#22903 Fix code snippeds

* move scala and java sources out of paradox sources
* replace relative paths with $code$ and $akka$
* fix broken includes

akka-docs/src/main/java/jdocs/camel/Forwarder.java

@@ -0,0 +1,24 @@
+package jdocs.camel;
+//#RouteResponse
+import akka.actor.ActorRef;
+import akka.camel.javaapi.UntypedProducerActor;
+
+public class Forwarder extends UntypedProducerActor {
+  private String uri;
+  private ActorRef target;
+
+  public Forwarder(String uri, ActorRef target) {
+    this.uri = uri;
+    this.target = target;
+  }
+
+  public String getEndpointUri() {
+    return uri;
+  }
+
+  @Override
+  public void onRouteResponse(Object message) {
+    target.forward(message, getContext());
+  }
+}
+//#RouteResponse