fix Deprecated Warning

src/main/java/io/vertx/mqtt/MqttAuth.java

@@ -16,6 +16,7 @@
 
 package io.vertx.mqtt;
 
+import io.netty.util.CharsetUtil;
 import io.vertx.codegen.annotations.DataObject;
 import io.vertx.core.json.JsonObject;
 
@@ -39,6 +40,16 @@ public MqttAuth(String userName, String password) {
     this.password = password;
   }
 
+  /**
+   * Constructor
+   *
+   * @param userName MQTT client username
+   * @param passwordBytes MQTT client password
+   */
+  public MqttAuth(String userName, byte[] passwordBytes) {
+    this.userName = userName;
+    this.password = (passwordBytes  == null ? null :  new String(passwordBytes, CharsetUtil.UTF_8));;
+  }
   /**
    * Create instance from JSON
    *

src/main/java/io/vertx/mqtt/MqttWill.java

@@ -16,6 +16,7 @@
 
 package io.vertx.mqtt;
 
+import io.netty.util.CharsetUtil;
 import io.vertx.codegen.annotations.CacheReturn;
 import io.vertx.codegen.annotations.DataObject;
 import io.vertx.core.json.JsonObject;
@@ -49,6 +50,23 @@ public MqttWill(boolean isWillFlag, String willTopic, String willMessage, int wi
     this.isWillRetain = isWillRetain;
   }
 
+  /**
+   * Constructor
+   *
+   * @param isWillFlag  indicates will message presence
+   * @param willTopic    topic to publish the will
+   * @param willMessageBytes  payload of the will
+   * @param willQos      qos level for the will
+   * @param isWillRetain if the will message must be retained
+   */
+  public MqttWill(boolean isWillFlag, String willTopic, byte[] willMessageBytes, int willQos, boolean isWillRetain) {
+    this.isWillFlag = isWillFlag;
+    this.willTopic = willTopic;
+    this.willMessage = (willMessageBytes == null ? null : new String(willMessageBytes, CharsetUtil.UTF_8));
+    this.willQos = willQos;
+    this.isWillRetain = isWillRetain;
+  }
+
   /**
    * Create instance from JSON
    *

src/main/java/io/vertx/mqtt/impl/MqttClientConnection.java

@@ -91,7 +91,7 @@ void handleMessage(Object msg) {
             ByteBuf newBuf = VertxHandler.safeBuffer(publish.payload(), chctx.alloc());
 
             MqttPublishMessage mqttPublishMessage = MqttPublishMessage.create(
-              publish.variableHeader().messageId(),
+              publish.variableHeader().packetId(),
               publish.fixedHeader().qosLevel(),
               publish.fixedHeader().isDup(),
               publish.fixedHeader().isRetain(),

src/main/java/io/vertx/mqtt/impl/MqttClientImpl.java

@@ -313,19 +313,19 @@ public MqttClient publish(String topic, Buffer payload, MqttQoS qosLevel, boolea
 
     switch (qosLevel) {
       case AT_LEAST_ONCE:
-        qos1outbound.put(variableHeader.messageId(), publish);
+        qos1outbound.put(variableHeader.packetId(), publish);
         countInflightQueue++;
         break;
       case EXACTLY_ONCE:
-        qos2outbound.put(variableHeader.messageId(), publish);
+        qos2outbound.put(variableHeader.packetId(), publish);
         countInflightQueue++;
         break;
     }
 
     this.write(publish);
 
     if (publishSentHandler != null) {
-      publishSentHandler.handle(Future.succeededFuture(variableHeader.messageId()));
+      publishSentHandler.handle(Future.succeededFuture(variableHeader.packetId()));
     }
 
     return this;

src/main/java/io/vertx/mqtt/impl/MqttEndpointImpl.java

@@ -453,7 +453,7 @@ public MqttEndpointImpl publish(String topic, Buffer payload, MqttQoS qosLevel,
     this.write(publish);
 
     if (publishSentHandler != null) {
-      publishSentHandler.handle(Future.succeededFuture(variableHeader.messageId()));
+      publishSentHandler.handle(Future.succeededFuture(variableHeader.packetId()));
     }
 
     return this;

src/main/java/io/vertx/mqtt/impl/MqttServerConnection.java

@@ -127,7 +127,7 @@ synchronized void handleMessage(Object msg) {
           ByteBuf newBuf = VertxHandler.safeBuffer(publish.payload(), this.chctx.alloc());
 
           MqttPublishMessage mqttPublishMessage = MqttPublishMessage.create(
-            publish.variableHeader().messageId(),
+            publish.variableHeader().packetId(),
             publish.fixedHeader().qosLevel(),
             publish.fixedHeader().isDup(),
             publish.fixedHeader().isRetain(),
@@ -206,7 +206,7 @@ private void handleConnect(MqttConnectMessage msg) {
     MqttWill will =
       new MqttWill(msg.variableHeader().isWillFlag(),
         msg.payload().willTopic(),
-        msg.payload().willMessage(),
+        msg.payload().willMessageInBytes(),
         msg.variableHeader().willQos(),
         msg.variableHeader().isWillRetain());
 
@@ -215,7 +215,7 @@ private void handleConnect(MqttConnectMessage msg) {
       msg.variableHeader().hasPassword()) ?
       new MqttAuth(
         msg.payload().userName(),
-        msg.payload().password()) : null;
+        msg.payload().passwordInBytes()) : null;
 
     // check if remote MQTT client didn't specify a client-id
     boolean isZeroBytes = (msg.payload().clientIdentifier() == null) ||