Index: ssts-invoice/src/main/java/com/forgon/disinfectsystem/invoicemanager/service/InvoiceManagerImpl.java
===================================================================
diff -u -r35254 -r35361
--- ssts-invoice/src/main/java/com/forgon/disinfectsystem/invoicemanager/service/InvoiceManagerImpl.java	(.../InvoiceManagerImpl.java)	(revision 35254)
+++ ssts-invoice/src/main/java/com/forgon/disinfectsystem/invoicemanager/service/InvoiceManagerImpl.java	(.../InvoiceManagerImpl.java)	(revision 35361)
@@ -3391,6 +3391,9 @@
 			Long dgId = entry.getKey();
 			Integer sendAmount = entry.getValue();
 			Long stockAmount = dgIdToDisposableGoodsStockMap.get(entry.getKey()).getAmount();
+			if(stockAmount == null){
+				stockAmount = 0L;
+			}
 			if(sendAmount > stockAmount){
 				throw new SystemException(String.format("%s的发货总数量为%s,超过了库存总数量%s", idToDisposableGoodsMap.get(dgId).getShowName(),sendAmount,stockAmount));
 			}