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Identify ourself to a proxy

import java.net.HttpURLConnection; import java.net.URL; import java.util.Properties; import sun.misc.BASE64Encoder; public class Main {   public static void main(String[] argv) throws Exception {     Properties systemSettings = System.getProperties();     systemSettings.put("proxySet", "true");     systemSettings.put("http.proxyHost", "proxy.mycompany.local");     systemSettings.put("http.proxyPort", "80");     URL u = new URL("http://www.google.com");     HttpURLConnection con = (HttpURLConnection) u.openConnection();     BASE64Encoder encoder = new BASE64Encoder();     String encodedUserPwd = encoder.encode("domain\\username:password".getBytes());     con.setRequestProperty("Proxy-Authorization", "Basic " + encodedUserPwd);     con.setRequestMethod("HEAD");     System.out.println(con.getResponseCode() + " : " + con.getResponseMessage());     System.out.println(con.getResponseCode() == HttpURLConnection.HTTP_OK);   } }