public boolean offer(T t) {
        if (t == null) {
            onError(new NullPointerException("onNext called with null. Null values are generally not allowed in 2.x operators and sources."));
            return true;
        }
        PublishSubscription<T>[] array = subscribers.get();

        for (PublishSubscription<T> s : array) {
            if (s.isFull()) {
                return false;
            }
        }

        for (PublishSubscription<T> s : array) {
            s.onNext(t);
        }
        return true;
    }