Shashank Tyagi any progress on reproducing the issue? We plan to release 5.3.1 early next week and, if there is a bug, it would be nice to fix it for this release.

By the way, which version of HV triggers the issue in your application?

Could you check that you don't have 2 different instances of the KafkaProducerFactory class in your packaged application?

Could you share the full code of your KafkaProducerFactory and all the class hierarchy of it - not the whole application, just these classes? You can send it to me at guillaume at hibernate dot org.