When the Ensemble MouseEventsSample sample is saved (via the "Save NetBeans Project.." button for the sample in Ensemble), the resulting standalone application does not compile because of:

cannot find symbol
symbol : method setOnScroll(<anonymous javafx.event.EventHandler<javafx.scene.input.ScrollEvent>>)
location: class MouseEventsSample
        this.setOnScroll(new EventHandler<ScrollEvent>() {
1 error