diff --git a/src/main/java/fr/xephi/authme/AuthMe.java b/src/main/java/fr/xephi/authme/AuthMe.java
index 73f95689..81f56f37 100644
--- a/src/main/java/fr/xephi/authme/AuthMe.java
+++ b/src/main/java/fr/xephi/authme/AuthMe.java
@@ -195,7 +195,7 @@ public class AuthMe extends JavaPlugin {
 
         // Schedule clean up task
         CleanupTask cleanupTask = injector.getSingleton(CleanupTask.class);
-        cleanupTask.runTaskTimerAsynchronously(this, CLEANUP_INTERVAL, CLEANUP_INTERVAL);
+        getScheduler().runTaskTimerAsynchronously(cleanupTask, CLEANUP_INTERVAL, CLEANUP_INTERVAL);
         // Do a backup on start
         backupService.doBackup(BackupService.BackupCause.START);
         // Set up Metrics
diff --git a/src/main/java/fr/xephi/authme/command/executable/authme/FirstSpawnCommand.java b/src/main/java/fr/xephi/authme/command/executable/authme/FirstSpawnCommand.java
index 3bd0c101..7bd7d7cc 100644
--- a/src/main/java/fr/xephi/authme/command/executable/authme/FirstSpawnCommand.java
+++ b/src/main/java/fr/xephi/authme/command/executable/authme/FirstSpawnCommand.java
@@ -1,13 +1,12 @@
 package fr.xephi.authme.command.executable.authme;
 
-import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.command.PlayerCommand;
 import fr.xephi.authme.settings.Settings;
 import fr.xephi.authme.settings.SpawnLoader;
 import fr.xephi.authme.settings.properties.SecuritySettings;
 import fr.xephi.authme.util.TeleportUtils;
 import org.bukkit.entity.Player;
-import fr.xephi.authme.AuthMe;
+
 import javax.inject.Inject;
 import java.util.List;
 
diff --git a/src/main/java/fr/xephi/authme/listener/DoubleLoginFixListener.java b/src/main/java/fr/xephi/authme/listener/DoubleLoginFixListener.java
index 2c0370a4..09399234 100644
--- a/src/main/java/fr/xephi/authme/listener/DoubleLoginFixListener.java
+++ b/src/main/java/fr/xephi/authme/listener/DoubleLoginFixListener.java
@@ -23,7 +23,7 @@ public class DoubleLoginFixListener implements Listener {
     @EventHandler
     public void onPlayerJoin(PlayerJoinEvent event) {
         Collection<? extends Player> PlayerList = Bukkit.getServer().getOnlinePlayers();
-        HashSet<String> PlayerSet = new HashSet<String>();
+        HashSet<String> PlayerSet = new HashSet<>();
         for (Player ep : PlayerList) {
             if (PlayerSet.contains(ep.getName().toLowerCase())) {
                 ep.kickPlayer(service.retrieveSingleMessage(ep.getPlayer(), MessageKey.DOUBLE_LOGIN_FIX));
diff --git a/src/main/java/fr/xephi/authme/listener/PlayerListener.java b/src/main/java/fr/xephi/authme/listener/PlayerListener.java
index db95dd36..fc12bab9 100644
--- a/src/main/java/fr/xephi/authme/listener/PlayerListener.java
+++ b/src/main/java/fr/xephi/authme/listener/PlayerListener.java
@@ -1,6 +1,5 @@
 package fr.xephi.authme.listener;
 
-import fr.xephi.authme.AuthMe;
 import fr.xephi.authme.api.v3.AuthMeApi;
 import fr.xephi.authme.data.QuickCommandsProtectionManager;
 import fr.xephi.authme.data.auth.PlayerAuth;
@@ -22,7 +21,6 @@ import fr.xephi.authme.settings.properties.RegistrationSettings;
 import fr.xephi.authme.settings.properties.RestrictionSettings;
 import fr.xephi.authme.settings.properties.SecuritySettings;
 import fr.xephi.authme.util.TeleportUtils;
-import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.Location;
 import org.bukkit.entity.HumanEntity;
@@ -32,7 +30,6 @@ import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.SignChangeEvent;
 import org.bukkit.event.entity.EntityDamageByEntityEvent;
-//import org.bukkit.event.entity.EntityPickupItemEvent;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryOpenEvent;
 import org.bukkit.event.player.AsyncPlayerChatEvent;
@@ -54,17 +51,15 @@ import org.bukkit.event.player.PlayerMoveEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
 import org.bukkit.event.player.PlayerRespawnEvent;
 import org.bukkit.event.player.PlayerShearEntityEvent;
-//import org.bukkit.event.player.PlayerSwapHandItemsEvent;
 import org.bukkit.inventory.InventoryView;
 
