为什么 Java Scanner 会抛出 NoSuchElementException 除非我按路径而不是文件声明我的扫描仪？

Question

最初，我将我的 Scanner 声明为

Scanner in = new Scanner(new File(filename));

我让它读取了一个大约 3000 行的 CSV 文件，当它到达第 362 行时，它给了我一个“没有这样的元素”错误。在我将声明更改为

Scanner in = new Scanner(Paths.get(filename));

但为什么这会有所作为？

这是我的 CSV 文件的第 360-362 行（31在第 362 行阅读后出现“没有这样的元素”错误）：

4,"T Sanchez, A Polyakov, JP Richard, D Efimov",1,29,0,0,0
3,"T Sánchez, JA Moreno, JA Peralta",4,30,0,0,0
3,"FAO Ricardez, T Sánchez, JA Moreno",5,31,0,0,0

这是我的代码：

String filename = "before.csv";
Scanner in = new Scanner(new File(filename)); // changed to Paths.get(filename)
PrintStream out = new PrintStream(new File("after.csv"));
        
out.println(in.nextLine());

String DELIMITER = ",";
in.useDelimiter(DELIMITER);

while(in.hasNext()) {
    int author_count = in.nextInt();
    out.print(author_count + ",");
    
    for(int i = 0; i < author_count; i++) {
        String cur_author = in.next();
        ...
    }
            
    out.print("<bitmask>" + ",");
    
    for(int i = 0; i < 4; i++) {
        int a = in.nextInt(); // where the error occurred
        out.print(a + ",");
    }
    out.println(in.nextLine().replace(",", ""));
}
        
in.close();
out.close();

谢谢！