super(session, userInRoomId, new XmppIdPacketListener(roomId));
this.roomId = roomId;
this.sessionRoomId = userInRoomId;
this.presenceListeners = new RoomPresenceListenerCollection();
addPresenceListener(new XmppPresenceListener()
{
public void onPresenceReceived(final XmppPresence presence)
{
String alias = presence.getFromID().getResource();
String type = presence.getType();