New standalone “run Git as a server” Java stack.
There’s a version prepackage with Jetty for a download-and-go approach, or you can get a WAR and run it in your servlet container of choice.
It uses Jgit as the actual Git daemon. It does NOT support ssh yet, just http/https and git protocol.
Source can be found on Github: https://github.com/gitblit/gitblit