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diff --git a/docs/examples/tracing/lib/TraceMyClasses.java b/docs/examples/tracing/lib/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.lib;
+
+import tracing.TwoDShape;
+import tracing.Circle;
+import tracing.Square;
+import tracing.ExampleMain;
+
+import java.io.FileOutputStream;
+import java.io.PrintStream;
+import java.io.FileNotFoundException;
+
+aspect TraceMyClasses extends AbstractTrace {
+    /**
+     * The application classes
+     */
+    pointcut classes(): within(TwoDShape) || within(Circle) || within(Square);
+    /**
+     * The constructors in those classes - but only the ones with 3
+     * arguments.
+     */
+    pointcut constructors(): execution(new(double, double, double));
+    /**
+     * This specifies all the message executions.
+     */
+    pointcut methods(): execution(* *(..));
+
+    /**
+     * A main function for testing the trace aspect.
+     */
+    public static void main(String[] _args) {
+	final String[] args = _args;
+	new Thread() {
+		public void run() {
+		    TraceMyClasses.aspectOf().initStream(System.err);
+		    ExampleMain.main(args);
+		}
+	    }.start();
+
+	new Thread() {
+		public void run() {
+		    try {
+			TraceMyClasses.aspectOf().initStream(new PrintStream(new FileOutputStream("AJTRACETEST")));
+		    }
+		    catch (FileNotFoundException e) {}
+		    ExampleMain.main(args);
+		}
+	    }.start();
+    }
+}