I'm using OpenFX 11, OpenJDK 11 and controlsfx 8.40.15  library
Getting   Caused by: java.lang.NoSuchMethodError: 'java.util.Iterator javafx.stage.Window.impl_getWindows()' while execute following code.  
    Notifications notifications = Notifications.create().title("Error").text("All fields are required.")
            .position(Pos.BOTTOM_CENTER);
    notifications.showConfirm(); //at this line geting error.  
Maybe it is because of incompatible or incomplete library so is there have any solution?