From 5961683f5b4996f7ebb022e1a03d1348f2ddcddc Mon Sep 17 00:00:00 2001
From: Albumen Kevin <jhq0812@gmail.com>
Date: Thu, 11 Aug 2022 11:55:53 +0800
Subject: [PATCH] Fix nacos removeServiceAppMappingListener (#10439)

---
 .../apache/dubbo/metadata/store/nacos/NacosMetadataReport.java  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dubbo-metadata/dubbo-metadata-report-nacos/src/main/java/org/apache/dubbo/metadata/store/nacos/NacosMetadataReport.java b/dubbo-metadata/dubbo-metadata-report-nacos/src/main/java/org/apache/dubbo/metadata/store/nacos/NacosMetadataReport.java
index 4ed5ca71bf..677f0750c4 100644
--- a/dubbo-metadata/dubbo-metadata-report-nacos/src/main/java/org/apache/dubbo/metadata/store/nacos/NacosMetadataReport.java
+++ b/dubbo-metadata/dubbo-metadata-report-nacos/src/main/java/org/apache/dubbo/metadata/store/nacos/NacosMetadataReport.java
@@ -255,6 +255,8 @@ public class NacosMetadataReport extends AbstractMetadataReport {
 
     @Override
     public void removeServiceAppMappingListener(String serviceKey, MappingListener listener) {
+        String group = DEFAULT_MAPPING_GROUP;
+
         MappingDataListener mappingDataListener = casListenerMap.get(buildListenerKey(serviceKey, group));
         if (null != mappingDataListener) {
             removeCasServiceMappingListener(serviceKey, group, listener);