oms.current();
         oop* loc = fr->oopmapreg_to_location(omv.reg(),reg_map);