JPOX provides transparent persistence of Java objects. It fully complies with the JDO 1.0 and JDO 2.0 specifications. It supports persistence to all of the major RDBMS on the market today. It allows querying using either JDOQL, SQL, or JPQL. It comes with its own byte-code enhancer. Its 1.1.0 release is Sun's "Reference Implementation" for JDO 2.0. Its 1.2 release will implement the JPA 1.0/JDO 2.1 specifications and support persistence to DB4O. It is highly extensible using OSGi technology. License: The Apache License 2.0 Changes: This release includes fixes for a couple of possible deadlocks.

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