Experimenting with Conversations

# Conflicts:
#	src/main/java/net/sacredlabyrinth/phaed/simpleclans/SimpleClans.java

pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>net.sacredlabyrinth.phaed.simpleclans</groupId>
     <artifactId>SimpleClans</artifactId>
@@ -85,6 +86,10 @@
                             <pattern>com.google.gson</pattern>
                             <shadedPattern>net.sacredlabyrinth.phaed.simpleclans.gson</shadedPattern>
                         </relocation>
+                        <relocation>
+                            <pattern>com.tcoded.folialib</pattern>
+                            <shadedPattern>net.sacredlabyrinth.phaed.simpleclans.folialib</shadedPattern>
+                        </relocation>
                     </relocations>
                     <artifactSet>
                         <excludes>
@@ -94,7 +99,8 @@
 
                     <transformers>
                         <!-- Avoid overlapping MANIFEST.MF file -->
-                        <transformer implementation="org.apache.maven.plugins.shade.resource.DontIncludeResourceTransformer">
+                        <transformer
+                                implementation="org.apache.maven.plugins.shade.resource.DontIncludeResourceTransformer">
                             <resource>MANIFEST.MF</resource>
                         </transformer>
                     </transformers>
@@ -261,6 +267,12 @@
             <artifactId>gson</artifactId>
             <version>2.10.1</version>
         </dependency>
+        <dependency>
+            <groupId>com.tcoded</groupId>
+            <artifactId>FoliaLib</artifactId>
+            <version>0.5.1</version>
+            <scope>compile</scope>
+        </dependency>
 
         <!--    Test frameworks    -->
         <dependency>
@@ -311,6 +323,10 @@
             <id>eldonexus</id>
             <url>https://eldonexus.de/repository/maven-public</url>
         </repository>
+        <repository>
+            <id>tcoded-releases</id>
+            <url>https://repo.tcoded.com/releases</url>
+        </repository>
         <repository>
             <id>jitpack.io</id>
             <url>https://jitpack.io</url>

src/main/java/net/sacredlabyrinth/phaed/simpleclans/Clan.java

@@ -1440,10 +1440,10 @@ public class Clan implements Serializable, Comparable<Clan> {
 
         SimpleClans.getInstance().getRequestManager().removeRequest(getTag());
 
-        SimpleClans.getInstance().getServer().getScheduler().scheduleSyncDelayedTask(SimpleClans.getInstance(), () -> {
+        SimpleClans.getInstance().getScheduler().runNextTick(task -> {
             SimpleClans.getInstance().getClanManager().removeClan(getTag());
             SimpleClans.getInstance().getStorageManager().deleteClan(this);
-        }, 1);
+        });
     }
 
     public void disband() {

src/main/java/net/sacredlabyrinth/phaed/simpleclans/SimpleClans.java

@@ -1,6 +1,8 @@
 package net.sacredlabyrinth.phaed.simpleclans;
 
 import co.aikar.commands.BukkitCommandIssuer;
+import com.tcoded.folialib.FoliaLib;
+import com.tcoded.folialib.impl.PlatformScheduler;
 import net.sacredlabyrinth.phaed.simpleclans.commands.SCCommandManager;
 import net.sacredlabyrinth.phaed.simpleclans.hooks.papi.SimpleClansExpansion;
 import net.sacredlabyrinth.phaed.simpleclans.language.LanguageResource;
@@ -65,6 +67,7 @@ public class SimpleClans extends JavaPlugin {
 
     private BankLogger bankLogger;
     private TagValidator tagValidator;
+    private FoliaLib foliaLib;
 
     /**
      * @return the logger
@@ -100,6 +103,7 @@ public class SimpleClans extends JavaPlugin {
     @Override
     public void onEnable() {
         instance = this;
+        foliaLib = new FoliaLib(this);
         new LanguageMigration(this).migrate();
         settingsManager = new SettingsManager(this);
         new BbMigration(settingsManager);
@@ -206,6 +210,14 @@ public class SimpleClans extends JavaPlugin {
         getSettingsManager().loadAndSave();
     }
 
