long data4 = bb2.getLong();

        // Construct UUID from components - Java UUID expects big-endian representation
        long mostSig = ((long) data1 << 32) | ((long) (data2 & 0xFFFF) << 16) | (data3 & 0xFFFF);
        long leastSig = data4;

        this.guid = new UUID(mostSig, leastSig);
    }

    /**
     * Create a handle GUID from existing UUID
     * @param uuid the UUID to wrap
     */

    static Stream<org.junit.jupiter.params.provider.Arguments> validInputs() {
        return Stream.of(org.junit.jupiter.params.provider.Arguments.of(0x0001, 0x00000000),
                org.junit.jupiter.params.provider.Arguments.of(0xFFFF, 0x12345678),
                org.junit.jupiter.params.provider.Arguments.of(-1, -123456));
    }

    @ParameterizedTest
    @MethodSource("validInputs")

     *
     * @return the major version
     */
    public int getMajorVersion() {
        return (version >> 16) & 0xFFFF;
    }

    /**
     * Gets the minor version number.
     *
     * @return the minor version
     */
    public int getMinorVersion() {
        return version & 0xFFFF;
    }

        // -1 == 0xFFFF
        int negativeSid = -1;
        SmbComFindClose2 neg = new SmbComFindClose2(mockConfig, negativeSid);
        byte[] dst = new byte[2];
        int written = neg.writeParameterWordsWireFormat(dst, 0);
        assertEquals(2, written);
        assertArrayEquals(new byte[] { (byte) 0xFF, (byte) 0xFF }, dst, "Negative sid should wrap to 0xFFFF");
    }

    @Test

     *
     * @param server the server name to enumerate DFS roots from
     */
    public MsrpcDfsRootEnum(final String server) {
        super(server, 200, 0xFFFF, new netdfs.DfsEnumStruct(), new NdrLong(0));
        info.level = level;
        info.e = new netdfs.DfsEnumArray200();
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

    /**

        pipeData = data;
        pipeDataOff = off;
        pipeDataLen = len;
        command = SMB_COM_TRANSACTION;
        subCommand = TRANS_TRANSACT_NAMED_PIPE;
        maxParameterCount = 0;
        maxDataCount = 0xFFFF;
        maxSetupCount = (byte) 0x00;
        setupCount = 2;
        name = "\\PIPE\\";
    }

    @Override
    int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = subCommand;

        // Assert
        assertNotNull(trans);
        assertEquals(0, trans.maxParameterCount);
        assertEquals(0xFFFF, trans.maxDataCount);
        assertEquals(0x00, trans.maxSetupCount);
        assertEquals(2, trans.setupCount);
        assertEquals("\\PIPE\\", trans.name);
    }

    @Test

        assertEquals(30000, SmbConstants.DEFAULT_RESPONSE_TIMEOUT);
        assertEquals(35000, SmbConstants.DEFAULT_SO_TIMEOUT);
        assertEquals(0xFFFF, SmbConstants.DEFAULT_RCV_BUF_SIZE);
        assertEquals(0xFFFF, SmbConstants.DEFAULT_SND_BUF_SIZE);
        assertEquals(250, SmbConstants.DEFAULT_SSN_LIMIT);
        assertEquals(35000, SmbConstants.DEFAULT_CONN_TIMEOUT);

    SocketOutputStream(final OutputStream out) {
        super(out);
    }

    @Override
    public synchronized void write(final byte[] b, int off, final int len) throws IOException {
        if (len > 0xFFFF) {
            throw new IOException("write too large: " + len);
        }
        if (off < 4) {
            throw new IOException("NetBIOS socket output buffer requires 4 bytes available before off");
        }

    }

    @Test
    @DisplayName("Test default buffer size constant")
    void testBufferSizeConstant() {
        assertEquals(0xFFFF, SmbComTransaction.TRANSACTION_BUF_SIZE, "TRANSACTION_BUF_SIZE should be 0xFFFF");
    }

    @Test
    @DisplayName("Test transaction subcommand constants")
    void testSubcommandConstants() {
        // Test Trans2 subcommands