diff --git a/src/com/lishid/openinv/internal/v1_8_R3/AnySilentChest.java b/src/com/lishid/openinv/internal/v1_9_R1/AnySilentChest.java
similarity index 84%
rename from src/com/lishid/openinv/internal/v1_8_R3/AnySilentChest.java
rename to src/com/lishid/openinv/internal/v1_9_R1/AnySilentChest.java
index 4c2445e..519a472 100644
--- a/src/com/lishid/openinv/internal/v1_8_R3/AnySilentChest.java
+++ b/src/com/lishid/openinv/internal/v1_9_R1/AnySilentChest.java
@@ -14,7 +14,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.lishid.openinv.internal.v1_8_R3;
+package com.lishid.openinv.internal.v1_9_R1;
 
 import org.bukkit.ChatColor;
 import org.bukkit.entity.Player;
@@ -23,17 +23,17 @@ import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.internal.IAnySilentChest;
 
 //Volatile
-import org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_9_R1.entity.CraftPlayer;
 
-import net.minecraft.server.v1_8_R3.Block;
-import net.minecraft.server.v1_8_R3.BlockPosition;
-import net.minecraft.server.v1_8_R3.EntityPlayer;
-import net.minecraft.server.v1_8_R3.IInventory;
-import net.minecraft.server.v1_8_R3.ITileInventory;
-import net.minecraft.server.v1_8_R3.InventoryLargeChest;
-import net.minecraft.server.v1_8_R3.PacketPlayOutOpenWindow;
-import net.minecraft.server.v1_8_R3.TileEntityChest;
-import net.minecraft.server.v1_8_R3.World;
+import net.minecraft.server.v1_9_R1.Block;
+import net.minecraft.server.v1_9_R1.BlockPosition;
+import net.minecraft.server.v1_9_R1.EntityPlayer;
+import net.minecraft.server.v1_9_R1.IInventory;
+import net.minecraft.server.v1_9_R1.ITileInventory;
+import net.minecraft.server.v1_9_R1.InventoryLargeChest;
+import net.minecraft.server.v1_9_R1.PacketPlayOutOpenWindow;
+import net.minecraft.server.v1_9_R1.TileEntityChest;
+import net.minecraft.server.v1_9_R1.World;
 
 public class AnySilentChest implements IAnySilentChest {
     @Override
@@ -42,19 +42,19 @@ public class AnySilentChest implements IAnySilentChest {
         EntityPlayer player = ((CraftPlayer) p).getHandle();
         World world = player.world;
         // If block on top
-        if (world.getType(new BlockPosition(x, y + 1, z)).getBlock().c())
+        if (world.getType(new BlockPosition(x, y + 1, z)).l())
             return true;
 
         int id = Block.getId(world.getType(new BlockPosition(x, y, z)).getBlock());
 
         // If block next to chest is chest and has a block on top
-        if ((Block.getId(world.getType(new BlockPosition(x - 1, y, z)).getBlock()) == id) && (world.getType(new BlockPosition(x - 1, y + 1, z)).getBlock().c()))
+        if ((Block.getId(world.getType(new BlockPosition(x - 1, y, z)).getBlock()) == id) && (world.getType(new BlockPosition(x - 1, y + 1, z)).l()))
             return true;
-        if ((Block.getId(world.getType(new BlockPosition(x + 1, y, z)).getBlock()) == id) && (world.getType(new BlockPosition(x + 1, y + 1, z)).getBlock().c()))
+        if ((Block.getId(world.getType(new BlockPosition(x + 1, y, z)).getBlock()) == id) && (world.getType(new BlockPosition(x + 1, y + 1, z)).l()))
             return true;
-        if ((Block.getId(world.getType(new BlockPosition(x, y, z - 1)).getBlock()) == id) && (world.getType(new BlockPosition(x, y + 1, z - 1)).getBlock().c()))
+        if ((Block.getId(world.getType(new BlockPosition(x, y, z - 1)).getBlock()) == id) && (world.getType(new BlockPosition(x, y + 1, z - 1)).l()))
             return true;
-        if ((Block.getId(world.getType(new BlockPosition(x, y, z + 1)).getBlock()) == id) && (world.getType(new BlockPosition(x, y + 1, z + 1)).getBlock().c()))
+        if ((Block.getId(world.getType(new BlockPosition(x, y, z + 1)).getBlock()) == id) && (world.getType(new BlockPosition(x, y + 1, z + 1)).l()))
             return true;
 
