This project provides a delegate model authentication and authorization system which is driven from XML descriptions of the services' interfaces. On a method and argument level, you can detail your authorization mechanisms so that roles are what controls access, not users using java permissions.
Jini Community Information and Projects at java.net. The Jini Starter Kit developed by Sun Microsystems is now the Apache River Project. See the Links section for a link to that project. Otherwise, you will find below a list of some projects that use the Jini technology to provide distributed software systems. Many of these projects are examples of using Jini for a particular purpose.