Elasticsearch 8 Client is giving error The following method did not exist: 'org.elasticsearch.client.RequestOptions$Builder org.elasticsearch.client.RequestOptions$Builder.removeHeader(java.lang.String)'

[suresh_chaudhari]

Elasticsearch 8 is expecting some class RequestOptions which is present in elasticsearch-rest-client-7.6.2.jar.
How I can resolve this error done exactly in a way mentioned in elastic8 docs

@Bean
public ElasticsearchClient getElasticSearchClient(){
   RestClient restClient = RestClient.builder(
           new HttpHost("", 9200)).build();

// Create the transport with a Jackson mapper
   ElasticsearchTransport transport = new RestClientTransport(
           restClient, new JacksonJsonpMapper());

// And create the API client
   ElasticsearchClient client = new ElasticsearchClient(transport);
   
   return client;
}

POM.xml

<jackson.version>2.11.3</jackson.version>

   </properties>
   <dependencies>
       <dependency>
           <groupId>co.elastic.clients</groupId>
           <artifactId>elasticsearch-java</artifactId>
           <version>8.6.2</version>
       </dependency>
       <dependency>
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-core</artifactId>
           <version>${jackson.version}</version>
       </dependency>
       <dependency>
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-databind</artifactId>
           <version>${jackson.version}</version>
       </dependency>
       <dependency>
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-annotations</artifactId>
           <version>${jackson.version}</version>
       </dependency>
<!--        <dependency>-->
<!--            <groupId>com.fasterxml.jackson.core</groupId>-->
<!--            <artifactId>jackson-databind</artifactId>-->
<!--            <version>2.12.3</version>-->
<!--        </dependency>-->
       <dependency>
           <groupId>jakarta.json</groupId>
           <artifactId>jakarta.json-api</artifactId>
           <version>2.0.1</version>
       </dependency>

--------------------
Error it gives

An attempt was made to call a method that does not exist. The attempt was made from the following location:

   co.elastic.clients.transport.rest_client.RestClientOptions.addBuiltinHeaders(RestClientOptions.java:170)

The following method did not exist:

   'org.elasticsearch.client.RequestOptions$Builder org.elasticsearch.client.RequestOptions$Builder.removeHeader(java.lang.String)'

The method's class, org.elasticsearch.client.RequestOptions$Builder, is available from the following locations:

   jar:file:/Users/sureshc1/.m2/repository/org/elasticsearch/client/elasticsearch-rest-client/7.6.2/elasticsearch-rest-client-7.6.2.jar!/org/elasticsearch/client/RequestOptions$Builder.class


-------------
MY analysis
the Class elastic 8 uses RestClient is present in elastic 7 when I search in documentation in elastic8 it is not present.
RequestOPtions is also present in elastic 7 only it is not present in 8 
kindly help here

[dadoonet (David Pilato)]

That's not the same client. The 7.x is the old RestHighLevelClient. The 8.x is a new one which basically does not need that class.