This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
by calling methods request.getSession() or request.getSession(true);
in both cases it will return a existing session Object but if there is no existing session it will create new one for you.
if you calls request.getSession(false), it will return session object if there is already created session but it will return null if no existing session is there
in any case ony one session will be maintained not two.....