diff --git a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/util/ListCommonUtil.java b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/util/ListCommonUtil.java
index 3f92b3ff..2da4c29f 100644
--- a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/util/ListCommonUtil.java
+++ b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/util/ListCommonUtil.java
@@ -27,7 +27,7 @@ import java.util.stream.Collectors;
      * @return
      */
     public static <T, R> Map<R, T> listToMap(List<T> list, Function<T, R> function) {
-        if (list.size() <= 0) {
+        if (list==null || list.size() <= 0) {
             return new HashMap<R, T>(1);
         }
         return list.stream().collect(Collectors.toMap(function, Function.identity(), (k1, k2) -> k1));