See <https://builds.apache.org/job/karaf-2.x/546/changes>
- Jenkins build became unstable: karaf-2.x #543 Apache Jenkins Server
- Jenkins build is still unstable: karaf-2.x #544 Apache Jenkins Server
- Jenkins build is still unstable: karaf-2.x ... Apache Jenkins Server
- Jenkins build is back to stable : karaf... Apache Jenkins Server
