Persism is a wood simple, auto discovery, auto configuration, and convention over configuration ORM (Object Relational Mapping) library for Java and .NET.
QxOrm is a C++ library designed to provide Object Relational Mapping (ORM) feature to C++/Qt developers. QxOrm engine is based on a simple and non intrusive mapping function by class to provide : Persistence, Serialization, Introspection, Reflection.
FFJUXS Free Java Universal XML Serializer: The aim of this project is to create a serializer that supports anything the standard Java Serializion supports (not just JavaBeans) - and more - using the XML file format and giving many options.