Merge pull request #24562 from rch/patch-1

Deprecated method used in docs

akka-docs/src/test/java/jdocs/circuitbreaker/DangerousJavaActor.java

@@ -27,7 +27,7 @@ public class DangerousJavaActor extends AbstractActor {
     this.breaker = new CircuitBreaker(
       getContext().dispatcher(), getContext().system().scheduler(),
       5, Duration.create(10, "s"), Duration.create(1, "m"))
-      .onOpen(this::notifyMeOnOpen);
+      .addOnOpenListener(this::notifyMeOnOpen);
   }
 
   public void notifyMeOnOpen() {