Runtime.exec(), linux and redirection

Question

Hi all,
I need to exec an external command from java under linux, and have both the stderr and stdout of the command redirected to the
stdout, so that I can capture them and keep them in synch in the java app. I've tried many combination, but I'm unable to make
this work: only the standard output shows up. Note that I can make this work under windows.
A java code example and a small C example to simulate the program to be invoked follows. Running the java program should show both the "messsage" and the "error" lines, but it shows only the "message" ones.
Note that removing the apparently redoundant ">&1" doesn't solve the problem. I got a suggestion to modify the exec invocation into
String[] cmd = { "/bin/sh", "-c", "./test1 >&1 2>&1" };
  Process p = Runtime.getRuntime().exec(cmd); but that didn't work eiter.
Can anyone tell me where I'm wrong?
Roberto
======================= class test.java ================================================
import java.io.*;
public class test {
  public static void main(String args[]) {
    new test();
  public test() {
    try {
      Process p = Runtime.getRuntime().exec("/bin/sh -c ./test1 >&1 2>&1")
      InputStream inStr = p.getInputStream();
      BufferedReader inBr = new BufferedReader(new InputStreamReader(inStr));
      String line;
      while((line = inBr.readLine()) != null) {
        System.out.println("line = "+line);
      try {
        p.waitFor();
      } catch(InterruptedException ex) {}
      System.out.println("process terminated with code = "+p.exitValue());
      inBr.close();
    }catch(IOException ex) {
      System.out.println("IOException : "+ex.getMessage ());
}======================= end of class test.java ================================================
======================= test1 program ================================================
#include <stdio.h>
int main(int argc, char **argv) {
  int i;
  for(i=0; i<100; i++) {
    fprintf(stdout, "message %d\n", i);
    fprintf(stderr, "error %d\n", i);
}======================= end of test1 program ================================================

Answer 1

Redirection dosen't work with Runtime.exec(), it really dosen't have sense. Do the foolowing:
String[] cmd = { "/bin/sh", "-c", "./test1" };
Process p = Runtime.getRuntime().exec(cmd);
OutputStream out = p.getOutputStream();
//now wrte out to the file, formating as you want
What is doene obove is execute your command, without redirection, and the obtaininh the output stream of the created process. This is "the place" where the process will write everithig it'll would write in the console if executed there.
The handle the OutputStream as any other OutputStream, and write it to the HD or do whtever you want.
Abraham.