kitchensink.patch

diff --git a/examples/KitchenSink/src/LINEBot/KitchenSink/EventHandler/JoinEventHandler.php b/examples/KitchenSink/src/LINEBot/KitchenSink/EventHandler/JoinEventHandler.php
index 568b51f..7569722 100644
--- a/examples/KitchenSink/src/LINEBot/KitchenSink/EventHandler/JoinEventHandler.php
+++ b/examples/KitchenSink/src/LINEBot/KitchenSink/EventHandler/JoinEventHandler.php
@@ -46,9 +46,18 @@ class JoinEventHandler implements EventHandler

     public function handle()
     {
         $this->bot->replyText(
             $this->joinEvent->getReplyToken(),
-            sprintf('Joined %s %s', $this->joinEvent->getType(), $this->joinEvent->getUserId())
+            sprintf('Joined %s %s', $this->joinEvent->getType(), $this->joinEvent->getEventSourceId())
         );
     }
 }
diff --git a/examples/KitchenSink/src/LINEBot/KitchenSink/EventHandler/LeaveEventHandler.php b/examples/KitchenSink/src/LINEBot/KitchenSink/EventHandler/LeaveEventHandler.php
index 90fcc96..d519739 100644
--- a/examples/KitchenSink/src/LINEBot/KitchenSink/EventHandler/LeaveEventHandler.php
+++ b/examples/KitchenSink/src/LINEBot/KitchenSink/EventHandler/LeaveEventHandler.php
@@ -46,9 +46,15 @@ class LeaveEventHandler implements EventHandler

     public function handle()
     {
-        $this->bot->replyText(
-            $this->leaveEvent->getReplyToken(),
-            sprintf('Leaved %s %s', $this->leaveEvent->getType(), $this->leaveEvent->getUserId())
-        );
+        $this->logger->info(sprintf('Leaved %s %s', $this->leaveEvent->getType(), $this->leaveEvent->getEventSourceId));
     }
 }