无法从Java执行Linux命令

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

public class ExecuteLinuxCommand {
    public static void main(String[] args) {
        try {
            // 创建Runtime对象
            Runtime runtime = Runtime.getRuntime();
            
            // 执行命令
            Process process = runtime.exec("ls -l");
            
            // 获取命令执行的输出流
            InputStream inputStream = process.getInputStream();
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
            
            // 读取输出流
            String line;
            while ((line = bufferedReader.readLine()) != null) {
                System.out.println(line);
            }
            
            // 等待命令执行完成
            int exitCode = process.waitFor();
            System.out.println("Exit Code: " + exitCode);
            
            // 关闭流
            bufferedReader.close();
            inputStream.close();
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}