Fixed StaticOptionalConfig

build.gradle

@@ -45,6 +45,9 @@ allprojects {
 
         // NoCheatPlus
         maven { url 'https://repo.md-5.net/content/repositories/snapshots/' }
+
+        // CombatLogX
+        maven { url 'https://nexus.sirblobman.xyz/repository/public/' }
     }
 
     dependencies {

eco-core/core-nms/v1_15_R1/src/main/java/com/willfp/eco/proxy/v1_15_R1/VillagerTrade.java

@@ -19,7 +19,7 @@ public final class VillagerTrade implements VillagerTradeProxy {
             fResult.setAccessible(true);
 
             ItemStack result = merchantRecipe.getResult();
-            Display.display(result);
+            Display.displayAndFinalize(result);
             fResult.set(merchantRecipe, result);
 
             // Get NMS MerchantRecipe from CraftMerchantRecipe
@@ -31,7 +31,7 @@ public final class VillagerTrade implements VillagerTradeProxy {
             fSelling.setAccessible(true);
 
             ItemStack selling = CraftItemStack.asBukkitCopy(handle.sellingItem);
-            Display.display(selling);
+            Display.displayAndFinalize(selling);
             fSelling.set(handle, CraftItemStack.asNMSCopy(selling));
         } catch (IllegalAccessException | NoSuchFieldException e) {
             e.printStackTrace();

eco-core/core-nms/v1_16_R1/src/main/java/com/willfp/eco/proxy/v1_16_R1/VillagerTrade.java

@@ -18,7 +18,7 @@ public final class VillagerTrade implements VillagerTradeProxy {
             Field fResult = MerchantRecipe.class.getDeclaredField("result");
             fResult.setAccessible(true);
             ItemStack result = merchantRecipe.getResult();
-            Display.display(result);
+            Display.displayAndFinalize(result);
             fResult.set(merchantRecipe, result);
 
             // Get NMS MerchantRecipe from CraftMerchantRecipe
@@ -30,7 +30,7 @@ public final class VillagerTrade implements VillagerTradeProxy {
             fSelling.setAccessible(true);
 
             ItemStack selling = CraftItemStack.asBukkitCopy(handle.sellingItem);
-            Display.display(selling);
+            Display.displayAndFinalize(selling);
 
             fSelling.set(handle, CraftItemStack.asNMSCopy(selling));
         } catch (IllegalAccessException | NoSuchFieldException e) {

eco-core/core-nms/v1_16_R2/src/main/java/com/willfp/eco/proxy/v1_16_R2/VillagerTrade.java

@@ -18,7 +18,7 @@ public final class VillagerTrade implements VillagerTradeProxy {
             Field fResult = MerchantRecipe.class.getDeclaredField("result");
             fResult.setAccessible(true);
             ItemStack result = merchantRecipe.getResult();
-            Display.display(result);
+            Display.displayAndFinalize(result);
             fResult.set(merchantRecipe, result);
 
             // Get NMS MerchantRecipe from CraftMerchantRecipe
@@ -30,7 +30,7 @@ public final class VillagerTrade implements VillagerTradeProxy {
             fSelling.setAccessible(true);
 
             ItemStack selling = CraftItemStack.asBukkitCopy(handle.sellingItem);
-            Display.display(selling);
+            Display.displayAndFinalize(selling);
 
             fSelling.set(handle, CraftItemStack.asNMSCopy(selling));
         } catch (IllegalAccessException | NoSuchFieldException e) {

eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/eco/proxy/v1_16_R3/VillagerTrade.java

@@ -18,7 +18,7 @@ public final class VillagerTrade implements VillagerTradeProxy {
             Field fResult = MerchantRecipe.class.getDeclaredField("result");
             fResult.setAccessible(true);
             ItemStack result = merchantRecipe.getResult();
-            Display.display(result);
+            Display.displayAndFinalize(result);
             fResult.set(merchantRecipe, result);
 
             // Get NMS MerchantRecipe from CraftMerchantRecipe
@@ -30,7 +30,7 @@ public final class VillagerTrade implements VillagerTradeProxy {
             fSelling.setAccessible(true);
 
             ItemStack selling = CraftItemStack.asBukkitCopy(handle.sellingItem);
-            Display.display(selling);
+            Display.displayAndFinalize(selling);
 
             fSelling.set(handle, CraftItemStack.asNMSCopy(selling));
         } catch (IllegalAccessException | NoSuchFieldException e) {

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/EcoPlugin.java

@@ -16,11 +16,13 @@ import com.willfp.eco.spigot.eventlisteners.NaturalExpGainListeners;
 import com.willfp.eco.spigot.integrations.anticheat.AnticheatAAC;
 import com.willfp.eco.spigot.integrations.anticheat.AnticheatMatrix;
 import com.willfp.eco.spigot.integrations.anticheat.AnticheatNCP;
+import com.willfp.eco.spigot.integrations.antigrief.AntigriefCombatLogX;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefFactionsUUID;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefGriefPrevention;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefKingdoms;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefLands;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefTowny;
+import com.willfp.eco.spigot.integrations.antigrief.AntigriefUltimateLands;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefWorldGuard;
 import com.willfp.eco.spigot.integrations.mcmmo.McmmoIntegrationImpl;
 import com.willfp.eco.spigot.recipes.RecipeListener;
@@ -107,6 +109,8 @@ public class EcoPlugin extends AbstractEcoPlugin {
                 new IntegrationLoader("Towny", () -> AntigriefManager.register(new AntigriefTowny())),
                 new IntegrationLoader("Lands", () -> AntigriefManager.register(new AntigriefLands(this))),
                 new IntegrationLoader("Kingdoms", () -> AntigriefManager.register(new AntigriefKingdoms())),
+                new IntegrationLoader("ULands", () -> AntigriefManager.register(new AntigriefUltimateLands())),
+                new IntegrationLoader("CombatLogX", () -> AntigriefManager.register(new AntigriefCombatLogX())),
 
                 // Anticheat
                 new IntegrationLoader("AAC5", () -> AnticheatManager.register(this, new AnticheatAAC())),

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/anticheat/AnticheatNCP.java

@@ -23,7 +23,7 @@ public class AnticheatNCP implements AnticheatWrapper {
 
     @Override
     public void exempt(@NotNull final Player player) {
-        if (!NCPExemptionManager.isExempted(player, CheckType.ALL)) {
+        if (NCPExemptionManager.isExempted(player, CheckType.ALL)) {
             return;
         }
 

