public void doGet(...) {
 
	String action = (String)req.getParameter("action");	
 
	if (action.equals("GetMyObject")){
	    try {
		res.setContentType("application/x-java-serialized-object");
		ObjectOutputStream out = new ObjectOutputStream(res.getOutputStream());
		MyClass myObj = new MyClass();
		out.writeObject(myObj); 
		out.flush();
	    }
	} else { doSomethingElse(); }
}

URL    currentPage  = getCodeBase();
	String protocol     = currentPage.getProtocol();
	String host         = currentPage.getHost();
	int    port         = currentPage.getPort();
	String urlSuffix    = "/servlet/myServlet?action=GetMyObject";
	URL    dataURL      = new URL(protocol, host, port, urlSuffix);
 
	URLConnection connection = dataURL.openConnection();
	connection.setUseCaches(false);
	connection.setDoInput(true);
	connection.setDoOutput(true);
	ObjectInputStream in = new ObjectInputStream(connection.getInputStream());
	MyClass myObj = (MyClass)(in.readObject());
	in.close();