         return false;
@@ -71,15 +71,15 @@ public class AnySilentChest implements IAnySilentChest {
         int id = Block.getId(world.getType(new BlockPosition(x, y, z)).getBlock());
 
         if (!anychest) {
-            if (world.getType(new BlockPosition(x, y + 1, z)).getBlock().c())
+            if (world.getType(new BlockPosition(x, y + 1, z)).l())
                 return true;
-            if ((Block.getId(world.getType(new BlockPosition(x - 1, y, z)).getBlock()) == id) && (world.getType(new BlockPosition(x - 1, y + 1, z)).getBlock().c()))
+            if ((Block.getId(world.getType(new BlockPosition(x - 1, y, z)).getBlock()) == id) && (world.getType(new BlockPosition(x - 1, y + 1, z)).l()))
                 return true;
-            if ((Block.getId(world.getType(new BlockPosition(x + 1, y, z)).getBlock()) == id) && (world.getType(new BlockPosition(x + 1, y + 1, z)).getBlock().c()))
+            if ((Block.getId(world.getType(new BlockPosition(x + 1, y, z)).getBlock()) == id) && (world.getType(new BlockPosition(x + 1, y + 1, z)).l()))
                 return true;
-            if ((Block.getId(world.getType(new BlockPosition(x, y, z - 1)).getBlock()) == id) && (world.getType(new BlockPosition(x, y + 1, z - 1)).getBlock().c()))
+            if ((Block.getId(world.getType(new BlockPosition(x, y, z - 1)).getBlock()) == id) && (world.getType(new BlockPosition(x, y + 1, z - 1)).l()))
                 return true;
-            if ((Block.getId(world.getType(new BlockPosition(x, y, z + 1)).getBlock()) == id) && (world.getType(new BlockPosition(x, y + 1, z + 1)).getBlock().c()))
+            if ((Block.getId(world.getType(new BlockPosition(x, y, z + 1)).getBlock()) == id) && (world.getType(new BlockPosition(x, y + 1, z + 1)).l()))
                 return true;
         }
 
diff --git a/src/com/lishid/openinv/internal/v1_8_R3/InventoryAccess.java b/src/com/lishid/openinv/internal/v1_9_R1/InventoryAccess.java
similarity index 93%
rename from src/com/lishid/openinv/internal/v1_8_R3/InventoryAccess.java
rename to src/com/lishid/openinv/internal/v1_9_R1/InventoryAccess.java
index c52d35e..dc9164d 100644
--- a/src/com/lishid/openinv/internal/v1_8_R3/InventoryAccess.java
+++ b/src/com/lishid/openinv/internal/v1_9_R1/InventoryAccess.java
@@ -14,7 +14,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.lishid.openinv.internal.v1_8_R3;
+package com.lishid.openinv.internal.v1_9_R1;
 
 import java.lang.reflect.Field;
 
@@ -26,9 +26,9 @@ import com.lishid.openinv.Permissions;
 import com.lishid.openinv.internal.IInventoryAccess;
 
 //Volatile
-import org.bukkit.craftbukkit.v1_8_R3.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_9_R1.inventory.CraftInventory;
 
-import net.minecraft.server.v1_8_R3.IInventory;
+import net.minecraft.server.v1_9_R1.IInventory;
 
 public class InventoryAccess implements IInventoryAccess {
     @Override
diff --git a/src/com/lishid/openinv/internal/v1_8_R3/PlayerDataManager.java b/src/com/lishid/openinv/internal/v1_9_R1/PlayerDataManager.java
similarity index 94%
rename from src/com/lishid/openinv/internal/v1_8_R3/PlayerDataManager.java
rename to src/com/lishid/openinv/internal/v1_9_R1/PlayerDataManager.java
index 993ea4a..73c15dd 100644
--- a/src/com/lishid/openinv/internal/v1_8_R3/PlayerDataManager.java
+++ b/src/com/lishid/openinv/internal/v1_9_R1/PlayerDataManager.java
@@ -14,7 +14,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.lishid.openinv.internal.v1_8_R3;
+package com.lishid.openinv.internal.v1_9_R1;
 
 import java.io.File;
 import java.util.UUID;
@@ -28,11 +28,11 @@ import com.lishid.openinv.internal.IPlayerDataManager;
 import com.mojang.authlib.GameProfile;
 
