diff --git a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/merge/dql/pagination/RowNumberDecoratorMergedResultTest.java b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/merge/dql/pagination/RowNumberDecoratorMergedResultTest.java
index e52d7071edb7e..a53973ca64284 100644
--- a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/merge/dql/pagination/RowNumberDecoratorMergedResultTest.java
+++ b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/merge/dql/pagination/RowNumberDecoratorMergedResultTest.java
@@ -165,7 +165,8 @@ void assertNextForRowCountBoundOpenedTrue() throws SQLException {
         ShardingSphereDatabase database = mock(ShardingSphereDatabase.class, RETURNS_DEEP_STUBS);
         when(database.getName()).thenReturn(DefaultDatabase.LOGIC_NAME);
         SelectStatementContext selectStatementContext = new SelectStatementContext(createShardingSphereMetaData(database), null, selectStatement, DefaultDatabase.LOGIC_NAME, Collections.emptyList());
-        MergedResult actual = resultMerger.merge(Arrays.asList(mockQueryResult(), mockQueryResult(), mockQueryResult(), mockQueryResult()), selectStatementContext, database, mock(ConnectionContext.class));
+        MergedResult actual =
+                resultMerger.merge(Arrays.asList(mockQueryResult(), mockQueryResult(), mockQueryResult(), mockQueryResult()), selectStatementContext, database, mock(ConnectionContext.class));
         assertTrue(actual.next());
         assertTrue(actual.next());
         assertTrue(actual.next());
diff --git a/proxy/backend/type/mysql/src/test/java/org/apache/shardingsphere/proxy/backend/mysql/handler/admin/executor/information/SelectInformationSchemataExecutorTest.java b/proxy/backend/type/mysql/src/test/java/org/apache/shardingsphere/proxy/backend/mysql/handler/admin/executor/information/SelectInformationSchemataExecutorTest.java
index a71acde8dad1f..9c5856b0545b7 100644
--- a/proxy/backend/type/mysql/src/test/java/org/apache/shardingsphere/proxy/backend/mysql/handler/admin/executor/information/SelectInformationSchemataExecutorTest.java
+++ b/proxy/backend/type/mysql/src/test/java/org/apache/shardingsphere/proxy/backend/mysql/handler/admin/executor/information/SelectInformationSchemataExecutorTest.java
@@ -166,7 +166,8 @@ private ContextManager mockContextManager(final ShardingSphereDatabase... databa
         when(shardingSphereDataPersistService.load(any())).thenReturn(Optional.empty());
         when(metaDataPersistService.getShardingSphereDataPersistService()).thenReturn(shardingSphereDataPersistService);
         MetaDataContexts metaDataContexts = MetaDataContextsFactory.create(metaDataPersistService, new ShardingSphereMetaData(
-                Arrays.stream(databases).collect(Collectors.toList()), mock(ResourceMetaData.class), new RuleMetaData(Collections.singleton(authorityRule)), new ConfigurationProperties(new Properties())));
+                Arrays.stream(databases).collect(Collectors.toList()), mock(ResourceMetaData.class), new RuleMetaData(Collections.singleton(authorityRule)),
+                new ConfigurationProperties(new Properties())));
         when(result.getMetaDataContexts()).thenReturn(metaDataContexts);
         for (ShardingSphereDatabase each : databases) {
             when(result.getDatabase(each.getName())).thenReturn(each);
diff --git a/proxy/frontend/core/src/test/java/org/apache/shardingsphere/proxy/frontend/protocol/FrontDatabaseProtocolTypeFactoryTest.java b/proxy/frontend/core/src/test/java/org/apache/shardingsphere/proxy/frontend/protocol/FrontDatabaseProtocolTypeFactoryTest.java
index 7584cc85c432c..c2468079e3cc5 100644
--- a/proxy/frontend/core/src/test/java/org/apache/shardingsphere/proxy/frontend/protocol/FrontDatabaseProtocolTypeFactoryTest.java
+++ b/proxy/frontend/core/src/test/java/org/apache/shardingsphere/proxy/frontend/protocol/FrontDatabaseProtocolTypeFactoryTest.java
@@ -24,8 +24,6 @@
 import org.apache.shardingsphere.infra.instance.ComputeNodeInstanceContext;
 import org.apache.shardingsphere.infra.metadata.ShardingSphereMetaData;
 import org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
-import org.apache.shardingsphere.infra.metadata.database.resource.ResourceMetaData;
-import org.apache.shardingsphere.infra.metadata.database.rule.RuleMetaData;
 import org.apache.shardingsphere.infra.spi.type.typed.TypedSPILoader;
 import org.apache.shardingsphere.metadata.persist.MetaDataPersistService;
 import org.apache.shardingsphere.metadata.persist.data.ShardingSphereDataPersistService;
@@ -45,7 +43,6 @@
 
 import java.util.Collection;
 import java.util.Collections;
-import java.util.Map;
 import java.util.Optional;
 import java.util.Properties;
 
@@ -63,14 +60,14 @@ class FrontDatabaseProtocolTypeFactoryTest {
     
     @Test
     void assertGetDatabaseTypeWhenThrowShardingSphereConfigurationException() {
-        ContextManager contextManager = mockContextManager(Collections.emptyMap(), new Properties());
+        ContextManager contextManager = mockContextManager(Collections.emptyList(), new Properties());
         when(ProxyContext.getInstance().getContextManager()).thenReturn(contextManager);
         assertThat(FrontDatabaseProtocolTypeFactory.getDatabaseType().getType(), is("MySQL"));
     }
     
     @Test
     void assertGetDatabaseTypeInstanceOfMySQLDatabaseTypeFromMetaDataContextsSchemaName() {
-        ContextManager contextManager = mockContextManager(mockDatabase(), new Properties());
+        ContextManager contextManager = mockContextManager(Collections.singleton(mockDatabase()), new Properties());
         when(ProxyContext.getInstance().getContextManager()).thenReturn(contextManager);
         DatabaseType databaseType = FrontDatabaseProtocolTypeFactory.getDatabaseType();
         assertThat(databaseType, instanceOf(DatabaseType.class));