When a controller detects that a DTO passed to it is null should it instantiate an instance of the DTO (cf the Null Object Pattern), or should it simply throw an exception there and then?
Thanks
Behavior of a controller action on reception of a null dto
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If null means that you can instantiate a Null Object and act in a default way, it's ok. If null makes any sense to the controller, handle this case. If null makes no sense to the controller, throw an exception.