can be used to send the credentials when needed : HttpURLConnection « Network Protocol « Java can be used to send the credentials when needed


import java.util.Properties;

public class Main {
  public static void main(String[] argv) throws Exception {
    byte[] b = new byte[1];
    Properties systemSettings = System.getProperties();
    systemSettings.put("http.proxyHost", "proxy.mydomain.local");
    systemSettings.put("http.proxyPort", "80");

    Authenticator.setDefault(new Authenticator() {
      protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication("mydomain\\username", "password".toCharArray());

    URL u = new URL("");
    HttpURLConnection con = (HttpURLConnection) u.openConnection();
    DataInputStream di = new DataInputStream(con.getInputStream());
    while (-1 !=, 0, 1)) {
      System.out.print(new String(b));


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