// Arrange
        jcifs.SID mockSid1 = mock(jcifs.SID.class);
        jcifs.SID mockSid2 = mock(jcifs.SID.class);
        when(mockSid1.unwrap(sid_t.class)).thenReturn(mockSidT);
        // Don't stub mockSid2 since it won't be reached due to NPE on null element
        testSids = new jcifs.SID[] { mockSid1, null, mockSid2 };

        // Act & Assert - This should throw an exception when LsarSidArrayX tries to process null

# ----------------------------------------------------------
# Application Exception
# ---------------------
# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/
errors.login.failure = Échec de la connexion.
errors.app.illegal.transition = Transition illégale. Veuillez réessayer.

# ----------------------------------------------------------
# Application Exception
# ---------------------
# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/
errors.login.failure = 登录失败。
errors.app.illegal.transition = 非法转换，请重试。
errors.app.db.already.deleted = 可能已被其他进程删除。请重试。
errors.app.db.already.updated = 可能已被其他进程更新。请重试。

    
    // Continue with normal connection logic
    super.doConnect();
}

@Override
public void close() throws IOException {
    try {
        super.close();
    } finally {
        // Don't release directory lease on close - it may be shared
        // Lease will be cleaned up by the lease manager
    }
}
```

### 5.2 Session Integration
```java
// In SmbSession.java

     * @param    len        count of bytes in input block to consider
     */
    @Override
    public void engineUpdate(final byte[] input, final int offset, final int len) {
        // make sure we don't exceed input's allocated size/length
        if (offset < 0 || len < 0 || (long) offset + len > input.length) {
            throw new ArrayIndexOutOfBoundsException();
        }

            // Add credentials if present
            String userInfo = url.getUserInfo();
            if (userInfo != null && !userInfo.isEmpty()) {
                // Don't log credentials
                normalized.append(userInfo).append("@");
            }

            normalized.append(host.toLowerCase());

            // Add port if non-standard

# ----------------------------------------------------------
# Application Exception
# ---------------------
# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/
errors.login.failure = लॉगिन विफल रहा।
errors.app.illegal.transition = अवैध परिवर्तन। कृपया पुनः प्रयास करें।

    }

    @BeforeEach
    public void setUp() throws UnknownHostException {
        ntlmSsp = new NtlmSsp();

        // Use lenient stubbing to avoid UnnecessaryStubbing errors for tests that don't need all mocks
        lenient().when(mockCifsContext.getConfig()).thenReturn(mockConfig);
        lenient().when(mockConfig.getDefaultDomain()).thenReturn("DOMAIN");

        // Create a minimal filter config that won't try to connect to a real server
        Map<String, String> initParams = new HashMap<>();
        initParams.put("jcifs.smb.client.domain", "TEST_DOMAIN");
        // Don't set domainController to avoid real connection attempts
        initParams.put("jcifs.http.loadBalance", "false");
        initParams.put("jcifs.http.enableBasic", "false");

            // Read the response
            int bytesRead = echoResponse.readBytesWireFormat(buffer, bufferIndex);
            assertEquals(0, bytesRead);

            // Write response (echo responses don't write data)
            int bytesWritten = echoResponse.writeBytesWireFormat(buffer, 0);
            assertEquals(0, bytesWritten);

            // Mark as received
            echoResponse.received();