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/connections/MqttConnectionMetrics.java

@@ -1,11 +1,23 @@
+/*
+ * Copyright (c) 2012-2017 The original author or authors
+ * ------------------------------------------------------
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Apache License v2.0 which accompanies this distribution.
+ *
+ * The Eclipse Public License is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * The Apache License v2.0 is available at
+ * http://www.opensource.org/licenses/apache2.0.php
+ *
+ * You may elect to redistribute this code under either of these licenses.
+ */
 
 package io.moquette.connections;
 
 /**
  * A class that represents the metrics of a given MQTT connection.
- *
- * @author lbarrios
- *
  */
 public class MqttConnectionMetrics {