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Trapping the Session Invalidate / Timeout Events

Anonymous
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Joined: Nov 22, 2008
Posts: 18944
Hi Friends,
I am sure many must have come across this situation. I am developing an servlet based app where I add to a hash table a list of users who are presently logged in . The list can be easily maintained when the user initally logs in and decently logs out . But how shall i come to know that a particular users
session has been timed out. Any suggestions or workarounds to this problem is welcome.
Thanks

 
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subject: Trapping the Session Invalidate / Timeout Events