diff --git a/mode/core/src/main/java/org/apache/shardingsphere/mode/event/builder/MetaDataChangedEventBuilder.java b/mode/core/src/main/java/org/apache/shardingsphere/mode/event/builder/MetaDataChangedEventBuilder.java
index a902d1868fc07..d8b5bed328838 100644
--- a/mode/core/src/main/java/org/apache/shardingsphere/mode/event/builder/MetaDataChangedEventBuilder.java
+++ b/mode/core/src/main/java/org/apache/shardingsphere/mode/event/builder/MetaDataChangedEventBuilder.java
@@ -46,7 +46,7 @@ public final class MetaDataChangedEventBuilder {
     
     /**
      * Build meta data changed event.
-     * 
+     *
      * @param databaseName database name
      * @param event data changed event
      * @return built event
diff --git a/mode/type/cluster/core/src/test/java/org/apache/shardingsphere/mode/manager/cluster/event/dispatch/listener/type/DatabaseMetaDataChangedListenerTest.java b/mode/type/cluster/core/src/test/java/org/apache/shardingsphere/mode/manager/cluster/event/dispatch/listener/type/DatabaseMetaDataChangedListenerTest.java
index 69e3253b501ef..d1cdabd4faa51 100644
--- a/mode/type/cluster/core/src/test/java/org/apache/shardingsphere/mode/manager/cluster/event/dispatch/listener/type/DatabaseMetaDataChangedListenerTest.java
+++ b/mode/type/cluster/core/src/test/java/org/apache/shardingsphere/mode/manager/cluster/event/dispatch/listener/type/DatabaseMetaDataChangedListenerTest.java
@@ -34,10 +34,10 @@
 class DatabaseMetaDataChangedListenerTest {
     
     private DatabaseMetaDataChangedListener listener;
-
+    
     @Mock
     private EventBusContext eventBusContext;
-
+    
     @BeforeEach
     void setUp() {
         listener = new DatabaseMetaDataChangedListener(eventBusContext);