UTF-8のプロパティファイルを読むための snipet

gistfile1.java

        ResourceBundle.Control control = new ResourceBundle.Control() {
            @Override
            public ResourceBundle newBundle(String baseName, Locale locale, String format,
                    ClassLoader loader, boolean reload)
                    throws IllegalAccessException, InstantiationException, IOException {
                String bundleName = toBundleName(baseName, locale);
                ResourceBundle bundle = null;
                if (format.equals("java.properties")) {
                    final String resourceName = toResourceName(bundleName, "properties");
                    final ClassLoader classLoader = loader;
                    final boolean reloadFlag = reload;
                    InputStream stream = null;
                    if (reloadFlag) {
                        URL url = classLoader.getResource(resourceName);
                        if (url != null) {
                            URLConnection connection = url.openConnection();
                            if (connection != null) {
                                connection.setUseCaches(false);
                                stream = connection.getInputStream();
                            }
                        }
                    } else {
                        stream = classLoader.getResourceAsStream(resourceName);
                    }
                    if (stream != null) {
                        try {
                            bundle = new PropertyResourceBundle(new InputStreamReader(stream, "UTF-8"));
                        } finally {
                            stream.close();
                        }
                    }
                } else {
                    throw new IllegalArgumentException("unknown format: " + format);
                }
                return bundle;
            }
        };

        ResourceBundle resourceBundle = ResourceBundle.getBundle(LOCALE_BUNDLE_NAME,
                                                                 resourceBundleLocale,
                                                                 Localization.class.getClassLoader(),
                                                                 control);