public void init(boolean exitOnClose) {
// set up and show main window
Locale.setDefault( Locale.US );
CompanyRegistry registry = new CompanyRegistry();
BrokerWindow window = new BrokerWindow( registry.getCompanies(), exitOnClose );
window.show();
//Thread.sleep( 10000 );
Broker broker = new Broker( window, registry );
TimerService clock = new JDKTimerService(1);
StockTickPersister source = new StockTickPersister();