JSON root wrapping

class LocationsController(val swagger:Swagger) extends HullCityPlanApiStack with JacksonJsonParsing with JacksonJsonSupport {
 implicit val jsonFormats = DefaultFormats+ new ObjectIdSerializer
 var locationService = new LocationService()
 mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, true)
 ...
}

what I want

{"location" : 
  [{
    "id":{"$oid":"51cac8d84728c7471e101317"},
    "name":"test1",
    "coordinates":[],
    "jobs":100
  }]
}

with wrap

{
  "JArray":[{
    "JObject":{
      "id":{"JObject":{"$oid":{"JString":"51caca2e472829f13a8b6dc1"}}},
      "name":{"JString":"test1"},
      "coordinates":{"JArray":[]},
      "jobs":{"JInt":100}
    }
  }]
}

without wrap

[
  {
    "id":{"$oid":"51cac8d84728c7471e101317"},
    "name":"test1",
    "coordinates":[],
    "jobs":100
  }
]