http://nsuml.sourceforge.net/
Novosoft Metadata Framework and UML Library
Novosoft metadata framework is based on JMI specification and generated classes that are required by JMI specification and also provides addictioanal services like event notification, undo/redo support, XMI suport. NSMDF is local in-memory implementation.

We also provide code generated from UML 1.4 metamodel. Which could be used for constructing applciations based on UML 1.4.

NSMDF project is based upon NSUML 0.4.*, which is sill provided as separate download. NSUML 0.4.* is being phased out.