Java Database Connectivity (JDBC)

First of all, I would like to apologize if i am not in the correct forum. Please kindly inform me if i did so.

I am trying to read some data from a data area in AS400 by using the jt400.jar provided by IBM.

I have successfully retrieve the data and printed it out into a file. But, my application didn't stop and still running. I have to manually stop/kill the process.

Below is the code snippet:

import java.sql.*;
import com.ibm.as400.access.*;

public class AreaData implements Runnable {

   private static LogWriter log;

   private AS400 system;
   private QSYSObjectPathName path;
   private CharacterDataArea charDataArea;

   public AreaData () {

      super();

      try {
            log = new LogWriter("AreaData.log");
      } catch (Exception e) {
            System.out.println("Log create failed.");
            System.out.println(e.getMessage());
      }
   }

   public static void main (String[] arg) {

      try {
            AreaData da = new AreaData();
           Thread thread = new Thread(da);
           thread.start();
      } catch(Exception e) {
           log.write("Thread run failed : " + e.getMessage());
      }
   }

   public void run() {
      try {
           system = new AS400("SystemName", "userid", "password");
           path = new QSYSObjectPathName("library", "object", "DTAARA");
           charDataArea = new CharacterDataArea(system, path.getPath());

           String text = charDataArea.read();
           log.write(text);
       } catch (Exception dataAreaExp) {
           log.write("Data Area : " + dataAreaExp.getMessage());
       }
   }

Any reply is appreciated and thanks in advanced.