Hi Tiago, I faced similar issues with hibernate, RF and lazy initialization.
Finally I found that it was because of proxying that is done by hibernate. I finally solved it by using the @Proxy(lazy=false) annotation. @Entity @Table(name = "CALL_TABLE") @Proxy(lazy=false) public class Call extends Base { private static final long serialVersionUID = 3748496188367374385L; @Temporal(TemporalType.TIMESTAMP) Date startTime; ... } Hope this helps! -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/SNiKFV_UTlgJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.