See <https://builds.apache.org/job/karaf-master/2889/>
- Jenkins build became unstable: karaf-master #2889 Apache Jenkins Server
- Jenkins build is still unstable: karaf-master #... Apache Jenkins Server
- Jenkins build is still unstable: karaf-mast... Apache Jenkins Server
- Jenkins build is still unstable: karaf-... Apache Jenkins Server
- Jenkins build is back to stable : k... Apache Jenkins Server
