diff --git a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/DmfController.java b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/DmfController.java
index d0385ce4a..8f0a69eed 100644
--- a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/DmfController.java
+++ b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/DmfController.java
@@ -116,4 +116,9 @@ public class DmfController {
     public void removeAttribute(final String key) {
         this.attributes.remove(key);
     }
+
+    public void thingCreated() {
+        log.debug(LOG_PREFIX + "Thing created.", getTenantId(), getControllerId());
+        dmfSender.createOrUpdateThing(getTenantId(), getControllerId());
+    }
 }
\ No newline at end of file
diff --git a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/DmfTenant.java b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/DmfTenant.java
index 777b1be77..e6ede88ff 100644
--- a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/DmfTenant.java
+++ b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/DmfTenant.java
@@ -9,6 +9,7 @@
  */
 package org.eclipse.hawkbit.sdk.dmf;
 
+import java.util.Collections;
 import java.util.Map;
 import java.util.Optional;
 import java.util.concurrent.ConcurrentHashMap;
@@ -22,8 +23,7 @@ import org.eclipse.hawkbit.sdk.dmf.amqp.VHost;
 import org.springframework.amqp.core.Message;
 
 /**
- * An in-memory simulated DMF Tenant to hold the controller twins in
- * memory and be able to retrieve them again.
+ * An in-memory simulated DMF Tenant to hold the controller twins in memory and be able to retrieve them again.
  */
 public class DmfTenant {
 
@@ -31,7 +31,6 @@ public class DmfTenant {
     private final Tenant tenant;
 
     private final Map<String, DmfController> controllers = new ConcurrentHashMap<>();
-    private final Amqp amqp;
     private final VHost vHost;
 
     public DmfTenant(final Tenant tenant, final Amqp amqp) {
@@ -40,7 +39,6 @@ public class DmfTenant {
 
     public DmfTenant(final Tenant tenant, final Amqp amqp, final boolean initVHost) {
         this.tenant = tenant;
-        this.amqp = amqp;
         this.vHost = amqp.getVhost(tenant.getDmf(), initVHost);
         this.vHost.register(this);
     }
@@ -68,6 +66,10 @@ public class DmfTenant {
         return Optional.ofNullable(controllers.get(controllerId));
     }
 
+    public Map<String, DmfController> controllers() {
+        return Collections.unmodifiableMap(controllers);
+    }
+
     public void ping(final String correlationId, final BiConsumer<String, Message> listener) {
         vHost.ping(tenant.getTenantId(), correlationId, listener);
     }
diff --git a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/amqp/DmfSender.java b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/amqp/DmfSender.java
index 3e3cd4cc2..f98c27a77 100644
--- a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/amqp/DmfSender.java
+++ b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/amqp/DmfSender.java
@@ -40,6 +40,7 @@ import org.springframework.util.ObjectUtils;
 public class DmfSender {
 
     protected final RabbitTemplate rabbitTemplate;
+
     private static final byte[] EMPTY_BODY = new byte[0];
     private final AmqpProperties amqpProperties;
     private final ConcurrentHashMap<String, BiConsumer<String, Message>> pingListeners = new ConcurrentHashMap<>();
diff --git a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/amqp/VHost.java b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/amqp/VHost.java
index f467e6178..46094dd3b 100644
--- a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/amqp/VHost.java
+++ b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/amqp/VHost.java
@@ -49,6 +49,7 @@ import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
 public class VHost extends DmfSender implements MessageListener {
 
     private static final String REGEX_EXTRACT_ACTION_ID = "[^0-9]";
+
     private final SimpleMessageListenerContainer container;
     private final ConcurrentHashMap<String, DmfTenant> dmfTenants = new ConcurrentHashMap<>();
     private final Set<Long> openActions = Collections.synchronizedSet(new HashSet<>());
@@ -269,13 +270,11 @@ public class VHost extends DmfSender implements MessageListener {
     }
 
     /**
-     * Convert a message body to a given class and set the message header
-     * AbstractJavaTypeMapper.DEFAULT_CLASSID_FIELD_NAME for Jackson converter.
+     * Convert a message body to a given class and set the message header AbstractJavaTypeMapper.DEFAULT_CLASSID_FIELD_NAME for Jackson converter.
      */
     @SuppressWarnings("unchecked")
     private <T> T convertMessage(final Message message, final Class<T> clazz) {
-        message.getMessageProperties().getHeaders().put(AbstractJavaTypeMapper.DEFAULT_CLASSID_FIELD_NAME,
-                clazz.getTypeName());
+        message.getMessageProperties().getHeaders().put(AbstractJavaTypeMapper.DEFAULT_CLASSID_FIELD_NAME, clazz.getTypeName());
         return (T) rabbitTemplate.getMessageConverter().fromMessage(message);
     }
 }
\ No newline at end of file
diff --git a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/health/HealthService.java b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/health/HealthService.java
index da9ec32ee..b2c73421a 100644
--- a/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/health/HealthService.java
+++ b/hawkbit-sdk/hawkbit-sdk-dmf/src/main/java/org/eclipse/hawkbit/sdk/dmf/health/HealthService.java
@@ -15,19 +15,17 @@ import java.util.HashSet;
 import java.util.Set;
 import java.util.UUID;
 
+import lombok.extern.slf4j.Slf4j;
 import org.eclipse.hawkbit.sdk.dmf.DmfTenant;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.springframework.amqp.core.Message;
 import org.springframework.scheduling.annotation.Scheduled;
 
 /**
  * Handle all incoming Messages from hawkBit update server.
  */
+@Slf4j
 public class HealthService {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(HealthService.class);
-
     private final Collection<DmfTenant> dmfTenants;
 
     private final Set<String> openPings = Collections.synchronizedSet(new HashSet<>());
@@ -39,22 +37,22 @@ public class HealthService {
     @Scheduled(fixedDelay = 5_000, initialDelay = 5_000)
     void checkDmfHealth() {
         if (openPings.size() > 5) {
-            LOGGER.error("Currently {} open pings! DMF does not seem to be reachable.", openPings.size());
+            log.error("Currently {} open pings! DMF does not seem to be reachable.", openPings.size());
         } else {
-            LOGGER.debug("Currently {} open pings", openPings.size());
+            log.debug("Currently {} open pings", openPings.size());
         }
 
         dmfTenants.forEach(tenant -> {
             final String correlationId = UUID.randomUUID().toString();
             openPings.add(correlationId);
-            LOGGER.debug("Ping tenant {} with correlationId {}", tenant, correlationId);
+            log.debug("Ping tenant {} with correlationId {}", tenant, correlationId);
             tenant.ping(correlationId, this::pingReceived);
         });
     }
 
     void pingReceived(final String correlationId, final Message message) {
         if (!openPings.remove(correlationId)) {
-            LOGGER.error("Unknown PING_RESPONSE received for correlationId: {}.", correlationId);
+            log.error("Unknown PING_RESPONSE received for correlationId: {}.", correlationId);
         }
     }
 }
\ No newline at end of file