},
            executor);
    assertFinallyFailsWithException(closingFuture);
    waitUntilClosed(closingFuture);
    assertClosed(closeable1, closeable2);
  }

  public void testAutoCloseable() throws Exception {
    AutoCloseable autoCloseable = closeable1::close;
    ClosingFuture<String> closingFuture =
        ClosingFuture.submit(
            new ClosingCallable<String>() {
              @Override