See <https://builds.apache.org/job/PDFBox-trunk/1394/changes>
- Jenkins build became unstable: PDFBox-trunk #1394 Apache Jenkins Server
- Jenkins build is still unstable: PDFBox-trunk #... Apache Jenkins Server
- Jenkins build is still unstable: PDFBox-tru... Apache Jenkins Server
- Jenkins build is back to stable : PDFBo... Apache Jenkins Server
