diff --git a/spring-cloud-starter-tencent-polaris-ratelimit/src/test/java/com/tencent/cloud/polaris/ratelimit/config/PolarisRateLimitConfigModifierTest.java b/spring-cloud-starter-tencent-polaris-ratelimit/src/test/java/com/tencent/cloud/polaris/ratelimit/config/PolarisRateLimitConfigModifierTest.java
index 87ed1c680..0acb4f5fd 100644
--- a/spring-cloud-starter-tencent-polaris-ratelimit/src/test/java/com/tencent/cloud/polaris/ratelimit/config/PolarisRateLimitConfigModifierTest.java
+++ b/spring-cloud-starter-tencent-polaris-ratelimit/src/test/java/com/tencent/cloud/polaris/ratelimit/config/PolarisRateLimitConfigModifierTest.java
@@ -1,7 +1,23 @@
+/*
+ * Tencent is pleased to support the open source community by making spring-cloud-tencent available.
+ *
+ * Copyright (C) 2021 Tencent. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
 package com.tencent.cloud.polaris.ratelimit.config;
 
 import com.tencent.cloud.polaris.context.PolarisSDKContextManager;
-import com.tencent.cloud.polaris.context.config.PolarisContextAutoConfiguration;
 import com.tencent.polaris.api.config.provider.RateLimitConfig;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;