Method error

src/main/java/io/reactivex/rxjava3/core/Maybe.java:935–941

Returns a Maybe that invokes a subscriber's MaybeObserver#onError onError method when the subscriber subscribes to it. Scheduler:

(@NonNull Throwable throwable)

     * @see <a href="http://reactivex.io/documentation/operators/empty-never-throw.html">ReactiveX operators documentation: Throw</a>
     */
    @CheckReturnValue
    @NonNull
    @SchedulerSupport(SchedulerSupport.NONE)
    public static <@NonNull T> Maybe<T> error(@NonNull Throwable throwable) {
        Objects.requireNonNull(throwable, "throwable is null");
        return RxJavaPlugins.onAssembly(new MaybeError<>(throwable));
    }

    /**
     * Returns a {@code Maybe} that invokes a {@link MaybeObserver}'s {@link MaybeObserver#onError onError} method when the