-import static org.bukkit.Bukkit.getServer;
-
 import javax.inject.Inject;
 import java.util.Locale;
 import java.util.Set;
 
 import static fr.xephi.authme.settings.properties.RestrictionSettings.ALLOWED_MOVEMENT_RADIUS;
 import static fr.xephi.authme.settings.properties.RestrictionSettings.ALLOW_UNAUTHED_MOVEMENT;
+import static org.bukkit.Bukkit.getServer;
 
 /**
  * Listener class for player events.
diff --git a/src/main/java/fr/xephi/authme/listener/protocollib/InventoryPacketAdapter.java b/src/main/java/fr/xephi/authme/listener/protocollib/InventoryPacketAdapter.java
index 929c81f8..c83b992b 100644
--- a/src/main/java/fr/xephi/authme/listener/protocollib/InventoryPacketAdapter.java
+++ b/src/main/java/fr/xephi/authme/listener/protocollib/InventoryPacketAdapter.java
@@ -34,7 +34,6 @@ import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
 
-import java.lang.reflect.InvocationTargetException;
 import java.util.Arrays;
 import java.util.List;
 
diff --git a/src/main/java/fr/xephi/authme/service/GeoIpService.java b/src/main/java/fr/xephi/authme/service/GeoIpService.java
index a18f9758..bf7252ff 100644
--- a/src/main/java/fr/xephi/authme/service/GeoIpService.java
+++ b/src/main/java/fr/xephi/authme/service/GeoIpService.java
@@ -1,9 +1,6 @@
 package fr.xephi.authme.service;
 
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.hash.HashCode;
-import com.google.common.hash.HashFunction;
-import com.google.common.hash.Hashing;
 import com.maxmind.db.GeoIp2Provider;
 import com.maxmind.db.Reader;
 import com.maxmind.db.Reader.FileMode;
@@ -13,32 +10,16 @@ import com.maxmind.db.model.CountryResponse;
 import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.initialization.DataFolder;
 import fr.xephi.authme.output.ConsoleLoggerFactory;
-import fr.xephi.authme.settings.Settings;
-import fr.xephi.authme.settings.properties.ProtectionSettings;
-import fr.xephi.authme.util.FileUtils;
 import fr.xephi.authme.util.InternetProtocolUtils;
 
 import javax.inject.Inject;
-import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.IOException;
-import java.net.HttpURLConnection;
 import java.net.InetAddress;
-import java.net.URL;
 import java.net.UnknownHostException;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.StandardCopyOption;
-import java.nio.file.attribute.FileTime;
-import java.time.Duration;
-import java.time.Instant;
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
-import java.time.format.DateTimeFormatter;
-import java.util.Base64;
-import java.util.Objects;
 import java.util.Optional;
-import java.util.zip.GZIPInputStream;
 
 public class GeoIpService {
 
diff --git a/src/main/java/fr/xephi/authme/service/ValidationService.java b/src/main/java/fr/xephi/authme/service/ValidationService.java
index 7f612ca1..7db299af 100644
--- a/src/main/java/fr/xephi/authme/service/ValidationService.java
+++ b/src/main/java/fr/xephi/authme/service/ValidationService.java
@@ -22,19 +22,16 @@ import fr.xephi.authme.util.Utils;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
-import java.io.DataInputStream;
-import java.net.HttpURLConnection;
-import java.net.ProtocolException;
-import java.net.URL;
-import java.util.Arrays;
 import javax.annotation.PostConstruct;
 import javax.inject.Inject;
+import java.io.DataInputStream;
+import java.net.HttpURLConnection;
 import java.net.InetSocketAddress;
+import java.net.URL;
 import java.util.Collection;
 import java.util.List;
 import java.util.Locale;
 import java.util.Set;
-import java.util.concurrent.TimeoutException;
 import java.util.regex.Pattern;
 
 import static fr.xephi.authme.util.StringUtils.isInsideString;
diff --git a/src/main/java/fr/xephi/authme/settings/properties/RestrictionSettings.java b/src/main/java/fr/xephi/authme/settings/properties/RestrictionSettings.java
index 639a0021..2a7472e3 100644
--- a/src/main/java/fr/xephi/authme/settings/properties/RestrictionSettings.java
+++ b/src/main/java/fr/xephi/authme/settings/properties/RestrictionSettings.java
@@ -4,8 +4,6 @@ import ch.jalu.configme.Comment;
 import ch.jalu.configme.SettingsHolder;
 import ch.jalu.configme.properties.Property;
 
-import java.util.Collections;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Set;