Dropwizard register servlet

gistfile1.txt

    ServletHolder holder = new ServletHolder(new HttpServlet() {
      @Override
      protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().print("pong");
        resp.getWriter().close();
      }
    });

    environment.getApplicationContext().getServletHandler().addServletWithMapping(holder, "/servlet/ping");