private String escape(String value)
    {
        StringBuilder result = new StringBuilder();
        for (int i = 0; i < value.length(); ++i)
        {
            char c = value.charAt(i);
            if (c < reservedChars.length && reservedChars[c] == c)
            {
                result.append(ESCAPE_PREFIX);
                int code = c & 0xFF;
                if (code < 16) result.append("0");
                result.append(Integer.toHexString(code));
            }
            else
            {
                result.append(c);
            }
        }
        return result.toString();
    }
private String escape ( String value ) { StringBuilder result = new StringBuilder ( ) ; for ( int i = 0 ; i < value . length ( ) ; ++ i ) { char c = value . charAt ( i ) ; if ( c < reservedChars . length && reservedChars [ c ] == c ) { result . append ( ESCAPE_PREFIX ) ; int code = c & 0xFF ; if ( code < 16 ) result . append ( "0" ) ; result . append ( Integer . toHexString ( code ) ) ; } else { result . append ( c ) ; } } return result . toString ( ) ; }
Escapes the scope string following RFC 2608, 6.4.1

@param value The scope string to escape
@return The escaped scope string
@see #unescape(String)