From 6b095f1c68b546c9f0ce72dd91b9c1d2792c60be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=81=BC=E5=8D=8E?=
 <43363120+BurningCN@users.noreply.github.com>
Date: Mon, 15 Aug 2022 09:45:35 +0800
Subject: [PATCH] Fix npe (#10457)

---
 .../support/zookeeper/ZookeeperDynamicConfiguration.java        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dubbo-configcenter/dubbo-configcenter-zookeeper/src/main/java/org/apache/dubbo/configcenter/support/zookeeper/ZookeeperDynamicConfiguration.java b/dubbo-configcenter/dubbo-configcenter-zookeeper/src/main/java/org/apache/dubbo/configcenter/support/zookeeper/ZookeeperDynamicConfiguration.java
index b427709dc8..17daabb7b6 100644
--- a/dubbo-configcenter/dubbo-configcenter-zookeeper/src/main/java/org/apache/dubbo/configcenter/support/zookeeper/ZookeeperDynamicConfiguration.java
+++ b/dubbo-configcenter/dubbo-configcenter-zookeeper/src/main/java/org/apache/dubbo/configcenter/support/zookeeper/ZookeeperDynamicConfiguration.java
@@ -146,7 +146,7 @@ public class ZookeeperDynamicConfiguration extends TreePathDynamicConfiguration
     @Override
     protected void doRemoveListener(String pathKey, ConfigurationListener listener) {
         ZookeeperDataListener zookeeperDataListener = cacheListener.removeListener(pathKey, listener);
-        if (CollectionUtils.isEmpty(zookeeperDataListener.getListeners())) {
+        if (zookeeperDataListener != null && CollectionUtils.isEmpty(zookeeperDataListener.getListeners())) {
             zkClient.removeDataListener(pathKey, zookeeperDataListener);
         }
     }