UltraESB is the first [and still the only] Open Source Enterprise Service Bus (ESB) to utilize Zero-copy proxying with Memory Mapped files and Java Non-Blocking IO for extreme performance!
Alice
A RESTful access to the RabbitMQ queue server, administration functions and (soon) monitoring.
Wonderland
A web-UI front-end to Alice, driven by Sammy.
Igenko is an open source CMS and eCommerce solution, natively designed with REST principles, extensibility and Rich Internet Application in mind.
It is based on Java Content Repository, Spring, Flex, GraniteDS and PureMVC technologies.