jOVAL™: OVAL® implemented in Java™. For free.
jOVAL has the potential to let you scan any machine, from any other machine.
The jOVAL library provides a comprehensive OVAL data model, an OVAL document processing engine, plug-in implementations for both remote and local scanning, and adapter implementations supporting many OVAL object types. It is intended to be used in applications that call for an embedded OVAL interpreter.
For more information on the project, visit http://joval.org.