commit cf42d60c5309ba946ed67af508f242ba714b32a9
author Steven Moreland <smoreland@google.com> Fri Dec 30 02:39:14 2022 +0000
committer Steven Moreland <smoreland@google.com> Fri Jan 06 02:29:54 2023 +0000
tree bcdfa6fc439fcebd53d81d3dcae1daa0d0401b7b
parent 28b9a29e04ee32da4627318fa71abc5a63d5654e

unregistered null callback will cause a crash later

Bug: N/A
Change-Id: I7acbc084d8a401817879d416f0283ca40e060069
Test: N/A

Tethering/src/com/android/networkstack/tethering/Tethering.java

diff --git a/Tethering/src/com/android/networkstack/tethering/Tethering.java b/Tethering/src/com/android/networkstack/tethering/Tethering.java
index b3ec805..e1b7016 100644
--- a/Tethering/src/com/android/networkstack/tethering/Tethering.java
+++ b/Tethering/src/com/android/networkstack/tethering/Tethering.java
@@ -2407,6 +2407,9 @@
 
     /** Unregister tethering event callback */
     void unregisterTetheringEventCallback(ITetheringEventCallback callback) {
+        if (callback == null) {
+            throw new NullPointerException();
+        }
         mHandler.post(() -> {
             mTetheringEventCallbacks.unregister(callback);
         });