Storing data into DB from nearly deleted session

Hi, I want to store the information where is kept in session only when the session is about to destory. Since this information is going to update frequently, so it is a bad idea to use SessionAttributeListener, and catch those update events.
Therefore, I choose HttpSessionActivationListener, and look for willpassivate event. But the problem is it doesn't work. Am I using the wrong listener, so, can anyone give me some insight?

HttpSessionListener is not ok, as listener only gets the messages when it has been destroyed. In other words, all information stored in the session will also be disappeared.

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Storing data into DB from nearly deleted session

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