package pruebas;

    import java.net.MalformedURLException;
    import java.net.URL;
    import java.security.cert.Certificate;
    import java.io.*;
    import javax.net.ssl.HttpsURLConnection;
    import javax.net.ssl.SSLPeerUnverifiedException;

    public class HttpsClient {

    public static void main(String[] args) throws Exception {
        new HttpsClient().testIt();
    }

    private void testIt() throws Exception {

        String https_url = "https://dominioproveedor.com/get-token/";
        URL url;
        try {

            url = new URL(https_url);
            HttpsURLConnection con = (HttpsURLConnection) url.openConnection();
            con.setRequestProperty("Authorization", "Basic 1234567891234567891234567890");

            print_https_cert(con);

            print_content(con);

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    private void print_https_cert(HttpsURLConnection con) {

        if (con != null) {

            try {

                System.out.println("Response Code : " + con.getResponseCode());
                System.out.println("Cipher Suite : " + con.getCipherSuite());
                System.out.println("\n");

                Certificate[] certs = con.getServerCertificates();
                for (Certificate cert : certs) {
                    System.out.println("Cert Type : " + cert.getType());
                    System.out.println("Cert Hash Code : " + cert.hashCode());
                    System.out.println("Cert Public Key Algorithm : " + cert.getPublicKey().getAlgorithm());
                    System.out.println("Cert Public Key Format : " + cert.getPublicKey().getFormat());
                    System.out.println("\n");
                }

            } catch (SSLPeerUnverifiedException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

        }

    }

    private void print_content(HttpsURLConnection con) {
        if (con != null) {

            try {

                System.out.println("****** Content of the URL ********");
                BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));

                String input;
                while ((input = br.readLine()) != null) {
                    System.out.println(input);
                }
                br.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    }