I have a simple producer for a requestscoped entitymanager:

@PersistenceContext(unitName = mydatasource)
private EntityManager em;
@Produces
@myEM
@RequestScoped
protected EntityManager createEntityManager()

protected void closeEntityManager(
@Disposes @myEM EntityManager entityManager) {
if (entityManager.isOpen())

}

I inject this to applicationScoped bean. In the log, I see for each close of entityManager, wildfly logs an error:
WELD-000019: Error destroying an instance org.jboss.as.jpa.container.TransactionScopedEntityManager@7c213180 of Producer Method [EntityManager] with qualifiers [@myEM @Any] declared as [[BackedAnnotatedMethod] @Produces @myEM @RequestScoped protected createEntityManager()]