All - When I use Data-Rest and a JTA transaction manager, I get an exception that the connection has been closed (upon accessing a REST url to retrieve the data for a single entity, such as /people/1). I do not get this when I retrieve all the entities at once (such as /people) - or at all when I use a JPA transaction manager. It appears that there is a Hibernate flush that is occuring that is causing the JTA problem. Has anyone else had this problem?