Exception: There is no way this will ever be thrown. (What all great developers say)

[BenjaBobs]

So I recently ran into this:

Cosmonaut/src/Cosmonaut/Extensions/TaskExtensions.cs

Line 22 in 4ecd03a

throw allTask.Exception ?? throw new Exception("There is no way this will ever be thrown. (What all great developers say)");

I think it was from doing too many tasks in one go, but there's really no way to be sure without logging the exceptions.

[Elfocrash]

What the?
I can't understand how this could happen. Do you have the ApplicationInsights logging enabled?

How can the exception happen but by be null? 😲
Can you reproduce this consistently?

[BenjaBobs]

I did have Application Insights enabled but there is no information other than the exception message.
It was a very long running request though, >80k upserts, so I think it was an App Service execution time limitation that caused it, but I'm not sure.

Maybe the try-catch should collect the exception messages and put them into the aggregate exception? 😄

[Elfocrash]

The thing is that you wouldn't see any exception because for this to be caused the Aggregate Exception was null. I am so confused.