code: @SuppressWarnings("unchecked")
  	public void sessionDestroyed(HttpSessionEvent se) {
  		WebContext<HttpSession> context = (WebContext<HttpSession>) container.component(container.contexts().get(Session.class));
  		context.deassociate(se.getSession());
  	}
docs: Deassociates the current {@code HttpSessionEvent} from {@link Session}
  context.
  
  @param se The event the {@code HttpSession} is destroyed.