protected void processRequest(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {

    if (callback != null) {
      callback.call(request, response);
    }
  }
Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.

@param request servlet request
@param response servlet response
@throws ServletException if a servlet-specific error occurs
@throws IOException if an I/O error occurs
extensions/geode-modules-session/src/integrationTest/java/org/apache/geode/modules/session/internal/filter/CallbackServlet.java