code: public static void storeGrailsWebRequest(GrailsWebRequest webRequest) {
          RequestContextHolder.setRequestAttributes(webRequest);
          webRequest.getRequest().setAttribute(GrailsApplicationAttributes.WEB_REQUEST, webRequest);
      }
docs: Helper method to store the given GrailsWebRequest for the current
  request. Ensures consistency between RequestContextHolder and the
  relevant request attribute. This is the preferred means of updating
  the current web request.