gson string deserializer

StringDeserializer.java

public class StringDeserializer implements JsonDeserializer<String> {
    @Override
    public String deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
        if (json.isJsonObject()) {
            return json.toString();
        } else {
            return json.getAsString();
        }
    }
}