+    // TODO Replace this with getFoliaLib#getScheduler?
+    public PlatformScheduler getScheduler() {
+        return foliaLib.getScheduler();
+    }
+
+    public FoliaLib getFoliaLib() {
+        return foliaLib;
+    }
     /**
      * @return the clanManager
      */

src/main/java/net/sacredlabyrinth/phaed/simpleclans/chat/handlers/SpigotChatHandler.java

@@ -21,31 +21,28 @@ public class SpigotChatHandler implements ChatHandler {
         /*
           TODO: Make it async, change Type to Channel in 3.0
         */
-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                ChatEvent event = new ChatEvent(message.getContent(), message.getSender(), message.getReceivers(),
-                        ChatEvent.Type.valueOf(message.getChannel().name()));
+        plugin.getScheduler().runLater(() -> {
+            ChatEvent event = new ChatEvent(message.getContent(), message.getSender(), message.getReceivers(),
+                    ChatEvent.Type.valueOf(message.getChannel().name()));
 
-                getPluginManager().callEvent(event);
-                if (event.isCancelled()) {
-                    return;
-                }
-                message.setContent(stripColorsAndFormatsPerPermission(message.getSender(),event.getMessage()));
-
-                ConfigField configField = ConfigField.valueOf(String.format("%sCHAT_FORMAT",
-                        message.getSource() == DISCORD ? "DISCORD" : message.getChannel()));
-
-                String format = settingsManager.getString(configField);
-                String formattedMessage = chatManager.parseChatFormat(format, message, event.getPlaceholders());
-
-                plugin.getLogger().info(ChatUtils.stripColors(formattedMessage));
-
-                for (ClanPlayer cp : message.getReceivers()) {
-                    ChatBlock.sendMessage(cp, formattedMessage);
-                }
+            getPluginManager().callEvent(event);
+            if (event.isCancelled()) {
+                return;
             }
-        }.runTask(plugin);
+            message.setContent(stripColorsAndFormatsPerPermission(message.getSender(),event.getMessage()));
+
+            ConfigField configField = ConfigField.valueOf(String.format("%sCHAT_FORMAT",
+                    message.getSource() == DISCORD ? "DISCORD" : message.getChannel()));
+
+            String format = settingsManager.getString(configField);
+            String formattedMessage = chatManager.parseChatFormat(format, message, event.getPlaceholders());
+
+            plugin.getLogger().info(ChatUtils.stripColors(formattedMessage));
+
+            for (ClanPlayer cp : message.getReceivers()) {
+                ChatBlock.sendMessage(cp, formattedMessage);
+            }
+        }, 0);
     }
 
     private String stripColorsAndFormatsPerPermission(ClanPlayer sender, String message) {

src/main/java/net/sacredlabyrinth/phaed/simpleclans/commands/data/Kills.java

@@ -27,19 +27,16 @@ public class Kills extends Sendable {
 
     @Override
     public void send() {
-        plugin.getStorageManager().getKillsPerPlayer(polled, data -> new BukkitRunnable() {
-            @Override
-            public void run() {
-                if (data.isEmpty()) {
-                    ChatBlock.sendMessage(player, ChatColor.RED + lang("nokillsfound", player));
-                    return;
-                }
-                configureAndSendHeader();
-                addLines(data);
-
-                sendBlock();
+        plugin.getStorageManager().getKillsPerPlayer(polled, data -> plugin.getScheduler().runAtEntity(player, task -> {
+            if (data.isEmpty()) {
+                ChatBlock.sendMessage(player, ChatColor.RED + lang("nokillsfound", player));
+                return;
             }
-        }.runTask(plugin));
+            configureAndSendHeader();
+            addLines(data);
+
+            sendBlock();
+        }));
     }
 
     private void addLines(Map<String, Integer> data) {

src/main/java/net/sacredlabyrinth/phaed/simpleclans/commands/data/MostKilled.java

