JUDE/Community is the free edition with basic features.
It is rich in functionality, offering features, such as editing and printing
UML1.4 diagrams, import/export of Java source code, graphics output, and
auto layout. (A restriction is that the JUDE logo always appears in the header
of printed documents.)

Basic Features
JUDE supports the following basic UML 1.4 diagrams:
- Class (Object, Package, Robustness)
- Usecase
- Sequence
- Collaboration
- Statechart
- Activity
- Component
- Deployment
- Template Generation of Java Source Files
- Import of Java Source Files
- Automatic Generation of Class Diagrams with Model Information

WWW: http://jude.change-vision.com/jude-web/index.html