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https://issues.apache.org/jira/browse/FLINK-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16553877#comment-16553877
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ASF GitHub Bot commented on FLINK-9923:
---------------------------------------
Github user tillrohrmann commented on the issue:
https://github.com/apache/flink/pull/6398
I got this from an IntelliJ inspection warning which says
>Reports fields of type long or double which are declared as volatile.
While Java specifies that reads and writes from such fields are atomic, many
JVM's have violated this specification. Unless you are certain of your JVM, it
is better to synchronized access to such fields rather than declare them
volatile.
> OneInputStreamTaskTest.testWatermarkMetrics fails on Travis
> -----------------------------------------------------------
>
> Key: FLINK-9923
> URL: https://issues.apache.org/jira/browse/FLINK-9923
> Project: Flink
> Issue Type: Bug
> Components: Tests
> Affects Versions: 1.6.0
> Reporter: Till Rohrmann
> Priority: Critical
> Labels: pull-request-available, test-stability
> Fix For: 1.6.0
>
>
> {{OneInputStreamTaskTest.testWatermarkMetrics}} fails on Travis with
> {code}
> java.lang.AssertionError: expected:<1> but was:<-9223372036854775808>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:834)
> at org.junit.Assert.assertEquals(Assert.java:645)
> at org.junit.Assert.assertEquals(Assert.java:631)
> at
> org.apache.flink.streaming.runtime.tasks.OneInputStreamTaskTest.testWatermarkMetrics(OneInputStreamTaskTest.java:731)
> {code}
> https://api.travis-ci.org/v3/job/407196285/log.txt
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