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https://issues.apache.org/jira/browse/SAMZA-1176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15951639#comment-15951639
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ASF GitHub Bot commented on SAMZA-1176:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/samza/pull/105


> Make TestJoinOperator unit tests safe for concurrent execution
> --------------------------------------------------------------
>
>                 Key: SAMZA-1176
>                 URL: https://issues.apache.org/jira/browse/SAMZA-1176
>             Project: Samza
>          Issue Type: Bug
>    Affects Versions: 0.13.0
>            Reporter: Prateek Maheshwari
>            Assignee: Prateek Maheshwari
>             Fix For: 0.13.0
>
>
> There are occasional failures like the following:
> ```joinRetainsMatchedMessagesReverse FAILED
>     java.lang.AssertionError: expected:<0> but was:<110>
>         at org.junit.Assert.fail(Assert.java:91)
>         at org.junit.Assert.failNotEquals(Assert.java:645)
>         at org.junit.Assert.assertEquals(Assert.java:126)
>         at org.junit.Assert.assertEquals(Assert.java:470)
>         at org.junit.Assert.assertEquals(Assert.java:454)
>         at 
> org.apache.samza.operators.TestJoinOperator.joinRetainsMatchedMessagesReverse(TestJoinOperator.java:174)```
> These are presumably due to concurrent JUnit test execution. This ticket is 
> to isolate these test cases so that they can be run concurrently.



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