code: public static WebApplicationService getService(final List<ArgumentExtractor> argumentExtractors, final RequestContext context) {
          val request = WebUtils.getHttpServletRequestFromExternalWebflowContext(context);
          return HttpRequestUtils.getService(argumentExtractors, request);
      }
docs: Gets the service.
  
  @param argumentExtractors the argument extractors
  @param context            the context
  @return the service