Fix several incompatibilities with 1.14

This commit introduces support for 1.14.0, 1.14.1, 1.14.2 and 1.14.3 with the new inventory-access-r1 and inventory-access-r2 modules. All subsequent revisions have been pushed down by two versions. (ex.: inventory-access-r15 is inventory-access-r17 now)

Other changes include:
- Introduced ItemUtils#setSkullGameProfile inventory-access method
- Removed all usages of fastutil classes, as those are relocated to a different path on older versions and therefore not accessible
- Removed all usages of Material#isAir and ClickType#SWAP_OFFHAND, as those did not exist in 1.14
- invui-core now depends on spigot 1.14 instead of 1.20.2. This should prevent any future issues regarding the usage of methods and properties that have only been introduced later

inventoryaccess/inventory-access-r1/pom.xml

@@ -21,7 +21,7 @@
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot</artifactId>
-            <version>1.14.4-R0.1-SNAPSHOT</version>
+            <version>1.14-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

inventoryaccess/inventory-access-r1/src/main/java/xyz/xenondevs/inventoryaccess/r1/CartographyInventoryImpl.java

@@ -17,7 +17,7 @@ import java.lang.reflect.Field;
 
 class CartographyInventoryImpl extends ContainerCartography implements CartographyInventory {
     
-    private static final Field RESULT_CONTAINER_FIELD = ReflectionUtils.getField(ContainerCartography.class, true, "resultInventory");
+    private static final Field RESULT_CONTAINER_FIELD = ReflectionUtils.getField(ContainerCartography.class, true, "f");
     
     private final InventoryCraftResult resultInventory = ReflectionUtils.getFieldValue(RESULT_CONTAINER_FIELD, this);
     private final IChatBaseComponent title;

inventoryaccess/inventory-access-r1/src/main/java/xyz/xenondevs/inventoryaccess/r1/ItemUtilsImpl.java

@@ -1,5 +1,6 @@
 package xyz.xenondevs.inventoryaccess.r1;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.server.v1_14_R1.ItemStack;
 import net.minecraft.server.v1_14_R1.NBTCompressedStreamTools;
 import net.minecraft.server.v1_14_R1.NBTTagCompound;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Field;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Field CRAFT_META_SKULL_GAME_PROFILE_FIELD = ReflectionUtils.getField(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "profile"
+    );
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.setFieldValue(CRAFT_META_SKULL_GAME_PROFILE_FIELD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r10/pom.xml

@@ -15,7 +15,7 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
-        <spigot.version>1.19-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.18-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>

inventoryaccess/inventory-access-r10/src/main/java/xyz/xenondevs/inventoryaccess/r10/AnvilInventoryImpl.java

@@ -14,11 +14,11 @@ import net.minecraft.world.inventory.AnvilMenu;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_18_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r10/src/main/java/xyz/xenondevs/inventoryaccess/r10/CartographyInventoryImpl.java

@@ -10,11 +10,11 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_18_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r10/src/main/java/xyz/xenondevs/inventoryaccess/r10/InventoryUtilsImpl.java

@@ -7,11 +7,11 @@ import net.minecraft.world.Container;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_18_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_19_R1.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_18_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r10/src/main/java/xyz/xenondevs/inventoryaccess/r10/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r10;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtIo;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r10/src/main/java/xyz/xenondevs/inventoryaccess/r10/PlayerUtilsImpl.java

@@ -8,8 +8,8 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_19_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_18_R1.CraftServer;
-import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

inventoryaccess/inventory-access-r11/pom.xml

@@ -15,7 +15,7 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
-        <spigot.version>1.19.1-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.18.2-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>

inventoryaccess/inventory-access-r11/src/main/java/xyz/xenondevs/inventoryaccess/r11/AnvilInventoryImpl.java

@@ -14,11 +14,11 @@ import net.minecraft.world.inventory.AnvilMenu;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_18_R2.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -186,4 +186,5 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         // empty
     }
     
+    
 }

inventoryaccess/inventory-access-r11/src/main/java/xyz/xenondevs/inventoryaccess/r11/CartographyInventoryImpl.java

@@ -10,11 +10,11 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_18_R2.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r11/src/main/java/xyz/xenondevs/inventoryaccess/r11/InventoryUtilsImpl.java

@@ -7,11 +7,11 @@ import net.minecraft.world.Container;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_18_R2.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_19_R1.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_18_R2.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r11/src/main/java/xyz/xenondevs/inventoryaccess/r11/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r11;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtIo;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r11/src/main/java/xyz/xenondevs/inventoryaccess/r11/PlayerUtilsImpl.java

@@ -8,8 +8,8 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_19_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_18_R2.CraftServer;
-import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

inventoryaccess/inventory-access-r12/pom.xml

@@ -15,7 +15,7 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
-        <spigot.version>1.19.3-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.19-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>

inventoryaccess/inventory-access-r12/src/main/java/xyz/xenondevs/inventoryaccess/r12/AnvilInventoryImpl.java

@@ -14,11 +14,11 @@ import net.minecraft.world.inventory.AnvilMenu;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -186,4 +186,5 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         // empty
     }
     
+    
 }

inventoryaccess/inventory-access-r12/src/main/java/xyz/xenondevs/inventoryaccess/r12/CartographyInventoryImpl.java

@@ -10,11 +10,11 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r12/src/main/java/xyz/xenondevs/inventoryaccess/r12/InventoryUtilsImpl.java

@@ -7,11 +7,11 @@ import net.minecraft.world.Container;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_19_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_19_R2.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_19_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r12/src/main/java/xyz/xenondevs/inventoryaccess/r12/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r12;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtIo;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r12/src/main/java/xyz/xenondevs/inventoryaccess/r12/PlayerUtilsImpl.java

@@ -8,8 +8,8 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_19_R2.CraftServer;
+import org.bukkit.craftbukkit.v1_19_R1.CraftServer;
-import org.bukkit.craftbukkit.v1_19_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

inventoryaccess/inventory-access-r13/pom.xml

@@ -15,7 +15,7 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
-        <spigot.version>1.19.4-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.19.1-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>

inventoryaccess/inventory-access-r13/src/main/java/xyz/xenondevs/inventoryaccess/r13/AnvilInventoryImpl.java

@@ -14,11 +14,11 @@ import net.minecraft.world.inventory.AnvilMenu;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R3.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r13/src/main/java/xyz/xenondevs/inventoryaccess/r13/CartographyInventoryImpl.java

@@ -10,11 +10,11 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R3.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r13/src/main/java/xyz/xenondevs/inventoryaccess/r13/InventoryUtilsImpl.java

@@ -7,11 +7,11 @@ import net.minecraft.world.Container;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_19_R3.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_19_R3.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_19_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r13/src/main/java/xyz/xenondevs/inventoryaccess/r13/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r13;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtIo;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r13/src/main/java/xyz/xenondevs/inventoryaccess/r13/PlayerUtilsImpl.java

@@ -8,8 +8,8 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_19_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_19_R1.CraftServer;
-import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -92,7 +92,7 @@ class PlayerUtilsImpl implements PlayerUtils {
             force,
             InventoryUtilsImpl.createNMSComponent(prompt)
         );
-        serverPlayer.connection.send(packet);
+        serverPlayer.connection.connection.send(packet);
     }
     
 }

inventoryaccess/inventory-access-r14/pom.xml

@@ -15,7 +15,7 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
-        <spigot.version>1.20-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.19.3-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>

inventoryaccess/inventory-access-r14/src/main/java/xyz/xenondevs/inventoryaccess/r14/AnvilInventoryImpl.java

@@ -14,11 +14,11 @@ import net.minecraft.world.inventory.AnvilMenu;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R2.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R2.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -30,6 +30,7 @@ import java.util.function.Consumer;
 
 class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
     
+    private final Component title;
     private final List<Consumer<String>> renameHandlers;
     private final CraftInventoryView view;
     private final ServerPlayer player;
@@ -43,9 +44,9 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
     
     public AnvilInventoryImpl(ServerPlayer player, Component title, List<Consumer<String>> renameHandlers) {
         super(player.nextContainerCounter(), player.getInventory(),
-            ContainerLevelAccess.create(player.level(), new BlockPos(0, 0, 0)));
+            ContainerLevelAccess.create(player.level, new BlockPos(0, 0, 0)));
         
-        setTitle(title);
+        this.title = title;
         this.renameHandlers = renameHandlers;
         this.player = player;
         
@@ -64,7 +65,7 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         player.containerMenu = this;
         
         // send open packet
-        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.ANVIL, getTitle()));
+        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.ANVIL, title));
         
         // send initial items
         NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
@@ -141,7 +142,7 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
      * @param s The new rename text
      */
     @Override
-    public boolean setItemName(String s) {
+    public void setItemName(String s) {
         // save rename text
         text = s;
         
@@ -149,10 +150,8 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         if (renameHandlers != null)
             renameHandlers.forEach(handler -> handler.accept(s));
         
-        // the client expects the item to change to its new name and removes it from the inventory, so it needs to be sent again
+        // the client expects the item to change to it's new name and removes it from the inventory, so it needs to be sent again
         sendItem(2);
-        
-        return false;
     }
     
     /**

inventoryaccess/inventory-access-r14/src/main/java/xyz/xenondevs/inventoryaccess/r14/CartographyInventoryImpl.java

@@ -10,17 +10,17 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R2.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R2.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.inventory.CartographyInventory;
 import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
-import net.minecraft.world.entity.player.Player;
 
 import java.lang.reflect.Field;
 
@@ -39,12 +39,12 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     
     private boolean open;
     
-    public CartographyInventoryImpl(org.bukkit.entity.Player player, @NotNull ComponentWrapper title) {
+    public CartographyInventoryImpl(Player player, @NotNull ComponentWrapper title) {
         this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title));
     }
     
     public CartographyInventoryImpl(ServerPlayer player, Component title) {
-        super(player.nextContainerCounter(), player.getInventory(), ContainerLevelAccess.create(player.level(), new BlockPos(0, 0, 0)));
+        super(player.nextContainerCounter(), player.getInventory(), ContainerLevelAccess.create(player.level, new BlockPos(0, 0, 0)));
         
         this.player = player;
         this.title = title;
@@ -115,7 +115,7 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     @Override
-    public ItemStack quickMoveStack(Player player, int i) {
+    public ItemStack quickMoveStack(net.minecraft.world.entity.player.Player entityhuman, int i) {
         return ItemStack.EMPTY;
     }
     
@@ -125,12 +125,12 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     @Override
-    public boolean stillValid(Player player) {
+    public boolean stillValid(net.minecraft.world.entity.player.Player entityhuman) {
         return true;
     }
     
     @Override
-    protected void clearContainer(Player player, Container container) {
+    protected void clearContainer(net.minecraft.world.entity.player.Player entityhuman, Container container) {
         // empty
     }
     

inventoryaccess/inventory-access-r14/src/main/java/xyz/xenondevs/inventoryaccess/r14/InventoryUtilsImpl.java

@@ -7,11 +7,11 @@ import net.minecraft.world.Container;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R2.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R2.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_20_R1.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_19_R2.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r14/src/main/java/xyz/xenondevs/inventoryaccess/r14/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r14;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtIo;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R2.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );  
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r14/src/main/java/xyz/xenondevs/inventoryaccess/r14/PlayerUtilsImpl.java

@@ -8,8 +8,8 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_20_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_19_R2.CraftServer;
-import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R2.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -92,7 +92,7 @@ class PlayerUtilsImpl implements PlayerUtils {
             force,
             InventoryUtilsImpl.createNMSComponent(prompt)
         );
-        serverPlayer.connection.send(packet);
+        serverPlayer.connection.connection.send(packet);
     }
     
 }

inventoryaccess/inventory-access-r15/pom.xml

@@ -15,7 +15,7 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
-        <spigot.version>1.20.2-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.19.4-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>

inventoryaccess/inventory-access-r15/src/main/java/xyz/xenondevs/inventoryaccess/r15/AnvilInventoryImpl.java

@@ -14,11 +14,11 @@ import net.minecraft.world.inventory.AnvilMenu;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_20_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R3.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -30,6 +30,7 @@ import java.util.function.Consumer;
 
 class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
     
+    private final Component title;
     private final List<Consumer<String>> renameHandlers;
     private final CraftInventoryView view;
     private final ServerPlayer player;
@@ -43,9 +44,9 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
     
     public AnvilInventoryImpl(ServerPlayer player, Component title, List<Consumer<String>> renameHandlers) {
         super(player.nextContainerCounter(), player.getInventory(),
-            ContainerLevelAccess.create(player.level(), new BlockPos(0, 0, 0)));
+            ContainerLevelAccess.create(player.level, new BlockPos(0, 0, 0)));
         
-        setTitle(title);
+        this.title = title;
         this.renameHandlers = renameHandlers;
         this.player = player;
         
@@ -64,7 +65,7 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         player.containerMenu = this;
         
         // send open packet
-        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.ANVIL, getTitle()));
+        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.ANVIL, title));
         
         // send initial items
         NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
@@ -141,7 +142,7 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
      * @param s The new rename text
      */
     @Override
-    public boolean setItemName(String s) {
+    public void setItemName(String s) {
         // save rename text
         text = s;
         
@@ -149,10 +150,8 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         if (renameHandlers != null)
             renameHandlers.forEach(handler -> handler.accept(s));
         
-        // the client expects the item to change to its new name and removes it from the inventory, so it needs to be sent again
+        // the client expects the item to change to it's new name and removes it from the inventory, so it needs to be sent again
         sendItem(2);
-        
-        return false;
     }
     
     /**

inventoryaccess/inventory-access-r15/src/main/java/xyz/xenondevs/inventoryaccess/r15/CartographyInventoryImpl.java

@@ -10,17 +10,17 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_20_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R3.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.inventory.CartographyInventory;
 import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
-import net.minecraft.world.entity.player.Player;
 
 import java.lang.reflect.Field;
 
@@ -39,12 +39,12 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     
     private boolean open;
     
-    public CartographyInventoryImpl(org.bukkit.entity.Player player, @NotNull ComponentWrapper title) {
+    public CartographyInventoryImpl(Player player, @NotNull ComponentWrapper title) {
         this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title));
     }
     
     public CartographyInventoryImpl(ServerPlayer player, Component title) {
-        super(player.nextContainerCounter(), player.getInventory(), ContainerLevelAccess.create(player.level(), new BlockPos(0, 0, 0)));
+        super(player.nextContainerCounter(), player.getInventory(), ContainerLevelAccess.create(player.level, new BlockPos(0, 0, 0)));
         
         this.player = player;
         this.title = title;
@@ -115,7 +115,7 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     @Override
-    public ItemStack quickMoveStack(Player player, int i) {
+    public ItemStack quickMoveStack(net.minecraft.world.entity.player.Player entityhuman, int i) {
         return ItemStack.EMPTY;
     }
     
@@ -125,12 +125,12 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     @Override
-    public boolean stillValid(Player player) {
+    public boolean stillValid(net.minecraft.world.entity.player.Player entityhuman) {
         return true;
     }
     
     @Override
-    protected void clearContainer(Player player, Container container) {
+    protected void clearContainer(net.minecraft.world.entity.player.Player entityhuman, Container container) {
         // empty
     }
     

inventoryaccess/inventory-access-r15/src/main/java/xyz/xenondevs/inventoryaccess/r15/InventoryUtilsImpl.java

@@ -7,11 +7,11 @@ import net.minecraft.world.Container;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_20_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_R3.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_20_R2.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_19_R3.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r15/src/main/java/xyz/xenondevs/inventoryaccess/r15/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r15;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtIo;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r15/src/main/java/xyz/xenondevs/inventoryaccess/r15/PlayerUtilsImpl.java

@@ -1,15 +1,15 @@
 package xyz.xenondevs.inventoryaccess.r15;
 
-import net.minecraft.network.protocol.common.ClientboundResourcePackPacket;
 import net.minecraft.network.protocol.game.ClientboundMapItemDataPacket;
+import net.minecraft.network.protocol.game.ClientboundResourcePackPacket;
 import net.minecraft.server.PlayerAdvancements;
 import net.minecraft.server.ServerAdvancementManager;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_20_R2.CraftServer;
+import org.bukkit.craftbukkit.v1_19_R3.CraftServer;
-import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

inventoryaccess/inventory-access-r16/pom.xml

@@ -0,0 +1,139 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <groupId>xyz.xenondevs.invui</groupId>
+        <artifactId>invui-parent</artifactId>
+        <version>1.20</version>
+        <relativePath>../../pom.xml</relativePath>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>inventory-access-r16</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <spigot.version>1.20-R0.1-SNAPSHOT</spigot.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot</artifactId>
+            <version>${spigot.version}</version>
+            <classifier>remapped-mojang</classifier>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>xyz.xenondevs.invui</groupId>
+            <artifactId>inventory-access</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>xyz.xenondevs.string-remapper</groupId>
+                <artifactId>string-remapper-maven-plugin</artifactId>
+                <version>1.2</version>
+
+                <executions>
+                    <execution>
+                        <id>remap-spigot</id>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <configuration>
+                            <spigotVersion>${spigot.version}</spigotVersion>
+                            <goal>spigot</goal>
+                            <classesIn>${project.build.directory}/classes</classesIn>
+                            <classesOut>${project.build.directory}/classes-spigot</classesOut>
+                        </configuration>
+                    </execution>
+
+                    <execution>
+                        <id>remap-mojang</id>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <configuration>
+                            <spigotVersion>${spigot.version}</spigotVersion>
+                            <goal>mojang</goal>
+                            <classesIn>${project.build.directory}/classes</classesIn>
+                            <classesOut>${project.build.directory}/classes-mojang</classesOut>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>3.2.2</version>
+                <executions>
+                    <execution>
+                        <id>default-jar</id>
+                        <phase>none</phase>
+                    </execution>
+                    <execution>
+                        <id>spigot</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                        <configuration>
+                            <classesDirectory>${project.build.directory}/classes-spigot</classesDirectory>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>mojang</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                        <configuration>
+                            <classesDirectory>${project.build.directory}/classes-mojang</classesDirectory>
+                            <classifier>remapped-mojang</classifier>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>net.md-5</groupId>
+                <artifactId>specialsource-maven-plugin</artifactId>
+                <version>1.2.2</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <id>remap-obf</id>
+                        <configuration>
+                            <srgIn>org.spigotmc:minecraft-server:${spigot.version}:txt:maps-mojang</srgIn>
+                            <reverse>true</reverse>
+                            <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-mojang</remappedDependencies>
+                            <remappedArtifactAttached>false</remappedArtifactAttached>
+                            <finalName>${project.artifactId}-${project.version}-remapped-obf</finalName>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <id>remap-spigot</id>
+                        <configuration>
+                            <inputFile>${project.build.directory}/${project.artifactId}-${project.version}-remapped-obf.jar</inputFile>
+                            <srgIn>org.spigotmc:minecraft-server:${spigot.version}:csrg:maps-spigot</srgIn>
+                            <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-obf</remappedDependencies>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

inventoryaccess/inventory-access-r16/src/main/java/xyz/xenondevs/inventoryaccess/r16/AnvilInventoryImpl.java