@@ -25,25 +25,22 @@ public class MostKilled extends Sendable {
 
     @Override
     public void send() {
-        plugin.getStorageManager().getMostKilled(data -> new BukkitRunnable() {
-            @Override
-            public void run() {
-                if (data.isEmpty()) {
-                    ChatBlock.sendMessage(player, RED + lang("nokillsfound", player));
-                    return;
-                }
-
-                sendHeader();
-
-                Map<String, Integer> killsPerPlayer = Helper.sortByValue(data);
-
-                for (Map.Entry<String, Integer> attackerVictim : killsPerPlayer.entrySet()) {
-                    addLine(attackerVictim);
-                }
-
-                sendBlock();
+        plugin.getStorageManager().getMostKilled(data -> plugin.getScheduler().runAtEntity(player, task -> {
+            if (data.isEmpty()) {
+                ChatBlock.sendMessage(player, RED + lang("nokillsfound", player));
+                return;
             }
-        }.runTask(plugin));
+
+            sendHeader();
+
+            Map<String, Integer> killsPerPlayer = Helper.sortByValue(data);
+
+            for (Map.Entry<String, Integer> attackerVictim : killsPerPlayer.entrySet()) {
+                addLine(attackerVictim);
+            }
+
+            sendBlock();
+        }));
     }
 
     private void addLine(Map.Entry<String, Integer> attackerVictim) {

src/main/java/net/sacredlabyrinth/phaed/simpleclans/conversation/CreateClanNamePrompt.java

@@ -49,7 +49,7 @@ public class CreateClanNamePrompt extends StringPrompt {
         if (errorPrompt != null) return errorPrompt;
 
         String finalClanName = clanName;
-        Bukkit.getScheduler().runTask(plugin, () -> {
+        plugin.getScheduler().runNextTick((task) -> {
             String tag = (String) context.getSessionData(TAG_KEY);
             //noinspection ConstantConditions
             PreCreateClanEvent event = new PreCreateClanEvent(player, tag, finalClanName);

src/main/java/net/sacredlabyrinth/phaed/simpleclans/conversation/SCConversation.java

@@ -1,5 +1,6 @@
 package net.sacredlabyrinth.phaed.simpleclans.conversation;
 
+import net.sacredlabyrinth.phaed.simpleclans.SimpleClans;
 import org.bukkit.conversations.Conversable;
 import org.bukkit.conversations.Conversation;
 import org.bukkit.conversations.ConversationCanceller;
@@ -48,6 +49,10 @@ public class SCConversation extends Conversation {
     }
 
     public void addConversationCanceller(@NotNull ConversationCanceller canceller) {
+        // not supported yet by Folia, https://github.com/PaperMC/Folia/issues/216
+        if (SimpleClans.getInstance().getFoliaLib().isFolia()) {
+            return;
+        }
         canceller.setConversation(this);
         cancellers.add(canceller);
     }

src/main/java/net/sacredlabyrinth/phaed/simpleclans/listeners/SCPlayerListener.java

@@ -120,7 +120,7 @@ public class SCPlayerListener extends SCListener {
         ClanPlayer cp = plugin.getClanManager().getClanPlayer(event.getPlayer());
         if (cp != null) {
             Clan clan = Objects.requireNonNull(cp.getClan());
-            Bukkit.getScheduler().runTask(plugin, () -> {
+            plugin.getScheduler().runNextTick((task) -> {
                 if (clan.getOnlineMembers().isEmpty()) {
                     plugin.getProtectionManager().setWarExpirationTime(cp.getClan(),
                             settingsManager.getMinutes(WAR_DISCONNECT_EXPIRATION_TIME));

src/main/java/net/sacredlabyrinth/phaed/simpleclans/managers/ProtectionManager.java

@@ -1,5 +1,6 @@
 package net.sacredlabyrinth.phaed.simpleclans.managers;
 
