Is it possible to connect to HornetQ server using ActiveMQ Artemis client libraries (1.5.x or 2.x)?
ActiveMQ Artemis has kept compatibility with HornetQ in that HornetQ clients can connect to an ActiveMQ Artemis broker. Compatibility has also been maintained so that newer ActiveMQ Artemis clients can connect to older ActiveMQ Artemis brokers. However, there's no tests that cover ActiveMQ Artemis clients connecting to a HornetQ broker. It may work, but there's no guarantee. The recommendation would be to simply continue using HornetQ clients to connect to HornetQ brokers.