src/main/java/io/reactivex/Flowable.java
@BackpressureSupport(BackpressureKind.UNBOUNDED_IN)
    @SchedulerSupport(SchedulerSupport.NONE)
    public final Disposable subscribe() {
        return subscribe(Functions.emptyConsumer(), Functions.ON_ERROR_MISSING,
                Functions.EMPTY_ACTION, FlowableInternalHelper.RequestMax.INSTANCE);
    }
@BackpressureSupport(BackpressureKind.UNBOUNDED_IN)
    @SchedulerSupport(SchedulerSupport.NONE)
    public final Disposable subscribe() {
        return subscribe(Functions.emptyConsumer(), Functions.ON_ERROR_MISSING,
                Functions.EMPTY_ACTION, FlowableInternalHelper.RequestMax.INSTANCE);
    }
@ BackpressureSupport ( BackpressureKind . UNBOUNDED_IN ) @ SchedulerSupport ( SchedulerSupport . NONE ) public final Disposable subscribe ( ) { return subscribe ( Functions . emptyConsumer ( ) , Functions . ON_ERROR_MISSING , Functions . EMPTY_ACTION , FlowableInternalHelper . RequestMax . INSTANCE ) ; }
Subscribes to a Publisher and ignores {@code onNext} and {@code onComplete} emissions.
<p>
If the Flowable emits an error, it is wrapped into an
{@link io.reactivex.exceptions.OnErrorNotImplementedException OnErrorNotImplementedException}
and routed to the RxJavaPlugins.onError handler.
<dl>
<dt><b>Backpressure:</b></dt>
<dd>The operator consumes the source {@code Publisher} in an unbounded manner (i.e., no
backpressure is applied to it).</dd>
<dt><b>Scheduler:</b></dt>
<dd>{@code subscribe} does not operate by default on a particular {@link Scheduler}.</dd>
</dl>

@return a {@link Disposable} reference with which the caller can stop receiving items before
the Publisher has finished sending them
@see <a href="http://reactivex.io/documentation/operators/subscribe.html">ReactiveX operators documentation: Subscribe</a>
Subscribes to a Publisher and ignores { @code onNext } and { @code onComplete } emissions . <p > If the Flowable emits an error it is wrapped into an { @link io . reactivex . exceptions . OnErrorNotImplementedException OnErrorNotImplementedException } and routed to the RxJavaPlugins . onError handler . <dl > <dt > <b > Backpressure : < / b > < / dt > <dd > The operator consumes the source { @code Publisher } in an unbounded manner ( i . e . no backpressure is applied to it ) . < / dd > <dt > <b > Scheduler : < / b > < / dt > <dd > { @code subscribe } does not operate by default on a particular { @link Scheduler } . < / dd > < / dl >