Are you sure you acked the messages?
You should also use the latest version.
Thanks for your fast answer.
Yes, I think I acked the messages (for manual Ack, I didn't changed anything in the example)
I just tried with the latest versions found in https://repository.jboss.org/nexus/content/groups/public/ :
- 2.2.7.Final for HornetQ
- 2.2.3-SNAPSHOT for the REST interface