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
        };

     *            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

    assertFailsWith<ProtocolException> {
      clientReader.processNextFrame()
    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "Frame length 0x8000000000000000 > 0x7FFFFFFFFFFFFFFF",
      )
    }
  }

  @Test fun serverHelloTwoChunks() {
    data.write("818537fa213d7f9f4d".decodeHex()) // Hel
    data.write("5158".decodeHex()) // lo
    serverReader.processNextFrame()

   * 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];

 * @author Colin Evans
 * @since 11.0
 */
@GwtCompatible
public final class UnsignedLong extends Number implements Comparable<UnsignedLong> {

  private static final long UNSIGNED_MASK = 0x7fffffffffffffffL;

  public static final UnsignedLong ZERO = new UnsignedLong(0);
  public static final UnsignedLong ONE = new UnsignedLong(1);
  public static final UnsignedLong MAX_VALUE = new UnsignedLong(-1L);

        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

    }

    @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);