Problem executing command line program

Question

Hi I have a tuxedo command line app in Solaris 2.6. I was able to execute the program from unix prompt however when I try to do it from JAVA program, it does not work.
I have to execute from command line as follows
$ud32<SPACE>-U<SPACE>login<nl>
SRVCNM<TAB>CB_EXESUB<nl>
CLFY_SUB<TAB>ExeternalMsg<nl>
EQUIP_ID<TAB>1<nl>
<nl>
during command line execution from second line on you will not get the prompt. After entering a balnk line the program will execute and provide the output.
I was aslo able to execute the program by putting the last 4 lines in a file(say test.bat) and executing by issuing following command at the unix prompt
$ud32 -U sa<test.bat
My java program as follows.
import java.io.*;
public class udexec {
public static void main(String args[]) {
try{
Runtime rt = Runtime.getRuntime();
System.out.println("Before");
Process prcs = rt.exec("ud32 -U sa");
System.out.println("After: " + prcs);
InputStreamReader isr = new InputStreamReader(prcs.getInputStream());
PrintWriter out = new PrintWriter(prcs.getOutputStream());
out.println("SRVCNM CB_EXESUB");
out.println("CLFY_SUB ExternalMsg");
out.println("EQUIPID 1");
out.println("");
int ret = isr.read();
String line;
System.out.println("Before Print");
System.out.println(ret);
catch (Exception e) { System.out.println(e); }
Any help will be greatly appreciated.
Thank You
Raju

Answer 1

Hmm, maybe you should also give additional Excape Characters to the Process (so adding \t where you have written <TAB>, or adding \r to the lines).