@Override
  protected void doRequest(HttpServletRequest req, HttpServletResponse res) throws IOException {

    long runtime = System.currentTimeMillis();
    super.doRequest(req, res);
    if (req.getAttribute("close_comment") == null) {
      Date cur_time = Calendar.getInstance(req.getLocale()).getTime();
      PrintWriter pw = res.getWriter();
      pw.print("\r\n<!-- Generated by CoderRoad.COM (");
      pw.print(cur_time);
      pw.print(") ");
      pw.print(cur_time.getTime() - runtime);
      pw.print("ms -->");
    }
  }