Vaadin 10+ Java integration for LeafletJS
The current version is still experimental and lacks most features of the v-leaflet add-on (for older Vaadin versions). The current version is more of a proof of concept and only contains one component to pick a JTS Point from a map with hard coded OpenStreetMap layer. The LeafletPointSelector implements HasValue so it can be bound to JTS Point property with Binder.
With this implementation strategy the component will never work with the latest Vaadin Designer nor with html templates, but it seems like a rather simple approach to get something functional done for plain Java developers.