diff options
| -rw-r--r-- | services/core/java/com/android/server/utils/WatchableImpl.java | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/services/core/java/com/android/server/utils/WatchableImpl.java b/services/core/java/com/android/server/utils/WatchableImpl.java index 8a04ccf2dbc6..fec435154c83 100644 --- a/services/core/java/com/android/server/utils/WatchableImpl.java +++ b/services/core/java/com/android/server/utils/WatchableImpl.java @@ -33,6 +33,7 @@ public class WatchableImpl implements Watchable { /** * The list of observers. */ + @GuardedBy("mObservers") protected final ArrayList<Watcher> mObservers = new ArrayList<>(); /** @@ -83,7 +84,9 @@ public class WatchableImpl implements Watchable { * @return The number of registered observers. */ public int registeredObserverCount() { - return mObservers.size(); + synchronized (mObservers) { + return mObservers.size(); + } } /** |