Add trace to InstantiationException

Closes #33

.github/workflows/ci.yml

@@ -0,0 +1,76 @@
+name: OpenInv CI
+
+on:
+  push:
+  pull_request_target:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+
+      - name: Set Up Java
+        uses: actions/setup-java@v1
+        with:
+          java-version: 16
+
+      # Use cache to speed up build
+      - name: Cache Maven Repo
+        uses: actions/cache@v2
+        id: cache
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+
+      # Install Spigot dependencies.
+      # This script uses Maven to check all required installations and ensure that they are present.
+      - name: Install Spigot Dependencies
+        run: . scripts/install_spigot_dependencies.sh
+
+      - name: Build With Maven
+        run: mvn -e clean package -am -P all
+
+      # Upload artifacts
+      - name: Upload Distributable Jar
+        id: upload-final
+        uses: actions/upload-artifact@v2
+        with:
+          name: dist
+          path: ./target/OpenInv.jar
+      - name: Upload API Jar
+        id: upload-api
+        uses: actions/upload-artifact@v2
+        with:
+          name: api
+          path: ./api/target/openinvapi*.jar
+
+  release:
+    name: Create Github Release
+    needs: [ build ]
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set Release Variables
+        run: bash ./scripts/set_release_env.sh
+
+      - name: Download Artifacts
+        uses: actions/download-artifact@v2
+
+      - name: Create Release
+        id: create-release
+        uses: softprops/action-gh-release@v0.1.5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          name: ${{ env.VERSIONED_NAME }}
+          body: ${{ env.GENERATED_CHANGELOG }}
+          draft: true
+          prerelease: false
+          files: ./dist/OpenInv.jar

.github/workflows/release.yml

@@ -0,0 +1,37 @@
+name: Release to CurseForge
+
+on:
+  release:
+    types: [ released ]
+
+jobs:
+  curseforge_release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Fetch Github Release Asset
+        uses: dsaltares/fetch-gh-release-asset@0.0.5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: ${{ github.event.release.id }}
+          file: OpenInv.jar
+
+      - name: Set CurseForge Variables
+        run: . scripts/set_curseforge_env.sh "${{ github.event.release.body }}"
+
+      - name: Create CurseForge Release
+        uses: itsmeow/curseforge-upload@v3
+        with:
+          token: ${{ secrets.CURSEFORGE_TOKEN }}
+          project_id: 31432
+          game_endpoint: minecraft
+          file_path: ./OpenInv.jar
+          display_name: "${{ github.event.release.name }}"
+          game_versions: "${{ env.CURSEFORGE_MINECRAFT_VERSIONS }}"
+          release_type: release
+          changelog_type: markdown
+          changelog: "${{ env.CURSEFORGE_CHANGELOG }}"

.gitignore

@@ -0,0 +1,10 @@
+**/.settings
+**/.project
+**/.classpath
+**/.idea/
+**.iml
+**/target/
+**/bin/
+**/out/
+**/dependency-reduced-pom.xml
+**/pom.xml.versionsBackup

.settings/org.eclipse.ltk.core.refactoring.prefs

@@ -1,3 +0,0 @@
-#Wed Jun 01 17:38:54 EDT 2011
-eclipse.preferences.version=1
-org.eclipse.ltk.core.refactoring.enable.project.refactoring.history=false

README

@@ -1,13 +0,0 @@
-Copyright (C) 2011-2014 lishid.  All rights reserved.
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation,  version 3.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.

