* implementations.
     * 
     * Changes in between these calls (as long as the file is open) are buffered by the server, so iteratively calling
     * this method should provide all changes (size of that buffer can be adjusted through
     * {@link jcifs.Configuration#getNotifyBufferSize()}).

    private void reset() {
        url = null;
        sae = null;
    }

/**
Set the default <tt>NtlmAuthenticator</tt>. Once the default authenticator is set it cannot be changed. Calling this metho again will have no effect.
 */

    public synchronized static void setDefault( NtlmAuthenticator a ) {
        if( auth != null ) {
            return;
        }
        auth = a;
    }

                    case NOT_LISTENING_CALLED:
                        result += "Not listening on called name";
                        break;
                    case NOT_LISTENING_CALLING:
                        result += "Not listening for calling name";
                        break;
                    case CALLED_NOT_PRESENT:
                        result += "Called name not present";
                        break;

            if( andxOffset == 0 ) { /* Snap server workaround */
                andxCommand = (byte)0xFF;
            }

            /*
             * no point in calling readParameterWordsWireFormat if there are no more
             * parameter words. besides, win98 doesn't return "OptionalSupport" field
             */
 
            if( wordCount > 2 ) {

                                /* Apparently once a successfull NTLMSSP login occurs, the
                                 * server will return "Access denied" even if a logoff is
                                 * sent. Unfortunately calling disconnect() doesn't always
                                 * actually shutdown the connection before other threads
                                 * have committed themselves (e.g. InterruptTest example).

 * ---------------------------------------------
 * JMORRIS2        <00>  UNIQUE      Registered
 * BILLING-NY      <00>  GROUP       Registered
 * JMORRIS2        <03>  UNIQUE      Registered
 * JMORRIS2        <20>  UNIQUE      Registered
 * BILLING-NY      <1E>  GROUP       Registered
 * JMORRIS         <03>  UNIQUE      Registered
 * 
 * MAC Address = 00-B0-34-21-FA-3B

     * aka TRUNCATE_EXISTING
     */

    static final int FILE_OVERWRITE    = 0x4;

    /* Open the file and overwrite it's contents or create it if it does not exist
     * aka CREATE_ALWAYS (according to the wire when calling CreateFile)
     */

    static final int FILE_OVERWRITE_IF = 0x5;


    // create options
    static final int FILE_WRITE_THROUGH           = 0x00000002;

import jcifs.CIFSContext;
import jcifs.DfsReferralData;
import jcifs.DfsResolver;
import jcifs.SmbTransport;
import jcifs.internal.dfs.DfsReferralDataImpl;
import jcifs.internal.dfs.DfsReferralDataInternal;


/**
 * Caching DFS resolver implementation
 * 
 * @internal
 */
public class DfsImpl implements DfsResolver {

    private static final DfsReferralDataImpl NEGATIVE_ENTRY = new DfsReferralDataImpl();

    /**
     * 
     */
    public static final int SMB2_SHAREFLAG_MANUAL_CACHING = 0x0;
    /**
     * 
     */
    public static final int SMB2_SHAREFLAG_AUTO_CACHING = 0x10;
    /**
     * 
     */
    public static final int SMB2_SHAREFLAG_VDO_CACHING = 0x20;

    /**
     * 
     */
    public static final int SMB2_SHAREFLAG_DFS = 0x1;
    /**
     * 
     */

                }
                if ( ( !foundKerberos || this.forceFallback ) && this.canFallback && tc.getConfig().isAllowNTLMFallback() ) {
                    log.debug("Falling back to NTLM authentication");
                    return super.createContext(tc, targetDomain, host, initialToken, doSigning);
                }
                else if ( !foundKerberos ) {