Comment empty constructors

prototype/src/main/java/org/hso/ecommerce/entities/booking/BookingReason.java

@@ -28,11 +28,10 @@ public class BookingReason {
     @ManyToOne(optional = true)
     public SupplierOrder supplierOrder;
 
+    // Default Constructor is needed for construction by ORM
     public BookingReason() {
     }
 
-    ;
-
     public BookingReason(CustomerOrder order) {
         this.customerOrder = order;
     }

prototype/src/main/java/org/hso/ecommerce/entities/warehouse/WarehouseBookingReason.java

@@ -24,6 +24,7 @@ public class WarehouseBookingReason {
 
     public boolean isManuel;
 
+    // Default Constructor is needed for construction by ORM
     public WarehouseBookingReason() {
     }