import javafx.application.Application;
import javafx.scene.SceneBuilder;
import javafx.scene.control.ButtonBuilder;
import javafx.scene.control.LabelBuilder;
import javafx.scene.control.ListViewBuilder;
import javafx.scene.layout.PaneBuilder;
import javafx.scene.layout.StackPaneBuilder;
import javafx.scene.paint.Color;
import javafx.stage.Popup;
import javafx.stage.Stage;
import javafx.stage.StageBuilder;

/**
 *
 * @author Alexander Kouznetsov
 */
public class Bug extends Application {

    public static void main(String[] args) {
        launch(args);
    }
    
    @Override
    public void start(Stage stage) throws Exception {
        
        StageBuilder.create()
                .scene(
                    SceneBuilder.create()
                        .width(500)
                        .height(500)
                        .root(StackPaneBuilder.create()
                            .build()
                        )
                        .build())
                .applyTo(stage);
        stage.show();
        
        Popup popup = new Popup() {
            {
                getContent().setAll(StackPaneBuilder.create()
                        .children(
                            ListViewBuilder.create()
                                .build(),
                            PaneBuilder.create()
                                .prefWidth(Double.MAX_VALUE) // Comment out these two lines
                                .prefHeight(Double.MAX_VALUE) // to fix the app
                                .build()
                        )
                        .build());                
            }
        };
        
        popup.show(stage);
    }

}