Cleaned up StringUtils

Fixed CustoMCrafting compatibility

Updated CustomCrafting Items lookup integration

Added a warning for empty recipes

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Auxilor Community Discord
+    url: https://discord.gg/ZcwpSsE/
+    about: Join the Auxilor discord to get help from support staff and the general community!
+  - name: The most common issues people have
+    url: https://github.com/Auxilor/eco/issues/78
+    about: Check the list of known common issues to see if your issue has already been solved

.github/ISSUE_TEMPLATE/report-a-bug.md

@@ -0,0 +1,31 @@
+---
+name: Report a Bug
+about: Report an issue with the plugin
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior: 
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Server Information (please complete the following information):**
+- Version: (output of `/ver` command)
+- Version of plugin and eco (`/ver eco`, `/ver <plugin>`)
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/request-a-feature.md

@@ -0,0 +1,20 @@
+---
+name: Request a Feature
+about: Suggest an idea for this plugin
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

build.gradle.kts

@@ -67,6 +67,9 @@ allprojects {
 
         // Crunch
         maven("https://redempt.dev")
+
+        // LibsDisguises
+        maven("https://repo.md-5.net/content/groups/public/")
     }
 
     dependencies {
@@ -80,6 +83,10 @@ allprojects {
         compileOnly("net.kyori:adventure-api:4.9.3")
         compileOnly("net.kyori:adventure-text-serializer-gson:4.9.3")
         compileOnly("net.kyori:adventure-text-serializer-legacy:4.9.3")
+
+        // Other
+        compileOnly("com.google.guava:guava:31.0.1-jre")
+        compileOnly("com.github.ben-manes.caffeine:caffeine:3.0.5")
     }
 
     tasks.withType<JavaCompile> {
@@ -94,14 +101,12 @@ allprojects {
         exclude(group = "org.spongepowered", module = "configurate-hocon")
         exclude(group = "com.darkblade12", module = "particleeffect")
         exclude(group = "com.github.cryptomorin", module = "XSeries")
-        exclude(group = "org.apache.commons", module = "commons-lang3")
     }
 
     tasks {
         shadowJar {
             relocate("org.bstats", "com.willfp.eco.shaded.bstats")
             relocate("net.kyori.adventure.text.minimessage", "com.willfp.eco.shaded.minimessage")
-            relocate("redempt.crunch", "com.willfp.eco.shaded.crunch")
         }
 
         compileJava {

eco-api/build.gradle

@@ -15,7 +15,6 @@ dependencies {
     compileOnly 'org.apache.maven:maven-artifact:3.8.1'
     compileOnly 'com.comphenix.protocol:ProtocolLib:4.6.1-SNAPSHOT'
     compileOnly 'com.google.code.gson:gson:2.8.8'
-    compileOnly 'org.apache.commons:commons-lang3:3.0'
 }
 
 java {

eco-api/src/main/java/com/willfp/eco/core/Eco.java

@@ -4,6 +4,12 @@ import org.apache.commons.lang.Validate;
 import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
 /**
  * Holds the instance of the eco handler for bridging between the frontend
  * and backend.
@@ -52,6 +58,24 @@ public final class Eco {
         return handler;
     }
 
+    /**
+     * Eco Handler components are internals, so if a class is marked as a handler component,
+     * then it should be treated the same as if it was marked with {@link ApiStatus.Internal}.
+     * <p>
+     * If a class is marked with {@link HandlerComponent}, <strong>Do not reference it in
+     * your code!</strong> It can and will contain breaking changes between minor versions and
+     * even patches, and you will create compatibility issues by using them.
+     * <p>
+     * Handler components should also be marked with {@link ApiStatus.Internal} in order to
+     * cause compiler / IDE warnings.
+     */
+    @Documented
+    @Retention(RetentionPolicy.CLASS)
+    @Target({ElementType.TYPE})
+    public @interface HandlerComponent {
+
+    }
+
     private Eco() {
         throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
     }

eco-api/src/main/java/com/willfp/eco/core/Handler.java

@@ -2,7 +2,7 @@ package com.willfp.eco.core;
 
 import com.willfp.eco.core.config.updating.ConfigHandler;
 import com.willfp.eco.core.config.wrapper.ConfigFactory;
-import com.willfp.eco.core.data.PlayerProfileHandler;
+import com.willfp.eco.core.data.ProfileHandler;
 import com.willfp.eco.core.data.keys.KeyRegistry;
 import com.willfp.eco.core.drops.DropQueueFactory;
 import com.willfp.eco.core.events.EventManager;
@@ -19,6 +19,7 @@ import com.willfp.eco.core.requirement.RequirementFactory;
 import com.willfp.eco.core.scheduling.Scheduler;
 import net.kyori.adventure.platform.bukkit.BukkitAudiences;
 import org.bukkit.Location;
+import org.bukkit.NamespacedKey;
 import org.bukkit.entity.Entity;
 import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.ApiStatus;
@@ -233,7 +234,7 @@ public interface Handler {
      * @return The handler.
      */
     @NotNull
-    PlayerProfileHandler getPlayerProfileHandler();
+    ProfileHandler getProfileHandler();
 
     /**
      * Create dummy entity - never spawned, exists purely in code.
@@ -243,4 +244,19 @@ public interface Handler {
      */
     @NotNull
     Entity createDummyEntity(@NotNull Location location);
+
+    /**
+     * Create a {@link NamespacedKey} quickly
+     * <p>
+     * Bypasses the constructor, allowing for the creation of invalid keys,
+     * therefore this is considered unsafe and should only be called after
+     * the key has been confirmed to be valid.
+     *
+     * @param namespace The namespace.
+     * @param key       The key.
+     * @return The key.
+     */
+    @NotNull
+    NamespacedKey createNamespacedKey(@NotNull String namespace,
+                                      @NotNull String key);
 }

eco-api/src/main/java/com/willfp/eco/core/config/wrapper/ConfigFactory.java

@@ -1,5 +1,6 @@
 package com.willfp.eco.core.config.wrapper;
 
+import com.willfp.eco.core.Eco;
 import com.willfp.eco.core.PluginLike;
 import com.willfp.eco.core.config.ConfigType;
 import com.willfp.eco.core.config.interfaces.Config;
@@ -14,6 +15,7 @@ import java.util.Map;
  * Internal component to create backend config implementations.
  */
 @ApiStatus.Internal
+@Eco.HandlerComponent
 public interface ConfigFactory {
     /**
      * Updatable config.

eco-api/src/main/java/com/willfp/eco/core/data/PlayerProfile.java

@@ -1,7 +1,6 @@
 package com.willfp.eco.core.data;
 
 import com.willfp.eco.core.Eco;
-import com.willfp.eco.core.data.keys.PersistentDataKey;
 import org.bukkit.OfflinePlayer;
 import org.jetbrains.annotations.NotNull;
 
@@ -12,26 +11,7 @@ import java.util.UUID;
  * <p>
  * Profiles save automatically, so there is no need to save after changes.
  */
-public interface PlayerProfile {
-    /**
-     * Write a key to a player's persistent data.
-     *
-     * @param key   The key.
-     * @param value The value.
-     * @param <T>   The type of the key.
-     */
-    <T> void write(@NotNull PersistentDataKey<T> key,
-                   @NotNull T value);
-
-    /**
-     * Read a key from a player's persistent data.
-     *
-     * @param key The key.
-     * @param <T> The type of the key.
-     * @return The value, or the default value if not found.
-     */
-    <T> @NotNull T read(@NotNull PersistentDataKey<T> key);
-
+public interface PlayerProfile extends Profile {
     /**
      * Load a player profile.
      *
@@ -51,6 +31,6 @@ public interface PlayerProfile {
      */
     @NotNull
     static PlayerProfile load(@NotNull final UUID uuid) {
-        return Eco.getHandler().getPlayerProfileHandler().load(uuid);
+        return Eco.getHandler().getProfileHandler().load(uuid);
     }
 }

eco-api/src/main/java/com/willfp/eco/core/data/Profile.java

@@ -0,0 +1,30 @@
+package com.willfp.eco.core.data;
+
+import com.willfp.eco.core.data.keys.PersistentDataKey;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Persistent data storage interface.
+ * <p>
+ * Profiles save automatically, so there is no need to save after changes.
+ */
+public interface Profile {
+    /**
+     * Write a key to persistent data.
+     *
+     * @param key   The key.
+     * @param value The value.
+     * @param <T>   The type of the key.
+     */
+    <T> void write(@NotNull PersistentDataKey<T> key,
+                   @NotNull T value);
+
+    /**
+     * Read a key from persistent data.
+     *
+     * @param key The key.
+     * @param <T> The type of the key.
+     * @return The value, or the default value if not found.
+     */
+    <T> @NotNull T read(@NotNull PersistentDataKey<T> key);
+}

eco-api/src/main/java/com/willfp/eco/core/data/ProfileHandler.java

@@ -1,15 +1,19 @@
 package com.willfp.eco.core.data;
 
+import com.willfp.eco.core.Eco;
 import com.willfp.eco.core.data.keys.PersistentDataKey;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.Set;
 import java.util.UUID;
 
 /**
- * API to handle player profiles.
+ * API to handle profiles.
  */
-public interface PlayerProfileHandler {
+@ApiStatus.Internal
+@Eco.HandlerComponent
+public interface ProfileHandler {
     /**
      * Load a player profile.
      *
@@ -18,6 +22,13 @@ public interface PlayerProfileHandler {
      */
     PlayerProfile load(@NotNull UUID uuid);
 
+    /**
+     * Load the server profile.
+     *
+     * @return The profile.
+     */
+    ServerProfile loadServerProfile();
+
     /**
      * Unload a player profile from memory.
      * <p>
@@ -37,7 +48,7 @@ public interface PlayerProfileHandler {
      */
     @Deprecated
     default void savePlayer(@NotNull UUID uuid) {
-        this.saveKeysForPlayer(uuid, PersistentDataKey.values());
+        this.saveKeysFor(uuid, PersistentDataKey.values());
     }
 
     /**
@@ -48,8 +59,8 @@ public interface PlayerProfileHandler {
      * @param uuid The uuid.
      * @param keys The keys.
      */
-    void saveKeysForPlayer(@NotNull UUID uuid,
-                           @NotNull Set<PersistentDataKey<?>> keys);
+    void saveKeysFor(@NotNull UUID uuid,
+                     @NotNull Set<PersistentDataKey<?>> keys);
 
     /**
      * Save all player data.

eco-api/src/main/java/com/willfp/eco/core/data/ServerProfile.java

@@ -0,0 +1,21 @@
+package com.willfp.eco.core.data;
+
+import com.willfp.eco.core.Eco;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Persistent data storage interface for servers.
+ * <p>
+ * Profiles save automatically, so there is no need to save after changes.
+ */
+public interface ServerProfile extends Profile {
+    /**
+     * Load the server profile.
+     *
+     * @return The profile.
+     */
+    @NotNull
+    static ServerProfile load() {
+        return Eco.getHandler().getProfileHandler().loadServerProfile();
+    }
+}

eco-api/src/main/java/com/willfp/eco/core/data/keys/PersistentDataKey.java

@@ -25,7 +25,7 @@ public class PersistentDataKey<T> {
     /**
      * The persistent data key type.
      */
-    private final PersistentDataKeyType type;
+    private final PersistentDataKeyType<T> type;
 
     /**
      * Create a new Persistent Data Key.
@@ -35,7 +35,7 @@ public class PersistentDataKey<T> {
      * @param defaultValue The default value.
      */
     public PersistentDataKey(@NotNull final NamespacedKey key,
-                             @NotNull final PersistentDataKeyType type,
+                             @NotNull final PersistentDataKeyType<T> type,
                              @NotNull final T defaultValue) {
         this.key = key;
         this.defaultValue = defaultValue;
@@ -76,7 +76,7 @@ public class PersistentDataKey<T> {
      *
      * @return The key type.
      */
-    public PersistentDataKeyType getType() {
+    public PersistentDataKeyType<T> getType() {
         return this.type;
     }
 

eco-api/src/main/java/com/willfp/eco/core/data/keys/PersistentDataKeyType.java

@@ -1,26 +1,108 @@
 package com.willfp.eco.core.data.keys;
 