@@ -0,0 +1,190 @@
+package xyz.xenondevs.inventoryaccess.r16;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.NonNullList;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundContainerSetContentPacket;
+import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.Container;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.AnvilMenu;
+import net.minecraft.world.inventory.ContainerLevelAccess;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.item.ItemStack;
+import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftItemStack;
+import org.bukkit.event.inventory.PrepareAnvilEvent;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import xyz.xenondevs.inventoryaccess.abstraction.inventory.AnvilInventory;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+
+import java.util.List;
+import java.util.function.Consumer;
+
+class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
+    
+    private final List<Consumer<String>> renameHandlers;
+    private final CraftInventoryView view;
+    private final ServerPlayer player;
+    
+    private String text;
+    private boolean open;
+    
+    public AnvilInventoryImpl(org.bukkit.entity.Player player, @NotNull ComponentWrapper title, List<Consumer<String>> renameHandlers) {
+        this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title), renameHandlers);
+    }
+    
+    public AnvilInventoryImpl(ServerPlayer player, Component title, List<Consumer<String>> renameHandlers) {
+        super(player.nextContainerCounter(), player.getInventory(),
+            ContainerLevelAccess.create(player.level(), new BlockPos(0, 0, 0)));
+        
+        setTitle(title);
+        this.renameHandlers = renameHandlers;
+        this.player = player;
+        
+        CraftInventoryAnvil inventory = new CraftInventoryAnvil(access.getLocation(),
+            inputSlots, resultSlots, this);
+        this.view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
+    }
+    
+    public void open() {
+        open = true;
+        
+        // call the InventoryOpenEvent
+        CraftEventFactory.callInventoryOpenEvent(player, this);
+        
+        // set active container
+        player.containerMenu = this;
+        
+        // send open packet
+        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.ANVIL, getTitle()));
+        
+        // send initial items
+        NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
+        player.connection.send(new ClientboundContainerSetContentPacket(getActiveWindowId(player), incrementStateId(), itemsList, ItemStack.EMPTY));
+        
+        // init menu
+        player.initMenu(this);
+    }
+    
+    public void sendItem(int slot) {
+        player.connection.send(new ClientboundContainerSetSlotPacket(getActiveWindowId(player), incrementStateId(), slot, getItem(slot)));
+    }
+    
+    public void setItem(int slot, ItemStack item) {
+        if (slot < 2) inputSlots.setItem(slot, item);
+        else resultSlots.setItem(0, item);
+        
+        if (open) sendItem(slot);
+    }
+    
+    private ItemStack getItem(int slot) {
+        if (slot < 2) return inputSlots.getItem(slot);
+        else return resultSlots.getItem(0);
+    }
+    
+    private int getActiveWindowId(ServerPlayer player) {
+        AbstractContainerMenu container = player.containerMenu;
+        return container == null ? -1 : container.containerId;
+    }
+    
+    @Override
+    public void setItem(int slot, org.bukkit.inventory.ItemStack itemStack) {
+        setItem(slot, CraftItemStack.asNMSCopy(itemStack));
+    }
+    
+    @Override
+    public @NotNull Inventory getBukkitInventory() {
+        return view.getTopInventory();
+    }
+    
+    @Override
+    public String getRenameText() {
+        return text;
+    }
+    
+    @Override
+    public boolean isOpen() {
+        return open;
+    }
+    
+    // --- AnvilMenu ---
+    
+    @Override
+    public CraftInventoryView getBukkitView() {
+        return view;
+    }
+    
+    /**
+     * Called every tick to see if the {@link Player} can still use that container.
+     * (Used to for checking the distance between the {@link Player} and the container
+     * and closing the window when the distance gets too big.)
+     *
+     * @param player The {@link Player}
+     * @return If the {@link Player} can still use that container
+     */
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+    
+    /**
+     * Called when the rename text gets changed.
+     *
+     * @param s The new rename text
+     */
+    @Override
+    public boolean setItemName(String s) {
+        // save rename text
+        text = s;
+        
+        // call rename handlers
+        if (renameHandlers != null)
+            renameHandlers.forEach(handler -> handler.accept(s));
+        
+        // the client expects the item to change to its new name and removes it from the inventory, so it needs to be sent again
+        sendItem(2);
+        
+        return false;
+    }
+    
+    /**
+     * Called when the container is closed to give the items back.
+     *
+     * @param player The {@link Player} that closed this container
+     */
+    @Override
+    public void removed(Player player) {
+        open = false;
+    }
+    
+    
+    /**
+     * Called when the container gets closed to put items back into a players
+     * inventory or drop them in the world.
+     *
+     * @param player    The {@link Player} that closed this container
+     * @param container The container
+     */
+    @Override
+    protected void clearContainer(Player player, Container container) {
+        open = false;
+    }
+    
+    /**
+     * Called when both items in the {@link AnvilMenu#inputSlots} were set to create
+     * the resulting product, calculate the level cost and call the {@link PrepareAnvilEvent}.
+     */
+    @Override
+    public void createResult() {
+        // empty
+    }
+    
+}

inventoryaccess/inventory-access-r16/src/main/java/xyz/xenondevs/inventoryaccess/r16/CartographyInventoryImpl.java

@@ -0,0 +1,137 @@
+package xyz.xenondevs.inventoryaccess.r16;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.NonNullList;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundContainerSetContentPacket;
+import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.Container;
+import net.minecraft.world.inventory.*;
+import net.minecraft.world.item.ItemStack;
+import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftItemStack;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import xyz.xenondevs.inventoryaccess.abstraction.inventory.CartographyInventory;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
+import net.minecraft.world.entity.player.Player;
+
+import java.lang.reflect.Field;
+
+class CartographyInventoryImpl extends CartographyTableMenu implements CartographyInventory {
+    
+    private static final Field RESULT_CONTAINER_FIELD = ReflectionUtils.getField(
+        CartographyTableMenu.class,
+        true,
+        "SRF(net.minecraft.world.inventory.CartographyTableMenu resultContainer)"
+    );
+    
+    private final ResultContainer resultContainer = ReflectionUtils.getFieldValue(RESULT_CONTAINER_FIELD, this);
+    private final Component title;
+    private final CraftInventoryView view;
+    private final ServerPlayer player;
+    
+    private boolean open;
+    
+    public CartographyInventoryImpl(org.bukkit.entity.Player player, @NotNull ComponentWrapper title) {
+        this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title));
+    }
+    
+    public CartographyInventoryImpl(ServerPlayer player, Component title) {
+        super(player.nextContainerCounter(), player.getInventory(), ContainerLevelAccess.create(player.level(), new BlockPos(0, 0, 0)));
+        
+        this.player = player;
+        this.title = title;
+        CraftInventoryCartography inventory = new CraftInventoryCartography(container, resultContainer);
+        view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
+    }
+    
+    public void open() {
+        open = true;
+        
+        // call the InventoryOpenEvent
+        CraftEventFactory.callInventoryOpenEvent(player, this);
+        
+        // set active container
+        player.containerMenu = this;
+        
+        // send open packet
+        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.CARTOGRAPHY_TABLE, title));
+        
+        // send initial items
+        NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
+        player.connection.send(new ClientboundContainerSetContentPacket(InventoryUtilsImpl.getActiveWindowId(player), incrementStateId(), itemsList, ItemStack.EMPTY));
+        
+        // init menu
+        player.initMenu(this);
+    }
+    
+    @Override
+    public boolean isOpen() {
+        return open;
+    }
+    
+    public void sendItem(int slot) {
+        player.connection.send(new ClientboundContainerSetSlotPacket(InventoryUtilsImpl.getActiveWindowId(player), slot, incrementStateId(), getItem(slot)));
+    }
+    
+    public void setItem(int slot, ItemStack item) {
+        if (slot < 2) container.setItem(slot, item);
+        else resultContainer.setItem(0, item);
+        
+        if (open) sendItem(slot);
+    }
+    
+    private ItemStack getItem(int slot) {
+        if (slot < 2) return container.getItem(slot);
+        else return resultContainer.getItem(0);
+    }
+    
+    @Override
+    public void setItem(int slot, org.bukkit.inventory.ItemStack itemStack) {
+        setItem(slot, CraftItemStack.asNMSCopy(itemStack));
+    }
+    
+    @Override
+    public Inventory getBukkitInventory() {
+        return view.getTopInventory();
+    }
+    
+    // --- CartographyTableMenu ---
+    
+    @Override
+    public CraftInventoryView getBukkitView() {
+        return view;
+    }
+    
+    @Override
+    public void slotsChanged(Container container) {
+    }
+    
+    @Override
+    public ItemStack quickMoveStack(Player player, int i) {
+        return ItemStack.EMPTY;
+    }
+    
+    @Override
+    public boolean canTakeItemForPickAll(ItemStack itemstack, Slot slot) {
+        return true;
+    }
+    
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+    
+    @Override
+    protected void clearContainer(Player player, Container container) {
+        // empty
+    }
+    
+}

inventoryaccess/inventory-access-r16/src/main/java/xyz/xenondevs/inventoryaccess/r16/InventoryUtilsImpl.java

@@ -0,0 +1,73 @@
+package xyz.xenondevs.inventoryaccess.r16;
+
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.Container;
+import net.minecraft.world.MenuProvider;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.MenuType;
+import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_20_R1.util.CraftChatMessage;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import xyz.xenondevs.inventoryaccess.abstraction.util.InventoryUtils;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+
+class InventoryUtilsImpl implements InventoryUtils {
+    
+    public static Component createNMSComponent(ComponentWrapper component) {
+        if (component == null) return null;
+        return CraftChatMessage.fromJSON(component.serializeToJson());
+    }
+    
+    public static int getActiveWindowId(ServerPlayer player) {
+        AbstractContainerMenu container = player.containerMenu;
+        return container == null ? -1 : container.containerId;
+    }
+    
+    @Override
+    public void openCustomInventory(@NotNull Player player, @NotNull Inventory inventory) {
+        openCustomInventory(player, inventory, null);
+    }
+    
+    @Override
+    public void openCustomInventory(@NotNull Player player, @NotNull Inventory inventory, @Nullable ComponentWrapper title) {
+        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
+        MenuType<?> menuType = CraftContainer.getNotchInventoryType(inventory);
+        
+        if (serverPlayer.connection != null) {
+            AbstractContainerMenu menu = new CraftContainer(inventory, serverPlayer, serverPlayer.nextContainerCounter());
+            menu = CraftEventFactory.callInventoryOpenEvent(serverPlayer, menu);
+            if (menu != null) {
+                Container container = ((CraftInventory) inventory).getInventory();
+                Component titleComponent;
+                if (title == null) {
+                    if (container instanceof MenuProvider)
+                        titleComponent = ((MenuProvider) container).getDisplayName();
+                    else titleComponent = CraftChatMessage.fromString(menu.getBukkitView().getTitle())[0];
+                } else titleComponent = createNMSComponent(title);
+                
+                menu.checkReachable = false;
+                serverPlayer.connection.send(new ClientboundOpenScreenPacket(menu.containerId, menuType, titleComponent));
+                serverPlayer.containerMenu = menu;
+                serverPlayer.initMenu(menu);
+            }
+        }
+        
+    }
+    
+    @Override
+    public void updateOpenInventoryTitle(@NotNull Player player, @NotNull ComponentWrapper title) {
+        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
+        AbstractContainerMenu menu = serverPlayer.containerMenu;
+        serverPlayer.connection.send(new ClientboundOpenScreenPacket(menu.containerId, menu.getType(), createNMSComponent(title)));
+        serverPlayer.initMenu(menu);
+    }
+    
+}

inventoryaccess/inventory-access-r16/src/main/java/xyz/xenondevs/inventoryaccess/r16/ItemUtilsImpl.java

@@ -0,0 +1,102 @@
+package xyz.xenondevs.inventoryaccess.r16;
+
+import com.mojang.authlib.GameProfile;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtIo;
+import net.minecraft.world.item.ItemStack;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
+import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
+
+import java.io.*;
+import java.lang.reflect.Method;
+import java.util.List;
+import java.util.stream.Collectors;
+
+class ItemUtilsImpl implements ItemUtils {
+    
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
+    @Override
+    public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        serializeItemStack(itemStack, out, compressed);
+        return out.toByteArray();
+    }
+    
+    @Override
+    public void serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, @NotNull OutputStream outputStream, boolean compressed) {
+        try {
+            ItemStack nmsStack = CraftItemStack.asNMSCopy(itemStack);
+            CompoundTag nbt = nmsStack.save(new CompoundTag());
+            
+            if (compressed) {
+                NbtIo.writeCompressed(nbt, outputStream);
+            } else {
+                DataOutputStream dataOut = new DataOutputStream(outputStream);
+                NbtIo.write(nbt, dataOut);
+            }
+            
+            outputStream.flush();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+    
+    @Override
+    public org.bukkit.inventory.ItemStack deserializeItemStack(byte[] data, boolean compressed) {
+        ByteArrayInputStream in = new ByteArrayInputStream(data);
+        return deserializeItemStack(in, compressed);
+    }
+    
+    @Override
+    public org.bukkit.inventory.ItemStack deserializeItemStack(@NotNull InputStream inputStream, boolean compressed) {
+        try {
+            CompoundTag nbt;
+            if (compressed) {
+                nbt = NbtIo.readCompressed(inputStream);
+            } else {
+                DataInputStream dataIn = new DataInputStream(inputStream);
+                nbt = NbtIo.read(dataIn);
+            }
+            
+            ItemStack itemStack = ItemStack.of(nbt);
+            
+            return CraftItemStack.asCraftMirror(itemStack);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        
+        return null;
+    }
+    
+    @Override
+    public void setDisplayName(@NotNull ItemMeta itemMeta, @NotNull ComponentWrapper name) {
+        ReflectionUtils.setFieldValue(
+            ReflectionRegistry.CB_CRAFT_META_ITEM_DISPLAY_NAME_FIELD,
+            itemMeta,
+            name.serializeToJson()
+        );
+    }
+    
+    @Override
+    public void setLore(@NotNull ItemMeta itemMeta, @NotNull List<@NotNull ComponentWrapper> lore) {
+        ReflectionUtils.setFieldValue(
+            ReflectionRegistry.CB_CRAFT_META_ITEM_LORE_FIELD,
+            itemMeta,
+            lore.stream().map(ComponentWrapper::serializeToJson).collect(Collectors.toList())
+        );
+    }
+    
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
+}

inventoryaccess/inventory-access-r16/src/main/java/xyz/xenondevs/inventoryaccess/r16/PlayerUtilsImpl.java

@@ -0,0 +1,98 @@
+package xyz.xenondevs.inventoryaccess.r16;
+
+import net.minecraft.network.protocol.game.ClientboundMapItemDataPacket;
+import net.minecraft.network.protocol.game.ClientboundResourcePackPacket;
+import net.minecraft.server.PlayerAdvancements;
+import net.minecraft.server.ServerAdvancementManager;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.saveddata.maps.MapDecoration;
+import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_20_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import xyz.xenondevs.inventoryaccess.abstraction.util.PlayerUtils;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+import xyz.xenondevs.inventoryaccess.map.MapIcon;
+import xyz.xenondevs.inventoryaccess.map.MapPatch;
+import xyz.xenondevs.inventoryaccess.util.DataUtils;
+import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
+
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+class PlayerUtilsImpl implements PlayerUtils {
+    
+    private static final Method REGISTER_LISTENERS_METHOD = ReflectionUtils.getMethod(
+        PlayerAdvancements.class,
+        true,
+        "ASRM(net/minecraft/server/PlayerAdvancements.registerListeners(Lnet/minecraft/server/ServerAdvancementManager;)V)",
+        ServerAdvancementManager.class
+    );
+    
+    @Override
+    public void stopAdvancementListening(@NotNull Player player) {
+        stopAdvancementListening(((CraftPlayer) player).getHandle());
+    }
+    
+    @Override
+    public void stopAdvancementListening(@NotNull Object player) {
+        ((ServerPlayer) player).getAdvancements().stopListening();
+    }
+    
+    @Override
+    public void startAdvancementListening(@NotNull Player player) {
+        startAdvancementListening(((CraftPlayer) player).getHandle());
+    }
+    
+    @Override
+    public void startAdvancementListening(@NotNull Object player) {
+        PlayerAdvancements advancements = ((ServerPlayer) player).getAdvancements();
+        ServerAdvancementManager manager = ((CraftServer) Bukkit.getServer()).getServer().getAdvancements();
+        ReflectionUtils.invokeMethod(REGISTER_LISTENERS_METHOD, advancements, manager);
+    }
+    
+    @Override
+    public void sendMapUpdate(@NotNull Player player, int mapId, byte scale, boolean locked, @Nullable MapPatch mapPatch, @Nullable List<MapIcon> icons) {
+        List<MapDecoration> decorations = icons != null ? icons.stream().map(this::toMapDecoration).collect(Collectors.toCollection(ArrayList::new)) : null;
+        MapItemSavedData.MapPatch patch = toMapPatch(mapPatch);
+        ClientboundMapItemDataPacket packet = new ClientboundMapItemDataPacket(mapId, scale, locked, decorations, patch);
+        ((CraftPlayer) player).getHandle().connection.send(packet);
+    }
+    
+    private MapDecoration toMapDecoration(MapIcon icon) {
+        return new MapDecoration(
+            MapDecoration.Type.byIcon(icon.getType().getId()),
+            icon.getX(), icon.getY(),
+            icon.getRot(),
+            icon.getComponent() != null ? InventoryUtilsImpl.createNMSComponent(icon.getComponent()) : null
+        );
+    }
+    
+    private MapItemSavedData.MapPatch toMapPatch(MapPatch patch) {
+        if (patch == null) return null;
+        
+        return new MapItemSavedData.MapPatch(
+            patch.getStartX(), patch.getStartY(),
+            patch.getWidth(), patch.getHeight(),
+            patch.getColors()
+        );
+    }
+    
+    @Override
+    public void sendResourcePack(@NotNull Player player, @NotNull String url, byte[] hash, @Nullable ComponentWrapper prompt, boolean force) {
+        var serverPlayer = ((CraftPlayer) player).getHandle();
+        var packet = new ClientboundResourcePackPacket(
+            url,
+            DataUtils.toHexadecimalString(hash),
+            force,
+            InventoryUtilsImpl.createNMSComponent(prompt)
+        );
+        serverPlayer.connection.send(packet);
+    }
+    
+}

inventoryaccess/inventory-access-r17/pom.xml

@@ -0,0 +1,139 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <groupId>xyz.xenondevs.invui</groupId>
+        <artifactId>invui-parent</artifactId>
+        <version>1.20</version>
+        <relativePath>../../pom.xml</relativePath>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>inventory-access-r17</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <spigot.version>1.20.2-R0.1-SNAPSHOT</spigot.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot</artifactId>
+            <version>${spigot.version}</version>
+            <classifier>remapped-mojang</classifier>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>xyz.xenondevs.invui</groupId>
+            <artifactId>inventory-access</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>xyz.xenondevs.string-remapper</groupId>
+                <artifactId>string-remapper-maven-plugin</artifactId>
+                <version>1.2</version>
+
+                <executions>
+                    <execution>
+                        <id>remap-spigot</id>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <configuration>
+                            <spigotVersion>${spigot.version}</spigotVersion>
+                            <goal>spigot</goal>
+                            <classesIn>${project.build.directory}/classes</classesIn>
+                            <classesOut>${project.build.directory}/classes-spigot</classesOut>
+                        </configuration>
+                    </execution>
+
+                    <execution>
+                        <id>remap-mojang</id>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <configuration>
+                            <spigotVersion>${spigot.version}</spigotVersion>
+                            <goal>mojang</goal>
+                            <classesIn>${project.build.directory}/classes</classesIn>
+                            <classesOut>${project.build.directory}/classes-mojang</classesOut>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>3.2.2</version>
+                <executions>
+                    <execution>
+                        <id>default-jar</id>
+                        <phase>none</phase>
+                    </execution>
+                    <execution>
+                        <id>spigot</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                        <configuration>
+                            <classesDirectory>${project.build.directory}/classes-spigot</classesDirectory>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>mojang</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                        <configuration>
+                            <classesDirectory>${project.build.directory}/classes-mojang</classesDirectory>
+                            <classifier>remapped-mojang</classifier>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>net.md-5</groupId>
+                <artifactId>specialsource-maven-plugin</artifactId>
+                <version>1.2.2</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <id>remap-obf</id>
+                        <configuration>
+                            <srgIn>org.spigotmc:minecraft-server:${spigot.version}:txt:maps-mojang</srgIn>
+                            <reverse>true</reverse>
+                            <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-mojang</remappedDependencies>
+                            <remappedArtifactAttached>false</remappedArtifactAttached>
+                            <finalName>${project.artifactId}-${project.version}-remapped-obf</finalName>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <id>remap-spigot</id>
+                        <configuration>
+                            <inputFile>${project.build.directory}/${project.artifactId}-${project.version}-remapped-obf.jar</inputFile>
+                            <srgIn>org.spigotmc:minecraft-server:${spigot.version}:csrg:maps-spigot</srgIn>
+                            <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-obf</remappedDependencies>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

inventoryaccess/inventory-access-r17/src/main/java/xyz/xenondevs/inventoryaccess/r17/AnvilInventoryImpl.java

