*
     * @param error
     */
    void warn(Throwable error);

    /**
     * @return true if the <b>error</b> error level is enabled
     */
    boolean isErrorEnabled();

    /**
     * Send a message to the user in the <b>error</b> error level.
     *
     * @param content
     */
    void error(CharSequence content);

    /**

        } else if (cae.isWarnEnabled()) {
            logger.warn("[{}] Crawling Access Exception at {}", failureUrlId, urlQueue.getUrl(), cae);
        } else if (cae.isErrorEnabled()) {
            logger.error("[{}] Crawling Access Exception at {}", failureUrlId, urlQueue.getUrl(), cae);
        }

        ComponentUtil.getCrawlerStatsHelper().record(urlQueue, StatsAction.ACCESS_EXCEPTION);

    void warn(Supplier<String> content);

    void warn(Supplier<String> content, Throwable error);

    /**
     * {@return true if the <b>error</b> error level is enabled}
     */
    boolean isErrorEnabled();

    /**
     * Sends a message to the user in the <b>error</b> error level.
     *
     * @param content the message to log
     */
    void error(CharSequence content);

    /**

                    return "5";
                }
                if (logger.isWarnEnabled()) {
                    return "6";
                }
                if (logger.isErrorEnabled()) {
                    return "7";
                }
                return "0";
            }
            if (SpnegoHttpFilter.Constants.LOGIN_CONF.equals(name)) {

            return log.isDebugEnabled();
        case INFO:
            return log.isInfoEnabled();
        case WARN:
            return log.isWarnEnabled();
        case ERROR:
            return log.isErrorEnabled();
        case FATAL:
            return log.isFatalEnabled();
        default:
            throw new ClIllegalArgumentException("logLevel", "ECL0009", asArray(logLevel, logLevel));
        }
    }