Не работает HttpURLConnection

package com.example.demo.moduls;
 
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
 
public class Apiegrn {
    URL url;
 
    {
        try {
            url = new URL("https://apiegrn.ru/api/cadaster/search");
        } catch (MalformedURLException e) {
            throw new RuntimeException(e);
        }
    }
 
    HttpURLConnection http;
 
    {
        try {
            http = (HttpURLConnection) url.openConnection();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
    http.setRequestMethod("POST");
http.setDoOutput(true);
http.setRequestProperty("Token", "Здесь должен быть токен");
http.setRequestProperty("Content-Type", "application/json");
String data="{\\n    \\\"query\\\": \\\"Курск, Косухина 38, кв 19\\\",\\n\t\\\"mode\\\": \\\"normal\\\",\\n    \\\"grouped\\\": 0\\n}";
byte[] out=data.getBytes(StandardCharsets.UTF_8);
OutputStream stream=http.getOutputStream();
 
    public Apiegrn() throws IOException {
    }
stream.write(out);
    System.out.println(http.getResponseCode() + " " + http.getResponseMessage());
http.disconnect();
 
 
 
 
 
}

package com.example.demo.moduls;
 
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;
public  class Apiegrn {
    {
        try
 
    {
        URL url = new URL("https://apiegrn.ru/api/cadaster/search");
        HttpURLConnection http = (HttpURLConnection) url.openConnection();
        http.setRequestMethod("POST");
        http.setDoOutput(true);
        http.setRequestProperty("Token", "");
        http.setRequestProperty("Content-Type", "application/json");
 
        String data = "{\n    \"query\": \"Курск, Косухина 38, кв 19\",\n    \"mode\": \"normal\",\n    \"grouped\": 0\n}";
 
        byte[] out = data.getBytes(StandardCharsets.UTF_8);
 
        OutputStream stream = http.getOutputStream();
        stream.write(out);
 
        System.out.println(http.getResponseCode() + " " + http.getResponseMessage());
        http.disconnect();
    } catch(IOException e) {
        throw new RuntimeException(e);
    }
    }
}

public  class Apiegrn {
    void method_name() {
        //code there
    }
}