Hi, maybe a little late on this but I've been testing differet scenarios using tomee and deltaspike and using JTA these are the ones I found out working:
@Produces @ApplicationScoped public EntityManagerFactory createEntityManagerFactory() { System.out.println("Producing EMF......"); return Persistence.createEntityManagerFactory("ValidationPU"); } @Produces public EntityManager createEntityManager(EntityManagerFactory entityManagerFactory) { System.out.println("Producing entitymanager....."); return entityManagerFactory.createEntityManager(); } with a little help from @romain i realized that my em's were resource_local using the producer shown in the DS docs. br hw -- View this message in context: http://apache-deltaspike-incubator-discussions.2316169.n4.nabble.com/JPA-doc-related-to-EM-Producer-tp4658999p4659077.html Sent from the Apache DeltaSpike Incubator Discussions mailing list archive at Nabble.com.