@CheckReturnValue
    @BackpressureSupport(BackpressureKind.FULL)
    @SchedulerSupport(SchedulerSupport.NONE)
    public final ConnectableFlowable<T> publish(int bufferSize) {
        ObjectHelper.verifyPositive(bufferSize, "bufferSize");
        return FlowablePublish.create(this, bufferSize);
    }