From 33e4f11c9f9722bea40048414ca3f0cb6a5be652 Mon Sep 17 00:00:00 2001
From: fengyubiao <yubiao.feng@streamnative.io>
Date: Wed, 14 Sep 2022 23:56:10 +0800
Subject: [PATCH] Cover more logical branches: topic future has exceptionally
 complete

---
 .../java/org/apache/pulsar/broker/service/BrokerService.java  | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BrokerService.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BrokerService.java
index 332e149957bac9..331641232f9254 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BrokerService.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BrokerService.java
@@ -2029,7 +2029,9 @@ public CompletableFuture<Void> removeTopicFromCache(String topicNameString, Topi
                 // Do remove.
                 return removeTopicFutureFromCache(topicNameString, createTopicFuture);
             }
-        });
+            // If the future in cache has exception complete,
+            // the topic instance in the cache is not the same with the topic.
+        }).exceptionally(ex -> null);
     }
 
     private CompletableFuture<Void> removeTopicFutureFromCache(String topic,