1 files changed, 4 insertions, 2 deletions
diff --git a/core/java/android/util/MapCollections.java b/core/java/android/util/MapCollections.java
index a5212688c6c6..7ab3fcaeedc4 100644
--- a/core/java/android/util/MapCollections.java
+++ b/core/java/android/util/MapCollections.java
@@ -16,6 +16,8 @@
 
 package android.util;
 
+import android.annotation.Nullable;
+
 import java.lang.reflect.Array;
 import java.util.Collection;
 import java.util.Iterator;
@@ -249,7 +251,7 @@ abstract class MapCollections<K, V> {
         }
 
         @Override
-        public boolean equals(Object object) {
+        public boolean equals(@Nullable Object object) {
             return equalsSetHelper(this, object);
         }
 
@@ -339,7 +341,7 @@ abstract class MapCollections<K, V> {
         }
 
         @Override
-        public boolean equals(Object object) {
+        public boolean equals(@Nullable Object object) {
             return equalsSetHelper(this, object);
         }