"Use Entity Manager" context-sensitive menu in an EJB

converts:

@Stateless
public class EmployeeBean {

}

TO

@Stateless
@PersistenceContext(name = "persistence/LogicalName", unitName = "org.sample_schema-gen_war_1.0-SNAPSHOTPU")
public class EmployeeBean {
    @Resource
    private javax.transaction.UserTransaction utx;

    protected void persist(Object object) {
        try {
            Context ctx = (Context) new InitialContext().lookup("java:comp/env");
            utx.begin();
            EntityManager em = (EntityManager) ctx.lookup("persistence/LogicalName");
            em.persist(object);
            utx.commit();
        } catch (Exception e) {
            Logger.getLogger(getClass().getName()).log(Level.SEVERE, "exception caught", e);
            throw new RuntimeException(e);
        }
    }
}

where as the simplified code can be:

@Stateless
public class EmployeeBean {

    @PersistenceContext
    EntityManager em;
    
    protected void persist(Object object) {
        em.persist(object);
    }
}