Execute Linux statements through java in the server

Process process=Runtime.getRuntime().exec("ls ./");

I wrote the code like this. Note that the parameter in exec is new String[]{"sh","-c",com}

public static void main(String[] args) {
    
    
        String com = "tar -zcvf -834_Contentviewlog.txt | openssl des3 -salt -k " +
                "dTVu98DF | dd of=Contentviewlog.txt.des3";
        String com2 = "ps -ef";
        //execute(com);
        String com3 = "tar -zcvf 834_Contentviewlog.txt.tar.gz /834_Contentviewlog.txt";
        InputStream in = null;
        try {
    
    
            Process pro = Runtime.getRuntime().exec(new String[]{
    
    "sh","-c",com3});
            pro.waitFor();
            in = pro.getInputStream();
            BufferedReader read = new BufferedReader(new InputStreamReader(in));
            String result = read.readLine();
            System.out.println("INFO:"+result);
        } catch (Exception e) {
    
    
            e.printStackTrace();
        }
    }

The statement without the pipe symbol can be executed successfully, so I didn't go into it, so I will talk about it first.