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    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
                                                                        throws ServletException, IOException {
        resp.setContentType("application/jar");
        ServletContext ctx = getServletContext();
        InputStream is = ctx.getResourceAsStream("/dwr.jar");
        int read = 0;
        byte[] bytes = new byte[1024];

        OutputStream os = resp.getOutputStream();
        while ((read = is.read(bytes)) != -1) {
            os.write(bytes, 0, read);
        }
        os.flush();
        os.close();
    }
}