private static Response processSingleCall(ReplicableCommand command, long timeout,
                                             Address destination, ResponseMode mode,
                                             Marshaller marshaller, CommandAwareRpcDispatcher card, boolean oob,
                                             JGroupsTransport transport) throws Exception {
      if (trace) log.tracef("Replication task sending %s to single recipient %s with response mode %s", command, destination, mode);
      boolean rsvp = isRsvpCommand(command);
      boolean noFlowControl = isTopologyCommand(command);
      ...
}


protected static Message constructMessage(Buffer buf, Address recipient, boolean oob, ResponseMode mode, boolean rsvp,
                                             boolean totalOrder, boolean noFlowControl) {
      Message msg = new Message();
      msg.setBuffer(buf);
      if (oob) msg.setFlag(Message.Flag.OOB);
      //some issues with the new bundler. put back the DONT_BUNDLE flag.
      if (oob || mode != ResponseMode.GET_NONE) msg.setFlag(Message.Flag.DONT_BUNDLE);
      if (rsvp) msg.setFlag(Message.Flag.RSVP);
      if (noFlowControl) msg.setFlag(Message.Flag.NO_FC);

      //In total order protocol, the sequencer is in the protocol stack so we need to bypass the protocol
      if(!totalOrder) {
         msg.setFlag(Message.Flag.NO_TOTAL_ORDER);
      } else {
         msg.clearFlag(Message.Flag.OOB);
      }
      if (recipient != null) msg.setDest(recipient);
      return msg;
   }