Merge "Fix NPE of NativeTombstoneManager.TombstoneWatcher" into main am: 8bbd22b4 am: 154710d4

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2758848



Change-Id: I83d6bc4636517ab4df14f87e756be603cff6ebe3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

services/core/java/com/android/server/os/NativeTombstoneManager.java

@@ -567,6 +567,10 @@ public final class NativeTombstoneManager {
 
         @Override
         public void onEvent(int event, @Nullable String path) {
+            if (path == null) {
+                Slog.w(TAG, "path is null at TombstoneWatcher.onEvent()");
+                return;
+            }
             mHandler.post(() -> {
                 // Ignore .tmp files.
                 if (path.endsWith(".tmp")) {