[jboss-user] [JBoss/Spring Integration] - Problem persisting data using Spring + Hibernate JPA

Hello, I am getting the following exception when I try to insert a record into mysql. I am using Spring 2.03 with Hibernate JPA. I have pasted my code below and the config files. Any help would be greatly appreciated. Suneet ---- service class ---- public class ServiceMgr { protected ServiceDAO serviceDao; public ServiceMgr() { } public ServiceMgr(ServiceDAO serviceDao) { super(); this.serviceDao = serviceDao; } public Service getService(String id) { return serviceDao.findById(id); } @Transactional( propagation = Propagation.REQUIRED, readOnly = false ) public void addService(Service serv) { serviceDao.persist(serv); } ---- DOA Impl class ---- public class ServiceDAOBean implements ServiceDAO { private static final Log log = LogFactory.getLog(ServiceDAOBean.class); private EntityManager entityManager; private EntityManagerFactory emf; @PersistenceContext public void setEntityManager(EntityManager em) { entityManager = em; } @PersistenceContext public void setEntityManagerFactory(EntityManagerFactory emf) { this.emf = emf; } @Transactional( propagation = Propagation.REQUIRED, readOnly = false ) public void persist(Service transientInstance) { log.debug("persisting Service instance"); try { entityManager.persist(transientInstance); log.debug("persist successful"); } catch (RuntimeException re) { log.error("persist failed", re); throw re; } } ---- Spring applicationContext.xml ---- <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd"> <constructor-arg ref="serviceDAO"></constructor-arg> <tx:annotation-driven transaction-manager="transactionManager" /> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031362#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...