Hello to all, Now,having got EJB3.0 working with Hibernate, I'm set to deploy EJB 3.0 application using toplink as Persistence Provider.. But I'm getting the following error : | | Persistence Unit Model; state Deployed; factoryCount 1 | 03:02:15,952 ERROR [STDERR] javax.persistence.TransactionRequiredException: | Exception Description: No transaction is currently active | 03:02:15,953 ERROR [STDERR] at oracle.toplink.essentials.internal.ejb.cmp3.transaction.EntityTransactionWrapper.throwCheckTransactionFailedException(EntityTransactionWrapper.java:70) | 03:02:15,953 ERROR [STDERR] at hibernate.transaction.manager_lookup_classoracle.toplink.essentials.internal.ejb.cmp3.transaction.base.EntityTransactionWrapper.checkForTransaction(EntityTransactionWrapper.java:62) | 03:02:15,953 ERROR [STDERR] at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl.checkForTransaction(EntityManagerImpl.java:616) | 03:02:15,953 ERROR [STDERR] at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl.joinTransaction(EntityManagerImpl.java:646) | 03:02:15,953 ERROR [STDERR] at org.jboss.ejb3.entity.ManagedEntityManagerFactory.getTransactionScopedEntityManager(ManagedEntityManagerFactory.java:183) | 03:02:15,953 ERROR [STDERR] at org.jboss.ejb3.entity.TransactionScopedEntityManager.persist(TransactionScopedEntityManager.java:182) | 03:02:15,954 ERROR [STDERR] at com.prapansol.demos.service.SRServiceBean.persistEntity(SRServiceBean.java:76) | In Hibernate we have hibernate.transaction.manager_lookup_class How can we make toplink look up the JBossTransactionManager class? Any idea? Thnks for your help in advance, Samba View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4103441#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...