This is an implementation of an early-draft specification developed under the   Java Community Process (JCP) and is made available for testing and evaluation   purposes only. The code is not compatible with any specification of the JCP.

   OpenJPA is bundled with the schemas from the JPA specification, by
     Sun Microsystems and licensed under the CDDL 1.0. The source code is
     available at: https://glassfish.dev.java.net/source/browse/glassfish/