json - Jackson mapper with generic class in scala -

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i trying serialise generalresponse:

case class generalresponse[t](succeeded: boolean, payload: option[t])

and payload groupsforuserresult:

case class groupsforuserresult(groups: seq[uuid]).

i using mapper.readvalue(response.body, classof[generalresponse[groupsforuserresult]]) unfortunately payload serialised map , not desired case class (groupforuserresult).

because of java erasure - jackson can't know @ runtime generic type t line -

mapper.readvalue(response.body, classof[generalresponse[groupsforuserresult]])

a solution problem 

mapper.readvalue(json, new typereference[generalresponse[groupsforuserresult]] {})

this way provide instance of typereference needed type information.


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