Datanucleus access platform 3.1.2 released

Datanucleus access platform 3.1.2 ("Kepler") was recently released.

Datanucleus access platform is a Java-based data persistence framework, similar to hibernate, eclipselink, and other frameworks. It supports multiple relational database systems and nosql databases such as neo4j and MongoDB, there are also LDAP, XML, and excel.

3.1.2 improvements required by the moderator include:

Fix to lookup of Object Inheritance level in some corner-case situations
Provide typeconverters for persisting serializable object as byte [] or base-64 encoded string
Fix clone of jpql query so that "from" is cloned
Log which fields (numbers) are being attached
Complete todo in fetchplan code for dynamic fetch groups from PM
JDO: Fix bug in map key/value metadata handling introduced in 3.1.1
JPA: Fix bug in use of query. getparameters when used by spring data JPA
XML: fix to class loading in relation Lookup
Neo4j: fix to some jpql queries causing exception
Neo4j: fix to lazy load iterator for empty result Condition
Neo4j: fix to stackoverflow with Bidirectional relation Retrieval
Neo4j: Support persistence of Arrays
Neo4j: Support persistence of serialised Fields
Neo4j: Support "increment" value Generator
MongoDB: Support for capped dB collections (size limit on objects of a type)
MongoDB: fix to replica-set URL string parsing
RDBMS: extend support for stored procedure parameters to other types
Various other bug fixes and minor improvements