Hello, 've update the Oracle version on differents tutorials relative to MAC OS:
Installation OpenMeetings 4.0.4 on El Capitan OS X Installation OpenMeetings 4.0.4 on macOS High Sierra Installation OpenMeetings 4.0.4 on macOS Sierra https://cwiki.apache.org/confluence/display/OPENMEETINGS/Tutorials+for+ installing+OpenMeetings+and+Tools Regards Alvaro