+import com.tcoded.folialib.wrapper.task.WrappedTask;
 import net.sacredlabyrinth.phaed.simpleclans.Clan;
 import net.sacredlabyrinth.phaed.simpleclans.ClanPlayer;
 import net.sacredlabyrinth.phaed.simpleclans.SimpleClans;
@@ -14,7 +15,6 @@ import org.bukkit.Location;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.World;
 import org.bukkit.entity.Player;
-import org.bukkit.scheduler.BukkitTask;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -32,7 +32,7 @@ public class ProtectionManager {
     private final SettingsManager settingsManager;
     private final ClanManager clanManager;
     private final Logger logger;
-    private final Map<War, BukkitTask> wars = new HashMap<>();
+    private final Map<War, WrappedTask> wars = new HashMap<>();
     private final List<ProtectionProvider> providers = new ArrayList<>();
     private LandProtection landProtection;
     private final SimpleClans plugin;
@@ -46,7 +46,7 @@ public class ProtectionManager {
             return;
         }
         //running on next tick, so all plugins are already loaded
-        Bukkit.getScheduler().runTask(plugin, this::registerProviders);
+        plugin.getScheduler().runNextTick((task) -> registerProviders()) ;
         clearWars();
     }
 
@@ -149,11 +149,10 @@ public class ProtectionManager {
         return true;
     }
 
-    @Nullable
-    private BukkitTask scheduleTask(@NotNull War war, int expirationTime) {
-        BukkitTask timeoutTask = null;
+    private WrappedTask scheduleTask(@NotNull War war, int expirationTime) {
+        WrappedTask timeoutTask = null;
         if (expirationTime > 0) {
-            timeoutTask = Bukkit.getScheduler().runTaskLater(plugin, new WarTimeoutTask(war), expirationTime);
+            timeoutTask = plugin.getScheduler().runLater(() -> new WarTimeoutTask(war),  expirationTime);
         }
         return timeoutTask;
     }
@@ -162,12 +161,12 @@ public class ProtectionManager {
         if (expirationTime < 1) {
             return;
         }
-        for (Map.Entry<War, BukkitTask> entry : wars.entrySet()) {
+        for (Map.Entry<War, WrappedTask> entry : wars.entrySet()) {
             War war = entry.getKey();
             if (!war.getClans().contains(clan)) {
                 continue;
             }
-            BukkitTask task = entry.getValue();
+            WrappedTask task = entry.getValue();
             if (task != null && !task.isCancelled()) {
                 task.cancel();
             }

src/main/java/net/sacredlabyrinth/phaed/simpleclans/managers/RequestManager.java

@@ -442,26 +442,21 @@ public final class RequestManager {
      * Starts the task that asks for the votes of all requests
      */
     public void askerTask() {
-        new BukkitRunnable() {
-
-            @Override
-            public void run() {
-                for (Iterator<Map.Entry<String, Request>> iter = requests.entrySet().iterator(); iter.hasNext(); ) {
-                    Request req = iter.next().getValue();
-
-                    if (req == null) {
-                        continue;
-                    }
-
-                    if (req.reachedRequestLimit()) {
-                        iter.remove();
-                    }
-
-                    ask(req);
-                    req.incrementAskCount();
+        plugin.getScheduler().runTimerAsync(() -> {
+            for (Iterator<Map.Entry<String, Request>> iter = requests.entrySet().iterator(); iter.hasNext(); ) {
+                Request req = iter.next().getValue();
+                if (req == null) {
+                    continue;
                 }
+
+                if (req.reachedRequestLimit()) {
+                    iter.remove();
+                }
+
+                ask(req);
+                req.incrementAskCount();
             }
-        }.runTaskTimerAsynchronously(plugin, 0, plugin.getSettingsManager().getSeconds(REQUEST_FREQUENCY));
+        }, 0, plugin.getSettingsManager().getSeconds(REQUEST_FREQUENCY));
     }
 
     /**
@@ -488,6 +483,6 @@ public final class RequestManager {
             }
         }
 
-        Bukkit.getScheduler().runTask(plugin, () -> Bukkit.getPluginManager().callEvent(new RequestEvent(req)));
+        plugin.getScheduler().runNextTick((task) -> Bukkit.getPluginManager().callEvent(new RequestEvent(req)));
     }
 }

src/main/java/net/sacredlabyrinth/phaed/simpleclans/managers/StorageManager.java

@@ -718,12 +718,7 @@ public final class StorageManager {
      */
     @Deprecated
     public void updateClanAsync(final Clan clan) {
-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                updateClan(clan);
-            }
-        }.runTaskAsynchronously(plugin);
+        plugin.getScheduler().runAsync(task -> updateClan(clan));
     }
 
