Checkstyle and friends

config/checkstyle/checkstyle.xml

@@ -42,7 +42,7 @@
       <property name="allowNonPrintableEscapes" value="true"/>
     </module>
     <module name="LineLength">
-      <property name="max" value="100"/>
+      <property name="max" value="120"/>
       <property name="ignorePattern"
         value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
     </module>

proxy/src/main/java/com/velocitypowered/proxy/command/builtin/ServerCommand.java

@@ -118,7 +118,6 @@ public class ServerCommand implements SimpleCommand {
       playersTextComponent = Component.translatable("velocity.command.server-tooltip-players-online");
     }
     playersTextComponent = playersTextComponent.args(Component.text(connectedPlayers));
-    String playersText = server.getPlayersConnected().size() + " player(s) online";
     if (serverInfo.getName().equals(currentPlayerServer)) {
       serverTextComponent = serverTextComponent.color(NamedTextColor.GREEN)
           .hoverEvent(

proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java

@@ -268,6 +268,12 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player {
     return connection.getProtocolVersion();
   }
 
+  /**
+   * Translates the message in the user's locale.
+   *
+   * @param message the message to translate
+   * @return the translated message
+   */
   public Component translateMessage(Component message) {
     Locale locale = ClosestLocaleMatcher.INSTANCE
         .lookupClosest(this.settings == null ? Locale.getDefault() : this.settings.getLocale());

proxy/src/main/java/com/velocitypowered/proxy/util/ClosestLocaleMatcher.java

@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.velocitypowered.proxy.util;
 
 import com.github.benmanes.caffeine.cache.Caffeine;
@@ -21,6 +38,11 @@ public class ClosestLocaleMatcher {
         });
   }
 
+  /**
+   * Registers a known locale.
+   *
+   * @param locale locale to register
+   */
   public void registerKnown(final Locale locale) {
     if (locale.getLanguage().equals(new Locale("zh").getLanguage())) {
       return;