README.MD

@@ -0,0 +1,145 @@
+## About
+OpenInv is a [Bukkit plugin](https://dev.bukkit.org/bukkit-plugins/openinv/) which allows users to open and edit anyone's inventory or ender chest - online or not!
+
+## Features
+- **OpenInv**: Open anyone's inventory, even if they're offline.
+  - Read-only mode! No edits allowed! Don't grant the permission `OpenInv.editinv`
+  - Cross-world support! Don't grant `OpenInv.crossworld`
+  - No self-opening! Don't grant `OpenInv.openself`
+  - Drop items as the player! Place items in the unused slots to the right of the armor to drop them
+- **OpenEnder**: Open anyone's ender chest, even if they're offline.
+  - Read-only mode! No edits allowed! Don't grant `OpenInv.editender`
+  - Cross-world support! Don't grant `OpenInv.crossworld`
+  - No opening others! Don't grant `OpenInv.openenderall`
+- **SilentContainer**: Open containers without displaying an animation or making sound.
+- **AnyContainer**: Open containers, even if blocked by ocelots or blocks.
+
+## Commands
+See [the wiki](https://github.com/Jikoo/OpenInv/wiki/Commands).
+
+## Permissions
+<table>
+  <tr>
+    <th>Node</th>
+    <th>Description</th>
+  </tr>
+  <tr>
+    <td>OpenInv.*</td>
+    <td>Gives permission to use all of OpenInv.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.openinv</td>
+    <td>Required to use /openinv.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.openself</td>
+    <td>Required to open own inventory.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.editinv</td>
+    <td>Required to make changes to open inventories.</td>
+  </tr>
+  <tr>
+      <td>OpenInv.openonline</td>
+      <td>Allows users to open online players' inventories. For compatibility reasons this is granted by the nodes OpenInv.openinv and OpenInv.openender.</td>
+  </tr>
+  <tr>
+      <td>OpenInv.openoffline</td>
+      <td>Allows users to open offline players' inventories. For compatibility reasons this is granted by the nodes OpenInv.openinv and OpenInv.openender.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.openender</td>
+    <td>Required to use /openender.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.editender</td>
+    <td>Required to make changes to open ender chests.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.openenderall</td>
+    <td>Allows users to open others' ender chests. Without it, users can only open their own.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.exempt</td>
+    <td>Prevents the player's inventory being opened by others.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.override</td>
+    <td>Allows bypassing of the exempt permission.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.crossworld</td>
+    <td>Allows cross-world usage of /openinv and /openender.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.search</td>
+    <td>Required to use /searchinv and /searchender.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.searchenchant</td>
+    <td>Required to use /searchenchant.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.anychest</td>
+    <td>Required to use /anychest.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.any.default</td>
+    <td>Cause AnyContainer to be enabled by default.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.silent</td>
+    <td>Required to use /silentcontainer.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.silent.default</td>
+    <td>Cause SilentContainer to be enabled by default.</td>
+  </tr>
+  <tr>
+    <td>OpenInv.spectate</td>
+    <td>Allows users in spectate gamemode to edit inventories.</td>
+  </tr>
+</table>
+
+## For Developers
+
+### As a Dependency
+The OpenInv API is available via [JitPack](https://jitpack.io/).
+```xml
+  <repositories>
+    <repository>
+      <id>jitpack.io</id>
+      <url>https://jitpack.io</url>
+    </repository>
+  </repositories>
+```
+```xml
+  <dependencies>
+    <dependency>
+      <groupId>com.github.jikoo.OpenInv</groupId>
+      <artifactId>openinvapi</artifactId>
+      <version>${openinv.version}</version>
+    </dependency>
+  </dependencies>
+```
+
+### Compilation
+To compile, the relevant Spigot jars must be installed in your local repository using the `install` plugin:
+```shell
+mvn install:install-file -Dpackaging=jar -Dfile=spigot-1.8-R0.1-SNAPSHOT.jar \
+    -DgroupId=org.spigotmc -DartifactId=spigot -Dversion=1.8-R0.1-SNAPSHOT
+```
+Note that BuildTools automatically installs produced files. If you use BuildTools to compile Spigot locally, you don't need to install it manually.  
+If you want to use Paper as a dependency, you can install it by executing PaperClip with the property `paperclip.install` set to true:
+```shell
+wget -O paperclip.jar https://papermc.io/api/v1/paper/1.16.5/latest/download
+java -jar -Dpaperclip.install=true paperclip.jar
+```
+
+To compile for a single version, specify the NMS revision you are targeting: `mvn -pl <NMS module> -am clean install`
+
+To compile for a set of versions, you'll need to use a profile. The only provided profile is `all`. Select a profile using the `-P` argument: `mvn clean package -am -P all`
+
+For more information, check out the [official Maven guide](http://maven.apache.org/guides/introduction/introduction-to-profiles.html).
+
+The final file is `target/OpenInv.jar`

