Possible null reference return.

Possible null reference argument for parameter 'chain' in 'void MessageHandler<T>.ConfigureChain(HandlerChain chain)'.

Non-nullable property 'ServiceName' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Dereference of a possibly null reference.

Cannot convert null literal to non-nullable reference type.

Non-nullable field '_envelope' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Non-nullable property 'ArgumentName' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Nullability of reference types in return type of 'IHandlerPipeline? DurableReceiver.Pipeline.get' doesn't match implicitly implemented member 'IHandlerPipeline IReceiver.Pipeline.get' (possibly because of nullability attributes).

Nullability of reference types in return type of 'IHandlerPipeline? BufferedReceiver.Pipeline.get' doesn't match implicitly implemented member 'IHandlerPipeline IReceiver.Pipeline.get' (possibly because of nullability attributes).