/guava/android/guava/src/com/google/common/util/concurrent/AbstractFuture.java
return UNSAFE.compareAndSwapObject ( future, LISTENERS_OFFSET, expect, update ) ;
boolean casWaiters( AbstractFuture<?> future, @CheckForNull Waiter expect, @CheckForNull Waiter update) { return UNSAFE.compareAndSwapObject(future, WAITERS_OFFSET, expect, update); } @Override boolean casListeners(AbstractFuture<?> future, @CheckForNull Listener expect, Listener update) { <extra_id_0> } @Override Listener gasListeners(AbstractFuture<?> future, Listener update) { while (true) { Listener listener = future.listeners; if (update == listener) {