Add RSyntaxTextArea to JavaFX Tab

    private Tab createNewTab()
    {
        Tab tab = new Tab();

        VBox vBox = new VBox();

        RSyntaxTextArea textArea = new RSyntaxTextArea(20, 30);
        textArea.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_JAVA);
        textArea.setCodeFoldingEnabled(true);

        RTextScrollPane scrollPane = new RTextScrollPane(textArea);

        SwingNode swingNode = new SwingNode();
        swingNode.setContent(scrollPane);

        vBox.getChildren().add(swingNode);

        tab.setContent(vBox);

        return tab;
    }