DataNucleus AccessPlatform is a standards-compliant Java persistence product. It is fully compliant with the JDO1, JDO2, JDO2.1, JDO2.2, JDO3, JPA1, and JPA2 Java standards, and provides a REST API. It complies with the OGC Simple Feature Spec for persistence of geospatial Java types. It allows access to all popular RDBMS available today, together with the MongoDB, LDAP, NeoDatis, JSON, Excel/ODF spreadsheets, XML, BigTable, HBase, and Neo4j databases.

Changes:
Support for using JPA 2.1 API jar was added. Support for JPA 2.1 ForeignKey/Index schema constructs was added. Support for JPA 2.1 Criteria UPDATE/DELETE queries was added. Support for using JPA 2.1 FROM "ON" constructs with Criteria was added. Support for vendor extension @Index annotation was dropped (replaced by official JPA 2.1 annotation). Some other improvements were made

URL:
DataNucleus AccessPlatform – Freecode

DataNucleus AccessPlatform 3.3.0 M1-0526_datanucleus-accessplatform_3.1.5.jpg