[FLINK-12974] Bump checkstyle version to 8.14

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.2, 1.8.0
• Fix Version/s: 1.9.0
• Component/s: Build System
• Labels: pull-request-available
• Assignee: Biao Liu
• Reporter: Biao Liu
• Created: 25/Jun/19 08:58
• Updated: 05/Jul/19 06:59
• Resolved: 05/Jul/19 06:59

Description

The descriptions of checkstyle of IDE setup document [1] is out of date.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

Issue Links

• links to: GitHub Pull Request #8870