“java.lang.AbstractMethodError: org.hibernate.ejb.EntityManagerFactoryImpl.createEntityManager” with Hibernate

Question

I\'m working with Hibernate, EJB and a Restfull webservice. I have this exception below, and i don\'t know what to do.

WARNING:   EJB5184:A system exception          


        

Answer 1

I've found this: http://kyryloholodnov.wordpress.com/2013/08/19/hibernate-4-2-4-and-jpa-2-1/

You can see the properties you have to set in order to make Hibernate work with JPA 2.1.

Cheers !

Answer 2

AbstractMethodError usually is caused by incompatible binaries; for this specific error there is an opened (unresolved) ticket but with some comments

As an example, the original issue report mentions a problem calling EntityManagerFactory.createEntityManager(javax.persistence.SynchronizationType, java.util.Map). Well thats a new method added in JPA 2.1. That won't work with Hibernate 4.2 or earlier as 4.2 is JPA 2.0 compliant.

Check your jar files version for incompatibilities.