api/pom.xml

@@ -0,0 +1,49 @@
+<!--
+  ~ Copyright (C) 2011-2021 lishid. All rights reserved.
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, version 3.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <artifactId>openinvparent</artifactId>
+    <groupId>com.lishid</groupId>
+    <version>4.1.9-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>openinvapi</artifactId>
+  <name>OpenInvAPI</name>
+
+  <dependencies>
+    <dependency>
+      <artifactId>annotations</artifactId>
+      <groupId>org.jetbrains</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>spigot-api</artifactId>
+      <groupId>org.spigotmc</groupId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

api/src/main/java/com/lishid/openinv/IOpenInv.java

@@ -0,0 +1,310 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv;
+
+import com.lishid.openinv.internal.IAnySilentContainer;
+import com.lishid.openinv.internal.IInventoryAccess;
+import com.lishid.openinv.internal.ISpecialEnderChest;
+import com.lishid.openinv.internal.ISpecialInventory;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import com.lishid.openinv.util.InventoryAccess;
+import com.lishid.openinv.util.StringMetric;
+import java.util.UUID;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryView;
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Interface defining behavior for the OpenInv plugin.
+ *
+ * @author Jikoo
+ */
+public interface IOpenInv {
+
+    /**
+     * Check the configuration value for whether or not OpenInv saves player data when unloading
+     * players. This is exclusively for users who do not allow editing of inventories, only viewing,
+     * and wish to prevent any possibility of bugs such as lishid#40. If true, OpenInv will not ever
+     * save any edits made to players.
+     *
+     * @return false unless configured otherwise
+     */
+    boolean disableSaving();
+
+    /**
+     * Gets the active ISilentContainer implementation.
+     *
+     * @return the ISilentContainer
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    @NotNull IAnySilentContainer getAnySilentContainer();
+
+    /**
+     * Gets the active IInventoryAccess implementation.
+     *
+     * @return the IInventoryAccess
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    @Deprecated
+    default @NotNull IInventoryAccess getInventoryAccess() {
+        return new InventoryAccess();
+    }
+
+    /**
+     * Gets the provided player's AnyChest setting.
+     *
+     * @param player the OfflinePlayer
+     * @return true if AnyChest is enabled
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    boolean getPlayerAnyChestStatus(@NotNull OfflinePlayer player);
+
+    /**
+     * Gets a unique identifier by which the OfflinePlayer can be referenced. Using the value
+     * returned to look up a Player will generally be much faster for later implementations.
+     *
+     * @param offline the OfflinePlayer
+     * @return the identifier
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    default @NotNull String getPlayerID(@NotNull OfflinePlayer offline) {
+        return offline.getUniqueId().toString();
+    }
+
+    /**
+     * Gets a player's SilentChest setting.
+     *
+     * @param offline the OfflinePlayer
+     * @return true if SilentChest is enabled
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    boolean getPlayerSilentChestStatus(@NotNull OfflinePlayer offline);
+
+    /**
+     * Gets an ISpecialEnderChest for the given Player.
+     *
+     * @param player the Player
+     * @param online true if the Player is currently online
+     * @return the ISpecialEnderChest
+     * @throws IllegalStateException  if the server version is unsupported
+     * @throws InstantiationException if the ISpecialEnderChest could not be instantiated
+     */
