[jira] [Commented] (HBASE-21467) Fix flaky test TestCoprocessorClassLoader.testCleanupOldJars

["Duo Zhang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-21467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16833204#comment-16833204 ] 

Duo Zhang commented on HBASE-21467:
-----------------------------------

Should this go into other branches? [~stack]

> Fix flaky test TestCoprocessorClassLoader.testCleanupOldJars
> ------------------------------------------------------------
>
>                 Key: HBASE-21467
>                 URL: https://issues.apache.org/jira/browse/HBASE-21467
>             Project: HBase
>          Issue Type: Bug
>         Environment: Ubuntu 18.04 LTS
> java version "1.8.0_181"
> Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
> Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)
> Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T13:33:14-05:00)
> Maven home: /home/OrdTesters/apache-maven-3.5.4
> Java version: 1.8.0_172, vendor: Oracle Corporation, runtime: /usr/lib/jvm/jdk1.8.0_172/jre
> Default locale: en_US, platform encoding: UTF-8
> OS name: "linux", version: "4.15.0-36-generic", arch: "amd64", family: "unix"
>            Reporter: OrDTesters
>            Assignee: OrDTesters
>            Priority: Minor
>             Fix For: 3.0.0
>
>
> TestCoprocessorClassLoader.testCleanupOldJars fails when run by itself.
> This can be fixed by calling CoprocessorClassLoader.getClassLoader, which initializes the jar file needed by testCleanupOldJars.
> Pull request: [https://github.com/apache/hbase/pull/100]
> Steps to reproduce: 
> {code:java}
> git clone https://github.com/apache/hbase
> cd hbase/hbase-common
> mvn install -DskipTests -am
> mvn test -Dtest="TestCoprocessorClassLoader#testCleanupOldJars"{code}
>  
> Stack trace of the failure:
>  
> {code:java}
> java.io.FileNotFoundException: /home/OrdTesters/Java/hbase/hbase-common/target/test-data/64b7e1ae-1c34-48f7-d731-9af59256dc0a/hbase-local-dir/jars/tmp/TestCleanupOldJars.test.jar (Aucun fichier ou dossier de ce type)
> at java.io.FileOutputStream.open0(Native Method)
> at java.io.FileOutputStream.open(FileOutputStream.java:270)
> at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
> at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
> at org.apache.hadoop.hbase.util.TestCoprocessorClassLoader.testCleanupOldJars(TestCoprocessorClassLoader.java:65)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
> at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.lang.Thread.run(Thread.java:748)
> {code}
>  



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