 //Volatile
-import org.bukkit.craftbukkit.v1_8_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_9_R1.CraftServer;
 
-import net.minecraft.server.v1_8_R3.EntityPlayer;
-import net.minecraft.server.v1_8_R3.MinecraftServer;
-import net.minecraft.server.v1_8_R3.PlayerInteractManager;
+import net.minecraft.server.v1_9_R1.EntityPlayer;
+import net.minecraft.server.v1_9_R1.MinecraftServer;
+import net.minecraft.server.v1_9_R1.PlayerInteractManager;
 
 public class PlayerDataManager implements IPlayerDataManager {
     @Override
diff --git a/src/com/lishid/openinv/internal/v1_8_R3/SilentContainerChest.java b/src/com/lishid/openinv/internal/v1_9_R1/SilentContainerChest.java
similarity index 84%
rename from src/com/lishid/openinv/internal/v1_8_R3/SilentContainerChest.java
rename to src/com/lishid/openinv/internal/v1_9_R1/SilentContainerChest.java
index 681136d..9caebed 100644
--- a/src/com/lishid/openinv/internal/v1_8_R3/SilentContainerChest.java
+++ b/src/com/lishid/openinv/internal/v1_9_R1/SilentContainerChest.java
@@ -14,12 +14,12 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.lishid.openinv.internal.v1_8_R3;
+package com.lishid.openinv.internal.v1_9_R1;
 
 //Volatile
-import net.minecraft.server.v1_8_R3.ContainerChest;
-import net.minecraft.server.v1_8_R3.EntityHuman;
-import net.minecraft.server.v1_8_R3.IInventory;
+import net.minecraft.server.v1_9_R1.ContainerChest;
+import net.minecraft.server.v1_9_R1.EntityHuman;
+import net.minecraft.server.v1_9_R1.IInventory;
 
 public class SilentContainerChest extends ContainerChest {
     public IInventory inv;
diff --git a/src/com/lishid/openinv/internal/v1_8_R3/SpecialEnderChest.java b/src/com/lishid/openinv/internal/v1_9_R1/SpecialEnderChest.java
similarity index 88%
rename from src/com/lishid/openinv/internal/v1_8_R3/SpecialEnderChest.java
rename to src/com/lishid/openinv/internal/v1_9_R1/SpecialEnderChest.java
index cb6f542..16239c2 100644
--- a/src/com/lishid/openinv/internal/v1_8_R3/SpecialEnderChest.java
+++ b/src/com/lishid/openinv/internal/v1_9_R1/SpecialEnderChest.java
@@ -14,7 +14,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.lishid.openinv.internal.v1_8_R3;
+package com.lishid.openinv.internal.v1_9_R1;
 
 import java.lang.reflect.Field;
 import java.util.ArrayList;
@@ -29,15 +29,15 @@ import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.internal.ISpecialEnderChest;
 
 //Volatile
-import org.bukkit.craftbukkit.v1_8_R3.entity.CraftHumanEntity;
-import org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_8_R3.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_9_R1.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_9_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_9_R1.inventory.CraftInventory;
 
-import net.minecraft.server.v1_8_R3.EntityHuman;
-import net.minecraft.server.v1_8_R3.IInventory;
-import net.minecraft.server.v1_8_R3.InventoryEnderChest;
-import net.minecraft.server.v1_8_R3.InventorySubcontainer;
-import net.minecraft.server.v1_8_R3.ItemStack;
+import net.minecraft.server.v1_9_R1.EntityHuman;
+import net.minecraft.server.v1_9_R1.IInventory;
+import net.minecraft.server.v1_9_R1.InventoryEnderChest;
+import net.minecraft.server.v1_9_R1.InventorySubcontainer;
+import net.minecraft.server.v1_9_R1.ItemStack;
 
