Java:尝试从文本文件读取时获取FileNotFoundException，即使该文件存在

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class FileReadExample {
    public static void main(String[] args) {
        File file = new File("path/to/file.txt");
        try {
            BufferedReader reader = new BufferedReader(new FileReader(file));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
            reader.close();
        } catch (FileNotFoundException e) {
            System.out.println("文件不存在！");
            e.printStackTrace();
        } catch (IOException e) {
            System.out.println("读取文件时发生错误！");
            e.printStackTrace();
        }
    }
}