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Commit 283159d1 authored by Michael W's avatar Michael W
Browse files

SystemUI: KeyGuardMonitor: Prevent ConcurrentModificationException 

* Instead of accessing the original ArrayList, which might be modified
  while processing the loop, create a copy of the list and work with that
  one
* This ensures that no exception is thrown when some other part unregisters
  its listener while the list is already being processed

BUGBASH-1289

Change-Id: Ie8404d88c7c87c4ec8fcd64fdd5218b25806f24f
parent 612b8472

packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyguardMonitor.java

+3 −1
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2014 The Android Open Source Project

 * Copyright (C) 2017 The LineageOS Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.
@@ -127,7 +128,8 @@ public final class KeyguardMonitor extends KeyguardUpdateMonitorCallback { 
    }



    private void notifyKeyguardChanged() {

        for (Callback callback : mCallbacks) {

        ArrayList<Callback> callbacks = new ArrayList<Callback>(mCallbacks);

        for (Callback callback : callbacks) {

            callback.onKeyguardChanged();

        }

    }