如何在JFrame中重新打开PieChart？

Question

当我在PieChart中按PrimaryStage时，我想在JButton中重新开启JFrame但在PrimaryStage的所有场景都关闭时无效。

每当我按下按钮时，你能帮助我在初级阶段重新启动饼图吗？

...

    btnNewButton_1 = new JButton("check_1");
    btnNewButton_1.setBounds(14, 146, 180, 44);
    btnNewButton_1.addActionListener(this);
    getContentPane().add(btnNewButton_1);

    button_1 = new JButton("check_2");
    button_1.setBounds(14, 202, 180, 44);
    button_1.addActionListener(this);
    getContentPane().add(button_1);

...
@Override

public void actionPerformed(ActionEvent e) {
...
else if (e.getSource() == btnNewButton_1) {

        new JFXPanel();

        Platform.runLater(new Runnable() {
            @Override
            public void run() {
                try {
                    new AverageGender().start(new Stage());
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }
...
private class AverageGender extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception {

        primaryStage.setTitle("check_1");
        Group root = new Group();

        ObservableList<PieChart.Data> pieChartData = FXCollections
                .observableArrayList(new PieChart.Data("Male", 20), new PieChart.Data("Female", 60));

        final PieChart pieChart = new PieChart(pieChartData);
        pieChart.setTitle("check_1");
        root.getChildren().add(pieChart);

        primaryStage.setScene(new Scene(root, 500, 400));

        primaryStage.setResizable(true);
        primaryStage.show();
    }
}