}
ref = Destination.get(p.getSysMessageID());
if (ref != null) {
exists = true;
ref.setBrokerAddress(sender);
if (p.getRedelivered()) ref.overrideRedeliver();
} else {
ref = PacketReference.createReference(p, null);
ref.setBrokerAddress(sender);
}
// XXX - note, we send a reply for all message delivered