From 60207377759e349c3010235b43e4e2593ce72930 Mon Sep 17 00:00:00 2001
From: Aleksi Hietanen <aleksi@vaadin.com>
Date: Wed, 10 May 2017 13:02:06 +0300
Subject: [PATCH] Make CollapseListener and ExpandListener extend
 SerializableEventListener

---
 server/src/main/java/com/vaadin/event/CollapseEvent.java | 3 +--
 server/src/main/java/com/vaadin/event/ExpandEvent.java   | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/server/src/main/java/com/vaadin/event/CollapseEvent.java b/server/src/main/java/com/vaadin/event/CollapseEvent.java
index f0ba6d1907..78da8d1529 100644
--- a/server/src/main/java/com/vaadin/event/CollapseEvent.java
+++ b/server/src/main/java/com/vaadin/event/CollapseEvent.java
@@ -15,7 +15,6 @@
  */
 package com.vaadin.event;
 
-import java.io.Serializable;
 import java.lang.reflect.Method;
 
 import com.vaadin.ui.Component;
@@ -82,7 +81,7 @@ public class CollapseEvent<T> extends Component.Event {
      * @since 8.1
      */
     @FunctionalInterface
-    public interface CollapseListener<T> extends Serializable {
+    public interface CollapseListener<T> extends SerializableEventListener {
 
         public static final Method COLLAPSE_METHOD = ReflectTools.findMethod(
                 CollapseListener.class, "itemCollapse", CollapseEvent.class);
diff --git a/server/src/main/java/com/vaadin/event/ExpandEvent.java b/server/src/main/java/com/vaadin/event/ExpandEvent.java
index ce11bd4d8c..5340489ee2 100644
--- a/server/src/main/java/com/vaadin/event/ExpandEvent.java
+++ b/server/src/main/java/com/vaadin/event/ExpandEvent.java
@@ -15,7 +15,6 @@
  */
 package com.vaadin.event;
 
-import java.io.Serializable;
 import java.lang.reflect.Method;
 
 import com.vaadin.ui.Component;
@@ -81,7 +80,7 @@ public class ExpandEvent<T> extends Component.Event {
      * @since 8.1
      */
     @FunctionalInterface
-    public interface ExpandListener<T> extends Serializable {
+    public interface ExpandListener<T> extends SerializableEventListener {
 
         public static final Method EXPAND_METHOD = ReflectTools.findMethod(
                 ExpandListener.class, "itemExpand", ExpandEvent.class);
-- 
2.39.5