Revert "wtf"

This reverts commit 50219cc4a9.

src/main/java/fr/xephi/authme/initialization/OnStartupTasks.java

@@ -1,5 +1,6 @@
 package fr.xephi.authme.initialization;
 
+import com.github.Anon8281.universalScheduler.UniversalRunnable;
 import fr.xephi.authme.AuthMe;
 import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.datasource.DataSource;
@@ -18,7 +19,6 @@ import org.bstats.bukkit.Metrics;
 import org.bstats.charts.SimplePie;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
-import org.bukkit.scheduler.BukkitRunnable;
 
 import javax.inject.Inject;
 import java.util.List;
@@ -96,7 +96,7 @@ public class OnStartupTasks {
         if (!settings.getProperty(RECALL_PLAYERS)) {
             return;
         }
-        bukkitService.runTaskTimerAsynchronously(new BukkitRunnable() {
+        bukkitService.runTaskTimerAsynchronously(new UniversalRunnable() {
             @Override
             public void run() {
                 List<String> loggedPlayersWithEmptyMail = dataSource.getLoggedPlayersWithEmptyMail();

src/main/java/fr/xephi/authme/initialization/TaskCloser.java

@@ -25,6 +25,7 @@ public class TaskCloser implements Runnable {
 
     @Override
     public void run() {
+        scheduler.cancelTasks();
         if (dataSource != null) {
             dataSource.closeConnection();
         }