JavaSpaces

Java/Jini service - Distributed persistence and algorithms

http://www.artima.com/jini/jiniology/js1P.html Building distributed applications with conventional network tools usually entails passing messages between processes or invoking methods on remote objects. In JavaSpaces applications, in contrast, processes don't communicate directly, but instead coordinate their activities by exchanging objects through a space, or shared memory.

Build and Use Distributed Data Structures in Your JavaSpaces Programs http://www.artima.com/jini/jiniology/js6.html

http://www.artima.com/javaseminars/modules/Jini/