final FessConfig fessConfig = ComponentUtil.getFessConfig();

        final StringBuilder resultBuf = new StringBuilder();

        // clean up
        final QueryBuilder queryBuilder = QueryBuilders.rangeQuery(fessConfig.getIndexFieldExpires()).to("now");
        try {
            searchEngineClient.deleteByQuery(fessConfig.getIndexDocumentUpdateIndex(), queryBuilder);

            }
            catch ( IOException ioe0 ) {
                this.state = 6;
                ioe = ioe0;
            }
        case 4: /* failed to connect - reset the transport */
            // thread is cleaned up by connect routine, joining it here causes a deadlock
            this.thread = null;
            this.state = 6;
            break;
        default:
            log.error("Invalid state: " + this.state);

                return signingKey;
            case 3:
            case 4:
            case 5:
                /* This code is only called if extended security is not on. This will
                 * all be cleaned up an normalized in JCIFS 2.x.
                 */
                throw new SmbException("NTLMv2 requires extended security (jcifs.smb1.smb1.client.useExtendedSecurity must be true if jcifs.smb1.smb1.lmCompatibility >= 3)");

labels.web_crawling_button_create_job=Create new job
labels.crawler_configuration=General Configuration
labels.crawler_title_edit=General Configuration
labels.schedule=Schedule
labels.enabled=Enabled
labels.day_for_cleanup=Remove Documents Before
labels.day=Day(s)
labels.crawl_button_update=Update
labels.none=None
labels.crawling_thread_count=Simultaneous Crawler Config
labels.incremental_crawling=Check Last Modified

labels.web_crawling_button_create_job=Create new job
labels.crawler_configuration=General Configuration
labels.crawler_title_edit=General Configuration
labels.schedule=Schedule
labels.enabled=Enabled
labels.day_for_cleanup=Remove Documents Before
labels.day=Day(s)
labels.crawl_button_update=Update
labels.none=None
labels.crawling_thread_count=Simultaneous Crawler Config
labels.incremental_crawling=Check Last Modified

labels.web_crawling_button_create = 작성
labels.web_crawling_button_create_job = 새 작업 만들기
labels.crawler_configuration = 일반 설정
labels.crawler_title_edit = 일반 설정
labels.schedule = 스케줄
labels.enabled = 사용
labels.day_for_cleanup = 이전 문서를 삭제
labels.day = 일
labels.crawl_button_update = 업데이트
labels.none = 없음
labels.crawling_thread_count = 동시 크롤러 설정
labels.incremental_crawling = 마지막 수정일 확인
labels.search_log_enabled = 검색 로그

            return signingKey;
        case 3:
        case 4:
        case 5:
            /*
             * This code is only called if extended security is not on. This will
             * all be cleaned up an normalized in JCIFS 2.x.
             */
            throw new SmbException(
                "NTLMv2 requires extended security (jcifs.smb.client.useExtendedSecurity must be true if jcifs.smb.lmCompatibility >= 3)");

                    /*
                     * Someone removed the share while we were
                     * connected. Bastards! Disconnect this tree
                     * so that it reconnects cleanly should the share
                     * reappear in this client's lifetime.
                     */
                    log.debug("Disconnect tree on NT_STATUS_NETWORK_NAME_DELETED");