if (!this.getConfig().isAllowGuestFallback() && response.isLoggedInAsGuest()
                        && (!this.credentials.isGuest() && !this.credentials.isAnonymous())) {
                    throw new SmbAuthException(NtStatus.NT_STATUS_LOGON_FAILURE);
                }
                if (!this.credentials.isAnonymous() && response.isLoggedInAsGuest()) {
                    anonymous = true;
                }