@@ -0,0 +1,190 @@
+package xyz.xenondevs.inventoryaccess.r17;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.NonNullList;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundContainerSetContentPacket;
+import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.Container;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.AnvilMenu;
+import net.minecraft.world.inventory.ContainerLevelAccess;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.item.ItemStack;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftItemStack;
+import org.bukkit.event.inventory.PrepareAnvilEvent;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import xyz.xenondevs.inventoryaccess.abstraction.inventory.AnvilInventory;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+
+import java.util.List;
+import java.util.function.Consumer;
+
+class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
+    
+    private final List<Consumer<String>> renameHandlers;
+    private final CraftInventoryView view;
+    private final ServerPlayer player;
+    
+    private String text;
+    private boolean open;
+    
+    public AnvilInventoryImpl(org.bukkit.entity.Player player, @NotNull ComponentWrapper title, List<Consumer<String>> renameHandlers) {
+        this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title), renameHandlers);
+    }
+    
+    public AnvilInventoryImpl(ServerPlayer player, Component title, List<Consumer<String>> renameHandlers) {
+        super(player.nextContainerCounter(), player.getInventory(),
+            ContainerLevelAccess.create(player.level(), new BlockPos(0, 0, 0)));
+        
+        setTitle(title);
+        this.renameHandlers = renameHandlers;
+        this.player = player;
+        
+        CraftInventoryAnvil inventory = new CraftInventoryAnvil(access.getLocation(),
+            inputSlots, resultSlots, this);
+        this.view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
+    }
+    
+    public void open() {
+        open = true;
+        
+        // call the InventoryOpenEvent
+        CraftEventFactory.callInventoryOpenEvent(player, this);
+        
+        // set active container
+        player.containerMenu = this;
+        
+        // send open packet
+        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.ANVIL, getTitle()));
+        
+        // send initial items
+        NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
+        player.connection.send(new ClientboundContainerSetContentPacket(getActiveWindowId(player), incrementStateId(), itemsList, ItemStack.EMPTY));
+        
+        // init menu
+        player.initMenu(this);
+    }
+    
+    public void sendItem(int slot) {
+        player.connection.send(new ClientboundContainerSetSlotPacket(getActiveWindowId(player), incrementStateId(), slot, getItem(slot)));
+    }
+    
+    public void setItem(int slot, ItemStack item) {
+        if (slot < 2) inputSlots.setItem(slot, item);
+        else resultSlots.setItem(0, item);
+        
+        if (open) sendItem(slot);
+    }
+    
+    private ItemStack getItem(int slot) {
+        if (slot < 2) return inputSlots.getItem(slot);
+        else return resultSlots.getItem(0);
+    }
+    
+    private int getActiveWindowId(ServerPlayer player) {
+        AbstractContainerMenu container = player.containerMenu;
+        return container == null ? -1 : container.containerId;
+    }
+    
+    @Override
+    public void setItem(int slot, org.bukkit.inventory.ItemStack itemStack) {
+        setItem(slot, CraftItemStack.asNMSCopy(itemStack));
+    }
+    
+    @Override
+    public @NotNull Inventory getBukkitInventory() {
+        return view.getTopInventory();
+    }
+    
+    @Override
+    public String getRenameText() {
+        return text;
+    }
+    
+    @Override
+    public boolean isOpen() {
+        return open;
+    }
+    
+    // --- AnvilMenu ---
+    
+    @Override
+    public CraftInventoryView getBukkitView() {
+        return view;
+    }
+    
+    /**
+     * Called every tick to see if the {@link Player} can still use that container.
+     * (Used to for checking the distance between the {@link Player} and the container
+     * and closing the window when the distance gets too big.)
+     *
+     * @param player The {@link Player}
+     * @return If the {@link Player} can still use that container
+     */
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+    
+    /**
+     * Called when the rename text gets changed.
+     *
+     * @param s The new rename text
+     */
+    @Override
+    public boolean setItemName(String s) {
+        // save rename text
+        text = s;
+        
+        // call rename handlers
+        if (renameHandlers != null)
+            renameHandlers.forEach(handler -> handler.accept(s));
+        
+        // the client expects the item to change to its new name and removes it from the inventory, so it needs to be sent again
+        sendItem(2);
+        
+        return false;
+    }
+    
+    /**
+     * Called when the container is closed to give the items back.
+     *
+     * @param player The {@link Player} that closed this container
+     */
+    @Override
+    public void removed(Player player) {
+        open = false;
+    }
+    
+    
+    /**
+     * Called when the container gets closed to put items back into a players
+     * inventory or drop them in the world.
+     *
+     * @param player    The {@link Player} that closed this container
+     * @param container The container
+     */
+    @Override
+    protected void clearContainer(Player player, Container container) {
+        open = false;
+    }
+    
+    /**
+     * Called when both items in the {@link AnvilMenu#inputSlots} were set to create
+     * the resulting product, calculate the level cost and call the {@link PrepareAnvilEvent}.
+     */
+    @Override
+    public void createResult() {
+        // empty
+    }
+    
+}

inventoryaccess/inventory-access-r17/src/main/java/xyz/xenondevs/inventoryaccess/r17/CartographyInventoryImpl.java

@@ -0,0 +1,137 @@
+package xyz.xenondevs.inventoryaccess.r17;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.NonNullList;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundContainerSetContentPacket;
+import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.Container;
+import net.minecraft.world.inventory.*;
+import net.minecraft.world.item.ItemStack;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftItemStack;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import xyz.xenondevs.inventoryaccess.abstraction.inventory.CartographyInventory;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
+import net.minecraft.world.entity.player.Player;
+
+import java.lang.reflect.Field;
+
+class CartographyInventoryImpl extends CartographyTableMenu implements CartographyInventory {
+    
+    private static final Field RESULT_CONTAINER_FIELD = ReflectionUtils.getField(
+        CartographyTableMenu.class,
+        true,
+        "SRF(net.minecraft.world.inventory.CartographyTableMenu resultContainer)"
+    );
+    
+    private final ResultContainer resultContainer = ReflectionUtils.getFieldValue(RESULT_CONTAINER_FIELD, this);
+    private final Component title;
+    private final CraftInventoryView view;
+    private final ServerPlayer player;
+    
+    private boolean open;
+    
+    public CartographyInventoryImpl(org.bukkit.entity.Player player, @NotNull ComponentWrapper title) {
+        this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title));
+    }
+    
+    public CartographyInventoryImpl(ServerPlayer player, Component title) {
+        super(player.nextContainerCounter(), player.getInventory(), ContainerLevelAccess.create(player.level(), new BlockPos(0, 0, 0)));
+        
+        this.player = player;
+        this.title = title;
+        CraftInventoryCartography inventory = new CraftInventoryCartography(container, resultContainer);
+        view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
+    }
+    
+    public void open() {
+        open = true;
+        
+        // call the InventoryOpenEvent
+        CraftEventFactory.callInventoryOpenEvent(player, this);
+        
+        // set active container
+        player.containerMenu = this;
+        
+        // send open packet
+        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.CARTOGRAPHY_TABLE, title));
+        
+        // send initial items
+        NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
+        player.connection.send(new ClientboundContainerSetContentPacket(InventoryUtilsImpl.getActiveWindowId(player), incrementStateId(), itemsList, ItemStack.EMPTY));
+        
+        // init menu
+        player.initMenu(this);
+    }
+    
+    @Override
+    public boolean isOpen() {
+        return open;
+    }
+    
+    public void sendItem(int slot) {
+        player.connection.send(new ClientboundContainerSetSlotPacket(InventoryUtilsImpl.getActiveWindowId(player), slot, incrementStateId(), getItem(slot)));
+    }
+    
+    public void setItem(int slot, ItemStack item) {
+        if (slot < 2) container.setItem(slot, item);
+        else resultContainer.setItem(0, item);
+        
+        if (open) sendItem(slot);
+    }
+    
+    private ItemStack getItem(int slot) {
+        if (slot < 2) return container.getItem(slot);
+        else return resultContainer.getItem(0);
+    }
+    
+    @Override
+    public void setItem(int slot, org.bukkit.inventory.ItemStack itemStack) {
+        setItem(slot, CraftItemStack.asNMSCopy(itemStack));
+    }
+    
+    @Override
+    public Inventory getBukkitInventory() {
+        return view.getTopInventory();
+    }
+    
+    // --- CartographyTableMenu ---
+    
+    @Override
+    public CraftInventoryView getBukkitView() {
+        return view;
+    }
+    
+    @Override
+    public void slotsChanged(Container container) {
+    }
+    
+    @Override
+    public ItemStack quickMoveStack(Player player, int i) {
+        return ItemStack.EMPTY;
+    }
+    
+    @Override
+    public boolean canTakeItemForPickAll(ItemStack itemstack, Slot slot) {
+        return true;
+    }
+    
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+    
+    @Override
+    protected void clearContainer(Player player, Container container) {
+        // empty
+    }
+    
+}

inventoryaccess/inventory-access-r17/src/main/java/xyz/xenondevs/inventoryaccess/r17/InventoryUtilsImpl.java

@@ -0,0 +1,73 @@
+package xyz.xenondevs.inventoryaccess.r17;
+
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.Container;
+import net.minecraft.world.MenuProvider;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.MenuType;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_20_R2.util.CraftChatMessage;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import xyz.xenondevs.inventoryaccess.abstraction.util.InventoryUtils;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+
+class InventoryUtilsImpl implements InventoryUtils {
+    
+    public static Component createNMSComponent(ComponentWrapper component) {
+        if (component == null) return null;
+        return CraftChatMessage.fromJSON(component.serializeToJson());
+    }
+    
+    public static int getActiveWindowId(ServerPlayer player) {
+        AbstractContainerMenu container = player.containerMenu;
+        return container == null ? -1 : container.containerId;
+    }
+    
+    @Override
+    public void openCustomInventory(@NotNull Player player, @NotNull Inventory inventory) {
+        openCustomInventory(player, inventory, null);
+    }
+    
+    @Override
+    public void openCustomInventory(@NotNull Player player, @NotNull Inventory inventory, @Nullable ComponentWrapper title) {
+        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
+        MenuType<?> menuType = CraftContainer.getNotchInventoryType(inventory);
+        
+        if (serverPlayer.connection != null) {
+            AbstractContainerMenu menu = new CraftContainer(inventory, serverPlayer, serverPlayer.nextContainerCounter());
+            menu = CraftEventFactory.callInventoryOpenEvent(serverPlayer, menu);
+            if (menu != null) {
+                Container container = ((CraftInventory) inventory).getInventory();
+                Component titleComponent;
+                if (title == null) {
+                    if (container instanceof MenuProvider)
+                        titleComponent = ((MenuProvider) container).getDisplayName();
+                    else titleComponent = CraftChatMessage.fromString(menu.getBukkitView().getTitle())[0];
+                } else titleComponent = createNMSComponent(title);
+                
+                menu.checkReachable = false;
+                serverPlayer.connection.send(new ClientboundOpenScreenPacket(menu.containerId, menuType, titleComponent));
+                serverPlayer.containerMenu = menu;
+                serverPlayer.initMenu(menu);
+            }
+        }
+        
+    }
+    
+    @Override
+    public void updateOpenInventoryTitle(@NotNull Player player, @NotNull ComponentWrapper title) {
+        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
+        AbstractContainerMenu menu = serverPlayer.containerMenu;
+        serverPlayer.connection.send(new ClientboundOpenScreenPacket(menu.containerId, menu.getType(), createNMSComponent(title)));
+        serverPlayer.initMenu(menu);
+    }
+    
+}

inventoryaccess/inventory-access-r17/src/main/java/xyz/xenondevs/inventoryaccess/r17/ItemUtilsImpl.java

@@ -0,0 +1,102 @@
+package xyz.xenondevs.inventoryaccess.r17;
+
+import com.mojang.authlib.GameProfile;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtIo;
+import net.minecraft.world.item.ItemStack;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
+import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
+
+import java.io.*;
+import java.lang.reflect.Method;
+import java.util.List;
+import java.util.stream.Collectors;
+
+class ItemUtilsImpl implements ItemUtils {
+    
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );  
+    
+    @Override
+    public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        serializeItemStack(itemStack, out, compressed);
+        return out.toByteArray();
+    }
+    
+    @Override
+    public void serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, @NotNull OutputStream outputStream, boolean compressed) {
+        try {
+            ItemStack nmsStack = CraftItemStack.asNMSCopy(itemStack);
+            CompoundTag nbt = nmsStack.save(new CompoundTag());
+            
+            if (compressed) {
+                NbtIo.writeCompressed(nbt, outputStream);
+            } else {
+                DataOutputStream dataOut = new DataOutputStream(outputStream);
+                NbtIo.write(nbt, dataOut);
+            }
+            
+            outputStream.flush();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+    
+    @Override
+    public org.bukkit.inventory.ItemStack deserializeItemStack(byte[] data, boolean compressed) {
+        ByteArrayInputStream in = new ByteArrayInputStream(data);
+        return deserializeItemStack(in, compressed);
+    }
+    
+    @Override
+    public org.bukkit.inventory.ItemStack deserializeItemStack(@NotNull InputStream inputStream, boolean compressed) {
+        try {
+            CompoundTag nbt;
+            if (compressed) {
+                nbt = NbtIo.readCompressed(inputStream);
+            } else {
+                DataInputStream dataIn = new DataInputStream(inputStream);
+                nbt = NbtIo.read(dataIn);
+            }
+            
+            ItemStack itemStack = ItemStack.of(nbt);
+            
+            return CraftItemStack.asCraftMirror(itemStack);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        
+        return null;
+    }
+    
+    @Override
+    public void setDisplayName(@NotNull ItemMeta itemMeta, @NotNull ComponentWrapper name) {
+        ReflectionUtils.setFieldValue(
+            ReflectionRegistry.CB_CRAFT_META_ITEM_DISPLAY_NAME_FIELD,
+            itemMeta,
+            name.serializeToJson()
+        );
+    }
+    
+    @Override
+    public void setLore(@NotNull ItemMeta itemMeta, @NotNull List<@NotNull ComponentWrapper> lore) {
+        ReflectionUtils.setFieldValue(
+            ReflectionRegistry.CB_CRAFT_META_ITEM_LORE_FIELD,
+            itemMeta,
+            lore.stream().map(ComponentWrapper::serializeToJson).collect(Collectors.toList())
+        );
+    }
+    
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
+}

inventoryaccess/inventory-access-r17/src/main/java/xyz/xenondevs/inventoryaccess/r17/PlayerUtilsImpl.java

@@ -0,0 +1,98 @@
+package xyz.xenondevs.inventoryaccess.r17;
+
+import net.minecraft.network.protocol.common.ClientboundResourcePackPacket;
+import net.minecraft.network.protocol.game.ClientboundMapItemDataPacket;
+import net.minecraft.server.PlayerAdvancements;
+import net.minecraft.server.ServerAdvancementManager;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.saveddata.maps.MapDecoration;
+import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_20_R2.CraftServer;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import xyz.xenondevs.inventoryaccess.abstraction.util.PlayerUtils;
+import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+import xyz.xenondevs.inventoryaccess.map.MapIcon;
+import xyz.xenondevs.inventoryaccess.map.MapPatch;
+import xyz.xenondevs.inventoryaccess.util.DataUtils;
+import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
+
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+class PlayerUtilsImpl implements PlayerUtils {
+    
+    private static final Method REGISTER_LISTENERS_METHOD = ReflectionUtils.getMethod(
+        PlayerAdvancements.class,
+        true,
+        "ASRM(net/minecraft/server/PlayerAdvancements.registerListeners(Lnet/minecraft/server/ServerAdvancementManager;)V)",
+        ServerAdvancementManager.class
+    );
+    
+    @Override
+    public void stopAdvancementListening(@NotNull Player player) {
+        stopAdvancementListening(((CraftPlayer) player).getHandle());
+    }
+    
+    @Override
+    public void stopAdvancementListening(@NotNull Object player) {
+        ((ServerPlayer) player).getAdvancements().stopListening();
+    }
+    
+    @Override
+    public void startAdvancementListening(@NotNull Player player) {
+        startAdvancementListening(((CraftPlayer) player).getHandle());
+    }
+    
+    @Override
+    public void startAdvancementListening(@NotNull Object player) {
+        PlayerAdvancements advancements = ((ServerPlayer) player).getAdvancements();
+        ServerAdvancementManager manager = ((CraftServer) Bukkit.getServer()).getServer().getAdvancements();
+        ReflectionUtils.invokeMethod(REGISTER_LISTENERS_METHOD, advancements, manager);
+    }
+    
+    @Override
+    public void sendMapUpdate(@NotNull Player player, int mapId, byte scale, boolean locked, @Nullable MapPatch mapPatch, @Nullable List<MapIcon> icons) {
+        List<MapDecoration> decorations = icons != null ? icons.stream().map(this::toMapDecoration).collect(Collectors.toCollection(ArrayList::new)) : null;
+        MapItemSavedData.MapPatch patch = toMapPatch(mapPatch);
+        ClientboundMapItemDataPacket packet = new ClientboundMapItemDataPacket(mapId, scale, locked, decorations, patch);
+        ((CraftPlayer) player).getHandle().connection.send(packet);
+    }
+    
+    private MapDecoration toMapDecoration(MapIcon icon) {
+        return new MapDecoration(
+            MapDecoration.Type.byIcon(icon.getType().getId()),
+            icon.getX(), icon.getY(),
+            icon.getRot(),
+            icon.getComponent() != null ? InventoryUtilsImpl.createNMSComponent(icon.getComponent()) : null
+        );
+    }
+    
+    private MapItemSavedData.MapPatch toMapPatch(MapPatch patch) {
+        if (patch == null) return null;
+        
+        return new MapItemSavedData.MapPatch(
+            patch.getStartX(), patch.getStartY(),
+            patch.getWidth(), patch.getHeight(),
+            patch.getColors()
+        );
+    }
+    
+    @Override
+    public void sendResourcePack(@NotNull Player player, @NotNull String url, byte[] hash, @Nullable ComponentWrapper prompt, boolean force) {
+        var serverPlayer = ((CraftPlayer) player).getHandle();
+        var packet = new ClientboundResourcePackPacket(
+            url,
+            DataUtils.toHexadecimalString(hash),
+            force,
+            InventoryUtilsImpl.createNMSComponent(prompt)
+        );
+        serverPlayer.connection.send(packet);
+    }
+    
+}

inventoryaccess/inventory-access-r2/pom.xml

@@ -21,7 +21,7 @@
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot</artifactId>
-            <version>1.15.2-R0.1-SNAPSHOT</version>
+            <version>1.14-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

inventoryaccess/inventory-access-r2/src/main/java/xyz/xenondevs/inventoryaccess/r2/AnvilInventoryImpl.java

