docs: public void service(ServletRequest req, ServletResponse resp)
      throws ServletException, IOException
      {
          try
          {
              TimedServletPoolElement e = _pool.getNextElement();
              e.getServlet().service(req, resp);
              _pool.returnElement(e);
              _pool.removeExpiredElements();
          }
          catch (Throwable th)
          {
              com.ibm.wsspi.webcontainer.util.FFDCWrapper.processException(th, "com.ibm.ws.webcontainer.servlet.SingleThreadModelServlet.service", "84", this);
              throw new ServletErrorReport(th);
          }
      }