diff --git a/core/java/android/view/AccessibilityIterators.java b/core/java/android/view/AccessibilityIterators.java
index 9f7560c79166bc809df1b64605fccc2ccf890834..54cfc00cb5b3d866e9946e6a47f6391447b39d65 100644
--- a/core/java/android/view/AccessibilityIterators.java
+++ b/core/java/android/view/AccessibilityIterators.java
@@ -147,6 +147,9 @@ public final class AccessibilityIterators {
         @Override
         public void onConfigurationChanged(Configuration globalConfig) {
             final Locale locale = globalConfig.getLocales().get(0);
+            if (locale == null) {
+                return;
+            }
             if (!mLocale.equals(locale)) {
                 mLocale = locale;
                 onLocaleChanged(locale);