See <https://builds.apache.org/job/karaf-4.0.x/529/display/redirect>
- Jenkins build became unstable: karaf-4.0.x #529 Apache Jenkins Server
- Build failed in Jenkins: karaf-4.0.x #530 Apache Jenkins Server
- Jenkins build is unstable: karaf-4.0.x #531 Apache Jenkins Server
- Jenkins build is back to stable : karaf... Apache Jenkins Server
