Freshmeat page: http://freshmeat.net/projects/kaffe/
Kaffe is a clean room implementation of the Java virtual machine, plus the associated class libraries needed to provide a Java runtime environment. The Kaffe virtual machine is free software, licensed under the terms of the GNU Public License. Kaffe is a great choice as a base for virtual machine education and/or research, or if you need a virtual machine as an integral component of an open source or free software Java distribution.
License: GNU GPL
This project has the following developers:
New HTML Parser: The long-awaited libxml2 based HTML parser code is live. It needs further work but already handles most markup better than the original parser.
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If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!