Apache activemq artemis v.2.28.0: How to set on demand whether a message has an expiration time or not?

I'm learning how to use the Artemis messaging broker. In my example application, I'm applying a producer-consumer scheme. I want some messages that are sent to a queue to have an expiration time. My sample application is developed in Spring Boot. I use the following method to send messages:

public void send(JmsTemplate jmsTemplate, String queueName, String textMessage, long timeToLive) throws JMSException {
	jmsTemplate.setTimeToLive(timeToLive);
	jmsTemplate.convertAndSend(queueName, textMessage, new MessagePostProcessor() {
		public Message postProcessMessage(Message message) throws JMSException {
			message.setJMSExpiration(timeToLive);
			return message;
		}
	});
}

I have defined the following configuration in the broker.xml file:

<address-setting match="#">
	<dead-letter-address>DLQ</dead-letter-address>
	<expiry-address>ExpiryQueue</expiry-address>
	<redelivery-delay>0</redelivery-delay>
	<!-- with -1 only the global-max-size is in use for limiting -->
	<max-size-bytes>-1</max-size-bytes>
	<message-counter-history-day-limit>10</message-counter-history-day-limit>
	<address-full-policy>PAGE</address-full-policy>
	<auto-create-queues>true</auto-create-queues>
	<auto-create-addresses>true</auto-create-addresses>
	<auto-create-jms-queues>true</auto-create-jms-queues>
	<auto-create-jms-topics>true</auto-create-jms-topics>
</address-setting>

With this configuration, I have checked through the management console that the messages have the Expiry field set to 0 even if I set a value other than 0 in the timeTolive field. I have modified the configuration of the broker.xml file to this one:

<address-setting match="#">
	<dead-letter-address>DLQ</dead-letter-address>
	<expiry-address>ExpiryQueue</expiry-address>
	<expiry-delay>1000</expiry-delay>
	<redelivery-delay>0</redelivery-delay>
	<!-- with -1 only the global-max-size is in use for limiting -->
	<max-size-bytes>-1</max-size-bytes>
	<message-counter-history-day-limit>10</message-counter-history-day-limit>
	<address-full-policy>PAGE</address-full-policy>
	<auto-create-queues>true</auto-create-queues>
	<auto-create-addresses>true</auto-create-addresses>
	<auto-create-jms-queues>true</auto-create-jms-queues>
	<auto-create-jms-topics>true</auto-create-jms-topics>
	</address-setting>
</address-settings>

With this configuration the opposite is true. If I set the timeToLive field to 0, the Expiry field does not show the value 0 and shows the timestamp of when the message will expire. I don't understand why.

Could you give me some orientation on how to solve this problem? Is it possible to set on demand whether a message has an associated expiration time or not?

Cheers

You're attempting to use the setJMSExpiration() method, but this is not allowed and will have no impact on the message. The JavaDoc for this method states:

> This method is for use by JMS providers only to set this field when a message is sent. This message cannot be used by clients to configure the expiration time of the message. This method is public to allow a JMS provider to set this field when sending a message whose implementation is not its own.

Instead you should use the setTimeToLive() method on the corresponding MessageProducer or JMSProducer.