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * All storable data key types.
+ *
+ * @param <T> The type.
  */
-public enum PersistentDataKeyType {
+public final class PersistentDataKeyType<T> {
+    /**
+     * The registered key types.
+     */
+    private static final List<PersistentDataKeyType<?>> VALUES = new ArrayList<>();
+
     /**
      * String.
      */
-    STRING,
+    public static final PersistentDataKeyType<String> STRING = new PersistentDataKeyType<>(String.class, "STRING");
 
     /**
      * Boolean.
      */
-    BOOLEAN,
+    public static final PersistentDataKeyType<Boolean> BOOLEAN = new PersistentDataKeyType<>(Boolean.class, "BOOLEAN");
 
     /**
-     * Integer.
+     * Int.
      */
-    INT,
+    public static final PersistentDataKeyType<Integer> INT = new PersistentDataKeyType<>(Integer.class, "INT");
 
     /**
      * Double.
      */
-    DOUBLE
+    public static final PersistentDataKeyType<Double> DOUBLE = new PersistentDataKeyType<>(Double.class, "DOUBLE");
+
+    /**
+     * The class of the type.
+     */
+    private final Class<T> typeClass;
+
+    /**
+     * The name of the key type.
+     */
+    private final String name;
+
+    /**
+     * Get the class of the type.
+     *
+     * @return The class.
+     */
+    public Class<T> getTypeClass() {
+        return typeClass;
+    }
+
+    /**
+     * Get the name of the key type.
+     *
+     * @return The name.
+     */
+    public String name() {
+        return name;
+    }
+
+    /**
+     * Create new PersistentDataKeyType.
+     *
+     * @param typeClass The type class.
+     * @param name      The name.
+     */
+    private PersistentDataKeyType(@NotNull final Class<T> typeClass,
+                                  @NotNull final String name) {
+        VALUES.add(this);
+
+        this.typeClass = typeClass;
+        this.name = name;
+    }
+
+    /**
+     * Get all registered {@link PersistentDataKeyType}s.
+     *
+     * @return The registered types.
+     */
+    @NotNull
+    public static PersistentDataKeyType<?>[] values() {
+        return VALUES.toArray(new PersistentDataKeyType[0]);
+    }
+
+    /**
+     * Get a key type from a name.
+     *
+     * @param name The name.
+     * @return The type, or null if not found.
+     */
+    @Nullable
+    public static PersistentDataKeyType<?> valueOf(@NotNull final String name) {
+        for (PersistentDataKeyType<?> type : VALUES) {
+            if (type.name.equalsIgnoreCase(name)) {
+                return type;
+            }
+        }
+
+        return null;
+    }
 }

eco-api/src/main/java/com/willfp/eco/core/display/DisplayHandler.java

@@ -1,13 +1,17 @@
 package com.willfp.eco.core.display;
 
+import com.willfp.eco.core.Eco;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 /**
  * Interface for display implementations.
  */
+@ApiStatus.Internal
+@Eco.HandlerComponent
 public interface DisplayHandler {
     /**
      * Register display module.

eco-api/src/main/java/com/willfp/eco/core/drops/DropQueueFactory.java

@@ -1,11 +1,15 @@
 package com.willfp.eco.core.drops;
 
+import com.willfp.eco.core.Eco;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 
 /**
  * Internal component to create backend DropQueue implementations.
  */
+@ApiStatus.Internal
+@Eco.HandlerComponent
 public interface DropQueueFactory {
     /**
      * Create a DropQueue.

eco-api/src/main/java/com/willfp/eco/core/drops/InternalDropQueue.java

@@ -1,7 +1,9 @@
 package com.willfp.eco.core.drops;
 
+import com.willfp.eco.core.Eco;
 import org.bukkit.Location;
 import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.Collection;
@@ -9,6 +11,8 @@ import java.util.Collection;
 /**
  * Internal interface for backend DropQueue implementations.
  */
+@ApiStatus.Internal
+@Eco.HandlerComponent
 public interface InternalDropQueue {
     /**
      * Add item to queue.

eco-api/src/main/java/com/willfp/eco/core/gui/GUIFactory.java

@@ -1,15 +1,19 @@
 package com.willfp.eco.core.gui;
 
+import com.willfp.eco.core.Eco;
 import com.willfp.eco.core.gui.menu.MenuBuilder;
 import com.willfp.eco.core.gui.slot.SlotBuilder;
 import com.willfp.eco.core.gui.slot.functional.SlotProvider;
 import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 
 /**
  * Internal component used by {@link com.willfp.eco.core.gui.menu.Menu#builder(int)}
  * and {@link com.willfp.eco.core.gui.slot.Slot#builder(ItemStack)}.
  */
+@ApiStatus.Internal
+@Eco.HandlerComponent
 public interface GUIFactory {
     /**
      * Create slot builder.

eco-api/src/main/java/com/willfp/eco/core/integrations/placeholder/PlaceholderEntry.java

@@ -6,6 +6,7 @@ import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.Objects;
 import java.util.function.Function;
 
 /**
@@ -141,4 +142,21 @@ public class PlaceholderEntry {
     public void register() {
         PlaceholderManager.registerPlaceholder(this);
     }
+
+    @Override
+    public boolean equals(@Nullable final Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (!(o instanceof PlaceholderEntry entry)) {
+            return false;
+        }
+        return Objects.equals(this.getIdentifier(), entry.getIdentifier())
+                && Objects.equals(this.getPlugin(), entry.getPlugin());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.getIdentifier(), this.getPlugin());
+    }
 }

eco-api/src/main/java/com/willfp/eco/core/integrations/placeholder/PlaceholderManager.java

@@ -1,5 +1,7 @@
 package com.willfp.eco.core.integrations.placeholder;
 
+import com.github.benmanes.caffeine.cache.Caffeine;
+import com.github.benmanes.caffeine.cache.LoadingCache;
 import com.willfp.eco.core.Eco;
 import com.willfp.eco.core.EcoPlugin;
 import org.bukkit.entity.Player;
@@ -12,6 +14,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Class to handle placeholder integrations.
@@ -27,10 +30,17 @@ public final class PlaceholderManager {
      */
     private static final Set<PlaceholderIntegration> REGISTERED_INTEGRATIONS = new HashSet<>();
 
+    /**
+     * Placeholder Cache.
+     */
+    private static final LoadingCache<EntryWithPlayer, String> PLACEHOLDER_CACHE = Caffeine.newBuilder()
+            .expireAfterWrite(50, TimeUnit.MILLISECONDS)
+            .build(key -> key.entry.getResult(key.player));
+
     /**
      * Register a new placeholder integration.
      *
-     * @param integration The {@link PlaceholderIntegration} to register.
+     * @param integration The {@link com.willfp.eco.core.integrations.placeholder.PlaceholderIntegration} to register.
      */
     public static void addIntegration(@NotNull final PlaceholderIntegration integration) {
         integration.registerIntegration();
@@ -40,7 +50,7 @@ public final class PlaceholderManager {
     /**
      * Register a placeholder.
      *
-     * @param expansion The {@link PlaceholderEntry} to register.
+     * @param expansion The {@link com.willfp.eco.core.integrations.placeholder.PlaceholderEntry} to register.
      */
     public static void registerPlaceholder(@NotNull final PlaceholderEntry expansion) {
         EcoPlugin plugin = expansion.getPlugin() == null ? Eco.getHandler().getEcoPlugin() : expansion.getPlugin();
@@ -75,7 +85,7 @@ public final class PlaceholderManager {
     public static String getResult(@Nullable final Player player,
                                    @NotNull final String identifier,
                                    @Nullable final EcoPlugin plugin) {
-        EcoPlugin owner = player == null ? Eco.getHandler().getEcoPlugin() : plugin;
+        EcoPlugin owner = plugin == null ? Eco.getHandler().getEcoPlugin() : plugin;
         PlaceholderEntry entry = REGISTERED_PLACEHOLDERS.getOrDefault(owner, new HashMap<>()).get(identifier.toLowerCase());
 
         if (entry == null && plugin != null) {
@@ -94,7 +104,7 @@ public final class PlaceholderManager {
             return "";
         }
 
-        return entry.getResult(player);
+        return PLACEHOLDER_CACHE.get(new EntryWithPlayer(entry, player));
     }
 
     /**
@@ -128,6 +138,11 @@ public final class PlaceholderManager {
         return found;
     }
 
+    private static record EntryWithPlayer(@NotNull PlaceholderEntry entry,
+                                          @Nullable Player player) {
+
+    }
+
     private PlaceholderManager() {
         throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
     }

eco-api/src/main/java/com/willfp/eco/core/items/HashedItem.java

@@ -0,0 +1,103 @@
+package com.willfp.eco.core.items;
+
+import com.willfp.eco.core.fast.FastItemStack;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * An item and its {@link com.willfp.eco.core.fast.FastItemStack} hash.
+ */
+public final class HashedItem {
+    /**
+     * The item.
+     */
+    private final ItemStack item;
+
+    /**
+     * The hash.
+     */
+    private final int hash;
+
+    /**
+     * Create new hashed item.
+     *
+     * @param item The item.
+     * @param hash The hash.
+     */
+    private HashedItem(@NotNull final ItemStack item,
+                       final int hash) {
+        this.item = item;
+        this.hash = hash;
+    }
+
+    /**
+     * Get the item.
+     *
+     * @return The ItemStack.
+     */
+    public ItemStack getItem() {
+        return this.item;
+    }
+
+    /**
+     * Get the hash.
+     *
+     * @return The hash.
+     */
+    public int getHash() {
+        return this.hash;
+    }
+
+    /**
+     * Kotlin destructuring support.
+     *
+     * @return The ItemStack.
+     */
+    public ItemStack component1() {
+        return this.getItem();
+    }
+
+    /**
+     * Kotlin destructuring support.
+     *
+     * @return The hash.
+     */
+    public int component2() {
+        return this.getHash();
+    }
+
+    @Override
+    public int hashCode() {
+        return this.hash;
+    }
+
+    @Override
+    public boolean equals(@Nullable final Object other) {
+        if (!(other instanceof HashedItem o)) {
+            return false;
+        }
+
+        return o.hash == this.hash;
+    }
+
+    /**
+     * Hashed item from an item.
+     *
+     * @param item The item.
+     * @return The hashed item.
+     */
+    public static HashedItem of(@NotNull final ItemStack item) {
+        return new HashedItem(item, FastItemStack.wrap(item).hashCode());
+    }
+
+    /**
+     * Hashed item from a fast item stack.
+     *
+     * @param item The item.
+     * @return The hashed item.
+     */
+    public static HashedItem of(@NotNull final FastItemStack item) {
+        return new HashedItem(item.unwrap(), item.hashCode());
+    }
+}

eco-api/src/main/java/com/willfp/eco/core/items/Items.java

@@ -1,6 +1,7 @@
 package com.willfp.eco.core.items;
 
-import com.willfp.eco.core.fast.FastItemStack;
+import com.github.benmanes.caffeine.cache.Caffeine;
+import com.github.benmanes.caffeine.cache.LoadingCache;
 import com.willfp.eco.core.items.args.LookupArgParser;
 import com.willfp.eco.core.items.provider.ItemProvider;
 import com.willfp.eco.core.recipe.parts.EmptyTestableItem;
@@ -14,7 +15,6 @@ import org.bukkit.Material;
 import org.bukkit.NamespacedKey;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
-import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -22,8 +22,10 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.TimeUnit;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
@@ -37,9 +39,23 @@ public final class Items {
     private static final Map<NamespacedKey, TestableItem> REGISTRY = new ConcurrentHashMap<>();
 
