Merge "Fix TetheringServiceTest#testTetheringManagerLeak flaky"
diff --git a/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringServiceTest.java b/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringServiceTest.java
index e114cb5..38f1e9c 100644
--- a/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringServiceTest.java
+++ b/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringServiceTest.java
@@ -664,17 +664,17 @@
assertEquals("Internal callback is not registered", 1, callbacks.size());
assertNotNull(weakTm.get());
+ // Calling System.gc() or System.runFinalization() doesn't guarantee GCs or finalizers
+ // are executed synchronously. The finalizer is called after GC on a separate thread.
final int attempts = 100;
final long waitIntervalMs = 50;
for (int i = 0; i < attempts; i++) {
forceGc();
- if (weakTm.get() == null) break;
+ if (weakTm.get() == null && callbacks.size() == 0) break;
Thread.sleep(waitIntervalMs);
}
- assertNull("TetheringManager weak reference still not null after " + attempts
- + " attempts", weakTm.get());
-
+ assertNull("TetheringManager weak reference is not null", weakTm.get());
assertEquals("Internal callback is not unregistered", 0, callbacks.size());
});
}