Nennius is an object-oriented application engine. Although initially intended to be a time and expense tracking tool, it has since been improved upon to support a wide array of data types and relationships. It offers the ability to run multiple, concurrent Web applications from a single Nennius engine. Each Web application is fully customizable and can easily be modified to fit almost any existing business model.
SNAP Platform is a development toolkit that packages into an easy to install solution the the Jikes Java compiler, the SableVM Java-like virtual machine and the GNU Classpath Java-like API, and the Eclipse universal tools platform, plus sample programs with source code and developer documentation.
Hawron is a GUI tool for the Apache XML Web Development Framework Cocoon and pure Java. It mainly supports the "Offline Generation Part" of Cocoon, but an embedded Servlet Container (Jetty) for Cocoon's default environment is included. Hawron tries to help Cocoon users with some extra features like publishing offline generated files (ftp, sftp) and editing content (embedded OpenOffice).
JAM (JavaGen Ant Modules) allows Java/J2EE developers to create robust, test-driven build environments with just a few lines of Ant script. Builds are simplified with a standard set of commands that you customize for your project. The Maven-to-Ant bridge manages classpaths, dependencies, versioning, and resource downloads automatically. JAM modules support JBoss, Tomcat 5, Resin, Oracle OC4J, JUnit, Cactus, XDoclet, CVS, Axis, Castor, JMX EJBs, and Hibernate.