private Button getExportButton() { Button exportButton = new Button(I18nUtils.getMessages().config_button_export()); exportButton.setIcon(AbstractImagePrototype.create(Icons.INSTANCE.page_save())); exportButton.addListener( Events.OnClick, new Listener<BaseEvent>() { @Override public void handleEvent(BaseEvent be) { String url = GWT.getModuleBaseURL() + "exportconfig"; Window.open(url, "_self", ""); } }); return exportButton; }