Robots don't quit

[BradAMiller]

This is the code in the RobotBase base class for Iterative and SimpleRobot. When an exception happens that isn't caught, it goes up the stack frame (from one method to the one that called it) looking for a handler. In RobotBase there is a handler for any uncaught exceptions and it prints "Robots don't quit".

    protected final void startApp() throws MIDletStateChangeException {
        boolean errorOnExit = false;

        Watchdog.getInstance().setExpiration(0.1);
        Watchdog.getInstance().setEnabled(false);
        FRCControl.observeUserProgramStarting();
        UsageReporting.report(UsageReporting.kResourceType_Language, UsageReporting.kLanguage_Java);

        try {
            this.startCompetition();
        } catch (Throwable t) {
            t.printStackTrace();
            errorOnExit = true;
        } finally {
            // startCompetition never returns unless exception occurs....
            System.err.println("WARNING: Robots don't quit!");
            if (errorOnExit) {
                System.err.println("---> The startCompetition() method (or methods called by it) should have handled the exception above.");
            } else {
                System.err.println("---> Unexpected return from startCompetition() method.");
            }
        }
    }