diff -r 218a1a642c6f -r baa5969ecf34 test/jdk/java/io/Serializable/evolution/AddedSuperClass/WriteAddedSuperClass.java
--- a/test/jdk/java/io/Serializable/evolution/AddedSuperClass/WriteAddedSuperClass.java	Fri Oct 11 09:43:41 2019 -0700
+++ b/test/jdk/java/io/Serializable/evolution/AddedSuperClass/WriteAddedSuperClass.java	Fri Oct 11 13:11:56 2019 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 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
@@ -52,6 +52,8 @@
 import java.io.*;
 
 class AddedSuperClass implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     // Needed at least one field to recreate failure.
     int field;
 }