stream(langs).of(stream -> stream.forEach(builder::addLang));

            stream(parameter.getTags()).of(stream -> stream.forEach(builder::addTag));
            final String key = ComponentUtil.getVirtualHostHelper().getVirtualHostKey();
            if (StringUtil.isNotBlank(key)) {
                builder.addTag(key);
            }

            builder.addKind(SuggestItem.Kind.USER.toString());

    @Test
    public void test_addCondition() {
        // Test adding conditions
        generator = new TestThumbnailGenerator();

        // Test adding single condition
        generator.addCondition("field1", "value1");

        // Test adding multiple conditions for same field
        generator.addCondition("field1", "value2");

        // Test adding conditions for different fields

    }

    @Test
    public void test_addCondition() {
        // Initialize without container
        emptyGenerator = new EmptyGenerator();

        // Test adding conditions - this should work without container
        emptyGenerator.addCondition("field1", "pattern1");
        emptyGenerator.addCondition("field1", "pattern2");
        emptyGenerator.addCondition("field2", "pattern.*");

        // Test with empty strings
        result = jobExecutor.execute("", "");
        assertEquals("Executed:  ", result);
    }

    @Test
    public void test_addShutdownListener() {
        // Test adding shutdown listener
        AtomicBoolean shutdownCalled = new AtomicBoolean(false);
        ShutdownListener listener = new ShutdownListener() {
            @Override
            public void onShutdown() {

     *
     * @param webApiManager The web API manager to add
     */
    public void add(final WebApiManager webApiManager) {
        if (logger.isDebugEnabled()) {
            logger.debug("Adding WebApiManager. class={}", webApiManager.getClass().getSimpleName());
        }
        final List<WebApiManager> list = new ArrayList<>();
        Collections.addAll(list, webApiManagers);
        list.add(webApiManager);

        assertEquals(1, chain3.updateCallCount);
    }

    // Test addChain null handling
    @Test
    public void test_addChain_withNull() {
        // ArrayUtils.addAll handles null gracefully by adding it to the array
        authenticationManager.addChain(null);

        // Verify null chain doesn't cause issues during operations
        User user = createTestUser("testuser");
        try {

        final int threadCount = 10;
        final Thread[] threads = new Thread[threadCount];
        final Exception[] exceptions = new Exception[threadCount];

        // Threads alternate between adding and checking isEmpty
        for (int i = 0; i < threadCount; i++) {
            final int threadIndex = i;
            threads[i] = new Thread(() -> {
                try {

                processCalled = true;
                processOrigin = origin;
                processRequest = request;
                processResponse = response;

                // Simulate adding headers for testing
                if (response instanceof HttpServletResponse) {
                    HttpServletResponse httpResponse = (HttpServletResponse) response;

        }

        final ChatSession session = chatSessionManager.getOrCreateSession(sessionId, userId);
        // Extract history snapshot before adding current user message to avoid duplication
        final List<LlmMessage> history = extractHistory(session);
        // Add user message immediately for session integrity under concurrent access

    @Test
    public void test_putToInfoMap() {
        // Test initial null map
        crawlingInfoHelper.putToInfoMap("key1", "value1");
        assertNotNull(crawlingInfoHelper.infoMap);

        // Test adding multiple entries
        crawlingInfoHelper.putToInfoMap("key2", "value2");
        crawlingInfoHelper.putToInfoMap("key3", "value3");

        assertEquals("value1", crawlingInfoHelper.infoMap.get("key1"));