docs: public static Tag uri(RequestEvent event) {
          ContainerResponse response = event.getContainerResponse();
          if (response != null) {
              int status = response.getStatus();
              if (isRedirection(status)) {
                  return URI_REDIRECTION;
              }
              if (status == 404) {
                  return URI_NOT_FOUND;
              }
          }
          String matchingPattern = getMatchingPattern(event);
          if (matchingPattern.equals("/")) {
              return URI_ROOT;
          }
          return Tag.of("uri", matchingPattern);
      }