final String sessionId = "session123";
        indexUpdater.addFinishedSessionId(sessionId);
        assertTrue(indexUpdater.finishedSessionIdList.contains(sessionId));
    }

    // Test addFinishedSessionId with multiple sessions
    @Test
    public void test_addFinishedSessionId_multiple() {
        indexUpdater.addFinishedSessionId("session1");

     *
     * @param sessionId the session ID
     * @return the session, or null if not found or expired
     */
    private ChatSession findSession(final String sessionId) {
        final ChatSession session = sessionCache.get(sessionId);
        if (session == null) {
            if (logger.isDebugEnabled()) {
                logger.debug("Session not found. sessionId={}", sessionId);

        assertEquals(1000, counter.get());
    }

    @Test
    public void test_getCanonicalSessionId() {
        assertEquals("session123", crawlingInfoHelper.getCanonicalSessionId("session123"));
        assertEquals("session123", crawlingInfoHelper.getCanonicalSessionId("session123-456"));
        assertEquals("web", crawlingInfoHelper.getCanonicalSessionId("web-config-789"));

SessionDefaultDep = Annotated[Session, Depends(dep_session)]


class NamedSession:
    def __init__(self, name: str = "default") -> None:
        self.name = name
        self.open = True


def get_named_session(session: SessionRequestDep, session_b: SessionDefaultDep) -> Any:
    assert session is session_b
    named_session = NamedSession(name="named")
    yield named_session, session_b
    named_session.open = False

SessionDefaultDep = Annotated[Session, Depends(dep_session)]


class NamedSession:
    def __init__(self, name: str = "default") -> None:
        self.name = name
        self.open = True


def get_named_session(session: SessionRequestDep, session_b: SessionDefaultDep) -> Any:
    assert session is session_b
    named_session = NamedSession(name="named")
    yield named_session, session_b

        crawler.crawlerContext.setNumOfThread(5);
        crawler.urlFilter.addInclude("https://example.com/.*");
        
        // Execute crawling
        String sessionId = crawler.execute();
        System.out.println("Crawling completed. Session ID: " + sessionId);
    }
}
```

### File System Crawling

```java
import org.codelibs.fess.crawler.client.fs.FileSystemClient;

// Configure for file system crawling

        if (options.sessionId != null) {
            options.sessionId = options.sessionId.replaceAll("-", "_");
        }

        // Check that sessionId was sanitized (hyphens replaced with underscores)
        assertEquals("test_session_123", options.sessionId);
    }

    @Test
    public void test_process_withPropertiesPath() throws Exception {

     *
     * @param sessionId the session ID to retrieve parameters for
     * @return a map containing all key-value parameter pairs for the session
     */
    public Map<String, String> getInfoMap(final String sessionId) {
        final List<CrawlingInfoParam> crawlingInfoParamList = getCrawlingInfoService().getLastCrawlingInfoParamList(sessionId);

    /**
     * Creates a derived session using the given local repository.
     *
     * @param localRepository the new local repository
     * @return the derived session
     * @throws NullPointerException if {@code localRepository} is null
     */
    @Nonnull
    Session withLocalRepository(@Nonnull LocalRepository localRepository);

    /**
     * Creates a derived session using the given remote repositories.
     *

     * Removes URL filters, URL queues, and access result data for the session.
     *
     * @param sessionId the session ID whose data should be deleted
     */
    private void deleteBySessionId(final String sessionId) {
        try {
            urlFilterService.delete(sessionId);
        } catch (final Exception e) {
            logger.warn("Failed to delete UrlFilter: sessionId={}", sessionId, e);