I am working with GlassFish 3.1.2.2 (I can not upgrade to 4 due to OS restrictions).
I\'m interested in upgrading JPA 2.0 to JPA 2.1 GlassFish 3.1.2.2. How can I ac
Did you try just replacing the EclipseLink and JPA jar files in Glassfish?
It will probably work, but if you use managed persistence units they will not expose any JPA 2.1 API, you would need to unwrap the EntiyManager to access these.