WriterThread w = new WriterThread();
        SmbFileOutputStream out = mock(SmbFileOutputStream.class);
        byte[] payload = new byte[] { 1, 2, 3, 4 };

        w.start();

        // Wait until writer thread signals readiness
        synchronized (w) {
            long deadline = System.currentTimeMillis() + 2000;
            while (!w.isReady() && System.currentTimeMillis() < deadline) {
                w.wait(10);

 * The thread also manages the active thread count using {@code crawlerContext.activeThreadCountLock}
 * and provides methods for logging messages using {@link LogHelper}.
 * </p>
 *
 * <p>
 * The crawling process continues until the crawler status is {@link CrawlerStatus#DONE} or the
 * {@link #isContinue(int)} method returns {@code false}.
 * </p>
 *
 */
public class CrawlerThread implements Runnable {
    /**

         */
        public boolean isRunning() {
            return running;
        }

        /**
         * Waits for the crawling thread to terminate.
         * This method blocks until the thread completes its execution.
         * Interrupted exceptions are caught and logged at debug level.
         */
        public void awaitTermination() {
            try {
                join();

                if (account.getLockoutExpiry().isAfter(Instant.now())) {
                    totalAttemptsBlocked.incrementAndGet();
                    throw new SmbException("Account '" + username + "' is locked out until " + account.getLockoutExpiry());
                } else {
                    // Lockout expired, reset
                    account.reset();
                }
            }
        }

     *
     * @param sessionId the session ID to update
     * @param name the name to set for the crawling session (uses system name if blank)
     * @param dayForCleanup number of days until cleanup (sets expiration if >= 0)
     * @throws FessSystemException if unable to store the updated crawling session
     */
    public void updateParams(final String sessionId, final String name, final int dayForCleanup) {

                        final RC4 rc4 = new RC4(ntlm2SessionKey);
                        rc4.update(masterKey, 0, 16, exchangedKey, 0);
                        /* RC4 was not added to Java until 1.5u7 so let's use our own for a little while longer ...
                        try {
                            Cipher rc4 = Cipher.getInstance("RC4");

 * <li>Sends processed documents to the search engine for indexing</li>
 * <li>Manages cleanup of processed crawler session data</li>
 * </ul>
 *
 * <p>The updater runs continuously until crawling is finished and all documents are processed.
 * It includes error handling, retry logic, and performance monitoring capabilities.
 *
 */
public class IndexUpdater extends Thread {
    /** Logger for this class */

    protected List<IntervalRule> ruleList = new ArrayList<>();

    /**
     * Checks the crawler status and waits if the crawler is not running.
     * This method blocks until the crawler is running again.
     */
    public void checkCrawlerStatus() {
        while (!crawlerRunning) {
            ThreadUtil.sleepQuietly(crawlerWaitMillis);
        }
    }

    /**

        /* We cannot use Transport.sendrecv() yet because
         * the Transport thread is not setup until doConnect()
         * returns and we want to supress all communication
         * until we have properly negotiated.
         */
        synchronized (sbuf) {
            if (port == 139) {
                ssn139();
            } else {

        /** Round-robin distribution */
        ROUND_ROBIN,
        /** Least connections */
        LEAST_CONNECTIONS,
        /** Random selection */
        RANDOM,
        /** Failover only (use primary until failure) */
        FAILOVER_ONLY
    }

    /**
     * Represents a group of channels for a single session.
     */
    public static class ChannelGroup {
        private final String sessionId;