We finally have a hudson patch process for zookeeper. If you are familiar with the patch process for Hadoop it is similar to that. Every patch on being patch available goes through a bunch of automated tests including ant test, checkstyle, javadoc warnings to +1 or -1 the patch.
Here is the link - http://hudson.zones.apache.org/hudson/view/ZooKeeper/ Thanks to Giri who has been working on it for the last few weeks. Mahadev