The ActiveMQ brand has a number of distinct products. Apollo started off as an attempt to rewrite ActiveMQ with non-blocking IO. Instead it became a separate p

The ActiveMQ brand has a number of distinct products. Apollo started off as an attempt to rewrite ActiveMQ with non-blocking IO. Instead it became a separate project. Here's some history [1]. Artemis is rebranded HornetQ (from JBoss) being merged with some of the original ActiveMQ [2]. The 'original' ActiveMQ also still exists. [1] https://activemq.apache.org/apollo/documentation/architecture.html https://activemq.apache.org/apollo/documentation/architectur... [2] https://en.wikipedia.org/w/index.php?title=HornetQ&oldid=706723067#HornetQ_Apache_donation_and_Apache_Artemis_1.0.0_release https://en.wikipedia.org/w/index.php?title=HornetQ&oldid=706...