See <https://builds.apache.org/job/OpenJPA-22x-deploy/org.apache.openjpa$openjpa-persistence-jdbc/95/changes>
- Jenkins build became unstable: OpenJPA-22x-deploy »... Apache Jenkins Server
- Jenkins build is still unstable: OpenJPA-22x-de... Apache Jenkins Server
- Jenkins build is back to stable : OpenJPA-2... Apache Jenkins Server
