* on the underlying sessions.
*/
private void doImminentSessionTimeout(Context activeContext) {
ManagerBase manager = (ManagerBase) activeContext.getManager();
Session[] sessions = manager.findSessions();
for (int i = 0; i < sessions.length; i++) {
if (sessions[i]!=null && sessions[i].isValid()) {
sessions[i].setMaxInactiveInterval(EXTRA_DELAY_SECS);
// leave it to be expired by the manager
}