--- a/src/java.base/share/classes/java/lang/invoke/ConstantBootstraps.java	Sat Aug 24 09:31:15 2019 +0530
+++ b/src/java.base/share/classes/java/lang/invoke/ConstantBootstraps.java	Mon Sep 09 10:13:42 2019 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 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
@@ -40,6 +40,12 @@
  * @since 11
  */
 public final class ConstantBootstraps {
+    /**
+     * Do not call.
+     */
+    @Deprecated(forRemoval=true, since="14")
+    public ConstantBootstraps() {}
+
     // implements the upcall from the JVM, MethodHandleNatives.linkDynamicConstant:
     /*non-public*/
     static Object makeConstant(MethodHandle bootstrapMethod,