@@ -1,11 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r2;
 
-import net.minecraft.server.v1_15_R1.*;
+import net.minecraft.server.v1_14_R1.*;
-import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;

inventoryaccess/inventory-access-r2/src/main/java/xyz/xenondevs/inventoryaccess/r2/CartographyInventoryImpl.java

@@ -1,11 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r2;
 
-import net.minecraft.server.v1_15_R1.*;
+import net.minecraft.server.v1_14_R1.*;
-import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -49,7 +49,7 @@ class CartographyInventoryImpl extends ContainerCartography implements Cartograp
         player.activeContainer = this;
         
         // send open packet
-        player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.CARTOGRAPHY_TABLE, title));
+        player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.CARTOGRAPHY, title));
         
         // send initial items
         NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.a, getItem(0), getItem(1), getItem(2));

inventoryaccess/inventory-access-r2/src/main/java/xyz/xenondevs/inventoryaccess/r2/InventoryUtilsImpl.java

@@ -1,11 +1,12 @@
 package xyz.xenondevs.inventoryaccess.r2;
 
-import net.minecraft.server.v1_15_R1.*;
+import net.minecraft.server.v1_14_R1.*;
-import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventory;
 import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.InventoryType;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -14,6 +15,28 @@ import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 
 class InventoryUtilsImpl implements InventoryUtils {
     
+    private static Containers<?> getNotchInventoryType(Inventory inventory) {
+        InventoryType type = inventory.getType();
+        if (type == InventoryType.CHEST) {
+            switch (inventory.getSize()) {
+                case 9:
+                    return Containers.GENERIC_9X1;
+                case 18:
+                    return Containers.GENERIC_9X2;
+                case 27:
+                    return Containers.GENERIC_9X3;
+                case 36:
+                    return Containers.GENERIC_9X4;
+                case 45:
+                    return Containers.GENERIC_9X5;
+                case 54:
+                    return Containers.GENERIC_9X6;
+                default:
+                    throw new IllegalArgumentException("Unsupported custom inventory size " + inventory.getSize());
+            }
+        } else return CraftContainer.getNotchInventoryType(type);
+    }
+    
     public static IChatBaseComponent createNMSComponent(ComponentWrapper component) {
         return IChatBaseComponent.ChatSerializer.a(component.serializeToJson());
     }
@@ -31,7 +54,7 @@ class InventoryUtilsImpl implements InventoryUtils {
     @Override
     public void openCustomInventory(@NotNull Player player, @NotNull Inventory inventory, @Nullable ComponentWrapper title) {
         EntityPlayer entityPlayer = ((CraftPlayer) player).getHandle();
-        Containers<?> windowType = CraftContainer.getNotchInventoryType(inventory);
+        Containers<?> windowType = getNotchInventoryType(inventory);
         
         if (entityPlayer.playerConnection != null) {
             Container container = new CraftContainer(inventory, entityPlayer, entityPlayer.nextContainerCounter());

inventoryaccess/inventory-access-r2/src/main/java/xyz/xenondevs/inventoryaccess/r2/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r2;
 
-import net.minecraft.server.v1_15_R1.ItemStack;
+import com.mojang.authlib.GameProfile;
-import net.minecraft.server.v1_15_R1.NBTCompressedStreamTools;
+import net.minecraft.server.v1_14_R1.ItemStack;
-import net.minecraft.server.v1_15_R1.NBTTagCompound;
+import net.minecraft.server.v1_14_R1.NBTCompressedStreamTools;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
+import net.minecraft.server.v1_14_R1.NBTTagCompound;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Field;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Field CRAFT_META_SKULL_GAME_PROFILE_FIELD = ReflectionUtils.getField(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "profile"
+    );
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.setFieldValue(CRAFT_META_SKULL_GAME_PROFILE_FIELD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r2/src/main/java/xyz/xenondevs/inventoryaccess/r2/PlayerUtilsImpl.java

@@ -1,10 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r2;
 
-import net.minecraft.server.v1_15_R1.AdvancementDataPlayer;
+import net.minecraft.server.v1_14_R1.AdvancementDataPlayer;
-import net.minecraft.server.v1_15_R1.EntityPlayer;
+import net.minecraft.server.v1_14_R1.EntityPlayer;
-import net.minecraft.server.v1_15_R1.MapIcon;
+import net.minecraft.server.v1_14_R1.MapIcon;
-import net.minecraft.server.v1_15_R1.PacketPlayOutMap;
+import net.minecraft.server.v1_14_R1.PacketPlayOutMap;
-import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

inventoryaccess/inventory-access-r3/pom.xml

@@ -21,7 +21,7 @@
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot</artifactId>
-            <version>1.16.1-R0.1-SNAPSHOT</version>
+            <version>1.14.4-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

inventoryaccess/inventory-access-r3/src/main/java/xyz/xenondevs/inventoryaccess/r3/AnvilInventoryImpl.java

@@ -1,28 +1,37 @@
 package xyz.xenondevs.inventoryaccess.r3;
 
-import net.minecraft.server.v1_16_R1.*;
+import net.minecraft.server.v1_14_R1.*;
-import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.inventory.AnvilInventory;
 import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
+import java.lang.reflect.Field;
 import java.util.List;
 import java.util.function.Consumer;
 
 class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
     
+    private static final Field CONTAINER_ACCESS_FIELD = ReflectionUtils.getField(ContainerAnvil.class, true, "containerAccess");
+    private static final Field REPAIR_INVENTORY_FIELD = ReflectionUtils.getField(ContainerAnvil.class, true, "repairInventory");
+    private static final Field RESULT_INVENTORY_FIELD = ReflectionUtils.getField(ContainerAnvil.class, true, "resultInventory");
+    
     private final IChatBaseComponent title;
     private final List<Consumer<String>> renameHandlers;
     private final CraftInventoryView view;
     private final EntityPlayer player;
     
+    private final IInventory repairInventory;
+    private final IInventory resultInventory;
+    
     private String text;
     private boolean open;
     
@@ -38,6 +47,10 @@ class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
         this.renameHandlers = renameHandlers;
         this.player = player;
         
+        repairInventory = ReflectionUtils.getFieldValue(REPAIR_INVENTORY_FIELD, this);
+        resultInventory = ReflectionUtils.getFieldValue(RESULT_INVENTORY_FIELD, this);
+        ContainerAccess containerAccess = ReflectionUtils.getFieldValue(CONTAINER_ACCESS_FIELD, this);
+        
         CraftInventoryAnvil inventory = new CraftInventoryAnvil(containerAccess.getLocation(),
             repairInventory, resultInventory, this);
         this.view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
@@ -56,7 +69,7 @@ class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
         player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.ANVIL, title));
         
         // send initial items
-        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.b, getItem(0), getItem(1), getItem(2));
+        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.a, getItem(0), getItem(1), getItem(2));
         player.playerConnection.sendPacket(new PacketPlayOutWindowItems(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
     }
     
@@ -146,7 +159,7 @@ class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
     }
     
     /**
-     * Called when both items in the {@link ContainerAnvil#repairInventory} were set to create
+     * Called when both items in the {@link AnvilInventoryImpl#repairInventory} were set to create
      * the resulting product, calculate the level cost and call the {@link PrepareAnvilEvent}.
      */
     @Override

inventoryaccess/inventory-access-r3/src/main/java/xyz/xenondevs/inventoryaccess/r3/CartographyInventoryImpl.java

@@ -1,11 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r3;
 
-import net.minecraft.server.v1_16_R1.*;
+import net.minecraft.server.v1_14_R1.*;
-import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -49,10 +49,10 @@ class CartographyInventoryImpl extends ContainerCartography implements Cartograp
         player.activeContainer = this;
         
         // send open packet
-        player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.CARTOGRAPHY_TABLE, title));
+        player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.CARTOGRAPHY, title));
         
         // send initial items
-        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.b, getItem(0), getItem(1), getItem(2));
+        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.a, getItem(0), getItem(1), getItem(2));
         player.playerConnection.sendPacket(new PacketPlayOutWindowItems(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
     }
     
@@ -100,7 +100,7 @@ class CartographyInventoryImpl extends ContainerCartography implements Cartograp
     
     @Override
     public ItemStack shiftClick(EntityHuman entityhuman, int i) {
-        return ItemStack.b;
+        return ItemStack.a;
     }
     
     @Override

inventoryaccess/inventory-access-r3/src/main/java/xyz/xenondevs/inventoryaccess/r3/InventoryUtilsImpl.java

@@ -1,12 +1,12 @@
 package xyz.xenondevs.inventoryaccess.r3;
 
-import net.minecraft.server.v1_16_R1.*;
+import net.minecraft.server.v1_14_R1.*;
-import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_16_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.InventoryType;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -15,6 +15,28 @@ import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 
 class InventoryUtilsImpl implements InventoryUtils {
     
+    private static Containers<?> getNotchInventoryType(Inventory inventory) {
+        InventoryType type = inventory.getType();
+        if (type == InventoryType.CHEST) {
+            switch (inventory.getSize()) {
+                case 9:
+                    return Containers.GENERIC_9X1;
+                case 18:
+                    return Containers.GENERIC_9X2;
+                case 27:
+                    return Containers.GENERIC_9X3;
+                case 36:
+                    return Containers.GENERIC_9X4;
+                case 45:
+                    return Containers.GENERIC_9X5;
+                case 54:
+                    return Containers.GENERIC_9X6;
+                default:
+                    throw new IllegalArgumentException("Unsupported custom inventory size " + inventory.getSize());
+            }
+        } else return CraftContainer.getNotchInventoryType(type);
+    }
+    
     public static IChatBaseComponent createNMSComponent(ComponentWrapper component) {
         return IChatBaseComponent.ChatSerializer.a(component.serializeToJson());
     }
@@ -32,7 +54,7 @@ class InventoryUtilsImpl implements InventoryUtils {
     @Override
     public void openCustomInventory(@NotNull Player player, @NotNull Inventory inventory, @Nullable ComponentWrapper title) {
         EntityPlayer entityPlayer = ((CraftPlayer) player).getHandle();
-        Containers<?> windowType = CraftContainer.getNotchInventoryType(inventory);
+        Containers<?> windowType = getNotchInventoryType(inventory);
         
         if (entityPlayer.playerConnection != null) {
             Container container = new CraftContainer(inventory, entityPlayer, entityPlayer.nextContainerCounter());
@@ -43,7 +65,7 @@ class InventoryUtilsImpl implements InventoryUtils {
                 if (title == null) {
                     if (iinventory instanceof ITileInventory)
                         titleComponent = ((ITileInventory) iinventory).getScoreboardDisplayName();
-                    else titleComponent = CraftChatMessage.fromString(container.getBukkitView().getTitle())[0];
+                    else titleComponent = new ChatComponentText(container.getBukkitView().getTitle());
                 } else titleComponent = createNMSComponent(title);
                 
                 entityPlayer.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, titleComponent));

inventoryaccess/inventory-access-r3/src/main/java/xyz/xenondevs/inventoryaccess/r3/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r3;
 
-import net.minecraft.server.v1_16_R1.ItemStack;
+import com.mojang.authlib.GameProfile;
-import net.minecraft.server.v1_16_R1.NBTCompressedStreamTools;
+import net.minecraft.server.v1_14_R1.ItemStack;
-import net.minecraft.server.v1_16_R1.NBTTagCompound;
+import net.minecraft.server.v1_14_R1.NBTCompressedStreamTools;
-import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack;
+import net.minecraft.server.v1_14_R1.NBTTagCompound;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r3/src/main/java/xyz/xenondevs/inventoryaccess/r3/PlayerUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r3;
 
-import net.minecraft.server.v1_16_R1.*;
+import net.minecraft.server.v1_14_R1.AdvancementDataPlayer;
-import org.bukkit.Bukkit;
+import net.minecraft.server.v1_14_R1.EntityPlayer;
-import org.bukkit.craftbukkit.v1_16_R1.CraftServer;
+import net.minecraft.server.v1_14_R1.MapIcon;
-import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
+import net.minecraft.server.v1_14_R1.PacketPlayOutMap;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -19,7 +20,7 @@ import java.util.stream.Collectors;
 class PlayerUtilsImpl implements PlayerUtils {
     
     private static final Method REGISTER_LISTENERS_METHOD =
-        ReflectionUtils.getMethod(AdvancementDataPlayer.class, true, "b", AdvancementDataWorld.class);
+        ReflectionUtils.getMethod(AdvancementDataPlayer.class, true, "d");
     
     @Override
     public void stopAdvancementListening(@NotNull Player player) {
@@ -39,8 +40,7 @@ class PlayerUtilsImpl implements PlayerUtils {
     @Override
     public void startAdvancementListening(@NotNull Object player) {
         AdvancementDataPlayer advancements = ((EntityPlayer) player).getAdvancementData();
-        AdvancementDataWorld manager = ((CraftServer) Bukkit.getServer()).getServer().getAdvancementData();
+        ReflectionUtils.invokeMethod(REGISTER_LISTENERS_METHOD, advancements);
-        ReflectionUtils.invokeMethod(REGISTER_LISTENERS_METHOD, advancements, manager);
     }
     
     @Override

inventoryaccess/inventory-access-r4/pom.xml

@@ -21,7 +21,7 @@
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot</artifactId>
-            <version>1.16.2-R0.1-SNAPSHOT</version>
+            <version>1.15.2-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

inventoryaccess/inventory-access-r4/src/main/java/xyz/xenondevs/inventoryaccess/r4/AnvilInventoryImpl.java

@@ -1,28 +1,37 @@
 package xyz.xenondevs.inventoryaccess.r4;
 
-import net.minecraft.server.v1_16_R2.*;
+import net.minecraft.server.v1_15_R1.*;
-import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.inventory.AnvilInventory;
 import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
+import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
+import java.lang.reflect.Field;
 import java.util.List;
 import java.util.function.Consumer;
 
 class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
     
+    private static final Field CONTAINER_ACCESS_FIELD = ReflectionUtils.getField(ContainerAnvil.class, true, "containerAccess");
+    private static final Field REPAIR_INVENTORY_FIELD = ReflectionUtils.getField(ContainerAnvil.class, true, "repairInventory");
+    private static final Field RESULT_INVENTORY_FIELD = ReflectionUtils.getField(ContainerAnvil.class, true, "resultInventory");
+    
     private final IChatBaseComponent title;
     private final List<Consumer<String>> renameHandlers;
     private final CraftInventoryView view;
     private final EntityPlayer player;
     
+    private final IInventory repairInventory;
+    private final IInventory resultInventory;
+    
     private String text;
     private boolean open;
     
@@ -38,6 +47,10 @@ class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
         this.renameHandlers = renameHandlers;
         this.player = player;
         
+        repairInventory = ReflectionUtils.getFieldValue(REPAIR_INVENTORY_FIELD, this);
+        resultInventory = ReflectionUtils.getFieldValue(RESULT_INVENTORY_FIELD, this);
+        ContainerAccess containerAccess = ReflectionUtils.getFieldValue(CONTAINER_ACCESS_FIELD, this);
+        
         CraftInventoryAnvil inventory = new CraftInventoryAnvil(containerAccess.getLocation(),
             repairInventory, resultInventory, this);
         this.view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
@@ -56,7 +69,7 @@ class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
         player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.ANVIL, title));
         
         // send initial items
-        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.b, getItem(0), getItem(1), getItem(2));
+        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.a, getItem(0), getItem(1), getItem(2));
         player.playerConnection.sendPacket(new PacketPlayOutWindowItems(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
     }
     
@@ -146,7 +159,7 @@ class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
     }
     
     /**
-     * Called when both items in the {@link ContainerAnvil#repairInventory} were set to create
+     * Called when both items in the {@link AnvilInventoryImpl#repairInventory} were set to create
      * the resulting product, calculate the level cost and call the {@link PrepareAnvilEvent}.
      */
     @Override

inventoryaccess/inventory-access-r4/src/main/java/xyz/xenondevs/inventoryaccess/r4/CartographyInventoryImpl.java

@@ -1,11 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r4;
 
-import net.minecraft.server.v1_16_R2.*;
+import net.minecraft.server.v1_15_R1.*;
-import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -52,7 +52,7 @@ class CartographyInventoryImpl extends ContainerCartography implements Cartograp
         player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.CARTOGRAPHY_TABLE, title));
         
         // send initial items
-        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.b, getItem(0), getItem(1), getItem(2));
+        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.a, getItem(0), getItem(1), getItem(2));
         player.playerConnection.sendPacket(new PacketPlayOutWindowItems(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
     }
     
@@ -100,7 +100,7 @@ class CartographyInventoryImpl extends ContainerCartography implements Cartograp
     
     @Override
     public ItemStack shiftClick(EntityHuman entityhuman, int i) {
-        return ItemStack.b;
+        return ItemStack.a;
     }
     
     @Override

inventoryaccess/inventory-access-r4/src/main/java/xyz/xenondevs/inventoryaccess/r4/InventoryUtilsImpl.java

@@ -1,11 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r4;
 
-import net.minecraft.server.v1_16_R2.*;
+import net.minecraft.server.v1_15_R1.*;
-import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_16_R2.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -43,7 +42,7 @@ class InventoryUtilsImpl implements InventoryUtils {
                 if (title == null) {
                     if (iinventory instanceof ITileInventory)
                         titleComponent = ((ITileInventory) iinventory).getScoreboardDisplayName();
-                    else titleComponent = CraftChatMessage.fromString(container.getBukkitView().getTitle())[0];
+                    else titleComponent = new ChatComponentText(container.getBukkitView().getTitle());
                 } else titleComponent = createNMSComponent(title);
                 
                 entityPlayer.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, titleComponent));

inventoryaccess/inventory-access-r4/src/main/java/xyz/xenondevs/inventoryaccess/r4/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r4;
 
