See <https://builds.apache.org/job/UIMA-SDK/org.apache.uima$uimaj-core/506/changes>
- Jenkins build became unstable: UIMA-SDK » Apache UI... Apache Jenkins Server
- Jenkins build is still unstable: UIMA-SDK » Apa... Apache Jenkins Server
- Jenkins build is still unstable: UIMA-SDK »... Apache Jenkins Server
- Jenkins build is back to stable : UIMA-... Apache Jenkins Server
