* This method can return null, and List.addAll(null) will throw NPE. Fix it. Change-Id: I4e5fc719209dbfbce785b1e0b07588e2406203ea
* This method can return null, and List.addAll(null) will throw NPE. Fix it. Change-Id: I4e5fc719209dbfbce785b1e0b07588e2406203ea