See <http://hudson.zones.apache.org/hudson/job/ZooKeeper-trunk/552/>
- Build failed in Hudson: ZooKeeper-trunk #549 Apache Hudson Server
- Build failed in Hudson: ZooKeeper-trunk #550 Apache Hudson Server
- Build failed in Hudson: ZooKeeper-trunk #551 Apache Hudson Server
- Hudson build is back to normal: ZooKeepe... Apache Hudson Server
