title: Spring Reactive in void methods
body: <p>I am facing difficulties in understand reactive stream principles, and getting problem with a simple solution that is easy solved by java 8 streams.
  I would like to do this:</p>
  
  <pre><code>class service{
  public void add(List&lt;Car&gt; cars){
   cars.parallelStream.forEach(car -&gt; repo.add(car));
  }
  </code></pre>
  
  <p>using Spring Reactor implementation.
  I saw many examples on internet but usually with object mapping or something like this.</p>