When we upgraded the dependencies to Infinispan 7 and Hibernate Search 5 we fixed the modules for WIldFly but not for EAP (lack of time).

From the discussion in IRC:

gmorling interesting, so was it caused by the hsearch 5 update?
sannegrinovero I don't remember the details but it was mostly because of Infinispan 7
sannegrinovero remember the JPA module of EAP leaks the existing Infinispan from EAP
sannegrinovero (the classloader issues I was trying to explain at our meeting)
sannegrinovero we should be able to get it to work
sannegrinovero but requires some more modules hacking which we couldn't do the release night
emmanuel sannegrinovero: ah also diff ORM version I guess