Pfthb

I am trying to connect to a secured connection URL (https://example.com ) using a Java program to check availability of the site. Generally, I connect to https://example.com in browser by disabling proxy settings. Also, we have installed certificates in trusted root certificates.
I have added these certificates to Java Keystore successfully.

 import java.net.URL;
 import java.net.URLConnection;
 import java.security.Security.*;
 import com.sun.net.ssl.*;
 import com.sun.*; 

 import javax.net.ssl.HttpsURLConnection;
 import java.security.cert.Certificate;
 import java.io.*;
 import javax.net.ssl.SSLPeerUnverifiedException;
 import org.omg.CORBA_2_3.portable.InputStream;

 public class TestConn 
 public static void main(String args )
 
 try
 URL hp = new URL("https://example.com");
 HttpsURLConnection hpCon = (HttpsURLConnection)hp.openConnection();

 boolean isProxy = hpCon.usingProxy();
 System.out.println("is using proxy " + isProxy);
 InputStream obj = (InputStream) hpCon.getInputStream();
 while(obj.read()!=-1)
 System.out.println(obj.read_char());

 
 System.out.println("content >> " + obj.toString());
 catch (Exception ex)
 ex.printStackTrace();
 
 
 

I have encountered the following error:

java.net.ProtocolException: Server redirected too many times (20)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
 at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
 at TestConn.main(TestConn.java:28)

Can anyone please help me regarding this exception?

If you want to check availability of the site, you should use hpCon.getResponseCode();.
Response code 200 means that site is available. Frankly, i don't know your further purpose.
This is the modified codes, sure got the output content.

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;

public class Test 
public static void main(String args) 

 try 
 URL hp = new URL("https://godaddy.com");
 HttpsURLConnection hpCon = (HttpsURLConnection) hp.openConnection();

 boolean isProxy = hpCon.usingProxy();
 System.out.println("is using proxy " + isProxy);
 InputStream obj = hpCon.getInputStream();
 BufferedReader br = new BufferedReader(new InputStreamReader(obj));

 String s;
 while ((s = br.readLine()) != null) 
 System.out.println("content >>" + s);
 

 catch (Exception ex) 
 ex.printStackTrace();