try: | @Entity | public class Tsperson implements Serializable { | @Id | @Column(name="TSPERSON_ID", nullable = false) | @SequenceGenerator(name = "tsperson_sequence", sequenceName = "SEQ_TSPERSON_ID") | @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="tsperson_sequence") | private Long tspersonId; | why do you need to flush data? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4025013#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...