I've S'ed TFW and the FA but I can't find a discussion of this.

What's the best way to test for session state in a JSP?  I've been reading a
session attribute and if it returns null I send the user to a "You timed
out" page.  This works OK as far as the viewer is concerned but if a session
is, in fact, invalid, an IllegalStateException is thrown and printed out in
the console.  Is there a better way?

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