public static String urlDecode( String string )
    {
        return URLDecoder.decode( string, StandardCharsets.UTF_8);
    }
Decodes a {@code application/x-www-form-urlencoded} string using the UTF-8 encoding scheme. The encoding is used
to determine what characters are represented by any consecutive sequences of the form "<i>{@code %xy}</i>".
@param string the String to encode
@return the encoded string
@see URLDecoder
xmppserver/src/main/java/org/jivesoftware/admin/JSTLFunctions.java