code: @Override
      public Iterable<Path> getRootDirectories() {
  
          this.checkClosed();
  
          // Each ShrinkWrapFileSystem has one root directory
          final Path path = new ShrinkWrapPath(ArchivePaths.root(), this);
          final List<Path> paths = new ArrayList<>(1);
          paths.add(path);
          return Collections.unmodifiableList(paths);
      }
docs: {@inheritDoc}
  
  @see java.nio.file.FileSystem#getRootDirectories()