Prabhu Joseph created YARN-9324:
-----------------------------------

             Summary: TestSchedulingRequestContainerAllocation(Async) fails 
with junit-4.11
                 Key: YARN-9324
                 URL: https://issues.apache.org/jira/browse/YARN-9324
             Project: Hadoop YARN
          Issue Type: Test
          Components: capacity scheduler
    Affects Versions: 3.2.0
            Reporter: Prabhu Joseph
            Assignee: Prabhu Joseph


TestSchedulingRequestContainerAllocation(Async) fails with junit-4.11 in 
branch-3.2 with below exception while using array return type of @Parameters 
method of the Parameterized runner. This is supported from junit-4.12 and works 
in branch-3.3. branch-3.3 has junit-4.12 from HADOOP-14775

https://github.com/junit-team/junit4/blob/master/doc/ReleaseNotes4.12.md#parameterized-tests

{code}
[ERROR] 
initializationError(org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestSchedulingRequestContainerAllocation)
  Time elapsed: 0.008 s  <<< ERROR!
java.lang.Exception: 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestSchedulingRequestContainerAllocation.placementConstarintHandlers()
 must return an Iterable of arrays.
        at 
org.junit.runners.Parameterized.parametersMethodReturnedWrongType(Parameterized.java:343)
        at org.junit.runners.Parameterized.allParameters(Parameterized.java:296)
        at org.junit.runners.Parameterized.<init>(Parameterized.java:282)
        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:29)
        at 
org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:21)
        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:26)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:362)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
        at 
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
        at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
        at 
org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
        at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
{code}



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