Как отправить json java

import java.io.IOException;
import org.apache.http.HttpEntity;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;

public class JsonSender {
    public static void main(String[] args) throws IOException {
        String json = "{\"name\":\"John\",\"age\":30,\"city\":\"New York\"}";
        
        HttpClient httpClient = HttpClientBuilder.create().build();
        HttpPost httpPost = new HttpPost("https://example.com/api/endpoint");
        
        StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
        httpPost.setEntity(entity);
        
        httpPost.setHeader("Accept", "application/json");
        httpPost.setHeader("Content-type", "application/json");
        
        httpClient.execute(httpPost);
    }
}