public void sessionCreated(HttpSessionEvent event) {
HttpSession session = event.getSession();
ServletContext context = session.getServletContext();
ContainerBuilder containerBuilder = getBuilder(context);
ObjectReference sessionContainerRef = new SessionScopeObjectReference(session, SESSION_CONTAINER);
ObjectReference webappContainerRef = new ApplicationScopeObjectReference(context, APPLICATION_CONTAINER);
containerBuilder.buildContainer(sessionContainerRef, webappContainerRef, session, false);
session.setAttribute(KILLER_HELPER, new SessionContainerKillerHelper() {
public void valueBound(HttpSessionBindingEvent bindingEvent) {
HttpSession session = bindingEvent.getSession();