* 
     * @return cause
     */
    @Deprecated
    public Throwable getRootCause () {
        return this.getCause();
    }


    /**
     * @param e
     * @return a CIFS exception wrapped in an SmbException
     */
    static SmbException wrap ( CIFSException e ) {
        if ( e instanceof SmbException ) {
            return (SmbException) e;
        }