The first Eclipse release of Open Message Queue is 5.1.4. This is release supports JMS 2.0.1. Eclipse Open Message Queue 5.1.4 is the JMS provider in Eclipse GlassFish Server 5.1.
Click here to view the license.
Eclipse Open MQ is included with Eclipse GlassFish Server, full platform. You can download Eclipse GlassFish Server here.
If you are looking for older versions of Open Message Queue, produced by Oracle, these are still are available on the legacy Open Message Queue Downloads page.