final int index = offset + SIGNATURE_OFFSET;
            for (int i = 0; i < SIGNATURE_LENGTH; i++) {
                data[index + i] = 0;
            }

            // set signed flag
            final int oldFlags = SMBUtil.readInt4(data, offset + 16);
            final int flags = oldFlags | ServerMessageBlock2.SMB2_FLAGS_SIGNED;
            SMBUtil.writeInt4(flags, data, offset + 16);

            SmbTransport signed = transportPool.getSmbTransport(context, address, DEFAULT_PORT, false, true);

            // Then
            assertEquals(sharedTransport, shared);
            assertEquals(exclusiveTransport, exclusive);
            assertEquals(signedTransport, signed);
            verify(transportPool).getSmbTransport(context, address, DEFAULT_PORT, false);

        bufferIndex += 4;
        this.server.serverTime = SMBUtil.readTime(buffer, bufferIndex);
        bufferIndex += 8;
        int tzOffset = SMBUtil.readInt2(buffer, bufferIndex);
        // tzOffset is signed!
        if (tzOffset > Short.MAX_VALUE) {
            tzOffset = -1 * (65536 - tzOffset);
        }
        this.server.serverTimeZone = tzOffset;
        bufferIndex += 2;

            int bytesRead = response.readBytesWireFormat(buffer, 0);

            assertEquals(16, bytesRead);
            assertEquals(-1, response.getCount()); // -1 as signed int represents max unsigned value
            assertEquals(-2, response.getRemaining());
        }

        private byte[] createValidWriteResponse(int count, int remaining) {
            byte[] buffer = new byte[64];

     * Returns <code>true</code> if the raw type of <code>type</code> can be assigned to <code>clazz</code>,
     * <code>false</code> otherwise.
     *
     * @param type
     *            the type to check. Cannot be null.
     * @param clazz
     *            the class to check against. Cannot be null.
     * @return <code>true</code> if the raw type of <code>type</code> can be assigned to <code>clazz</code>
     */

        @Test
        @DisplayName("Should handle signed/unsigned integer boundaries")
        void shouldHandleSignedUnsignedBoundaries() {
            // Test that GENERIC_READ is the highest bit (0x80000000)
            assertEquals(0x80000000, ACE.GENERIC_READ, "GENERIC_READ should be 0x80000000");
            assertTrue(ACE.GENERIC_READ < 0, "GENERIC_READ should be negative when treated as signed int");

    void testReadParameterWords(int expectedInt, byte[] bytes) {
        // The implementation reads via SMBUtil.readInt4 which returns an int
        // When assigned to a long field, it gets sign-extended
        int readLen = response.readParameterWordsWireFormat(bytes, 0);
        long expectedOffset = expectedInt; // Sign extension happens here for negative values

    @ParameterizedTest
    @CsvSource({ "1, 1", // DISK
            "2, 2", // PIPE
            "3, 3", // PRINT
            "0, 0", // Unknown
            "255, -1" // Byte overflow to signed
    })
    void testDifferentShareTypes(int shareTypeValue, int expectedValue) throws SMBProtocolDecodingException {
        // Given
        byte[] buffer = new byte[256];
        SMBUtil.writeInt2(16, buffer, 0);

            assertEquals("Expected structureSize = 4", exception.getMessage());
        }

        @Test
        @DisplayName("Should handle signed byte value correctly")
        void testReadBytesWireFormatSignedByteValue() {
            // Given
            byte[] buffer = new byte[10];
            // Write 4 in little-endian format
            buffer[0] = 0x04;

    }

    @Test
    @DisplayName("Test decode with negative values")
    void testDecodeWithNegativeValues() throws SMBProtocolDecodingException {
        // Prepare test data with negative values (when interpreted as signed)
        byte[] buffer = new byte[16];
        int bufferIndex = 0;

        // Set up negative values
        int namedPipeState = -1;
        int readDataAvailable = -100;
        int numberOfMessages = -200;