     /**
-     * Cached custom item lookups, using {@link FastItemStack#hashCode()}.
+     * Cached custom item lookups, using {@link HashedItem}.
      */
-    private static final Map<Integer, TestableItem> CACHE = new ConcurrentHashMap<>();
+    private static final LoadingCache<HashedItem, Optional<TestableItem>> CACHE = Caffeine.newBuilder()
+            .expireAfterAccess(5, TimeUnit.MINUTES)
+            .build(
+                    key -> {
+                        TestableItem match = null;
+                        for (TestableItem item : REGISTRY.values()) {
+                            if (item.matches(key.getItem())) {
+                                match = item;
+                                break;
+                            }
+                        }
+
+                        return Optional.ofNullable(match);
+                    }
+            );
 
     /**
      * All item providers.
@@ -201,7 +217,7 @@ public final class Items {
             }
         }
 
-        // Marked as redundant but i am covering all bases here
+        // Marked as redundant but I am covering all bases here
         if (item == null || item instanceof EmptyTestableItem) {
             return new EmptyTestableItem();
         }
@@ -294,30 +310,7 @@ public final class Items {
      */
     @Nullable
     public static CustomItem getCustomItem(@NotNull final ItemStack itemStack) {
-        int hash = FastItemStack.wrap(itemStack).hashCode();
-        TestableItem cached = CACHE.get(hash);
-        if (cached != null) {
-            return getOrWrap(cached);
-        } else {
-            CACHE.remove(hash);
-        }
-
-        TestableItem match = null;
-
-        for (TestableItem item : REGISTRY.values()) {
-            if (item.matches(itemStack)) {
-                match = item;
-                break;
-            }
-        }
-
-        if (match == null) {
-            return null;
-        }
-
-        CACHE.put(hash, match);
-
-        return getOrWrap(match);
+        return CACHE.get(HashedItem.of(itemStack)).map(Items::getOrWrap).orElse(null);
     }
 
     /**
@@ -351,14 +344,6 @@ public final class Items {
         }
     }
 
-    /**
-     * Clear the lookup cache.
-     */
-    @ApiStatus.Internal
-    public static void clearCache() {
-        CACHE.clear();
-    }
-
     private Items() {
         throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
     }

eco-api/src/main/java/com/willfp/eco/core/recipe/Recipes.java

@@ -6,6 +6,8 @@ import com.willfp.eco.core.EcoPlugin;
 import com.willfp.eco.core.items.Items;
 import com.willfp.eco.core.recipe.recipes.CraftingRecipe;
 import com.willfp.eco.core.recipe.recipes.ShapedCraftingRecipe;
+import com.willfp.eco.util.NamespacedKeyUtils;
+import org.bukkit.Bukkit;
 import org.bukkit.NamespacedKey;
 import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.NotNull;
@@ -58,7 +60,10 @@ public final class Recipes {
         }
 
         if (key.getKey().contains("_displayed")) {
-            NamespacedKey otherKey = new NamespacedKey(key.getNamespace(), key.getKey().replace("_displayed", ""));
+            NamespacedKey otherKey = NamespacedKeyUtils.create(
+                    key.getNamespace(),
+                    key.getKey().replace("_displayed", "")
+            );
 
             return RECIPES.get(otherKey);
         }
@@ -92,6 +97,7 @@ public final class Recipes {
      * @param permission    The permission.
      * @return The recipe.
      */
+    @Nullable
     public static CraftingRecipe createAndRegisterRecipe(@NotNull final EcoPlugin plugin,
                                                          @NotNull final String key,
                                                          @NotNull final ItemStack output,
@@ -105,6 +111,12 @@ public final class Recipes {
             builder.setRecipePart(i, Items.lookup(recipeStrings.get(i)));
         }
 
+        if (builder.isAir()) {
+            Bukkit.getLogger().warning("RECIPE ERROR! " + plugin.getName() + ":" + key + " consists only");
+            Bukkit.getLogger().warning("of air or invalid items! Please change that or disable this recipe.");
+            return null;
+        }
+
         ShapedCraftingRecipe recipe = builder.build();
         recipe.register();
 

eco-api/src/main/java/com/willfp/eco/core/recipe/recipes/ShapedCraftingRecipe.java

@@ -287,6 +287,20 @@ public final class ShapedCraftingRecipe extends PluginDependent<EcoPlugin> imple
             return this;
         }
 
+        /**
+         * Check if recipe parts are all air.
+         *
+         * @return If recipe parts are all air.
+         */
+        public boolean isAir() {
+            for (TestableItem recipePart : this.recipeParts) {
+                if (recipePart!= null && !(recipePart instanceof EmptyTestableItem)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+
         /**
          * Build the recipe.
          *

eco-api/src/main/java/com/willfp/eco/core/requirement/RequirementFactory.java

@@ -1,10 +1,14 @@
 package com.willfp.eco.core.requirement;
 
+import com.willfp.eco.core.Eco;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 
 /**
  * Interface for internal requirement factory implementations.
  */
+@ApiStatus.Internal
+@Eco.HandlerComponent
 public interface RequirementFactory {
     /**
      * Create a requirement.

eco-api/src/main/java/com/willfp/eco/util/NamespacedKeyUtils.java

@@ -1,10 +1,9 @@
 package com.willfp.eco.util;
 
+import com.willfp.eco.core.Eco;
 import org.bukkit.NamespacedKey;
 import org.jetbrains.annotations.NotNull;
 
-import java.util.Objects;
-
 /**
  * Utilities / API methods for {@link NamespacedKey}s.
  */
@@ -17,7 +16,7 @@ public final class NamespacedKeyUtils {
      */
     @NotNull
     public static NamespacedKey createEcoKey(@NotNull final String string) {
-        return Objects.requireNonNull(NamespacedKey.fromString("eco:" + string));
+        return NamespacedKeyUtils.create("eco", string);
     }
 
     /**
@@ -30,7 +29,28 @@ public final class NamespacedKeyUtils {
     @NotNull
     public static NamespacedKey create(@NotNull final String namespace,
                                        @NotNull final String key) {
-        return Objects.requireNonNull(NamespacedKey.fromString(namespace + ":" + key));
+        return Eco.getHandler().createNamespacedKey(
+                namespace,
+                key
+        );
+    }
+
+    /**
+     * Create a NamespacedKey from a string.
+     * <p>
+     * Preferred over {@link NamespacedKey#fromString(String)} for performance reasons.
+     *
+     * @param string The string.
+     * @return The key.
+     */
+    @NotNull
+    public static NamespacedKey fromString(@NotNull final String string) {
+        int index = string.indexOf(":");
+
+        return NamespacedKeyUtils.create(
+                string.substring(0, index),
+                string.substring(index + 1)
+        );
     }
 
     private NamespacedKeyUtils() {

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

@@ -1,5 +1,7 @@
 package com.willfp.eco.util;
 
+import com.github.benmanes.caffeine.cache.Caffeine;
+import com.github.benmanes.caffeine.cache.LoadingCache;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.gson.JsonSyntaxException;
@@ -20,6 +22,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
@@ -66,6 +69,42 @@ public final class StringUtils {
             .emitLegacyHoverEvent()
             .build();
 
+    /**
+     * String format cache.
+     */
+    private static final LoadingCache<String, String> STRING_FORMAT_CACHE = Caffeine.newBuilder()
+            .expireAfterAccess(10, TimeUnit.SECONDS)
+            .build(StringUtils::processFormatting);
+
+    /**
+     * Json -> Legacy Cache.
+     */
+    private static final LoadingCache<String, String> JSON_TO_LEGACY = Caffeine.newBuilder()
+            .expireAfterAccess(10, TimeUnit.SECONDS)
+            .build(
+                    json -> {
+                        try {
+                            Component component = GSON_COMPONENT_SERIALIZER.deserialize(json);
+                            return LEGACY_COMPONENT_SERIALIZER.serialize(component);
+                        } catch (JsonSyntaxException e) {
+                            return json;
+                        }
+                    }
+            );
+
+    /**
+     * Legacy -> Json Cache.
+     */
+    private static final LoadingCache<String, String> LEGACY_TO_JSON = Caffeine.newBuilder()
+            .expireAfterAccess(10, TimeUnit.SECONDS)
+            .build(
+                    legacy -> GSON_COMPONENT_SERIALIZER.serialize(
+                            Component.empty().decoration(TextDecoration.ITALIC, false).append(
+                                    LEGACY_COMPONENT_SERIALIZER.deserialize(legacy)
+                            )
+                    )
+            );
+
     /**
      * Color map.
      */
@@ -272,6 +311,11 @@ public final class StringUtils {
         if (option == FormatOption.WITH_PLACEHOLDERS) {
             processedMessage = PlaceholderManager.translatePlaceholders(processedMessage, player);
         }
+        return STRING_FORMAT_CACHE.get(processedMessage);
+    }
+
+    private static String processFormatting(@NotNull final String message) {
+        String processedMessage = message;
         processedMessage = ChatColor.translateAlternateColorCodes('&', processedMessage);
         processedMessage = translateGradients(processedMessage);
         processedMessage = translateHexColorCodes(processedMessage);
@@ -423,11 +467,8 @@ public final class StringUtils {
         if (legacy == null) {
             processed = "";
         }
-        return GSON_COMPONENT_SERIALIZER.serialize(
-                Component.empty().decoration(TextDecoration.ITALIC, false).append(
-                        LEGACY_COMPONENT_SERIALIZER.deserialize(processed)
-                )
-        );
+
+        return LEGACY_TO_JSON.get(processed);
     }
 
     /**
@@ -442,12 +483,7 @@ public final class StringUtils {
             return "";
         }
 
-        try {
-            Component component = GSON_COMPONENT_SERIALIZER.deserialize(json);
-            return LEGACY_COMPONENT_SERIALIZER.serialize(component);
-        } catch (JsonSyntaxException e) {
-            return json;
-        }
+        return JSON_TO_LEGACY.get(json);
     }
 
     /**

eco-core/core-backend/build.gradle

@@ -7,5 +7,5 @@ dependencies {
     compileOnly 'org.reflections:reflections:0.9.12'
     compileOnly 'net.kyori:adventure-text-minimessage:4.1.0-SNAPSHOT'
     compileOnly 'net.kyori:adventure-platform-bukkit:4.0.0'
-    compileOnly 'com.google.guava:guava:31.0.1-jre'
+    compileOnly 'org.objenesis:objenesis:3.2'
 }

eco-core/core-backend/src/main/kotlin/com/willfp/eco/internal/entities/EntityArgParserSilent.kt

@@ -0,0 +1,30 @@
+package com.willfp.eco.internal.entities
+
+import com.willfp.eco.core.entities.args.EntityArgParseResult
+import com.willfp.eco.core.entities.args.EntityArgParser
+import org.bukkit.entity.Animals
+
+class EntityArgParserSilent : EntityArgParser {
+    override fun parseArguments(args: Array<out String>): EntityArgParseResult? {
+        var silent = false
+
+        for (arg in args) {
+            if (arg.equals("silent", true)) {
+                silent = true
+            }
+        }
+
+        if (!silent) {
+            return null
+        }
+
+        return EntityArgParseResult(
+            {
+                it.isSilent
+            },
+            {
+                it.isSilent = true
+            }
+        )
+    }
+}

eco-core/core-backend/src/main/kotlin/com/willfp/eco/internal/factory/EcoNamespacedKeyFactory.kt

@@ -2,10 +2,11 @@ package com.willfp.eco.internal.factory
 
 import com.willfp.eco.core.EcoPlugin
 import com.willfp.eco.core.factory.NamespacedKeyFactory
+import com.willfp.eco.util.NamespacedKeyUtils
 import org.bukkit.NamespacedKey
 
 class EcoNamespacedKeyFactory(private val plugin: EcoPlugin) : NamespacedKeyFactory {
     override fun create(key: String): NamespacedKey {
-        return NamespacedKey(plugin, key)
+        return NamespacedKeyUtils.create(plugin.name, key)
     }
 }

eco-core/core-backend/src/main/kotlin/com/willfp/eco/internal/fast/InternalNamespacedKeyFactory.kt

