HTTPs Request Authentication Failing Even After Setting Proxy

i am trying to access an https request on a server and authenticating it after passing on username and passwork. I have even set up the proxy of the employer to get the request back as a zipped folder.

I always get an error on: " InputStream reader = con.getInputStream();"

Can be a proxy setting issue too but I am not sure why it should be.

Is there a way to create a secure channel in java to connect to https or by any way the below code could be modified to connect it to the server?

Code is as below:

import java.net.*;
import java.net.Proxy.Type;
import java.io.*;
import javax.net.ssl.HttpsURLConnection;
import com.sun.org.apache.xerces.internal.impl.dv.util.Ba se64;
public class DownloadFile
{

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