So, I can tell you:
- Bamboo (ci.openmrs.org) doesn’t have anything else other than OpenJDK for a while now
- All our test environments (including demo) are running with OpenJDK for almost a year now.
I’m going to be a little bit surprised that we find problems now, if pretty much all our tests are in OpenJDK.
That said, you probably want to change travis configurations to use openjdk.