Generating graphs in Java

Here I was mentioning some products.

Generating directly the GraphML XML in Java is a pain. Too awkward.


Here an example of how to generate a basic graph in Java using yFiles of yWorks.
It looks really professional and impressive, but the licence is very expensive.

http://en.wikipedia.org/wiki/YEd

http://en.wikipedia.org/wiki/GraphML

Other interesting products:

http://www.jgrapht.org/

http://www.graphviz.org/Gallery.php
http://www2.research.att.com/~john/Grappa/


As by comments, Cytoscape seems also very professionally done.