Deference of 'response.body()' may produce 'java.lang.NullPointerException

Question

I have a error. name is value string type. setText is string type but i have a error.

     Factory.getInstance().placeHolderModel().enqueue(new Callback<PlaceHolderModel>() {
        @Override
        public void onResponse(Call<PlaceHolderModel> call, Response<PlaceHolderModel> response) {
            textView.setText(response.body().name);
        }

Thank you very much

Your advice important for me

This is not an error, it is a warning produced by your IDE, that indicates that response might be `null`. — Mark Rotteveel, Aug 15 '17 at 11:00

score 0 · Answer 1 · answered Aug 15 '17 at 10:43

it's just a warning not an error, to prevent that use

if (response.body != null ) {}

or use annotation at the header of your method @NonNull

Denotes that a parameter, field or method return value can never be null.

public void onResponse(@NonNull Call<PlaceHolderModel> call, Response<PlaceHolderModel> response) {

link

Deference of 'response.body()' may produce 'java.lang.NullPointerException

1 Answers1