🚀 go-pugleaf

Is this code segment from a thread ?
I have had problems with BufferedReader and PrintWriter Streams in a
thread.
Joe Ryan

Matthew Hyne wrote:

> I have a peace of code that executes an application and places it's
> STDOUT and STDERR into a Java Frame.
>
> The problem is, that after executing exec(application) I need to wait
> for it to finish before I read the buffer but waitFor() never seems to
> return.
>
> If I replay waitFor() with a delay the program works for most
> applications - BUT WHY doesn't waitFor() work !!!
>
> I have placed an except of the code below
>
> Process process = Runtime.getRuntime().exec(command_string);
>
> // Capture output
> BufferedReader proc_output =
>   new BufferedReader(new InputStreamReader(
>   new BufferedInputStream(process.getInputStream())));
>
> BufferedReader proc_error =
>   new BufferedReader(new InputStreamReader(
>   new BufferedInputStream(process.getErrorStream())));
>
> process.waitFor();
>
> // For testing we use the below to simulate above
> //Thread.currentThread().sleep(2000);
>
> while (proc_output.ready())
>   textout.addLine(proc_output.readLine()+"\n");
>
> while (proc_error.ready())
>   textout.addLine(proc_error.readLine()+"\n");