Hi TH, and thanks for answering. I'm running JTA datasource and running repository within an EJB transaction.
However, what I found out is that I need the entoitymanagerconfig with resolver or else this error occurs. I've made a simple test project (https://github.com/hwaastad/TomeeDsValidation.git) So if you remove the @EntityManagerConfig(entityManagerResolver = CrmEntityManagerResolver.class,flushMode = FlushModeType.COMMIT) Then this error will occure. Any idea why? br hw -- View this message in context: http://apache-deltaspike-incubator-discussions.2316169.n4.nabble.com/ContainerManagedTransactionStrategy-tp4659084p4659102.html Sent from the Apache DeltaSpike Incubator Discussions mailing list archive at Nabble.com.