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https://issues.apache.org/jira/browse/FLINK-27995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17630362#comment-17630362
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Sergey Nuyanzin commented on FLINK-27995:
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I will put this comment since working with update of Calcite to 1.28.0 I had to
think about update of Janino since Calcite 1.28.0 depends on 3.1.6.
There are several issues on Janino side which should be kept in mind
# There are several issues with code compiliations introduced in 3.1.3 leading
to failure of Flink tests in {{AggregateITCase}} and {{OverAggregateITCase}}.
They are fixed in 3.1.7 and 3.1.8.
# Since 3.1.3 Janino is unable to compile code with variable initialized in
{{while}} condition (required by some Flink tests), link to the issue
https://github.com/janino-compiler/janino/issues/185 (fixed in master)
# Since 3.1.3 Janino is unable to compile code with variables initialized in
one {{if/else}} branches (required by lots of Flink tests), link to the issue
https://github.com/janino-compiler/janino/issues/187 (fixed in master)
# Since 3.1.3 Janino is unable to compile code with ternary operator where the
first branch is {{null}} without casting (required by some Flink tests), link
to the issue https://github.com/janino-compiler/janino/issues/188 (not fixed
yet)
Meanwhile each of this issues could be workarounded (still discussable what is
better wait for Janino's release with all the fixes or not).
> Upgrade Janino version
> -----------------------
>
> Key: FLINK-27995
> URL: https://issues.apache.org/jira/browse/FLINK-27995
> Project: Flink
> Issue Type: Technical Debt
> Components: Table SQL / Runtime
> Affects Versions: 1.16.0
> Reporter: Shengkai Fang
> Priority: Major
>
> Currently, the Janino version doesn't support JDK11 well.
>
> [https://lists.apache.org/thread/q052xdn1mnhjm9k4ojjjz22dk4r1xwfz]
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