diff --git a/platform/lang-impl/src/com/intellij/application/options/codeStyle/MultilanguageCodeStyleAbstractPanel.java b/platform/lang-impl/src/com/intellij/application/options/codeStyle/MultilanguageCodeStyleAbstractPanel.java
index 69910417c7f3..88a23eea3428 100644
--- a/platform/lang-impl/src/com/intellij/application/options/codeStyle/MultilanguageCodeStyleAbstractPanel.java
+++ b/platform/lang-impl/src/com/intellij/application/options/codeStyle/MultilanguageCodeStyleAbstractPanel.java
@@ -35,6 +35,7 @@ import com.intellij.psi.codeStyle.CodeStyleManager;
 import com.intellij.psi.codeStyle.CodeStyleSettings;
 import com.intellij.psi.codeStyle.CodeStyleSettingsCustomizable;
 import com.intellij.psi.codeStyle.LanguageCodeStyleSettingsProvider;
+import com.intellij.ui.AncestorListenerAdapter;
 import com.intellij.ui.components.JBTabbedPane;
 import com.intellij.util.Function;
 import com.intellij.util.IncorrectOperationException;
@@ -46,7 +47,6 @@ import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
 import javax.swing.event.AncestorEvent;
-import javax.swing.event.AncestorListener;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 import java.awt.*;
@@ -236,21 +236,11 @@ public abstract class MultilanguageCodeStyleAbstractPanel extends CodeStyleAbstr
         }
       });
       previewPanel.add(tabbedPane, BorderLayout.CENTER);
-      previewPanel.addAncestorListener(new AncestorListener() {
+      previewPanel.addAncestorListener(new AncestorListenerAdapter() {
         @Override
         public void ancestorAdded(AncestorEvent event) {
           selectCurrentLanguageTab();
         }
-
-        @Override
-        public void ancestorRemoved(AncestorEvent event) {
-          // Do nothing
-        }
-
-        @Override
-        public void ancestorMoved(AncestorEvent event) {
-          // Do nothing
-        }
       });
     }
     else {
diff --git a/platform/platform-api/src/com/intellij/ui/AncestorListenerAdapter.java b/platform/platform-api/src/com/intellij/ui/AncestorListenerAdapter.java
new file mode 100644
index 000000000000..604e70c1079c
--- /dev/null
+++ b/platform/platform-api/src/com/intellij/ui/AncestorListenerAdapter.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2000-2013 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.ui;
+
+import javax.swing.event.AncestorEvent;
+import javax.swing.event.AncestorListener;
+
+public abstract class AncestorListenerAdapter implements AncestorListener {
+  @Override
+  public void ancestorAdded(AncestorEvent event) {
+  }
+
+  @Override
+  public void ancestorRemoved(AncestorEvent event) {
+  }
+
+  @Override
+  public void ancestorMoved(AncestorEvent event) {
+  }
+}
\ No newline at end of file
diff --git a/platform/platform-impl/src/com/intellij/notification/EventLogToolWindowFactory.java b/platform/platform-impl/src/com/intellij/notification/EventLogToolWindowFactory.java
index 66efacdd5347..6db8dc7e82ab 100644
--- a/platform/platform-impl/src/com/intellij/notification/EventLogToolWindowFactory.java
+++ b/platform/platform-impl/src/com/intellij/notification/EventLogToolWindowFactory.java
@@ -31,12 +31,12 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.SimpleToolWindowPanel;
 import com.intellij.openapi.wm.ToolWindow;
 import com.intellij.openapi.wm.ToolWindowFactory;
+import com.intellij.ui.AncestorListenerAdapter;
 import com.intellij.ui.content.Content;
 import com.intellij.ui.content.ContentFactory;
 import org.jetbrains.annotations.NonNls;
 
 import javax.swing.event.AncestorEvent;
-import javax.swing.event.AncestorListener;
 
 /**
 * @author peter
@@ -143,7 +143,7 @@ public class EventLogToolWindowFactory implements ToolWindowFactory, DumbAware {
     }
   }
 
-  private static class LogShownTracker implements AncestorListener {
+  private static class LogShownTracker extends AncestorListenerAdapter {
     private final Project myProject;
 
     public LogShownTracker(Project project) {
@@ -157,13 +157,5 @@ public class EventLogToolWindowFactory implements ToolWindowFactory, DumbAware {
         EventLog.getLogModel(myProject).logShown();
       }
     }
-
-    @Override
-    public void ancestorRemoved(AncestorEvent event) {
-    }
-
-    @Override
-    public void ancestorMoved(AncestorEvent event) {
-    }
   }
 }
diff --git a/plugins/IntelliLang/src/org/intellij/plugins/intelliLang/inject/config/ui/LanguagePanel.java b/plugins/IntelliLang/src/org/intellij/plugins/intelliLang/inject/config/ui/LanguagePanel.java
index c029af24256d..ec92040f4a77 100644
--- a/plugins/IntelliLang/src/org/intellij/plugins/intelliLang/inject/config/ui/LanguagePanel.java
+++ b/plugins/IntelliLang/src/org/intellij/plugins/intelliLang/inject/config/ui/LanguagePanel.java
@@ -24,6 +24,7 @@ import com.intellij.openapi.fileTypes.SyntaxHighlighter;
 import com.intellij.openapi.fileTypes.SyntaxHighlighterFactory;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.ComboBox;
+import com.intellij.ui.AncestorListenerAdapter;
 import com.intellij.ui.ColoredListCellRendererWrapper;
 import com.intellij.ui.EditorTextField;
 import com.intellij.ui.SimpleTextAttributes;
@@ -33,7 +34,6 @@ import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
 import javax.swing.event.AncestorEvent;
-import javax.swing.event.AncestorListener;
 import java.awt.event.ItemEvent;
 import java.awt.event.ItemListener;
 import java.util.Arrays;
@@ -75,6 +75,7 @@ public class LanguagePanel extends AbstractInjectionPanel<BaseInjection> {
       }
     });
     myLanguage.addItemListener(new ItemListener() {
+      @Override
       public void itemStateChanged(ItemEvent e) {
         if (e.getStateChange() == ItemEvent.SELECTED) {
           updateHighlighters();
@@ -82,16 +83,11 @@ public class LanguagePanel extends AbstractInjectionPanel<BaseInjection> {
       }
     });
 
-    myRoot.addAncestorListener(new AncestorListener() {
+    myRoot.addAncestorListener(new AncestorListenerAdapter() {
+      @Override
       public void ancestorAdded(AncestorEvent event) {
         updateHighlighters();
       }
-
-      public void ancestorRemoved(AncestorEvent event) {
-      }
-
-      public void ancestorMoved(AncestorEvent event) {
-      }
     });
   }
 
@@ -149,18 +145,21 @@ public class LanguagePanel extends AbstractInjectionPanel<BaseInjection> {
     }
   }
 
+  @Override
   protected void resetImpl() {
     setLanguage(myOrigInjection.getInjectedLanguageId());
     setPrefix(myOrigInjection.getPrefix());
     setSuffix(myOrigInjection.getSuffix());
   }
 
+  @Override
   protected void apply(BaseInjection i) {
     i.setInjectedLanguageId(getLanguage());
     i.setPrefix(getPrefix());
     i.setSuffix(getSuffix());
   }
 
+  @Override
   public JPanel getComponent() {
     return myRoot;
   }