code: public UrlPath urlPath() {
          if (null == urlPath) {
              urlPath = UrlPath.of(null == processedUrl ? req().url() : processedUrl);
          }
          return urlPath;
      }
docs: Return a {@link UrlPath} of this context.
  
  Note this method is used only by {@link Router} for dynamic path
  matching.
  
  @return a {@link UrlPath} of this context