From dffbb4dbceb7e90e91b65d02dfdbd1abd6147b94 Mon Sep 17 00:00:00 2001
From: Mitsuru Oshima <nobody@android.com>
Date: Wed, 29 Apr 2009 17:13:46 -0700
Subject: AI 148024: fix NPE when there is no history

Automated import of CL 148024
---
 core/java/android/view/MotionEvent.java | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/core/java/android/view/MotionEvent.java b/core/java/android/view/MotionEvent.java
index 24026601145e..0d5567908af8 100644
--- a/core/java/android/view/MotionEvent.java
+++ b/core/java/android/view/MotionEvent.java
@@ -225,10 +225,12 @@ public final class MotionEvent implements Parcelable {
             mSize *= scale;
             mXPrecision *= scale;
             mYPrecision *= scale;
-            float[] history = mHistory;
-            int length = history.length;
-            for (int i = 0; i < length; i++) {
-                history[i] *= scale;
+            if (mHistory != null) {
+                float[] history = mHistory;
+                int length = history.length;
+                for (int i = 0; i < length; i++) {
+                    history[i] *= scale;
+                }
             }
         }
     }
-- 
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