Multiple window problems

[z357904947]

When multiple windows are opened, the listen event in the previous window is invalid.

[XHXJ]

I have the same problem.

launch(Application.class, MainStageView.class, args);
Main.showView(ListStageView.class, Modality.NONE);
Stage stage = GUIState.getStage();
stage.widthProperty().addListener((observable, oldValue, newValue) -> System.out.println(newValue));

How to get the monitor of the ListStageView after it displays?

[balazsvero]

This got not answered for a long time. I ran into similar issues while trying to create my own integration and finally realized that since Spring beans are singletons by default, you must specify them as scope = prototype to create a new instance of the controller every time a component is being created.
This was not considered in any of the springboot - javafx integrations I had evaluated.