for http://stackoverflow.com/questions/30224607/getting-images-from-https-with-java

ClientHttpsExample.java

package bayou;

import bayou.http.HttpClient;
import bayou.http.HttpClientConf;
import bayou.http.HttpResponse;
import bayou.ssl.SslConf;

import javax.imageio.ImageIO;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLParameters;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.nio.ByteBuffer;

public class ClientHttpsExample
{
    public static void main(String[] args) throws Exception
    {
        HttpClient client = new HttpClientConf()
            .sslContext(new SslConf().trustAll().createContext()) // trust self-signed certs
            .sslEngineConf(engine -> disableHostNameVerification(engine))
            .trafficDump(System.out::print)
            .newClient();
        // typically, app creates one client and use it for all requests

        String url = "https://ns6.host.md:8443/sitepreview/http/zugo.md/media/images/thumb/23812__yu400x250.jpg";
        HttpResponse response = client.doGet(url).sync();
        ByteBuffer bb = response.bodyBytes(Integer.MAX_VALUE).sync();

        InputStream is = new ByteArrayInputStream(bb.array(), bb.arrayOffset()+bb.position(), bb.remaining());
        BufferedImage image = ImageIO.read(is);

    }

    static void disableHostNameVerification(SSLEngine engine)
    {
        SSLParameters sslParameters = engine.getSSLParameters();
        {
            // by default, it's set to "HTTPS", and the server certificate must match the request host.
            // disable it for this example, since the server certificate is ill constructed.
            sslParameters.setEndpointIdentificationAlgorithm(null);
        }
        engine.setSSLParameters(sslParameters);
    }

}