From d3db32b44e8814153586e73354fab739999ca5a5 Mon Sep 17 00:00:00 2001
From: lizhixian <18210040298@163.com>
Date: Fri, 14 Mar 2025 16:58:12 +0800
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---
 .../module/bpm/service/definition/BpmModelServiceImpl.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmModelServiceImpl.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmModelServiceImpl.java
index a441803218..33614814d0 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmModelServiceImpl.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmModelServiceImpl.java
@@ -250,6 +250,10 @@ public class BpmModelServiceImpl implements BpmModelService {
         });
         // 3. 校验第一个用户任务节点的规则类型是否为“审批人自选”，BPMN 设计器，校验第一个用户任务节点，SIMPLE 设计器，第一个节点固定为发起人所以校验第二个用户任务节点
         UserTask firUserTask = CollUtil.get(userTasks, BpmModelTypeEnum.BPMN.getType().equals(type) ? 0 : 1);
+        // 4. 极端情况下无多个用户任务节点，比如发起人-抄送节点
+        if (firUserTask == null){
+            return;
+        }
         Integer candidateStrategy = parseCandidateStrategy(firUserTask);
         if (Objects.equals(candidateStrategy, BpmTaskCandidateStrategyEnum.APPROVE_USER_SELECT.getStrategy())) {
             throw exception(MODEL_DEPLOY_FAIL_FIRST_USER_TASK_CANDIDATE_STRATEGY_ERROR, firUserTask.getName());