size = size % 2 == 0 ? size / 2 : size / 2 + 1;
        for (int i = 0, j = 0; i < size; i++) {
            c[j] = HEX_DIGITS[src[i] >> 4 & 0x0F];
            j++;
            if (j == c.length) {
                break;
            }
            c[j++] = HEX_DIGITS[src[i] & 0x0F];
        }
        return new String(c);
    }

    /**

            switch (this.sbuf[0] & 0xFF) {
            case SessionServicePacket.POSITIVE_SESSION_RESPONSE:
                if (log.isDebugEnabled()) {
                    log.debug("session established ok with " + this.address);
                }
                return;
            case SessionServicePacket.NEGATIVE_SESSION_RESPONSE:
                final int errorCode = this.in.read() & 0xFF;
                switch (errorCode) {

        assertEquals(0, cap.getValue().length, "Optimistic token must be zero-length");
    }

    @ParameterizedTest
    @ValueSource(bytes = { 0x00, 0x7F, (byte) 0xFF })
    @DisplayName("initSecContext throws on invalid token type")
    void testInitSecContextInvalidTokenType(byte firstByte) throws Exception {
        SpnegoContext ctx = newContext();

        int tagNo = ASN1Util.readTagNumber(s, 0x1F);
        assertEquals(31, tagNo);
    }

    @Test
    void testReadTagNumber_MultiByte() throws IOException {
        // Multi-byte tag (e.g., 80)
        InputStream s = new ByteArrayInputStream(new byte[] { (byte) 0x81, 0x00 });
        int tagNo = ASN1Util.readTagNumber(s, 0x1F);
        assertEquals(128, tagNo);
    }

        int readDataAvailable = Integer.MAX_VALUE;
        int numberOfMessages = Integer.MAX_VALUE;
        int messageLength = Integer.MAX_VALUE;
        byte[] testData = { 0x7F, 0x7F, 0x7F, 0x7F };

        // Write values to buffer
        SMBUtil.writeInt4(namedPipeState, buffer, bufferIndex);
        SMBUtil.writeInt4(readDataAvailable, buffer, bufferIndex + 4);

    @Test
    @DisplayName("Decode unknown AvPair type as generic AvPair")
    void testDecodeUnknownType() throws CIFSException {
        byte[] data = new byte[] { 0x01, 0x02, 0x03, 0x04 };
        int unknownType = 0xFF;
        byte[] avPairData = createAvPairData(unknownType, data);
        byte[] eolData = createEolData();

        byte[] fullData = new byte[avPairData.length + eolData.length];

        SMBUtil.writeTime(time, buffer, bufferIndex);
        bufferIndex += 8;
        // serverTimeZone
        buffer[bufferIndex++] = (byte) 0x80;
        buffer[bufferIndex++] = (byte) 0xFF;
        // encryptionKeyLength
        buffer[bufferIndex++] = 8;

        int bytesRead = response.readParameterWordsWireFormat(buffer, 0);
        assertEquals(34, bytesRead);

            e.fileNameLength = readInt4(buffer, bufferIndex + 60);
            //      e.eaSize = readInt4( buffer, bufferIndex + 64 );
            //      e.shortNameLength = buffer[bufferIndex + 68] & 0xFF;

            /* With NT, the shortName is in Unicode regardless of what is negotiated.
             */

            //      e.shortName = readString( buffer, bufferIndex + 70, e.shortNameLength );

        @DisplayName("Should not modify destination buffer")
        void testWriteBytesWireFormatDoesNotModifyBuffer() {
            // Given
            byte[] dst = new byte[100];
            Arrays.fill(dst, (byte) 0xFF);
            byte[] originalDst = dst.clone();

            // When
            response.writeBytesWireFormat(dst, 0);

            // Then
            assertArrayEquals(originalDst, dst);
        }

        StringBuilder sb = new StringBuilder("WITNESS-");
        for (int i = 0; i < Math.min(contextHandle.length, 8); i++) {
            sb.append(String.format("%02X", contextHandle[i] & 0xFF));
        }
        sb.append("-").append(shareName.hashCode());

        return sb.toString();
    }

    /**
     * Checks if the client is connected to the witness service.
     *