yudao-module-bpm/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/BpmProcessDefinitionController.java
@@ -122,8 +122,10 @@
        ProcessDefinition processDefinition = id != null ? processDefinitionService.getProcessDefinition(id)
                : processDefinitionService.getActiveProcessDefinition(key);
        if (processDefinition == null) {
            // 编号不存在时返回 null,与「key 查不到」保持一致,避免 Flowable 抛异常变成 500
            return success(null);
        }
        // 编号不存在时上面的查询会返回 null,这里直接返回 null,避免 NPE 变成 500
        BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(processDefinition.getId());
        BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(processDefinition.getId());
        return success(BpmProcessDefinitionConvert.INSTANCE.buildProcessDefinition(