# Create new co.elastic.clients.elasticsearch.ElasticsearchClient from RestClientBuilder in Java with elastic version 8.1.0

**URL:** <https://discuss.elastic.co/t/create-new-co-elastic-clients-elasticsearch-elasticsearchclient-from-restclientbuilder-in-java-with-elastic-version-8-1-0/300005>\
**Category:** Elasticsearch\
**Created:** [March 18, 2022, 6:25am UTC](https://discuss.elastic.co/t/create-new-co-elastic-clients-elasticsearch-elasticsearchclient-from-restclientbuilder-in-java-with-elastic-version-8-1-0/300005 "2022-03-18T06:25:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Raushan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/raushan/32/102180_2.png) [@Raushan](https://discuss.elastic.co/u/Raushan)\
**Post date:** [March 18, 2022, 6:25am UTC](https://discuss.elastic.co/t/create-new-co-elastic-clients-elasticsearch-elasticsearchclient-from-restclientbuilder-in-java-with-elastic-version-8-1-0/300005/1 "2022-03-18T06:25:27Z")

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Hi, I'm migrating from HLRC to [Elasticsearch Java API Client [8.0]] with Java.  
Unable to create instance of ElasticsearchClient.

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/1/9/199c5e6e6fb61a4f373dee0e1e726b6f05f1892a.png)

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [March 18, 2022, 6:52am UTC](https://discuss.elastic.co/t/create-new-co-elastic-clients-elasticsearch-elasticsearchclient-from-restclientbuilder-in-java-with-elastic-version-8-1-0/300005/2 "2022-03-18T06:52:07Z")

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The documentation tells you how to build the client. Read [Connecting | Elasticsearch Java API Client [7.17] | Elastic](https://www.elastic.co/guide/en/elasticsearch/client/java-api-client/7.17/connecting.html)

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 15, 2022, 6:52am UTC](https://discuss.elastic.co/t/create-new-co-elastic-clients-elasticsearch-elasticsearchclient-from-restclientbuilder-in-java-with-elastic-version-8-1-0/300005/3 "2022-04-15T06:52:40Z")

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