KTreeMap is a Java SWT component which reprensents hierarchical structure in a Treemap/heatmap. It is an Eclipse plugin
Check out the Javdoc with UML diagrams here
Also look at the Project Reports menu on the left for project specific items, unit tests, QA etc.
Now... building a SWT Eclipse plugin with Maven turned up to be a bit of a nightmare, primarily because of the totally outdated jars on iBiblio.org. So we decided to tackle this problem and happily hack it.
In order to compile the ktreemap, you need to copy the jar files in the directory eclipse-jars. We have provided a quick (and dirty) copyToRepo.bat to help you. It is probably not putting the jars in the right directory structure, but then there is no standard at the moment...