OW2 FraSCAti is a component framework providing runtime support for the Service Component Architecture (have a look at SCA specifications). The OW2 FraSCAti runtime supports SCA composite definitions which are conform to the SCA Assembly Model V1.0 specification, Java component implementation (SCA Java Component Implementation V1.0 and SCA Java Common Annotations and APIs V1.0), remote component bindings using Web Services (Soap or RESTful) and Java RMI protocols.
For more details on SCA, here are a few helpful links:
White paper - Introducing SCA - David Chappell
Article - Composing SCA Solutions and SCA’s Approach to Policy and Bindings Presentations - Boris Lublinsky
Binary distributions are available on the OW2 FraSCAti forge: http://forge.objectweb.org/project/showfiles.php?group_id=329.