See <https://builds.apache.org/job/karaf-4.0.x/61/changes>
- Jenkins build is unstable: karaf-4.0.x #56 Apache Jenkins Server
- Jenkins build is still unstable: karaf-4.0.x #5... Apache Jenkins Server
- Jenkins build is still unstable: karaf-4.0.... Apache Jenkins Server
- Jenkins build is still unstable: karaf-... Apache Jenkins Server
- Jenkins build is still unstable: ka... Apache Jenkins Server
- Jenkins build is back to stabl... Apache Jenkins Server