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefCombatLogX.java

@@ -0,0 +1,76 @@
+package com.willfp.eco.spigot.integrations.antigrief;
+
+import com.SirBlobman.combatlogx.api.ICombatLogX;
+import com.SirBlobman.combatlogx.api.expansion.Expansion;
+import com.SirBlobman.combatlogx.expansion.newbie.helper.NewbieHelper;
+import com.SirBlobman.combatlogx.expansion.newbie.helper.listener.ListenerPVP;
+import com.willfp.eco.spigot.EcoPlugin;
+import com.willfp.eco.util.integrations.antigrief.AntigriefWrapper;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.block.Block;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+public class AntigriefCombatLogX implements AntigriefWrapper {
+    /**
+     * Instance of CombatLogX.
+     */
+    private final ICombatLogX instance = (ICombatLogX) Bukkit.getPluginManager().getPlugin("CombatLogX");
+
+    /**
+     * PVPManager for CombatLogX NewbieHelper.
+     */
+    private ListenerPVP pvp = null;
+
+    /**
+     * Create new CombatLogX antigrief.
+     */
+    public AntigriefCombatLogX() {
+        assert instance != null;
+        EcoPlugin.getInstance().getScheduler().runLater(() -> {
+            Expansion expansionUncast = instance.getExpansionManager().getExpansionByName("NewbieHelper").orElse(null);
+            if (expansionUncast instanceof NewbieHelper) {
+                pvp = ((NewbieHelper) expansionUncast).getPVPListener();
+            }
+        }, 3);
+    }
+
+    @Override
+    public boolean canBreakBlock(@NotNull final Player player,
+                                 @NotNull final Block block) {
+        return true;
+    }
+
+    @Override
+    public boolean canCreateExplosion(@NotNull final Player player,
+                                      @NotNull final Location location) {
+        return true;
+    }
+
+    @Override
+    public boolean canPlaceBlock(@NotNull final Player player,
+                                 @NotNull final Block block) {
+        return true;
+    }
+
+    @Override
+    public boolean canInjure(@NotNull final Player player,
+                             @NotNull final LivingEntity victim) {
+        if (!(victim instanceof Player)) {
+            return true;
+        }
+
+        if (pvp == null) {
+            return true;
+        }
+
+        return (pvp.isPVPEnabled(player) && pvp.isPVPEnabled((Player) victim));
+    }
+
+    @Override
+    public String getPluginName() {
+        return "CombatLogX";
+    }
+}

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefTowny.java

@@ -1,7 +1,10 @@
 package com.willfp.eco.spigot.integrations.antigrief;
 
+import com.palmergames.bukkit.towny.TownyAPI;
+import com.palmergames.bukkit.towny.TownyUniverse;
 import com.palmergames.bukkit.towny.object.Town;
 import com.palmergames.bukkit.towny.object.TownyPermission;
+import com.palmergames.bukkit.towny.object.TownyWorld;
 import com.palmergames.bukkit.towny.object.WorldCoord;
 import com.palmergames.bukkit.towny.utils.PlayerCacheUtil;
 import com.willfp.eco.util.integrations.antigrief.AntigriefWrapper;
@@ -16,24 +19,57 @@ public class AntigriefTowny implements AntigriefWrapper {
     @Override
     public boolean canBreakBlock(@NotNull final Player player,
                                  @NotNull final Block block) {
-        return PlayerCacheUtil.getCachePermission(player, block.getLocation(), block.getType(), TownyPermission.ActionType.DESTROY);
+        TownyWorld world = TownyUniverse.getInstance().getWorldMap().get(block.getLocation().getWorld().getName());
+        if (world == null) {
+            return true;
+        }
+        if (TownyAPI.getInstance().isWilderness(block)) {
+            return true;
+        }
+        return PlayerCacheUtil.getCachePermission(player, block.getLocation(), block.getType(), TownyPermission.ActionType.DESTROY)
+                || PlayerCacheUtil.getCachePermission(player, block.getLocation(), block.getType(), TownyPermission.ActionType.BUILD);
     }
 
     @Override
     public boolean canCreateExplosion(@NotNull final Player player,
                                       @NotNull final Location location) {
+        TownyWorld world = TownyUniverse.getInstance().getWorldMap().get(location.getWorld().getName());
+        if (world == null) {
+            return true;
+        }
+        if (TownyAPI.getInstance().isWilderness(location)) {
+            return true;
+        }
         return PlayerCacheUtil.getCachePermission(player, location, Material.TNT, TownyPermission.ActionType.ITEM_USE);
     }
 
     @Override
     public boolean canPlaceBlock(@NotNull final Player player,
                                  @NotNull final Block block) {
+        TownyWorld world = TownyUniverse.getInstance().getWorldMap().get(block.getLocation().getWorld().getName());
+        if (world == null) {
+            return true;
+        }
+        if (TownyAPI.getInstance().isWilderness(block)) {
+            return true;
+        }
         return PlayerCacheUtil.getCachePermission(player, block.getLocation(), block.getType(), TownyPermission.ActionType.BUILD);
     }
 
     @Override
     public boolean canInjure(@NotNull final Player player,
                              @NotNull final LivingEntity victim) {
+        TownyWorld world = TownyUniverse.getInstance().getWorldMap().get(victim.getLocation().getWorld().getName());
+        if (world == null) {
+            return true;
+        }
+        if (TownyAPI.getInstance().isWilderness(victim.getLocation())) {
+            if (victim instanceof Player) {
+                return world.isPVP();
+            } else {
+                return true;
+            }
+        }
         if (victim instanceof Player) {
             try {
                 Town town = WorldCoord.parseWorldCoord(victim.getLocation()).getTownBlock().getTown();

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefUltimateLands.java

@@ -0,0 +1,40 @@
+package com.willfp.eco.spigot.integrations.antigrief;
+
+import com.willfp.eco.util.integrations.antigrief.AntigriefWrapper;
+import me.ulrich.lands.api.LandsAPI;
+import org.bukkit.Location;
+import org.bukkit.block.Block;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+public class AntigriefUltimateLands implements AntigriefWrapper {
+    @Override
+    public boolean canBreakBlock(@NotNull final Player player,
+                                 @NotNull final Block block) {
+        return LandsAPI.getInstance().isOwnerOfChunk(player.getName(), block.getChunk()) || LandsAPI.getInstance().isMemberOfChunk(block.getChunk(), player);
+    }
+
+    @Override
+    public boolean canCreateExplosion(@NotNull final Player player,
+                                      @NotNull final Location location) {
+        return LandsAPI.getInstance().isOwnerOfChunk(player.getName(), location.getChunk()) || LandsAPI.getInstance().isMemberOfChunk(location.getChunk(), player);
+    }
+
+    @Override
+    public boolean canPlaceBlock(@NotNull final Player player,
+                                 @NotNull final Block block) {
+        return LandsAPI.getInstance().isOwnerOfChunk(player.getName(), block.getChunk()) || LandsAPI.getInstance().isMemberOfChunk(block.getChunk(), player);
+    }
+
+    @Override
+    public boolean canInjure(@NotNull final Player player,
+                             @NotNull final LivingEntity victim) {
+        return LandsAPI.getInstance().isOwnerOfChunk(player.getName(), victim.getLocation().getChunk()) || LandsAPI.getInstance().isMemberOfChunk(victim.getLocation().getChunk(), player);
+    }
+
+    @Override
+    public String getPluginName() {
+        return "ULands";
+    }
+}

