--- a/src/java.base/share/classes/java/lang/constant/DynamicConstantDesc.java	Wed Jan 09 13:31:34 2019 +0100
+++ b/src/java.base/share/classes/java/lang/constant/DynamicConstantDesc.java	Wed Jan 09 08:07:23 2019 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 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
@@ -96,7 +96,7 @@
                                   ClassDesc constantType,
                                   ConstantDesc... bootstrapArgs) {
         this.bootstrapMethod = requireNonNull(bootstrapMethod);
-        this.constantName = validateMemberName(requireNonNull(constantName));
+        this.constantName = validateMemberName(requireNonNull(constantName), true);
         this.constantType = requireNonNull(constantType);
         this.bootstrapArgs = requireNonNull(bootstrapArgs).clone();