* @throws IOException thrown if an error occurs
*/
public void tightMarshal2(OpenWireFormat wireFormat, Object o, DataOutput dataOut, BooleanStream bs) throws IOException {
super.tightMarshal2(wireFormat, o, dataOut, bs);
ReplayCommand info = (ReplayCommand)o;
dataOut.writeInt(info.getFirstNakNumber());
dataOut.writeInt(info.getLastNakNumber());
}