From 6476400e1c6034e1a5ed4b3f083993b584e66913 Mon Sep 17 00:00:00 2001
From: DerekYRC <15521077528@163.com>
Date: Wed, 3 Aug 2022 20:45:06 +0800
Subject: [PATCH] shutdown thread pool

---
 .../cloud/polaris/registry/PolarisServiceRegistry.java        | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java b/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java
index 284c8113e..0dbe5d29c 100644
--- a/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java
+++ b/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java
@@ -220,6 +220,8 @@ public class PolarisServiceRegistry implements ServiceRegistry<Registration>, Di
 
 	@Override
 	public void destroy() throws Exception {
-		heartbeatExecutor.shutdown();
+		if (heartbeatExecutor != null) {
+			heartbeatExecutor.shutdown();
+		}
 	}
 }