问如何在javafx中嵌入PApplet？

EN

 package testprocessing;
import javafx.application.Application;
import javafx.embed.swing.SwingNode;
import javafx.scene.*;
import javafx.scene.paint.Color;
import javafx.stage.Stage;

import javax.swing.JApplet;
import javax.swing.SwingUtilities;
import java.awt.Dimension;

import java.util.concurrent.*;
import processing.core.*;

public class JavaFxApplet extends Application {
    private PApplet applet = new MyProcessingSketch();
    private Dimension appletSize;

    @Override public void init() throws ExecutionException, InterruptedException {
        applet.init();

        FutureTask<Dimension> sizingTask = new FutureTask<>(() ->
            applet.getRootPane().getPreferredSize()
        );
        SwingUtilities.invokeLater(sizingTask);
        appletSize = sizingTask.get();
    }

    @Override public void start(Stage stage) {
        final SwingNode swingNode = new SwingNode();
        SwingUtilities.invokeLater(() ->
            swingNode.setContent(applet.getRootPane())
        );

        stage.setScene(
            new Scene(
                new Group(swingNode),
                appletSize.getWidth(), appletSize.getHeight(),
                Color.BLACK
            )
        );
        stage.show();
    }

    @Override public void stop() {
        applet.stop();
        applet.destroy();
    }

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