Thread synchro

Hello!

the question is little stupid, but unfortunality I don't have any experiences in threads.
I'm testing a complex program and call the main-class with:

```
Thread thread = new Thread() {
public void run() {
ApplicationLauncher withArgs = application(Main.class).withArgs("option1=on");
withArgs.start();
}
};
thread.start();
```

When I don't to this in an extra thread the next inputs via robot() won't get executed.
However, I inserted multipled Thread.sleep()-methods, because the program takes a while to start, and without them the input are too early.

All in all I'm unsure if I do aything extremly wrong here - could anyone give me a hint?

Would be very nice!
Thanks

Hans

Start by reviewing the Thread that launches ApplicationLauncher and the subsequent robot() calls, focusing on how startup completion is detected. The issue mentions Thread.sleep() as the current timing workaround; done should be a reliable synchronization approach that prevents inputs from running before the application is ready.

Scritto dal modello di indicizzazione a partire dal testo della issue.