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefWorldGuard.java

@@ -5,7 +5,6 @@ import com.sk89q.worldguard.LocalPlayer;
 import com.sk89q.worldguard.WorldGuard;
 import com.sk89q.worldguard.bukkit.WorldGuardPlugin;
 import com.sk89q.worldguard.protection.flags.Flags;
-import com.sk89q.worldguard.protection.flags.StateFlag;
 import com.sk89q.worldguard.protection.regions.RegionContainer;
 import com.sk89q.worldguard.protection.regions.RegionQuery;
 import com.willfp.eco.util.integrations.antigrief.AntigriefWrapper;
@@ -25,7 +24,7 @@ public class AntigriefWorldGuard implements AntigriefWrapper {
         RegionContainer container = WorldGuard.getInstance().getPlatform().getRegionContainer();
         RegionQuery query = container.createQuery();
 
-        if (query.queryState(BukkitAdapter.adapt(block.getLocation()), localPlayer, Flags.BUILD) == StateFlag.State.DENY) {
+        if (!query.testBuild(BukkitAdapter.adapt(block.getLocation()), localPlayer, Flags.BLOCK_BREAK)) {
             return WorldGuard.getInstance().getPlatform().getSessionManager().hasBypass(localPlayer, BukkitAdapter.adapt(block.getWorld()));
         }
         return true;
@@ -40,7 +39,7 @@ public class AntigriefWorldGuard implements AntigriefWrapper {
         World world = location.getWorld();
         Validate.notNull(world, "World cannot be null!");
 
-        if (query.queryState(BukkitAdapter.adapt(location), localPlayer, Flags.OTHER_EXPLOSION) == StateFlag.State.DENY) {
+        if (!query.testBuild(BukkitAdapter.adapt(location), localPlayer, Flags.TNT)) {
             return WorldGuard.getInstance().getPlatform().getSessionManager().hasBypass(localPlayer, BukkitAdapter.adapt(world));
         }
         return true;
@@ -53,7 +52,7 @@ public class AntigriefWorldGuard implements AntigriefWrapper {
         RegionContainer container = WorldGuard.getInstance().getPlatform().getRegionContainer();
         RegionQuery query = container.createQuery();
 
-        if (query.queryState(BukkitAdapter.adapt(block.getLocation()), localPlayer, Flags.BLOCK_PLACE) == StateFlag.State.DENY) {
+        if (!query.testBuild(BukkitAdapter.adapt(block.getLocation()), localPlayer, Flags.BLOCK_PLACE)) {
             return WorldGuard.getInstance().getPlatform().getSessionManager().hasBypass(localPlayer, BukkitAdapter.adapt(block.getWorld()));
         }
         return true;
@@ -67,11 +66,11 @@ public class AntigriefWorldGuard implements AntigriefWrapper {
         RegionQuery query = container.createQuery();
 
         if (victim instanceof Player) {
-            if (query.queryState(BukkitAdapter.adapt(victim.getLocation()), localPlayer, Flags.PVP) == StateFlag.State.DENY) {
+            if (!query.testBuild(BukkitAdapter.adapt(victim.getLocation()), localPlayer, Flags.PVP)) {
                 return WorldGuard.getInstance().getPlatform().getSessionManager().hasBypass(localPlayer, BukkitAdapter.adapt(player.getWorld()));
             }
         } else {
-            if (query.queryState(BukkitAdapter.adapt(victim.getLocation()), localPlayer, Flags.DAMAGE_ANIMALS) == StateFlag.State.DENY) {
+            if (!query.testBuild(BukkitAdapter.adapt(victim.getLocation()), localPlayer, Flags.DAMAGE_ANIMALS)) {
                 return WorldGuard.getInstance().getPlatform().getSessionManager().hasBypass(localPlayer, BukkitAdapter.adapt(player.getWorld()));
             }
         }

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/mcmmo/McmmoIntegrationImpl.java

@@ -3,14 +3,33 @@ package com.willfp.eco.spigot.integrations.mcmmo;
 import com.gmail.nossr50.datatypes.meta.BonusDropMeta;
 import com.gmail.nossr50.events.fake.FakeEvent;
 import com.gmail.nossr50.mcMMO;
+import com.willfp.eco.util.ClassUtils;
 import com.willfp.eco.util.integrations.mcmmo.McmmoWrapper;
 import org.bukkit.block.Block;
 import org.bukkit.event.Event;
 import org.jetbrains.annotations.NotNull;
 
 public class McmmoIntegrationImpl implements McmmoWrapper {
+    /**
+     * Disabled if mcmmo is outdated or missing classes.
+     */
+    boolean disabled = false;
+
+    /**
+     * Initialize mcMMO integration.
+     */
+    public McmmoIntegrationImpl() {
+        if (!ClassUtils.exists("com.gmail.nossr50.events.fake.FakeEvent")) {
+            disabled = true;
+        }
+    }
+
     @Override
     public int getBonusDropCount(@NotNull final Block block) {
+        if (disabled) {
+            return 0;
+        }
+
         if (block.getMetadata(mcMMO.BONUS_DROPS_METAKEY).size() > 0) {
             BonusDropMeta bonusDropMeta = (BonusDropMeta) block.getMetadata(mcMMO.BONUS_DROPS_METAKEY).get(0);
             return bonusDropMeta.asInt();
@@ -21,6 +40,10 @@ public class McmmoIntegrationImpl implements McmmoWrapper {
 
     @Override
     public boolean isFake(@NotNull final Event event) {
+        if (disabled) {
+            return false;
+        }
+
         return event instanceof FakeEvent;
     }
 }

eco-core/core-plugin/src/main/resources/plugin.yml

@@ -9,7 +9,7 @@ loadbefore:
   - Talismans
   - StatTrackers
   - EcoArmor
-  - Illusioner
+  - EcoBosses
 depend:
   - ProtocolLib
 softdepend:
@@ -25,3 +25,5 @@ softdepend:
   - Spartan
   - PlaceholderAPI
   - mcMMO
+  - ULands
+  - CombatLogX

eco-util/src/main/java/com/willfp/eco/internal/config/AbstractConfig.java

@@ -1,15 +1,11 @@
 package com.willfp.eco.internal.config;
 
