diff -r 8486f0c4b7c3 -r 70aa912cebe5 src/cpu/zero/vm/globals_zero.hpp
--- a/src/cpu/zero/vm/globals_zero.hpp	Wed Apr 15 11:14:58 2020 +0800
+++ b/src/cpu/zero/vm/globals_zero.hpp	Wed Apr 15 11:49:55 2020 +0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -33,7 +33,6 @@
 // runtime system.  See globals.hpp for details of what they do.
 
 define_pd_global(bool,  ConvertSleepToYield,  true);
-define_pd_global(bool,  ShareVtableStubs,     true);
 define_pd_global(bool,  CountInterpCalls,     true);
 define_pd_global(bool,  NeedsDeoptSuspend,    false);