[NUI] Fix NUIApplication svace issue

diff --git a/src/Tizen.NUI/src/public/Application/NUIApplication.cs b/src/Tizen.NUI/src/public/Application/NUIApplication.cs
index 18484bb..0cb1476 100755 (executable)
--- a/src/Tizen.NUI/src/public/Application/NUIApplication.cs
+++ b/src/Tizen.NUI/src/public/Application/NUIApplication.cs
@@ -582,7 +582,7 @@ namespace Tizen.NUI
         /// <since_tizen> 3 </since_tizen>
         protected override void OnAppControlReceived(AppControlReceivedEventArgs e)
         {
-            if (e != null)
+            if (e != null && e.ReceivedAppControl != null)
             {
                 Log.Info("NUI", "OnAppControlReceived() is called! ApplicationId=" + e.ReceivedAppControl.ApplicationId);
                 Log.Info("NUI", "CallerApplicationId=" + e.ReceivedAppControl.CallerApplicationId + "   IsReplyRequest=" + e.ReceivedAppControl.IsReplyRequest);