-import com.willfp.eco.util.StringUtils;
-import com.willfp.eco.util.internal.PluginDependent;
 import com.willfp.eco.util.plugin.AbstractEcoPlugin;
 import lombok.AccessLevel;
 import lombok.Getter;
-import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.InvalidConfigurationException;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -19,19 +15,8 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
 import java.nio.charset.StandardCharsets;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-
-@SuppressWarnings("unchecked")
-public abstract class AbstractConfig extends PluginDependent {
-    /**
-     * The linked {@link YamlConfiguration} where values are physically stored.
-     */
-    @Getter(AccessLevel.PUBLIC)
-    protected final YamlConfiguration config;
 
+public abstract class AbstractConfig extends AbstractUndefinedConfig<YamlConfiguration> {
     /**
      * The physical config file, as stored on disk.
      */
@@ -39,9 +24,15 @@ public abstract class AbstractConfig extends PluginDependent {
     private final File configFile;
 
     /**
-     * The full name of the config file (eg config.yml).
+     * Plugin handle.
      */
     @Getter(AccessLevel.PROTECTED)
+    private final AbstractEcoPlugin plugin;
+
+    /**
+     * The full name of the config file (eg config.yml).
+     */
+    @Getter
     private final String name;
 
     /**
@@ -56,11 +47,6 @@ public abstract class AbstractConfig extends PluginDependent {
     @Getter(AccessLevel.PROTECTED)
     private final Class<?> source;
 
-    /**
-     * Cached values for faster reading.
-     */
-    private final Map<String, Object> cache = new HashMap<>();
-
     /**
      * Abstract config.
      *
@@ -73,10 +59,11 @@ public abstract class AbstractConfig extends PluginDependent {
                              @NotNull final AbstractEcoPlugin plugin,
                              @NotNull final String subDirectoryPath,
                              @NotNull final Class<?> source) {
-        super(plugin);
+        super(configName);
+        this.plugin = plugin;
+        this.name = configName + ".yml";
         this.source = source;
         this.subDirectoryPath = subDirectoryPath;
-        this.name = configName + ".yml";
 
         File directory = new File(this.getPlugin().getDataFolder(), subDirectoryPath);
         if (!directory.exists()) {
@@ -88,7 +75,7 @@ public abstract class AbstractConfig extends PluginDependent {
         }
 
         this.configFile = new File(directory, this.name);
-        this.config = YamlConfiguration.loadConfiguration(configFile);
+        init(YamlConfiguration.loadConfiguration(configFile));
     }
 
     private void createFile() {
@@ -144,7 +131,7 @@ public abstract class AbstractConfig extends PluginDependent {
         InputStream newIn = source.getResourceAsStream(getResourcePath());
 
         if (newIn == null) {
-            throw new NullPointerException(this.getName() + " is null?");
+            throw new NullPointerException(name + " is null?");
         }
 
         BufferedReader reader = new BufferedReader(new InputStreamReader(newIn, StandardCharsets.UTF_8));
@@ -158,315 +145,4 @@ public abstract class AbstractConfig extends PluginDependent {
 
         return newConfig;
     }
-
-    /**
-     * Clears cache.
-     */
-    public final void clearCache() {
-        cache.clear();
-    }
-
-    /**
-     * Get if the config contains a key.
-     *
-     * @param path The key to check.
-     * @return If contained.
-     */
-    public boolean has(@NotNull final String path) {
-        return config.contains(path);
-    }
-
-    /**
-     * Get configuration section from config.
-     *
-     * @param path The key to check.
-     * @return The configuration section. Throws NPE if not found.
-     */
-    @NotNull
-    public ConfigurationSection getSection(@NotNull final String path) {
-        ConfigurationSection section = getSectionOrNull(path);
-        if (section == null) {
-            throw new NullPointerException("Section cannot be null!");
-        } else {
-            return section;
-        }
-    }
-
-    /**
-     * Get configuration section from config.
-     *
-     * @param path The key to check.
-     * @return The configuration section, or null if not found.
-     */
-    @Nullable
-    public ConfigurationSection getSectionOrNull(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (ConfigurationSection) cache.get(path);
-        } else {
-            cache.put(path, config.getConfigurationSection(path));
-            return getSectionOrNull(path);
-        }
-    }
-
-    /**
-     * Get an integer from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or 0 if not found.
-     */
-    public int getInt(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (int) cache.get(path);
-        } else {
-            cache.put(path, config.getInt(path, 0));
-            return getInt(path);
-        }
-    }
-
-    /**
-     * Get an integer from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or null if not found.
-     */
-    @Nullable
-    public Integer getIntOrNull(@NotNull final String path) {
-        if (has(path)) {
-            return getInt(path);
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Get an integer from config with a specified default (not found) value.
-     *
-     * @param path The key to fetch the value from.
-     * @param def  The value to default to if not found.
-     * @return The found value, or the default.
-     */
-    public int getInt(@NotNull final String path,
-                      final int def) {
-        if (cache.containsKey(path)) {
-            return (int) cache.get(path);
-        } else {
-            cache.put(path, config.getInt(path, def));
-            return getInt(path);
-        }
-    }
-
-    /**
-     * Get a list of integers from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or a blank {@link java.util.ArrayList} if not found.
-     */
-    @NotNull
-    public List<Integer> getInts(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (List<Integer>) cache.get(path);
-        } else {
-            cache.put(path, config.getIntegerList(path));
-            return getInts(path);
-        }
-    }
-
-    /**
-     * Get a list of integers from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or null if not found.
-     */
-    @Nullable
-    public List<Integer> getIntsOrNull(@NotNull final String path) {
-        if (has(path)) {
-            return getInts(path);
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Get a boolean from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or false if not found.
-     */
-    public boolean getBool(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (boolean) cache.get(path);
-        } else {
-            cache.put(path, config.getBoolean(path));
-            return getBool(path);
-        }
-    }
-
-    /**
-     * Get a boolean from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or null if not found.
-     */
-    @Nullable
-    public Boolean getBoolOrNull(@NotNull final String path) {
-        if (has(path)) {
-            return getBool(path);
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Get a list of booleans from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or a blank {@link java.util.ArrayList} if not found.
-     */
-    @NotNull
-    public List<Boolean> getBools(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (List<Boolean>) cache.get(path);
-        } else {
-            cache.put(path, config.getBooleanList(path));
-            return getBools(path);
-        }
-    }
-
-    /**
-     * Get a list of booleans from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or null if not found.
-     */
-    @Nullable
-    public List<Boolean> getBoolsOrNull(@NotNull final String path) {
-        if (has(path)) {
-            return getBools(path);
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Get a string from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or an empty string if not found.
-     */
-    @NotNull
-    public String getString(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (String) cache.get(path);
-        } else {
-            cache.put(path, StringUtils.translate(Objects.requireNonNull(config.getString(path, ""))));
-            return getString(path);
-        }
-    }
-
-    /**
-     * Get a string from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or null if not found.
-     */
-    @Nullable
-    public String getStringOrNull(@NotNull final String path) {
-        if (has(path)) {
-            return getString(path);
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Get a list of strings from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or a blank {@link java.util.ArrayList} if not found.
-     */
-    @NotNull
-    public List<String> getStrings(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (List<String>) cache.get(path);
-        } else {
-            cache.put(path, config.getStringList(path));
-            return getStrings(path);
-        }
-    }
-
-    /**
-     * Get a list of strings from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or null if not found.
-     */
-    @Nullable
-    public List<String> getStringsOrNull(@NotNull final String path) {
-        if (has(path)) {
-            return getStrings(path);
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Get a decimal from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or 0 if not found.
-     */
-    public double getDouble(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (double) cache.get(path);
-        } else {
-            cache.put(path, config.getDouble(path));
-            return getDouble(path);
-        }
-    }
-
-    /**
-     * Get a decimal from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or null if not found.
-     */
-    @Nullable
-    public Double getDoubleOrNull(@NotNull final String path) {
-        if (has(path)) {
-            return getDouble(path);
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Get a list of decimals from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or a blank {@link java.util.ArrayList} if not found.
-     */
-    @NotNull
-    public List<Double> getDoubles(@NotNull final String path) {
-        if (cache.containsKey(path)) {
-            return (List<Double>) cache.get(path);
-        } else {
-            cache.put(path, config.getDoubleList(path));
-            return getDoubles(path);
-        }
-    }
-
-    /**
-     * Get a list of decimals from config.
-     *
-     * @param path The key to fetch the value from.
-     * @return The found value, or null if not found.
-     */
-    @Nullable
-    public List<Double> getDoublesOrNull(@NotNull final String path) {
-        if (has(path)) {
-            return getDoubles(path);
-        } else {
-            return null;
-        }
-    }
 }

