if (compatibility < 3) {
            log.warn("Using insecure NTLMv1 authentication (LM compatibility level {}). "
                    + "Please upgrade to NTLMv2 by setting jcifs.smb.lmCompatibility to 3 or higher.", compatibility);
        }

        switch (compatibility) {
        case 0:
        case 1:
            // NTLMv1 - deprecated and insecure

    /** NetBIOS hostname */
    String NETBIOS_HOSTNAME = Config.getProperty("jcifs.smb1.netbios.hostname", null);
    /** LM compatibility level */
    int LM_COMPATIBILITY = Config.getInt("jcifs.smb1.smb.lmCompatibility", 3);

    /** No flags set */
    int FLAGS_NONE = 0x00;
    /** Lock and read write and unlock flag */
    int FLAGS_LOCK_AND_READ_WRITE_AND_UNLOCK = 0x01;

 */
public class NtlmHttpURLConnection extends HttpURLConnection {

    private static final int MAX_REDIRECTS = Integer.getInteger("http.maxRedirects", 20);

    private static final int LM_COMPATIBILITY = Config.getInt("jcifs.smb1.smb.lmCompatibility", 0);

    private static final String DEFAULT_DOMAIN;

    private HttpURLConnection connection;

    private final Map requestProperties;

    private Map headerFields;

     * <td>NTLM only</td>
     * </tr>
     * <tr>
     * <td>3-5</td>
     * <td>NTLMv2 only</td>
     * </tr>
     * </table>
     *
     *
     * Property {@code jcifs.smb.lmCompatibility} (int, default 3)
     *
     * @return lanman compatibility level, defaults to 3 i.e. NTLMv2 only
     */
    int getLanManCompatibility();

    /**
     *

                break;
            }
        } catch (final Exception ex) {
            throw new SmbException("", ex);
        }
        if (LogStream.level >= 5) {
            log.println("LM_COMPATIBILITY=" + LM_COMPATIBILITY);
            Hexdump.hexdump(log, macSigningKey, 0, macSigningKey.length);
        }
    }

    /**
     * Updates the digest with the specified data.
     *

                break;
            }
        } catch (final Exception ex) {
            throw new SmbException("", ex);
        }
        if (log.isTraceEnabled()) {
            log.trace("LM_COMPATIBILITY=" + transport.getContext().getConfig().getLanManCompatibility());
            log.trace(Hexdump.toHexString(this.macSigningKey, 0, this.macSigningKey.length));
        }
    }

    /**

        }
        if ((server.capabilities & CAP_EXTENDED_SECURITY) != CAP_EXTENDED_SECURITY && server.encryptionKeyLength != 8
                && LM_COMPATIBILITY == 0) {
            throw new SmbException("Unexpected encryption key length: " + server.encryptionKeyLength);
        }

        /* Adjust negotiated values */

        tconHostName = address.getHostName();