h ^= fingerprint(buf, bufLen);
      h = remix(h);
      buf[bufLen++] = getChar(h);

      int x0 = buf[bufLen - 1] & 0xff;
      int x1 = buf[bufLen - 2] & 0xff;
      int x2 = buf[bufLen - 3] & 0xff;
      int x3 = buf[bufLen / 2] & 0xff;
      buf[((x0 << 16) + (x1 << 8) + x2) % bufLen] ^= x3;
      buf[((x1 << 16) + (x2 << 8) + x3) % bufLen] ^= i % 256;
    }

        out[i++] = (byte) ((der.length >> 8) & 0xFF);
        out[i++] = (byte) (der.length & 0xFF);
        System.arraycopy(der, 0, out, i, der.length);
        i += der.length;
        out[i++] = (byte) ((nb.length >> 24) & 0xFF);
        out[i++] = (byte) ((nb.length >> 16) & 0xFF);
        out[i++] = (byte) ((nb.length >> 8) & 0xFF);
        out[i++] = (byte) (nb.length & 0xFF);
        System.arraycopy(nb, 0, out, i, nb.length);

            // Arrange
            context = new EncryptionNegotiateContext();
            byte[] buffer = new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, // Padding
                    0x02, 0x00, // 2 ciphers
                    0x01, 0x00, // AES128_CCM
                    0x02, 0x00 // AES128_GCM
            };

            // Act

        int readIndex = (buffer[Smb2Constants.SMB2_HEADER_LENGTH + 4] & 0xFF) | ((buffer[Smb2Constants.SMB2_HEADER_LENGTH + 5] & 0xFF) << 8)
                | ((buffer[Smb2Constants.SMB2_HEADER_LENGTH + 6] & 0xFF) << 16)
                | ((buffer[Smb2Constants.SMB2_HEADER_LENGTH + 7] & 0xFF) << 24);
        assertEquals(fileIndex, readIndex);
    }

    @Test

        byte[] buffer = new byte[100];
        int bufferIndex = 0;

        // Reserved bytes
        buffer[bufferIndex] = (byte) 0xFF;
        buffer[bufferIndex + 1] = (byte) 0xFF;
        buffer[bufferIndex + 2] = (byte) 0xFF;

        // Set fields with negative values (should be treated as unsigned)
        SMBUtil.writeInt4(-1, buffer, bufferIndex + 3); // Should be read as 0xFFFFFFFF

    val tagClass = tagAndClass and 0b1100_0000
    val constructed = (tagAndClass and 0b0010_0000) == 0b0010_0000
    val tag =
      when (val tag0 = tagAndClass and 0b0001_1111) {
        0b0001_1111 -> readVariableLengthLong()
        else -> tag0.toLong()
      }

    // Read the length.
    val length0 = source.readByte().toInt() and 0xff
    val length =
      when {

            byte[] buffer = new byte[32];
            // Set large values to test 64-bit arithmetic
            buffer[0] = (byte) 0xFF;
            buffer[1] = (byte) 0xFF; // Large alloc
            buffer[24] = (byte) 0xFF; // Large sectPerAlloc
            buffer[28] = (byte) 0xFF;
            buffer[29] = (byte) 0xFF; // Large bytesPerSect

            int bytesDecoded = fileFsFullSizeInfo.decode(buffer, 0, buffer.length);

		case "darwin", "ios":
			// Copied from golang.org/x/sys/unix/dev_darwin.go.
			major := uint32((dev >> 24) & 0xff)
			minor := uint32(dev & 0xffffff)
			h.Devmajor, h.Devminor = int64(major), int64(minor)
		case "dragonfly":
			// Copied from golang.org/x/sys/unix/dev_dragonfly.go.
			major := uint32((dev >> 8) & 0xff)
			minor := uint32(dev & 0xffff00ff)
			h.Devmajor, h.Devminor = int64(major), int64(minor)
		case "freebsd":

        int slim = soff + slen;
        while (soff < slim) {
            i = i + 1 & 0xff;
            j = j + s[i] & 0xff;
            final byte t = s[i];
            s[i] = s[j];
            s[j] = t;
            dst[doff] = (byte) (src[soff++] ^ s[s[i] + s[j] & 0xff]);
            doff++;
        }
    }

    val length = source.readMedium()
    if (length > INITIAL_MAX_FRAME_SIZE) {
      throw IOException("FRAME_SIZE_ERROR: $length")
    }
    val type = source.readByte() and 0xff
    val flags = source.readByte() and 0xff
    val streamId = source.readInt() and 0x7fffffff // Ignore reserved bit.
    if (type != TYPE_WINDOW_UPDATE && logger.isLoggable(FINE)) {
      logger.fine(frameLog(true, streamId, length, type, flags))