Upgrade netty to 4.1.22

broker/src/test/java/io/moquette/server/ServerLowlevelMessagesIntegrationTests.java

@@ -97,7 +97,7 @@ public class ServerLowlevelMessagesIntegrationTests {
         MqttConnectVariableHeader mqttConnectVariableHeader = new MqttConnectVariableHeader(
             MqttVersion.MQTT_3_1.protocolName(), MqttVersion.MQTT_3_1.protocolLevel(), false, false, false, 1, false,
             true, keepAlive);
-        MqttConnectPayload mqttConnectPayload = new MqttConnectPayload(clientID, null, null, null, null);
+        MqttConnectPayload mqttConnectPayload = new MqttConnectPayload(clientID, (String)null, (byte[])null, (String)null, (byte[])null);
         return new MqttConnectMessage(mqttFixedHeader, mqttConnectVariableHeader, mqttConnectPayload);
     }
 

broker/src/test/java/io/moquette/testclient/Client.java

@@ -109,7 +109,7 @@ public class Client {
         MqttConnectPayload mqttConnectPayload = new MqttConnectPayload(
                 this.clientId,
                 willTestamentTopic,
-                willTestamentMsg,
+                willTestamentMsg.getBytes(),
                 null,
                 null);
         MqttConnectMessage connectMessage = new MqttConnectMessage(