EasyLVS is intended to make setting up/running a Linux Virtual Server (LVS) and cluster a snap. Web based administration make for easy setups. You can run the advanced server monitoring as a standalone server as well. Written in 100% java.
YaJal is an abstraction layer written in Java over JXTA. It hides all the complexity in setting up and handling JXTA classes. It offers you an easy framework where to develop peer-to-peer applications.