I have a stateful session bean that uses an extended persistent context and is annotated with @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED). In a transactional action method annotated with @TransactionAttribute(TransactionAttributeType.REQUIRED), I perform business level validation. If the validation fails, I rollback the transaction using Seam's @Rollback annotation. However, the EJB specs indicates that a rollback will cause all entities in the entitymanager to be become detached. This seems like overkill because then I need to merge back all the instances and allow the user to fix the validation errors. Are there any best practices with this? Should I only rely on using Hibernate validation with seam's s:validateAll tag? Thank you. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4063999#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...