This audit tool aims to provide help to the use of Reactive architecture in project implementations. For reminder, when applying this approach the application must use only non-blocking APIs and, as soon as possible, return the current thread to a pool, limited by the number of CPU cores. The code must also use Java 8 concurrency utility classes CompletableFuture<>` everywhere. The frameworks Play, AKKA, Scala, RxJava or Vert.x promote this approach. Now, 603 blocking methods are detected.