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kerwin pushed a commit to branch 3.1.8-prepare
in repository https://gitbox.apache.org/repos/asf/dolphinscheduler.git

commit 475cf662292116418d1ba290dd90617e87f3b9ed
Author: ligen <[email protected]>
AuthorDate: Tue Jul 4 16:20:14 2023 +0800

    cherry-pick [Fix-14441] [Bug] [Alarm Instance Manage] Search result list 
error #14444
---
 .../api/service/impl/AlertPluginInstanceServiceImpl.java         | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git 
a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/AlertPluginInstanceServiceImpl.java
 
b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/AlertPluginInstanceServiceImpl.java
index f4173dff47..48eb476aad 100644
--- 
a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/AlertPluginInstanceServiceImpl.java
+++ 
b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/AlertPluginInstanceServiceImpl.java
@@ -229,15 +229,16 @@ public class AlertPluginInstanceServiceImpl extends 
BaseServiceImpl implements A
     }
 
     private List<AlertPluginInstanceVO> 
buildPluginInstanceVOList(List<AlertPluginInstance> alertPluginInstances) {
+        List<AlertPluginInstanceVO> alertPluginInstanceVOS = new ArrayList<>();
         if (CollectionUtils.isEmpty(alertPluginInstances)) {
-            return null;
+            return alertPluginInstanceVOS;
         }
         List<PluginDefine> pluginDefineList = 
pluginDefineMapper.queryAllPluginDefineList();
         if (CollectionUtils.isEmpty(pluginDefineList)) {
-            return null;
+            return alertPluginInstanceVOS;
         }
-        Map<Integer, PluginDefine> pluginDefineMap = 
pluginDefineList.stream().collect(Collectors.toMap(PluginDefine::getId, 
Function.identity()));
-        List<AlertPluginInstanceVO> alertPluginInstanceVOS = new ArrayList<>();
+        Map<Integer, PluginDefine> pluginDefineMap =
+                
pluginDefineList.stream().collect(Collectors.toMap(PluginDefine::getId, 
Function.identity()));
         alertPluginInstances.forEach(alertPluginInstance -> {
             AlertPluginInstanceVO alertPluginInstanceVO = new 
AlertPluginInstanceVO();
 

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