readShort method
Reads a 16-bit signed integer from the current buffer position.
Uses big-endian byte order. Advances the buffer position by 2 bytes. Returns the signed short integer value
Implementation
int readShort() {
assert(_bufferPosition < _bufferData.length);
_bufferPosition += 2;
return Deserializer.getShort(_bufferData, _bufferPosition - 2);
}