From bcd342e8708bd4c17f8a218b2ec76fcea9a4f1d8 Mon Sep 17 00:00:00 2001
From: Artur Signell <artur.signell@itmill.com>
Date: Mon, 22 Feb 2010 15:26:54 +0000
Subject: [PATCH] Fix for #4216 - HierarchicalContainer.areChildrenAllowed
 returns true for items not in container

svn changeset:11467/svn branch:6.3
---
 src/com/vaadin/data/util/HierarchicalContainer.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/com/vaadin/data/util/HierarchicalContainer.java b/src/com/vaadin/data/util/HierarchicalContainer.java
index f710e6d1fb..988676be8c 100644
--- a/src/com/vaadin/data/util/HierarchicalContainer.java
+++ b/src/com/vaadin/data/util/HierarchicalContainer.java
@@ -51,7 +51,10 @@ public class HierarchicalContainer extends IndexedContainer implements
      * here, we use the default documentation from implemented interface.
      */
     public boolean areChildrenAllowed(Object itemId) {
-        return !noChildrenAllowed.contains(itemId);
+        if (noChildrenAllowed.contains(itemId)) {
+            return false;
+        }
+        return containsId(itemId);
     }
 
     /*
-- 
2.39.5