*/
    public Date readFiletime() throws IOException {
        Date date = null;

        final long last = readUnsignedInt();
        final long first = readUnsignedInt();
        if (first != 0x7fffffffL && last != 0xffffffffL) {
            final BigInteger lastBigInt = BigInteger.valueOf(last);
            final BigInteger firstBigInt = BigInteger.valueOf(first);

    }

    @Test
    public void testReadUnsignedInt() throws IOException {
        // Little-endian 0xFFFFFFFF -> 0xFF 0xFF 0xFF 0xFF
        byte[] data = new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF };
        PacDataInputStream pdis = createInputStream(data);
        assertEquals(0xFFFFFFFFL, pdis.readUnsignedInt());
    }

    @Test
    public void testReadFiletime() throws IOException {

     * @return the number of bytes written (8)
     */
    public static int enc_uint64be(final long l, final byte[] dst, final int di) {
        enc_uint32be((int) (l & 0xFFFFFFFFL), dst, di + 4);
        enc_uint32be((int) (l >> 32L & 0xFFFFFFFFL), dst, di);
        return 8;
    }

    /**
     * Encodes a 64-bit unsigned integer in little-endian byte order.
     *
     * @param l the long value to encode

    }

    @ParameterizedTest
    @ValueSource(longs = { 0L, 1L, 0xFFFFFFFFL, 0x12345678L, 0x80000000L })
    void testWriteReadInt4RoundTrip(long input) {
        byte[] buffer = new byte[8];
        SMBUtil.writeInt4(input, buffer, 0);
        int result = SMBUtil.readInt4(buffer, 0);
        assertEquals((int) (input & 0xFFFFFFFFL), result);
    }

    @ParameterizedTest

     * @return the number of bytes written (8)
     */
    public static int enc_uint64be(final long l, final byte[] dst, final int di) {
        enc_uint32be((int) (l & 0xFFFFFFFFL), dst, di + 4);
        enc_uint32be((int) (l >> 32L & 0xFFFFFFFFL), dst, di);
        return 8;
    }

    /**
     * Encodes a 64-bit unsigned integer in little-endian byte order.
     *
     * @param l the long value to encode

          .that(UnsignedInteger.fromIntBits(value).intValue())
          .isEqualTo(value);
    }
  }

  public void testFromIntBitsLongValue() {
    for (int value : TEST_INTS) {
      long expected = value & 0xffffffffL;
      assertWithMessage(UnsignedInts.toString(value))
          .that(UnsignedInteger.fromIntBits(value).longValue())
          .isEqualTo(expected);
    }
  }

  public void testValueOfLong() {

     */
    @Test
    void testGetMessageByDcerpcError_largerThanAny() {
        int unknownCode = 0x7FFFFFFF; // Max int value

        // The current implementation has a bug in the binary search that causes ArrayIndexOutOfBoundsException
        assertThrows(ArrayIndexOutOfBoundsException.class, () -> {
            DcerpcException.getMessageByDcerpcError(unknownCode);

        byte[] buffer = new byte[256];
        long overflowSize = 0xFFFFFFFFL; // This will become -1 as signed int

        SMBUtil.writeInt2(0, buffer, 0);
        SMBUtil.writeUTime(0, buffer, 2);
        SMBUtil.writeInt4(overflowSize, buffer, 6);

        response.readParameterWordsWireFormat(buffer, 0);

        // 0xFFFFFFFF becomes -1 when interpreted as signed int
        assertEquals(-1L, response.getSize());

                new ValidateNegotiateInfoRequest(0xFFFFFFFF, defaultClientGuid, DEFAULT_SECURITY_MODE, defaultDialects);

        byte[] buffer = new byte[request.size()];
        request.encode(buffer, 0);

        // Verify max capabilities value (comparing as unsigned long)
        assertEquals(0xFFFFFFFFL, SMBUtil.readInt4(buffer, 0) & 0xFFFFFFFFL);
    }

    @Test

                Arguments.of(0x12345678, new byte[] { 0x78, 0x56, 0x34, 0x12 }),
                Arguments.of(0xFFFFFFFF, new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF }),
                Arguments.of(0x7FFFFFFF, new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0x7F }));
    }

    @ParameterizedTest
    @MethodSource("int32Provider")