*/
    static long mapInformationLevel ( int il ) {
        switch ( il ) {
        case FileInformation.FILE_BASIC_INFO:
            return 0x0101;
        case FileInformation.FILE_STANDARD_INFO:
            return 0x0102;
        case FileInformation.FILE_ENDOFFILE_INFO:
            return 0x0104;
        }
        throw new IllegalArgumentException("Unsupported information level " + il);
    }


    @Override