title: Hibernate or EclipseLink for JPA?
body: <p>I was wondering if anyone has experience with the JPA2.0 implementation of any of those frameworks? Especially together with Spring3.x which comes with EclipseLink support. </p>
  
  <p>Do you use any of those frameworks and JPA2.0 for production? Any <em>severe</em> issues?</p>