the relationship in the parent entity is mapped like: @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "subject") | public List<Actor> getActors() { | return this.actors; | } | the child entity has: @ManyToOne(fetch = FetchType.LAZY) | @JoinColumn(name = "subjectid", nullable = false) | @NotNull | public Subject getSubject() { | return this.subject; | } | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4066721#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...