# Build Plugin ElasticSearch have error when UnitTest

**URL:** <https://discuss.elastic.co/t/build-plugin-elasticsearch-have-error-when-unittest/143639>\
**Category:** Elasticsearch\
**Created:** [August 9, 2018, 7:06am UTC](https://discuss.elastic.co/t/build-plugin-elasticsearch-have-error-when-unittest/143639 "2018-08-09T07:06:25Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![trantrungtruc05](https://avatars.discourse-cdn.com/v4/letter/t/edb3f5/32.png) [@trantrungtruc05](https://discuss.elastic.co/u/trantrungtruc05)\
**Post date:** [August 9, 2018, 7:06am UTC](https://discuss.elastic.co/t/build-plugin-elasticsearch-have-error-when-unittest/143639/1 "2018-08-09T07:06:25Z")

</div>

Hi,

I writing plugin Elasticsearch by Java and build by maven . But when I run as Maven Test it has error below:

ERROR 0.00s | VietnameseAnalysisIntegrationTest (suite) \<\<\<

> Throwable #1: java.lang.RuntimeException: found jar hell in test classpath  
> at org.elasticsearch.bootstrap.BootstrapForTesting.(BootstrapForTesting.java:95)  
> at org.elasticsearch.test.ESTestCase.(ESTestCase.java:197)  
> at java.lang.Class.forName0(Native Method)  
> at java.lang.Class.forName(Class.java:348)  
> at com.carrotsearch.randomizedtesting.RandomizedRunner$2.run(RandomizedRunner.java:592)  
> Caused by: java.lang.IllegalStateException: jar hell!  
> class: com.sun.jna.AltCallingConvention  
> jar1: /home/trantrungtruc/.m2/repository/org/elasticsearch/jna/4.5.1/jna-4.5.1.jar  
> jar2: /home/trantrungtruc/.m2/repository/net/java/dev/jna/jna/4.1.0/jna-4.1.0.jar  
> at org.elasticsearch.bootstrap.JarHell.checkClass(JarHell.java:273)  
> at org.elasticsearch.bootstrap.JarHell.checkJarHell(JarHell.java:190)  
> at org.elasticsearch.bootstrap.JarHell.checkJarHell(JarHell.java:86)  
> at org.elasticsearch.bootstrap.BootstrapForTesting.(BootstrapForTesting.java:93)  
> ... 4 more  
> Completed [1/2 (1!)] in 0.45s, 0 tests, 1 error \<\<\< FAILURES!

Suite: org.elasticsearch.index.analysis.VietnameseAnalysisTest  
ERROR 0.00s | VietnameseAnalysisTest.initializationError \<\<\<

> Throwable #1: java.lang.NoClassDefFoundError: org.elasticsearch.test.ESTestCase  
> at java.lang.Class.getDeclaredMethods0(Native Method)  
> at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)  
> at java.lang.Class.getDeclaredMethods(Class.java:1975)  
> at com.carrotsearch.randomizedtesting.ClassModel$3.members(ClassModel.java:215)  
> at com.carrotsearch.randomizedtesting.ClassModel$3.members(ClassModel.java:212)  
> at com.carrotsearch.randomizedtesting.ClassModel$ModelBuilder.build(ClassModel.java:85)  
> at com.carrotsearch.randomizedtesting.ClassModel.methodsModel(ClassModel.java:212)  
> at com.carrotsearch.randomizedtesting.ClassModel.(ClassModel.java:207)  
> at com.carrotsearch.randomizedtesting.RandomizedRunner.(RandomizedRunner.java:329)  
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)  
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)  
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)  
> at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)  
> at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)  
> at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)  
> at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)  
> at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)  
> at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33)  
> at com.carrotsearch.ant.tasks.junit4.slave.SlaveMain.execute(SlaveMain.java:238)  
> at com.carrotsearch.ant.tasks.junit4.slave.SlaveMain.main(SlaveMain.java:354)  
> at com.carrotsearch.ant.tasks.junit4.slave.SlaveMainSafe.main(SlaveMainSafe.java:10)  
> Completed [2/2 (2!)] in 0.00s, 1 test, 1 error \<\<\< FAILURES!

Everyone can help me ? Thanks !!!

---

<div class="post-metadata">

**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:** [August 9, 2018, 8:54am UTC](https://discuss.elastic.co/t/build-plugin-elasticsearch-have-error-when-unittest/143639/2 "2018-08-09T08:54:12Z")

</div>

```auto
jar1: /home/trantrungtruc/.m2/repository/org/elasticsearch/jna/4.5.1/jna-4.5.1.jar
jar2: /home/trantrungtruc/.m2/repository/net/java/dev/jna/jna/4.1.0/jna-4.1.0.jar

```

You are having in your classpath 2 jars. You should exclude `net/java/dev/jna/jna/4.1.0/jna-4.1.0.jar` from your build I think.  
If you are using maven, run:

```auto
mvn dependency:tree

```

To see which dependency is bringing this jar and exclude it in your `pom.xml`.

About

```auto
Throwable #1: java.lang.NoClassDefFoundError: org.elasticsearch.test.ESTestCase

```

May be you did not include all the needed libs for testing? How did you build your project?

---

<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:** [September 6, 2018, 8:54am UTC](https://discuss.elastic.co/t/build-plugin-elasticsearch-have-error-when-unittest/143639/3 "2018-09-06T08:54:27Z")

</div>

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