try ( SmbResource f = createTestFile() ) {
            try {
                long time = System.currentTimeMillis() - 1000 * 60 * 60 * 12;
                f.setLastModified(time);

                if ( ( getContext().getConfig().getCapabilities() & SmbConstants.CAP_NT_SMBS ) == 0 ) {
                    // only have second precision

            return null;
        }
        if ( this.smb2 ) {
            if ( key != -1 ) {
                return null;
            }
            int cmd = Encdec.dec_uint16le(this.sbuf, 4 + 12) & 0xFFFF;
            if ( cmd == 0x12 ) {
                return new Smb2OplockBreakNotification(getContext().getConfig());
            }
        }
        else {
            if ( key != 0xFFFF ) {