eco-util/src/main/java/com/willfp/eco/internal/config/AbstractUndefinedConfig.java

@@ -0,0 +1,323 @@
+package com.willfp.eco.internal.config;
+
+import com.willfp.eco.util.SerializationUtils;
+import com.willfp.eco.util.StringUtils;
+import com.willfp.eco.util.config.Config;
+import com.willfp.eco.util.serialization.EcoSerializable;
+import lombok.AccessLevel;
+import lombok.Getter;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.MemorySection;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+@SuppressWarnings({"unchecked", "unused", "DeprecatedIsStillUsed"})
+public abstract class AbstractUndefinedConfig<T extends ConfigurationSection> implements Config {
+    /**
+     * The linked {@link MemorySection} where values are physically stored.
+     */
+    @Getter(AccessLevel.PUBLIC)
+    protected T config = null;
+
+    /**
+     * Cached values for faster reading.
+     */
+    private final Map<String, Object> cache = new HashMap<>();
+
+    /**
+     * Abstract config.
+     *
+     * @param configName The name of the config
+     */
+    protected AbstractUndefinedConfig(@NotNull final String configName) {
+
+    }
+
+    protected Config init(@NotNull final T config) {
+        this.config = config;
+        return this;
+    }
+
+    @Override
+    public final void clearCache() {
+        cache.clear();
+    }
+
+    @Override
+    public boolean has(@NotNull final String path) {
+        return config.contains(path);
+    }
+
+    @NotNull
+    @Override
+    public List<String> getKeys(final boolean deep) {
+        return new ArrayList<>(config.getKeys(deep));
+    }
+
+    @Override
+    public void set(@NotNull final String path,
+                    @NotNull final EcoSerializable<?> object) {
+        Config serializedConfig = object.serialize();
+        for (String key : serializedConfig.getKeys(true)) {
+            Object raw = serializedConfig.getRaw(key);
+            config.set(path + "." + key, raw);
+            cache.put(path + "." + key, raw);
+        }
+    }
+
+    @Override
+    @Nullable
+    public Object getRaw(@NotNull final String path) {
+        return config.get(path);
+    }
+
+    @Override
+    @NotNull
+    public <T extends EcoSerializable<T>> T get(@NotNull final String path,
+                                                @NotNull final Class<T> clazz) {
+        T object = getOrNull(path, clazz);
+        if (object == null) {
+            throw new NullPointerException("Object cannot be null!");
+        } else {
+            return object;
+        }
+    }
+
+    @Override
+    @Nullable
+    public <T extends EcoSerializable<T>> T getOrNull(@NotNull final String path,
+                                                      @NotNull final Class<T> clazz) {
+        if (cache.containsKey(path)) {
+            return (T) cache.get(path);
+        } else {
+            Config section = getSubsectionOrNull(path);
+            if (section == null) {
+                return null;
+            }
+            cache.put(path, SerializationUtils.deserialize(section, clazz));
+            return getOrNull(path, clazz);
+        }
+    }
+
+    @Override
+    @NotNull
+    @Deprecated
+    public ConfigurationSection getSection(@NotNull final String path) {
+        ConfigurationSection section = getSectionOrNull(path);
+        if (section == null) {
+            throw new NullPointerException("Section cannot be null!");
+        } else {
+            return section;
+        }
+    }
+
+    @Override
+    @Nullable
+    @Deprecated
+    public ConfigurationSection getSectionOrNull(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (ConfigurationSection) cache.get(path);
+        } else {
+            cache.put(path, config.getConfigurationSection(path));
+            return getSectionOrNull(path);
+        }
+    }
+
+    @Override
+    @NotNull
+    public Config getSubsection(@NotNull final String path) {
+        return new ConfigSection(this.getSection(path));
+    }
+
+    @Override
+    @Nullable
+    public Config getSubsectionOrNull(@NotNull final String path) {
+        ConfigurationSection section = this.getSectionOrNull(path);
+        if (section == null) {
+            return null;
+        }
+        return new ConfigSection(section);
+    }
+
+    @Override
+    public int getInt(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (int) cache.get(path);
+        } else {
+            cache.put(path, config.getInt(path, 0));
+            return getInt(path);
+        }
+    }
+
+    @Override
+    @Nullable
+    public Integer getIntOrNull(@NotNull final String path) {
+        if (has(path)) {
+            return getInt(path);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public int getInt(@NotNull final String path,
+                      final int def) {
+        if (cache.containsKey(path)) {
+            return (int) cache.get(path);
+        } else {
+            cache.put(path, config.getInt(path, def));
+            return getInt(path);
+        }
+    }
+
+    @Override
+    @NotNull
+    public List<Integer> getInts(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (List<Integer>) cache.get(path);
+        } else {
+            cache.put(path, has(path) ? new ArrayList<>(config.getIntegerList(path)) : new ArrayList<>());
+            return getInts(path);
+        }
+    }
+
+    @Override
+    @Nullable
+    public List<Integer> getIntsOrNull(@NotNull final String path) {
+        if (has(path)) {
+            return getInts(path);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public boolean getBool(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (boolean) cache.get(path);
+        } else {
+            cache.put(path, config.getBoolean(path));
+            return getBool(path);
+        }
+    }
+
+    @Override
+    @Nullable
+    public Boolean getBoolOrNull(@NotNull final String path) {
+        if (has(path)) {
+            return getBool(path);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    @NotNull
+    public List<Boolean> getBools(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (List<Boolean>) cache.get(path);
+        } else {
+            cache.put(path, has(path) ? new ArrayList<>(config.getBooleanList(path)) : new ArrayList<>());
+            return getBools(path);
+        }
+    }
+
+    @Override
+    @Nullable
+    public List<Boolean> getBoolsOrNull(@NotNull final String path) {
+        if (has(path)) {
+            return getBools(path);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    @NotNull
+    public String getString(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (String) cache.get(path);
+        } else {
+            cache.put(path, StringUtils.translate(Objects.requireNonNull(config.getString(path, ""))));
+            return getString(path);
+        }
+    }
+
+    @Override
+    @Nullable
+    public String getStringOrNull(@NotNull final String path) {
+        if (has(path)) {
+            return getString(path);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    @NotNull
+    public List<String> getStrings(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (List<String>) cache.get(path);
+        } else {
+            cache.put(path, has(path) ? new ArrayList<>(config.getStringList(path)) : new ArrayList<>());
+            return getStrings(path);
+        }
+    }
+
+    @Override
+    @Nullable
+    public List<String> getStringsOrNull(@NotNull final String path) {
+        if (has(path)) {
+            return getStrings(path);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public double getDouble(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (double) cache.get(path);
+        } else {
+            cache.put(path, config.getDouble(path));
+            return getDouble(path);
+        }
+    }
+
+    @Override
+    @Nullable
+    public Double getDoubleOrNull(@NotNull final String path) {
+        if (has(path)) {
+            return getDouble(path);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    @NotNull
+    public List<Double> getDoubles(@NotNull final String path) {
+        if (cache.containsKey(path)) {
+            return (List<Double>) cache.get(path);
+        } else {
+            cache.put(path, has(path) ? new ArrayList<>(config.getDoubleList(path)) : new ArrayList<>());
+            return getDoubles(path);
+        }
+    }
+
+    @Override
+    @Nullable
+    public List<Double> getDoublesOrNull(@NotNull final String path) {
+        if (has(path)) {
+            return getDoubles(path);
+        } else {
+            return null;
+        }
+    }
+}

