Runtime is not working

Question

Hi all,
I am trying to run SQLLDR command using java. i am using Runtime class to run the command. but the command is not executing. After executing the system get hanged. please suggest me to solve this.
My code is,
Runtime rt = Runtime.getRuntime();
String s="SQLLDR sam/sam@samdev control=C:\\SAP_HR\\sample.ctl";
               System.out.println("got the SQL Command "+s);
               Process proc = rt.exec(s);
               // Referred in the NET               
               InputStream stderr = proc.getErrorStream();
     InputStreamReader isr = new InputStreamReader(stderr);
     BufferedReader br = new BufferedReader(isr);
     String line = null;
     System.out.println("<ERROR>"); ---------------------> it is getting hanged at this end.
     while ( (line = br.readLine()) != null)
     System.out.println(line);
     System.out.println("</ERROR>");           
               int exitVal = proc.waitFor();
               System.out.println("Finished Loading Data using SQLLDR");
               }catch(Throwable t){
                    t.printStackTrace();
               }

Answer 1

Visit the link, read the article, understand it, and apply what you understand. The code you posted does not use any of the idioms which the article explains, and it might actually work if it did. At least it would be easier to debug.