From 26174f05486cb8b5f449bd4f2debf9837d1b1f17 Mon Sep 17 00:00:00 2001
From: songxiaosheng <songxiaosheng@elastic.link>
Date: Tue, 26 Sep 2023 20:32:54 +0800
Subject: [PATCH] :bug: destory xds exchanger null (#13086)

---
 .../org/apache/dubbo/registry/xds/XdsServiceDiscovery.java     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dubbo-xds/src/main/java/org/apache/dubbo/registry/xds/XdsServiceDiscovery.java b/dubbo-xds/src/main/java/org/apache/dubbo/registry/xds/XdsServiceDiscovery.java
index 91d6a72a73..b40b68650b 100644
--- a/dubbo-xds/src/main/java/org/apache/dubbo/registry/xds/XdsServiceDiscovery.java
+++ b/dubbo-xds/src/main/java/org/apache/dubbo/registry/xds/XdsServiceDiscovery.java
@@ -59,6 +59,9 @@ public class XdsServiceDiscovery extends ReflectionBasedServiceDiscovery {
     @Override
     public void doDestroy() {
         try {
+            if (exchanger == null) {
+                return;
+            }
             exchanger.destroy();
         } catch (Throwable t) {
             logger.error(REGISTRY_ERROR_INITIALIZE_XDS, "", "", t.getMessage(), t);