@Nonnull
    public static Map<String, String> toMap(Properties properties) {
        requireNonNull(properties, "properties");
        HashMap<String, String> map = new HashMap<>();
        for (String key : properties.stringPropertyNames()) {
            map.put(key, properties.getProperty(key));
        }
        return map;
    }

    @Nonnull
    public static Properties toProperties(Map<String, String> properties) {