[jira] [Created] (FLINK-12974) Bump checkstyle version to 8.14

[Shang Yuanchun (Jira)]

Biao Liu created FLINK-12974:
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             Summary: Bump checkstyle version to 8.14
                 Key: FLINK-12974
                 URL: https://issues.apache.org/jira/browse/FLINK-12974
             Project: Flink
          Issue Type: Improvement
          Components: Build System
    Affects Versions: 1.8.0, 1.7.2
            Reporter: Biao Liu
            Assignee: Biao Liu
             Fix For: 1.9.0


The descriptions of checkstyle of IDE setup document [1] is out of date. In the current checkstyle plugin (v5.28.0), there is no option of 8.12 in checkstyle setting dialog box. The version 8.12 is no longer supported, checkstyle suggests to upgrade to 8.14 "due to lack of breaking changes" [2].
It would confuse the user that document says "This step is important, don’t skip it!", but user can not find the 8.12 option.
Since there are still some modules do not support checkstyle plugin, I have just manually checked some modules under 8.14 version. It shows OK.
cc [~Zentol], is there a better way to check the bumping?

1. https://ci.apache.org/projects/flink/flink-docs-master/flinkDev/ide_setup.html#checkstyle-for-java
2. https://github.com/jshiell/checkstyle-idea/commit/8504b286e9e443223db0b0f3b2d82e5bc183918f#diff-1698afbd7d9abfdb701fc6e471529013



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