- private static final AtomicIntegerFieldUpdater<ListenerWalker> CLOSED_UPDATER = AtomicIntegerFieldUpdater.newUpdater(ListenerWalker.class, "closed");
- private final Lock lock;
- private final ListenerNode node;
-
- // Used via CLOSED_UPDATER
- @SuppressWarnings("unused")
- private volatile int closed = 0;