diff -r 1f7f707c1aa9 -r 54ffb15c4839 src/java.management/share/classes/javax/management/openmbean/CompositeDataSupport.java
--- a/src/java.management/share/classes/javax/management/openmbean/CompositeDataSupport.java	Wed Oct 23 18:34:25 2019 +0200
+++ b/src/java.management/share/classes/javax/management/openmbean/CompositeDataSupport.java	Wed Oct 23 13:01:40 2019 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -62,6 +62,7 @@
      * respective values.
      *         A {@link SortedMap} is used for faster retrieval of elements.
      */
+    @SuppressWarnings("serial") // Conditionally serializable
     private final SortedMap<String, Object> contents;
 
     /**