2 files changed, 5 insertions, 4 deletions
diff --git a/src/com/vaadin/event/Action.java b/src/com/vaadin/event/Action.java
index fcb8f165b4..b0af0de4be 100644
--- a/src/com/vaadin/event/Action.java
+++ b/src/com/vaadin/event/Action.java
@@ -79,7 +79,7 @@ public class Action implements Serializable {
      * Action.Handler interface.<br/>
      * 
      */
-    public interface Listener {
+    public interface Listener extends Serializable {
         public void handleAction(Object sender, Object target);
     }
 
@@ -95,7 +95,7 @@ public class Action implements Serializable {
         public <T extends Action & Action.Listener> void removeAction(T action);
     }
 
-    public interface ShortcutNotifier {
+    public interface ShortcutNotifier extends Serializable {
         public void addShortcutListener(ShortcutListener shortcut);
 
         public void removeShortcutListener(ShortcutListener shortcut);
diff --git a/src/com/vaadin/event/FieldEvents.java b/src/com/vaadin/event/FieldEvents.java
index 5aff31e1bf..202b079536 100644
--- a/src/com/vaadin/event/FieldEvents.java
+++ b/src/com/vaadin/event/FieldEvents.java
@@ -4,6 +4,7 @@
 
 package com.vaadin.event;
 
+import java.io.Serializable;
 import java.lang.reflect.Method;
 
 import com.vaadin.terminal.gwt.client.EventId;
@@ -33,7 +34,7 @@ public interface FieldEvents {
      * @see FocusListener
      * @see FocusEvent
      */
-    public interface FocusNotifier {
+    public interface FocusNotifier extends Serializable {
         /**
          * Adds a <code>FocusListener</code> to the Component which gets fired
          * when a <code>Field</code> receives keyboard focus.
@@ -71,7 +72,7 @@ public interface FieldEvents {
      * @see BlurListener
      * @see BlurEvent
      */
-    public interface BlurNotifier {
+    public interface BlurNotifier extends Serializable {
         /**
          * Adds a <code>BlurListener</code> to the Component which gets fired
          * when a <code>Field</code> loses keyboard focus.