@Override
    public void writeExternal(ObjectOutput out) throws IOException {
        ExternalizableUtil.getInstance().writeByteArray(out, nodeID);
        ExternalizableUtil.getInstance().writeSerializable(out, handler);
        ExternalizableUtil.getInstance().writeStrings(out, receivers);
    }
List of JIDs with the TO value of the directed presences.
E.g.: paul@js.com or room1@conference.js.com
xmppserver/src/main/java/org/jivesoftware/openfire/handler/DirectedPresence.java