throw new IOException("Unable to decode, expected 2 bytes but received only 1 byte. It seems the stream was not encoded correctly.");
            }
            return (hexToByte(byte1) << 4) | hexToByte(byte2);
        }

        public static int hexToByte(int s) throws IOException {
            if (s >= '0' && s <= '9') {
                return s - '0';
            }
            if (s >= 'a' && s <= 'f') {