+    @NotNull ISpecialEnderChest getSpecialEnderChest(@NotNull Player player, boolean online) throws InstantiationException;
+
+    /**
+     * Gets an ISpecialPlayerInventory for the given Player.
+     *
+     * @param player the Player
+     * @param online true if the Player is currently online
+     * @return the ISpecialPlayerInventory
+     * @throws IllegalStateException  if the server version is unsupported
+     * @throws InstantiationException if the ISpecialPlayerInventory could not be instantiated
+     */
+    @NotNull ISpecialPlayerInventory getSpecialInventory(@NotNull Player player, boolean online) throws InstantiationException;
+
+    /**
+     * Checks if the server version is supported by OpenInv.
+     *
+     * @return true if the server version is supported
+     */
+    boolean isSupportedVersion();
+
+    /**
+     * Load a Player from an OfflinePlayer. May return null under some circumstances.
+     *
+     * @param offline the OfflinePlayer to load a Player for
+     * @return the Player, or null
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    @Nullable Player loadPlayer(@NotNull final OfflinePlayer offline);
+
+    /**
+     * Get an OfflinePlayer by name.
+     * <p>
+     * Note: This method is potentially very heavily blocking. It should not ever be called on the
+     * main thread, and if it is, a stack trace will be displayed alerting server owners to the
+     * call.
+     *
+     * @param name the name of the Player
+     * @return the OfflinePlayer with the closest matching name or null if no players have ever logged in
+     */
+    default @Nullable OfflinePlayer matchPlayer(@NotNull String name) {
+
+        // Warn if called on the main thread - if we resort to searching offline players, this may take several seconds.
+        if (Bukkit.getServer().isPrimaryThread()) {
+            this.getLogger().warning("Call to OpenInv#matchPlayer made on the main thread!");
+            this.getLogger().warning("This can cause the server to hang, potentially severely.");
+            this.getLogger().log(Level.WARNING, new Throwable("Current stack trace"), () -> "Current stack trace");
+        }
+
+        OfflinePlayer player;
+
+        try {
+            UUID uuid = UUID.fromString(name);
+            player = Bukkit.getOfflinePlayer(uuid);
+            // Ensure player is a real player, otherwise return null
+            if (player.hasPlayedBefore() || player.isOnline()) {
+                return player;
+            }
+        } catch (IllegalArgumentException ignored) {
+            // Not a UUID
+        }
+
+        player = Bukkit.getServer().getPlayerExact(name);
+
+        if (player != null) {
+            return player;
+        }
+
+        player = Bukkit.getServer().getOfflinePlayer(name);
+
+        if (player.hasPlayedBefore()) {
+            return player;
+        }
+
+        player = Bukkit.getServer().getPlayer(name);
+
+        if (player != null) {
+            return player;
+        }
+
+        float bestMatch = 0;
+        for (OfflinePlayer offline : Bukkit.getServer().getOfflinePlayers()) {
+            if (offline.getName() == null) {
+                // Loaded by UUID only, name has never been looked up.
+                continue;
+            }
+
+            float currentMatch = StringMetric.compareJaroWinkler(name, offline.getName());
+
+            if (currentMatch == 1.0F) {
+                return offline;
+            }
+
+            if (currentMatch > bestMatch) {
+                bestMatch = currentMatch;
+                player = offline;
+            }
+        }
+
+        // Only null if no players have played ever, otherwise even the worst match will do.
+        return player;
+    }
+
+    /**
+     * Open an ISpecialInventory for a Player.
+     *
+     * @param player the Player
