editorconfig: max line length set

max line length warnings removed
missing Copyright added
useless publics removed
unmaintainable Javadoc tags: @author removed
helper class warnings removed
field default value initialization removed
Multiple warnings removed
pref: checkstyle warnings removed
Checkstyle will fail the build process if it detects violations
switch default cases error logger added

broker/src/main/java/io/moquette/server/netty/NettyMQTTHandler.java

@@ -25,10 +25,6 @@ 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 {
 
@@ -83,6 +79,9 @@ public class NettyMQTTHandler extends ChannelInboundHandlerAdapter {
                     MqttMessage pingResp = new MqttMessage(pingHeader);
                     ctx.writeAndFlush(pingResp);
                     break;
+                default:
+                    LOG.error("Unkonwn MessageType:{}", messageType);
+                    break;
             }
         } catch (Throwable ex) {
             LOG.error("Exception was caught while processing MQTT message, " + ex.getCause(), ex);