AWS permissions issues hiddden in csharp logs

[lyricnz]

Describe the bug
Was just working with @sushantmimani on #260 and ran into an incidental issue. In setting up the test code, a permission was missed, but Asherah only emitted a null object reference, nothing about the cause.

Object reference not set to an instance of an object.
   at GoDaddy.Asherah.AppEncryption.Persistence.DynamoDbMetastoreImpl.LoadLatest(String keyId)
   at GoDaddy.Asherah.AppEncryption.Envelope.EnvelopeEncryptionJsonImpl.LoadLatestKeyRecord(String keyId)

To Reproduce
Remove permission to AWS DynamoDB in csharp

Expected behavior
Clear message or rethrow of AWS exception.

Screenshots
Sushant Mimani 2 hours ago

i can see access issue logs in cloudwatch when i remove DynamoDB perms from my role
Also, from what i can see, the logging varies slightly for Java and C#. The above trace was from the Java SDK but you’re right, the C# one seems to gobble up those permission issue logs.

Additional context
As discussed in Slack #asherah