     /**
@@ -732,12 +727,7 @@ public final class StorageManager {
      * @param cp to update
      */
     public void updatePlayerNameAsync(final @NotNull ClanPlayer cp) {
-    	new BukkitRunnable() {
-			@Override
-			public void run() {
-                updatePlayerName(cp);
-			}
-		}.runTaskAsynchronously(plugin);
+        plugin.getScheduler().runAsync(task -> updatePlayerName(cp));
     }
 
     /**
@@ -1032,13 +1022,7 @@ public final class StorageManager {
      * @param callback the callback
      */
     public void getMostKilled(DataCallback<Map<String, Integer>> callback) {
-    	new BukkitRunnable() {
-
-			@Override
-			public void run() {
-				callback.onResultReady(getMostKilled());
-			}
-		}.runTaskAsynchronously(plugin);
+        plugin.getScheduler().runAsync(task -> callback.onResultReady(getMostKilled()));
     }
 
     /**
@@ -1046,12 +1030,7 @@ public final class StorageManager {
      *
      */
     public void getKillsPerPlayer(final String playerName, final DataCallback<Map<String, Integer>> callback) {
-    	new BukkitRunnable() {
-			@Override
-			public void run() {
-				callback.onResultReady(getKillsPerPlayer(playerName));
-			}
-		}.runTaskAsynchronously(plugin);
+        plugin.getScheduler().runAsync(task -> callback.onResultReady(getKillsPerPlayer(playerName)));
     }
 
     /**

src/main/java/net/sacredlabyrinth/phaed/simpleclans/managers/TeleportManager.java

@@ -1,6 +1,5 @@
 package net.sacredlabyrinth.phaed.simpleclans.managers;
 
-import io.papermc.lib.PaperLib;
 import net.sacredlabyrinth.phaed.simpleclans.*;
 import net.sacredlabyrinth.phaed.simpleclans.events.ClanPlayerTeleportEvent;
 import net.sacredlabyrinth.phaed.simpleclans.utils.VanishUtils;
@@ -80,7 +79,7 @@ public final class TeleportManager {
     }
 
     public void teleportToHome(@NotNull Player player, @NotNull Location destination, @NotNull String clanName) {
-        PaperLib.teleportAsync(player, getSafe(destination), PlayerTeleportEvent.TeleportCause.COMMAND).thenAccept(result -> {
+        plugin.getScheduler().teleportAsync(player, getSafe(destination), PlayerTeleportEvent.TeleportCause.COMMAND).thenAccept(result -> {
             if (result) {
                 ChatBlock.sendMessage(player, AQUA + lang("now.at.homebase", player, clanName));
             } else {
@@ -151,7 +150,7 @@ public final class TeleportManager {
     }
 
     private void startCounter() {
-        plugin.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, () -> {
+        plugin.getScheduler().runTimer(() -> {
             waitingPlayers.values().removeIf(ts -> ts.getPlayer() == null);
             for (Iterator<TeleportState> iter = waitingPlayers.values().iterator(); iter.hasNext(); ) {
                 TeleportState state = iter.next();
@@ -175,7 +174,7 @@ public final class TeleportManager {
 
                 state.setProcessing(false);
             }
-        }, 0, 20L);
+        }, 0, 20);
     }
 
     private void teleport(TeleportState state) {

src/main/java/net/sacredlabyrinth/phaed/simpleclans/proxy/BungeeManager.java

@@ -59,7 +59,7 @@ public final class BungeeManager implements ProxyManager, PluginMessageListener
         }
         Bukkit.getMessenger().registerOutgoingPluginChannel(plugin, "BungeeCord");
         Bukkit.getMessenger().registerIncomingPluginChannel(plugin, "BungeeCord", this);
-        Bukkit.getScheduler().runTaskTimer(plugin, this::requestPlayerList, 0, 60 * 20);
+        plugin.getScheduler().runTimer(this::requestPlayerList, 0, 60 * 20);
         requestServerName();
     }
 
