Selection listener is never called

Directory App Layout Add-on
1

Hello.
I’m using Tree component in my application. I need to react on select event. The appropriate listener registered this way:

 tree.addSelectionListener(e -> {
          ///handler code
        });

If selection mode of Tree is set to SINGLE, the listener is called as well. But if selection mode is MULTI, the listener is not called on select event. Is it issue or correct behavior? I need to react to selection event for nice user expirience. How could I get this event for MULTI selection mode?
Tree version 4.1.0
Vaadin version 25.0.0

2

Are you talking about this add-on? tree - Vaadin Add-on Directory
If yes, the selection listener should work also in multi selection mode if it just works in the underlying TreeGrid. I need to verify that.

3

Yes, tree - Vaadin Add-on Directory