Produce v3 API returns BAD REQUEST on 7.3.0

[neuromantik33]

When upgrading from 7.2.2 to 7.3.0, when trying to produce avro events using the produce v3 API, I get the following error in the json body:

{
  "error_code": 400,
  "message": "Cannot construct instance of `io.confluent.kafkarest.response.JsonStream` (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)"
}

My content-type is application/json and transfer-encoding chunked.

Falling back to 7.2.2 for now

[PaskeS]

Can confirm seeing this as well producing JSON events on 7.3.0

[PaskeS]

Just for info @neuromantik33 if you are still having the issue. We found that there was a default charset being applied from my http client (C#). Once this was removed it just started working. Why it results in the error above, I have no idea

[zhaojunyuan]

I face the same issue, who can help with it, thanks!
my data like this: {"partition_id":0,"value":{"type":"JSON","data":{"id":11,"name":"zzs","age":23}},"timestamp":"Jun 7, 2023 5:04:37 PM"}
response is: {"error_code":400,"message":"Cannot construct instance of JsonStream (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)"}