diff --git a/broker/src/main/java/io/moquette/server/netty/NettyMQTTHandler.java b/broker/src/main/java/io/moquette/server/netty/NettyMQTTHandler.java
index 24e3f094..f1cf944a 100644
--- a/broker/src/main/java/io/moquette/server/netty/NettyMQTTHandler.java
+++ b/broker/src/main/java/io/moquette/server/netty/NettyMQTTHandler.java
@@ -13,6 +13,7 @@
  *
  * You may elect to redistribute this code under either of these licenses.
  */
+
 package io.moquette.server.netty;
 
 import io.moquette.spi.impl.ProtocolProcessor;
@@ -22,17 +23,15 @@ import io.netty.channel.ChannelInboundHandlerAdapter;
 import io.netty.handler.codec.mqtt.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-
 import static io.netty.handler.codec.mqtt.MqttQoS.AT_MOST_ONCE;
 
-
 /**
  *
  * @author andrea
  */
 @Sharable
 public class NettyMQTTHandler extends ChannelInboundHandlerAdapter {
-    
+
     private static final Logger LOG = LoggerFactory.getLogger(NettyMQTTHandler.class);
     private final ProtocolProcessor m_processor;
 
@@ -75,22 +74,27 @@ public class NettyMQTTHandler extends ChannelInboundHandlerAdapter {
                     m_processor.processPubAck(ctx.channel(), (MqttPubAckMessage) msg);
                     break;
                 case PINGREQ:
-                    MqttFixedHeader pingHeader = new MqttFixedHeader(MqttMessageType.PINGRESP, false, AT_MOST_ONCE, false, 0);
+                    MqttFixedHeader pingHeader = new MqttFixedHeader(
+                            MqttMessageType.PINGRESP,
+                            false,
+                            AT_MOST_ONCE,
+                            false,
+                            0);
                     MqttMessage pingResp = new MqttMessage(pingHeader);
                     ctx.writeAndFlush(pingResp);
                     break;
             }
         } catch (Throwable ex) {
-			LOG.error("Exception was caught while processing MQTT message, " + ex.getCause(), ex);
-			ctx.fireExceptionCaught(ex);
+            LOG.error("Exception was caught while processing MQTT message, " + ex.getCause(), ex);
+            ctx.fireExceptionCaught(ex);
         }
     }
-    
+
     @Override
     public void channelInactive(ChannelHandlerContext ctx) throws Exception {
         String clientID = NettyUtils.clientID(ctx.channel());
         if (clientID != null && !clientID.isEmpty()) {
-			LOG.info("Notifying connection lost event. MqttClientId = {}.", clientID);
+            LOG.info("Notifying connection lost event. MqttClientId = {}.", clientID);
             m_processor.processConnectionLost(clientID, ctx.channel());
         }
         ctx.close();
@@ -98,9 +102,12 @@ public class NettyMQTTHandler extends ChannelInboundHandlerAdapter {
 
     @Override
     public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
-		LOG.error(
-				"An unexpected exception was caught while processing MQTT message. Closing Netty channel. MqttClientId = {}, cause = {}, errorMessage = {}.",
-				NettyUtils.clientID(ctx.channel()), cause.getCause(), cause.getMessage());
+        LOG.error(
+                "An unexpected exception was caught while processing MQTT message. "
+                + "Closing Netty channel. MqttClientId = {}, cause = {}, errorMessage = {}.",
+                NettyUtils.clientID(ctx.channel()),
+                cause.getCause(),
+                cause.getMessage());
         ctx.close();
     }