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https://issues.apache.org/jira/browse/FLINK-13702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16963897#comment-16963897
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Jingsong Lee commented on FLINK-13702:
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Hi [~dwysakowicz] , I think maybe we don't need to make it immutable. Consider
org.apache.flink.types.Row and other data formats, they are not immutable, but
it doesn't affect their read-only thread safety. In flink, maybe we just want
read-only thread safety objects.
> BaseMapSerializerTest.testDuplicate fails on Travis
> ---------------------------------------------------
>
> Key: FLINK-13702
> URL: https://issues.apache.org/jira/browse/FLINK-13702
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.10.0
> Reporter: Till Rohrmann
> Assignee: Dawid Wysakowicz
> Priority: Critical
> Labels: test-stability
>
> The {{BaseMapSerializerTest.testDuplicate}} fails on Travis with an
> {{java.lang.IndexOutOfBoundsException}}.
> https://api.travis-ci.org/v3/job/570973199/log.txt
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