JavaFXのタブ上にawtのボタンを表示する

先日tetatailで同じような(質問)をしたのですが、
その先で躓いてしまったので再度投稿させていただきます。

JavaFX上にSwingNodeを利用してSwingもしくはawtの部品を表示しようとした場合、
SwingのJButtonは表示されるのですが、
awtのButtonの場合は表示されず、実行時に以下の例外が発生しボタンが表示されません。

===例外内容=================================================
Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Width (0) and height (0) cannot be <= 0
at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1016)
at java.awt.GraphicsConfiguration.createCompatibleImage(GraphicsConfiguration.java:186)
at sun.awt.image.SunVolatileImage.getBackupImage(SunVolatileImage.java:236)
at sun.awt.image.VolatileSurfaceManager.getBackupSurface(VolatileSurfaceManager.java:263)
at sun.awt.image.VolatileSurfaceManager.initialize(VolatileSurfaceManager.java:126)
at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:88)
at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:117)
at java.awt.GraphicsConfiguration.createCompatibleVolatileImage(GraphicsConfiguration.java:307)
at java.awt.GraphicsConfiguration.createCompatibleVolatileImage(GraphicsConfiguration.java:241)
at sun.awt.windows.TranslucentWindowPainter$VIWindowPainter.getBackBuffer(TranslucentWindowPainter.java:272)
at sun.awt.windows.WWindowPeer.getTranslucentGraphics(WWindowPeer.java:606)
at sun.awt.windows.WComponentPeer.getGraphics(WComponentPeer.java:562)
at java.awt.Component.getGraphics(Component.java:3035)
at sun.awt.RepaintArea.paint(RepaintArea.java:227)
at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:347)
at java.awt.Component.dispatchEventImpl(Component.java:4959)
at java.awt.Component.dispatchEvent(Component.java:4705)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746)
at java.awt.EventQueue.access$400(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:697)
at java.awt.EventQueue$3.run(EventQueue.java:691)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:719)
at java.awt.EventQueue$4.run(EventQueue.java:717)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:716)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
=========================================================

ソースは以下のようになっております
１：Javaソース
`
public class JavaFXonAWTView extends Application{

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

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

    //画面の読み込み
    Pane root = new Pane();
    FXMLLoader loader = new FXMLLoader(getClass().getResource("/view.fxml"));
    root = loader.load();

    // awtのボタンを設置
    SwingNode sNode = new SwingNode();
    sNode.setLayoutX(10.0);
    sNode.setLayoutY(50.0);
    JPanel jPanel = new JPanel();
    jPanel.add(new Button("awtボタン"));
    sNode.setContent(jPanel);

    // Scene生成
    Scene scene = new Scene(root, javafx.scene.paint.Color.WHITE);

    // TabPane取得
    TabPane tabPane = (TabPane)root.lookup("#tabPane");
    // Tabの配列取得(Tabはlookupで取れない)
    ObservableList<Tab> tabList = tabPane.getTabs();
    // 対象のTabの取得
    Region tab = null;
    for (Tab tabTmp : tabList) {
        if ("awtの部品表示".equals(tabTmp.getText())) {
            tab = (Region)tabTmp.getContent();
            break;
        }
    }
    // CJSpreadを乗せるPaneの取得
    Pane pane = (Pane)tab.lookup("#pane2");
    pane.getChildren().add(sNode);

    stage.setScene(scene);
    stage.show();
}

２：fxmlファイル(SceneBuilderで生成したものです)

<?xml version="1.0" encoding="UTF-8"?> <?import javafx.scene.text.*?> <?import javafx.scene.control.*?> <?import java.lang.*?> <?import javafx.scene.layout.*?> <Pane fx:id="pane" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="360.0" prefWidth="640.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1"> <children> <TabPane fx:id="tabPane" prefHeight="360.0" prefWidth="640.0" tabClosingPolicy="UNAVAILABLE"> <tabs> <Tab fx:id="tab1" text="awtの部品表示"> <content> <Pane fx:id="pane2" prefHeight="200.0" prefWidth="200.0"> <children> <Label fx:id="label1" layoutX="10.0" layoutY="10.0" maxHeight="30.0" maxWidth="300.0" minHeight="30.0" minWidth="300.0" prefHeight="30.0" prefWidth="300.0" text="JavaFXの上にawt部品を表示します"> <font> <Font name="Meiryo" size="16.0" /> </font> </Label> </children> </Pane> </content> </Tab> <Tab fx:id="tab2" text="その他" /> </tabs> </TabPane> </children> </Pane> ` ３：画面イメージです。タブ内にawtのボタンが表示される想定です。 ![イメージ説明][WIDTH:600](c9b69706a50081acfd5db86c![イメージ説明][WIDTH:600](64f94dcd43cf0cbe6592ef4fb7dc1661.gif)

ネットで原因を調べていたのですが結局わかりませんでした。。
お分かりになられる方がいましたら、ご教授いただければと思います。
よろしくお願い致します。