Excellent Java/SOAP-based generic monitoring framework
This project is an excellent generic monitoring framework implemented with Java and SOAP.
It's designed for a professional developer or development team to pick up and re-use when implementing a monitoring system for a specific purpose.
It will be less useful to system administrators who just want to monitor regular networks and server farms, as it is complex and not a packaged application per se.
An open, cross-platform journaling program.
A scientific plotting package.