Help: Executing perl script from java

Hi,

Im trying to execute a perl script with parameters from my java code. given below is the first few lines.

Code :

---

 try
            {
            p = Runtime.getRuntime().exec("perl E:\\tools\\Rouge1551\\ROUGE-1.5.5.pl -n 4 -w 1.2 -m -2 4 -u -c 95 -r 1000 -f A -p 0.5 -t 0 -a E:/tools/Rouge1551/rougejk_A1.in");
 
            BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line="";
 
            while ((line = input.readLine()) != null) {
                            System.out.println(line);
           }              
           p.waitFor();
           }
            catch(Exception e)
            {
                System.out.println("Exception: "+ e.toString());
            }
            finally {
                        if (p != null) {
                        close(p.getInputStream());
                        close(p.getErrorStream());
                        close(p.getOutputStream());
                        p.destroy();}
                    }

---

The program does not print anything, since p.getInputStream returns null. The command works when i run in command prompt.
please help.

thanks
jessie

Try using a String array vs a String in the exec() method.
Also read and print the error stream to see if there are any error messages.

thanks a lot. it was not working because there were some warnings. i corrected it and it works.!
great.!