Accordion Layout does not work when it has other accordion layouts inside

[paucarre]

Accordion Layout does not work when it has other accordion layouts inside. It is to say, if you want to create an accordion menu with embedded accordions to have a hierarchy, new widgets are no longer shown

The recursive code to generate the accordion is:

public static Widget createMenuFromMenuModel(MenuModel menuModel) {
        ContentPanel panel = new ContentPanel();
        panel.setBodyBorder(false);
        panel.setPixelSize(200, 325);


        Widget widget = getMenuWidgetFromMenuModel(menuModel, null);
        panel.add(widget);


        VerticalPanel verticalPanel = new VerticalPanel();
        verticalPanel.setSpacing(10);
        verticalPanel.add(panel);
        return verticalPanel;


    }


    private static Widget getMenuWidgetFromMenuModel(MenuModel menuModel,
            AccordionLayoutContainer accordionLayoutContainer) {
        AccordionLayoutAppearance appearance = GWT
                .<AccordionLayoutAppearance> create(AccordionLayoutAppearance.class);
        ContentPanel contentPanel = new ContentPanel(appearance);
        contentPanel.setAnimCollapse(false);
        contentPanel.setHeadingText(menuModel.getTitle());
        Widget widgetToReturn = contentPanel;
        if (menuModel.getListOfMenuModels().size() > 0) {
            accordionLayoutContainer = new AccordionLayoutContainer();
            accordionLayoutContainer.setFill(true);
            accordionLayoutContainer.add(contentPanel);
            accordionLayoutContainer.setWidget(contentPanel);
            VerticalPanel verticalPanel = new VerticalPanel();
            verticalPanel.setSpacing(10);
            contentPanel.add(verticalPanel);
            for (MenuModel currentMenuModel : menuModel.getListOfMenuModels()) {
                Widget widget = getMenuWidgetFromMenuModel(currentMenuModel,
                        accordionLayoutContainer);
                verticalPanel.add(widget);
            }
        } else {
            if (menuModel.getListOfOptionModel().size() > 0) {
                VerticalPanel verticalPanel = new VerticalPanel();
                verticalPanel.setSpacing(10);
                contentPanel.add(verticalPanel);
                accordionLayoutContainer.add(contentPanel);
                for (OptionModel currentOptionModel : menuModel
                        .getListOfOptionModel()) {
                    TextButton textButton = new TextButton();
                    textButton.setTitle(currentOptionModel.getTitle());
                    verticalPanel.add(textButton);
                }
            }
        }
        return widgetToReturn;
    }