Set optionalValues null if ResultSet has no rows when parsing SQL parameter

kanban-console/src/main/java/com/uas/kanban/model/Parameter.java

@@ -170,7 +170,7 @@ public class Parameter extends BaseEntity {
             tempOptionalValues = optionalValues;
             return;
         }
-        if (!CollectionUtils.isEmpty(optionalValues)) {
+        if (optionalValues != null) {
             this.optionalValues = new ArrayList<>();
             for (Object object : optionalValues) {
                 Value v = new Value();