https://checkstyle.org/releasenotes.html#Release_8.18
https://github.com/checkstyle/checkstyle/issues/6474
https://github.com/checkstyle/checkstyle/issues/6478
https://github.com/checkstyle/checkstyle/pull/6476
https://lists.apache.org/thread.html/7eea10e7be4c21060cb1e79f6524c6e6559ba833b1465cd2870a56b9@%3Cserver-dev.james.apache.org%3E
https://lists.apache.org/thread.html/a35a8ccb316d4c2340710f610cba8058e87d5376259b35ef3ed2bf89@%3Cnotifications.accumulo.apache.org%3E
https://lists.debian.org/debian-lts-announce/2019/04/msg00029.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2BMOPJ2XYE4LB2HM7OMSUBBIYEDUTLWE/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AEYBAHYAV37WHMOXZYM2ZWF46FHON6YC/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VJPT54USMGWT3Y6XVXLDEHKRUY2EI4OE/
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