Andy, I have the same problem with generated entities. Did you find any workaround? My database was generated by Hibernate using org.hibernate.tool.hbm2ddl.SchemaExportTask Id supposed to be auto generated. However, when I add @GeneratedValue to the Id getter I am getting the exception on startup: ObjectName: persistence.units:ear=spot4.ear,unitName=spot4 State: FAILED Reason: javax.persistence.PersistenceException: org.hibernate.HibernateException: Missing sequence or table: hibernate_sequence I Depend On: jboss.jca:service=DataSourceBinding,name=spot4Datasource With the old variant of Hibernate this auto sequence generated worked with the following annotation used in Doclet: /** * @hibernate.id column="ID" generator-class="increment" unsaved-value="0" */ Thank you! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4035400#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...