--- a/src/java.base/share/classes/java/lang/IncompatibleClassChangeError.java	Thu Oct 17 20:27:44 2019 +0100
+++ b/src/java.base/share/classes/java/lang/IncompatibleClassChangeError.java	Thu Oct 17 20:53:35 2019 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1994, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1994, 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
@@ -35,10 +35,11 @@
  */
 public
 class IncompatibleClassChangeError extends LinkageError {
+    @java.io.Serial
     private static final long serialVersionUID = -4914975503642802119L;
 
     /**
-     * Constructs an <code>IncompatibleClassChangeError</code> with no
+     * Constructs an {@code IncompatibleClassChangeError} with no
      * detail message.
      */
     public IncompatibleClassChangeError () {
@@ -46,7 +47,7 @@
     }
 
     /**
-     * Constructs an <code>IncompatibleClassChangeError</code> with the
+     * Constructs an {@code IncompatibleClassChangeError} with the
      * specified detail message.
      *
      * @param   s   the detail message.