HttpSession object status, when Server shuts down

Ideally, I am expecting that in the case of server crash/shutdown, all the clients sessions will get expired, and which means all session objects should get destroyed.

This behavior I am able to practically see in Weblogic 8.1 server, but in the case of Tomcat 5.0 and WASCE 1.0, the sessions are persisted some where by the servers. When I restart the servers, I am able to continue the session at the client side.

Can someone please clarify, what does the specification has to say in this regard ?
What should be the ideal behavior ?

Thanks in advance.
[ May 31, 2006: Message edited by: Bear Bibeault ]

In my signature, there is a link to the servlet specification.

"Sivaram ch",

There aren't many rules that you need to worry about here on the Ranch, but one that we take very seriously regards the use of proper names. Please take a look at the JavaRanch Naming Policy and adjust your display name to match it.

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

Thanks!
bear
JavaRanch Sheriff

Ch is my last name, if you can beleive.
Ch stands for Chiranjeevi in India, which basically means forever.

And one more thing, I could not get any clue in specification.
Please send me your answer soon.

Sivaram, we also need the last name to not be an abbreviation. "Sivaram Chiranjeevi" would be ideal, from our perspective. Thanks.