@Test
    public void resolveRootNotExist () throws CIFSException, URISyntaxException {
        DfsReferralData ref = doResolve("\\doesnotexist\\", null, false);
        assertNull(ref);

        ref = doResolve("\\deep\\doesnotexist\\", null, false);
        assertNull(ref);
    }


    @Test
    public void resolveNonDfs () throws CIFSException {
        CIFSContext context = getContext();

        return this.pipe;
    }


    @Override
    public SmbTreeHandleImpl ensureTreeConnected () throws CIFSException {
        if ( this.treeHandle == null ) {
            // extra acquire to keep the tree alive
            this.treeHandle = this.pipe.ensureTreeConnected();
        }
        return this.treeHandle.acquire();
    }


    public String getUncPath () {
        return this.uncPath;

    /**
     * 
     */
    public static final int NEGATIVE_SESSION_RESPONSE = 0x83;
    static final int SESSION_RETARGET_RESPONSE = 0x84;
    static final int SESSION_KEEP_ALIVE = 0x85;

    static final int MAX_MESSAGE_SIZE = 0x0001FFFF;
    static final int HEADER_LENGTH = 4;


    static void writeInt2 ( int val, byte[] dst, int dstIndex ) {

        return this.handle != null && this.handle.isValid();
    }


    protected synchronized SmbFileHandleImpl ensureOpen () throws CIFSException {
        if ( !isOpen() ) {
            // one extra acquire to keep this open till the stream is released
            this.handle = this.file.openUnshared(this.openFlags, this.access, this.sharing, SmbConstants.ATTR_NORMAL, 0).acquire();
            if ( this.append ) {

     * @return
     * @throws SmbException
     */
    synchronized SmbFileHandleImpl ensureOpen () throws CIFSException {
        if ( this.handle == null || !this.handle.isValid() ) {
            // one extra acquire to keep this open till the stream is released
            if ( this.file instanceof SmbNamedPipe ) {
                this.handle = this.file.openUnshared(
                    SmbConstants.O_EXCL,

                this.dcListExpiration = now + this.netbiosCacheTimeout * 1000L;
                if ( list != null && list.length > 0 ) {
                    this.dcList = list;
                }
                else { /* keep using the old list */
                    this.dcListExpiration = now + 1000 * 60 * 15; /* 15 min */
                    log.warn("Failed to retrieve DC list from WINS");
                }
            }

                    dc_list_expiration = now + CACHE_POLICY * 1000L;
                    if (list != null && list.length > 0) {
                        dc_list = list;
                    } else { /* keep using the old list */
                        dc_list_expiration = now + 1000 * 60 * 15; /* 15 min */
                        if (SmbTransport.log.level >= 2) {

                        }

                        if ( dfd == null || !dfd.isValid() ) {
                            // don't reopen the file for every round if it's not necessary, keep the lock
                            dfd = openCopyTargetFile(dest, src.getAttributes(), !write);
                        }

    public static final int POSITIVE_SESSION_RESPONSE = 0x82; 
    public static final int NEGATIVE_SESSION_RESPONSE = 0x83; 
    static final int SESSION_RETARGET_RESPONSE = 0x84; 
    static final int SESSION_KEEP_ALIVE = 0x85; 

    static final int MAX_MESSAGE_SIZE = 0x0001FFFF;
    static final int HEADER_LENGTH = 4;

    static void writeInt2( int val, byte[] dst, int dstIndex ) {

     */
    synchronized SmbFileHandleImpl ensureOpen () throws CIFSException {
        // ensure file is open
        if ( this.handle == null || !this.handle.isValid() ) {
            // one extra acquire to keep this open till the stream is released
            this.handle = this.file.openUnshared(this.openFlags, this.access, this.sharing, SmbConstants.ATTR_NORMAL, this.options).acquire();
            return this.handle;
        }