From f8f752a9242fbd5b6fd2ea4174894a4bb47af06c Mon Sep 17 00:00:00 2001
From: "ken.lj" <ken.lj.hz@gmail.com>
Date: Mon, 23 Nov 2020 12:05:57 +0800
Subject: [PATCH] fix optional NPE

---
 .../dubbo/registry/client/migration/MigrationRuleListener.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/migration/MigrationRuleListener.java b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/migration/MigrationRuleListener.java
index 6c00944cc2..da604c922d 100644
--- a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/migration/MigrationRuleListener.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/migration/MigrationRuleListener.java
@@ -48,7 +48,7 @@ public class MigrationRuleListener implements RegistryProtocolListener, Configur
     private volatile String rawRule;
 
     public MigrationRuleListener() {
-        this.configuration = ApplicationModel.getEnvironment().getDynamicConfiguration().orElseGet(null);
+        this.configuration = ApplicationModel.getEnvironment().getDynamicConfiguration().orElse(null);
 
         logger.info("Listening for migration rules on dataId-" + RULE_KEY + " group-" + DUBBO_SERVICEDISCOVERY_MIGRATION);
         configuration.addListener(RULE_KEY, DUBBO_SERVICEDISCOVERY_MIGRATION, this);