Change users being updated async and refactor update task

bukkit/src/main/java/me/lucko/luckperms/LPBukkitPlugin.java

@@ -55,12 +55,12 @@ public class LPBukkitPlugin extends JavaPlugin implements LuckPermsPlugin {
         groupManager = new GroupManager(this);
 
         // Run update task to refresh any online users
-        new UpdateTask(this).run();
+        runUpdateTask();
 
         int mins = getConfiguration().getSyncTime();
         if (mins > 0) {
             long ticks = mins * 60 * 20;
-            new UpdateTask(this).runTaskTimer(this, ticks, ticks);
+            getServer().getScheduler().runTaskTimerAsynchronously(this, new UpdateTask(this), ticks, ticks);
         }
 
         // Provide vault support
@@ -111,6 +111,6 @@ public class LPBukkitPlugin extends JavaPlugin implements LuckPermsPlugin {
 
     @Override
     public void runUpdateTask() {
-        new UpdateTask(this).runTask(this);
+        getServer().getScheduler().runTaskAsynchronously(this, new UpdateTask(this));
     }
 }

bukkit/src/main/java/me/lucko/luckperms/runnables/UpdateTask.java

@@ -1,25 +0,0 @@
-package me.lucko.luckperms.runnables;
-
-import lombok.AllArgsConstructor;
-import me.lucko.luckperms.LPBukkitPlugin;
-import org.bukkit.Bukkit;
-import org.bukkit.entity.Player;
-import org.bukkit.scheduler.BukkitRunnable;
-
-@AllArgsConstructor
-public class UpdateTask extends BukkitRunnable {
-    private final LPBukkitPlugin plugin;
-
-    @Override
-    public void run() {
-        plugin.getLogger().info("Running update task.");
-
-        // Re-load all of the groups
-        plugin.getGroupManager().loadAllGroups();
-
-        // Refresh all online users.
-        for (Player p : Bukkit.getOnlinePlayers()) {
-            plugin.getDatastore().loadUser(p.getUniqueId(), success -> {});
-        }
-    }
-}

bukkit/src/main/java/me/lucko/luckperms/users/BukkitUserManager.java

@@ -50,4 +50,11 @@ public class BukkitUserManager extends UserManager {
     public User makeUser(UUID uuid, String username) {
         return new BukkitUser(uuid, username, plugin);
     }
+
+    @Override
+    public void updateAllUsers() {
+        for (Player p : plugin.getServer().getOnlinePlayers()) {
+            plugin.getDatastore().loadUser(p.getUniqueId());
+        }
+    }
 }