# Error : java.lang.NoClassDefFoundError: org/elasticsearch/client/sniff/NodesSniffer

**URL:** https://discuss.elastic.co/t/error-java-lang-noclassdeffounderror-org-elasticsearch-client-sniff-nodessniffer/300448
**Category:** Elasticsearch
**Created:** [March 23, 2022, 11:39am UTC](https://discuss.elastic.co/t/error-java-lang-noclassdeffounderror-org-elasticsearch-client-sniff-nodessniffer/300448 "2022-03-23T11:39:42Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Prashant\_Kamble](https://avatars.discourse-cdn.com/v4/letter/p/df705f/32.png) [@Prashant\_Kamble](https://discuss.elastic.co/u/Prashant_Kamble)
#### Post date: [March 23, 2022, 11:39am UTC](https://discuss.elastic.co/t/error-java-lang-noclassdeffounderror-org-elasticsearch-client-sniff-nodessniffer/300448/1 "2022-03-23T11:39:42Z")

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We are getting this error` java.lang.NoClassDefFoundError: org/elasticsearch/client/sniff/NodesSniffer` on server.

Application is working fine on local without any exception.

We are using java 11 + Hibernate Search 6 + Elasticsearch 7.10.2

Is this dependency causing issue on server??

` compile 'org.elasticsearch.client:elasticsearch-rest-client-sniffer:5.6.16'`

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### Author: ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)
#### Post date: [March 23, 2022, 1:10pm UTC](https://discuss.elastic.co/t/error-java-lang-noclassdeffounderror-org-elasticsearch-client-sniff-nodessniffer/300448/2 "2022-03-23T13:10:05Z")

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are you using a different dependency version for the rest client? Can you show the client you are using?

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### Author: ![Prashant\_Kamble](https://avatars.discourse-cdn.com/v4/letter/p/df705f/32.png) [@Prashant\_Kamble](https://discuss.elastic.co/u/Prashant_Kamble)
#### Post date: [March 24, 2022, 7:40am UTC](https://discuss.elastic.co/t/error-java-lang-noclassdeffounderror-org-elasticsearch-client-sniff-nodessniffer/300448/3 "2022-03-24T07:40:27Z")

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> [@Prashant\_Kamble](#):
>
> org.elasticsearch.client:elasticsearch-rest-client-sniffer:5.6.16

I have just updated to `org.elasticsearch.client:elasticsearch-rest-client-sniffer:7.10.2` and it got resolved. Thanks

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 21, 2022, 7:40am UTC](https://discuss.elastic.co/t/error-java-lang-noclassdeffounderror-org-elasticsearch-client-sniff-nodessniffer/300448/4 "2022-04-21T07:40:49Z")

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