Graph / diagram addons for Vaadin 7+

Hi, is there any smart lib or addon for drawing graphs, vertexes, rectangulars and connections beetween them?

Can You guys recommend anything?

You may have a look at https://vaadin.com/directory#addon/graphtree-for-vaadin

I was looking for something like this https://vaadin.com/directory#addon/graph-explorer

The graph tree addon “handles only one way relationship” but i need n-way relationships.

Any ideas?