}
        return str;
    }

    @Nonnull
    public static Path getCanonicalPath(Path path) {
        requireNonNull(path, "path");
        try {
            return path.toRealPath();
        } catch (IOException e) {
            return getCanonicalPath(path.getParent()).resolve(path.getFileName());
        }
    }

    @Nonnull

    try (FileSystem fs = Jimfs.newFileSystem(Configuration.unix())) {
      Path root = fs.getRootDirectories().iterator().next();
      assertNull(root.getParent());
      assertNull(root.toRealPath().getParent());
      MoreFiles.createParentDirectories(root); // test that there's no exception
    }
  }

  public void testCreateParentDirectories_relativePath() throws IOException {

            str = str.substring(1, length - 1);
        }

        return str;
    }

    private static Path getCanonicalPath(Path path) {
        try {
            return path.toRealPath();
        } catch (IOException e) {
            return getCanonicalPath(path.getParent()).resolve(path.getFileName());
        }
    }

    static class ExitException extends Exception {