impl.setOption(SocketOptions.SO_SNDBUF, new Integer(size));
getImpl().setOption(SocketOptions.SO_SNDBUF, new Integer(size));
	public void setSendBufferSize(int size) throws SocketException {		if (impl == null)			throw new SocketException("Not connected");		if (size <= 0)			throw new IllegalArgumentException("SO_SNDBUF value must be > 0");		impl.setOption(SocketOptions.SO_SNDBUF, new Integer(size));	}