Test1.java

import java.net.URL;

public class Test1 {

    public static void main(String... args) throws Exception {
        URL url = new URL("http://google.com");
        System.out.println(url.equals(new URL("http://google.com")));
        Thread.sleep(30000);
        System.out.println(url.equals(new URL("http://google.com")));
    }

}