在JavaFX面板中显示GraphStream图形遇线程异常及显示问题求助

我需要在JavaFX的StackPane（最小复现示例使用AnchorPane）中显示GraphStream图形，但运行后出现两个问题：

• 图形显示极小且无交互
• 抛出线程异常

初始代码 #

void cargaGrafico() {
    SingleGraph graph = aula.getSociogramas().get(currentSocio).getRelaPos().getGraph();
    FxViewer v = new FxViewer(graph,FxViewer.ThreadingModel.GRAPH_IN_GUI_THREAD);
    v.enableAutoLayout();
    FxViewPanel panel = (FxViewPanel)v.addDefaultView(false, new FxGraphRenderer());
    spGraficos.getChildren().add(panel);
}

其中spGraficos是JavaFX StackPane组件。

抛出的异常 #

Exception in thread "Thread-2" java.lang.IllegalStateException: Not on FX application thread; currentThread = Thread-2
    at javafx.graphics@22-ea/com.sun.javafx.tk.Toolkit.checkFxUserThread(Toolkit.java:294)
    at javafx.graphics@22-ea/com.sun.javafx.tk.quantum.QuantumToolkit.checkFxUserThread(QuantumToolkit.java:475)
    at javafx.graphics@22-ea/javafx.animation.Animation.play(Animation.java:990)
    at gs.ui.javafx@2.0/org.graphstream.ui.fx_viewer.FxViewer.lambda$init$1(FxViewer.java:220)
    at java.base/java.lang.Thread.run(Thread.java:1570)

我尝试查找GraphStream邮件列表但已停止维护，下面是最小可复现示例：在IntelliJ IDEA中新建JavaFX项目，仅包含按钮和AnchorPane，点击按钮时填充GraphStream图形并添加到AnchorPane，结果同样出现上述问题。

最小复现示例代码 #

HelloApplication.java #

package com.probags.probags;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.stage.Stage;

import java.io.IOException;

public class HelloApplication extends Application {
    @Override
    public void start(Stage stage) throws IOException {
        FXMLLoader fxmlLoader = new FXMLLoader(HelloApplication.class.getResource("hello-view.fxml"));
        Scene scene = new Scene(fxmlLoader.load(), 820, 950);
        stage.setTitle("Hello!");
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        System.setProperty("org.graphstream.ui", "javafx");
        launch();
    }
}

HelloController.java #

package com.probags.probags;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.Label;
import javafx.scene.layout.AnchorPane;
import org.graphstream.graph.Graph;
import org.graphstream.graph.implementations.SingleGraph;
import org.graphstream.ui.fx_viewer.FxViewPanel;
import org.graphstream.ui.fx_viewer.FxViewer;
import org.graphstream.ui.javafx.FxGraphRenderer;

public class HelloController {

    @FXML
    private AnchorPane apGraph;
    @FXML
    private Label welcomeText;
    private Graph graph = new SingleGraph("Test");
    @FXML
    void onHelloButtonClick(ActionEvent event) {
        populateGraph();
        FxViewer v = new FxViewer(graph,FxViewer.ThreadingModel.GRAPH_IN_GUI_THREAD);
        v.enableAutoLayout();
        FxViewPanel panel = (FxViewPanel)v.addDefaultView(false, new FxGraphRenderer());
        apGraph.getChildren().add(panel);
    }

    void populateGraph() {
        graph.addNode("A" );
        graph.addNode("B" );
        graph.addNode("C" );
        graph.addEdge("AB", "A", "B");
        graph.addEdge("BC", "B", "C");
        graph.addEdge("CA", "C", "A");
    }

}

module-info.java #

module com.probags.probags {
    requires javafx.controls;
    requires javafx.fxml;
    requires gs.core;
    requires gs.ui.javafx;


    opens com.probags.probags to javafx.fxml;
    exports com.probags.probags;
}

我使用Maven引入的gs.core和gs.ui.javafx版本为2.0，求解决上述问题。

内容的提问来源于stack exchange，提问作者Serinus Serinus