Throw Exception while using withJson method in bulk.IndexOperation

[chamchi00800]

Java API client version

9.1.5

Java version

21

Elasticsearch Version

9.1.5

Problem description

Hi, I noticed this might be an issue that was reported before. I've confirmed that it seems to be reproducible even in the latest version. If this is an unintended error and no one is currently assigned to it, would it be okay if I try to work on it?

Code

final BulkResponse response = client.bulk(br -> br.operations(
                    bo -> bo.index(io -> io.withJson(jsonInputStream).index("test").id("1"))
            ));

Error

Class class co.elastic.clients.elasticsearch.core.bulk.IndexOperation cannot be read from JSON
java.lang.IllegalArgumentException: Class class co.elastic.clients.elasticsearch.core.bulk.IndexOperation cannot be read from JSON
	at co.elastic.clients.util.WithJsonObjectBuilderBase.withJson(WithJsonObjectBuilderBase.java:46)
	at co.elastic.clients.json.WithJson.withJson(WithJson.java:43)