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https://issues.apache.org/jira/browse/FLINK-16675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17062384#comment-17062384
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Rui Li commented on FLINK-16675:
--------------------------------
I can't reproduce the failure by running this specific case. So I suspect it's
due to test fork reuse. I added some reset logic in the PR. Is there a way to
verify the change, like manually trigger the cron job?
> TableEnvironmentITCase. testClearOperation fails on travis nightly build
> ------------------------------------------------------------------------
>
> Key: FLINK-16675
> URL: https://issues.apache.org/jira/browse/FLINK-16675
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Affects Versions: 1.10.0
> Reporter: Yu Li
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.10.1, 1.11.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Observed below error in release-1.10 crone build:
> {code}
> 00:39:02.215 [ERROR]
> testClearOperation[batch](org.apache.flink.table.api.TableEnvironmentITCase)
> Time elapsed: 0.081 s <<< ERROR!
> org.apache.flink.api.common.InvalidProgramException: The implementation of
> the CollectionInputFormat is not serializable. The object probably contains
> or references non serializable fields.
> at
> org.apache.flink.table.api.TableEnvironmentITCase.testClearOperation(TableEnvironmentITCase.scala:154)
> Caused by: java.lang.RuntimeException: Row arity of from does not match
> serializers.
> at
> org.apache.flink.table.api.TableEnvironmentITCase.testClearOperation(TableEnvironmentITCase.scala:154)
> {code}
> https://api.travis-ci.org/v3/job/664048405/log.txt
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