private final List<Address> addresses = new CopyOnWriteArrayList<>();
private ReachabilityManager(final XmppSession xmppSession) {
super(xmppSession, Reachability.NAMESPACE);
xmppSession.addSessionStatusListener(new SessionStatusListener() {
@Override
public void sessionStatusChanged(SessionStatusEvent e) {
if (e.getStatus() == XmppSession.Status.CLOSED) {
reachabilityListeners.clear();
reachabilities.clear();