@@ -0,0 +1,31 @@
+package com.willfp.eco.internal.fast
+
+import org.bukkit.NamespacedKey
+import org.objenesis.ObjenesisStd
+
+interface InternalNamespacedKeyFactory {
+    fun create(namespace: String, key: String): NamespacedKey
+}
+
+class FastInternalNamespacedKeyFactory : InternalNamespacedKeyFactory {
+    private val creator = ObjenesisStd().getInstantiatorOf(NamespacedKey::class.java)
+    private val namespaceField = NamespacedKey::class.java.getDeclaredField("namespace")
+        .apply { isAccessible = true }
+    private val keyField = NamespacedKey::class.java.getDeclaredField("key")
+        .apply { isAccessible = true }
+
+
+    override fun create(namespace: String, key: String): NamespacedKey {
+        val namespacedKey = creator.newInstance()
+        keyField.set(namespacedKey, key.lowercase())
+        namespaceField.set(namespacedKey, namespace.lowercase())
+        return namespacedKey
+    }
+}
+
+class SafeInternalNamespacedKeyFactory : InternalNamespacedKeyFactory {
+    override fun create(namespace: String, key: String): NamespacedKey {
+        @Suppress("DEPRECATION")
+        return NamespacedKey(namespace, key)
+    }
+}

eco-core/core-backend/src/main/kotlin/com/willfp/eco/internal/items/ArgParserEnchantment.kt

@@ -2,7 +2,7 @@ package com.willfp.eco.internal.items
 
 import com.willfp.eco.core.fast.FastItemStack
 import com.willfp.eco.core.items.args.LookupArgParser
-import org.bukkit.NamespacedKey
+import com.willfp.eco.util.NamespacedKeyUtils
 import org.bukkit.enchantments.Enchantment
 import org.bukkit.inventory.ItemStack
 import org.bukkit.inventory.meta.EnchantmentStorageMeta
@@ -20,7 +20,7 @@ class ArgParserEnchantment : LookupArgParser {
                 continue
             }
 
-            val enchant = Enchantment.getByKey(NamespacedKey.minecraft(argSplit[0].lowercase()))
+            val enchant = Enchantment.getByKey(NamespacedKeyUtils.create("minecraft", argSplit[0]))
             val level = argSplit[1].toIntOrNull()
 
             if (enchant != null && level != null) {

eco-core/core-nms/v1_16_R3/src/main/kotlin/com/willfp/eco/internal/spigot/proxy/v1_16_R3/fast/NMSFastItemStack.kt

@@ -1,6 +1,7 @@
 package com.willfp.eco.internal.spigot.proxy.v1_16_R3.fast
 
 import com.willfp.eco.internal.fast.EcoFastItemStack
+import com.willfp.eco.util.NamespacedKeyUtils
 import com.willfp.eco.util.StringUtils
 import net.minecraft.server.v1_16_R3.Item
 import net.minecraft.server.v1_16_R3.ItemEnchantedBook
@@ -11,7 +12,6 @@ import net.minecraft.server.v1_16_R3.NBTTagList
 import net.minecraft.server.v1_16_R3.NBTTagString
 import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack
 import org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers
-import org.bukkit.craftbukkit.v1_16_R3.util.CraftNamespacedKey
 import org.bukkit.enchantments.Enchantment
 import org.bukkit.inventory.ItemFlag
 import kotlin.experimental.and
@@ -29,7 +29,7 @@ class NMSFastItemStack(itemStack: org.bukkit.inventory.ItemStack) : EcoFastItemS
             val compound = base as NBTTagCompound
             val key = compound.getString("id")
             val level: Int = ('\uffff'.code.toShort() and compound.getShort("lvl")).toInt()
-            val found = Enchantment.getByKey(CraftNamespacedKey.fromStringOrNull(key))
+            val found = Enchantment.getByKey(NamespacedKeyUtils.fromString(key))
             if (found != null) {
                 foundEnchantments[found] = level
             }

eco-core/core-nms/v1_17_R1/src/main/kotlin/com/willfp/eco/internal/spigot/proxy/v1_17_R1/fast/NMSFastItemStack.kt

@@ -1,6 +1,7 @@
 package com.willfp.eco.internal.spigot.proxy.v1_17_R1.fast
 
 import com.willfp.eco.internal.fast.EcoFastItemStack
+import com.willfp.eco.util.NamespacedKeyUtils
 import com.willfp.eco.util.StringUtils
 import net.minecraft.nbt.CompoundTag
 import net.minecraft.nbt.ListTag
@@ -11,7 +12,6 @@ import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.Items
 import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack
 import org.bukkit.craftbukkit.v1_17_R1.util.CraftMagicNumbers
-import org.bukkit.craftbukkit.v1_17_R1.util.CraftNamespacedKey
 import org.bukkit.enchantments.Enchantment
 import org.bukkit.inventory.ItemFlag
 import kotlin.experimental.and
@@ -31,7 +31,7 @@ class NMSFastItemStack(itemStack: org.bukkit.inventory.ItemStack) : EcoFastItemS
             val compound = base as CompoundTag
             val key = compound.getString("id")
             val level = ('\uffff'.code.toShort() and compound.getShort("lvl")).toInt()
-            val found = Enchantment.getByKey(CraftNamespacedKey.fromStringOrNull(key))
+            val found = Enchantment.getByKey(NamespacedKeyUtils.fromString(key))
             if (found != null) {
                 foundEnchantments[found] = level
             }

eco-core/core-nms/v1_18_R1/src/main/kotlin/com/willfp/eco/internal/spigot/proxy/v1_18_R1/fast/NMSFastItemStack.kt

@@ -1,6 +1,7 @@
 package com.willfp.eco.internal.spigot.proxy.v1_18_R1.fast
 
 import com.willfp.eco.internal.fast.EcoFastItemStack
+import com.willfp.eco.util.NamespacedKeyUtils
 import com.willfp.eco.util.StringUtils
 import net.minecraft.nbt.CompoundTag
 import net.minecraft.nbt.ListTag
@@ -11,7 +12,6 @@ import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.Items
 import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack
 import org.bukkit.craftbukkit.v1_18_R1.util.CraftMagicNumbers
-import org.bukkit.craftbukkit.v1_18_R1.util.CraftNamespacedKey
 import org.bukkit.enchantments.Enchantment
 import org.bukkit.inventory.ItemFlag
 import kotlin.experimental.and
@@ -32,7 +32,7 @@ class NMSFastItemStack(itemStack: org.bukkit.inventory.ItemStack) : EcoFastItemS
             val compound = base as CompoundTag
             val key = compound.getString("id")
             val level = ('\uffff'.code.toShort() and compound.getShort("lvl")).toInt()
-            val found = Enchantment.getByKey(CraftNamespacedKey.fromStringOrNull(key))
+            val found = Enchantment.getByKey(NamespacedKeyUtils.fromString(key))
             if (found != null) {
                 foundEnchantments[found] = level
             }

eco-core/core-plugin/build.gradle

@@ -40,10 +40,9 @@ dependencies {
     compileOnly 'com.bgsoftware:SuperiorSkyblockAPI:1.8.3'
     compileOnly 'com.github.MilkBowl:VaultAPI:1.7'
     compileOnly 'world.bentobox:bentobox:1.17.3-SNAPSHOT'
-    compileOnly 'com.google.guava:guava:31.0.1-jre'
     compileOnly 'com.iridium:IridiumSkyblock:3.1.2'
     compileOnly 'com.github.WhipDevelopment:CrashClaim:f9cd7d92eb'
-    compileOnly 'com.wolfyscript.wolfyutilities:wolfyutilities:1.7.8.1'
+    compileOnly 'com.wolfyscript.wolfyutilities:wolfyutilities:3.16.0.0'
     compileOnly 'com.github.decentsoftware-eu:decentholograms:2.1.2'
     compileOnly 'io.lumine.xikage:MythicMobs:4.9.1'
 
@@ -55,6 +54,9 @@ dependencies {
     compileOnly 'com.github.sirblobman.combatlogx:api:11.0.0.0-SNAPSHOT'
     compileOnly 'com.github.sirblobman.combatlogx.expansion:newbie-helper:11.0.0.0-SNAPSHOT'
 
+    // LibsDisguises
+    compileOnly 'LibsDisguises:LibsDisguises:10.0.26'
+
     compileOnly fileTree(dir: '../../lib', include: ['*.jar'])
 }
 

eco-core/core-plugin/src/main/java/com/willfp/eco/internal/spigot/recipes/ShapedRecipeListener.java