eco-util/src/main/java/com/willfp/eco/internal/config/ConfigSection.java

@@ -0,0 +1,16 @@
+package com.willfp.eco.internal.config;
+
+import org.bukkit.configuration.ConfigurationSection;
+import org.jetbrains.annotations.NotNull;
+
+public class ConfigSection extends AbstractUndefinedConfig<ConfigurationSection> {
+    /**
+     * Config section.
+     *
+     * @param section    The section.
+     */
+    protected ConfigSection(@NotNull final ConfigurationSection section) {
+        super("subsection");
+        this.init(section);
+    }
+}

eco-util/src/main/java/com/willfp/eco/util/SerializationUtils.java

@@ -0,0 +1,49 @@
+package com.willfp.eco.util;
+
+import com.willfp.eco.util.config.Config;
+import com.willfp.eco.util.serialization.Deserializer;
+import com.willfp.eco.util.serialization.EcoSerializable;
+import com.willfp.eco.util.serialization.NoRegisteredDeserializerException;
+import lombok.SneakyThrows;
+import lombok.experimental.UtilityClass;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@UtilityClass
+public class SerializationUtils {
+    /**
+     * All registered deserializers.
+     */
+    private static final Map<String, Deserializer<?>> REGISTRY = new HashMap<>();
+
+    /**
+     * Register deserializer.
+     *
+     * @param clazz        The serializable class.
+     * @param deserializer The deserializer.
+     * @param <T>          The object type.
+     */
+    public <T extends EcoSerializable<T>> void registerDeserializer(@NotNull final Class<T> clazz,
+                                                                    @NotNull final Deserializer<T> deserializer) {
+        REGISTRY.put(clazz.getName(), deserializer);
+    }
+
+    /**
+     * Deserialize object.
+     *
+     * @param config The config.
+     * @param clazz  The class.
+     * @param <T>    The object type.
+     */
+    @SneakyThrows
+    public <T extends EcoSerializable<T>> T deserialize(@NotNull final Config config,
+                                                        @NotNull final Class<T> clazz) {
+        if (!REGISTRY.containsKey(clazz.getName())) {
+            throw new NoRegisteredDeserializerException("No deserializer registered for " + clazz.getName());
+        }
+
+        return clazz.cast(REGISTRY.get(clazz.getName()).deserialize(config));
+    }
+}

eco-util/src/main/java/com/willfp/eco/util/StringUtils.java

@@ -30,6 +30,11 @@ public class StringUtils {
      */
     private static final Pattern HEX_PATTERN = Pattern.compile("&#" + "([A-Fa-f0-9]{6})" + "");
 
+    /**
+     * Regex for hex codes.
+     */
+    private static final Pattern ALT_HEX_PATTERN = Pattern.compile("\\{#" + "([A-Fa-f0-9]{6})" + "}");
+
     /**
      * Translate a string - converts Placeholders and Color codes.
      *
@@ -61,7 +66,22 @@ public class StringUtils {
     }
 
     private static String translateHexColorCodes(@NotNull final String message) {
-        Matcher matcher = HEX_PATTERN.matcher(message);
+        String processedMessage = message;
+        for (HexParseMode parseMode : HexParseMode.values()) {
+            processedMessage = translateHexColorCodes(processedMessage, parseMode);
+        }
+        return processedMessage;
+    }
+
+    private static String translateHexColorCodes(@NotNull final String message,
+                                                 @NotNull final HexParseMode mode) {
+        Matcher matcher;
+        if (mode == HexParseMode.CMI) {
+            matcher = ALT_HEX_PATTERN.matcher(message);
+        } else {
+            matcher = HEX_PATTERN.matcher(message);
+        }
+
         StringBuffer buffer = new StringBuffer(message.length() + 4 * 8);
         while (matcher.find()) {
             String group = matcher.group(1);
@@ -201,4 +221,9 @@ public class StringUtils {
         }
         return string;
     }
+
+    private enum HexParseMode {
+        CMI,
+        NORMAL
+    }
 }

