class Quit implements Callable<Void> {
	@CommandLine.Option(names = { "--force" },  description = "Immediately/forcefully exit.")
	public boolean force;

	@Override
	public Void call() throws Exception {<FILL_FUNCTION_BODY>}
}

		// Hard exit
		if (force)
			System.exit(0);
		// Handled externally
		return null;
	
<no_super_class>