JavaFX AnchorPane约束不可见

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;

public class AnchorPaneExample extends Application {

    @Override
    public void start(Stage primaryStage) {
        AnchorPane anchorPane = new AnchorPane();
        
        Button visibleButton = new Button("Visible Button");
        AnchorPane.setTopAnchor(visibleButton, 10.0);
        AnchorPane.setLeftAnchor(visibleButton, 10.0);
        
        Button invisibleButton = new Button("Invisible Button");
        invisibleButton.setVisible(false);
        AnchorPane.setTopAnchor(invisibleButton, 10.0);
        AnchorPane.setLeftAnchor(invisibleButton, 10.0);
        
        anchorPane.getChildren().addAll(visibleButton, invisibleButton);
        
        Scene scene = new Scene(anchorPane, 200, 200);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}