Tring to connect using HTTPS: Server redirected too many times

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?