@CanIgnoreReturnValue
  public SymbolicLink createSymbolicLink(
      JimfsPath path, JimfsPath target, FileAttribute<?>... attrs) throws IOException {
    if (!store.supportsFeature(Feature.SYMBOLIC_LINKS)) {
      throw new UnsupportedOperationException();
    }
    return (SymbolicLink) createFile(path, store.symbolicLinkCreator(target), true, attrs);
  }
Creates a new symbolic link at the given path with the given target. The given attributes will
be set on the new file if possible.
jimfs/src/main/java/com/google/common/jimfs/FileSystemView.java