1. ProActive - ProActive is an open source Java library for parallel, distributed, and concurrent computing.
Update : the new forge location is at:
http://gforge.inria.fr/projects/proactive/
2. C-JDBC - Clustered JDBC gives your applications a transparent (no code modification) access to a cluster of databases even if your database engines are not cluster-aware.
Development Status: 5 - Production/Stable [Filter]