When you add EAP 6.1 (or AS7) as a server and then try to edit the server, the startup poller will be empty and there will be only Timeout and Web Port to choose from, no AS7 management.

Note that this does not prevent the server from working correctly (but I don't know what kind of polling is actually used).

This happens with both AS 7.1.1 and EAP 6.1, but not wildfly 8.

I side effect is that if you want to change some settings of the server it won't let you save the editor because the empty poller is wrong.