-import net.minecraft.server.v1_16_R2.ItemStack;
+import com.mojang.authlib.GameProfile;
-import net.minecraft.server.v1_16_R2.NBTCompressedStreamTools;
+import net.minecraft.server.v1_15_R1.ItemStack;
-import net.minecraft.server.v1_16_R2.NBTTagCompound;
+import net.minecraft.server.v1_15_R1.NBTCompressedStreamTools;
-import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftItemStack;
+import net.minecraft.server.v1_15_R1.NBTTagCompound;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -57,7 +63,7 @@ class ItemUtilsImpl implements ItemUtils {
                 nbt = NBTCompressedStreamTools.a(in);
             } else {
                 DataInputStream dataIn = new DataInputStream(in);
-                nbt = NBTCompressedStreamTools.a((DataInput) dataIn);
+                nbt = NBTCompressedStreamTools.a(dataIn);
             }
             
             ItemStack itemStack = ItemStack.a(nbt);
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r4/src/main/java/xyz/xenondevs/inventoryaccess/r4/PlayerUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r4;
 
-import net.minecraft.server.v1_16_R2.*;
+import net.minecraft.server.v1_15_R1.AdvancementDataPlayer;
-import org.bukkit.Bukkit;
+import net.minecraft.server.v1_15_R1.EntityPlayer;
-import org.bukkit.craftbukkit.v1_16_R2.CraftServer;
+import net.minecraft.server.v1_15_R1.MapIcon;
-import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
+import net.minecraft.server.v1_15_R1.PacketPlayOutMap;
+import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -19,7 +20,7 @@ import java.util.stream.Collectors;
 class PlayerUtilsImpl implements PlayerUtils {
     
     private static final Method REGISTER_LISTENERS_METHOD =
-        ReflectionUtils.getMethod(AdvancementDataPlayer.class, true, "b", AdvancementDataWorld.class);
+        ReflectionUtils.getMethod(AdvancementDataPlayer.class, true, "d");
     
     @Override
     public void stopAdvancementListening(@NotNull Player player) {
@@ -39,8 +40,7 @@ class PlayerUtilsImpl implements PlayerUtils {
     @Override
     public void startAdvancementListening(@NotNull Object player) {
         AdvancementDataPlayer advancements = ((EntityPlayer) player).getAdvancementData();
-        AdvancementDataWorld manager = ((CraftServer) Bukkit.getServer()).getServer().getAdvancementData();
+        ReflectionUtils.invokeMethod(REGISTER_LISTENERS_METHOD, advancements);
-        ReflectionUtils.invokeMethod(REGISTER_LISTENERS_METHOD, advancements, manager);
     }
     
     @Override

inventoryaccess/inventory-access-r5/pom.xml

@@ -21,7 +21,7 @@
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot</artifactId>
-            <version>1.16.4-R0.1-SNAPSHOT</version>
+            <version>1.16.1-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

inventoryaccess/inventory-access-r5/src/main/java/xyz/xenondevs/inventoryaccess/r5/AnvilInventoryImpl.java

@@ -1,11 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r5;
 
-import net.minecraft.server.v1_16_R3.*;
+import net.minecraft.server.v1_16_R1.*;
-import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_16_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;

inventoryaccess/inventory-access-r5/src/main/java/xyz/xenondevs/inventoryaccess/r5/CartographyInventoryImpl.java

@@ -1,11 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r5;
 
-import net.minecraft.server.v1_16_R3.*;
+import net.minecraft.server.v1_16_R1.*;
-import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_16_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r5/src/main/java/xyz/xenondevs/inventoryaccess/r5/InventoryUtilsImpl.java

@@ -1,11 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r5;
 
-import net.minecraft.server.v1_16_R3.*;
+import net.minecraft.server.v1_16_R1.*;
-import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_16_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_16_R3.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_16_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r5/src/main/java/xyz/xenondevs/inventoryaccess/r5/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r5;
 
-import net.minecraft.server.v1_16_R3.ItemStack;
+import com.mojang.authlib.GameProfile;
-import net.minecraft.server.v1_16_R3.NBTCompressedStreamTools;
+import net.minecraft.server.v1_16_R1.ItemStack;
-import net.minecraft.server.v1_16_R3.NBTTagCompound;
+import net.minecraft.server.v1_16_R1.NBTCompressedStreamTools;
-import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
+import net.minecraft.server.v1_16_R1.NBTTagCompound;
+import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -57,7 +63,7 @@ class ItemUtilsImpl implements ItemUtils {
                 nbt = NBTCompressedStreamTools.a(in);
             } else {
                 DataInputStream dataIn = new DataInputStream(in);
-                nbt = NBTCompressedStreamTools.a((DataInput) dataIn);
+                nbt = NBTCompressedStreamTools.a(dataIn);
             }
             
             ItemStack itemStack = ItemStack.a(nbt);
@@ -75,7 +81,7 @@ class ItemUtilsImpl implements ItemUtils {
         ReflectionUtils.setFieldValue(
             ReflectionRegistry.CB_CRAFT_META_ITEM_DISPLAY_NAME_FIELD,
             itemMeta,
-            name.serializeToJson()
+            InventoryUtilsImpl.createNMSComponent(name)
         );
     }
     
@@ -84,8 +90,14 @@ class ItemUtilsImpl implements ItemUtils {
         ReflectionUtils.setFieldValue(
             ReflectionRegistry.CB_CRAFT_META_ITEM_LORE_FIELD,
             itemMeta,
-            lore.stream().map(ComponentWrapper::serializeToJson).collect(Collectors.toList())
+            lore.stream().map(InventoryUtilsImpl::createNMSComponent).collect(Collectors.toList())
         );
     }
     
+    
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r5/src/main/java/xyz/xenondevs/inventoryaccess/r5/PlayerUtilsImpl.java

@@ -1,9 +1,9 @@
 package xyz.xenondevs.inventoryaccess.r5;
 
-import net.minecraft.server.v1_16_R3.*;
+import net.minecraft.server.v1_16_R1.*;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_16_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_16_R1.CraftServer;
-import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -45,7 +45,7 @@ class PlayerUtilsImpl implements PlayerUtils {
     
     @Override
     public void sendMapUpdate(@NotNull Player player, int mapId, byte scale, boolean locked, @Nullable MapPatch mapPatch, @Nullable List<xyz.xenondevs.inventoryaccess.map.MapIcon> icons) {
-        List<net.minecraft.server.v1_16_R3.MapIcon> decorations = icons != null
+        List<MapIcon> decorations = icons != null
             ? icons.stream().map(this::toMapDecoration).collect(Collectors.toCollection(ArrayList::new))
             : new ArrayList<>();
         

inventoryaccess/inventory-access-r6/pom.xml

@@ -13,17 +13,15 @@
     <artifactId>inventory-access-r6</artifactId>
 
     <properties>
-        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.source>11</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
+        <maven.compiler.target>11</maven.compiler.target>
-        <spigot.version>1.17-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot</artifactId>
-            <version>${spigot.version}</version>
+            <version>1.16.2-R0.1-SNAPSHOT</version>
-            <classifier>remapped-mojang</classifier>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -33,115 +31,4 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>xyz.xenondevs</groupId>
-                <artifactId>string-remapper-maven-plugin</artifactId>
-                <version>0.6</version>
-
-                <executions>
-                    <execution>
-                        <id>remap-spigot</id>
-                        <goals>
-                            <goal>remap</goal>
-                        </goals>
-                        <configuration>
-                            <remapGoal>spigot</remapGoal>
-                            <classesIn>${project.build.directory}/classes</classesIn>
-                            <classesOut>${project.build.directory}/classes-spigot</classesOut>
-                            <mapsMojang>org.spigotmc:minecraft-server:txt:maps-mojang:${spigot.version}</mapsMojang>
-                            <mapsSpigot>
-                                <classes>org.spigotmc:minecraft-server:csrg:maps-spigot:${spigot.version}</classes>
-                                <members>org.spigotmc:minecraft-server:csrg:maps-spigot-members:${spigot.version}</members>
-                            </mapsSpigot>
-                        </configuration>
-                    </execution>
-
-                    <execution>
-                        <id>remap-mojang</id>
-                        <goals>
-                            <goal>remap</goal>
-                        </goals>
-                        <configuration>
-                            <remapGoal>mojang</remapGoal>
-                            <classesIn>${project.build.directory}/classes</classesIn>
-                            <classesOut>${project.build.directory}/classes-mojang</classesOut>
-                            <mapsMojang>org.spigotmc:minecraft-server:txt:maps-mojang:${spigot.version}</mapsMojang>
-                            <mapsSpigot>
-                                <classes>org.spigotmc:minecraft-server:csrg:maps-spigot:${spigot.version}</classes>
-                                <members>org.spigotmc:minecraft-server:csrg:maps-spigot-members:${spigot.version}</members>
-                            </mapsSpigot>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jar-plugin</artifactId>
-                <version>3.2.2</version>
-                <executions>
-                    <execution>
-                        <id>default-jar</id>
-                        <phase>none</phase>
-                    </execution>
-                    <execution>
-                        <id>spigot</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                        <configuration>
-                            <classesDirectory>${project.build.directory}/classes-spigot</classesDirectory>
-                        </configuration>
-                    </execution>
-                    <execution>
-                        <id>mojang</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                        <configuration>
-                            <classesDirectory>${project.build.directory}/classes-mojang</classesDirectory>
-                            <classifier>remapped-mojang</classifier>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-
-            <plugin>
-                <groupId>net.md-5</groupId>
-                <artifactId>specialsource-maven-plugin</artifactId>
-                <version>1.2.2</version>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>remap</goal>
-                        </goals>
-                        <id>remap-obf</id>
-                        <configuration>
-                            <srgIn>org.spigotmc:minecraft-server:${spigot.version}:txt:maps-mojang</srgIn>
-                            <reverse>true</reverse>
-                            <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-mojang</remappedDependencies>
-                            <remappedArtifactAttached>false</remappedArtifactAttached>
-                            <finalName>${project.artifactId}-${project.version}-remapped-obf</finalName>
-                        </configuration>
-                    </execution>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>remap</goal>
-                        </goals>
-                        <id>remap-spigot</id>
-                        <configuration>
-                            <inputFile>${project.build.directory}/${project.artifactId}-${project.version}-remapped-obf.jar</inputFile>
-                            <srgIn>org.spigotmc:minecraft-server:${spigot.version}:csrg:maps-spigot</srgIn>
-                            <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-obf</remappedDependencies>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
 </project>

inventoryaccess/inventory-access-r6/src/main/java/xyz/xenondevs/inventoryaccess/r6/AnvilInventoryImpl.java

@@ -1,23 +1,12 @@
 package xyz.xenondevs.inventoryaccess.r6;
 
-import net.minecraft.core.BlockPos;
+import net.minecraft.server.v1_16_R2.*;
-import net.minecraft.core.NonNullList;
+import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
-import net.minecraft.network.chat.Component;
+import org.bukkit.craftbukkit.v1_16_R2.event.CraftEventFactory;
-import net.minecraft.network.protocol.game.ClientboundContainerSetContentPacket;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventoryAnvil;
-import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventoryView;
-import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftItemStack;
-import net.minecraft.server.level.ServerPlayer;
+import org.bukkit.entity.Player;
-import net.minecraft.world.Container;
-import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.inventory.AnvilMenu;
-import net.minecraft.world.inventory.ContainerLevelAccess;
-import net.minecraft.world.inventory.MenuType;
-import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -27,30 +16,30 @@ import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 import java.util.List;
 import java.util.function.Consumer;
 
-class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
+class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
     
-    private final Component title;
+    private final IChatBaseComponent title;
     private final List<Consumer<String>> renameHandlers;
     private final CraftInventoryView view;
-    private final ServerPlayer player;
+    private final EntityPlayer player;
     
     private String text;
     private boolean open;
     
-    public AnvilInventoryImpl(org.bukkit.entity.Player player, @NotNull ComponentWrapper title, List<Consumer<String>> renameHandlers) {
+    public AnvilInventoryImpl(Player player, @NotNull ComponentWrapper title, List<Consumer<String>> renameHandlers) {
         this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title), renameHandlers);
     }
     
-    public AnvilInventoryImpl(ServerPlayer player, Component title, List<Consumer<String>> renameHandlers) {
+    public AnvilInventoryImpl(EntityPlayer player, IChatBaseComponent title, List<Consumer<String>> renameHandlers) {
-        super(player.nextContainerCounter(), player.getInventory(),
+        super(player.nextContainerCounter(), player.inventory,
-            ContainerLevelAccess.create(player.level, new BlockPos(0, 0, 0)));
+            ContainerAccess.at(player.getWorld(), new BlockPosition(0, 0, 0)));
         
         this.title = title;
         this.renameHandlers = renameHandlers;
         this.player = player;
         
-        CraftInventoryAnvil inventory = new CraftInventoryAnvil(access.getLocation(),
+        CraftInventoryAnvil inventory = new CraftInventoryAnvil(containerAccess.getLocation(),
-            inputSlots, resultSlots, this);
+            repairInventory, resultInventory, this);
         this.view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
     }
     
@@ -61,33 +50,30 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         CraftEventFactory.callInventoryOpenEvent(player, this);
         
         // set active container
-        player.containerMenu = this;
+        player.activeContainer = this;
         
         // send open packet
-        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.ANVIL, title));
+        player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.ANVIL, title));
         
         // send initial items
-        NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
+        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.b, getItem(0), getItem(1), getItem(2));
-        player.connection.send(new ClientboundContainerSetContentPacket(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
+        player.playerConnection.sendPacket(new PacketPlayOutWindowItems(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
-        
-        // init menu
-        player.initMenu(this);
     }
     
     public void sendItem(int slot) {
-        player.connection.send(new ClientboundContainerSetSlotPacket(InventoryUtilsImpl.getActiveWindowId(player), slot, getItem(slot)));
+        player.playerConnection.sendPacket(new PacketPlayOutSetSlot(InventoryUtilsImpl.getActiveWindowId(player), slot, getItem(slot)));
     }
     
     public void setItem(int slot, ItemStack item) {
-        if (slot < 2) inputSlots.setItem(slot, item);
+        if (slot < 2) repairInventory.setItem(slot, item);
-        else resultSlots.setItem(0, item);
+        else resultInventory.setItem(0, item);
         
         if (open) sendItem(slot);
     }
     
     private ItemStack getItem(int slot) {
-        if (slot < 2) return inputSlots.getItem(slot);
+        if (slot < 2) return repairInventory.getItem(slot);
-        else return resultSlots.getItem(0);
+        else return resultInventory.getItem(0);
     }
     
     @Override
@@ -118,15 +104,15 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
     }
     
     /**
-     * Called every tick to see if the {@link Player} can still use that container.
+     * Called every tick to see if the {@link EntityHuman} can still use that container.
-     * (Used to for checking the distance between the {@link Player} and the container
+     * (Used to for checking the distance between the {@link EntityHuman} and the container
      * and closing the window when the distance gets too big.)
      *
-     * @param player The {@link Player}
+     * @param entityhuman The {@link EntityHuman}
-     * @return If the {@link Player} can still use that container
+     * @return If the {@link EntityHuman} can still use that container
      */
     @Override
-    public boolean stillValid(Player player) {
+    public boolean canUse(EntityHuman entityhuman) {
         return true;
     }
     
@@ -136,7 +122,7 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
      * @param s The new rename text
      */
     @Override
-    public void setItemName(String s) {
+    public void a(String s) {
         // save rename text
         text = s;
         
@@ -151,33 +137,21 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
     /**
      * Called when the container is closed to give the items back.
      *
-     * @param player The {@link Player} that closed this container
+     * @param entityhuman The {@link EntityHuman} that closed this container
      */
     @Override
-    public void removed(Player player) {
+    public void b(EntityHuman entityhuman) {
-        open = false;
-    }
-    
-    
-    /**
-     * Called when the container gets closed to put items back into a players
-     * inventory or drop them in the world.
-     *
-     * @param player    The {@link Player} that closed this container
-     * @param container The container
-     */
-    @Override
-    protected void clearContainer(Player player, Container container) {
         open = false;
+        // don't give them the items, they don't own them
     }
     
     /**
-     * Called when both items in the {@link AnvilMenu#inputSlots} were set to create
+     * Called when both items in the {@link ContainerAnvil#repairInventory} were set to create
      * the resulting product, calculate the level cost and call the {@link PrepareAnvilEvent}.
      */
     @Override
-    public void createResult() {
+    public void e() {
-        // empty
+        // no
     }
     
     

inventoryaccess/inventory-access-r6/src/main/java/xyz/xenondevs/inventoryaccess/r6/CartographyInventoryImpl.java

@@ -1,20 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r6;
 
-import net.minecraft.core.BlockPos;
+import net.minecraft.server.v1_16_R2.*;
-import net.minecraft.core.NonNullList;
+import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
-import net.minecraft.network.chat.Component;
+import org.bukkit.craftbukkit.v1_16_R2.event.CraftEventFactory;
-import net.minecraft.network.protocol.game.ClientboundContainerSetContentPacket;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventoryCartography;
-import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventoryView;
-import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftItemStack;
-import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.world.Container;
-import net.minecraft.world.inventory.*;
-import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -24,18 +15,14 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.lang.reflect.Field;
 
-class CartographyInventoryImpl extends CartographyTableMenu implements CartographyInventory {
+class CartographyInventoryImpl extends ContainerCartography implements CartographyInventory {
     
-    private static final Field RESULT_CONTAINER_FIELD = ReflectionUtils.getField(
+    private static final Field RESULT_CONTAINER_FIELD = ReflectionUtils.getField(ContainerCartography.class, true, "resultInventory");
-        CartographyTableMenu.class,
-        true,
-        "SRF(net.minecraft.world.inventory.CartographyTableMenu resultContainer)"
-    );
     
-    private final ResultContainer resultContainer = ReflectionUtils.getFieldValue(RESULT_CONTAINER_FIELD, this);
+    private final InventoryCraftResult resultInventory = ReflectionUtils.getFieldValue(RESULT_CONTAINER_FIELD, this);
-    private final Component title;
+    private final IChatBaseComponent title;
     private final CraftInventoryView view;
-    private final ServerPlayer player;
+    private final EntityPlayer player;
     
     private boolean open;
     
@@ -43,12 +30,12 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
         this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title));
     }
     
-    public CartographyInventoryImpl(ServerPlayer player, Component title) {
+    public CartographyInventoryImpl(EntityPlayer player, IChatBaseComponent title) {
-        super(player.nextContainerCounter(), player.getInventory(), ContainerLevelAccess.create(player.level, new BlockPos(0, 0, 0)));
+        super(player.nextContainerCounter(), player.inventory, ContainerAccess.at(player.getWorld(), new BlockPosition(0, 0, 0)));
         
         this.player = player;
         this.title = title;
-        CraftInventoryCartography inventory = new CraftInventoryCartography(container, resultContainer);
+        CraftInventoryCartography inventory = new CraftInventoryCartography(this.inventory, resultInventory);
         view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
     }
     
@@ -59,17 +46,14 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
         CraftEventFactory.callInventoryOpenEvent(player, this);
         
         // set active container
-        player.containerMenu = this;
+        player.activeContainer = this;
         