@@ -1,339 +0,0 @@
-package com.willfp.eco.internal.spigot.recipes;
-
-import com.willfp.eco.core.EcoPlugin;
-import com.willfp.eco.core.PluginDependent;
-import com.willfp.eco.core.items.Items;
-import com.willfp.eco.core.items.TestableItem;
-import com.willfp.eco.core.recipe.Recipes;
-import com.willfp.eco.core.recipe.parts.MaterialTestableItem;
-import com.willfp.eco.core.recipe.parts.ModifiedTestableItem;
-import com.willfp.eco.core.recipe.parts.TestableStack;
-import com.willfp.eco.core.recipe.recipes.CraftingRecipe;
-import com.willfp.eco.core.recipe.recipes.ShapedCraftingRecipe;
-import org.bukkit.Keyed;
-import org.bukkit.Material;
-import org.bukkit.entity.Player;
-import org.bukkit.event.Event;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.inventory.CraftItemEvent;
-import org.bukkit.event.inventory.PrepareItemCraftEvent;
-import org.bukkit.event.player.PlayerRecipeDiscoverEvent;
-import org.bukkit.inventory.ItemStack;
-import org.bukkit.inventory.ShapedRecipe;
-import org.jetbrains.annotations.NotNull;
-
-public class ShapedRecipeListener extends PluginDependent<EcoPlugin> implements Listener {
-    public ShapedRecipeListener(@NotNull final EcoPlugin plugin) {
-        super(plugin);
-    }
-
-    private void allow(@NotNull final Event event,
-                       @NotNull final CraftingRecipe recipe) {
-        if (event instanceof PrepareItemCraftEvent) {
-            ((PrepareItemCraftEvent) event).getInventory().setResult(recipe.getOutput());
-        }
-
-        if (event instanceof CraftItemEvent) {
-            ((CraftItemEvent) event).getInventory().setResult(recipe.getOutput());
-        }
-    }
-
-    private void deny(@NotNull final Event event) {
-        if (event instanceof PrepareItemCraftEvent) {
-            ((PrepareItemCraftEvent) event).getInventory().setResult(new ItemStack(Material.AIR));
-        }
-
-        if (event instanceof CraftItemEvent) {
-            ((CraftItemEvent) event).getInventory().setResult(new ItemStack(Material.AIR));
-            ((CraftItemEvent) event).setResult(Event.Result.DENY);
-            ((CraftItemEvent) event).setCancelled(true);
-        }
-    }
-
-    @EventHandler
-    public void complexRecipeListener(@NotNull final PrepareItemCraftEvent event) {
-        if (!(event.getRecipe() instanceof ShapedRecipe recipe)) {
-            return;
-        }
-
-        if (!EcoPlugin.getPluginNames().contains(recipe.getKey().getNamespace())) {
-            return;
-        }
-
-        if (!(event.getInventory().getViewers().get(0) instanceof Player player)) {
-            return;
-        }
-
-        ItemStack[] matrix = event.getInventory().getMatrix();
-        CraftingRecipe matched = Recipes.getMatch(matrix);
-
-        if (matched == null) {
-            deny(event);
-            return;
-        }
-
-        if (matched.test(matrix)) {
-            if (matched.getPermission() != null) {
-                if (player.hasPermission(matched.getPermission())) {
-                    allow(event, matched);
-                } else {
-                    deny(event);
-                }
-            } else {
-                allow(event, matched);
-            }
-        } else {
-            deny(event);
-        }
-    }
-
-    @EventHandler
-    public void complexRecipeListener(@NotNull final CraftItemEvent event) {
-        if (!(event.getRecipe() instanceof ShapedRecipe recipe)) {
-            return;
-        }
-
-        if (!EcoPlugin.getPluginNames().contains(recipe.getKey().getNamespace())) {
-            return;
-        }
-
-        if (!(event.getInventory().getViewers().get(0) instanceof Player player)) {
-            return;
-        }
-
-        ItemStack[] matrix = event.getInventory().getMatrix();
-        CraftingRecipe matched = Recipes.getMatch(matrix);
-
-        if (matched == null) {
-            deny(event);
-            return;
-        }
-
-        if (matched.test(matrix)) {
-            if (matched.getPermission() != null) {
-                if (player.hasPermission(matched.getPermission())) {
-                    allow(event, matched);
-                } else {
-                    deny(event);
-                }
-            } else {
-                allow(event, matched);
-            }
-        } else {
-            deny(event);
-        }
-    }
-
-    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
-    public void stackedRecipeListener(@NotNull final CraftItemEvent event) {
-        if (!(event.getRecipe() instanceof ShapedRecipe recipe)) {
-            return;
-        }
-
-        if (!EcoPlugin.getPluginNames().contains(recipe.getKey().getNamespace())) {
-            return;
-        }
-
-        ItemStack[] matrix = event.getInventory().getMatrix();
-        CraftingRecipe matched = Recipes.getMatch(matrix);
-
-        if (matched == null) {
-            return;
-        }
-
-        boolean isStackedRecipe = false;
-
-        int upperBound = 64;
-        for (int i = 0; i < 9; i++) {
-            ItemStack inMatrix = event.getInventory().getMatrix()[i];
-            TestableItem inRecipe = matched.getParts().get(i);
-
-            if (inRecipe instanceof TestableStack testableStack) {
-                int max = Math.floorDiv(inMatrix.getAmount(), testableStack.getAmount());
-                if (max < upperBound) {
-                    upperBound = max;
-                }
-                isStackedRecipe = true;
-            } else if (inMatrix != null) {
-                int max = inMatrix.getAmount();
-                if (max < upperBound) {
-                    upperBound = max;
-                }
-            }
-        }
-
-        if (!isStackedRecipe) {
-            return;
-        }
-
-        int toGivePerRecipe = event.getRecipe().getResult().getAmount();
-        int maxStackSize = event.getRecipe().getResult().getMaxStackSize();
-        while (toGivePerRecipe * upperBound > maxStackSize) {
-            upperBound--;
-        }
-
-        for (int i = 0; i < 9; i++) {
-            ItemStack inMatrix = event.getInventory().getMatrix()[i];
-            TestableItem inRecipe = matched.getParts().get(i);
-
-            if (inRecipe instanceof TestableStack testableStack) {
-                if (event.isShiftClick()) {
-                    int amount = inMatrix.getAmount() + 1;
-                    for (int j = 0; j < upperBound; j++) {
-                        amount -= testableStack.getAmount();
-                    }
-                    inMatrix.setAmount(amount);
-                } else {
-                    inMatrix.setAmount(inMatrix.getAmount() - (testableStack.getAmount() - 1));
-                }
-            }
-        }
-
-        int finalUpperBound = upperBound;
-
-        if (event.isShiftClick()) {
-            ItemStack result = event.getInventory().getResult();
-            if (result == null) {
-                return;
-            }
-
-            result.setAmount(result.getAmount() * finalUpperBound);
-            event.getInventory().setResult(result);
-        }
-    }
-
-    @EventHandler
-    public void preventUsingComplexPartInEcoRecipe(@NotNull final PrepareItemCraftEvent event) {
-        if (!(event.getRecipe() instanceof ShapedRecipe recipe)) {
-            return;
-        }
-
-        CraftingRecipe craftingRecipe = Recipes.getRecipe(recipe.getKey());
-
-        if (!(craftingRecipe instanceof ShapedCraftingRecipe shapedCraftingRecipe)) {
-            return;
-        }
-
-        for (int i = 0; i < 9; i++) {
-            ItemStack itemStack = event.getInventory().getMatrix()[i];
-            TestableItem part = shapedCraftingRecipe.getParts().get(i);
-            if (part instanceof MaterialTestableItem) {
-                if (Items.isCustomItem(itemStack)) {
-                    event.getInventory().setResult(new ItemStack(Material.AIR));
-                    return;
-                }
-            }
-            if (part instanceof ModifiedTestableItem modified) {
-                if (modified.getHandle() instanceof MaterialTestableItem) {
-                    if (Items.isCustomItem(itemStack)) {
-                        event.getInventory().setResult(new ItemStack(Material.AIR));
-                        return;
-                    }
-                }
-            }
-            if (part instanceof TestableStack modified) {
-                if (modified.getHandle() instanceof MaterialTestableItem) {
-                    if (Items.isCustomItem(itemStack)) {
-                        event.getInventory().setResult(new ItemStack(Material.AIR));
-                        return;
-                    }
-                }
-            }
-        }
-    }
-
-    @EventHandler
-    public void preventUsingComplexPartInEcoRecipe(@NotNull final CraftItemEvent event) {
-        if (!(event.getRecipe() instanceof ShapedRecipe recipe)) {
-            return;
-        }
-
-        CraftingRecipe craftingRecipe = Recipes.getRecipe(recipe.getKey());
-
-        if (!(craftingRecipe instanceof ShapedCraftingRecipe shapedCraftingRecipe)) {
-            return;
-        }
-
-        for (int i = 0; i < 9; i++) {
-            ItemStack itemStack = event.getInventory().getMatrix()[i];
-            TestableItem part = shapedCraftingRecipe.getParts().get(i);
-            if (part instanceof MaterialTestableItem) {
-                if (Items.isCustomItem(itemStack)) {
-                    event.getInventory().setResult(new ItemStack(Material.AIR));
-                    event.setResult(Event.Result.DENY);
-                    event.setCancelled(true);
-                    return;
-                }
-            }
-            if (part instanceof ModifiedTestableItem modified) {
-                if (modified.getHandle() instanceof MaterialTestableItem) {
-                    if (Items.isCustomItem(itemStack)) {
-                        event.getInventory().setResult(new ItemStack(Material.AIR));
-                        event.setResult(Event.Result.DENY);
-                        event.setCancelled(true);
-                        return;
-                    }
-                }
-            }
-            if (part instanceof TestableStack modified) {
-                if (modified.getHandle() instanceof MaterialTestableItem) {
-                    if (Items.isCustomItem(itemStack)) {
-                        event.getInventory().setResult(new ItemStack(Material.AIR));
-                        return;
-                    }
-                }
-            }
-        }
-    }
-
-    @EventHandler
-    public void preventUsingComplexPartInVanillaRecipe(@NotNull final PrepareItemCraftEvent event) {
-        if (!(event.getRecipe() instanceof Keyed recipe)) {
-            return;
-        }
-
-        if (EcoPlugin.getPluginNames().contains(recipe.getKey().getNamespace())) {
-            return;
-        }
-
-        for (ItemStack itemStack : event.getInventory().getMatrix()) {
-            if (Items.isCustomItem(itemStack)) {
-                event.getInventory().setResult(new ItemStack(Material.AIR));
-                return;
-            }
-        }
-    }
-
-    @EventHandler
-    public void preventUsingComplexPartInVanillaRecipe(@NotNull final CraftItemEvent event) {
-        if (!(event.getRecipe() instanceof Keyed recipe)) {
-            return;
-        }
-
-        if (EcoPlugin.getPluginNames().contains(recipe.getKey().getNamespace())) {
-            return;
-        }
-
-        for (ItemStack itemStack : event.getInventory().getMatrix()) {
-            if (Items.isCustomItem(itemStack)) {
-                event.getInventory().setResult(new ItemStack(Material.AIR));
-                event.setResult(Event.Result.DENY);
-                event.setCancelled(true);
-                return;
-            }
-        }
-    }
-
-    @EventHandler
-    public void preventLearningDisplayedRecipes(@NotNull final PlayerRecipeDiscoverEvent event) {
-        if (!EcoPlugin.getPluginNames().contains(event.getRecipe().getNamespace())) {
-            return;
-        }
-
-        if (event.getRecipe().getKey().contains("_displayed")) {
-            event.setCancelled(true);
-        }
-    }
-}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/EcoHandler.kt

@@ -14,6 +14,9 @@ import com.willfp.eco.internal.extensions.EcoExtensionLoader
 import com.willfp.eco.internal.factory.EcoMetadataValueFactory
 import com.willfp.eco.internal.factory.EcoNamespacedKeyFactory
 import com.willfp.eco.internal.factory.EcoRunnableFactory
+import com.willfp.eco.internal.fast.FastInternalNamespacedKeyFactory
+import com.willfp.eco.internal.fast.InternalNamespacedKeyFactory
+import com.willfp.eco.internal.fast.SafeInternalNamespacedKeyFactory
 import com.willfp.eco.internal.gui.EcoGUIFactory
 import com.willfp.eco.internal.integrations.PlaceholderIntegrationPAPI
 import com.willfp.eco.internal.logging.EcoLogger
@@ -21,7 +24,7 @@ import com.willfp.eco.internal.proxy.EcoProxyFactory
 import com.willfp.eco.internal.requirement.EcoRequirementFactory
 import com.willfp.eco.internal.scheduling.EcoScheduler
 import com.willfp.eco.internal.spigot.data.EcoKeyRegistry
-import com.willfp.eco.internal.spigot.data.EcoPlayerProfileHandler
+import com.willfp.eco.internal.spigot.data.EcoProfileHandler
 import com.willfp.eco.internal.spigot.data.storage.MySQLDataHandler
 import com.willfp.eco.internal.spigot.data.storage.YamlDataHandler
 import com.willfp.eco.internal.spigot.integrations.bstats.MetricHandler
@@ -29,6 +32,7 @@ import com.willfp.eco.internal.spigot.proxy.DummyEntityProxy
 import com.willfp.eco.internal.spigot.proxy.FastItemStackFactoryProxy
 import net.kyori.adventure.platform.bukkit.BukkitAudiences
 import org.bukkit.Location
+import org.bukkit.NamespacedKey
 import org.bukkit.entity.Entity
 import org.bukkit.inventory.ItemStack
 import java.util.logging.Logger
@@ -39,11 +43,16 @@ class EcoHandler : EcoSpigotPlugin(), Handler {
     private val requirementFactory = EcoRequirementFactory()
     private var adventure: BukkitAudiences? = null
     private val keyRegistry = EcoKeyRegistry(this)
-    private val playerProfileHandler = EcoPlayerProfileHandler(
+    private val playerProfileHandler = EcoProfileHandler(
         if (this.configYml.getBool("mysql.enabled"))
             MySQLDataHandler(this) else YamlDataHandler(this)
     )
 
+    @Suppress("RedundantNullableReturnType")
+    private val keyFactory: InternalNamespacedKeyFactory? =
+        if (this.configYml.getBool("use-safer-namespacedkey-creation"))
+            SafeInternalNamespacedKeyFactory() else FastInternalNamespacedKeyFactory()
+
     override fun createScheduler(plugin: EcoPlugin): EcoScheduler {
         return EcoScheduler(plugin)
     }
@@ -136,7 +145,7 @@ class EcoHandler : EcoSpigotPlugin(), Handler {
         return keyRegistry
     }
 
-    override fun getPlayerProfileHandler(): EcoPlayerProfileHandler {
+    override fun getProfileHandler(): EcoProfileHandler {
         return playerProfileHandler
     }
 
@@ -147,4 +156,9 @@ class EcoHandler : EcoSpigotPlugin(), Handler {
     override fun createDummyEntity(location: Location): Entity {
         return getProxy(DummyEntityProxy::class.java).createDummyEntity(location)
     }
+
+    override fun createNamespacedKey(namespace: String, key: String): NamespacedKey {
+        @Suppress("DEPRECATION")
+        return keyFactory?.create(namespace, key) ?: NamespacedKey(namespace, key)
+    }
 }

