What is the fundmental difference between using RestEasy JSON Provider Jettison (Badgerfish mapping) over Jackson?
What is is pros and cons of using the one over the other?
Jettison is old.
Jackson is arguably the standard Java Library for processing JSON. Jackson is included in Glassfish.
Also some developers has warned me to stay off Badgerfish.
You can implement Jackson in Resteasy, see here.