this.openFlags = openFlags;
        this.access = (openFlags >>> 16) & 0xFFFF;
        if( append ) {
            try {
                fp = file.length();
            } catch( SmbAuthException sae ) {
                throw sae;
            } catch( SmbException se ) {
                fp = 0L;
            }
        }
        if( file instanceof SmbNamedPipe && file.unc.startsWith( "\\pipe\\" )) {

                    Assume.assumeTrue("Not SMB2", th.isSMB2());
                }
                throw e;
            }
            catch ( SmbAuthException e )  {
                // guest share not accessible
            }
            catch ( SmbException e) {
                if ("Cannot rename between different trees".equals(e.getMessage())) {

        try {
            return this.gssContext.initSecContext(token, off, len);
        }
        catch ( GSSException e ) {
            throw new SmbAuthException("GSSAPI mechanism failed", e);
        }
    }


    Key searchSessionKey ( Subject subject ) throws GSSException {
        MIEName src = new MIEName(this.gssContext.getSrcName().export());

        case NtStatus.NT_STATUS_ACCOUNT_DISABLED:
        case NtStatus.NT_STATUS_ACCOUNT_LOCKED_OUT:
        case NtStatus.NT_STATUS_TRUSTED_DOMAIN_FAILURE:
            throw new SmbAuthException(resp.getErrorCode());
        case 0xC00000BB: // NT_STATUS_NOT_SUPPORTED
            throw new SmbUnsupportedOperationException();
        case NtStatus.NT_STATUS_PATH_NOT_COVERED:

            case NtStatus.NT_STATUS_ACCOUNT_DISABLED:
            case NtStatus.NT_STATUS_ACCOUNT_LOCKED_OUT:
            case NtStatus.NT_STATUS_TRUSTED_DOMAIN_FAILURE:
                throw new SmbAuthException( resp.errorCode );
            case NtStatus.NT_STATUS_PATH_NOT_COVERED:
                if( req.auth == null ) {
                    throw new SmbException( resp.errorCode, null );
                }

        }

        try {
            if( log.level >= 3 )
                log.println( "doConnect: " + addr );

            tree.treeConnect(null, null);
        } catch (SmbAuthException sae) {
            NtlmPasswordAuthentication a;
            SmbSession ssn;

            if (share == null) { // IPC$ - try "anonymous" credentials