diff -r 8486f0c4b7c3 -r 70aa912cebe5 src/share/vm/code/vtableStubs.cpp
--- a/src/share/vm/code/vtableStubs.cpp	Wed Apr 15 11:14:58 2020 +0800
+++ b/src/share/vm/code/vtableStubs.cpp	Wed Apr 15 11:49:55 2020 +0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 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
@@ -110,7 +110,7 @@
 address VtableStubs::find_stub(bool is_vtable_stub, int vtable_index) {
   assert(vtable_index >= 0, "must be positive");
 
-  VtableStub* s = ShareVtableStubs ? lookup(is_vtable_stub, vtable_index) : NULL;
+  VtableStub* s = lookup(is_vtable_stub, vtable_index);
   if (s == NULL) {
     if (is_vtable_stub) {
       s = create_vtable_stub(vtable_index);