From b8f8de85160b0a072158b45320e9fc2adba545f5 Mon Sep 17 00:00:00 2001
From: Romain Guy <romainguy@android.com>
Date: Thu, 25 Jun 2009 12:03:56 -0700
Subject: [PATCH] Fixes #1940839. Prevents NPE in RelativeLayout when a
 non-existing View is targeted.

---
 core/java/android/widget/RelativeLayout.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/java/android/widget/RelativeLayout.java b/core/java/android/widget/RelativeLayout.java
index 955475e401ff9..44cf9a41c40ca 100644
--- a/core/java/android/widget/RelativeLayout.java
+++ b/core/java/android/widget/RelativeLayout.java
@@ -1222,6 +1222,9 @@ public class RelativeLayout extends ViewGroup {
                             throw new IllegalStateException("A view cannot have a dependency" +
                                     " on itself");
                         }
+                        if (dependency == null) {
+                            continue;
+                        }
                         // Add the current node as a dependent
                         dependency.dependents.add(node);
                         // Add a dependency to the current node