Java Persistence/Kodo

Kodo, was originally developed as an Java Data Objects (JDO) implementation, by SolarMetric. BEA Systems acquired SolarMetric in 2005, where Kodo was expanded to be an implementation of both the JDO and JPA specifications. In 2006, BEA donated a large part of the Kodo source code to the Apache Software Foundation under the name OpenJPA. BEA (and Kodo) were acquired by Oracle. Kodo development is now stopped and users are referred to EclipseLink