From ea07d99b87ebf3640f219473e0edeaf650dbd303 Mon Sep 17 00:00:00 2001
From: Artur Signell <artur@vaadin.com>
Date: Tue, 13 Mar 2012 12:13:52 +0200
Subject: [PATCH] #8500 Print an error message instead of throwing NPE if
 parent cannot be found for some reason

---
 .../gwt/client/ui/AbstractComponentConnector.java        | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/com/vaadin/terminal/gwt/client/ui/AbstractComponentConnector.java b/src/com/vaadin/terminal/gwt/client/ui/AbstractComponentConnector.java
index 582fc3078c..b7aea9b735 100644
--- a/src/com/vaadin/terminal/gwt/client/ui/AbstractComponentConnector.java
+++ b/src/com/vaadin/terminal/gwt/client/ui/AbstractComponentConnector.java
@@ -184,7 +184,14 @@ public abstract class AbstractComponentConnector extends AbstractConnector
 
         // Set captions
         if (delegateCaptionHandling()) {
-            getParent().updateCaption(this, uidl);
+            ComponentContainerConnector parent = getParent();
+            if (parent != null) {
+                parent.updateCaption(this, uidl);
+            } else {
+                VConsole.error("Parent of connector "
+                        + getClass().getName()
+                        + " is null. This is typically an indication of a broken component hierarchy");
+            }
         }
 
         /*
-- 
2.39.5