* @param ctx
     * @param u
     */
    public SmbResourceLocatorImpl ( CIFSContext ctx, URL u ) {
        this.ctx = ctx;
        this.url = u;
    }


    /**
     * {@inheritDoc}
     *
     * @see java.lang.Object#clone()
     */
    @Override
    protected SmbResourceLocatorImpl clone () {
        SmbResourceLocatorImpl loc = new SmbResourceLocatorImpl(this.ctx, this.url);
        loc.canon = this.canon;

        return connectHost(loc, host, null);
    }


    /**
     * 
     * @param loc
     * @param host
     * @param referral
     * @return tree handle
     * @throws IOException
     */

    private final SmbResourceLocatorImpl resourceLoc;
    private final SmbTreeConnection treeConnection;

    private final AtomicLong usageCount = new AtomicLong(1);


    /**
     * @param resourceLoc
     * @param treeConnection
     */
    public SmbTreeHandleImpl ( SmbResourceLocatorImpl resourceLoc, SmbTreeConnection treeConnection ) {

            ResourceFilter ff ) throws CIFSException {
        // clone the locator so that the address index is not modified
        SmbResourceLocatorImpl locator = parent.fileLocator.clone();
        CIFSContext tc = parent.getContext();
        URL u = locator.getURL();

        FileEntry[] entries;

    private long size;
    private long sizeExpiration;
    private boolean isExists;

    private CIFSContext transportContext;
    private SmbTreeConnection treeConnection;
    protected final SmbResourceLocatorImpl fileLocator;
    private SmbTreeHandleImpl treeHandle;


    /**
     * Constructs an SmbFile representing a resource on an SMB network such as