http://pastie.org/9196859 is a NPE that occurs when the CDI BeanManager
is accessed during the first (EntityManagerFactoryBuilder) phase.
Hibernate ORM shouldn't use the BeanManager until the second bootstrap phase.

Links to git integration efforts to bring Hibernate 5.x into WildFly 9:
https://github.com/scottmarlow/wildfly/tree/hibernate5
https://github.com/scottmarlow/jipijapa/tree/JIPI-31