static AutoCloseable of(List<? extends AutoCloseable> l) {
        return () ->
            l.forEach(ac -> {
                try {
                    ac.close();
                } catch (Exception e) {
                    // ...
                }
            });
    }

    public static void main(String[] args) throws Exception {
        List<ByteArrayOutputStream> oss = new ArrayList<>();
        try (AutoCloseable toBeAutoClosed = of(oss)) {
            System.out.println("Hello");
        }
    }