So I was playing with a patch Building an testing to Jersey but I was having trouble building and running the tests. It seems that there are problems if you don't have the same specific version of Maven, (2.0.9), once that is solved you might run across another issue as the default memory given to Maven will not be enough for all the test to succeed.
The way to track the correct values is to take a look at "hudson/jersey.sh" and this will set the MAVEN_OPTS to:
export MAVEN_OPTS="-Xms512m -Xmx1024m -XX:PermSize=256m -XX:MaxPermSize=512m"
This it turns out isn't sufficient if you are running behind a firewall, at least on Linux, and you need to specify the web proxy as well for some tests:
export MAVEN_OPTS="-Xms512m -Xmx1024m -XX:PermSize=256m -XX:MaxPermSize=512m -Dhttp.proxyHost=proxy -Dhttp.noProxyHosts=localhost"
With that resolved I can build and test all of Jersey in a relatively small amount of time. Although it does seem you need an active network connection which is a shame.