See <https://hudson.apache.org/hudson/job/dir-apacheds-jdk15-ubuntu-deploy/org.apache.directory.server$apacheds-core-api/26/>
- Hudson build became unstable: dir-apacheds -jdk15-ub... Apache Hudson Server
- Hudson build is still unstable: dir-apacheds -jd... Apache Hudson Server
- Hudson build is back to stable : dir-apached... Apache Hudson Server