eco-util/src/main/java/com/willfp/eco/util/config/Config.java

@@ -0,0 +1,262 @@
+package com.willfp.eco.util.config;
+
+import com.willfp.eco.util.serialization.EcoSerializable;
+import org.bukkit.configuration.ConfigurationSection;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.List;
+
+public interface Config {
+    /**
+     * Clears cache.
+     */
+    void clearCache();
+
+    /**
+     * Get if the config contains a key.
+     *
+     * @param path The key to check.
+     * @return If contained.
+     */
+    boolean has(@NotNull String path);
+
+    /**
+     * Get config keys.
+     *
+     * @param deep If keys from subsections should be fetched too.
+     * @return A list of keys.
+     */
+    @NotNull
+    List<String> getKeys(boolean deep);
+
+    /**
+     * Set an object in config.
+     *
+     * @param path   The path.
+     * @param object The object.
+     */
+    void set(@NotNull String path,
+             @NotNull EcoSerializable<?> object);
+
+    /**
+     * Get an object from config.
+     * Default implementations call {@link org.bukkit.configuration.file.YamlConfiguration#get(String)}.
+     *
+     * @param path The path.
+     * @return The object.
+     */
+    @Nullable
+    Object getRaw(@NotNull String path);
+
+    /**
+     * Get an object from config.
+     *
+     * @param path  The path.
+     * @param clazz The class of the object.
+     * @param <T>   The type of the object.
+     * @return The object.
+     */
+    @NotNull <T extends EcoSerializable<T>> T get(@NotNull String path,
+                                                  @NotNull Class<T> clazz);
+
+    /**
+     * Get an object from config.
+     *
+     * @param path  The path.
+     * @param clazz The class of the object.
+     * @param <T>   The type of the object.
+     * @return The object, or null if not found.
+     */
+    @Nullable <T extends EcoSerializable<T>> T getOrNull(@NotNull String path,
+                                                         @NotNull Class<T> clazz);
+
+    /**
+     * Get bukkit configuration section from config.
+     *
+     * @param path The key to check.
+     * @return The configuration section. Throws NPE if not found.
+     */
+    @NotNull
+    @Deprecated
+    ConfigurationSection getSection(@NotNull String path);
+
+    /**
+     * Get bukkit configuration section from config.
+     *
+     * @param path The key to check.
+     * @return The configuration section, or null if not found.
+     */
+    @Nullable
+    @Deprecated
+    ConfigurationSection getSectionOrNull(@NotNull String path);
+
+    /**
+     * Get subsection from config.
+     *
+     * @param path The key to check.
+     * @return The subsection. Throws NPE if not found.
+     */
+    @NotNull
+    Config getSubsection(@NotNull String path);
+
+    /**
+     * Get subsection from config.
+     *
+     * @param path The key to check.
+     * @return The subsection, or null if not found.
+     */
+    @Nullable
+    Config getSubsectionOrNull(@NotNull String path);
+
+    /**
+     * Get an integer from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or 0 if not found.
+     */
+    int getInt(@NotNull String path);
+
+    /**
+     * Get an integer from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or null if not found.
+     */
+    @Nullable
+    Integer getIntOrNull(@NotNull String path);
+
+    /**
+     * Get an integer from config with a specified default (not found) value.
+     *
+     * @param path The key to fetch the value from.
+     * @param def  The value to default to if not found.
+     * @return The found value, or the default.
+     */
+    int getInt(@NotNull String path,
+               int def);
+
+    /**
+     * Get a list of integers from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or a blank {@link java.util.ArrayList} if not found.
+     */
+    @NotNull
+    List<Integer> getInts(@NotNull String path);
+
+    /**
+     * Get a list of integers from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or null if not found.
+     */
+    @Nullable
+    List<Integer> getIntsOrNull(@NotNull String path);
+
+    /**
+     * Get a boolean from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or false if not found.
+     */
+    boolean getBool(@NotNull String path);
+
+    /**
+     * Get a boolean from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or null if not found.
+     */
+    @Nullable
+    Boolean getBoolOrNull(@NotNull String path);
+
+    /**
+     * Get a list of booleans from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or a blank {@link java.util.ArrayList} if not found.
+     */
+    @NotNull
+    List<Boolean> getBools(@NotNull String path);
+
+    /**
+     * Get a list of booleans from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or null if not found.
+     */
+    @Nullable
+    List<Boolean> getBoolsOrNull(@NotNull String path);
+
+    /**
+     * Get a string from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or an empty string if not found.
+     */
+    @NotNull
+    String getString(@NotNull String path);
+
+    /**
+     * Get a string from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or null if not found.
+     */
+    @Nullable
+    String getStringOrNull(@NotNull String path);
+
+    /**
+     * Get a list of strings from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or a blank {@link java.util.ArrayList} if not found.
+     */
+    @NotNull
+    List<String> getStrings(@NotNull String path);
+
+    /**
+     * Get a list of strings from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or null if not found.
+     */
+    @Nullable
+    List<String> getStringsOrNull(@NotNull String path);
+
+    /**
+     * Get a decimal from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or 0 if not found.
+     */
+    double getDouble(@NotNull String path);
+
+    /**
+     * Get a decimal from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or null if not found.
+     */
+    @Nullable
+    Double getDoubleOrNull(@NotNull String path);
+
+    /**
+     * Get a list of decimals from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or a blank {@link java.util.ArrayList} if not found.
+     */
+    @NotNull
+    List<Double> getDoubles(@NotNull String path);
+
+    /**
+     * Get a list of decimals from config.
+     *
+     * @param path The key to fetch the value from.
+     * @return The found value, or null if not found.
+     */
+    @Nullable
+    List<Double> getDoublesOrNull(@NotNull String path);
+}

eco-util/src/main/java/com/willfp/eco/util/config/StaticOptionalConfig.java

@@ -0,0 +1,40 @@
+package com.willfp.eco.util.config;
+
+import com.willfp.eco.internal.config.AbstractUndefinedConfig;
+import com.willfp.eco.util.plugin.AbstractEcoPlugin;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.jetbrains.annotations.NotNull;
+
+public abstract class StaticOptionalConfig extends AbstractUndefinedConfig<YamlConfiguration> {
+    /**
+     * Config implementation for passing YamlConfigurations.
+     * <p>
+     * Does not automatically update.
+     *
+     * @param configName The name of the config
+     * @param plugin     The plugin.
+     * @param config     The YamlConfiguration handle.
+     * @deprecated Plugin not required.
+     */
+    @Deprecated
+    public StaticOptionalConfig(@NotNull final String configName,
+                                @NotNull final AbstractEcoPlugin plugin,
+                                @NotNull final YamlConfiguration config) {
+        this(configName, config);
+    }
+
+    /**
+     * Config implementation for passing YamlConfigurations.
+     * <p>
+     * Does not automatically update.
+     *
+     * @param configName The name of the config
+     * @param config     The YamlConfiguration handle.
+     */
+    public StaticOptionalConfig(@NotNull final String configName,
+                                @NotNull final YamlConfiguration config) {
+        super(configName);
+
+        init(config);
+    }
+}

eco-util/src/main/java/com/willfp/eco/util/display/Display.java

@@ -16,6 +16,7 @@ import java.util.List;
 import java.util.Map;
 
