I’'ve got some questions regarding roster subscription:
I’‘ve added to my roster a user who doesn’‘t exists on the server yet. Is it possible to get a notification when the user has registered? Currently I don’'t get presenceChanged notification for such situation.
I set getRoster().setSubscriptionMode(Roster.SUBSCRIPTION_MANUAL) and logged out. A user added me to their roster while I’'m offline. I log in. How can I get a notification that I should authorize users who added me to their roster?
Is there any way to find out if user with particular JabberID exists?