See <https://ci-builds.apache.org/job/Jena/job/Jena%20Development%20Deploy/511/display/redirect?page=changes>
- Jenkins build became unstable: Jena » Jena Developm... Apache Jenkins Server
- Build failed in Jenkins: Jena » Jena Developmen... Apache Jenkins Server
- Jenkins build is back to normal : Jena » Je... Apache Jenkins Server