// Create spies
        SmbTransportImpl pooledSpy = spy(pooled);
        SmbTransportImpl nonPooledSpy = spy(nonPooled);

        // Replace with spies (remove and add back for concurrent queues)
        connections.remove(pooled);
        connections.offer(pooledSpy);
        nonPooledConnections.remove(nonPooled);
        nonPooledConnections.offer(nonPooledSpy);

        // Mock disconnect behavior

public class CrawlerThread implements Runnable {
    /**
     * Constructs a new CrawlerThread.
     */
    public CrawlerThread() {
        // Default constructor
    }

    /**
     * Service for managing URL queues during crawling.
     */
    @Resource
    protected UrlQueueService<UrlQueue<?>> urlQueueService;

    /**
     * Service for managing access result data.
     */
    @Resource

        // Execute
        service.generateUrlQueues(previousSessionId, sessionId);

        // Verify
        assertEquals(2, newQueue.size());

        // Verify the generated queues have correct properties
        List<UrlQueueImpl<Long>> queueList = new ArrayList<>(newQueue);
        boolean foundPage1 = false;
        boolean foundPage2 = false;