while (crawler.crawlerContext.getStatus() != CrawlerStatus.RUNNING && System.currentTimeMillis() - startTime < 5000) {
                try {
                    Thread.sleep(50);
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                    break;
                }
            }
            assertEquals(CrawlerStatus.RUNNING, crawler.crawlerContext.getStatus());

                Thread.currentThread().interrupt();
            }
        }
        crawlerContext.setStatus(CrawlerStatus.DONE);
        if (logger.isInfoEnabled()) {
            logger.info("Crawler execution completed: sessionId={}, status={}", crawlerContext.sessionId, CrawlerStatus.DONE);
        }

        try {
            urlQueueService.saveSession(crawlerContext.sessionId);

     * Test run method with no URLs in queue.
     */
    public void test_run_noUrlsInQueue() throws Exception {
        when(urlQueueService.poll(anyString())).thenReturn(null);
        crawlerContext.setStatus(CrawlerStatus.RUNNING);
        crawlerContext.maxThreadCheckCount = 1; // Will exit after 1 check

        crawlerThread.run();

        verify(urlQueueService, times(1)).poll(anyString());
    }

    /**

import org.codelibs.core.lang.ThreadUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.Crawler;
import org.codelibs.fess.crawler.CrawlerContext;
import org.codelibs.fess.crawler.CrawlerStatus;
import org.codelibs.fess.crawler.interval.FessIntervalController;
import org.codelibs.fess.crawler.service.impl.OpenSearchDataService;
import org.codelibs.fess.crawler.service.impl.OpenSearchUrlFilterService;

### CrawlerContext (`CrawlerContext.java`)

Execution context and configuration.

**Important Fields**:
```java
String sessionId                // Format: yyyyMMddHHmmssSSS
volatile CrawlerStatus status   // DONE, RUNNING
AtomicLong accessCount          // Thread-safe counter
int numOfThread = 10            // Crawler threads
int maxDepth = -1               // Max depth (-1 = unlimited)

    // Crawler Info Map Keys
    // ============================================================

    /** Info map key for crawler status information. */
    public static final String CRAWLER_STATUS = "CrawlerStatus";

    /** Info map key for crawler error information. */
    public static final String CRAWLER_ERRORS = "CrawlerErrors";

    /** Info map key for crawler start time. */

labels.crawling_info_CrawlerStartTime=Starttijd crawler
labels.crawling_info_CrawlerEndTime=Eindtijd crawler
labels.crawling_info_CrawlerExecTime=Uitvoeringstijd crawler
labels.crawling_info_CrawlerStatus=Crawlerstatus
labels.crawling_info_WebFsCrawlExecTime=Crawltijd (Web/Bestand)
labels.crawling_info_WebFsCrawlStartTime=Starttijd crawl (Web/Bestand)
labels.crawling_info_WebFsCrawlEndTime=Eindtijd crawl (Web/Bestand)