title: How can I get all open sessions?
body: <p>Im using spring security and I would like to loop over all the open session and change the timeout using <code>HttpSession.setMaxInactiveInterval(timeout);</code> </p>
  
  <p>I thought about using <code>SessionRegistry.getAllSessions()</code> but it only returns <code>SessionInformation</code> instances rather than <code>HttpSession</code> objects.</p>