High performance OODB engine

Today, we have released Version2 of JDOInstruments OODB.
The database engine was redesign, and has evolve in a high performance engine.

JDOInstruments is an embedded object oriented database programmed in java, it is also an implementation of Sun's Java Data Objects (JDO) specification for the transparent persistence of Java objects.

http://www.jdoinstruments.org/