+     * @param inventory the ISpecialInventory
+     * @return the InventoryView for the opened ISpecialInventory
+     */
+    @Nullable InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory);
+
+    /**
+     * Check the configuration value for whether or not OpenInv displays a notification to the user
+     * when a container is activated with AnyChest.
+     *
+     * @return true unless configured otherwise
+     * @deprecated OpenInv uses action bar chat for notifications. Whether or not they show is based on language settings.
+     */
+    @Deprecated
+    default boolean notifyAnyChest() {
+        return true;
+    }
+
+    /**
+     * Check the configuration value for whether or not OpenInv displays a notification to the user
+     * when a container is activated with SilentChest.
+     *
+     * @return true unless configured otherwise
+     * @deprecated OpenInv uses action bar chat for notifications. Whether or not they show is based on language settings.
+     */
+    @Deprecated
+    default boolean notifySilentChest() {
+        return true;
+    }
+
+    /**
+     * Mark a Player as no longer in use by a Plugin to allow OpenInv to remove it from the cache
+     * when eligible.
+     *
+     * @param player the Player
+     * @param plugin the Plugin no longer holding a reference to the Player
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    void releasePlayer(@NotNull Player player, @NotNull Plugin plugin);
+
+    /**
+     * Mark a Player as in use by a Plugin to prevent it from being removed from the cache. Used to
+     * prevent issues with multiple copies of the same Player being loaded such as lishid#49.
+     * Changes made to loaded copies overwrite changes to the others when saved, leading to
+     * duplication bugs and more.
+     * <p>
+     * When finished with the Player object, be sure to call {@link #releasePlayer(Player, Plugin)}
+     * to prevent the cache from keeping it stored until the plugin is disabled.
+     * <p>
+     * When using a Player object from OpenInv, you must handle the Player coming online, replacing
+     * your Player reference with the Player from the PlayerJoinEvent. In addition, you must change
+     * any values in the Player to reflect any unsaved alterations to the existing Player which do
+     * not affect the inventory or ender chest contents.
+     * <p>
+     * OpenInv only saves player data when unloading a Player from the cache, and then only if
+     * {@link #disableSaving()} returns false. If you are making changes that OpenInv does not cause
+     * to persist when a Player logs in as noted above, it is suggested that you manually call
+     * {@link Player#saveData()} when releasing your reference to ensure your changes persist.
+     *
+     * @param player the Player
+     * @param plugin the Plugin holding the reference to the Player
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    void retainPlayer(@NotNull Player player, @NotNull Plugin plugin);
+
+    /**
+     * Sets a player's AnyChest setting.
+     *
+     * @param offline the OfflinePlayer
+     * @param status the status
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    void setPlayerAnyChestStatus(@NotNull OfflinePlayer offline, boolean status);
+
+    /**
+     * Sets a player's SilentChest setting.
+     *
+     * @param offline the OfflinePlayer
+     * @param status the status
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    void setPlayerSilentChestStatus(@NotNull OfflinePlayer offline, boolean status);
+
+    /**
+     * Forcibly unload a cached Player's data.
+     *
+     * @param offline the OfflinePlayer to unload
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    void unload(@NotNull OfflinePlayer offline);
+
+    Logger getLogger();
+
+}

