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diff --git a/docs/examples/tracing/version3/TraceMyClasses.java b/docs/examples/tracing/version3/TraceMyClasses.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.
+
+|<---            this code is formatted to fit into 80 columns             --->|
+|<---            this code is formatted to fit into 80 columns             --->|
+|<---            this code is formatted to fit into 80 columns             --->|
+
+*/
+
+package tracing.version3;
+
+import tracing.TwoDShape;
+import tracing.Circle;
+import tracing.Square;
+import tracing.ExampleMain;
+
+/**
+ *
+ * This class concretizes the abstract crosscut in Trace, 
+ * applying the trace facility to these application classes.
+ *
+ */
+public aspect TraceMyClasses extends Trace {
+    pointcut myClass(Object obj): 
+	this(obj) && 
+	(within(TwoDShape) || within(Circle) || within(Square));
+
+    /**
+     * A main function for testing the trace aspect.
+     */
+    public static void main(String[] args) {
+	Trace.TRACELEVEL = 2;
+	Trace.initStream(System.err);
+	ExampleMain.main(args);
+    }
+}
+