[BUG] Java High-Level Rest Client doc issue

What is the bug?

Someone submitted an issue in the doc repo. Can you please let us know what needs to be updated? Thanks.

As per the Legacy clients table, ElasticSearch Java High-Level Rest Client version 7.13.4 should work with OpenSearch. I understand that this is a best effort, but even a simple request of indexing a document fails as of OpenSearch 1.3. In OpenSearch 1.3 the response body for the Index Document API changed to no longer include the _type field which breaks compatibility with this client.

See https://github.com/opensearch-project/documentation-website/issues/4419

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What is the expected behavior?

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What is your host/environment?

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Do you have any additional context?

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Start by reviewing the Legacy clients table and the referenced documentation issue 4419, then examine the OpenSearch 1.3 Index Document API response change and its effect on Elasticsearch Java High-Level REST Client 7.13.4. Done means the required documentation or compatibility guidance is identified and updated, with the client behavior clearly addressed.