}
        }

        return ntlm;
    }

    private synchronized NtlmChallenge getChallengeForDomain(final String domain) throws UnknownHostException, ServletException {
        if (domain == null) {
            throw new ServletException("A domain was not specified");
        }
        final long now = System.currentTimeMillis();
        int retry = 1;

        do {

import jcifs.smb.NtlmPasswordAuthenticator;

// Create context with credentials
CIFSContext context = new BaseContext(new jcifs.config.PropertyConfiguration());
NtlmPasswordAuthenticator auth = new NtlmPasswordAuthenticator("domain", "username", "password");
CIFSContext authContext = context.withCredentials(auth);

// Use authenticated context
try (SmbFile file = new SmbFile("smb://server/share/", authContext)) {

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

     *            The hostname of the server that should be queried. For maximum efficiency this should be the hostname
     *            of a domain controller however a member server will work as well and a domain controller may not
     *            return names for SIDs corresponding to local accounts for which the domain controller is not an
     *            authority.
     * @param sids

     * domain, username, and password. Parameters that are {@code null}
     * will be substituted with {@code jcifs.smb.client.domain},
     * {@code jcifs.smb.client.username}, {@code jcifs.smb.client.password}
     * property values.
     *
     * @param tc
     *            context to use
     * @param domain the authentication domain
     * @param username the username to authenticate with

        final String domain = tc.getConfig().getDefaultDomain();
        byte[] ti = TARGET_INFO_CACHE.get(domain);
        if (ti != null) {
            return ti;
        }

        ti = makeTargetInfo(tc, domain);
        TARGET_INFO_CACHE.put(domain, ti);
        return ti;
    }

    /**
     * @param domain
     * @param domainLength
     * @param server
     * @return

     */
    protected NtlmServlet() {
        super();
    }

    /** The default domain for NTLM authentication */
    private String defaultDomain;

    /** The domain controller for authentication */
    private String domainController;

    /** Flag to enable load balancing across domain controllers */
    private boolean loadBalance;

    /** Flag to enable basic authentication */

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

     *
     */
    private static final long serialVersionUID = -4686770199446333333L;

    /** The default domain for NTLM authentication */
    private String defaultDomain;

    /** The domain controller for authentication */
    private String domainController;

    /** Flag to enable load balancing across domain controllers */
    private boolean loadBalance;

    /** Flag to enable basic authentication */

     * @param serviceName
     *            JAAS configuration name
     * @param domain the domain for authentication
     * @param username the username for authentication
     * @param password the password for authentication
     */
    public JAASAuthenticator(String serviceName, String domain, String username, String password) {
        super(null, domain, username, password);
        this.serviceName = serviceName;
    }

    /**