From 36b0e979e0b544b5885683d3b7b5adebcaa1566c Mon Sep 17 00:00:00 2001
From: Marc Englund <marc.englund@itmill.com>
Date: Tue, 6 Nov 2007 09:24:35 +0000
Subject: [PATCH] Tree now throws if setNullSelectionItemId() is called
 (unsupported).

svn changeset:2719/svn branch:trunk
---
 src/com/itmill/toolkit/ui/Tree.java | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/com/itmill/toolkit/ui/Tree.java b/src/com/itmill/toolkit/ui/Tree.java
index c8a8b76a51..fb5bce08ca 100644
--- a/src/com/itmill/toolkit/ui/Tree.java
+++ b/src/com/itmill/toolkit/ui/Tree.java
@@ -944,6 +944,19 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
 		return visible;
 	}
 
+	/**
+	 * Tree does not support <code>setNullSelectionItemId</code>.
+	 * 
+	 * @see com.itmill.toolkit.ui.AbstractSelect#setNullSelectionItemId(java.lang.Object)
+	 */
+	public void setNullSelectionItemId(Object nullSelectionItemId)
+			throws UnsupportedOperationException {
+		if (nullSelectionItemId != null) {
+			throw new UnsupportedOperationException();
+		}
+
+	}
+
 	/**
 	 * Adding new items is not supported.
 	 * 
-- 
2.39.5