         // send open packet
-        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.CARTOGRAPHY_TABLE, title));
+        player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.CARTOGRAPHY_TABLE, title));
         
         // send initial items
-        NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
+        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.b, getItem(0), getItem(1), getItem(2));
-        player.connection.send(new ClientboundContainerSetContentPacket(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
+        player.playerConnection.sendPacket(new PacketPlayOutWindowItems(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
-        
-        // init menu
-        player.initMenu(this);
     }
     
     @Override
@@ -78,19 +62,19 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     public void sendItem(int slot) {
-        player.connection.send(new ClientboundContainerSetSlotPacket(InventoryUtilsImpl.getActiveWindowId(player), slot, getItem(slot)));
+        player.playerConnection.sendPacket(new PacketPlayOutSetSlot(InventoryUtilsImpl.getActiveWindowId(player), slot, getItem(slot)));
     }
     
     public void setItem(int slot, ItemStack item) {
-        if (slot < 2) container.setItem(slot, item);
+        if (slot < 2) inventory.setItem(slot, item);
-        else resultContainer.setItem(0, item);
+        else resultInventory.setItem(0, item);
         
         if (open) sendItem(slot);
     }
     
     private ItemStack getItem(int slot) {
-        if (slot < 2) return container.getItem(slot);
+        if (slot < 2) return inventory.getItem(slot);
-        else return resultContainer.getItem(0);
+        else return resultInventory.getItem(0);
     }
     
     @Override
@@ -111,26 +95,26 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     @Override
-    public void slotsChanged(Container container) {
+    public void a(IInventory inventory) {
     }
     
     @Override
-    public ItemStack quickMoveStack(net.minecraft.world.entity.player.Player entityhuman, int i) {
+    public ItemStack shiftClick(EntityHuman entityhuman, int i) {
-        return ItemStack.EMPTY;
+        return ItemStack.b;
     }
     
     @Override
-    public boolean canTakeItemForPickAll(ItemStack itemstack, Slot slot) {
+    public boolean a(ItemStack itemstack, Slot slot) {
         return true;
     }
     
     @Override
-    public boolean stillValid(net.minecraft.world.entity.player.Player entityhuman) {
+    public boolean canUse(EntityHuman entityhuman) {
         return true;
     }
     
     @Override
-    protected void clearContainer(net.minecraft.world.entity.player.Player entityhuman, Container container) {
+    public void b(EntityHuman entityHuman) {
         // empty
     }
     

inventoryaccess/inventory-access-r6/src/main/java/xyz/xenondevs/inventoryaccess/r6/InventoryUtilsImpl.java

@@ -1,17 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r6;
 
-import net.minecraft.network.chat.Component;
+import net.minecraft.server.v1_16_R2.*;
-import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
-import net.minecraft.server.level.ServerPlayer;
+import org.bukkit.craftbukkit.v1_16_R2.event.CraftEventFactory;
-import net.minecraft.world.Container;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftContainer;
-import net.minecraft.world.MenuProvider;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftInventory;
-import net.minecraft.world.inventory.AbstractContainerMenu;
+import org.bukkit.craftbukkit.v1_16_R2.util.CraftChatMessage;
-import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_17_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -21,14 +15,13 @@ import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 
 class InventoryUtilsImpl implements InventoryUtils {
     
-    public static Component createNMSComponent(ComponentWrapper component) {
+    public static IChatBaseComponent createNMSComponent(ComponentWrapper component) {
-        if (component == null) return null;
+        return IChatBaseComponent.ChatSerializer.a(component.serializeToJson());
-        return CraftChatMessage.fromJSON(component.serializeToJson());
     }
     
-    public static int getActiveWindowId(ServerPlayer player) {
+    public static int getActiveWindowId(EntityPlayer player) {
-        AbstractContainerMenu container = player.containerMenu;
+        Container container = player.activeContainer;
-        return container == null ? -1 : container.containerId;
+        return container == null ? -1 : container.windowId;
     }
     
     @Override
@@ -38,36 +31,34 @@ class InventoryUtilsImpl implements InventoryUtils {
     
     @Override
     public void openCustomInventory(@NotNull Player player, @NotNull Inventory inventory, @Nullable ComponentWrapper title) {
-        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
+        EntityPlayer entityPlayer = ((CraftPlayer) player).getHandle();
-        MenuType<?> menuType = CraftContainer.getNotchInventoryType(inventory);
+        Containers<?> windowType = CraftContainer.getNotchInventoryType(inventory);
         
-        if (serverPlayer.connection != null) {
+        if (entityPlayer.playerConnection != null) {
-            AbstractContainerMenu menu = new CraftContainer(inventory, serverPlayer, serverPlayer.nextContainerCounter());
+            Container container = new CraftContainer(inventory, entityPlayer, entityPlayer.nextContainerCounter());
-            menu = CraftEventFactory.callInventoryOpenEvent(serverPlayer, menu);
+            container = CraftEventFactory.callInventoryOpenEvent(entityPlayer, container);
-            if (menu != null) {
+            if (container != null) {
-                Container container = ((CraftInventory) inventory).getInventory();
+                IInventory iinventory = ((CraftInventory) inventory).getInventory();
-                Component titleComponent;
+                IChatBaseComponent titleComponent;
                 if (title == null) {
-                    if (container instanceof MenuProvider)
+                    if (iinventory instanceof ITileInventory)
-                        titleComponent = ((MenuProvider) container).getDisplayName();
+                        titleComponent = ((ITileInventory) iinventory).getScoreboardDisplayName();
-                    else titleComponent = CraftChatMessage.fromString(menu.getBukkitView().getTitle())[0];
+                    else titleComponent = CraftChatMessage.fromString(container.getBukkitView().getTitle())[0];
                 } else titleComponent = createNMSComponent(title);
                 
-                menu.checkReachable = false;
+                entityPlayer.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, titleComponent));
-                serverPlayer.connection.send(new ClientboundOpenScreenPacket(menu.containerId, menuType, titleComponent));
+                entityPlayer.activeContainer = container;
-                serverPlayer.containerMenu = menu;
+                entityPlayer.activeContainer.addSlotListener(entityPlayer);
-                serverPlayer.initMenu(menu);
             }
         }
-        
     }
     
     @Override
     public void updateOpenInventoryTitle(@NotNull Player player, @NotNull ComponentWrapper title) {
-        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
+        EntityPlayer entityPlayer = ((CraftPlayer) player).getHandle();
-        AbstractContainerMenu menu = serverPlayer.containerMenu;
+        Container container = entityPlayer.activeContainer;
-        serverPlayer.connection.send(new ClientboundOpenScreenPacket(menu.containerId, menu.getType(), createNMSComponent(title)));
+        entityPlayer.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, container.getType(), createNMSComponent(title)));
-        serverPlayer.initMenu(menu);
+        entityPlayer.updateInventory(container);
     }
     
 }

inventoryaccess/inventory-access-r6/src/main/java/xyz/xenondevs/inventoryaccess/r6/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r6;
 
-import net.minecraft.nbt.CompoundTag;
+import com.mojang.authlib.GameProfile;
-import net.minecraft.nbt.NbtIo;
+import net.minecraft.server.v1_16_R2.ItemStack;
-import net.minecraft.world.item.ItemStack;
+import net.minecraft.server.v1_16_R2.NBTCompressedStreamTools;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
+import net.minecraft.server.v1_16_R2.NBTTagCompound;
+import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -25,19 +31,19 @@ class ItemUtilsImpl implements ItemUtils {
     }
     
     @Override
-    public void serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, @NotNull OutputStream outputStream, boolean compressed) {
+    public void serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, @NotNull OutputStream out, boolean compressed) {
         try {
             ItemStack nmsStack = CraftItemStack.asNMSCopy(itemStack);
-            CompoundTag nbt = nmsStack.save(new CompoundTag());
+            NBTTagCompound nbt = nmsStack.save(new NBTTagCompound());
             
             if (compressed) {
-                NbtIo.writeCompressed(nbt, outputStream);
+                NBTCompressedStreamTools.a(nbt, out);
             } else {
-                DataOutputStream dataOut = new DataOutputStream(outputStream);
+                DataOutputStream dataOut = new DataOutputStream(out);
-                NbtIo.write(nbt, dataOut);
+                NBTCompressedStreamTools.a(nbt, (DataOutput) dataOut);
             }
             
-            outputStream.flush();
+            out.flush();
         } catch (IOException e) {
             e.printStackTrace();
         }
@@ -50,17 +56,17 @@ class ItemUtilsImpl implements ItemUtils {
     }
     
     @Override
-    public org.bukkit.inventory.ItemStack deserializeItemStack(@NotNull InputStream inputStream, boolean compressed) {
+    public org.bukkit.inventory.ItemStack deserializeItemStack(@NotNull InputStream in, boolean compressed) {
         try {
-            CompoundTag nbt;
+            NBTTagCompound nbt;
             if (compressed) {
-                nbt = NbtIo.readCompressed(inputStream);
+                nbt = NBTCompressedStreamTools.a(in);
             } else {
-                DataInputStream dataIn = new DataInputStream(inputStream);
+                DataInputStream dataIn = new DataInputStream(in);
-                nbt = NbtIo.read(dataIn);
+                nbt = NBTCompressedStreamTools.a((DataInput) dataIn);
             }
             
-            ItemStack itemStack = ItemStack.of(nbt);
+            ItemStack itemStack = ItemStack.a(nbt);
             
             return CraftItemStack.asCraftMirror(itemStack);
         } catch (IOException e) {
@@ -75,7 +81,7 @@ class ItemUtilsImpl implements ItemUtils {
         ReflectionUtils.setFieldValue(
             ReflectionRegistry.CB_CRAFT_META_ITEM_DISPLAY_NAME_FIELD,
             itemMeta,
-            name.serializeToJson()
+            InventoryUtilsImpl.createNMSComponent(name)
         );
     }
     
@@ -84,8 +90,13 @@ class ItemUtilsImpl implements ItemUtils {
         ReflectionUtils.setFieldValue(
             ReflectionRegistry.CB_CRAFT_META_ITEM_LORE_FIELD,
             itemMeta,
-            lore.stream().map(ComponentWrapper::serializeToJson).collect(Collectors.toList())
+            lore.stream().map(InventoryUtilsImpl::createNMSComponent).collect(Collectors.toList())
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r6/src/main/java/xyz/xenondevs/inventoryaccess/r6/PlayerUtilsImpl.java

@@ -1,23 +1,14 @@
 package xyz.xenondevs.inventoryaccess.r6;
 
-import net.minecraft.network.protocol.game.ClientboundMapItemDataPacket;
+import net.minecraft.server.v1_16_R2.*;
-import net.minecraft.network.protocol.game.ClientboundResourcePackPacket;
-import net.minecraft.server.PlayerAdvancements;
-import net.minecraft.server.ServerAdvancementManager;
-import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.world.level.saveddata.maps.MapDecoration;
-import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_17_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_16_R2.CraftServer;
-import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import xyz.xenondevs.inventoryaccess.abstraction.util.PlayerUtils;
-import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
-import xyz.xenondevs.inventoryaccess.map.MapIcon;
 import xyz.xenondevs.inventoryaccess.map.MapPatch;
-import xyz.xenondevs.inventoryaccess.util.DataUtils;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.lang.reflect.Method;
@@ -27,12 +18,8 @@ import java.util.stream.Collectors;
 
 class PlayerUtilsImpl implements PlayerUtils {
     
-    private static final Method REGISTER_LISTENERS_METHOD = ReflectionUtils.getMethod(
+    private static final Method REGISTER_LISTENERS_METHOD =
-        PlayerAdvancements.class,
+        ReflectionUtils.getMethod(AdvancementDataPlayer.class, true, "b", AdvancementDataWorld.class);
-        true,
-        "SRM(net.minecraft.server.PlayerAdvancements registerListeners)",
-        ServerAdvancementManager.class
-    );
     
     @Override
     public void stopAdvancementListening(@NotNull Player player) {
@@ -41,7 +28,7 @@ class PlayerUtilsImpl implements PlayerUtils {
     
     @Override
     public void stopAdvancementListening(@NotNull Object player) {
-        ((ServerPlayer) player).getAdvancements().stopListening();
+        ((EntityPlayer) player).getAdvancementData().a(); // stops listening
     }
     
     @Override
@@ -51,48 +38,41 @@ class PlayerUtilsImpl implements PlayerUtils {
     
     @Override
     public void startAdvancementListening(@NotNull Object player) {
-        PlayerAdvancements advancements = ((ServerPlayer) player).getAdvancements();
+        AdvancementDataPlayer advancements = ((EntityPlayer) player).getAdvancementData();
-        ServerAdvancementManager manager = ((CraftServer) Bukkit.getServer()).getServer().getAdvancements();
+        AdvancementDataWorld manager = ((CraftServer) Bukkit.getServer()).getServer().getAdvancementData();
         ReflectionUtils.invokeMethod(REGISTER_LISTENERS_METHOD, advancements, manager);
     }
     
     @Override
-    public void sendMapUpdate(@NotNull Player player, int mapId, byte scale, boolean locked, @Nullable MapPatch mapPatch, @Nullable List<MapIcon> icons) {
+    public void sendMapUpdate(@NotNull Player player, int mapId, byte scale, boolean locked, @Nullable MapPatch mapPatch, @Nullable List<xyz.xenondevs.inventoryaccess.map.MapIcon> icons) {
-        List<MapDecoration> decorations = icons != null ? icons.stream().map(this::toMapDecoration).collect(Collectors.toCollection(ArrayList::new)) : null;
+        List<MapIcon> decorations = icons != null
-        MapItemSavedData.MapPatch patch = toMapPatch(mapPatch);
+            ? icons.stream().map(this::toMapDecoration).collect(Collectors.toCollection(ArrayList::new))
-        ClientboundMapItemDataPacket packet = new ClientboundMapItemDataPacket(mapId, scale, locked, decorations, patch);
+            : new ArrayList<>();
-        ((CraftPlayer) player).getHandle().connection.send(packet);
+        
+        int width = 0;
+        int height = 0;
+        int startX = 0;
+        int startY = 0;
+        byte[] colors = new byte[0];
+        if (mapPatch != null) {
+            width = mapPatch.getWidth();
+            height = mapPatch.getHeight();
+            startX = mapPatch.getStartX();
+            startY = mapPatch.getStartY();
+            colors = mapPatch.getColors();
         }
         
-    private MapDecoration toMapDecoration(MapIcon icon) {
+        PacketPlayOutMap packet = new PacketPlayOutMap(mapId, scale, !decorations.isEmpty(), locked, decorations, colors, startX, startY, width, height);
-        return new MapDecoration(
+        ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
-            MapDecoration.Type.byIcon(icon.getType().getId()),
+    }
+    
+    private MapIcon toMapDecoration(xyz.xenondevs.inventoryaccess.map.MapIcon icon) {
+        return new MapIcon(
+            MapIcon.Type.a(icon.getType().getId()),
             icon.getX(), icon.getY(),
             icon.getRot(),
             icon.getComponent() != null ? InventoryUtilsImpl.createNMSComponent(icon.getComponent()) : null
         );
     }
     
-    private MapItemSavedData.MapPatch toMapPatch(MapPatch patch) {
-        if (patch == null) return null;
-        
-        return new MapItemSavedData.MapPatch(
-            patch.getStartX(), patch.getStartY(),
-            patch.getWidth(), patch.getHeight(),
-            patch.getColors()
-        );
-    }
-    
-    @Override
-    public void sendResourcePack(@NotNull Player player, @NotNull String url, byte[] hash, @Nullable ComponentWrapper prompt, boolean force) {
-        var serverPlayer = ((CraftPlayer) player).getHandle();
-        var packet = new ClientboundResourcePackPacket(
-            url,
-            DataUtils.toHexadecimalString(hash),
-            force,
-            InventoryUtilsImpl.createNMSComponent(prompt)
-        );
-        serverPlayer.connection.connection.send(packet);
-    }
-    
 }

inventoryaccess/inventory-access-r7/pom.xml

@@ -13,17 +13,15 @@
     <artifactId>inventory-access-r7</artifactId>
 
     <properties>
-        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.source>11</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
+        <maven.compiler.target>11</maven.compiler.target>
-        <spigot.version>1.17.1-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot</artifactId>
-            <version>${spigot.version}</version>
+            <version>1.16.4-R0.1-SNAPSHOT</version>
-            <classifier>remapped-mojang</classifier>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -33,115 +31,4 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>xyz.xenondevs</groupId>
-                <artifactId>string-remapper-maven-plugin</artifactId>
-                <version>0.6</version>
-
-                <executions>
-                    <execution>
-                        <id>remap-spigot</id>
-                        <goals>
-                            <goal>remap</goal>
-                        </goals>
-                        <configuration>
-                            <remapGoal>spigot</remapGoal>
-                            <classesIn>${project.build.directory}/classes</classesIn>
-                            <classesOut>${project.build.directory}/classes-spigot</classesOut>
-                            <mapsMojang>org.spigotmc:minecraft-server:txt:maps-mojang:${spigot.version}</mapsMojang>
-                            <mapsSpigot>
-                                <classes>org.spigotmc:minecraft-server:csrg:maps-spigot:${spigot.version}</classes>
-                                <members>org.spigotmc:minecraft-server:csrg:maps-spigot-members:${spigot.version}</members>
-                            </mapsSpigot>
-                        </configuration>
-                    </execution>
-
-                    <execution>
-                        <id>remap-mojang</id>
-                        <goals>
-                            <goal>remap</goal>
-                        </goals>
-                        <configuration>
-                            <remapGoal>mojang</remapGoal>
-                            <classesIn>${project.build.directory}/classes</classesIn>
-                            <classesOut>${project.build.directory}/classes-mojang</classesOut>
-                            <mapsMojang>org.spigotmc:minecraft-server:txt:maps-mojang:${spigot.version}</mapsMojang>
-                            <mapsSpigot>
-                                <classes>org.spigotmc:minecraft-server:csrg:maps-spigot:${spigot.version}</classes>
-                                <members>org.spigotmc:minecraft-server:csrg:maps-spigot-members:${spigot.version}</members>
-                            </mapsSpigot>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jar-plugin</artifactId>
-                <version>3.2.2</version>
-                <executions>
-                    <execution>
-                        <id>default-jar</id>
-                        <phase>none</phase>
-                    </execution>
-                    <execution>
-                        <id>spigot</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                        <configuration>
-                            <classesDirectory>${project.build.directory}/classes-spigot</classesDirectory>
-                        </configuration>
-                    </execution>
-                    <execution>
-                        <id>mojang</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                        <configuration>
-                            <classesDirectory>${project.build.directory}/classes-mojang</classesDirectory>
-                            <classifier>remapped-mojang</classifier>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-
-            <plugin>
-                <groupId>net.md-5</groupId>
-                <artifactId>specialsource-maven-plugin</artifactId>
-                <version>1.2.2</version>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>remap</goal>
-                        </goals>
-                        <id>remap-obf</id>
-                        <configuration>
-                            <srgIn>org.spigotmc:minecraft-server:${spigot.version}:txt:maps-mojang</srgIn>
-                            <reverse>true</reverse>
-                            <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-mojang</remappedDependencies>
-                            <remappedArtifactAttached>false</remappedArtifactAttached>
-                            <finalName>${project.artifactId}-${project.version}-remapped-obf</finalName>
-                        </configuration>
-                    </execution>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>remap</goal>
-                        </goals>
-                        <id>remap-spigot</id>
-                        <configuration>
-                            <inputFile>${project.build.directory}/${project.artifactId}-${project.version}-remapped-obf.jar</inputFile>
-                            <srgIn>org.spigotmc:minecraft-server:${spigot.version}:csrg:maps-spigot</srgIn>
-                            <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-obf</remappedDependencies>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
 </project>

inventoryaccess/inventory-access-r7/src/main/java/xyz/xenondevs/inventoryaccess/r7/AnvilInventoryImpl.java

