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

  public void testSubmitAsync() throws Exception {
    ClosingFuture<TestCloseable> closingFuture =
        ClosingFuture.submitAsync(
            new AsyncClosingCallable<TestCloseable>() {
              @Override