I'm looking to study well written java source code for server side/high performance systems. Looking up projects which use disruptor will be a great start.
Nova can be found on github under https://github.com/oli-d/nova
Very small, very simple. The basic priciple is to port the Node.js programming model to Java. The focus is not to build full blown web servers in 5 minutes, but to provide a tiny lib that provides everything needed to build scalable and fast server components.
Project was dormant for 6 months now, but will be pushed again sooon... :)