scala> passwordValidator.reads(json)
res8: play.api.libs.json.JsResult[play.api.libs.json.JsObject] =
JsSuccess({"name":"John","email":"john.doe@company.com","password":"password","confirmPassword":"password"},)

scala> passwordValidator.reads(json2)
res9: play.api.libs.json.JsResult[play.api.libs.json.JsObject] =
JsError(List((,List(ValidationError(password not confirmed,WrappedArray())))))