Revert "Revert "Checkng upper bound in *Array classes.""

This reverts commit 91ec97056451753d6db55d310fc93fbd93c61cb3.

Reason for revert: b/128433495

Change-Id: I4aac43f6aacd594f9c2bf58db9fbc4a1395d8888

1 files changed, 8 insertions, 0 deletions

diff --git a/core/java/android/util/SparseLongArray.java b/core/java/android/util/SparseLongArray.java
index 81db2b7ff715..37a92024f374 100644
--- a/core/java/android/util/SparseLongArray.java
+++ b/core/java/android/util/SparseLongArray.java
@@ -182,6 +182,10 @@ public class SparseLongArray implements Cloneable {
      * key.</p>
      */
     public int keyAt(int index) {
+        if (index >= mSize) {
+            // The array might be slightly bigger than mSize, in which case, indexing won't fail.
+            throw new ArrayIndexOutOfBoundsException(index);
+        }
         return mKeys[index];
     }
 
@@ -197,6 +201,10 @@ public class SparseLongArray implements Cloneable {
      * associated with the largest key.</p>
      */
     public long valueAt(int index) {
+        if (index >= mSize) {
+            // The array might be slightly bigger than mSize, in which case, indexing won't fail.
+            throw new ArrayIndexOutOfBoundsException(index);
+        }
         return mValues[index];
     }