How to hold messages in JMS Message Queue if there are any error after consuming the message?

Question

My scenario is - I post message in to queue and once message is consumed I am sending it to third party middleware application. If that middleware application is down then my posted message gone for toss. I do not want to lose that message if middleware application is down instead I want it to be on hold or waiting in the queue. Please suggest, how to handle this scenario?

Answer 1

You should create the session like this:

Session session = connection.createSession(false,
                       Session.CLIENT_ACKNOWLEDGE);

when you try to deliver the message to your third party app:

• If it's working you should acknoledge the message.

• If it is down you should'nt acknwoledge it, this way the JMS provider will be able to rediliver it,and the message will not be lost. message.acknowledge();

Also, you can take a look at this: JMS AUTO_ACKNOWLEDGE when is it acknowledged?