@nmancus1 , please keep CI happy all the time - https://travis-ci.org/github/checkstyle/checkstyle/jobs/693436338#L636

@nmancus1 , did you find any interesting examples in openjdk project ?
I stumbled a lot on records in openjdk14.

please keep CI happy all the time

What should I do in this case? Isn't this failing since we can't parse this file yet?

did you find any interesting examples in openjdk project

Yes, should I provide more examples?

from travis:

[INFO]      [echo] Checkstyle started (checkstyle_resources_checks.xml): 01/06/2020 01:11:03 PM
[INFO] [checkstyle] Running Checkstyle  on 1853 files
[ERROR] [checkstyle] [ERROR] /home/travis/build/checkstyle/checkstyle/src/test/resources-noncompilable

Checkstyle should not try to parse such files at all, we do not support non-compilable files at all, please investigate our config do not filter out such files.
all is here - https://github.com/checkstyle/checkstyle/blob/master/config/ant-phase-verify.xml

should I provide more examples?

if examples are different in some way - yes,
if no interesting cases - just make it clear in pr description that nothing special found.

Checkstyle should not try to parse such files at all, we do not support non-compilable files at all

We are still checking them with config checkstyle_resources_checks.xml; OuterTypeFilenameCheck is causing the issue. I have explicitly added InputJava14Records.java to the excludes list.

Looks good to me once CI is green!

@pbludov , @esilkensen , please do not allow commit message to start from issue, if it does not fix issue. in release notes it will looks like we provided support for this issue, but do not, and we just did some preparation fix for this issue. in such case you can do minor: .... (#8023)

My bad. I didn't even look at the commit description. I'll keep it in mind for the future.