# How to customer java agent plugin?

**URL:** <https://discuss.elastic.co/t/how-to-customer-java-agent-plugin/220638>\
**Category:** APM\
**Created:** [February 24, 2020, 11:44am UTC](https://discuss.elastic.co/t/how-to-customer-java-agent-plugin/220638 "2020-02-24T11:44:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![hyhong](https://avatars.discourse-cdn.com/v4/letter/h/3bc359/32.png) [@hyhong](https://discuss.elastic.co/u/hyhong)\
**Post date:** [February 24, 2020, 11:44am UTC](https://discuss.elastic.co/t/how-to-customer-java-agent-plugin/220638/1 "2020-02-24T11:44:43Z")

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I want to customer a plugin,but there isn't a document about how to use the ElasticApmInstrumentation class and the class's method.  
Anyone provide,thank you.

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**Author:** ![nugusbayevkk](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nugusbayevkk/32/126683_2.png) [@nugusbayevkk](https://discuss.elastic.co/u/nugusbayevkk)\
**Post date:** [February 24, 2020, 11:48am UTC](https://discuss.elastic.co/t/how-to-customer-java-agent-plugin/220638/2 "2020-02-24T11:48:24Z")

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Hello @hyhong ,  
you can find cookbook here:

> **[Tips for Contributing a Plugin to the Elastic APM Java Agent](https://www.elastic.co/blog/a-cookbook-for-contributing-a-plugin-to-the-elastic-apm-java-agent)**
>
> Want to help make our Elastic APM Java agent work better for you? Read this implementation guide full of tips and best practices for contributing a plugin to this open source project.

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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:** [March 16, 2020, 7:48am UTC](https://discuss.elastic.co/t/how-to-customer-java-agent-plugin/220638/3 "2020-03-16T07:48:40Z")

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