Spring Integration writing to IBM MQ

Question

Using Boot 2.2.2 and Spring Integration 5.2.2 interacting with another application via IBM MQ Series 9; the messages need to be purely text (not JMS). SI can get the text messages correctly, however I cannot seem to put to MQ without a JMS header.

Using JMS without SI, I can write a pure text message by using;

    jmsTemplate.send(myQueue, new MessageCreator() {

        @Override
        public Message createMessage(Session session) throws JMSException {
            return session.createTextMessage(message);
        }
    });

When using SI I have the following;

    @Bean
    public IntegrationFlow toQueue(
            ConnectionFactory connectionFactory, 
            @Value("${app.outQueue}") String myQueue
    ) {
        return IntegrationFlows
            .from("myIncomingChannel")
            .headerFilter("*")
            .handle(
                Jms
                    .outboundAdapter(connectionFactory)
                    .configureJmsTemplate(jts -> jts.jmsMessageConverter(new SimpleMessageConverter()))
                    .extractPayload(true)
                    .destination(myQueue)
            )
            .get();
    }

I have tried 8 combinations of;

1. With/without configureJmsTemplate
2. extractPayload true or false.
3. With/without headerFilter

All tests give me a JMS message on the queue. How do I get SI JMS to write a plain text message?

Answer 1

I resolved it using the answer from this post How to remove default Spring JMS Template headers when sending a message to an MQ?

The working version is;

.handle(
   Jms
      .outboundAdapter(connectionFactory)
      .destination("queue:///" + myQueue + "?targetClient=1")
   )
.get();