@@ -1,24 +1,12 @@
 package xyz.xenondevs.inventoryaccess.r7;
 
-import net.minecraft.core.BlockPos;
+import net.minecraft.server.v1_16_R3.*;
-import net.minecraft.core.NonNullList;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
-import net.minecraft.network.chat.Component;
+import org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory;
-import net.minecraft.network.protocol.game.ClientboundContainerSetContentPacket;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventoryAnvil;
-import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventoryView;
-import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
-import net.minecraft.server.level.ServerPlayer;
+import org.bukkit.entity.Player;
-import net.minecraft.world.Container;
-import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.inventory.AbstractContainerMenu;
-import net.minecraft.world.inventory.AnvilMenu;
-import net.minecraft.world.inventory.ContainerLevelAccess;
-import net.minecraft.world.inventory.MenuType;
-import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -28,30 +16,30 @@ import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 import java.util.List;
 import java.util.function.Consumer;
 
-class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
+class AnvilInventoryImpl extends ContainerAnvil implements AnvilInventory {
     
-    private final Component title;
+    private final IChatBaseComponent title;
     private final List<Consumer<String>> renameHandlers;
     private final CraftInventoryView view;
-    private final ServerPlayer player;
+    private final EntityPlayer player;
     
     private String text;
     private boolean open;
     
-    public AnvilInventoryImpl(org.bukkit.entity.Player player, @NotNull ComponentWrapper title, List<Consumer<String>> renameHandlers) {
+    public AnvilInventoryImpl(Player player, @NotNull ComponentWrapper title, List<Consumer<String>> renameHandlers) {
         this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title), renameHandlers);
     }
     
-    public AnvilInventoryImpl(ServerPlayer player, Component title, List<Consumer<String>> renameHandlers) {
+    public AnvilInventoryImpl(EntityPlayer player, IChatBaseComponent title, List<Consumer<String>> renameHandlers) {
-        super(player.nextContainerCounter(), player.getInventory(),
+        super(player.nextContainerCounter(), player.inventory,
-            ContainerLevelAccess.create(player.level, new BlockPos(0, 0, 0)));
+            ContainerAccess.at(player.getWorld(), new BlockPosition(0, 0, 0)));
         
         this.title = title;
         this.renameHandlers = renameHandlers;
         this.player = player;
         
-        CraftInventoryAnvil inventory = new CraftInventoryAnvil(access.getLocation(),
+        CraftInventoryAnvil inventory = new CraftInventoryAnvil(containerAccess.getLocation(),
-            inputSlots, resultSlots, this);
+            repairInventory, resultInventory, this);
         this.view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
     }
     
@@ -62,38 +50,30 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         CraftEventFactory.callInventoryOpenEvent(player, this);
         
         // set active container
-        player.containerMenu = this;
+        player.activeContainer = this;
         
         // send open packet
-        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.ANVIL, title));
+        player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.ANVIL, title));
         
         // send initial items
-        NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
+        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.b, getItem(0), getItem(1), getItem(2));
-        player.connection.send(new ClientboundContainerSetContentPacket(getActiveWindowId(player), incrementStateId(), itemsList, ItemStack.EMPTY));
+        player.playerConnection.sendPacket(new PacketPlayOutWindowItems(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
-        
-        // init menu
-        player.initMenu(this);
     }
     
     public void sendItem(int slot) {
-        player.connection.send(new ClientboundContainerSetSlotPacket(getActiveWindowId(player), incrementStateId(), slot, getItem(slot)));
+        player.playerConnection.sendPacket(new PacketPlayOutSetSlot(InventoryUtilsImpl.getActiveWindowId(player), slot, getItem(slot)));
     }
     
     public void setItem(int slot, ItemStack item) {
-        if (slot < 2) inputSlots.setItem(slot, item);
+        if (slot < 2) repairInventory.setItem(slot, item);
-        else resultSlots.setItem(0, item);
+        else resultInventory.setItem(0, item);
         
         if (open) sendItem(slot);
     }
     
     private ItemStack getItem(int slot) {
-        if (slot < 2) return inputSlots.getItem(slot);
+        if (slot < 2) return repairInventory.getItem(slot);
-        else return resultSlots.getItem(0);
+        else return resultInventory.getItem(0);
-    }
-    
-    private int getActiveWindowId(ServerPlayer player) {
-        AbstractContainerMenu container = player.containerMenu;
-        return container == null ? -1 : container.containerId;
     }
     
     @Override
@@ -116,7 +96,7 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         return open;
     }
     
-    // --- AnvilMenu ---
+    // --- ContainerAnvil ---
     
     @Override
     public CraftInventoryView getBukkitView() {
@@ -124,15 +104,15 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
     }
     
     /**
-     * Called every tick to see if the {@link Player} can still use that container.
+     * Called every tick to see if the {@link EntityHuman} can still use that container.
-     * (Used to for checking the distance between the {@link Player} and the container
+     * (Used to for checking the distance between the {@link EntityHuman} and the container
      * and closing the window when the distance gets too big.)
      *
-     * @param player The {@link Player}
+     * @param entityhuman The {@link EntityHuman}
-     * @return If the {@link Player} can still use that container
+     * @return If the {@link EntityHuman} can still use that container
      */
     @Override
-    public boolean stillValid(Player player) {
+    public boolean canUse(EntityHuman entityhuman) {
         return true;
     }
     
@@ -142,7 +122,7 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
      * @param s The new rename text
      */
     @Override
-    public void setItemName(String s) {
+    public void a(String s) {
         // save rename text
         text = s;
         
@@ -157,33 +137,21 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
     /**
      * Called when the container is closed to give the items back.
      *
-     * @param player The {@link Player} that closed this container
+     * @param entityhuman The {@link EntityHuman} that closed this container
      */
     @Override
-    public void removed(Player player) {
+    public void b(EntityHuman entityhuman) {
-        open = false;
-    }
-    
-    
-    /**
-     * Called when the container gets closed to put items back into a players
-     * inventory or drop them in the world.
-     *
-     * @param player    The {@link Player} that closed this container
-     * @param container The container
-     */
-    @Override
-    protected void clearContainer(Player player, Container container) {
         open = false;
+        // don't give them the items, they don't own them
     }
     
     /**
-     * Called when both items in the {@link AnvilMenu#inputSlots} were set to create
+     * Called when both items in the {@link ContainerAnvil#repairInventory} were set to create
      * the resulting product, calculate the level cost and call the {@link PrepareAnvilEvent}.
      */
     @Override
-    public void createResult() {
+    public void e() {
-        // empty
+        // no
     }
     
     

inventoryaccess/inventory-access-r7/src/main/java/xyz/xenondevs/inventoryaccess/r7/CartographyInventoryImpl.java

@@ -1,20 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r7;
 
-import net.minecraft.core.BlockPos;
+import net.minecraft.server.v1_16_R3.*;
-import net.minecraft.core.NonNullList;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
-import net.minecraft.network.chat.Component;
+import org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory;
-import net.minecraft.network.protocol.game.ClientboundContainerSetContentPacket;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventoryCartography;
-import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventoryView;
-import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
-import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.world.Container;
-import net.minecraft.world.inventory.*;
-import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -24,18 +15,14 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.lang.reflect.Field;
 
-class CartographyInventoryImpl extends CartographyTableMenu implements CartographyInventory {
+class CartographyInventoryImpl extends ContainerCartography implements CartographyInventory {
     
-    private static final Field RESULT_CONTAINER_FIELD = ReflectionUtils.getField(
+    private static final Field RESULT_CONTAINER_FIELD = ReflectionUtils.getField(ContainerCartography.class, true, "resultInventory");
-        CartographyTableMenu.class,
-        true,
-        "SRF(net.minecraft.world.inventory.CartographyTableMenu resultContainer)"
-    );
     
-    private final ResultContainer resultContainer = ReflectionUtils.getFieldValue(RESULT_CONTAINER_FIELD, this);
+    private final InventoryCraftResult resultInventory = ReflectionUtils.getFieldValue(RESULT_CONTAINER_FIELD, this);
-    private final Component title;
+    private final IChatBaseComponent title;
     private final CraftInventoryView view;
-    private final ServerPlayer player;
+    private final EntityPlayer player;
     
     private boolean open;
     
@@ -43,12 +30,12 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
         this(((CraftPlayer) player).getHandle(), InventoryUtilsImpl.createNMSComponent(title));
     }
     
-    public CartographyInventoryImpl(ServerPlayer player, Component title) {
+    public CartographyInventoryImpl(EntityPlayer player, IChatBaseComponent title) {
-        super(player.nextContainerCounter(), player.getInventory(), ContainerLevelAccess.create(player.level, new BlockPos(0, 0, 0)));
+        super(player.nextContainerCounter(), player.inventory, ContainerAccess.at(player.getWorld(), new BlockPosition(0, 0, 0)));
         
         this.player = player;
         this.title = title;
-        CraftInventoryCartography inventory = new CraftInventoryCartography(container, resultContainer);
+        CraftInventoryCartography inventory = new CraftInventoryCartography(this.inventory, resultInventory);
         view = new CraftInventoryView(player.getBukkitEntity(), inventory, this);
     }
     
@@ -59,17 +46,14 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
         CraftEventFactory.callInventoryOpenEvent(player, this);
         
         // set active container
-        player.containerMenu = this;
+        player.activeContainer = this;
         
         // send open packet
-        player.connection.send(new ClientboundOpenScreenPacket(containerId, MenuType.CARTOGRAPHY_TABLE, title));
+        player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, Containers.CARTOGRAPHY_TABLE, title));
         
         // send initial items
-        NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
+        NonNullList<ItemStack> itemsList = NonNullList.a(ItemStack.b, getItem(0), getItem(1), getItem(2));
-        player.connection.send(new ClientboundContainerSetContentPacket(InventoryUtilsImpl.getActiveWindowId(player), incrementStateId(), itemsList, ItemStack.EMPTY));
+        player.playerConnection.sendPacket(new PacketPlayOutWindowItems(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
-        
-        // init menu
-        player.initMenu(this);
     }
     
     @Override
@@ -78,19 +62,19 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     public void sendItem(int slot) {
-        player.connection.send(new ClientboundContainerSetSlotPacket(InventoryUtilsImpl.getActiveWindowId(player), slot, incrementStateId(), getItem(slot)));
+        player.playerConnection.sendPacket(new PacketPlayOutSetSlot(InventoryUtilsImpl.getActiveWindowId(player), slot, getItem(slot)));
     }
     
     public void setItem(int slot, ItemStack item) {
-        if (slot < 2) container.setItem(slot, item);
+        if (slot < 2) inventory.setItem(slot, item);
-        else resultContainer.setItem(0, item);
+        else resultInventory.setItem(0, item);
         
         if (open) sendItem(slot);
     }
     
     private ItemStack getItem(int slot) {
-        if (slot < 2) return container.getItem(slot);
+        if (slot < 2) return inventory.getItem(slot);
-        else return resultContainer.getItem(0);
+        else return resultInventory.getItem(0);
     }
     
     @Override
@@ -111,26 +95,26 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     @Override
-    public void slotsChanged(Container container) {
+    public void a(IInventory inventory) {
     }
     
     @Override
-    public ItemStack quickMoveStack(net.minecraft.world.entity.player.Player entityhuman, int i) {
+    public ItemStack shiftClick(EntityHuman entityhuman, int i) {
-        return ItemStack.EMPTY;
+        return ItemStack.b;
     }
     
     @Override
-    public boolean canTakeItemForPickAll(ItemStack itemstack, Slot slot) {
+    public boolean a(ItemStack itemstack, Slot slot) {
         return true;
     }
     
     @Override
-    public boolean stillValid(net.minecraft.world.entity.player.Player entityhuman) {
+    public boolean canUse(EntityHuman entityhuman) {
         return true;
     }
     
     @Override
-    protected void clearContainer(net.minecraft.world.entity.player.Player entityhuman, Container container) {
+    public void b(EntityHuman entityHuman) {
         // empty
     }
     

inventoryaccess/inventory-access-r7/src/main/java/xyz/xenondevs/inventoryaccess/r7/InventoryUtilsImpl.java

@@ -1,17 +1,11 @@
 package xyz.xenondevs.inventoryaccess.r7;
 
-import net.minecraft.network.chat.Component;
+import net.minecraft.server.v1_16_R3.*;
-import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
-import net.minecraft.server.level.ServerPlayer;
+import org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory;
-import net.minecraft.world.Container;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftContainer;
-import net.minecraft.world.MenuProvider;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventory;
-import net.minecraft.world.inventory.AbstractContainerMenu;
+import org.bukkit.craftbukkit.v1_16_R3.util.CraftChatMessage;
-import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_17_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -21,14 +15,13 @@ import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 
 class InventoryUtilsImpl implements InventoryUtils {
     
-    public static Component createNMSComponent(ComponentWrapper component) {
+    public static IChatBaseComponent createNMSComponent(ComponentWrapper component) {
-        if (component == null) return null;
+        return IChatBaseComponent.ChatSerializer.a(component.serializeToJson());
-        return CraftChatMessage.fromJSON(component.serializeToJson());
     }
     
-    public static int getActiveWindowId(ServerPlayer player) {
+    public static int getActiveWindowId(EntityPlayer player) {
-        AbstractContainerMenu container = player.containerMenu;
+        Container container = player.activeContainer;
-        return container == null ? -1 : container.containerId;
+        return container == null ? -1 : container.windowId;
     }
     
     @Override
@@ -38,36 +31,34 @@ class InventoryUtilsImpl implements InventoryUtils {
     
     @Override
     public void openCustomInventory(@NotNull Player player, @NotNull Inventory inventory, @Nullable ComponentWrapper title) {
-        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
+        EntityPlayer entityPlayer = ((CraftPlayer) player).getHandle();
-        MenuType<?> menuType = CraftContainer.getNotchInventoryType(inventory);
+        Containers<?> windowType = CraftContainer.getNotchInventoryType(inventory);
         
-        if (serverPlayer.connection != null) {
+        if (entityPlayer.playerConnection != null) {
-            AbstractContainerMenu menu = new CraftContainer(inventory, serverPlayer, serverPlayer.nextContainerCounter());
+            Container container = new CraftContainer(inventory, entityPlayer, entityPlayer.nextContainerCounter());
-            menu = CraftEventFactory.callInventoryOpenEvent(serverPlayer, menu);
+            container = CraftEventFactory.callInventoryOpenEvent(entityPlayer, container);
-            if (menu != null) {
+            if (container != null) {
-                Container container = ((CraftInventory) inventory).getInventory();
+                IInventory iinventory = ((CraftInventory) inventory).getInventory();
-                Component titleComponent;
+                IChatBaseComponent titleComponent;
                 if (title == null) {
-                    if (container instanceof MenuProvider)
+                    if (iinventory instanceof ITileInventory)
-                        titleComponent = ((MenuProvider) container).getDisplayName();
+                        titleComponent = ((ITileInventory) iinventory).getScoreboardDisplayName();
-                    else titleComponent = CraftChatMessage.fromString(menu.getBukkitView().getTitle())[0];
+                    else titleComponent = CraftChatMessage.fromString(container.getBukkitView().getTitle())[0];
                 } else titleComponent = createNMSComponent(title);
                 
-                menu.checkReachable = false;
+                entityPlayer.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, titleComponent));
-                serverPlayer.connection.send(new ClientboundOpenScreenPacket(menu.containerId, menuType, titleComponent));
+                entityPlayer.activeContainer = container;
-                serverPlayer.containerMenu = menu;
+                entityPlayer.activeContainer.addSlotListener(entityPlayer);
-                serverPlayer.initMenu(menu);
             }
         }
-        
     }
     
     @Override
     public void updateOpenInventoryTitle(@NotNull Player player, @NotNull ComponentWrapper title) {
-        ServerPlayer serverPlayer = ((CraftPlayer) player).getHandle();
+        EntityPlayer entityPlayer = ((CraftPlayer) player).getHandle();
-        AbstractContainerMenu menu = serverPlayer.containerMenu;
+        Container container = entityPlayer.activeContainer;
-        serverPlayer.connection.send(new ClientboundOpenScreenPacket(menu.containerId, menu.getType(), createNMSComponent(title)));
+        entityPlayer.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, container.getType(), createNMSComponent(title)));
-        serverPlayer.initMenu(menu);
+        entityPlayer.updateInventory(container);
     }
     
 }

inventoryaccess/inventory-access-r7/src/main/java/xyz/xenondevs/inventoryaccess/r7/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r7;
 
-import net.minecraft.nbt.CompoundTag;
+import com.mojang.authlib.GameProfile;
-import net.minecraft.nbt.NbtIo;
+import net.minecraft.server.v1_16_R3.ItemStack;
-import net.minecraft.world.item.ItemStack;
+import net.minecraft.server.v1_16_R3.NBTCompressedStreamTools;
-import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
+import net.minecraft.server.v1_16_R3.NBTTagCompound;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -25,19 +31,19 @@ class ItemUtilsImpl implements ItemUtils {
     }
     
     @Override
-    public void serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, @NotNull OutputStream outputStream, boolean compressed) {
+    public void serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, @NotNull OutputStream out, boolean compressed) {
         try {
             ItemStack nmsStack = CraftItemStack.asNMSCopy(itemStack);
-            CompoundTag nbt = nmsStack.save(new CompoundTag());
+            NBTTagCompound nbt = nmsStack.save(new NBTTagCompound());
             
             if (compressed) {
-                NbtIo.writeCompressed(nbt, outputStream);
+                NBTCompressedStreamTools.a(nbt, out);
             } else {
-                DataOutputStream dataOut = new DataOutputStream(outputStream);
+                DataOutputStream dataOut = new DataOutputStream(out);
-                NbtIo.write(nbt, dataOut);
+                NBTCompressedStreamTools.a(nbt, (DataOutput) dataOut);
             }
             
-            outputStream.flush();
+            out.flush();
         } catch (IOException e) {
             e.printStackTrace();
         }
@@ -50,17 +56,17 @@ class ItemUtilsImpl implements ItemUtils {
     }
     
     @Override
-    public org.bukkit.inventory.ItemStack deserializeItemStack(@NotNull InputStream inputStream, boolean compressed) {
+    public org.bukkit.inventory.ItemStack deserializeItemStack(@NotNull InputStream in, boolean compressed) {
         try {
-            CompoundTag nbt;
+            NBTTagCompound nbt;
             if (compressed) {
-                nbt = NbtIo.readCompressed(inputStream);
+                nbt = NBTCompressedStreamTools.a(in);
             } else {
-                DataInputStream dataIn = new DataInputStream(inputStream);
+                DataInputStream dataIn = new DataInputStream(in);
-                nbt = NbtIo.read(dataIn);
+                nbt = NBTCompressedStreamTools.a((DataInput) dataIn);
             }
             
