How can i have any way to get the session entity?

HttpSessionContext.getSession(java.lang.String sessionId) is Deprecated,how can i get
the session with sessionID?

I have even hard situation that I need the getSession(String sessionId) method badly. I don't want just simply invalidate the session when user logoff. the problem occurs when user press X to terminate the browser abnormally or user's machine has power failure, or machine rebooting in the middle of running application. If any thing happens, I need to release the resource such as DB connection, record lock and so on so forth. In other word, I need to monitor if user no longer using the session. Is there any way I can do the clean up job? The question will still be is there any way I can get HttpSession object by using sessionId? It will not work If I save it on server side HashMap. Any suggestion? Thanks in advance.
John

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