class CompletableCache extends Completable implements CompletableObserver {

    @Override
    public void onError(Throwable e) {
        error = e;
        for (InnerCompletableCache inner : observers.getAndSet(TERMINATED)) {
            if (!inner.get()) {
                inner.actual.onError(e);
            }
        }
    }

    public  CompletableCache(CompletableSource source);

}