src/main/java/io/reactivex/Completable.java
@CheckReturnValue
    @SchedulerSupport(SchedulerSupport.NONE)
    public static Completable never() {
        return RxJavaPlugins.onAssembly(CompletableNever.INSTANCE);
    }
@CheckReturnValue
    @SchedulerSupport(SchedulerSupport.NONE)
    public static Completable never() {
        return RxJavaPlugins.onAssembly(CompletableNever.INSTANCE);
    }
@ CheckReturnValue @ SchedulerSupport ( SchedulerSupport . NONE ) public static Completable never ( ) { return RxJavaPlugins . onAssembly ( CompletableNever . INSTANCE ) ; }
Returns a Completable that never calls onError or onComplete.
<p>
<img width="640" height="512" src="https://raw.github.com/wiki/ReactiveX/RxJava/images/rx-operators/Completable.never.png" alt="">
<dl>
<dt><b>Scheduler:</b></dt>
<dd>{@code never} does not operate by default on a particular {@link Scheduler}.</dd>
</dl>
@return the singleton instance that never calls onError or onComplete
Returns a Completable that never calls onError or onComplete . <p > <img width = 640 height = 512 src = https : // raw . github . com / wiki / ReactiveX / RxJava / images / rx - operators / Completable . never . png alt = > <dl > <dt > <b > Scheduler : < / b > < / dt > <dd > {