diff --git a/tools/src/test/java/org/apache/rocketmq/tools/admin/DefaultMQAdminExtTest.java b/tools/src/test/java/org/apache/rocketmq/tools/admin/DefaultMQAdminExtTest.java
index da3bd8c9e0aac245e398743402bb48db1764285e..bb80eb4dc4a1632e4e30c9410d01d11e128ada56 100644
--- a/tools/src/test/java/org/apache/rocketmq/tools/admin/DefaultMQAdminExtTest.java
+++ b/tools/src/test/java/org/apache/rocketmq/tools/admin/DefaultMQAdminExtTest.java
@@ -16,18 +16,45 @@
  */
 package org.apache.rocketmq.tools.admin;
 
+import java.io.UnsupportedEncodingException;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.TreeSet;
+import java.util.concurrent.ConcurrentHashMap;
 import org.apache.rocketmq.client.ClientConfig;
 import org.apache.rocketmq.client.exception.MQBrokerException;
 import org.apache.rocketmq.client.exception.MQClientException;
 import org.apache.rocketmq.client.impl.MQClientAPIImpl;
 import org.apache.rocketmq.client.impl.MQClientManager;
 import org.apache.rocketmq.client.impl.factory.MQClientInstance;
-import org.apache.rocketmq.common.admin.*;
+import org.apache.rocketmq.common.admin.ConsumeStats;
+import org.apache.rocketmq.common.admin.OffsetWrapper;
+import org.apache.rocketmq.common.admin.TopicOffset;
+import org.apache.rocketmq.common.admin.TopicStatsTable;
 import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
 import org.apache.rocketmq.common.message.MessageExt;
 import org.apache.rocketmq.common.message.MessageQueue;
 import org.apache.rocketmq.common.namesrv.NamesrvUtil;
-import org.apache.rocketmq.common.protocol.body.*;
+import org.apache.rocketmq.common.protocol.body.ClusterInfo;
+import org.apache.rocketmq.common.protocol.body.Connection;
+import org.apache.rocketmq.common.protocol.body.ConsumeStatsList;
+import org.apache.rocketmq.common.protocol.body.ConsumeStatus;
+import org.apache.rocketmq.common.protocol.body.ConsumerConnection;
+import org.apache.rocketmq.common.protocol.body.ConsumerRunningInfo;
+import org.apache.rocketmq.common.protocol.body.GroupList;
+import org.apache.rocketmq.common.protocol.body.KVTable;
+import org.apache.rocketmq.common.protocol.body.ProcessQueueInfo;
+import org.apache.rocketmq.common.protocol.body.ProducerConnection;
+import org.apache.rocketmq.common.protocol.body.QueueTimeSpan;
+import org.apache.rocketmq.common.protocol.body.SubscriptionGroupWrapper;
+import org.apache.rocketmq.common.protocol.body.TopicList;
 import org.apache.rocketmq.common.protocol.heartbeat.ConsumeType;
 import org.apache.rocketmq.common.protocol.heartbeat.MessageModel;
 import org.apache.rocketmq.common.protocol.heartbeat.SubscriptionData;
@@ -35,7 +62,11 @@ import org.apache.rocketmq.common.protocol.route.BrokerData;
 import org.apache.rocketmq.common.protocol.route.QueueData;
 import org.apache.rocketmq.common.protocol.route.TopicRouteData;
 import org.apache.rocketmq.common.subscription.SubscriptionGroupConfig;
-import org.apache.rocketmq.remoting.exception.*;
+import org.apache.rocketmq.remoting.exception.RemotingCommandException;
+import org.apache.rocketmq.remoting.exception.RemotingConnectException;
+import org.apache.rocketmq.remoting.exception.RemotingException;
+import org.apache.rocketmq.remoting.exception.RemotingSendRequestException;
+import org.apache.rocketmq.remoting.exception.RemotingTimeoutException;
 import org.apache.rocketmq.tools.admin.api.MessageTrack;
 import org.junit.After;
 import org.junit.Before;
@@ -43,13 +74,10 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.junit.MockitoJUnitRunner;
 
-import java.io.UnsupportedEncodingException;
-import java.lang.reflect.Field;
-import java.util.*;
-import java.util.concurrent.ConcurrentHashMap;
-
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
@@ -88,7 +116,6 @@ public class DefaultMQAdminExtTest {
         topicList.setTopicList(topicSet);
         when(mQClientAPIImpl.getTopicListFromNameServer(anyLong())).thenReturn(topicList);
 
-
         List<BrokerData> brokerDatas = new ArrayList<>();
         HashMap<Long, String> brokerAddrs = new HashMap<>();
         brokerAddrs.put(1234l, "127.0.0.1:10911");
@@ -210,7 +237,6 @@ public class DefaultMQAdminExtTest {
         assertThat(result.getProperty("serverSocketRcvBufSize")).isEqualTo("655350");
     }
 
-
     @Test
     public void testFetchAllTopicList() throws RemotingException, MQClientException, InterruptedException {
         TopicList topicList = defaultMQAdminExtImpl.fetchAllTopicList();
@@ -296,7 +322,6 @@ public class DefaultMQAdminExtTest {
         assertThat(kvs.getTable().get("cluster-name")).isEqualTo("default-cluster");
     }
 
-
     @Test
     public void testQueryTopicConsumeByWho() throws InterruptedException, RemotingException, MQClientException, MQBrokerException {
         GroupList groupList = defaultMQAdminExtImpl.queryTopicConsumeByWho("UnitTest");