Misplaced IllegalStateExceptions when accessing stateful URL with different
session
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Key: WICKET-2107
URL: https://issues.apache.org/jira/browse/WICKET-2107
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.3.5
Reporter: Michael Sparer
partly copied from the mailing list
(http://www.nabble.com/exception-handling-for-session-dependent-URLs-to22037821.html):
I recently came across a link to one of my projects where a user linked to a
session dependent URL such as /?wicket:interface=:0::IBehaviorListener:2:3
when clicking on that URL, a PageExpiredException gets thrown and a redirect to
the SessionExpiredPage takes place. So far so good - that's the way it should
be.
However this works only for the first request (as long as the user doesn't have
a session). If the user has a session and clicks on that link different
exceptions might get thrown. with the URL mentioned above I've seen either a
IllegalStateException (when it couldn't find a IBehaviorListener with the
corresponding ID) or a ClassCastException (when it tried to cast a
HeaderContributor to an IBehaviorListener in BehaviorRequestTarget).
Apart from the ClassCastException, which definitely shouldn't occur, I don't
think that IllegalStateExceptions should be thrown in (all of) those cases, as
clicking on a session dependent link with a wrong session isn't a far fetched
scenario.
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