docs: public void sendData(HttpServletRequest req, HttpServletResponse res) 
          throws ServletException, IOException
      {
  //        res.setContentType("application/x-java-jnlp-file");
  //x        PrintWriter out = new PrintWriter(res.getOutputStream());
  //        PrintWriter out = res.getWriter();
  
  //        this.printXML(req, out);
  //        out.flush();
          
          ClassService classService = ClassServiceUtility.getClassService();
          if (classService == null)
              return;    // Never
          ClassFinder classFinder = classService.getClassFinder(null);
          if (classFinder == null)
              return;
          HttpServiceTracker tracker = (HttpServiceTracker)classFinder.getClassBundleService(null, WEB_START_ACTIVATOR_CLASS, null, null, -1);
          if (tracker == null)
              return;
          Servlet servlet = tracker.getServlet();
          if (servlet == null)
              return;
          servlet.service((HttpServletRequest)req, (HttpServletResponse)res);
      }