diff --git a/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/ApplicationDataDefine.java b/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/ApplicationDataDefine.java
index 35e4fa310..7d4f4abc1 100644
--- a/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/ApplicationDataDefine.java
+++ b/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/ApplicationDataDefine.java
@@ -1,12 +1,11 @@
 package org.skywalking.apm.collector.storage.define.register;
 
+import org.skywalking.apm.collector.core.stream.operate.CoverOperation;
+import org.skywalking.apm.collector.core.stream.operate.NonOperation;
 import org.skywalking.apm.collector.remote.grpc.proto.RemoteData;
-import org.skywalking.apm.collector.storage.define.register.ApplicationTable;
 import org.skywalking.apm.collector.storage.define.Attribute;
 import org.skywalking.apm.collector.storage.define.AttributeType;
 import org.skywalking.apm.collector.storage.define.DataDefine;
-import org.skywalking.apm.collector.core.stream.operate.CoverOperation;
-import org.skywalking.apm.collector.core.stream.operate.NonOperation;
 
 /**
  * @author pengys5
diff --git a/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/InstanceDataDefine.java b/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/InstanceDataDefine.java
index 7dec015ac..20c604334 100644
--- a/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/InstanceDataDefine.java
+++ b/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/InstanceDataDefine.java
@@ -1,12 +1,11 @@
 package org.skywalking.apm.collector.storage.define.register;
 
+import org.skywalking.apm.collector.core.stream.operate.CoverOperation;
+import org.skywalking.apm.collector.core.stream.operate.NonOperation;
 import org.skywalking.apm.collector.remote.grpc.proto.RemoteData;
-import org.skywalking.apm.collector.storage.define.register.InstanceTable;
 import org.skywalking.apm.collector.storage.define.Attribute;
 import org.skywalking.apm.collector.storage.define.AttributeType;
 import org.skywalking.apm.collector.storage.define.DataDefine;
-import org.skywalking.apm.collector.core.stream.operate.CoverOperation;
-import org.skywalking.apm.collector.core.stream.operate.NonOperation;
 
 /**
  * @author pengys5
diff --git a/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/ServiceNameDataDefine.java b/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/ServiceNameDataDefine.java
index 1ce11907a..6753e93f3 100644
--- a/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/ServiceNameDataDefine.java
+++ b/apm-collector/apm-collector-storage/src/main/java/org/skywalking/apm/collector/storage/define/register/ServiceNameDataDefine.java
@@ -1,12 +1,11 @@
 package org.skywalking.apm.collector.storage.define.register;
 
+import org.skywalking.apm.collector.core.stream.operate.CoverOperation;
+import org.skywalking.apm.collector.core.stream.operate.NonOperation;
 import org.skywalking.apm.collector.remote.grpc.proto.RemoteData;
-import org.skywalking.apm.collector.storage.define.register.ServiceNameTable;
 import org.skywalking.apm.collector.storage.define.Attribute;
 import org.skywalking.apm.collector.storage.define.AttributeType;
 import org.skywalking.apm.collector.storage.define.DataDefine;
-import org.skywalking.apm.collector.core.stream.operate.CoverOperation;
-import org.skywalking.apm.collector.core.stream.operate.NonOperation;
 
 /**
  * @author pengys5