public static String unescapeURLQuery(String ce)
    {
        try {
            ce = unescapeString(ce);
        } catch (Exception e) {
            ce = null;
        }
        return ce;
    }
public static String unescapeURLQuery(String ce)
    {
        try {
            ce = unescapeString(ce);
        } catch (Exception e) {
            ce = null;
        }
        return ce;
    }
public static String unescapeURLQuery ( String ce ) { try { ce = unescapeString ( ce ) ; } catch ( Exception e ) { ce = null ; } return ce ; }
Define the DEFINITIVE URL constraint expression unescape function.

@param ce The expression to unescape.
@return The unescaped expression.
Define the DEFINITIVE URL constraint expression unescape function .