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How do you get all sessions?

 
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Does the Servlet API allow you to retrieve all active sessions? I need to iterate through each one, looking for a particular attribute in the session and then invalidate the session.

I see that HttpSessionContext existed for some time before being removed. Any alternatives?

Thanks.
 
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One alternative is to use a session listener and a context scoped map to store references to all the sessions.

There was a fairly detailed thread on this a while back.
 
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For security reasons you're not allowed to snoop through other sessions.
 
Ben Souther
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