message.setJMSDeliveryMode没有效果

ActiveMQMessageProducerSupport:
public void send(Message message) throws JMSException {
         this.send(this.getDestination(),
                   message,
                   this.defaultDeliveryMode,
                   this.defaultPriority,
                   this.defaultTimeToLive);
     }

    public void setDeliveryMode(int newDeliveryMode) throws JMSException {
         if (newDeliveryMode != DeliveryMode.PERSISTENT && newDeliveryMode != DeliveryMode.NON_PERSISTENT) {
             throw new javax.jms.IllegalStateException("unknown delivery mode: " + newDeliveryMode);
         }
         checkClosed();
         this.defaultDeliveryMode = newDeliveryMode;
     }

send(
         Destination destination,
         Message message,
         int deliveryMode,    //直接传入传递模式
         int priority,
         long timeToLive)