在Java中解析制表符分隔的文本文件时出现错误ArrayIndexOutOfBoundsException

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class FileParser {
    public static void main(String[] args) {
        String filePath = "path/to/your/file.txt";
        int expectedFieldCount = 5; // 根据实际情况修改
        try (BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(filePath), "UTF-8"))) {
            String line;
            while ((line = br.readLine()) != null) {
                if (line.trim().isEmpty() || line.startsWith("#")) {
                    continue; // Skip empty lines and comment lines
                }
                String[] fields = line.split("\t");
                if (fields.length < expectedFieldCount) {
                    System.err.println("Invalid line: " + line);
                    continue;
                }
                // Process the fields
                for (String field : fields) {
                    System.out.println(field);
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}