[NEW RELEASE] sonar-checkstyle 4.28

Hi,

Short description:
Issue #259: update to CS 8.28
Issue #232: update to SQ 7.9
update to JDK 11

Sonarqube compatibility: 7.9-LATEST
JDK: 11

SonarCloud project dashboard: https://sonarcloud.io/dashboard?id=checkstyle_sonar-checkstyle

PR: https://github.com/SonarSource/sonar-update-center-properties/pull/87

Thanks,
Daniel

Hi Daniel,

Done.

 
Ann