public static String getTitleI18n(Locale locale, String modelName, String tabName) throws XavaException { String id = null; if (Is.emptyString(tabName)) { id = modelName + ".tab.title"; } else { id = modelName + ".tabs." + tabName + ".title"; } if (Labels.existsExact(id, locale)) { return Labels.get(id, locale); } else { return null; } }