How to handle a NumberFormatException with Gson in deserialization a JSON response

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Here is an example that I made for Long type. This is a better option:

public class LongTypeAdapter extends TypeAdapter<Long> {

    @Override
    public Long read(JsonReader reader) throws IOException {
        if (reader.peek() == JsonToken.NULL) {
            reader.nextNull();
            return null;
        }
        String stringValue = reader.nextString();
        try {
            Long value = Long.valueOf(stringValue);
            return value;
        } catch (NumberFormatException e) {
            return null;
        }
    }

    @Override
    public void write(JsonWriter writer, Long value) throws IOException {
        if (value == null) {
            writer.nullValue();
            return;
        }
        writer.value(value);
    }
}

Register an adapter using Gson util:

Gson gson = new GsonBuilder().registerTypeAdapter(Long.class, new LongTypeAdapter()).create();

You can refer to this link for more.

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