code: public List<FacesConfigSystemEventListenerType<FacesConfigApplicationType<T>>> getAllSystemEventListener()
     {
        List<FacesConfigSystemEventListenerType<FacesConfigApplicationType<T>>> list = new ArrayList<FacesConfigSystemEventListenerType<FacesConfigApplicationType<T>>>();
        List<Node> nodeList = childNode.get("system-event-listener");
        for(Node node: nodeList)
        {
           FacesConfigSystemEventListenerType<FacesConfigApplicationType<T>>  type = new FacesConfigSystemEventListenerTypeImpl<FacesConfigApplicationType<T>>(this, "system-event-listener", childNode, node);
           list.add(type);
        }
        return list;
     }
docs: Returns all <code>system-event-listener</code> elements
  @return list of <code>system-event-listener</code>