[Fix #10902] Fix an error for Style/RedundantRegexpEscape string with invalid byte sequence in UTF-8

[ydah]

Fixed: #10902

---

Before submitting the PR make sure the following are checked:

• The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences.
• Wrote good commit messages.
• Commit message starts with [Fix #issue-number] (if the related issue exists).
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Added tests.
• Ran bundle exec rake default. It executes all tests and runs RuboCop on its own code.
• Added an entry (file) to the changelog folder named {change_type}_{change_description}.md if the new code introduces user-observable changes. See changelog entry format for details.

[bbatsov]

Jruby 9.3.7.0 has been released. Rerun the CI.

What about this?

[ydah]

As per the comments below we need a new jruby CI environment.
#10906 (comment)

[koic]

@ydah #10932 has been merged. Can you rebase with the latest master branch?

[ydah]

@koic Thank you! I rebase with the latest master branch and push.

[koic]

@ydah The CI matrix has been upgraded to JRuby 9.3.7, but the test still seem to fail. Can you take a look at it?
https://github.com/rubocop/rubocop/runs/8084419128?check_suite_focus=true#step:3:20

[ydah]

It seems to work when I run the following code on jruby-9.3.7.0 in my local environment.

r = /[\§]/
p r
=> /[§]/

ruby -v     
jruby 9.3.7.0 (2.6.8) 2022-08-16 c79ef237e0 Java HotSpot(TM) 64-Bit Server VM 25.341-b10 on 1.8.0_341-b10 +jit [x86_64-darwin]

[bbatsov]

@ydah I see this is still failing with JRuby.

[koic]

@ydah FYI, It will need to work with the JRuby core team to get CI up and running.

[ydah]

@koic Thank you very much. I opened the following Issue.

• error: invalid multibyte character occurs in JRuby 9.4.2.0 jruby/jruby#7769

[ydah]

@bbatsov @koic All tests now succeed with JRuby 9.4.3.0 🎉

[bbatsov]

Nice! Thanks for driving this to the finish line!