}

        @Test
        @DisplayName("Unspecified SessionId should be 0xFFFFFFFFFFFFFFFF")
        void testUnspecifiedSessionId() {
            assertEquals(0xFFFFFFFFFFFFFFFFL, Smb2Constants.UNSPECIFIED_SESSIONID, "Unspecified SessionId must be 0xFFFFFFFFFFFFFFFF");
            assertEquals(-1L, Smb2Constants.UNSPECIFIED_SESSIONID, "Unspecified SessionId as signed long should be -1");
        }

        byte[] src = new byte[] {
                // 0x123456789ABCDEF0L
                (byte) 0xF0, (byte) 0xDE, (byte) 0xBC, (byte) 0x9A, (byte) 0x78, (byte) 0x56, (byte) 0x34, (byte) 0x12,
                // 0xFFFFFFFFFFFFFFFFL
                (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
                // 0x0000000000000000L

     */
    public static final int UNSPECIFIED_TREEID = 0xFFFFFFFF;

    /**
     * Unspecified session ID value
     */
    public static final long UNSPECIFIED_SESSIONID = 0xFFFFFFFFFFFFFFFFL;

    /**
     * SMB2 Channel constant for RDMA V1
     * Used in SMB2 READ and WRITE requests to indicate RDMA channel
     */
    public static final int SMB2_CHANNEL_RDMA_V1 = 0x00000001;

    /**

                1L, // One
                -1L, // Negative one
                0x00000000FFFFFFFFL, // 32-bit max as long
                0xFFFFFFFF00000000L, // High 32 bits set
                0x7FFFFFFFFFFFFFFFL, // Long.MAX_VALUE
                0x8000000000000000L, // Long.MIN_VALUE
                0x0101010101010101L, // Repeating pattern
                0xFEFEFEFEFEFEFEFEL // Another pattern
        };

   * unless the user is actually calling a parse method.
   */
  private static final class ParseOverflowDetection {
    private ParseOverflowDetection() {}

    // calculated as 0xffffffffffffffff / radix
    static final long[] maxValueDivs = new long[Character.MAX_RADIX + 1];
    static final int[] maxValueMods = new int[Character.MAX_RADIX + 1];

        return readInt4(buffer, bufferIndex) * 1000L;
    }

    static void writeUTime(long t, final byte[] dst, final int dstIndex) {
        if (t == 0L || t == 0xFFFFFFFFFFFFFFFFL) {
            writeInt4(0xFFFFFFFF, dst, dstIndex);
            return;
        }
        synchronized (TZ) {
            if (TZ.inDaylightTime(new Date())) {
                // in DST

     *            The starting index in the destination array
     */
    public static void writeUTime(final Configuration cfg, long t, final byte[] dst, final int dstIndex) {
        if (t == 0L || t == 0xFFFFFFFFFFFFFFFFL) {
            SMBUtil.writeInt4(0xFFFFFFFF, dst, dstIndex);
            return;
        }

        if (cfg.getLocalTimezone().inDaylightTime(new Date())) {
            // in DST

    }

    @Test
    @DisplayName("Test writeUTime with max time")
    void testWriteUTimeWithMaxTime() {
        byte[] dst = new byte[4];

        SMB1SigningDigest.writeUTime(mockConfig, 0xFFFFFFFFFFFFFFFFL, dst, 0);

        assertEquals((byte) 0xFF, dst[0]);
        assertEquals((byte) 0xFF, dst[1]);
        assertEquals((byte) 0xFF, dst[2]);
        assertEquals((byte) 0xFF, dst[3]);
    }

    @Test

    @DisplayName("Should handle different previous session IDs")
    void testDifferentPreviousSessionIds() throws Exception {
        // Given
        long[] sessionIds = { 0L, 1L, Long.MAX_VALUE, Long.MIN_VALUE, 0xFFFFFFFFFFFFFFFFL };

        for (long sessionId : sessionIds) {
            Smb2SessionSetupRequest req = new Smb2SessionSetupRequest(mockContext, TEST_SECURITY_MODE, TEST_CAPABILITIES, sessionId, null);