Как получить внешний ip при помощи java?

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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;

public class GetExternalIP {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://checkip.amazonaws.com");
            BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
            String externalIP = br.readLine().trim();
            System.out.println("Ваш внешний IP-адрес: " + externalIP);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;

public class GetExternalIP {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://icanhazip.com/");
            BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
            String externalIP = br.readLine().trim();
            System.out.println("Ваш внешний IP-адрес: " + externalIP);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}