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/EcoSpigotPlugin.kt

@@ -33,6 +33,7 @@ import com.willfp.eco.internal.entities.EntityArgParserKnockback
 import com.willfp.eco.internal.entities.EntityArgParserKnockbackResistance
 import com.willfp.eco.internal.entities.EntityArgParserName
 import com.willfp.eco.internal.entities.EntityArgParserNoAI
+import com.willfp.eco.internal.entities.EntityArgParserSilent
 import com.willfp.eco.internal.entities.EntityArgParserSize
 import com.willfp.eco.internal.entities.EntityArgParserSpawnReinforcements
 import com.willfp.eco.internal.entities.EntityArgParserSpeed
@@ -74,12 +75,14 @@ import com.willfp.eco.internal.spigot.integrations.anticheat.AnticheatVulcan
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefBentoBox
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefCombatLogXV10
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefCombatLogXV11
+import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefCrashClaim
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefDeluxeCombat
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefFactionsUUID
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefGriefPrevention
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefIridiumSkyblock
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefKingdoms
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefLands
+import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefRPGHorses
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefSuperiorSkyblock2
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefTowny
 import com.willfp.eco.internal.spigot.integrations.antigrief.AntigriefWorldGuard
@@ -89,6 +92,7 @@ import com.willfp.eco.internal.spigot.integrations.customitems.CustomItemsExecut
 import com.willfp.eco.internal.spigot.integrations.customitems.CustomItemsHeadDatabase
 import com.willfp.eco.internal.spigot.integrations.customitems.CustomItemsItemsAdder
 import com.willfp.eco.internal.spigot.integrations.customitems.CustomItemsOraxen
+import com.willfp.eco.internal.spigot.integrations.customrecipes.CustomRecipeCustomCrafting
 import com.willfp.eco.internal.spigot.integrations.economy.EconomyVault
 import com.willfp.eco.internal.spigot.integrations.hologram.HologramCMI
 import com.willfp.eco.internal.spigot.integrations.hologram.HologramDecentHolograms
@@ -102,6 +106,9 @@ import com.willfp.eco.internal.spigot.proxy.FastItemStackFactoryProxy
 import com.willfp.eco.internal.spigot.proxy.SkullProxy
 import com.willfp.eco.internal.spigot.proxy.TPSProxy
 import com.willfp.eco.internal.spigot.recipes.ShapedRecipeListener
+import com.willfp.eco.internal.spigot.recipes.listeners.ComplexInComplex
+import com.willfp.eco.internal.spigot.recipes.listeners.ComplexInEco
+import com.willfp.eco.internal.spigot.recipes.listeners.ComplexInVanilla
 import com.willfp.eco.util.BlockUtils
 import com.willfp.eco.util.NumberUtils
 import com.willfp.eco.util.ServerUtils
@@ -145,6 +152,11 @@ abstract class EcoSpigotPlugin : EcoPlugin(
         Entities.registerArgParser(EntityArgParserAdult())
         Entities.registerArgParser(EntityArgParserCharged())
         Entities.registerArgParser(EntityArgParserExplosionRadius())
+        Entities.registerArgParser(EntityArgParserSilent())
+
+        ShapedRecipeListener.registerListener(ComplexInComplex())
+        ShapedRecipeListener.registerListener(ComplexInEco())
+        ShapedRecipeListener.registerListener(ComplexInVanilla())
 
         val skullProxy = getProxy(SkullProxy::class.java)
         SkullUtils.initialize(
@@ -183,7 +195,7 @@ abstract class EcoSpigotPlugin : EcoPlugin(
     override fun handleDisable() {
         this.logger.info("Saving player data...")
         val start = System.currentTimeMillis()
-        Eco.getHandler().playerProfileHandler.save()
+        Eco.getHandler().profileHandler.save()
         this.logger.info("Saved player data! Took ${System.currentTimeMillis() - start}ms")
         Eco.getHandler().adventure?.close()
     }
@@ -192,11 +204,6 @@ abstract class EcoSpigotPlugin : EcoPlugin(
         CollatedRunnable(this)
         DropManager.update(this)
         ProfileSaver(this)
-        this.scheduler.runTimer(
-            { Items.clearCache() },
-            this.configYml.getInt("item-cache-ttl").toLong(),
-            this.configYml.getInt("item-cache-ttl").toLong()
-        )
         this.scheduler.runTimer(
             { clearFrames() },
             this.configYml.getInt("display-frame-ttl").toLong(),
@@ -223,7 +230,8 @@ abstract class EcoSpigotPlugin : EcoPlugin(
             IntegrationLoader("Towny") { AntigriefManager.register(AntigriefTowny()) },
             IntegrationLoader("Lands") { AntigriefManager.register(AntigriefLands(this)) },
             IntegrationLoader("Kingdoms") { AntigriefManager.register(AntigriefKingdoms()) },
-            //IntegrationLoader("CrashClaim") { AntigriefManager.register(AntigriefCrashClaim()) },
+            IntegrationLoader("RPGHorses") { AntigriefManager.register(AntigriefRPGHorses()) },
+            IntegrationLoader("CrashClaim") { AntigriefManager.register(AntigriefCrashClaim()) },
             IntegrationLoader("CombatLogX") {
                 val pluginManager = Bukkit.getPluginManager()
                 val combatLogXPlugin = pluginManager.getPlugin("CombatLogX") ?: return@IntegrationLoader
@@ -252,7 +260,11 @@ abstract class EcoSpigotPlugin : EcoPlugin(
             IntegrationLoader("ItemsAdder") { CustomItemsManager.register(CustomItemsItemsAdder()) },
             IntegrationLoader("HeadDatabase") { CustomItemsManager.register(CustomItemsHeadDatabase(this)) },
             IntegrationLoader("ExecutableItems") { CustomItemsManager.register(CustomItemsExecutableItems()) },
-            IntegrationLoader("CustomCrafting") { CustomItemsManager.register(CustomItemsCustomCrafting()) },
+            IntegrationLoader("CustomCrafting") {
+                CustomItemsManager.register(CustomItemsCustomCrafting()); ShapedRecipeListener.registerValidator(
+                CustomRecipeCustomCrafting()
+            )
+            },
 
             // Shop
             IntegrationLoader("ShopGUIPlus") { ShopManager.register(ShopShopGuiPlus()) },
@@ -302,7 +314,7 @@ abstract class EcoSpigotPlugin : EcoPlugin(
             NaturalExpGainListeners(),
             ArmorListener(),
             EntityDeathByEntityListeners(this),
-            ShapedRecipeListener(this),
+            ShapedRecipeListener(),
             GUIListener(this),
             ArrowDataListener(this),
             ArmorChangeEventListeners(this),

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/data/DataListener.kt

@@ -15,7 +15,7 @@ class DataListener(
 ) : Listener {
     @EventHandler(priority = EventPriority.HIGHEST)
     fun onLeave(event: PlayerQuitEvent) {
-        Eco.getHandler().playerProfileHandler.unloadPlayer(event.player.uniqueId)
+        Eco.getHandler().profileHandler.unloadPlayer(event.player.uniqueId)
     }
 
     @EventHandler
@@ -27,6 +27,6 @@ class DataListener(
 
     @EventHandler(priority = EventPriority.LOWEST)
     fun onLogin(event: PlayerLoginEvent) {
-        Eco.getHandler().playerProfileHandler.unloadPlayer(event.player.uniqueId)
+        Eco.getHandler().profileHandler.unloadPlayer(event.player.uniqueId)
     }
 }

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/data/EcoKeyRegistry.kt

@@ -21,7 +21,7 @@ class EcoKeyRegistry(
 
         this.registry[key.key] = key
 
-        (Eco.getHandler().playerProfileHandler as EcoPlayerProfileHandler).updateKeys()
+        (Eco.getHandler().profileHandler as EcoProfileHandler).updateKeys()
     }
 
     override fun getRegisteredKeys(): MutableSet<PersistentDataKey<*>> {

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/data/EcoProfile.kt

@@ -6,7 +6,7 @@ import com.willfp.eco.internal.spigot.data.storage.DataHandler
 import java.util.UUID
 import java.util.concurrent.ConcurrentHashMap
 
-class EcoPlayerProfile(
+abstract class EcoProfile(
     val data: MutableMap<PersistentDataKey<*>, Any>,
     val uuid: UUID,
     private val handler: DataHandler
@@ -30,22 +30,37 @@ class EcoPlayerProfile(
     }
 
     override fun equals(other: Any?): Boolean {
-        if (other !is EcoPlayerProfile) {
+        if (other !is EcoProfile) {
             return false
         }
 
-        return this.data == other.data
+        return this.data == other.data && this.uuid == other.uuid
     }
 
     override fun hashCode(): Int {
-        return data.hashCode()
-    }
-
-    override fun toString(): String {
-        return "EcoPlayerProfile{$data}"
+        return this.data.hashCode()
     }
 
     companion object {
         val CHANGE_MAP: MutableMap<UUID, MutableSet<PersistentDataKey<*>>> = ConcurrentHashMap()
     }
+}
+
+class EcoPlayerProfile(
+    data: MutableMap<PersistentDataKey<*>, Any>,
+    uuid: UUID,
+    handler: DataHandler
+) : EcoProfile(data, uuid, handler) {
+    override fun toString(): String {
+        return "EcoPlayerProfile{uuid=$uuid}"
+    }
+}
+
+class EcoServerProfile(
+    data: MutableMap<PersistentDataKey<*>, Any>,
+    handler: DataHandler
+) : EcoProfile(data, serverProfileUUID, handler) {
+    override fun toString(): String {
+        return "EcoServerProfile"
+    }
 }

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/data/EcoProfileHandler.kt

@@ -1,17 +1,21 @@
 package com.willfp.eco.internal.spigot.data
 
 import com.willfp.eco.core.data.PlayerProfile
-import com.willfp.eco.core.data.PlayerProfileHandler
+import com.willfp.eco.core.data.Profile
+import com.willfp.eco.core.data.ProfileHandler
+import com.willfp.eco.core.data.ServerProfile
 import com.willfp.eco.core.data.keys.PersistentDataKey
 import com.willfp.eco.internal.spigot.data.storage.DataHandler
 import java.util.UUID
 
-class EcoPlayerProfileHandler(
-    private val handler: DataHandler
-) : PlayerProfileHandler {
-    private val loaded = mutableMapOf<UUID, PlayerProfile>()
+val serverProfileUUID = UUID(0, 0)
 
-    override fun load(uuid: UUID): PlayerProfile {
+class EcoProfileHandler(
+    private val handler: DataHandler
+) : ProfileHandler {
+    private val loaded = mutableMapOf<UUID, Profile>()
+
+    private fun loadGenericProfile(uuid: UUID): Profile {
         val found = loaded[uuid]
         if (found != null) {
             return found
@@ -19,12 +23,22 @@ class EcoPlayerProfileHandler(
 
         val data = mutableMapOf<PersistentDataKey<*>, Any>()
 
-        val profile = EcoPlayerProfile(data, uuid, handler)
+        val profile = if (uuid == serverProfileUUID)
+            EcoServerProfile(data, handler) else EcoPlayerProfile(data, uuid, handler)
+
         loaded[uuid] = profile
         return profile
     }
 
-    override fun saveKeysForPlayer(uuid: UUID, keys: Set<PersistentDataKey<*>>) {
+    override fun load(uuid: UUID): PlayerProfile {
+        return loadGenericProfile(uuid) as PlayerProfile
+    }
+
+    override fun loadServerProfile(): ServerProfile {
+        return loadGenericProfile(serverProfileUUID) as ServerProfile
+    }
+
+    override fun saveKeysFor(uuid: UUID, keys: Set<PersistentDataKey<*>>) {
         val profile = PlayerProfile.load(uuid)
 
         for (key in keys) {

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/data/storage/ProfileSaver.kt

@@ -2,15 +2,15 @@ package com.willfp.eco.internal.spigot.data.storage
 
 import com.willfp.eco.core.Eco
 import com.willfp.eco.core.EcoPlugin
-import com.willfp.eco.internal.spigot.data.EcoPlayerProfile
+import com.willfp.eco.internal.spigot.data.EcoProfile
 
 class ProfileSaver(plugin: EcoPlugin) {
     init {
         plugin.scheduler.runTimer({
-            for ((uuid, set) in EcoPlayerProfile.CHANGE_MAP) {
-                Eco.getHandler().playerProfileHandler.saveKeysForPlayer(uuid, set)
+            for ((uuid, set) in EcoProfile.CHANGE_MAP) {
+                Eco.getHandler().profileHandler.saveKeysFor(uuid, set)
             }
-            EcoPlayerProfile.CHANGE_MAP.clear()
+            EcoProfile.CHANGE_MAP.clear()
         }, 1, 1)
     }
 }

