Using jboss 4.0.5; a callback timer method on a stateless bean with transaction attribute REQUIRED_NEW does not seem to 'isolate' the transaction when called concurrently. A org.hibernate.StaleStateException occurs and the whole thing is rolled back. | @Timeout | @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW) | public void handleTimeout(Timer timer) { | // pseudo code: | // find obj (called on a different session bean with default settings) | // if found delete object | // The delete causes the stalestate when the entire batch is committed | } | According to the EJB3.0 specifiation the situation above should work, but it isn't unless I am doing things wrong. Any suggestions? Thanks in advance! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4071981#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...