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https://issues.apache.org/jira/browse/FLINK-31298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17697698#comment-17697698
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Wencong Liu commented on FLINK-31298:
-------------------------------------
cc [~mapohl]
> ConnectionUtilsTest.testFindConnectingAddressWhenGetLocalHostThrows swallows
> IllegalArgumentException
> -----------------------------------------------------------------------------------------------------
>
> Key: FLINK-31298
> URL: https://issues.apache.org/jira/browse/FLINK-31298
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Affects Versions: 1.17.0, 1.15.3, 1.16.1
> Reporter: Matthias Pohl
> Assignee: Wencong Liu
> Priority: Major
> Labels: pull-request-available, starter, test-stability
>
> FLINK-24156 introduced {{NetUtils.acceptWithoutTimeout}} which caused the
> test to print a the stacktrace of an {{IllegalArgumentException}}:
> {code}
> Exception in thread "Thread-0" java.lang.IllegalArgumentException:
> serverSocket SO_TIMEOUT option must be 0
> at
> org.apache.flink.util.Preconditions.checkArgument(Preconditions.java:138)
> at
> org.apache.flink.util.NetUtils.acceptWithoutTimeout(NetUtils.java:139)
> at
> org.apache.flink.runtime.net.ConnectionUtilsTest$1.run(ConnectionUtilsTest.java:83)
> at java.lang.Thread.run(Thread.java:750)
> {code}
> This is also shown in the Maven output of CI runs and might cause confusion.
> The test should be fixed.
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