*.txt

modified   messaging/api/src/main/java/org/wildfly/swarm/messaging/MessagingFraction.java
@@ -32,11 +32,24 @@ public class MessagingFraction extends MessagingActiveMQ<MessagingFraction> impl
     }
 
     public MessagingFraction defaultServer() {
-        if (this.defaultServer == null) {
-            this.defaultServer = server("default", EnhancedServer::enableInVm);
+        if (getOrCreateDefaultServer() != null) {
+            server("default", EnhancedServer::enableInVm);
         }
 
-        return this.defaultServer;
+        return this;
+    }
+
+    public MessagingFraction defaultServer(EnhancedServerConsumer config) {
+        config.accept(getOrCreateDefaultServer());
+
+        return this;
+    }
+
+    private EnhancedServer getOrCreateDefaultServer() {
+        return (EnhancedServer)subresources().servers().stream()
+                .filter(s -> "default".equals(s.getKey()))
+                .findFirst()
+                .orElse(null);
     }
 
     public MessagingFraction server(String childKey, EnhancedServerConsumer consumer) {