code: public SmbFile[] listFiles( SmbFilenameFilter filter ) throws SmbException {
          return listFiles( "*", ATTR_DIRECTORY | ATTR_HIDDEN | ATTR_SYSTEM, filter, null );
      }
docs: List the contents of this SMB resource. The list returned will be
  identical to the list returned by the parameterless <code>listFiles()</code>
  method minus files filtered by the specified filename filter.
  
  @param filter a filter to exclude files from the results
  @return An array of <tt>SmbFile</tt> objects
  @throws SmbException