我试图让bdi代理选择一个特定的意图句柄，而不是其他相互竞争的意图。然而，相互竞争的意图仍然同时执行。这是我的密码：

private Trigger handle = Trigger.parseTrigger("+!handle(claim)");

    @Override

    public Intention selectIntention(Queue<Intention> intentions) {
            Iterator<Intention> i = intentions.iterator();
            while (i.hasNext()) {
                Intention cit = i.next();
                if (cit.hasTrigger(unattendedLuggage, new Unifier())) {
                    System.out.println(cit);
                    i.remove();
                    return cit;
                }
                else{System.out.println(cit);}
            }

        return super.selectIntention(intentions);
    }
}