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/display/PacketWindowItems.kt

@@ -6,11 +6,11 @@ import com.comphenix.protocol.events.PacketContainer
 import com.comphenix.protocol.events.PacketEvent
 import com.google.common.util.concurrent.ThreadFactoryBuilder
 import com.willfp.eco.core.AbstractPacketAdapter
+import com.willfp.eco.core.Eco
 import com.willfp.eco.core.EcoPlugin
 import com.willfp.eco.core.display.Display
-import com.willfp.eco.core.fast.FastItemStack
+import com.willfp.eco.core.items.HashedItem
 import com.willfp.eco.internal.spigot.display.frame.DisplayFrame
-import com.willfp.eco.internal.spigot.display.frame.HashedItem
 import com.willfp.eco.internal.spigot.display.frame.lastDisplayFrame
 import com.willfp.eco.util.ServerUtils
 import org.bukkit.entity.Player
@@ -47,17 +47,10 @@ class PacketWindowItems(plugin: EcoPlugin) : AbstractPacketAdapter(plugin, Packe
         handleRateLimit(player)
 
         if (usingAsync(player)) {
+            val newPacket = packet.deepClone()
+
             executor.execute {
-                runCatching {
-                    modifyAndSend(packet.shallowClone(), itemStacks, windowId, player)
-                }.onFailure {
-                    if (this.getPlugin().configYml.getBool("async-display.log-errors")) {
-                        this.getPlugin().logger.warning(
-                            "Error happened in async processing! Disable async display (/plugins/eco/config.yml)" +
-                                    "if this is a frequent issue. (Remember to disable ratelimit and emergency too)"
-                        )
-                    }
-                }
+                runCatchingWithLogs { modifyAndSend(newPacket, itemStacks, windowId, player) }
             }
         } else {
             modifyPacket(packet, itemStacks, windowId, player)
@@ -82,7 +75,7 @@ class PacketWindowItems(plugin: EcoPlugin) : AbstractPacketAdapter(plugin, Packe
         modifyPacket(packet, itemStacks, windowId, player)
         ignorePacketList.add(player.name)
         this.getPlugin().scheduler.run {
-            ProtocolLibrary.getProtocolManager().sendServerPacket(player, packet)
+            runCatchingWithLogs { ProtocolLibrary.getProtocolManager().sendServerPacket(player, packet) }
         }
     }
 
@@ -144,8 +137,7 @@ class PacketWindowItems(plugin: EcoPlugin) : AbstractPacketAdapter(plugin, Packe
             val frameMap = mutableMapOf<Byte, HashedItem>()
 
             for (index in itemStacks.indices) {
-                frameMap[index.toByte()] =
-                    HashedItem(FastItemStack.wrap(itemStacks[index]).hashCode(), itemStacks[index])
+                frameMap[index.toByte()] = HashedItem.of(itemStacks[index])
             }
 
             val newFrame = DisplayFrame(frameMap)
@@ -169,4 +161,15 @@ class PacketWindowItems(plugin: EcoPlugin) : AbstractPacketAdapter(plugin, Packe
 
         return itemStacks
     }
-}
+}
+
+private inline fun <T> runCatchingWithLogs(toRun: () -> T): Result<T> {
+    return runCatching { toRun() }.onFailure {
+        if (Eco.getHandler().ecoPlugin.configYml.getBool("async-display.log-errors")) {
+            Eco.getHandler().ecoPlugin.logger.warning(
+                "Error happened in async processing! Disable async display (/plugins/eco/config.yml)" +
+                        "if this is a frequent issue. (Remember to disable ratelimit and emergency too)"
+            )
+        }
+    }
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/display/frame/DisplayFrame.kt

@@ -1,12 +1,11 @@
 package com.willfp.eco.internal.spigot.display.frame
 
+import com.willfp.eco.core.items.HashedItem
 import org.bukkit.entity.Player
 import org.bukkit.inventory.ItemStack
 import java.util.UUID
 import java.util.concurrent.ConcurrentHashMap
 
-data class HashedItem(val hash: Int, val item: ItemStack)
-
 data class DisplayFrame(val items: Map<Byte, HashedItem>) {
     fun getChangedSlots(newFrame: DisplayFrame): List<Byte> {
         val changes = mutableListOf<Byte>()

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/integrations/antigrief/AntigriefRPGHorses.kt

@@ -0,0 +1,47 @@
+package com.willfp.eco.internal.spigot.integrations.antigrief
+
+import com.willfp.eco.core.integrations.antigrief.AntigriefWrapper
+import org.bukkit.Location
+import org.bukkit.block.Block
+import org.bukkit.entity.LivingEntity
+import org.bukkit.entity.Player
+import org.plugins.rpghorses.RPGHorsesMain
+
+class AntigriefRPGHorses : AntigriefWrapper {
+    override fun canBreakBlock(
+        player: Player,
+        block: Block
+    ): Boolean {
+        return true
+    }
+
+    override fun canCreateExplosion(
+        player: Player,
+        location: Location
+    ): Boolean {
+        return true
+    }
+
+    override fun canPlaceBlock(
+        player: Player,
+        block: Block
+    ): Boolean {
+        return true
+    }
+
+    override fun canInjure(
+        player: Player,
+        victim: LivingEntity
+    ): Boolean {
+        val horse = RPGHorsesMain.getInstance().rpgHorseManager.getRPGHorse(victim)?: return true
+        return horse.horseOwner.uuid.equals(player.uniqueId)
+    }
+
+    override fun canPickupItem(player: Player, location: Location): Boolean {
+        return true
+    }
+
+    override fun getPluginName(): String {
+        return "RPGHorses"
+    }
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/integrations/antigrief/AntigriefWorldGuard.kt

@@ -24,7 +24,7 @@ class AntigriefWorldGuard : AntigriefWrapper {
         val localPlayer: LocalPlayer = WorldGuardPlugin.inst().wrapPlayer(player)
         val container: RegionContainer = WorldGuard.getInstance().platform.regionContainer
         val query: RegionQuery = container.createQuery()
-        return if (!query.testBuild(
+        return if (!query.testState(
                 BukkitAdapter.adapt(block.location),
                 localPlayer,
                 Flags.BLOCK_BREAK
@@ -46,7 +46,7 @@ class AntigriefWorldGuard : AntigriefWrapper {
         val query: RegionQuery = container.createQuery()
         val world = location.world
         Validate.notNull(world, "World cannot be null!")
-        return if (!query.testBuild(BukkitAdapter.adapt(location), localPlayer, Flags.TNT)) {
+        return if (!query.testState(BukkitAdapter.adapt(location), localPlayer, Flags.TNT)) {
             WorldGuard.getInstance().platform.sessionManager.hasBypass(
                 localPlayer,
                 BukkitAdapter.adapt(world)
@@ -61,7 +61,7 @@ class AntigriefWorldGuard : AntigriefWrapper {
         val localPlayer: LocalPlayer = WorldGuardPlugin.inst().wrapPlayer(player)
         val container: RegionContainer = WorldGuard.getInstance().platform.regionContainer
         val query: RegionQuery = container.createQuery()
-        return if (!query.testBuild(
+        return if (!query.testState(
                 BukkitAdapter.adapt(block.location),
                 localPlayer,
                 Flags.BLOCK_PLACE
@@ -88,7 +88,7 @@ class AntigriefWorldGuard : AntigriefWrapper {
             else -> return true
         }
 
-        return if (!query.testBuild(BukkitAdapter.adapt(victim.location), localPlayer, flag)) {
+        return if (!query.testState(BukkitAdapter.adapt(victim.location), localPlayer, flag)) {
             WorldGuard.getInstance().platform.sessionManager.hasBypass(
                 localPlayer,
                 BukkitAdapter.adapt(player.world)
@@ -104,7 +104,7 @@ class AntigriefWorldGuard : AntigriefWrapper {
         val query: RegionQuery = container.createQuery()
         val world = location.world
         Validate.notNull(world, "World cannot be null!")
-        return if (!query.testBuild(BukkitAdapter.adapt(location), localPlayer, Flags.ITEM_PICKUP)) {
+        return if (!query.testState(BukkitAdapter.adapt(location), localPlayer, Flags.ITEM_PICKUP)) {
             WorldGuard.getInstance().platform.sessionManager.hasBypass(
                 localPlayer,
                 BukkitAdapter.adapt(world)
@@ -127,4 +127,4 @@ class AntigriefWorldGuard : AntigriefWrapper {
     override fun hashCode(): Int {
         return this.pluginName.hashCode()
     }
-}
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/integrations/customitems/CustomItemsCustomCrafting.kt

@@ -1,3 +1,5 @@
+@file:Suppress("DEPRECATION")
+
 package com.willfp.eco.internal.spigot.integrations.customitems
 
 import com.willfp.eco.core.integrations.customitems.CustomItemsWrapper
@@ -10,13 +12,16 @@ import me.wolfyscript.utilities.util.NamespacedKey
 import me.wolfyscript.utilities.util.Registry
 import org.bukkit.inventory.ItemStack
 import java.util.function.Predicate
-class CustomItemsCustomCrafting: CustomItemsWrapper {
+
+class CustomItemsCustomCrafting : CustomItemsWrapper {
     override fun registerAllItems() {
         Items.registerItemProvider(CustomCraftingProvider())
     }
+
     override fun getPluginName(): String {
         return "CustomCrafting"
     }
+
     private class CustomCraftingProvider : ItemProvider("customcrafting") {
         override fun provideForKey(key: String): TestableItem? {
             val nKey = key.replace("customcrafting:", "", ignoreCase = true)
@@ -27,7 +32,9 @@ class CustomItemsCustomCrafting: CustomItemsWrapper {
             return CustomItem(
                 namespacedKey,
                 Predicate { test: ItemStack ->
-                    val customStack = me.wolfyscript.utilities.api.inventory.custom_items.CustomItem.getByItemStack(test) ?: return@Predicate false
+                    val customStack =
+                        me.wolfyscript.utilities.api.inventory.custom_items.CustomItem.getByItemStack(test)
+                            ?: return@Predicate false
                     val iKey = customStack.namespacedKey ?: return@Predicate false
                     iKey.equals(key)
                 },

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/integrations/customrecipes/CustomRecipeCustomCrafting.kt

@@ -0,0 +1,18 @@
+package com.willfp.eco.internal.spigot.integrations.customrecipes
+
+import com.willfp.eco.core.integrations.Integration
+import com.willfp.eco.internal.spigot.recipes.GenericCraftEvent
+import com.willfp.eco.internal.spigot.recipes.RecipeValidator
+import me.wolfyscript.customcrafting.CustomCrafting
+import org.bukkit.entity.Player
+
+class CustomRecipeCustomCrafting : RecipeValidator, Integration {
+    override fun validate(event: GenericCraftEvent): Boolean {
+        val player = event.inventory.viewers.getOrNull(0) as? Player ?: return false
+        return CustomCrafting.inst().craftManager.has(player.uniqueId)
+    }
+
+    override fun getPluginName(): String {
+        return "CustomCrafting"
+    }
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/recipes/CraftingRecipes.kt

