--- a/src/java.management/share/classes/sun/management/ThreadInfoCompositeData.java	Wed Oct 23 18:34:25 2019 +0200
+++ b/src/java.management/share/classes/sun/management/ThreadInfoCompositeData.java	Wed Oct 23 13:01:40 2019 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2004, 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
@@ -45,7 +45,9 @@
  * construction of a CompositeData use in the local case.
  */
 public class ThreadInfoCompositeData extends LazyCompositeData {
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     private final ThreadInfo threadInfo;
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     private final CompositeData cdata;
 
     private ThreadInfoCompositeData(ThreadInfo ti) {