MUSIC is an open platform for the development of self-adaptive context-aware mobile applications, which includes a runtime environment, development tools and pilots. MUSIC can be deployed on Windows, Linux, Windows Mobile and Android devices.
sandboss is a messaging framework generator that creates complete communications, persistency, UI forms, configuration management, and runtime control infrastructure from struct and node declarations. Full generator support in the dependency-aware build
The XPS is a scalable platform for meta-programming and domain engineering. It provides a virtual machine, compiler, and runtime library that make it possible to efficiently develop, debug, and run programs based on XPL (eXtensible Programming Language)
JCGrid is an easy-to-use tools for real-world grid-computing. It requires only to install Java Runtime and you can easy split your cpu-intensive task among several Workstations/PC/Mac/etc. It includes support for POVRay and MandelGrid as usage examples.
C.O.R.E. - Common Object Runtime Environment
A foundation for multi-node projects, language independent.
Provides central point for storing/retrieving configuration data for all components of project, centralized logging service, NLS service...
Nano Servlet Engine is a really small-sized HTTP server (with Java Servlets(TM) support in the future). Due to its size (100kb) it's possible to use it on mobile devices with a Java runtime environment.
JRiva is a J2EE (TM) Runtime Implementation Via Aspectj (www.aspectj.org). This project provides a set of classes and aspects which work together to "mimick" an EJB runtime environment.