diff -r 1f7f707c1aa9 -r 54ffb15c4839 src/java.management/share/classes/javax/management/AttributeChangeNotification.java
--- a/src/java.management/share/classes/javax/management/AttributeChangeNotification.java	Wed Oct 23 18:34:25 2019 +0200
+++ b/src/java.management/share/classes/javax/management/AttributeChangeNotification.java	Wed Oct 23 13:01:40 2019 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 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
@@ -74,11 +74,13 @@
     /**
      * @serial The MBean attribute old value.
      */
+    @SuppressWarnings("serial") // Conditionally serializable
     private Object oldValue = null;
 
     /**
      * @serial The MBean attribute new value.
      */
+    @SuppressWarnings("serial") // Conditionally serializable
     private Object newValue = null;