@@ -0,0 +1,64 @@
+package com.willfp.eco.internal.spigot.recipes
+
+import com.willfp.eco.core.recipe.recipes.CraftingRecipe
+import org.bukkit.Keyed
+import org.bukkit.Material
+import org.bukkit.event.Event
+import org.bukkit.event.inventory.CraftItemEvent
+import org.bukkit.event.inventory.PrepareItemCraftEvent
+import org.bukkit.inventory.CraftingInventory
+import org.bukkit.inventory.ItemStack
+
+interface RecipeValidator {
+    fun validate(event: GenericCraftEvent): Boolean
+}
+
+interface RecipeListener {
+    fun handle(event: GenericCraftEvent)
+}
+
+interface GenericCraftEvent {
+    val inventory: CraftingInventory
+    val recipe: Keyed
+
+    fun allow(recipe: CraftingRecipe)
+    fun deny()
+}
+
+class WrappedPrepareItemCraftEvent(
+    private val event: PrepareItemCraftEvent
+) : GenericCraftEvent {
+    override val inventory: CraftingInventory
+        get() = event.inventory
+
+    override val recipe: Keyed
+        get() = event.recipe as Keyed
+
+    override fun allow(recipe: CraftingRecipe) {
+        this.inventory.result = recipe.output
+    }
+
+    override fun deny() {
+        this.inventory.result = ItemStack(Material.AIR)
+    }
+}
+
+class WrappedCraftItemEvent(
+    private val event: CraftItemEvent
+) : GenericCraftEvent {
+    override val inventory: CraftingInventory
+        get() = event.inventory
+
+    override val recipe: Keyed
+        get() = event.recipe as Keyed
+
+    override fun allow(recipe: CraftingRecipe) {
+        this.inventory.result = recipe.output
+    }
+
+    override fun deny() {
+        this.inventory.result = ItemStack(Material.AIR)
+        event.result = Event.Result.DENY
+        event.isCancelled = true
+    }
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/recipes/ShapedRecipeListener.kt

@@ -0,0 +1,138 @@
+package com.willfp.eco.internal.spigot.recipes
+
+import com.willfp.eco.core.EcoPlugin
+import com.willfp.eco.core.recipe.Recipes
+import com.willfp.eco.core.recipe.parts.TestableStack
+import org.bukkit.Keyed
+import org.bukkit.event.EventHandler
+import org.bukkit.event.EventPriority
+import org.bukkit.event.Listener
+import org.bukkit.event.inventory.CraftItemEvent
+import org.bukkit.event.inventory.PrepareItemCraftEvent
+import org.bukkit.event.player.PlayerRecipeDiscoverEvent
+import org.bukkit.inventory.ShapedRecipe
+
+class ShapedRecipeListener : Listener {
+    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
+    fun stackedRecipeListener(event: CraftItemEvent) {
+        val recipe = event.recipe as? ShapedRecipe ?: return
+
+        if (!EcoPlugin.getPluginNames().contains(recipe.key.namespace)) {
+            return
+        }
+
+        val matrix = event.inventory.matrix
+
+        val wrapped = WrappedCraftItemEvent(event)
+
+        if (validators.any { it.validate(wrapped) }) {
+            return
+        }
+
+        val matched = Recipes.getMatch(matrix)
+
+        if (matched == null) {
+            wrapped.deny()
+            return
+        }
+
+        var isStackedRecipe = false
+        var upperBound = 64
+        for (i in 0..8) {
+            val inMatrix = event.inventory.matrix.getOrNull(i)
+            val inRecipe = matched.parts[i]
+
+            if (inRecipe is TestableStack) {
+                val max = Math.floorDiv(inMatrix!!.amount, inRecipe.amount)
+                if (max < upperBound) {
+                    upperBound = max
+                }
+                isStackedRecipe = true
+            } else if (inMatrix != null) {
+                val max = inMatrix.amount
+                if (max < upperBound) {
+                    upperBound = max
+                }
+            }
+        }
+
+        if (!isStackedRecipe) {
+            return
+        }
+
+        val toGivePerRecipe = event.recipe.result.amount
+        val maxStackSize = event.recipe.result.maxStackSize
+        while (toGivePerRecipe * upperBound > maxStackSize) {
+            upperBound--
+        }
+
+        for (i in 0..8) {
+            val inMatrix = event.inventory.matrix[i]
+            val inRecipe = matched.parts[i]
+
+            if (inRecipe is TestableStack) {
+                if (event.isShiftClick) {
+                    var amount = inMatrix.amount + 1
+                    for (j in 0..upperBound) {
+                        amount -= inRecipe.amount
+                    }
+                    inMatrix.amount = amount
+                } else {
+                    inMatrix.amount = inMatrix.amount - (inRecipe.amount - 1)
+                }
+            }
+        }
+
+        if (event.isShiftClick) {
+            val result = event.inventory.result ?: return
+
+            result.amount = result.amount * upperBound
+            event.inventory.result = result
+        }
+    }
+
+    @EventHandler
+    fun preventLearningDisplayedRecipes(event: PlayerRecipeDiscoverEvent) {
+        if (!EcoPlugin.getPluginNames().contains(event.recipe.namespace)) {
+            return
+        }
+        if (event.recipe.key.contains("_displayed")) {
+            event.isCancelled = true
+        }
+    }
+
+    @EventHandler
+    fun processListeners(event: PrepareItemCraftEvent) {
+        if (event.recipe !is Keyed) {
+            return
+        }
+
+        for (listener in listeners) {
+            listener.handle(WrappedPrepareItemCraftEvent(event))
+        }
+    }
+
+    @EventHandler
+    fun processListeners(event: CraftItemEvent) {
+        if (event.recipe !is Keyed) {
+            return
+        }
+
+        for (listener in listeners) {
+            listener.handle(WrappedCraftItemEvent(event))
+        }
+    }
+
+    companion object {
+        val validators = mutableListOf<RecipeValidator>()
+        private val listeners = mutableListOf<RecipeListener>()
+
+        fun registerValidator(validator: RecipeValidator) {
+            validators.add(validator)
+        }
+
+        fun registerListener(listener: RecipeListener) {
+            listeners.add(listener)
+        }
+    }
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/recipes/listeners/ComplexInComplex.kt

@@ -0,0 +1,47 @@
+package com.willfp.eco.internal.spigot.recipes.listeners
+
+import com.willfp.eco.core.EcoPlugin
+import com.willfp.eco.core.recipe.Recipes
+import com.willfp.eco.internal.spigot.recipes.GenericCraftEvent
+import com.willfp.eco.internal.spigot.recipes.RecipeListener
+import com.willfp.eco.internal.spigot.recipes.ShapedRecipeListener
+import org.bukkit.entity.Player
+
+class ComplexInComplex : RecipeListener {
+    override fun handle(event: GenericCraftEvent) {
+        val recipe = event.recipe
+
+        if (!EcoPlugin.getPluginNames().contains(recipe.key.namespace)) {
+            return
+        }
+
+        val player = event.inventory.viewers.getOrNull(0) as? Player ?: return
+
+        val matrix = event.inventory.matrix
+
+        if (ShapedRecipeListener.validators.any { it.validate(event) }) {
+            return
+        }
+
+        val matched = Recipes.getMatch(matrix)
+
+        if (matched == null) {
+            event.deny()
+            return
+        }
+
+        if (matched.test(matrix)) {
+            if (matched.permission != null) {
+                if (player.hasPermission(matched.permission!!)) {
+                    event.allow(matched)
+                } else {
+                    event.deny()
+                }
+            } else {
+                event.allow(matched)
+            }
+        } else {
+            event.deny()
+        }
+    }
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/recipes/listeners/ComplexInEco.kt

@@ -0,0 +1,51 @@
+package com.willfp.eco.internal.spigot.recipes.listeners
+
+import com.willfp.eco.core.items.Items
+import com.willfp.eco.core.recipe.Recipes
+import com.willfp.eco.core.recipe.parts.MaterialTestableItem
+import com.willfp.eco.core.recipe.parts.ModifiedTestableItem
+import com.willfp.eco.core.recipe.parts.TestableStack
+import com.willfp.eco.core.recipe.recipes.ShapedCraftingRecipe
+import com.willfp.eco.internal.spigot.recipes.GenericCraftEvent
+import com.willfp.eco.internal.spigot.recipes.RecipeListener
+import com.willfp.eco.internal.spigot.recipes.ShapedRecipeListener
+
+class ComplexInEco : RecipeListener {
+    override fun handle(event: GenericCraftEvent) {
+        val craftingRecipe = Recipes.getRecipe(event.recipe.key)
+
+        if (craftingRecipe !is ShapedCraftingRecipe) {
+            return
+        }
+
+        if (ShapedRecipeListener.validators.any { it.validate(event) }) {
+            return
+        }
+
+        for (i in 0..8) {
+            val itemStack = event.inventory.matrix[i]
+            val part = craftingRecipe.parts[i]
+            when (part) {
+                is MaterialTestableItem -> {
+                    if (Items.isCustomItem(itemStack)) {
+                        event.deny()
+                    }
+                }
+                is ModifiedTestableItem -> {
+                    if (part.handle is MaterialTestableItem) {
+                        if (Items.isCustomItem(itemStack)) {
+                            event.deny()
+                        }
+                    }
+                }
+                is TestableStack -> {
+                    if (part.handle is MaterialTestableItem) {
+                        if (Items.isCustomItem(itemStack)) {
+                            event.deny()
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/recipes/listeners/ComplexInVanilla.kt

@@ -0,0 +1,25 @@
+package com.willfp.eco.internal.spigot.recipes.listeners
+
+import com.willfp.eco.core.EcoPlugin
+import com.willfp.eco.core.items.Items
+import com.willfp.eco.internal.spigot.recipes.GenericCraftEvent
+import com.willfp.eco.internal.spigot.recipes.RecipeListener
+import com.willfp.eco.internal.spigot.recipes.ShapedRecipeListener
+
+class ComplexInVanilla : RecipeListener {
+    override fun handle(event: GenericCraftEvent) {
+        if (EcoPlugin.getPluginNames().contains(event.recipe.key.namespace)) {
+            return
+        }
+
+        if (ShapedRecipeListener.validators.any { it.validate(event) }) {
+            return
+        }
+
+        for (itemStack in event.inventory.matrix) {
+            if (Items.isCustomItem(itemStack)) {
+                event.deny()
+            }
+        }
+    }
+}

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

@@ -41,10 +41,12 @@ use-display-frame: true
 # that display frames will be cleared / deleted.
 display-frame-ttl: 17
 
-# Time to live for storing hashes against custom item keys. Increasing this value
-# can benefit performance under load (e.g. from ShopGUI+ sells) but can increase
-# memory use.
-item-cache-ttl: 6000
+# The default bukkit NamespacedKey creation can cause decent amounts of lag under
+# load due to the use of regex validation in the constructor. eco has its own system
+# to create NamespacedKeys, however it can be unsafe as it skips most validation checks.
+# If you encounter any bugs with this, then enable this option - however it will come
+# at a performance penalty.
+use-safer-namespacedkey-creation: false
 
 # Window items packets have the option to be run asynchronously. This may cause
 # some bugs and is considered experimental, however it has been tested without
@@ -69,14 +71,14 @@ async-display:
     # If emergency async should be used.
     enabled: true
     # Below this TPS value, emergency async display will be used.
-    cutoff: 18
+    cutoff: 17
 
   # If players with a large amount of display packets should have their processing
   # done asynchronously. This will help if a player is trying to crash the server
   # by overloading the display system.
   ratelimit:
     # If rate limit async display should be used.
-    enabled: true
+    enabled: false
     # The amount of window items packets per timeframe needed to enable async display
     # for a specified player.
     cutoff: 4

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

@@ -42,6 +42,7 @@ softdepend:
   - MythicMobs
   - CustomCrafting
   - ExecutableItems
+  - RPGHorses
 libraries:
   - 'org.reflections:reflections:0.9.12'
   - 'org.apache.maven:maven-artifact:3.0.3'
@@ -56,4 +57,5 @@ libraries:
   - 'mysql:mysql-connector-java:8.0.25'
   - 'com.google.guava:guava:31.0.1-jre'
   - 'com.zaxxer:HikariCP:5.0.0'
-  - 'org.apache.commons:commons-lang3:3.0'
+  - 'org.objenesis:objenesis:3.2'
+  - 'com.github.ben-manes.caffeine:caffeine:3.0.5'

gradle.properties

@@ -1,3 +1,3 @@
-version = 6.20.2
+version = 6.22.0
 plugin-name = eco
 kotlin.code.style = official