From 4e09119e5e0efe2f61d0bca781101257abfbd200 Mon Sep 17 00:00:00 2001
From: f1v3-dev <f1v3@kakao.com>
Date: Wed, 4 Nov 2026 18:53:18 +0900
Subject: [PATCH] FIX: Prevent an NPE when reconnecting a node without a
 replica group

---
 src/main/java/net/spy/memcached/MemcachedConnection.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/net/spy/memcached/MemcachedConnection.java b/src/main/java/net/spy/memcached/MemcachedConnection.java
index 3b165a570..624698a4e 100644
--- a/src/main/java/net/spy/memcached/MemcachedConnection.java
+++ b/src/main/java/net/spy/memcached/MemcachedConnection.java
@@ -1251,7 +1251,7 @@ private void queueReconnect(MemcachedNode qa, ReconnDelay type, String cause) {
     /* ENABLE_REPLICATION if */
     if (arcusReplEnabled) {
       MemcachedReplicaGroup group = qa.getReplicaGroup();
-      if (group.isDelayedSwitchover() && group.getMasterNode() == qa) {
+      if (group != null && group.isDelayedSwitchover() && group.getMasterNode() == qa) {
         clearDelayedSwitchoverGroup(group);
         ((ArcusReplKetamaNodeLocator) locator).switchoverReplGroup(group);