@Test
  public void demonstrateTheProgrammaticAPI() {
    // #programmatic
    ActorSystem system = ActorSystem.create("example");

    // Get the Serialization Extension
    Serialization serialization = SerializationExtension.get(system);

    // Have something to serialize
    String original = "woohoo";

    // Find the Serializer for it
    Serializer serializer = serialization.findSerializerFor(original);

    // Turn it into bytes
    byte[] bytes = serializer.toBinary(original);

    // Turn it back into an object,
    // the nulls are for the class manifest and for the classloader
    String back = (String) serializer.fromBinary(bytes);

    // Voilá!
    assertEquals(original, back);

    // #programmatic
    system.shutdown();
  }
  @Test
  public void serializeActorRefs() {
    final ActorSystem theActorSystem = ActorSystem.create("whatever");
    final ActorRef theActorRef = theActorSystem.deadLetters(); // Of course this should be you

    // #actorref-serializer
    // Serialize
    // (beneath toBinary)
    final Address transportAddress = Serialization.currentTransportAddress().value();
    String identifier;

    // If there is no transportAddress,
    // it means that either this Serializer isn't called
    // within a piece of code that sets it,
    // so either you need to supply your own,
    // or simply use the local path.
    if (transportAddress == null) identifier = theActorRef.path().toString();
    else identifier = theActorRef.path().toStringWithAddress(transportAddress);
    // Then just serialize the identifier however you like

    // Deserialize
    // (beneath fromBinary)
    final ActorRef deserializedActorRef = theActorSystem.actorFor(identifier);
    // Then just use the ActorRef
    // #actorref-serializer
    theActorSystem.shutdown();
  }
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 @Test
 public void testingWithoutParent() {
   TestProbe probe = new TestProbe(system);
   ActorRef child = system.actorOf(Props.create(DependentChild.class, probe.ref()));
   probe.send(child, "ping");
   probe.expectMsg("pong");
 }
 public void demonstrateDefaultAddress() {
   // this is not meant to be run, only to be compiled
   final ActorSystem system = ActorSystem.create();
   final Address remoteAddr = new Address("", "");
   // #external-address-default
   final Address addr = DefaultAddress.ID.get(system).getAddress();
   // #external-address-default
 }
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  @Test
  public void fabricatedParentTestsItsChildResponses() throws Exception {
    // didn't put final on these in order to make the parent fit in one line in the html docs
    // #test-fabricated-parent
    TestProbe proxy = new TestProbe(system);
    ActorRef parent = system.actorOf(Props.create(new FabricatedParentCreator(proxy)));

    proxy.send(parent, "ping");
    proxy.expectMsg("pong");
    // #test-fabricated-parent
  }
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 public void exampleProdActorFactoryFunction() throws Exception {
   // #child-maker-prod
   Function<ActorRefFactory, ActorRef> maker =
       new Function<ActorRefFactory, ActorRef>() {
         @Override
         public ActorRef apply(ActorRefFactory f) throws Exception {
           return f.actorOf(Props.create(Child.class));
         }
       };
   ActorRef parent = system.actorOf(Props.create(GenericDependentParent.class, maker));
   // #child-maker-prod
 }
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 @Test
 public void testingWithChildProbe() throws Exception {
   final TestProbe probe = new TestProbe(system);
   // #child-maker-test
   Function<ActorRefFactory, ActorRef> maker =
       new Function<ActorRefFactory, ActorRef>() {
         @Override
         public ActorRef apply(ActorRefFactory param) throws Exception {
           return probe.ref();
         }
       };
   ActorRef parent = system.actorOf(Props.create(GenericDependentParent.class, maker));
   // #child-maker-test
   probe.send(parent, "pingit");
   probe.expectMsg("ping");
 }