vRules4j--Object Oriented Java Object Validation/Decision Rule engin
vRules4j--The best completely Object Oriented Java Object Validation/Decision Rule engine,which is born for taking over all validation responsibility in java business-enterprise industry and looking forward to providing Perfect/Lightweight solution.
JaDiMa (Java Distributed Machine} is a collaborative platform to construct
highperformance distributed java applications on grid platforms.
It is a system that automatically and transparently manages the remote libraries used in a java application.
Oxygen Persistence Framework (http://oxygen.io) - highly flexible, highperformance, layered object relational mapping framework with clustered loading, oosql and pluggable feature architecture. It is used in large projects already.