Process exec() blocking until program terminates.

Question

My basic problem is that I am running a second application (someone elses .exe file) that just outputs broadcast messages it receives, line by line. The program is supposed to run indefinitely, and my app is supposed to parse each line that comes through....The issue I've encountered is that the Buffer seems to block until I close the Java App (which then terminates the exe process as well) and then the Buffer clears out on to the screen. The craziest part of this all, is that I had this working perfectly, and I have no idea what code modification I made that unveiled this issue. Here is the code in quesiton....
Thanks.
-avidan
try {  
     // Start up the stdout application written by DSS. This application is constantly outputting text.....
     String cmdline = "C:\\Program Files\\TheProgram\\ConstantlyOutputing.exe";
     Process DSSProcess = Runtime.getRuntime().exec(cmdline);
     System.out.println("Started DSS App....");     
     // the bufferedreader that processes the DSS application output
     BufferedReader in = new BufferedReader(new InputStreamReader(DSSProcess.getInputStream()));
     // while there is output from the DSS application
     while( (DSSinput = in.readLine()) != null)
     System.out.println("Output: " + DSSinput);
     } // end of for loop for while (in.readline)
     DSSProcess.waitFor();
     in.close();
} catch (Exception e) {
     System.out.println(e.toString());          
} //end catch     

Answer 1

actually. a side problem now occurs. because the
readLine causes the thread to block, i am unable to
continue execution on my other threads...do you have
any ideas Yes, you have to create a new thread, something like this:
class MyThreadToStartProcessReadInputAndWaitEndOfProcess extends Thread {
public void run() {
try {
// Start up the stdout application written by DSS. This application is constantly outputting text.....
String cmdline = "C:\\Program Files\\TheProgram\\ConstantlyOutputing.exe";
Process DSSProcess = Runtime.getRuntime().exec(cmdline);
} catch (Exception e) {
System.out.println(e.toString());
} //end catch
MyThreadToStartProcessReadInputAndWaitEndOfProcess t = new MyThreadToStartProcessReadInputAndWaitEndOfProcess ();
t.start();
...[next operations]
(dont worry, ill give you all the duke
dollars anyway)...Oh yes ! ;-)
Xavier