return null;
        }
        return str;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbResourceLocator#getDfsPath()
     */
    @Override
    public String getDfsPath() {
        if (this.dfsReferral == null) {
            return null;
        }

            return null;
        }

        @Override
        public String getServer() {
            return null;
        }

        @Override
        public String getDfsPath() {
            return null;
        }

        @Override
        public int getPort() {
            return 0;
        }

        @Override
        public URL getURL() {
            try {

     * this method will return the referral path to which it maps. Otherwise
     * <code>null</code> is returned.
     *
     * @return URL to the DFS volume
     */
    String getDfsPath();

    /**
     * Returns the transport port number for this SMB resource connection.
     *
     * @return the transport port, if specified
     */
    int getPort();

    /**

     *
     * @return URL to the DFS volume
     * @throws SmbException if an error occurs while resolving the DFS path
     */
    public String getDfsPath() throws SmbException {
        try {
            String path = this.treeConnection.ensureDFSResolved(this.fileLocator).getDfsPath();
            if (path != null && isDirectory()) {
                path += '/';
            }
            return path;

    private boolean isExists;
    private int shareAccess = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
    private SmbComBlankResponse blank_resp = null;
    private DfsReferral dfsReferral = null; // For getDfsPath() and getServerWithDfs()

    /**
     * DFS resolver instance
     */
    protected static Dfs dfs;

    NtlmPasswordAuthentication auth; // Cannot be null
    SmbTree tree = null; // Initially null

        assertEquals(dr, l.getDfsReferral());
        assertEquals("dfs-server", l.getServerWithDfs());
        assertEquals("smb://dfs-server/dfs-share" + l.getUNCPath().replace('\\', '/'), l.getDfsPath());
        assertEquals("dfs-share", l.getShare());

        // Path consumed negative -> coerced to 0
        when(dr.getPathConsumed()).thenReturn(-1);
        String unc2 = l.handleDFSReferral(dr, null);