public class ShoppingCartProducer
{
   private static AtomicInteger ai = new AtomicInteger();
   
   @Produces
   @SessionScoped
   public ShoppingCart getShoppingCart() {
      System.out.println("getShoppingCart producer");
      
      try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); }
      
      return new ShoppingCart("cart" + ai.incrementAndGet());
   }
}