Different JSON formats

Found the following examples of different JSON formats here.

@XmlRootElement

public static class SimpleJaxbBean 
{

   public String name = "Franz";

   public String surname = "Kafka";

}

XML output:

<simpleJaxbBean>
  <name>Franz</name>
  <surname>Kafka</surname>
</simpleJaxbBean>

Badgerfish format:

{"simpleJaxbBean":{"name":{"$":"Franz"},
"surname":{"$":"Kafka"}}}

Mapped format (Jettison):

{"simpleJaxbBean":{"name":"Franz",
"surname":"Kafka"}}

and finally Jersey default format:

{"name":"Franz",
"surname":"Kafka"}