diff --git a/wms_pro/hd/nladmin-system/src/main/java/org/nl/wms/flow_manage/flow/framework/process/nodeType/excess/impl/ClassHandler.java b/wms_pro/hd/nladmin-system/src/main/java/org/nl/wms/flow_manage/flow/framework/process/nodeType/excess/impl/ClassHandler.java
index 8fce173f..a2366d95 100644
--- a/wms_pro/hd/nladmin-system/src/main/java/org/nl/wms/flow_manage/flow/framework/process/nodeType/excess/impl/ClassHandler.java
+++ b/wms_pro/hd/nladmin-system/src/main/java/org/nl/wms/flow_manage/flow/framework/process/nodeType/excess/impl/ClassHandler.java
@@ -36,7 +36,9 @@ public  class ClassHandler extends TypeHandler<JSONObject,ExecutionEntity<JSONOb
         String form_type = flowNode.getForm_type();
         JSONObject auxParam = new JSONObject();
         auxParam.put("form_type",form_type);
-        auxParam.putAll(flowNode.getAuxParam());
+        if (flowNode.getAuxParam()!=null){
+            auxParam.putAll(flowNode.getAuxParam());
+        }
         if (!CollectionUtils.isEmpty(entity.getAuxParam())){
             auxParam.putAll(entity.getAuxParam());
         }