[jira] [Created] (FLINK-1077) Flakey test CliFrontendPackageProgramTest

[Shang Yuanchun (Jira)]

Stephan Ewen created FLINK-1077:
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             Summary: Flakey test CliFrontendPackageProgramTest
                 Key: FLINK-1077
                 URL: https://issues.apache.org/jira/browse/FLINK-1077
             Project: Flink
          Issue Type: Bug
            Reporter: Stephan Ewen


Test is error is CliFrontendPackageProgramTest # testPlanWithExternalClass()

The error occurs in my recent travis builds one in 10 times or so.

The following stack trace describes the error:
{code}
java.lang.AssertionError
 at org.junit.Assert.fail(Assert.java:86)
 at org.junit.Assert.assertTrue(Assert.java:41)
 at org.junit.Assert.assertTrue(Assert.java:52)
 at org.apache.flink.client.CliFrontendPackageProgramTest$1.loadClass(CliFrontendPackageProgramTest.java:249)
{code}

Is it possible that race conditions cause the classloader to be used for different classes as well? In any case, the test should change the assertion to assertEquals, such that the expected name is part of the error message (helps debugging what went wrong).



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