JQualityVis is a software quality analysis framework written in Java that allows engineers to visualise the results of static software metrics after they are applied on parsed source code.
Take a look at this neat intro page, the help file or the generated documentation.
The following libraries must be available in your classpath to build and run it:
jgraphx.jar
forms-1.3.0.jar
prefuse.jar
openchart2-1.4.3.jar
tools.jar (Java Compiler API)
xpp3_min-1.1.4c.jar
xstream-1.3.1.jar