First Maia EAP brings you the following JavaEE support improvements: EJB 3.1 @Singleton Session Bean JPA 2.0 @ElementCollection attribute type, plus freshly allowed attribute types in embeddable objects (@OneToOne, @Embedded, etc.) JPA 1.0/2.0 with Hibernate provider will not throw false-positive warnings about certain JPA specification violations that occur because of differences in JPA and Hibernate.