I downgraded the JBoss EAP to 6.4.3 and then I am able to see the topology view. I was not able to find proper software prerequisite checklist for patches anywhere. It would be nice if Redhat document them for each patch.
On download page of every patch there are release notes and list of changes with links to issue tracker.
just scroll down.
Look if it has enough disk space for writing server logs.