From 355eed83f38e85af587d7d1022dab7221555fb07 Mon Sep 17 00:00:00 2001
From: wangli <274027703@qq.com>
Date: Tue, 25 Jun 2024 11:48:31 +0800
Subject: [PATCH] =?UTF-8?q?update(REQ-2516)=20-=20=E5=A4=84=E7=90=86?=
 =?UTF-8?q?=E4=B8=80=E4=BA=9B=20NPE?=
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---
 .../core/service/support/FlowNodeForecastService.java        | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/support/FlowNodeForecastService.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/support/FlowNodeForecastService.java
index 727eda0ff..96ebf4e17 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/support/FlowNodeForecastService.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/support/FlowNodeForecastService.java
@@ -27,6 +27,7 @@ import java.util.Objects;
 import java.util.Optional;
 
 import static cn.axzo.workflow.core.common.code.BpmnInstanceRespCode.PROCESS_INSTANCE_NOT_EXISTS;
+import static cn.axzo.workflow.core.common.code.BpmnInstanceRespCode.RUNNING_INSTANCE_ONLY_FORECAST;
 
 
 /**
@@ -123,7 +124,9 @@ public class FlowNodeForecastService implements InitializingBean {
                     //                    .includeProcessVariables()
                     .singleResult();
         }
-
+        if (Objects.isNull(instance)) {
+            throw new WorkflowEngineException(RUNNING_INSTANCE_ONLY_FORECAST);
+        }
         BpmnModel bpmnModel = repositoryService.getBpmnModel(instance.getProcessDefinitionId());
 
         // 保持推测出来的节点执行顺序的容器