Other things I added in a local version for Vaadin 21 to make it work: * Im

Other things I added in a local version for Vaadin 21 to make it work:

  • Implementation of GenericDataView, ListDataView
  • Labels for left and right list
  • Calling sortDestinationList when double-clicking on a checkboxItem (before updateButtons())
    If your interested in, I could provide a local version to you after my holiday in the next week.

Sönke Reimer:
Implementation of GenericDataView, ListDataView

Good point. I made version 2.0.0 against Vaadin 21, which adds DataView API support.