Runtime does not work!

Question

Hi, this is urgent. Process didn't run but exit code is ok. could somebody please help me?
my code looks something like this:
public boolean run() {
try {
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("c:\\app.exe" + " " + arg);
int exitCode = p.waitFor();
if (exitCode != 0) {
//print error msg
catch (Exception e) {
e.printStackTrace();
return true;
"c:\\app.exe" exists from previous checks in the code, and exitCode is 0 (normal execution) because there's no error message, but then I know "c:\\cmd" has not been run because it should produce another file ("c:\\app.exe" works properly) and the file doesn't exist after execution. (another indication that app.exe has not been run is that it takes around 10 seconds to complete, but my java program finishes early.)
Could someone please help me find out what the problem can be? The code seems straight foward though. BTW, I'm running on windows XP

Answer 1

try getting the output on your console
or
try
Process p = rt.exec("start c:\\app.exe" + " " + arg);
or
Process p = rt.exec("start cmd /c c:\\app.exe" + " " + arg);