 public class SpecialEnderChest extends InventorySubcontainer implements IInventory, ISpecialEnderChest {
     public List<HumanEntity> transaction = new ArrayList<HumanEntity>();
diff --git a/src/com/lishid/openinv/internal/v1_8_R3/SpecialPlayerInventory.java b/src/com/lishid/openinv/internal/v1_9_R1/SpecialPlayerInventory.java
similarity index 78%
rename from src/com/lishid/openinv/internal/v1_8_R3/SpecialPlayerInventory.java
rename to src/com/lishid/openinv/internal/v1_9_R1/SpecialPlayerInventory.java
index 813834b..276b080 100644
--- a/src/com/lishid/openinv/internal/v1_8_R3/SpecialPlayerInventory.java
+++ b/src/com/lishid/openinv/internal/v1_9_R1/SpecialPlayerInventory.java
@@ -14,7 +14,10 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.lishid.openinv.internal.v1_8_R3;
+package com.lishid.openinv.internal.v1_9_R1;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
 
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
@@ -23,13 +26,13 @@ import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.internal.ISpecialPlayerInventory;
 
 //Volatile
-import org.bukkit.craftbukkit.v1_8_R3.entity.CraftHumanEntity;
-import org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_8_R3.inventory.CraftInventory;
+import org.bukkit.craftbukkit.v1_9_R1.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_9_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_9_R1.inventory.CraftInventory;
 
-import net.minecraft.server.v1_8_R3.EntityHuman;
-import net.minecraft.server.v1_8_R3.ItemStack;
-import net.minecraft.server.v1_8_R3.PlayerInventory;
+import net.minecraft.server.v1_9_R1.EntityHuman;
+import net.minecraft.server.v1_9_R1.ItemStack;
+import net.minecraft.server.v1_9_R1.PlayerInventory;
 
 public class SpecialPlayerInventory extends PlayerInventory implements ISpecialPlayerInventory {
     CraftPlayer owner;
@@ -41,11 +44,30 @@ public class SpecialPlayerInventory extends PlayerInventory implements ISpecialP
         super(((CraftPlayer) p).getHandle());
         this.owner = ((CraftPlayer) p);
         this.playerOnline = online;
-        this.items = player.inventory.items;
-        this.armor = player.inventory.armor;
+        setItemArrays(this, player.inventory.items, player.inventory.armor, player.inventory.extraSlots);
         OpenInv.inventories.put(owner.getName().toLowerCase(), this);
     }
 
+    private void setItemArrays(PlayerInventory inventory, ItemStack[] items, ItemStack[] armor,
+            ItemStack[] extraSlots) {
+        try {
+            Field field = inventory.getClass().getField("items");
+            Field modifiers = Field.class.getDeclaredField("modifiers");
+            modifiers.setAccessible(true);
+            modifiers.setInt(field, field.getModifiers() & ~Modifier.FINAL);
+            field.set(inventory, items);
+            field = inventory.getClass().getField("armor");
+            modifiers.setInt(field, field.getModifiers() & ~Modifier.FINAL);
+            field.set(inventory, armor);
+            field = inventory.getClass().getField("extraSlots");
+            modifiers.setInt(field, field.getModifiers() & ~Modifier.FINAL);
+        } catch (NoSuchFieldException | SecurityException | IllegalArgumentException
+                | IllegalAccessException e) {
+            // Unable to set final fields to item arrays, we're screwed. Noisily fail.
+            e.printStackTrace();
+        }
+    }
+
     @Override
     public Inventory getBukkitInventory() {
         return inventory;
@@ -63,8 +85,7 @@ public class SpecialPlayerInventory extends PlayerInventory implements ISpecialP
     public void PlayerGoOnline(Player player) {
         if (!playerOnline) {
             CraftPlayer p = (CraftPlayer) player;
-            p.getHandle().inventory.items = this.items;
-            p.getHandle().inventory.armor = this.armor;
+            setItemArrays(p.getHandle().inventory, items, armor, extraSlots);
             p.saveData();
             playerOnline = true;
         }
diff --git a/src/plugin.yml b/src/plugin.yml
index 9c9401c..02b49b2 100644
--- a/src/plugin.yml
+++ b/src/plugin.yml
@@ -1,6 +1,6 @@
 name: OpenInv
 main: com.lishid.openinv.OpenInv
-version: 2.2.9
+version: 2.2.10
 author: lishid
 authors: [Jikoo]
 description: >