}
    
    public HandleGuid(byte[] bytes) {
        if (bytes.length != 16) {
            throw new IllegalArgumentException("GUID must be 16 bytes");
        }
        ByteBuffer bb = ByteBuffer.wrap(bytes);
        long mostSig = bb.getLong();
        long leastSig = bb.getLong();
        this.guid = new UUID(mostSig, leastSig);
    }
    
    public byte[] toBytes() {
        ByteBuffer bb = ByteBuffer.allocate(16);

     * The header format is:
     * - Byte 0: Message type (0x00 for SESSION_MESSAGE)
     * - Byte 1: High bit of 17-bit length field
     * - Bytes 2-3: Lower 16 bits of length field
     */
    private static byte[] messageHeader(int length) {
        byte[] h = new byte[4];
        h[0] = (byte) SessionServicePacket.SESSION_MESSAGE;
        h[1] = (byte) ((length >> 16) & 0x01);
        h[2] = (byte) ((length >> 8) & 0xFF);

            byte[] testContext =
                    new byte[] { (byte) 0x11, (byte) 0x22, (byte) 0x33, (byte) 0x44, (byte) 0x55, (byte) 0x66, (byte) 0x77, (byte) 0x88 };
            message.setContext(testContext);

            // When
            byte[] bytes = message.toByteArray();

            // Then
            assertNotNull(bytes);
            // Verify challenge

        // Test with negative byte values
        byte[] data2 = { (byte) 0xFF, (byte) 0xFE, (byte) 0x80, 0x7F };
        assertEquals("FF", Hexdump.toHexString(data2, 0, 2)); // 2 chars = 1 byte
        assertEquals("FFF", Hexdump.toHexString(data2, 0, 3)); // 3 chars = 1.5 bytes (rounds up to 2)
        assertEquals("FFFE", Hexdump.toHexString(data2, 0, 4)); // 4 chars = 2 bytes

        byte[] buffer = new byte[50];
        int bufferIndex = 0;

        // SMB3 capabilities
        int testCapabilities = 0x0000002F; // DFS, LEASING, LARGE_MTU, MULTI_CHANNEL, PERSISTENT_HANDLES, DIRECTORY_LEASING

        // Random but realistic GUID
        byte[] testGuid = { (byte) 0x01, (byte) 0x23, (byte) 0x45, (byte) 0x67, (byte) 0x89, (byte) 0xAB, (byte) 0xCD, (byte) 0xEF,

        @Test
        @DisplayName("fromUNIBytes should decode UTF-16LE bytes to string")
        void testFromUNIBytes() {
            // Given
            byte[] bytes = TEST_STRING.getBytes(StandardCharsets.UTF_16LE);

            // When
            String result = Strings.fromUNIBytes(bytes, 0, bytes.length);

            // Then

		{Name: "TIME", DBName: "ftime", BindNames: []string{"TIME"}, DataType: schema.Time, Creatable: true, Updatable: true, Readable: true, Tag: `gorm:"column:ftime"`},
		{Name: "BYTES", DBName: "fbytes", BindNames: []string{"BYTES"}, DataType: schema.Bytes, Creatable: true, Updatable: true, Readable: true, Tag: `gorm:"column:fbytes"`},
	}

	for _, f := range fields {
		checkSchemaField(t, alias, f, func(f *schema.Field) {})
	}

        byte[] buffer = new byte[256];
        Arrays.fill(buffer, (byte) 0xCC); // Fill with pattern to detect unwritten areas

        int written = request.writeBytesWireFormat(buffer, 0);

        // Verify structure according to SMB2 FLUSH specification
        // Structure Size (2 bytes) - should be 24
        assertEquals(24, SMBUtil.readInt2(buffer, 0));

     * @param mechanismListMIC the mechanism list MIC bytes
     */
    public void setMechanismListMIC(final byte[] mechanismListMIC) {
        this.mechanismListMIC = mechanismListMIC;
    }

    /**
     * Encodes this SPNEGO token to a byte array
     * @return the encoded token bytes
     */
    public abstract byte[] toByteArray();

    /**
     * Parses the provided token bytes to populate this SPNEGO token

        // Session ID (8 bytes) - little-endian
        buffer[index++] = (byte) (testSessionId & 0xFF);
        buffer[index++] = (byte) ((testSessionId >> 8) & 0xFF);
        buffer[index++] = (byte) ((testSessionId >> 16) & 0xFF);
        buffer[index++] = (byte) ((testSessionId >> 24) & 0xFF);
        buffer[index++] = (byte) ((testSessionId >> 32) & 0xFF);