Jonathan Elkharrat wrote:since you are using "RESOURCE_LOCAL" the application need the persistence.xml
so make sure the META-INF/ folder is available in your classpath.
(took me 1 hour to figure it out when i tried that example...)
second, since you are using it the local way, the <jta-data-source> is not necessary,
it's used to map to a datasource in the server.
Any clues? Am i missing any jars in to server runtime