From b6bdb0f02df1004307d25ae86e09cdbbc6865e75 Mon Sep 17 00:00:00 2001
From: Adam Lesinski <adamlesinski@google.com>
Date: Thu, 5 Feb 2015 11:11:03 -0800
Subject: Make ArrayMap.EMPTY immutable

This is a regression from KitKat.

Bug:19271657
Change-Id: I11b8e4dd50f6a8d2b15fef66b44aa2d72b1f0349
---
 core/java/android/util/ArrayMap.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/java/android/util/ArrayMap.java b/core/java/android/util/ArrayMap.java
index 7c9861f..6ed3885 100644
--- a/core/java/android/util/ArrayMap.java
+++ b/core/java/android/util/ArrayMap.java
@@ -255,7 +255,10 @@ public final class ArrayMap<K, V> implements Map<K, V> {
     }
 
     private ArrayMap(boolean immutable) {
-        mHashes = EmptyArray.INT;
+        // If this is immutable, use the sentinal EMPTY_IMMUTABLE_INTS
+        // instance instead of the usual EmptyArray.INT. The reference
+        // is checked later to see if the array is allowed to grow.
+        mHashes = immutable ? EMPTY_IMMUTABLE_INTS : EmptyArray.INT;
         mArray = EmptyArray.OBJECT;
         mSize = 0;
     }
-- 
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