Updater should not be running on the main thread

Fixes #1957

Changelog.txt

@@ -8,6 +8,7 @@ Key:
   - Removal
 
 Version 1.5.01-dev
+ = Fixed bug where the Updater was running on the main thread.
 
 Version 1.5.00
  + Added Podzol & Red Sand to Excavation

src/main/java/com/gmail/nossr50/mcMMO.java

@@ -29,11 +29,11 @@ import com.gmail.nossr50.listeners.InventoryListener;
 import com.gmail.nossr50.listeners.PlayerListener;
 import com.gmail.nossr50.listeners.SelfListener;
 import com.gmail.nossr50.listeners.WorldListener;
-import com.gmail.nossr50.locale.LocaleLoader;
 import com.gmail.nossr50.metrics.MetricsManager;
 import com.gmail.nossr50.party.PartyManager;
 import com.gmail.nossr50.runnables.CheckDateTask;
 import com.gmail.nossr50.runnables.SaveTimerTask;
+import com.gmail.nossr50.runnables.UpdaterResultAsyncTask;
 import com.gmail.nossr50.runnables.backups.CleanBackupsTask;
 import com.gmail.nossr50.runnables.database.UserPurgeTask;
 import com.gmail.nossr50.runnables.party.PartyAutoKickTask;
@@ -57,9 +57,6 @@ import com.gmail.nossr50.util.experience.FormulaManager;
 import com.gmail.nossr50.util.player.UserManager;
 import com.gmail.nossr50.util.scoreboards.ScoreboardManager;
 
-import net.gravitydevelopment.updater.mcmmo.Updater;
-import net.gravitydevelopment.updater.mcmmo.Updater.UpdateResult;
-import net.gravitydevelopment.updater.mcmmo.Updater.UpdateType;
 import net.shatteredlands.shatt.backup.ZipLibrary;
 
 public class mcMMO extends JavaPlugin {
@@ -258,6 +255,10 @@ public class mcMMO extends JavaPlugin {
         return updateAvailable;
     }
 
+    public void setUpdateAvailable(boolean available) {
+        this.updateAvailable = available;
+    }
+
     public boolean isXPEventEnabled() {
         return xpEventEnabled;
     }
@@ -377,21 +378,7 @@ public class mcMMO extends JavaPlugin {
             return;
         }
 
-        Updater updater = new Updater(this, 31030, mcmmo, UpdateType.NO_DOWNLOAD, false);
-
-        if (updater.getResult() != UpdateResult.UPDATE_AVAILABLE) {
-            this.updateAvailable = false;
-            return;
-        }
-
-        if (updater.getLatestType().equals("beta") && !Config.getInstance().getPreferBeta()) {
-            this.updateAvailable = false;
-            return;
-        }
-
-        this.updateAvailable = true;
-        getLogger().info(LocaleLoader.getString("UpdateChecker.Outdated"));
-        getLogger().info(LocaleLoader.getString("UpdateChecker.NewAvailable"));
+        new UpdaterResultAsyncTask(this).runTaskAsynchronously(mcMMO.p);
     }
 
     private void loadConfigFiles() {

src/main/java/com/gmail/nossr50/runnables/UpdaterResultAsyncTask.java

@@ -0,0 +1,36 @@
+package com.gmail.nossr50.runnables;
+
+import org.bukkit.scheduler.BukkitRunnable;
+
+import com.gmail.nossr50.mcMMO;
+import com.gmail.nossr50.config.Config;
+import com.gmail.nossr50.locale.LocaleLoader;
+
+import net.gravitydevelopment.updater.mcmmo.Updater;
+
+public class UpdaterResultAsyncTask extends BukkitRunnable {
+    private mcMMO plugin;
+
+    public UpdaterResultAsyncTask(mcMMO plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public void run() {
+        Updater updater = new Updater(plugin, 31030, plugin.mcmmo, Updater.UpdateType.NO_DOWNLOAD, false);
+
+        if (updater.getResult() != Updater.UpdateResult.UPDATE_AVAILABLE) {
+            plugin.setUpdateAvailable(false);
+            return;
+        }
+
+        if (updater.getLatestType().equals("beta") && !Config.getInstance().getPreferBeta()) {
+            plugin.setUpdateAvailable(false);
+            return;
+        }
+
+        plugin.setUpdateAvailable(true);
+        plugin.getLogger().info(LocaleLoader.getString("UpdateChecker.Outdated"));
+        plugin.getLogger().info(LocaleLoader.getString("UpdateChecker.NewAvailable"));
+    }
+}