Possible null reference assignment.

Non-nullable field 'tenant' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field 'openIdConfiguration' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

'HttpRequestMessage.Properties' is obsolete: 'HttpRequestMessage.Properties has been deprecated. Use Options instead.'

Dereference of a possibly null reference.

Possible null reference argument for parameter 'baseUri' in 'Uri.Uri(Uri baseUri, string? relativeUri)'.

Possible null reference argument for parameter 'appName' in 'AuthenticationProvider.AuthenticationProvider(string appName, string appId, string appSecret, IGraphLogger logger)'.

Possible null reference argument for parameter 'appId' in 'AuthenticationProvider.AuthenticationProvider(string appName, string appId, string appSecret, IGraphLogger logger)'.

Possible null reference argument for parameter 'appSecret' in 'AuthenticationProvider.AuthenticationProvider(string appName, string appId, string appSecret, IGraphLogger logger)'.