Java Roundtrip Engineering

ArgoUML *

This is the open source UML modelling tool to use with JavaRE.

ANTLR *

Without this excellent parser generator, JavaRE would not have been released in such a short time. It can generate parser code for Java, C++ and Sather.

NSUML *

The perfect UML model implementation in Java. The code is auto generated from the UML 1.3 specification. Always up to date.

ALMA *

This project looks very intresting. It can translate between several programming languages and models.

UDE *

UDE is a CASE tool with UML support. I would say that it has pre-Alpha quality, but could become something interesting.

Thorn *

This is a UML modelling tool that seems to have the ambition to be a drawing tool more than a CASE tool. It does not support the UML metamodel. The tool has a high quality feel with few bugs, but have a lot of features left to be implemented until it will be usable.