String password, URL proxyURL, String proxyUsername, String proxyPassword, String proxyType)
String password)
  public HttpConnection(URL url,                              String username,                              String password,                              URL proxyURL,                              String proxyUsername,                              String proxyPassword,                              String proxyType)    throws IOException  {    _URL = url;    _proxyURL = proxyURL;    _proxyType = proxyType;    _username = username;    _password = password;    _proxyUsername = proxyUsername;    _proxyPassword = proxyPassword;    init();  }