@@ -212,7 +212,7 @@ public final class BungeeManager implements ProxyManager, PluginMessageListener
     }
 
     private void requestServerName() {
-        Bukkit.getScheduler().runTaskTimer(plugin, task -> {
+        plugin.getScheduler().runTimer(task -> {
             if (!serverName.isEmpty()) {
                 task.cancel();
                 return;

src/main/java/net/sacredlabyrinth/phaed/simpleclans/storage/DBCore.java

@@ -38,6 +38,7 @@ public interface DBCore {
 
     /**
      * Execute a select statement
+     *
      * @param query the query
      * @return the result set or null if the query failed
      */
@@ -52,6 +53,7 @@ public interface DBCore {
 
     /**
      * Execute a statement
+     *
      * @param query the query
      * @return true if the statement was executed
      */
@@ -67,6 +69,7 @@ public interface DBCore {
 
     /**
      * Check whether a table exists
+     *
      * @param table the table
      * @return true if the table exists
      */
@@ -83,7 +86,7 @@ public interface DBCore {
     /**
      * Check whether a column exists
      *
-     * @param table the table
+     * @param table  the table
      * @param column the column
      * @return true if the column exists
      */
@@ -112,7 +115,7 @@ public interface DBCore {
             }
         };
         if (plugin.getSettingsManager().is(ConfigField.PERFORMANCE_USE_THREADS)) {
-            Bukkit.getScheduler().runTaskAsynchronously(plugin, executeUpdate);
+            plugin.getScheduler().runLaterAsync(executeUpdate, 0);
         } else {
             executeUpdate.run();
         }

src/main/java/net/sacredlabyrinth/phaed/simpleclans/tasks/CollectFeeTask.java

@@ -35,8 +35,8 @@ public class CollectFeeTask extends BukkitRunnable {
     	int hour = sm.getInt(TASKS_COLLECT_FEE_HOUR);
     	int minute = sm.getInt(TASKS_COLLECT_FEE_MINUTE);
         long delay = Helper.getDelayTo(hour, minute);
-        
-        this.runTaskTimer(plugin, delay * 20, 86400 * 20);
+
+        plugin.getScheduler().runTimer(this, delay * 20, 86400 * 20);
     }
     
     /**

src/main/java/net/sacredlabyrinth/phaed/simpleclans/tasks/CollectUpkeepTask.java

@@ -35,7 +35,7 @@ public class CollectUpkeepTask extends BukkitRunnable {
     	int minute = settingsManager.getInt(TASKS_COLLECT_UPKEEP_MINUTE);
         long delay = Helper.getDelayTo(hour, minute);
 
-        this.runTaskTimer(plugin, delay * 20, 86400 * 20);
+        plugin.getScheduler().runTimerAsync(this, delay * 20, 86400 * 20);
     }
 
     /**

src/main/java/net/sacredlabyrinth/phaed/simpleclans/tasks/PlayerHeadCacheTask.java

@@ -27,7 +27,7 @@ public class PlayerHeadCacheTask extends BukkitRunnable {
      */
     public void start() {
         int hour = 3600;
-        this.runTaskTimerAsynchronously(plugin, 0, (hour + 60) * 20);
+        plugin.getScheduler().runTimerAsync(this, 0, (hour + 60) * 20);
     }
 
     @Override

src/main/java/net/sacredlabyrinth/phaed/simpleclans/tasks/SaveDataTask.java

@@ -19,7 +19,7 @@ public class SaveDataTask extends BukkitRunnable {
      */
 	public void start() {
 		long interval = plugin.getSettingsManager().getMinutes(PERFORMANCE_SAVE_INTERVAL);
-		runTaskTimerAsynchronously(plugin, interval, interval);
+		plugin.getScheduler().runTimerAsync(this, interval, interval);
 	}
 
