Arch4J was originally developed by members of SpiderLogic.
They are the software development consulting branch of Sycamore Group
and specialize in enterprise Java architecture.
Sycamore and SpiderLogic are now a service of
Wipfli Ullrich Bertelson LLP.
Check out the merger announcement.
Development on Arch4J has spread beyond the original group
and is contributed to weekly in the form of feedback and requests.
It is hoped that this project will take on an open source life of its own
in the form of discussion and code contribution by those interested in J2EE.