Hi,
I haven’t heard of an add-on for ArcGIS, but after looking into it a bit, looks like the JavaScript API might be usable with Vaadin. It’s not a simple task especially if you want to include the entire API, but I don’t see why it couldn’t be done. That being said, I personally would start with looking at some of the existing mapping add-ons in the
directory
- there’s at least a lot of community activity around the add-ons for Google Maps, Leaflet and OpenLayers.
Best regards,
Olli