 	@Override

src/main/java/net/sacredlabyrinth/phaed/simpleclans/tasks/UpkeepWarningTask.java

@@ -31,8 +31,7 @@ public class UpkeepWarningTask extends BukkitRunnable {
     	int hour = sm.getInt(TASKS_COLLECT_UPKEEP_WARNING_HOUR);
     	int minute = sm.getInt(TASKS_COLLECT_UPKEEP_WARNING_MINUTE);
         long delay = Helper.getDelayTo(hour, minute);
-        
-		this.runTaskTimer(plugin, delay * 20, 86400 * 20);
+        plugin.getScheduler().runTimer(this, delay * 20, 86400 * 20);
     }
 
     /**

src/main/java/net/sacredlabyrinth/phaed/simpleclans/ui/InventoryController.java

@@ -25,6 +25,7 @@ import java.util.*;
 
 import static net.sacredlabyrinth.phaed.simpleclans.SimpleClans.lang;
 import static net.sacredlabyrinth.phaed.simpleclans.managers.SettingsManager.ConfigField.COMMANDS_CLAN;
+import static org.bukkit.plugin.java.JavaPlugin.getPlugin;
 
 /**
  *
@@ -91,7 +92,7 @@ public class InventoryController implements Listener {
 		}
 
 		Runnable finalListener = listener;
-		Bukkit.getScheduler().runTask(SimpleClans.getInstance(), () -> {
+		SimpleClans.getInstance().getScheduler().runAtEntity(entity, task -> {
 			ItemStack currentItem = event.getCurrentItem();
 			if (currentItem == null) return;
 
@@ -177,21 +178,17 @@ public class InventoryController implements Listener {
 		SimpleClans plugin = SimpleClans.getInstance();
 		String baseCommand = plugin.getSettingsManager().getString(COMMANDS_CLAN);
 		String finalCommand = String.format("%s %s ", baseCommand, subcommand) + String.join(" ", args);
-		new BukkitRunnable() {
-
-			@Override
-			public void run() {
-				player.performCommand(finalCommand);
-				if (!update) {
-					player.closeInventory();
-				} else {
-					SCFrame currentFrame = frames.get(player.getUniqueId());
-					if (currentFrame instanceof ConfirmationFrame) {
-						currentFrame = currentFrame.getParent();
-					}
-					InventoryDrawer.open(currentFrame);
+		plugin.getScheduler().runAtEntity(player, task -> {
+			player.performCommand(finalCommand);
+			if (!update) {
+				player.closeInventory();
+			} else {
+				SCFrame currentFrame = frames.get(player.getUniqueId());
+				if (currentFrame instanceof ConfirmationFrame) {
+					currentFrame = currentFrame.getParent();
 				}
+				InventoryDrawer.open(currentFrame);
 			}
-		}.runTask(plugin);
+		});
 	}
 }

src/main/java/net/sacredlabyrinth/phaed/simpleclans/ui/InventoryDrawer.java

@@ -35,19 +35,19 @@ public class InventoryDrawer {
             return;
         }
 
-	FrameOpenEvent event = new FrameOpenEvent(frame.getViewer(), frame);
+        FrameOpenEvent event = new FrameOpenEvent(frame.getViewer(), frame);
         Bukkit.getPluginManager().callEvent(event);
         if (event.isCancelled()) {
             return;
-	}
-	OPENING.put(uuid, frame);
-        Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
-	    Inventory inventory = prepareInventory(frame);
+        }
+        OPENING.put(uuid, frame);
+        plugin.getScheduler().runAsync(task -> {
+            Inventory inventory = prepareInventory(frame);
 
             if (!frame.equals(OPENING.get(uuid))) {
                 return;
             }
-            Bukkit.getScheduler().runTask(plugin, () -> {
+            plugin.getScheduler().runAtEntity(frame.getViewer(), syncTask -> {
                 frame.getViewer().openInventory(inventory);
                 InventoryController.register(frame);
                 OPENING.remove(uuid);
@@ -70,7 +70,6 @@ public class InventoryDrawer {
     }
 
