According to:- http://openjpa.apache.org/jpa-2.1-development-process.html
openjpa 2.4 is the release that should implement JPA 2.1. But I am told on the tomee mailing list that although tomee 2.0 included an openjpa 2.4 snapshot it does not support jpa 2.1. I am confused, can someone enlighten me. David