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diff --git a/docs/modules/ROOT/examples/introduction/HashablePoint.java b/docs/modules/ROOT/examples/introduction/HashablePoint.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;
+
+import java.util.Hashtable;
+
+public aspect HashablePoint {
+
+   public int Point.hashCode() {
+      return (int) (getX() + getY() % Integer.MAX_VALUE);
+   }
+
+   public boolean Point.equals(Object o) {
+      if (o == this) { return true; }
+      if (!(o instanceof Point)) { return false; }
+      Point other = (Point)o;
+      return (getX() == other.getX()) && (getY() == other.getY());
+   }
+
+   public static void main(String[] args) {
+      Hashtable h = new Hashtable();
+      Point p1 = new Point();
+
+      p1.setRectangular(10, 10);
+      Point p2 = new Point();
+
+      p2.setRectangular(10, 10);
+
+      System.out.println("p1 = " + p1);
+      System.out.println("p2 = " + p2);
+      System.out.println("p1.hashCode() = " + p1.hashCode());
+      System.out.println("p2.hashCode() = " + p2.hashCode());
+
+      h.put(p1, "P1");
+      System.out.println("Got: " + h.get(p2));
+   }
+}