     /**
-     *
      * @deprecated use {@link InventoryDrawer#open(SCFrame)}
      */
     @Deprecated
@@ -122,7 +121,7 @@ public class InventoryDrawer {
     }
 
     private static void runHelpCommand(@NotNull Player player) {
-        Bukkit.getScheduler().runTask(plugin, () -> plugin.getServer().getConsoleSender().sendMessage(lang("gui.not.supported")));
+        plugin.getServer().getConsoleSender().sendMessage(lang("gui.not.supported"));
         SettingsManager settingsManager = plugin.getSettingsManager();
         settingsManager.set(ENABLE_GUI, false);
         String commandClan = settingsManager.getString(COMMANDS_CLAN);
@@ -148,10 +147,10 @@ public class InventoryDrawer {
     }
 
     private static boolean hasPermission(@NotNull Player viewer, @NotNull Object permission) {
-    	if (permission instanceof String) {
-    		return plugin.getPermissionsManager().has(viewer, (String) permission);
-		}
-    	return plugin.getPermissionsManager().has(viewer, (RankPermission) permission, false);
-	}
+        if (permission instanceof String) {
+            return plugin.getPermissionsManager().has(viewer, (String) permission);
+        }
+        return plugin.getPermissionsManager().has(viewer, (RankPermission) permission, false);
+    }
 
 }

src/main/java/net/sacredlabyrinth/phaed/simpleclans/utils/UpdateChecker.java

@@ -37,35 +37,31 @@ public class UpdateChecker {
 	 * 
 	 */
 	public void check() {
-		new BukkitRunnable() {
+		plugin.getScheduler().runAsync(task -> {
+			try {
+				URL url = new URL(LATEST_VERSION_URL);
+				HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+				connection.addRequestProperty("User-Agent", userAgent);
+				InputStreamReader reader = new InputStreamReader(connection.getInputStream());
 
-			@Override
-			public void run() {
-				try {
-					URL url = new URL(LATEST_VERSION_URL);
-					HttpURLConnection connection = (HttpURLConnection) url.openConnection();
-					connection.addRequestProperty("User-Agent", userAgent);
-					InputStreamReader reader = new InputStreamReader(connection.getInputStream());
-					
-					JsonElement parse = JsonParser.parseReader(reader);
-					if (parse.isJsonObject()) {
-						String latestVersion = parse.getAsJsonObject().get("name").getAsString();
+				JsonElement parse = JsonParser.parseReader(reader);
+				if (parse.isJsonObject()) {
+					String latestVersion = parse.getAsJsonObject().get("name").getAsString();
 
-						if (compareVersions(version, latestVersion) < 0) {
-							plugin.getLogger().info(String.format("You're running an outdated version (%s).", version));
-							plugin.getLogger().info(String.format("The latest version is %s. Download it at:", latestVersion));
-							plugin.getLogger().info("https://www.spigotmc.org/resources/simpleclans.71242/");
-						}
-						
+					if (compareVersions(version, latestVersion) < 0) {
+						plugin.getLogger().info(String.format("You're running an outdated version (%s).", version));
+						plugin.getLogger().info(String.format("The latest version is %s. Download it at:", latestVersion));
+						plugin.getLogger().info("https://www.spigotmc.org/resources/simpleclans.71242/");
 					}
-					
-					reader.close();
-				} catch (MalformedURLException ignored) {
-				} catch (IOException | JsonParseException ex) {
-					plugin.getLogger().log(Level.WARNING, "Error checking the plugin version...");
+
 				}
+
+				reader.close();
+			} catch (MalformedURLException ignored) {
+			} catch (IOException | JsonParseException ex) {
+				plugin.getLogger().log(Level.WARNING, "Error checking the plugin version...");
 			}
-		}.runTaskAsynchronously(plugin);
+		});
 	}
 
 	public static int compareVersions(@NotNull String a, @NotNull String b) {

src/main/resources/plugin.yml

@@ -11,6 +11,7 @@ loadbefore:
   - GriefPrevention
   - PlotSquared
 api-version: '1.13'
+folia-supported: true
 authors:
   - Phaed
   - RoinujNosde