diff --git a/oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/jdbc/h2/H2StorageProvider.java b/oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/jdbc/h2/H2StorageProvider.java
index 169b81f444b9dccc1fac8d02ae093af3fb2ae625..8d0c6709af80fc9517bc55d9923be52f8bb5b415 100644
--- a/oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/jdbc/h2/H2StorageProvider.java
+++ b/oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/jdbc/h2/H2StorageProvider.java
@@ -19,45 +19,14 @@
 package org.apache.skywalking.oap.server.storage.plugin.jdbc.h2;
 
 import java.util.Properties;
-import org.apache.skywalking.oap.server.core.storage.IBatchDAO;
-import org.apache.skywalking.oap.server.core.storage.IHistoryDeleteDAO;
-import org.apache.skywalking.oap.server.core.storage.IRegisterLockDAO;
-import org.apache.skywalking.oap.server.core.storage.StorageDAO;
-import org.apache.skywalking.oap.server.core.storage.StorageException;
-import org.apache.skywalking.oap.server.core.storage.StorageModule;
-import org.apache.skywalking.oap.server.core.storage.cache.IEndpointInventoryCacheDAO;
-import org.apache.skywalking.oap.server.core.storage.cache.INetworkAddressInventoryCacheDAO;
-import org.apache.skywalking.oap.server.core.storage.cache.IServiceInstanceInventoryCacheDAO;
-import org.apache.skywalking.oap.server.core.storage.cache.IServiceInventoryCacheDAO;
-import org.apache.skywalking.oap.server.core.storage.query.IAggregationQueryDAO;
-import org.apache.skywalking.oap.server.core.storage.query.IAlarmQueryDAO;
-import org.apache.skywalking.oap.server.core.storage.query.IMetadataQueryDAO;
-import org.apache.skywalking.oap.server.core.storage.query.IMetricQueryDAO;
-import org.apache.skywalking.oap.server.core.storage.query.ITopologyQueryDAO;
-import org.apache.skywalking.oap.server.core.storage.query.ITraceQueryDAO;
+import org.apache.skywalking.oap.server.core.CoreModule;
+import org.apache.skywalking.oap.server.core.storage.*;
+import org.apache.skywalking.oap.server.core.storage.cache.*;
+import org.apache.skywalking.oap.server.core.storage.query.*;
 import org.apache.skywalking.oap.server.library.client.jdbc.hikaricp.JDBCHikariCPClient;
-import org.apache.skywalking.oap.server.library.module.ModuleConfig;
-import org.apache.skywalking.oap.server.library.module.ModuleDefine;
-import org.apache.skywalking.oap.server.library.module.ModuleProvider;
-import org.apache.skywalking.oap.server.library.module.ModuleStartException;
-import org.apache.skywalking.oap.server.library.module.ServiceNotProvidedException;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2AggregationQueryDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2AlarmQueryDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2BatchDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2EndpointInventoryCacheDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2HistoryDeleteDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2MetadataQueryDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2MetricQueryDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2NetworkAddressInventoryCacheDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2RegisterLockDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2ServiceInstanceInventoryCacheDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2ServiceInventoryCacheDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2StorageDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2TableInstaller;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2TopologyQueryDAO;
-import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.H2TraceQueryDAO;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import org.apache.skywalking.oap.server.library.module.*;
+import org.apache.skywalking.oap.server.storage.plugin.jdbc.h2.dao.*;
+import org.slf4j.*;
 
 /**
  * H2 Storage provider is for demonstration and preview only. I will find that haven't implemented several interfaces,
@@ -132,6 +101,6 @@ public class H2StorageProvider extends ModuleProvider {
     }
 
     @Override public String[] requiredModules() {
-        return new String[0];
+        return new String[] {CoreModule.NAME};
     }
 }