User user1 = createTestUser("user1", "User One");
        User user2 = createTestUser("user2", "User Two");
        User user3 = createTestUser("user3", "User Three");

        chain.update(user1);
        chain.update(user2);
        chain.update(user3);

        assertEquals(3, chain.updateCalls.size());
        assertEquals(user1, chain.updateCalls.get(0));

        // Test with different names
        LdapUser user2 = new LdapUser(testEnv, "anotheruser");
        assertEquals("anotheruser", user2.getName());

        // Test with empty name
        LdapUser user3 = new LdapUser(testEnv, "");
        assertEquals("", user3.getName());

        // Test with null name
        LdapUser user4 = new LdapUser(testEnv, null);
        assertNull(user4.getName());
    }

    @Test

        assertFalse(exception1.getMessage().equals(exception2.getMessage()));
        assertEquals("User is not found: user1", exception1.getMessage());
        assertEquals("User is not found: user2", exception2.getMessage());
    }

        assertEquals("user1", resultList.get(0).get("name"));
    }

    @Test
    public void test_register_collectionPerformanceOptimization() {
        RenderData data = new RenderData();

        BsUser entity1 = new BsUser();
        entity1.setName("user1");
        BsUser entity2 = new BsUser();
        entity2.setName("user2");

     * When enabled, user search queries are logged for analysis.
     */
    @Size(max = 10)
    public String searchLog;

    /**
     * Enable or disable user information tracking.
     * When enabled, user information is stored and tracked.
     */
    @Size(max = 10)
    public String userInfo;

    /**
     * Enable or disable user favorite functionality.

├── opensearch/                # DBFlute integration for OpenSearch
│   ├── config/                # Config index (crawl configs, schedules)
│   ├── log/                   # Log index (search logs, click logs)
│   └── user/                  # User index (users, groups, roles)
├── helper/                    # Cross-cutting utilities (~40+ helpers)
├── crawler/                   # Crawling engine (processor, transformer, service)

     * to avoid login delays when users have many nested group memberships.
     * @param user The Entra ID user to update.
     */
    public void updateMemberOf(final EntraIdUser user) {
        if (logger.isDebugEnabled()) {
            logger.debug("[updateMemberOf] Starting for user: {}", user.getName());
        }

        final List<String> groupList = new ArrayList<>();

        if (cleanupTask != null && !cleanupTask.isCanceled()) {
            cleanupTask.cancel();
        }
    }

    /**
     * Creates a new chat session.
     *
     * @param userId the user ID (can be null for anonymous users)
     * @return the created session
     */
    public ChatSession createSession(final String userId) {
        final ChatSession session = new ChatSession(userId);

    /**
     * Performs a chat request with RAG.
     *
     * @param sessionId the session ID (can be null for new sessions)
     * @param userMessage the user's message
     * @param userId the user ID (can be null for anonymous users)
     * @return the chat response including session info and sources
     */
    public ChatResult chat(final String sessionId, final String userMessage, final String userId) {

        }

    }

    /**
     * Resolves the SPNEGO credential to a user entity.
     *
     * This method handles the resolution of SPNEGO credentials by checking
     * if the user is an admin user or needs to be authenticated through LDAP.
     *
     * @param resolver The credential resolver to use for user lookup
     */
    @Override