Is JavaFX okay? Or maybe even good? What's wrong with it? (Not polished enough, not maintained enough? Not updated fast enough?) RxJava seems pretty okay.
And (the worst) it's not conceptually compatible to the model classes (abstract tree model) that almost every UI framework (including Swing) provides. Instead, tree nodes have to be manually instantiated).
https://docs.oracle.com/javase/8/javafx/api/javafx/scene/con...
> UI bindings require a lot of manual converters instead of doing conversions that p.e. WPF does out-of-the-box (like double to string when using a text box; principle of least surprise).
You can use String.valueOf, but usually don’t want to do that. And how do you want to represent the float? With Scientific notation, Engineering notation, or purely decimal? This is not simple.
> And (the worst) it's not conceptually compatible to the model classes (abstract tree model) that almost every UI framework (including Swing) provides. Instead, tree nodes have to be manually instantiated).
Or you use the FXML bindings for creating them from XML?