public static String getLocalizedString(String resourceKey) {
		try {
			File file = new File("translations");
			java.net.URL[] url = {file.toURI().toURL()};
			ClassLoader loader = new URLClassLoader(url);
			ResourceBundle resource = ResourceBundle
					.getBundle("lpackage",Locale.getDefault(),loader);
			String localizedString = resource.getString(resourceKey);
			return localizedString;
		} catch (MissingResourceException | MalformedURLException ex) {
			throw new IllegalArgumentException("Unknown key " + resourceKey);
		}
	}