This closes #3468

artemis-core-client/src/main/java/org/apache/activemq/artemis/core/client/impl/ServerLocatorImpl.java

@@ -1546,20 +1546,22 @@ public final class ServerLocatorImpl implements ServerLocatorInternal, Discovery
       if (receivedTopology) {
          return;
       }
-      TransportConfiguration[] newInitialconnectors = (TransportConfiguration[]) Array.newInstance(TransportConfiguration.class, newConnectors.size());
 
-      int count = 0;
+      final List<TransportConfiguration> newInitialconnectors = new ArrayList<>(newConnectors.size());
+
       for (DiscoveryEntry entry : newConnectors) {
-         newInitialconnectors[count++] = entry.getConnector();
-
          if (ha && topology.getMember(entry.getNodeID()) == null) {
             TopologyMemberImpl member = new TopologyMemberImpl(entry.getNodeID(), null, null, entry.getConnector(), null);
             // on this case we set it as zero as any update coming from server should be accepted
             topology.updateMember(0, entry.getNodeID(), member);
          }
+         // ignore its own transport connector
+         if (!entry.getConnector().equals(clusterTransportConfiguration)) {
+            newInitialconnectors.add(entry.getConnector());
+         }
       }
 
-      this.initialConnectors = newInitialconnectors.length == 0 ? null : newInitialconnectors;
+      this.initialConnectors = newInitialconnectors.toArray(new TransportConfiguration[newInitialconnectors.size()]);
 
       if (clusterConnection && !receivedTopology && this.getNumInitialConnectors() > 0) {
          // The node is alone in the cluster. We create a connection to the new node

artemis-server/src/main/java/org/apache/activemq/artemis/core/server/cluster/ClusterController.java

@@ -158,15 +158,17 @@ public class ClusterController implements ActiveMQComponent {
    /**
     * add a locator for a cluster connection.
     *
-    * @param name   the cluster connection name
+    * @param name                the cluster connection name
-    * @param dg     the discovery group to use
+    * @param dg                  the discovery group to use
-    * @param config the cluster connection config
+    * @param config              the cluster connection config
+    * @param connector           the cluster connector configuration
     */
    public void addClusterConnection(SimpleString name,
                                     DiscoveryGroupConfiguration dg,
-                                    ClusterConnectionConfiguration config) {
+                                    ClusterConnectionConfiguration config,
+                                    TransportConfiguration connector) {
       ServerLocatorImpl serverLocator = (ServerLocatorImpl) ActiveMQClient.createServerLocatorWithHA(dg);
-      configAndAdd(name, serverLocator, config);
+      configAndAdd(name, serverLocator, config, connector);
    }
 
    /**
@@ -179,12 +181,13 @@ public class ClusterController implements ActiveMQComponent {
                                     TransportConfiguration[] tcConfigs,
                                     ClusterConnectionConfiguration config) {
       ServerLocatorImpl serverLocator = (ServerLocatorImpl) ActiveMQClient.createServerLocatorWithHA(tcConfigs);
-      configAndAdd(name, serverLocator, config);
+      configAndAdd(name, serverLocator, config, null);
    }
 
    private void configAndAdd(SimpleString name,
                              ServerLocatorInternal serverLocator,
-                             ClusterConnectionConfiguration config) {
+                             ClusterConnectionConfiguration config,
+                             TransportConfiguration connector) {
       serverLocator.setConnectionTTL(config.getConnectionTTL());
       serverLocator.setClientFailureCheckPeriod(config.getClientFailureCheckPeriod());
       //if the cluster isn't available we want to hang around until it is
@@ -198,6 +201,9 @@ public class ClusterController implements ActiveMQComponent {
       //this is used for replication so need to use the server packet decoder
       serverLocator.setProtocolManagerFactory(ActiveMQServerSideProtocolManagerFactory.getInstance(serverLocator, server.getStorageManager()));
       serverLocator.setThreadPools(server.getThreadPool(), server.getScheduledPool());
+      if (connector != null) {
+         serverLocator.setClusterTransportConfiguration(connector);
+      }
       try {
          serverLocator.initialize();
       } catch (Exception e) {

artemis-server/src/main/java/org/apache/activemq/artemis/core/server/cluster/ClusterManager.java

@@ -609,7 +609,7 @@ public final class ClusterManager implements ActiveMQComponent {
 
          clusterConnection = new ClusterConnectionImpl(this, dg, connector, new SimpleString(config.getName()), new SimpleString(config.getAddress() != null ? config.getAddress() : ""), config.getMinLargeMessageSize(), config.getClientFailureCheckPeriod(), config.getConnectionTTL(), config.getRetryInterval(), config.getRetryIntervalMultiplier(), config.getMaxRetryInterval(), config.getInitialConnectAttempts(), config.getReconnectAttempts(), config.getCallTimeout(), config.getCallFailoverTimeout(), config.isDuplicateDetection(), config.getMessageLoadBalancingType(), config.getConfirmationWindowSize(), config.getProducerWindowSize(), executorFactory, server, postOffice, managementService, scheduledExecutor, config.getMaxHops(), nodeManager, server.getConfiguration().getClusterUser(), server.getConfiguration().getClusterPassword(), config.isAllowDirectConnectionsOnly(), config.getClusterNotificationInterval(), config.getClusterNotificationAttempts());
 
-         clusterController.addClusterConnection(clusterConnection.getName(), dg, config);
+         clusterController.addClusterConnection(clusterConnection.getName(), dg, config, connector);
       } else {
          TransportConfiguration[] tcConfigs = config.getTransportConfigurations(configuration);