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https://issues.apache.org/jira/browse/MNG-7818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17734080#comment-17734080
 ] 

Tamas Cservenak commented on MNG-7818:
--------------------------------------

The refd commit simply implements this page 
https://hamcrest.org/JavaHamcrest/distributables "Upgrading from Hamcrest 1.x" 
section (maven case).

Also, user comment "upgrading to hamcrest 2.2 works fine" that is another thing 
I cannot understand.... upgrading where? In his project? As if so, that's 
another issue (if my assumption above stands): he imports depMgmt of Maven that 
uses 2.2 but the downstream project uses other hamcrest than 2.2? That again 
sounds wrong....

> [REGRESSION] maven improperly excludes hamcrest-core from junit
> ---------------------------------------------------------------
>
>                 Key: MNG-7818
>                 URL: https://issues.apache.org/jira/browse/MNG-7818
>             Project: Maven
>          Issue Type: Bug
>          Components: Dependencies
>    Affects Versions: 3.9.2
>         Environment: Any
>            Reporter: Lenny Primak
>            Priority: Minor
>
> junit 4 now has exclusions for hamcrest-core, which causes 
> ClassNotFouncException
> BTW: upgrading hamcrest-core to 2.2 (without exclusions) works just fine as 
> well
> Traced to https://issues.apache.org/jira/browse/MNG-7670
> {code:java}
> [INFO] Running com.flowlogix.arqsuite.DeploymentOneTest
> [ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.088 
> s <<< FAILURE! -- in com.flowlogix.arqsuite.DeploymentOneTest
> [ERROR] com.flowlogix.arqsuite.DeploymentOneTest.initializationError -- Time 
> elapsed: 0.009 s <<< ERROR!
> java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
>       at java.base/java.lang.ClassLoader.defineClass1(Native Method)
>       at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1013)
>       at 
> java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
>       at 
> java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862)
>       at 
> java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760)
>       at 
> java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)
>       at 
> java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)
>       at 
> java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
>       at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
>       at java.base/java.lang.Class.getDeclaredConstructors0(Native Method)
>       at 
> java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:3473)
>       at java.base/java.lang.Class.getConstructor0(Class.java:3678)
>       at java.base/java.lang.Class.getConstructor(Class.java:2368)
>       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:70)
>       at 
> org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:37)
>       at 
> org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:70)
>       at 
> org.junit.internal.requests.ClassRequest.createRunner(ClassRequest.java:28)
>       at 
> org.junit.internal.requests.MemoizingRequest.getRunner(MemoizingRequest.java:19)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:314)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:240)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:214)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:155)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:385)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:162)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.run(ForkedBooter.java:507)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:495)
> Caused by: java.lang.ClassNotFoundException: org.hamcrest.SelfDescribing
>       at 
> java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
>       at 
> java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
>       at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
>       ... 28 more  {code}



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