intermittent Object reference issue occurring while consuming continously

Description

We are getting the below exception intermittently

System.NullReferenceException: Object reference not set to an instance of an object. at Confluent.Kafka.ConsumeResult`2.get_Value() at

How to reproduce

1. created two consumer ( running 2 instance ) and subscribed with same topic.
2. Running both consumers
3. consuming kafka messages continuously
4. After sometime both consumer throwing same exception and almost same time

Then i tried with single consumer and got same issue again Checklist

Please provide the following information:

• A complete (i.e. we can run it), minimal program demonstrating the problem. No need to supply a project file.
• Confluent.Kafka nuget version.
• Apache Kafka version.
• Client configuration.
• Operating system.
• Provide logs (with “debug” : “…” as necessary in configuration).
• Provide broker log excerpts.
• Critical issue.

[mhowlett]

furthering this, we’ve depreciated convenience methods on ConsumeResult in v1.4.0 and later, and they’ll be removed in 2.0.

[mhowlett]

@AndrewGumenyuk - yep. the history here is that at one point, the API was such that it wasn’t possible for Message to be null, and this is a hang over from that. The pass-through properties on ConsumeResult just exist as a convenience. This is confusing a lot of people, so I’m becoming more inclined to remove the properties on ConsumeResult that just reference properties in Message as you, and others suggest. However we can’t do this until we version it 2.0 since the change is breaking. The timing of that will depend on other clients too as we’ll want to move all the versions together. The downside is it will impact a lot of people, so there’s a tradeoff here.