Problems with calling a Bat file in java...

Question

i'm having some issues when i try to call my bat file within java...
here is the code
Runtime.getRuntime().exec("cmd.exe C:\\dev\\CMIC\\components\\client\\bin\\startup.bat");
it starts up the bat file but it seems to only execute the first line in the bat, then it shuts it down... i dont get it. cuz if i call that bat from another bat it works fine.. if i click on it, it works fine why would java have a problem with it?

Answer 1

After doing some searching around... this is what i came up with.. but i still get the same results.. the dos screen pops up and then poof.. its gone..
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
public class test {
     public static void main(String Args[]){
     System.out.println("About to try and EXecute the Bat");
               //String retVal = ExecWindows( "cmd.exe C:\\dev\\CMIC\\components\\client\\bin\\startup.bat" );
               String retVal = ExecWindows( "cmd.exe /C C:\\dev\\CMIC\\components\\client\\bin\\startup.bat" );
               System.out.println(retVal);     
     private static String ExecWindows(String cmd) {
          try {
               ByteArrayOutputStream bos = new ByteArrayOutputStream(100 * 1024);
               Runtime rt = Runtime.getRuntime();
               Process proc = rt.exec(cmd);
               StreamGobbler errorGobbler =
                    new StreamGobbler(proc.getErrorStream(), "ERROR");
               StreamGobbler outputGobbler =
                    new StreamGobbler(proc.getInputStream(), "OUTPUT", bos);
               errorGobbler.start();
               outputGobbler.start();
               int exitVal = proc.waitFor();
               //if ( DEBUG ) System.out.println( "cmd: '" + cmd + "' -> " + exitVal );
               errorGobbler.join();
               outputGobbler.join();
               //if (DEBUG && exitVal != 0)
               //     System.out.println(" ExitValue: " + exitVal);
               if (exitVal != 0)
                    return "";
               bos.flush();
               String output = bos.toString();
               bos.close();
               return output;
          } catch (Throwable t) {
               return "";
     } /* * Handle standard I/O streams */
} // end of class
     class StreamGobbler extends Thread {
          InputStream is;
          String type;
          OutputStream os;
          StreamGobbler(InputStream is, String type) {
               this(is, type, null);
          StreamGobbler(InputStream is, String type, OutputStream redirect) {
               this.is = is;
               this.type = type;
               this.os = redirect;
          public void run() {
               try {
                    PrintWriter pw = null;
                    if (os != null)
                         pw = new PrintWriter(os);
                    InputStreamReader isr = new InputStreamReader(is);
                    BufferedReader br = new BufferedReader(isr);
                    String line = null;
                    while ((line = br.readLine()) != null) {
                         //System.out.println( "{" + line + "}" );
                         if (pw != null) {
                              pw.println(line);
                         } else {
                              System.out.println(type + ">" + line);
                    if (pw != null)
                         pw.flush();
               } catch (IOException ioe) {
                    ioe.printStackTrace();
     }