super(config, andx);
    }

    /**
     * Returns the native LAN Manager string reported by the server.
     *
     * @return the nativeLanMan
     */
    public final String getNativeLanMan() {
        return this.nativeLanMan;
    }

    /**
     * Returns the native operating system string reported by the server.
     *
     * @return the nativeOs
     */

        }
        nativeOs = readString(buffer, bufferIndex);
        bufferIndex += stringWireLength(nativeOs, bufferIndex);
        nativeLanMan = readString(buffer, bufferIndex, start + byteCount, 255, useUnicode);
        bufferIndex += stringWireLength(nativeLanMan, bufferIndex);
        if (!extendedSecurity) {
            primaryDomain = readString(buffer, bufferIndex, start + byteCount, 255, useUnicode);

        // Clear jcifs-specific properties to prevent test interference
        System.clearProperty("jcifs.smb.client.nativeOs");
        System.clearProperty("jcifs.smb.client.nativeLanMan");
    }

    @Test
    void testInitWithNullProperties() throws CIFSException {
        // Test successful initialization with null properties
        assertDoesNotThrow(() -> SingletonContext.init(null));

        if (value != null) {
            this.nativeOs = value;
        }

        value = props.getProperty("jcifs.smb.client.nativeLanMan");
        if (value != null) {
            this.nativeLanMan = value;
        }

        // Dialect version properties - these should throw exceptions for invalid values
        String minVersion = props.getProperty("jcifs.smb.client.minVersion");

        String defaultDomain = delegatingConfig.getDefaultDomain();
        String defaultUsername = delegatingConfig.getDefaultUsername();
        String defaultPassword = delegatingConfig.getDefaultPassword();
        String nativeLanMan = delegatingConfig.getNativeLanman();

        // Then
        assertEquals("UTF-8", oemEncoding, "Should delegate OEM encoding");
        assertEquals("TESTHOST", netbiosHostname, "Should delegate NetBIOS hostname");

    String NATIVE_OS = Config.getProperty("jcifs.smb1.smb.client.nativeOs", System.getProperty("os.name"));
    /** Native LAN manager name */
    String NATIVE_LANMAN = Config.getProperty("jcifs.smb1.smb.client.nativeLanMan", "jCIFS");
    /** Virtual circuit number */
    int VC_NUMBER = 1;
    /** Null transport instance */
    SmbTransport NULL_TRANSPORT = new SmbTransport(null, 0, null, 0);

    /** Native operating system name to report */
    protected String nativeOs;
    /** Native LAN Manager string to report */
    protected String nativeLanMan = "jCIFS";
    /** Virtual circuit number for SMB sessions */
    protected int vcNumber = 1;
    /** Whether DFS support is disabled */
    protected boolean dfsDisabled = false;

     *
     * @return OS string to report
     */
    String getNativeOs();

    /**
     *
     * Property {@code jcifs.smb.client.nativeLanMan} (string, default {@code jCIFS})
     *
     * @return Lanman string to report
     */
    String getNativeLanman();

    /**
     *