final Queue<UrlQueueImpl<Long>> urlQueueList = dataHelper.getUrlQueueList(sessionId);
        synchronized (urlQueueList) {
            final UrlQueueImpl<Long> urlQueue = new UrlQueueImpl<>();
            urlQueue.setSessionId(sessionId);
            urlQueue.setMethod(Constants.GET_METHOD);
            urlQueue.setUrl(url);
            urlQueue.setDepth(0);
            urlQueue.setCreateTime(SystemUtil.currentTimeMillis());

        accessResult1.setMethod("GET");
        accessResult1.setMimeType("text/plain");
        accessResult1.setParentUrl("http://www.parent.com/");
        accessResult1.setRuleId("htmlRule");
        accessResult1.setSessionId("id1");
        accessResult1.setStatus(200);
        accessResult1.setUrl("http://www.id1.com/");

        dataService.store(accessResult1);

        }

        @Test
        @DisplayName("Should get and set session ID")
        void testSessionIdProperty() {
            assertEquals(0, testMessage.getSessionId());
            testMessage.setSessionId(789L);
            assertEquals(789L, testMessage.getSessionId());
        }

        @Test
        @DisplayName("Should propagate session ID to chained message")
        void testSessionIdPropagation() {

        urlQueue.setSessionId("id1");
        urlQueue.setUrl("http://www.id1.com/");

        urlQueueService.insert(urlQueue);

        final OpenSearchUrlQueue urlQueue2 = new OpenSearchUrlQueue();
        urlQueue2.setCreateTime(System.currentTimeMillis());
        urlQueue2.setDepth(1);
        urlQueue2.setMethod("GET");
        urlQueue2.setSessionId("id2");

    }

    @Test
    @DisplayName("Test setSessionId method")
    void testSetSessionId() {
        // Given
        long sessionId = 987654321L;
        doNothing().when(messageBlock).setSessionId(sessionId);

        // When
        messageBlock.setSessionId(sessionId);

        // Then
        verify(messageBlock).setSessionId(sessionId);
    }

    @Test

        assertEquals(flags, transformHeader.getFlags());
    }

    @Test
    @DisplayName("Should set and get session ID")
    void testSessionId() {
        // When
        transformHeader.setSessionId(testSessionId);

        // Then
        assertEquals(testSessionId, transformHeader.getSessionId());
    }

    @Test
    @DisplayName("Should encode transform header to byte buffer")

     */
    @Override
    public void addIncludeUrlFilter(final String sessionId, final String url) {
        final OpenSearchUrlFilter esUrlFilter = new OpenSearchUrlFilter();
        esUrlFilter.setSessionId(sessionId);
        esUrlFilter.setFilterType(INCLUDE);
        esUrlFilter.setUrl(url);
        insert(esUrlFilter, OpType.INDEX);
        includeFilterCache.invalidate(sessionId);
    }

    /**

    @Override
    public String getSessionId() {
        return sessionId;
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.entity.UrlQueue#setSessionId(java.lang.String)
     */
    @Override
    public void setSessionId(final String sessionId) {
        this.sessionId = sessionId;
    }

    /*
     * (non-Javadoc)
     *

     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#chain(jcifs.internal.smb2.ServerMessageBlock2)
     */
    @Override
    public boolean chain(final ServerMessageBlock2 n) {
        n.setSessionId(Smb2Constants.UNSPECIFIED_SESSIONID);
        return super.chain(n);
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockRequest#size()
     */
    @Override

### Multi-Instance Crawling

```java
// Create multiple crawler instances
Crawler crawler1 = container.getComponent("crawler");
crawler1.setSessionId("session1");
crawler1.addUrl("https://site1.com");

Crawler crawler2 = container.getComponent("crawler");  
crawler2.setSessionId("session2");
crawler2.addUrl("https://site2.com");

// Execute concurrently
crawler1.setBackground(true);
crawler2.setBackground(true);