resolve the null ponit of orderlist in adjustAmount

src/main/java/com/ctrip/fun/golf/service/order/CourseOrderService.java

@@ -470,10 +470,12 @@ public class CourseOrderService extends AbstractOrderService<CourseOrderBean, Co
 		BigDecimal vipDiscountAmount = new BigDecimal(0);
 		List<Order> orderList = this.getOrderDao().queryOrders(resInfo.getPlayDate(), orderBean.getUid());
 		boolean isFirstOrderToday = true;
-		for (Order order : orderList) {
-			if(order.isPay()&&order.getDiscountAmount().compareTo(BigDecimal.ZERO)>0){
-				isFirstOrderToday = false;
-				break;
+		if(orderList != null){
+			for (Order order : orderList) {
+				if(order.isPay()&&order.getDiscountAmount().compareTo(BigDecimal.ZERO)>0){
+					isFirstOrderToday = false;
+					break;
+				}
 			}
 		}
 		if(isVipMember && isFirstOrderToday){