POJ - opensso - Session Architecture and Project Sources have been released.

The goal of Open Web SSO project is to provide an extensible implementation of identity services infrastructure that will facilitate Single Sign-On for web applications hosted on web and application servers. This implementation will offer the following core identity services:

* Authentication
* Session
* Logging

Apart from the above mentioned services, the Open Web SSO project will also provide a platform for creating and integrating custom services where necessary.
https://opensso.dev.java.net/