Ok new error when doing seam gen from prompt I tried to generate entities! And got this error: 15:56:16,466 WARN [ServiceController] Problem starting service persistence.units:ear=helloworld.ear,unitName=helloworld | javax.persistence.PersistenceException: org.hibernate.HibernateException: Wrong column type: MESSAGEBLOB, expected: varbinary(255) | at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:720) Messageblob is from the table JMS_MESSAGES in my hsqldb. shouldn't this be correct why does seam expect another column type? thanks and best regards, Mussie View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4120925#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...