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https://issues.apache.org/jira/browse/FLINK-2464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14652119#comment-14652119
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Stephan Ewen commented on FLINK-2464:
-------------------------------------
Can you paste the build on which that happened? I have the suspicion that there
may be an issue with Java 6.
The {{BarrierBufferMassiveRandomTest}} sometimes crash the JVM on Java 6
builds, which almost looks like the I/O code causes a segfault, or a similar
critical issue. Since we are not using any unsafe stuff in that code, it may be
a Java issue.
If the barrier buffer I/O is affected by that, it may also explain the failures
of the {{BufferSpillerTest}} and the {{StreamCheckpointingITCase}}.
> BufferSpillerTest sometimes fails
> ---------------------------------
>
> Key: FLINK-2464
> URL: https://issues.apache.org/jira/browse/FLINK-2464
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Reporter: Gyula Fora
> Priority: Minor
>
> The BufferSpillerTest failed with the following error:
> org.apache.flink.streaming.runtime.io.BufferSpillerTest
> testSpillWhileReading(org.apache.flink.streaming.runtime.io.BufferSpillerTest)
> Time elapsed: 3.28 sec <<< FAILURE!
> java.lang.AssertionError: wrong buffer contents expected:<0> but was:<58>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at
> org.apache.flink.streaming.runtime.io.BufferSpillerTest.validateBuffer(BufferSpillerTest.java:290)
> at
> org.apache.flink.streaming.runtime.io.BufferSpillerTest.access$200(BufferSpillerTest.java:42)
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