return ntlmContext;
    }


    @Override
    public NtlmPasswordAuthenticator clone () {
        NtlmPasswordAuthenticator cloned = new NtlmPasswordAuthenticator();
        cloneInternal(cloned, this);
        return cloned;
    }


    protected static void cloneInternal ( NtlmPasswordAuthenticator cloned, NtlmPasswordAuthenticator toClone ) {
        cloned.domain = toClone.domain;

        CIFSContext testCtx = this.context.withCredentials(new NtlmPasswordAuthenticator("TEST", "test-user", "test-pw"));
        Credentials setCreds = testCtx.getCredentials();
        assertThat(setCreds, CoreMatchers.is(CoreMatchers.instanceOf(NtlmPasswordAuthenticator.class)));
        NtlmPasswordAuthenticator setCredsNtlm = setCreds.unwrap(NtlmPasswordAuthenticator.class);
        assertEquals("TEST", setCredsNtlm.getUserDomain());

            assertFalse(creds.isAnonymous());
            assertFalse(creds.isGuest());
            assertTrue(creds instanceof NtlmPasswordAuthenticator);
            NtlmPasswordAuthenticator ntcreds = (NtlmPasswordAuthenticator) creds;

            assertNotNull(ntcreds.getUsername());
            assertEquals(user, ntcreds.getUsername());
            assertNotNull(ntcreds.getUserDomain());

 * See {@link jcifs.Configuration#isDfsConvertToFQDN()} for a workaround.
 */
public class Kerb5Authenticator extends NtlmPasswordAuthenticator {

    private static final long serialVersionUID = 1999400043787454432L;
    private static final Logger log = LoggerFactory.getLogger(Kerb5Authenticator.class);
    private static final String DEFAULT_SERVICE = "cifs";

import jcifs.internal.SMBSigningDigest;
import jcifs.internal.smb1.com.SmbComReadAndXResponse;
import jcifs.internal.smb1.trans.nt.SmbComNtCancel;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtlmPasswordAuthenticator;
import jcifs.smb.SmbException;
import jcifs.smb.SmbTransportInternal;
import jcifs.util.Crypto;
import jcifs.util.Hexdump;


/**
 * 
 * @internal
 */

        }
        catch ( IllegalArgumentException e ) {
            log.error("Failed to parse OID", e);
        }
    }

    private NtlmPasswordAuthenticator auth;
    private int ntlmsspFlags;
    private String workstation;
    private boolean isEstablished = false;
    private byte[] serverChallenge = null;
    private byte[] masterKey = null;