* @return active tree handle
     * @throws CIFSException if connection fails
     *
     */
    synchronized SmbTreeHandleImpl ensureTreeConnected() throws CIFSException {
        // Optimization: Check connection validity more efficiently
        if (this.treeHandle != null && this.treeHandle.isConnected()) {
            // Connection is still valid - reuse it

     */

    @Override
    public String toString() {
        return Strings.maskSecretValue(url.toString());
    }

    /* URLConnection implementation */
    /**
     * This URLConnection method just returns the result of {@code length()}.
     *
     * @return the length of this file or 0 if it refers to a directory
     */

    @Override