diff --git a/core/java/android/view/ViewGroup.java b/core/java/android/view/ViewGroup.java
index 4647f472f2a27..679da313edcc8 100644
--- a/core/java/android/view/ViewGroup.java
+++ b/core/java/android/view/ViewGroup.java
@@ -3581,7 +3581,9 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
         }
 
         structure.setChildCount(childrenCount);
-        ArrayList<View> preorderedList = buildOrderedChildList();
+        ArrayList<View> tempPreorderedList = buildOrderedChildList();
+        ArrayList<View> preorderedList =
+                tempPreorderedList != null ? new ArrayList<>(tempPreorderedList) : null;
         boolean customOrder = preorderedList == null
                 && isChildrenDrawingOrderEnabled();
         for (int i = 0; i < childrenCount; i++) {