});
    }

    /**
     * Test with null file names
     */
    @Test
    @DisplayName("Test constructor with null file names")
    public void testConstructorWithNullFileNames() {
        // When & Then - should not throw exception during construction
        assertDoesNotThrow(() -> {
            new SmbComRename(config, null, null);
        });
    }

    /**

 * and default operator. It also allows adding custom filters to modify query behavior.</p>
 *
 */
public class QueryParser {

    /**
     * Default constructor.
     */
    public QueryParser() {
        // Default constructor
    }

    /** The default field to search in when no field is specified in the query */
    protected String defaultField = Constants.DEFAULT_FIELD;

    protected static final String SIMILAR_DOC_HASH_PREFIX = "$";

    /**
     * Default constructor for DocumentHelper.
     * Creates a new document helper instance.
     */
    public DocumentHelper() {
        // Default constructor
    }

    /**
     * Initializes the document helper after construction.
     * Sets up the TikaExtractor with configuration parameters for text processing.
     */

**Strategy**: `CrawlerClient`, `Extractor`, `Transformer` - pluggable implementations
**Builder**: `RequestDataBuilder`, `ExtractorBuilder` - fluent construction
**Template Method**: `AbstractCrawlerClient`, `AbstractExtractor` - common logic with overrides
**DI**: LastaFlute container with `@Resource` and XML config

### Core Principles

**Thread Safety**:

    @DisplayName("Should accept null dialect during construction")
    void testNullDialect() {
        // When/Then
        assertDoesNotThrow(() -> {
            Smb2EncryptionContext context = new Smb2EncryptionContext(1, null, testEncryptionKey, testDecryptionKey);
            assertNull(context.getDialect(), "Dialect should be null");
        }, "Should accept null dialect during construction");
    }

    @Test

    /**
     * Default constructor.
     * Initializes the API manager with the admin server path prefix.
     */
    public SearchEngineApiManager() {
        super();
        setPathPrefix(ADMIN_SERVER);
    }

    /**
     * Registers this API manager with the web API manager factory.
     * Called automatically after construction via @PostConstruct.
     */
    @PostConstruct

        byte[] actual = NtlmUtil.getNTLMv2Response(key, server, clientChallenge, nanos1601, avPairs);

        // Assert
        assertArrayEquals(expected, actual, "Computed response must match manual construction");
        // Also verify client challenge sits at mac(16) + blob offset 16
        assertArrayEquals(clientChallenge, Arrays.copyOfRange(actual, 16 + 16, 16 + 16 + 8));
    }

    @Test

        // Tree connection is acquired in the constructor and should return itself
        when(treeConnection.acquire()).thenReturn(treeConnection);
        when(treeConnection.getSession()).thenReturn(session);
        when(session.getTransport()).thenReturn(transport);
        handle = new SmbTreeHandleImpl(resourceLoc, treeConnection);
    }

    @Test
    @DisplayName("Constructor acquires tree connection; getConfig/isConnected delegate")

    protected String[] fileProtocols = StringUtil.EMPTY_STRINGS;

    /**
     * Default constructor for ProtocolHelper.
     * Initializes the helper with empty protocol arrays that will be populated during init().
     */
    public ProtocolHelper() {
        // Default constructor
    }

    /**
     * Initializes the protocol helper by loading configured protocols from FessConfig

    /** Timer for managing process destruction. */
    private Timer destoryTimer;

    /**
     * Default constructor for CommandGenerator.
     */
    public CommandGenerator() {
        super();
    }

    /**
     * Initializes the command generator after construction.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {