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diff --git a/docs/examples/introduction/CloneablePoint.java b/docs/examples/introduction/CloneablePoint.java
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+/*
+
+Copyright (c) Xerox Corporation 1998-2002.  All rights reserved.
+
+Use and copying of this software and preparation of derivative works based
+upon this software are permitted.  Any distribution of this software or
+derivative works must comply with all applicable United States export control
+laws.
+
+This software is made available AS IS, and Xerox Corporation makes no warranty
+about the software, its performance or its conformity to any specification.
+
+*/
+package introduction;
+
+public aspect CloneablePoint {
+
+   declare parents: Point implements Cloneable;
+
+   public Object Point.clone() throws CloneNotSupportedException {
+      // we choose to bring all fields up to date before cloning.
+      makeRectangular();
+      makePolar();
+      return super.clone();
+   }
+
+   public static void main(String[] args){
+      Point p1 = new Point();
+      Point p2 = null;
+
+      p1.setPolar(Math.PI, 1.0);
+      try {
+         p2 = (Point)p1.clone();
+      } catch (CloneNotSupportedException e) {}
+      System.out.println("p1 =" + p1 );
+      System.out.println("p2 =" + p2 );
+
+      p1.rotate(Math.PI / -2);
+      System.out.println("p1 =" + p1 );
+      System.out.println("p2 =" + p2 );
+   }
+}