switch ( resp.getErrorCode() ) {
        case NtStatus.NT_STATUS_OK:
            cont = true;
            break;
        case NtStatus.NT_STATUS_ACCESS_DENIED:
        case NtStatus.NT_STATUS_WRONG_PASSWORD:
        case NtStatus.NT_STATUS_LOGON_FAILURE:
        case NtStatus.NT_STATUS_ACCOUNT_RESTRICTION:
        case NtStatus.NT_STATUS_INVALID_LOGON_HOURS:
        case NtStatus.NT_STATUS_INVALID_WORKSTATION:

        catch ( SmbException se ) {
            log.trace("exists:", se);
            switch ( se.getNtStatus() ) {
            case NtStatus.NT_STATUS_NO_SUCH_FILE:
            case NtStatus.NT_STATUS_OBJECT_NAME_INVALID:
            case NtStatus.NT_STATUS_OBJECT_NAME_NOT_FOUND:
            case NtStatus.NT_STATUS_OBJECT_PATH_NOT_FOUND:
                break;
            default:
                throw se;
            }

        final SmbComNegotiateResponse negoResp = (SmbComNegotiateResponse) trans.getNegotiateResponse();
        boolean anonymous = this.credentials.isAnonymous();
        do {
            switch ( state ) {
            case 10: /* NTLM */

                if ( trans.hasCapability(SmbConstants.CAP_EXTENDED_SECURITY) ) {
                    log.debug("Extended security negotiated");
                    state = 20; /* NTLMSSP */