JWarp is a component framework that helps building large servlet applications. It contains a runtime environment and a persistence engine. All code is 'simple and stupid' making JWarp an powerful and extendable framework. All components are stable and
The iChilli mobile J2EE platform provides a J2EE compliant runtime environment for both server and mobile platforms, such as J2ME, MIDP or other CLDC based devices. For example iChilli runs on the PersonalJava enabled Sharp Zaurus and Compaq's iPAQ.
Vesuf is a model-based User Interface Development Environment (MB-UIDE) which uses UML based models for UI Spec. An interpreter creates UIs from the models at runtime. It is possible to build different UI-modalities for one application (eg AWT, WML, ...)
Jeenie is a Win32 screensaver written in Java and C. It depends on a Java 2 RuntimeEnvironment and provides base screensaver support. You can use it to develop your own private or corporate screensaver without the need for a fully blown C++/MFC environm
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 Javaruntimeenvironment.
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.
CF50 is an open source point of sale system for hotels and motels. CF50 will run on any platform for which there is a JavaRuntimeEnvironment. It will feature a timeclock, room management, employee management, reservation management, and much more!