--- old/src/share/classes/javax/swing/text/StateInvariantError.java	2014-02-12 23:37:56.000000000 -0800
+++ new/src/share/classes/javax/swing/text/StateInvariantError.java	2014-02-12 23:37:55.000000000 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, 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
@@ -33,6 +33,8 @@
  */
 class StateInvariantError extends Error
 {
+    private static final long serialVersionUID = 1823025015388960447L;
+
     /**
      * Creates a new StateInvariantFailure object.
      *