public String expires;

        @Option(name = "-h", aliases = "--hotThread", metaVar = "hotThread", usage = "Interval for Hot Thread logging")
        public Integer hotThread;

        protected Options() {
            // nothing
        }

        protected List<String> getWebConfigIdList() {

crawler.ignore.content.exception=true
crawler.failure.url.status.codes=404
crawler.system.monitor.interval=60
crawler.hotthread.ignore_idle_threads=true
crawler.hotthread.interval=500ms
crawler.hotthread.snapshots=10
crawler.hotthread.threads=3
crawler.hotthread.timeout=30s
crawler.hotthread.type=cpu
crawler.metadata.content.excludes=resourceName,X-Parsed-By,Content-Encoding.*,Content-Type.*,X-TIKA.*,X-FESS.*

    String CRAWLER_HOTTHREAD_ignore_idle_threads = "crawler.hotthread.ignore_idle_threads";

    /** The key of the configuration. e.g. 500ms */
    String CRAWLER_HOTTHREAD_INTERVAL = "crawler.hotthread.interval";

    /** The key of the configuration. e.g. 10 */
    String CRAWLER_HOTTHREAD_SNAPSHOTS = "crawler.hotthread.snapshots";

    /** The key of the configuration. e.g. 3 */