I am trying to set up the new Elasticsearch Java API Client.
Here is my configuration:

    // Set up elasticsearch cluster hosts
    String[] elasticsearchHosts = elasticsearchEndpoints.split(",");
    HttpHost[] httpHosts = Arrays.stream(elasticsearchHosts)
            .map(HttpHost::create).toArray(HttpHost[]::new);

    // Create the low level client
    final RestClientBuilder restClientbuilder = RestClient.builder(httpHosts);

    // Set elasticsearch user credentials
    final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
    credentialsProvider.setCredentials(AuthScope.ANY,
            new UsernamePasswordCredentials(username, password));

    restClientbuilder.setHttpClientConfigCallback(
            b -> b.setDefaultCredentialsProvider(credentialsProvider));

    RestClient restClient = restClientbuilder.build();

    // Create the transport with a Jackson mapper which maps classes to json
    ElasticsearchTransport transport = new RestClientTransport(restClient,
            new JacksonJsonpMapper());

    return new ElasticsearchClient(transport);

and I have a simple search:

  Query termQuery = TermQuery.of(m -> m
                    .field("myField")
                    .value("myValue"))
            ._toQuery();

    var searchRequest =
            co.elastic.clients.elasticsearch.core.SearchRequest.of(s -> s
                    .index("index-name")
                    .query(termQuery));

    SearchResponse<myDTOClass>
            searchResponse = elasticsearchJavaApiClient.search(searchRequest, myDTOClass.class);

It sends the request successfully but the problem is the response. Here is the error:

co.elastic.clients.transport.TransportException: node: https://aaa.xxx.com:9200/, status: 200, [es/search] Failed to decode response