关于Stream被关闭的Java 8 Stream抛出异常

Question

我在下面的代码中抛出了stream has already been operated upon or closed

    private static void readDataInputFile(String fileName) throws IOException {
    List<String> rowList = new ArrayList<>();

    try (Stream<String> inputStream = Files.lines(Paths.get(fileName))) {
        Optional<String> headerOptional = inputStream.findFirst();
        String header = headerOptional.get();
        int headerColumnCount = header.split(Constants.SEPERATOR_ESCAPED).length;
        rowList = inputStream.collect(Collectors.toList());
        for (String string : rowList) {
            System.out.println(string);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

我知道我们无法重复使用该流。我在inputStream.findFirst();以及inputStream.collect(Collectors.toList())处使用了流。

在这种情况下我该怎么办？我应该创建另一个流还是有办法复制流？