JsonParser is deprecated


Getting deprecated message for JsonParser for Spring Boot app,

JsonObject jsonObject = new JsonParser().parse(result).getAsJsonObject();

What is the alternative?


Based on the javadoc for Gson 2.8.6

No need to instantiate this class, use the static methods instead.

and following are the alternatives to be used.

// jsonString is of type java.lang.String
JsonObject jsonObject = JsonParser.parseString​(jsonString).getAsJsonObject();

// reader is of type java.io.Reader
JsonObject jsonObject = JsonParser.parseReader​(reader).getAsJsonObject();

// jsonReader is of type com.google.gson.stream.JsonReader
JsonObject jsonObject = JsonParser.parseReader​(jsonReader).getAsJsonObject();


import static org.junit.Assert.assertTrue;

import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

public class Test {

    public static void main(String[] args) {
        String jsonString = "{ \"name\":\"John\"}";

        JsonObject jsonObjectAlt = JsonParser.parseString(jsonString).getAsJsonObject();
        // Shows deprecated warning for new JsonParser() and parse(jsonString)
        JsonObject jsonObject = new JsonParser().parse(jsonString).getAsJsonObject();



Answered By – R.G

This Answer collected from stackoverflow, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0

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