 @UtilityClass
+@SuppressWarnings("deprecation")
 public class Display {
     /**
      * The prefix for lore lines.
@@ -40,6 +41,8 @@ public class Display {
     public void registerDisplayModule(@NotNull final DisplayModule module) {
         List<DisplayModule> modules = MODULES.get(module.getPriority());
 
+        modules.removeIf(module1 -> module1.getPluginName().equalsIgnoreCase(module.getPluginName()));
+
         modules.add(module);
 
         MODULES.put(module.getPriority(), modules);
@@ -52,17 +55,21 @@ public class Display {
      * @return The itemstack.
      */
     public ItemStack display(@NotNull final ItemStack itemStack) {
-        if (isFinalized(itemStack)) {
-            unfinalize(itemStack);
-            return itemStack;
+        if (!itemStack.hasItemMeta()) {
+            return itemStack; // return early if there's no customization of the item
+        }
+
+        Map<String, Object[]> pluginVarArgs = new HashMap<>();
+
+        for (DisplayPriority priority : DisplayPriority.values()) {
+            List<DisplayModule> modules = MODULES.get(priority);
+            for (DisplayModule module : modules) {
+                pluginVarArgs.put(module.getPluginName(), module.generateVarArgs(itemStack));
+            }
         }
 
         revert(itemStack);
 
-        if (!itemStack.hasItemMeta()) {
-            return itemStack;
-        }
-
         ItemMeta meta = itemStack.getItemMeta();
 
         if (meta == null) {
@@ -72,7 +79,9 @@ public class Display {
         for (DisplayPriority priority : DisplayPriority.values()) {
             List<DisplayModule> modules = MODULES.get(priority);
             for (DisplayModule module : modules) {
+                Object[] varargs = pluginVarArgs.get(module.getPluginName());
                 module.display(itemStack);
+                module.display(itemStack, varargs);
             }
         }
 
@@ -96,9 +105,8 @@ public class Display {
      * @return The itemstack.
      */
     public ItemStack revert(@NotNull final ItemStack itemStack) {
-        if (isFinalized(itemStack)) {
+        if (Display.isFinalized(itemStack)) {
             unfinalize(itemStack);
-            return itemStack;
         }
 
         if (!itemStack.hasItemMeta()) {
@@ -113,16 +121,11 @@ public class Display {
 
         List<String> lore = meta.getLore();
 
-        if (lore == null) {
-            lore = new ArrayList<>();
+        if (lore != null && lore.removeIf(line -> line.startsWith(Display.PREFIX))) { // only apply lore modification if needed
+            meta.setLore(lore);
+            itemStack.setItemMeta(meta);
         }
 
-        lore.removeIf(line -> line.startsWith(Display.PREFIX));
-
-        meta.setLore(lore);
-
-        itemStack.setItemMeta(meta);
-
         for (DisplayPriority priority : DisplayPriority.values()) {
             List<DisplayModule> modules = MODULES.get(priority);
             for (DisplayModule module : modules) {

eco-util/src/main/java/com/willfp/eco/util/display/DisplayModule.java

@@ -29,13 +29,51 @@ public abstract class DisplayModule extends PluginDependent {
      * Display an item.
      *
      * @param itemStack The item.
+     * @param args      Optional args for display.
      */
-    protected abstract void display(@NotNull ItemStack itemStack);
+    protected void display(@NotNull final ItemStack itemStack,
+                           @NotNull final Object... args) {
+        // Technically optional.
+    }
+
+    /**
+     * Display an item.
+     * <p>
+     * This method exists for parity with older plugins that don't include the varargs.
+     *
+     * @param itemStack The item.
+     * @deprecated Use {@link this#display(ItemStack, Object...)} instead.
+     */
+    @Deprecated
+    protected void display(@NotNull final ItemStack itemStack) {
+        // Technically optional.
+    }
 
     /**
      * Revert an item.
      *
      * @param itemStack The item.
      */
-    protected abstract void revert(@NotNull ItemStack itemStack);
+    protected void revert(@NotNull final ItemStack itemStack) {
+        // Technically optoinal.
+    }
+
+    /**
+     * Create varargs to pass back to itemstack after reverting, but before display.
+     *
+     * @param itemStack The itemStack.
+     * @return The plugin-specific varargs.
+     */
+    protected Object[] generateVarArgs(@NotNull final ItemStack itemStack) {
+        return new Object[0];
+    }
+
+    /**
+     * Get name of plugin.
+     *
+     * @return The plugin name.
+     */
+    final String getPluginName() {
+        return super.getPlugin().getPluginName();
+    }
 }

eco-util/src/main/java/com/willfp/eco/util/serialization/Deserializer.java

@@ -0,0 +1,14 @@
+package com.willfp.eco.util.serialization;
+
+import com.willfp.eco.util.config.Config;
+import org.jetbrains.annotations.NotNull;
+
+public abstract class Deserializer<T extends EcoSerializable<T>> {
+    /**
+     * Deserialize a config into an object.
+     *
+     * @param config The config.
+     * @return The object.
+     */
+    public abstract T deserialize(@NotNull Config config);
+}

eco-util/src/main/java/com/willfp/eco/util/serialization/EcoSerializable.java

@@ -0,0 +1,14 @@
+package com.willfp.eco.util.serialization;
+
+import com.willfp.eco.util.config.Config;
+import org.jetbrains.annotations.NotNull;
+
+public interface EcoSerializable<T> {
+    /**
+     * Serialize an object into a config.
+     *
+     * @return The config.
+     */
+    @NotNull
+    Config serialize();
+}

eco-util/src/main/java/com/willfp/eco/util/serialization/NoRegisteredDeserializerException.java

@@ -0,0 +1,14 @@
+package com.willfp.eco.util.serialization;
+
+import org.jetbrains.annotations.NotNull;
+
+public class NoRegisteredDeserializerException extends Exception {
+    /**
+     * Create new NoRegisteredDeserializerException.
+     *
+     * @param message The message.
+     */
+    public NoRegisteredDeserializerException(@NotNull final String message) {
+        super(message);
+    }
+}

gradle.properties

@@ -1,2 +1,2 @@
-version = 4.0.0
+version = 4.3.0
 plugin-name = eco