Shows available url links in the button tooltip.
Fixes leaking ProtocolProviders on enable/disable/delete on macosx.
Fixes possible NPE.
Delays loading and creating swing components when not used. Later initializing of accounts, fixes a problem with not proper providers list shown and leaking ProtocolProvider instances.
Removes one unnecessary iteration over gdata links.
Fixes ConcurrentModificationException.
Fixes leaking Roster instances as we create the Roster once it was cleared while disconnecting.
Fixes leaking DiscoveryInfo$Feature instances.
Fixes ConcurrentModificationException.
Fixes releasing plugin components when the strong value is referring the key and cannot be released.
Removes chat listener to release spell checker instances. Make sure we have one spell checker per plugin, as plugin can have several instances used in different windows.