void
rrFromWire(DNSInput in) throws IOException {
	if (in.remaining() > 0)
		options = new ArrayList();
	while (in.remaining() > 0) {
		EDNSOption option = EDNSOption.fromWire(in);
		options.add(option);
	}
}
Creates an OPT Record with no data.  This is normally called by
SimpleResolver, but can also be called by a server.
src/main/java/core/org/xbill/DNS/OPTRecord.java