JBoss EAP configuration is extremely difficult, you often find yourself having to use magic commands to modify obscure properties. Perhaps these options are documented somewhere, but finding relevant documentation is quite hard, and understanding it is even harder. I used to think IBM WebSphere hard to configure, but at least they have extensive documentation in place with (relatively) easy to follow instructions for most use cases. It seems that RedHat support is struggling with the same issue, as the conclusion of JBoss EAP configuration issues seem to depend highly on the level of expertise of whoever is handling the case.