* if the server does not use Kerberos SPNEGO HTTP authentication.
*/
public class KerberosUgiAuthenticator extends KerberosAuthenticator {
@Override
protected Authenticator getFallBackAuthenticator() {
return new PseudoAuthenticator() {
@Override
protected String getUserName() {
try {
return UserGroupInformation.getLoginUser().getUserName();
} catch (IOException e) {