code: public synchronized ServletHandler getServletHandler()
      {
          if (_servletHandler==null)
              _servletHandler=(ServletHandler) getHandler(ServletHandler.class);
          if (_servletHandler==null)
          {
              _servletHandler=new ServletHandler();
              addHandler(_servletHandler);
          }
          return _servletHandler;
      }
docs: Get the context ServletHandler.
  Conveniance method. If no ServletHandler exists, a new one is added to
  the context.
  @return ServletHandler