-            ItemStack itemStack = ItemStack.of(nbt);
+            ItemStack itemStack = ItemStack.a(nbt);
             
             return CraftItemStack.asCraftMirror(itemStack);
         } catch (IOException e) {
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r7/src/main/java/xyz/xenondevs/inventoryaccess/r7/PlayerUtilsImpl.java

@@ -1,23 +1,14 @@
 package xyz.xenondevs.inventoryaccess.r7;
 
-import net.minecraft.network.protocol.game.ClientboundMapItemDataPacket;
+import net.minecraft.server.v1_16_R3.*;
-import net.minecraft.network.protocol.game.ClientboundResourcePackPacket;
-import net.minecraft.server.PlayerAdvancements;
-import net.minecraft.server.ServerAdvancementManager;
-import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.world.level.saveddata.maps.MapDecoration;
-import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_17_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_16_R3.CraftServer;
-import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import xyz.xenondevs.inventoryaccess.abstraction.util.PlayerUtils;
-import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
-import xyz.xenondevs.inventoryaccess.map.MapIcon;
 import xyz.xenondevs.inventoryaccess.map.MapPatch;
-import xyz.xenondevs.inventoryaccess.util.DataUtils;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.lang.reflect.Method;
@@ -27,12 +18,8 @@ import java.util.stream.Collectors;
 
 class PlayerUtilsImpl implements PlayerUtils {
     
-    private static final Method REGISTER_LISTENERS_METHOD = ReflectionUtils.getMethod(
+    private static final Method REGISTER_LISTENERS_METHOD =
-        PlayerAdvancements.class,
+        ReflectionUtils.getMethod(AdvancementDataPlayer.class, true, "b", AdvancementDataWorld.class);
-        true,
-        "SRM(net.minecraft.server.PlayerAdvancements registerListeners)",
-        ServerAdvancementManager.class
-    );
     
     @Override
     public void stopAdvancementListening(@NotNull Player player) {
@@ -41,7 +28,7 @@ class PlayerUtilsImpl implements PlayerUtils {
     
     @Override
     public void stopAdvancementListening(@NotNull Object player) {
-        ((ServerPlayer) player).getAdvancements().stopListening();
+        ((EntityPlayer) player).getAdvancementData().a(); // stops listening
     }
     
     @Override
@@ -51,48 +38,41 @@ class PlayerUtilsImpl implements PlayerUtils {
     
     @Override
     public void startAdvancementListening(@NotNull Object player) {
-        PlayerAdvancements advancements = ((ServerPlayer) player).getAdvancements();
+        AdvancementDataPlayer advancements = ((EntityPlayer) player).getAdvancementData();
-        ServerAdvancementManager manager = ((CraftServer) Bukkit.getServer()).getServer().getAdvancements();
+        AdvancementDataWorld manager = ((CraftServer) Bukkit.getServer()).getServer().getAdvancementData();
         ReflectionUtils.invokeMethod(REGISTER_LISTENERS_METHOD, advancements, manager);
     }
     
     @Override
-    public void sendMapUpdate(@NotNull Player player, int mapId, byte scale, boolean locked, @Nullable MapPatch mapPatch, @Nullable List<MapIcon> icons) {
+    public void sendMapUpdate(@NotNull Player player, int mapId, byte scale, boolean locked, @Nullable MapPatch mapPatch, @Nullable List<xyz.xenondevs.inventoryaccess.map.MapIcon> icons) {
-        List<MapDecoration> decorations = icons != null ? icons.stream().map(this::toMapDecoration).collect(Collectors.toCollection(ArrayList::new)) : null;
+        List<net.minecraft.server.v1_16_R3.MapIcon> decorations = icons != null
-        MapItemSavedData.MapPatch patch = toMapPatch(mapPatch);
+            ? icons.stream().map(this::toMapDecoration).collect(Collectors.toCollection(ArrayList::new))
-        ClientboundMapItemDataPacket packet = new ClientboundMapItemDataPacket(mapId, scale, locked, decorations, patch);
+            : new ArrayList<>();
-        ((CraftPlayer) player).getHandle().connection.send(packet);
+        
+        int width = 0;
+        int height = 0;
+        int startX = 0;
+        int startY = 0;
+        byte[] colors = new byte[0];
+        if (mapPatch != null) {
+            width = mapPatch.getWidth();
+            height = mapPatch.getHeight();
+            startX = mapPatch.getStartX();
+            startY = mapPatch.getStartY();
+            colors = mapPatch.getColors();
         }
         
-    private MapDecoration toMapDecoration(MapIcon icon) {
+        PacketPlayOutMap packet = new PacketPlayOutMap(mapId, scale, !decorations.isEmpty(), locked, decorations, colors, startX, startY, width, height);
-        return new MapDecoration(
+        ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
-            MapDecoration.Type.byIcon(icon.getType().getId()),
+    }
+    
+    private MapIcon toMapDecoration(xyz.xenondevs.inventoryaccess.map.MapIcon icon) {
+        return new MapIcon(
+            MapIcon.Type.a(icon.getType().getId()),
             icon.getX(), icon.getY(),
             icon.getRot(),
             icon.getComponent() != null ? InventoryUtilsImpl.createNMSComponent(icon.getComponent()) : null
         );
     }
     
-    private MapItemSavedData.MapPatch toMapPatch(MapPatch patch) {
-        if (patch == null) return null;
-        
-        return new MapItemSavedData.MapPatch(
-            patch.getStartX(), patch.getStartY(),
-            patch.getWidth(), patch.getHeight(),
-            patch.getColors()
-        );
-    }
-    
-    @Override
-    public void sendResourcePack(@NotNull Player player, @NotNull String url, byte[] hash, @Nullable ComponentWrapper prompt, boolean force) {
-        var serverPlayer = ((CraftPlayer) player).getHandle();
-        var packet = new ClientboundResourcePackPacket(
-            url,
-            DataUtils.toHexadecimalString(hash),
-            force,
-            InventoryUtilsImpl.createNMSComponent(prompt)
-        );
-        serverPlayer.connection.connection.send(packet);
-    }
-    
 }

inventoryaccess/inventory-access-r8/pom.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>xyz.xenondevs.invui</groupId>
@@ -15,7 +15,7 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
-        <spigot.version>1.18-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.17-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>
@@ -36,9 +36,9 @@
     <build>
         <plugins>
             <plugin>
-                <groupId>xyz.xenondevs.string-remapper</groupId>
+                <groupId>xyz.xenondevs</groupId>
                 <artifactId>string-remapper-maven-plugin</artifactId>
-                <version>1.2</version>
+                <version>0.6</version>
 
                 <executions>
                     <execution>
@@ -47,10 +47,14 @@
                             <goal>remap</goal>
                         </goals>
                         <configuration>
-                            <spigotVersion>${spigot.version}</spigotVersion>
+                            <remapGoal>spigot</remapGoal>
-                            <goal>spigot</goal>
                             <classesIn>${project.build.directory}/classes</classesIn>
                             <classesOut>${project.build.directory}/classes-spigot</classesOut>
+                            <mapsMojang>org.spigotmc:minecraft-server:txt:maps-mojang:${spigot.version}</mapsMojang>
+                            <mapsSpigot>
+                                <classes>org.spigotmc:minecraft-server:csrg:maps-spigot:${spigot.version}</classes>
+                                <members>org.spigotmc:minecraft-server:csrg:maps-spigot-members:${spigot.version}</members>
+                            </mapsSpigot>
                         </configuration>
                     </execution>
 
@@ -60,10 +64,14 @@
                             <goal>remap</goal>
                         </goals>
                         <configuration>
-                            <spigotVersion>${spigot.version}</spigotVersion>
+                            <remapGoal>mojang</remapGoal>
-                            <goal>mojang</goal>
                             <classesIn>${project.build.directory}/classes</classesIn>
                             <classesOut>${project.build.directory}/classes-mojang</classesOut>
+                            <mapsMojang>org.spigotmc:minecraft-server:txt:maps-mojang:${spigot.version}</mapsMojang>
+                            <mapsSpigot>
+                                <classes>org.spigotmc:minecraft-server:csrg:maps-spigot:${spigot.version}</classes>
+                                <members>org.spigotmc:minecraft-server:csrg:maps-spigot-members:${spigot.version}</members>
+                            </mapsSpigot>
                         </configuration>
                     </execution>
                 </executions>

inventoryaccess/inventory-access-r8/src/main/java/xyz/xenondevs/inventoryaccess/r8/AnvilInventoryImpl.java

@@ -9,16 +9,15 @@ import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.AnvilMenu;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_18_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -69,14 +68,14 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         
         // send initial items
         NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
-        player.connection.send(new ClientboundContainerSetContentPacket(getActiveWindowId(player), incrementStateId(), itemsList, ItemStack.EMPTY));
+        player.connection.send(new ClientboundContainerSetContentPacket(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
         
         // init menu
         player.initMenu(this);
     }
     
     public void sendItem(int slot) {
-        player.connection.send(new ClientboundContainerSetSlotPacket(getActiveWindowId(player), incrementStateId(), slot, getItem(slot)));
+        player.connection.send(new ClientboundContainerSetSlotPacket(InventoryUtilsImpl.getActiveWindowId(player), slot, getItem(slot)));
     }
     
     public void setItem(int slot, ItemStack item) {
@@ -91,11 +90,6 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         else return resultSlots.getItem(0);
     }
     
-    private int getActiveWindowId(ServerPlayer player) {
-        AbstractContainerMenu container = player.containerMenu;
-        return container == null ? -1 : container.containerId;
-    }
-    
     @Override
     public void setItem(int slot, org.bukkit.inventory.ItemStack itemStack) {
         setItem(slot, CraftItemStack.asNMSCopy(itemStack));
@@ -116,7 +110,7 @@ class AnvilInventoryImpl extends AnvilMenu implements AnvilInventory {
         return open;
     }
     
-    // --- AnvilMenu ---
+    // --- ContainerAnvil ---
     
     @Override
     public CraftInventoryView getBukkitView() {

inventoryaccess/inventory-access-r8/src/main/java/xyz/xenondevs/inventoryaccess/r8/CartographyInventoryImpl.java

@@ -10,11 +10,11 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_18_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
@@ -66,7 +66,7 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
         
         // send initial items
         NonNullList<ItemStack> itemsList = NonNullList.of(ItemStack.EMPTY, getItem(0), getItem(1), getItem(2));
-        player.connection.send(new ClientboundContainerSetContentPacket(InventoryUtilsImpl.getActiveWindowId(player), incrementStateId(), itemsList, ItemStack.EMPTY));
+        player.connection.send(new ClientboundContainerSetContentPacket(InventoryUtilsImpl.getActiveWindowId(player), itemsList));
         
         // init menu
         player.initMenu(this);
@@ -78,7 +78,7 @@ class CartographyInventoryImpl extends CartographyTableMenu implements Cartograp
     }
     
     public void sendItem(int slot) {
-        player.connection.send(new ClientboundContainerSetSlotPacket(InventoryUtilsImpl.getActiveWindowId(player), slot, incrementStateId(), getItem(slot)));
+        player.connection.send(new ClientboundContainerSetSlotPacket(InventoryUtilsImpl.getActiveWindowId(player), slot, getItem(slot)));
     }
     
     public void setItem(int slot, ItemStack item) {

inventoryaccess/inventory-access-r8/src/main/java/xyz/xenondevs/inventoryaccess/r8/InventoryUtilsImpl.java

@@ -7,11 +7,11 @@ import net.minecraft.world.Container;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_18_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_18_R1.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_17_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r8/src/main/java/xyz/xenondevs/inventoryaccess/r8/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r8;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtIo;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_18_R1.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );   
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r8/src/main/java/xyz/xenondevs/inventoryaccess/r8/PlayerUtilsImpl.java

@@ -8,8 +8,8 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_18_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_17_R1.CraftServer;
-import org.bukkit.craftbukkit.v1_18_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -30,7 +30,7 @@ class PlayerUtilsImpl implements PlayerUtils {
     private static final Method REGISTER_LISTENERS_METHOD = ReflectionUtils.getMethod(
         PlayerAdvancements.class,
         true,
-        "ASRM(net/minecraft/server/PlayerAdvancements.registerListeners(Lnet/minecraft/server/ServerAdvancementManager;)V)",
+        "SRM(net.minecraft.server.PlayerAdvancements registerListeners)",
         ServerAdvancementManager.class
     );
     

inventoryaccess/inventory-access-r9/pom.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>xyz.xenondevs.invui</groupId>
@@ -15,7 +15,7 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
-        <spigot.version>1.18.2-R0.1-SNAPSHOT</spigot.version>
+        <spigot.version>1.17.1-R0.1-SNAPSHOT</spigot.version>
     </properties>
 
     <dependencies>
@@ -36,9 +36,9 @@
     <build>
         <plugins>
             <plugin>
-                <groupId>xyz.xenondevs.string-remapper</groupId>
+                <groupId>xyz.xenondevs</groupId>
                 <artifactId>string-remapper-maven-plugin</artifactId>
-                <version>1.2</version>
+                <version>0.6</version>
 
                 <executions>
                     <execution>
@@ -47,10 +47,14 @@
                             <goal>remap</goal>
                         </goals>
                         <configuration>
-                            <spigotVersion>${spigot.version}</spigotVersion>
+                            <remapGoal>spigot</remapGoal>
-                            <goal>spigot</goal>
                             <classesIn>${project.build.directory}/classes</classesIn>
                             <classesOut>${project.build.directory}/classes-spigot</classesOut>
+                            <mapsMojang>org.spigotmc:minecraft-server:txt:maps-mojang:${spigot.version}</mapsMojang>
+                            <mapsSpigot>
+                                <classes>org.spigotmc:minecraft-server:csrg:maps-spigot:${spigot.version}</classes>
+                                <members>org.spigotmc:minecraft-server:csrg:maps-spigot-members:${spigot.version}</members>
+                            </mapsSpigot>
                         </configuration>
                     </execution>
 
@@ -60,10 +64,14 @@
                             <goal>remap</goal>
                         </goals>
                         <configuration>
-                            <spigotVersion>${spigot.version}</spigotVersion>
+                            <remapGoal>mojang</remapGoal>
-                            <goal>mojang</goal>
                             <classesIn>${project.build.directory}/classes</classesIn>
                             <classesOut>${project.build.directory}/classes-mojang</classesOut>
+                            <mapsMojang>org.spigotmc:minecraft-server:txt:maps-mojang:${spigot.version}</mapsMojang>
+                            <mapsSpigot>
+                                <classes>org.spigotmc:minecraft-server:csrg:maps-spigot:${spigot.version}</classes>
+                                <members>org.spigotmc:minecraft-server:csrg:maps-spigot-members:${spigot.version}</members>
+                            </mapsSpigot>
                         </configuration>
                     </execution>
                 </executions>

inventoryaccess/inventory-access-r9/src/main/java/xyz/xenondevs/inventoryaccess/r9/AnvilInventoryImpl.java

@@ -14,11 +14,11 @@ import net.minecraft.world.inventory.AnvilMenu;
 import net.minecraft.world.inventory.ContainerLevelAccess;
 import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_18_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventoryAnvil;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryAnvil;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.event.inventory.PrepareAnvilEvent;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r9/src/main/java/xyz/xenondevs/inventoryaccess/r9/CartographyInventoryImpl.java

@@ -10,11 +10,11 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.Container;
 import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_18_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventoryCartography;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryCartography;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventoryView;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r9/src/main/java/xyz/xenondevs/inventoryaccess/r9/InventoryUtilsImpl.java

@@ -7,11 +7,11 @@ import net.minecraft.world.Container;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.MenuType;
-import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_18_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_17_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftContainer;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftContainer;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventory;
-import org.bukkit.craftbukkit.v1_18_R2.util.CraftChatMessage;
+import org.bukkit.craftbukkit.v1_17_R1.util.CraftChatMessage;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;

inventoryaccess/inventory-access-r9/src/main/java/xyz/xenondevs/inventoryaccess/r9/ItemUtilsImpl.java

@@ -1,9 +1,10 @@
 package xyz.xenondevs.inventoryaccess.r9;
 
+import com.mojang.authlib.GameProfile;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtIo;
 import net.minecraft.world.item.ItemStack;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
 import xyz.xenondevs.inventoryaccess.abstraction.util.ItemUtils;
@@ -12,11 +13,16 @@ import xyz.xenondevs.inventoryaccess.util.ReflectionRegistry;
 import xyz.xenondevs.inventoryaccess.util.ReflectionUtils;
 
 import java.io.*;
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.stream.Collectors;
 
 class ItemUtilsImpl implements ItemUtils {
     
+    private static final Method CRAFT_META_SKULL_SET_PROFILE_METHOD = ReflectionUtils.getMethod(
+        ReflectionRegistry.CB_CRAFT_META_SKULL_CLASS, true, "setProfile", GameProfile.class
+    );    
+    
     @Override
     public byte[] serializeItemStack(org.bukkit.inventory.@NotNull ItemStack itemStack, boolean compressed) {
         ByteArrayOutputStream out = new ByteArrayOutputStream();
@@ -88,4 +94,9 @@ class ItemUtilsImpl implements ItemUtils {
         );
     }
     
+    @Override
+    public void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile) {
+        ReflectionUtils.invokeMethod(CRAFT_META_SKULL_SET_PROFILE_METHOD, itemMeta, gameProfile);
+    }
+    
 }

inventoryaccess/inventory-access-r9/src/main/java/xyz/xenondevs/inventoryaccess/r9/PlayerUtilsImpl.java

@@ -8,8 +8,8 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.level.saveddata.maps.MapDecoration;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_18_R2.CraftServer;
+import org.bukkit.craftbukkit.v1_17_R1.CraftServer;
-import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -30,7 +30,7 @@ class PlayerUtilsImpl implements PlayerUtils {
     private static final Method REGISTER_LISTENERS_METHOD = ReflectionUtils.getMethod(
         PlayerAdvancements.class,
         true,
-        "ASRM(net/minecraft/server/PlayerAdvancements.registerListeners(Lnet/minecraft/server/ServerAdvancementManager;)V)",
+        "SRM(net.minecraft.server.PlayerAdvancements registerListeners)",
         ServerAdvancementManager.class
     );
     

inventoryaccess/inventory-access/src/main/java/xyz/xenondevs/inventoryaccess/abstraction/util/ItemUtils.java

@@ -1,5 +1,6 @@
 package xyz.xenondevs.inventoryaccess.abstraction.util;
 
+import com.mojang.authlib.GameProfile;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
@@ -67,4 +68,12 @@ public interface ItemUtils {
      */
     void setLore(@NotNull ItemMeta itemMeta, @NotNull List<@NotNull ComponentWrapper> lore);
     
+    /**
+     * Sets the game profile of a player skull, thereby changing its owner and texture.
+     * 
+     * @param itemMeta The {@link ItemMeta} of the skull
+     * @param gameProfile The game profile to apply to the skull
+     */
+    void setSkullGameProfile(@NotNull ItemMeta itemMeta, @NotNull GameProfile gameProfile);
+    
 }