Triggered when a call to a remote server failed because the caller does
not have an established session with the server and will need to
authorize requests first by visiting the authorization URL provided by
com.atlassian.applinks.api.AuthorisationURIGenerator.
In this callback method the user still gets access to the full response
the server returned.
Note that for any request, only one callback method will ever be
invoked. Either this one, or
#handle(com.atlassian.sal.api.net.Response).
If your implementation of this callback method produces a result object,
you can parameterise the handler accordingly and return your result. If
you are not returning anything, you can parameterise with
java.lang.Voidand return
null.