public static Mono<Void> when(Publisher<?>... sources) {
		if (sources.length == 0) {
			return empty();
		}
		if (sources.length == 1) {
			return empty(sources[0]);
		}
		return onAssembly(new MonoWhen(false, sources));
	}
public static Mono<Void> when(Publisher<?>... sources) {
		if (sources.length == 0) {
			return empty();
		}
		if (sources.length == 1) {
			return empty(sources[0]);
		}
		return onAssembly(new MonoWhen(false, sources));
	}
public static Mono < Void > when ( Publisher < ? > ... sources ) { if ( sources . length == 0 ) { return empty ( ) ; } if ( sources . length == 1 ) { return empty ( sources [ 0 ] ) ; } return onAssembly ( new MonoWhen ( false , sources ) ) ; }
Aggregate given publishers into a new {@literal Mono} that will be fulfilled
when all of the given {@literal sources} have completed. An error will cause
pending results to be cancelled and immediate error emission to the returned {@link Mono}.
<p>
<img class="marble" src="doc-files/marbles/when.svg" alt="">
<p>
@param sources The sources to use.

@return a {@link Mono}.
Aggregate given publishers into a new { @literal Mono } that will be fulfilled when all of the given { @literal sources } have completed . An error will cause pending results to be cancelled and immediate error emission to the returned { @link Mono } . <p > <img class = marble src = doc - files / marbles / when . svg alt = > <p > @param sources The sources to use .