Faça como eu fiz: utilizando a biblioteca Gson

import com.google.gson.FieldNamingPolicy;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import modelos.Titulo;
import modelos.TituloOmdb;

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.Scanner;

public class PrincipalBuscaAPi {
    public static void main(String[] args) throws IOException, InterruptedException {

        Scanner sc = new Scanner(System.in);
        String apiKey = "+++++++++++++";
//
//
        System.out.println("Digite o Titulo a consultar: ");
        String buscar = sc.nextLine();
        String endereco = "http://www.omdbapi.com/?s="+buscar+"&apikey="+apiKey;


        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder().uri(URI.create("http://www.omdbapi.com/?t="+buscar+"&apikey="+apiKey)).build();

        HttpResponse<String> response = client
                .send(request, HttpResponse.BodyHandlers.ofString());

        String json = response.body();

        System.out.println(json);
        Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.UPPER_CAMEL_CASE).create();


        TituloOmdb meuTituloOmdb = gson.fromJson(json, TituloOmdb.class);
        System.out.println(meuTituloOmdb);
        Titulo meuTitulo = new Titulo(meuTituloOmdb);
        System.out.println("----------___________________________________");

        System.out.println(meuTitulo);