api/src/main/java/com/lishid/openinv/internal/IAnySilentContainer.java

@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal;
+
+import org.bukkit.Material;
+import org.bukkit.block.Barrel;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockFace;
+import org.bukkit.block.BlockState;
+import org.bukkit.block.EnderChest;
+import org.bukkit.block.ShulkerBox;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.block.data.Directional;
+import org.bukkit.block.data.type.Chest;
+import org.bukkit.entity.Cat;
+import org.bukkit.entity.Player;
+import org.bukkit.util.BoundingBox;
+import org.jetbrains.annotations.NotNull;
+
+public interface IAnySilentContainer {
+
+    /**
+     * Opens the container at the given coordinates for the Player. If you do not want blocked
+     * containers to open, be sure to check {@link #isAnyContainerNeeded(Player, Block)}
+     * first.
+     *
+     * @param player    the Player opening the container
+     * @param silent    whether the container's noise is to be silenced
+     * @param block     the Block
+     * @return true if the container can be opened
+     */
+    boolean activateContainer(@NotNull Player player, boolean silent, @NotNull Block block);
+
+    /**
+     * Closes the Player's currently open container silently, if necessary.
+     *
+     * @param player the Player closing a container
+     */
+    void deactivateContainer(@NotNull Player player);
+
+    /**
+     * @deprecated use {@link #isAnyContainerNeeded(Block)}
+     * @param player the player opening the container
+     * @param block the block
+     * @return true if the container is blocked
+     */
+    @Deprecated
+    default boolean isAnyContainerNeeded(@NotNull Player player, @NotNull Block block) {
+        return isAnyContainerNeeded(block);
+    }
+
+    /**
+     * Checks if the container at the given coordinates is blocked.
+     *
+     * @param block  the Block
+     * @return true if the container is blocked
+     */
+    default boolean isAnyContainerNeeded(@NotNull Block block) {
+        BlockState blockState = block.getState();
+
+        // Barrels do not require AnyContainer.
+        if (blockState instanceof Barrel) {
+            return false;
+        }
+
+        // Enderchests require a non-occluding block on top to open.
+        if (blockState instanceof EnderChest) {
+            return block.getRelative(0, 1, 0).getType().isOccluding();
+        }
+
+        // Shulker boxes require 1/2 a block clear in the direction they open.
+        if (blockState instanceof ShulkerBox) {
+            BoundingBox boundingBox = block.getBoundingBox();
+            if (boundingBox.getVolume() > 1) {
+                // Shulker box is already open.
+                return false;
+            }
+
+            BlockData blockData = block.getBlockData();
+            if (!(blockData instanceof Directional)) {
+                // Shouldn't be possible. Just in case, demand AnyChest.
+                return true;
+            }
+
+            Directional directional = (Directional) blockData;
+            BlockFace face = directional.getFacing();
+            boundingBox.shift(face.getDirection());
+            // Return whether or not bounding boxes overlap.
+            return block.getRelative(face, 1).getBoundingBox().overlaps(boundingBox);
+        }
+
+
+        if (!(blockState instanceof org.bukkit.block.Chest)) {
+            return false;
+        }
+
+        if (isChestBlocked(block)) {
+            return true;
+        }
+
+        BlockData blockData = block.getBlockData();
+        if (!(blockData instanceof Chest) || ((Chest) blockData).getType() == Chest.Type.SINGLE) {
+            return false;
+        }
+
+        Chest chest = (Chest) blockData;
+        int ordinal = (chest.getFacing().ordinal() + 4 + (chest.getType() == Chest.Type.RIGHT ? -1 : 1)) % 4;
+        BlockFace relativeFace = BlockFace.values()[ordinal];
+        org.bukkit.block.Block relative = block.getRelative(relativeFace);
+
+        if (relative.getType() != block.getType()) {
+            return false;
+        }
+
+        BlockData relativeData = relative.getBlockData();
+        if (!(relativeData instanceof Chest)) {
+            return false;
+        }
+
+        Chest relativeChest = (Chest) relativeData;
+        if (relativeChest.getFacing() != chest.getFacing()
+                || relativeChest.getType() != (chest.getType() == Chest.Type.RIGHT ? Chest.Type.LEFT : Chest.Type.RIGHT)) {
+            return false;
+        }
+
+        return isChestBlocked(relative);
+    }
+
+    default boolean isChestBlocked(Block chest) {
+        org.bukkit.block.Block relative = chest.getRelative(0, 1, 0);
+        return relative.getType().isOccluding()
+                || chest.getWorld().getNearbyEntities(BoundingBox.of(relative), entity -> entity instanceof Cat).size() > 0;
+    }
+
+    /**
+     * Checks if the given block is a container which can be unblocked or silenced.
+     *
+     * @param block the BlockState
+     * @return true if the Block is a supported container
+     */
+    default boolean isAnySilentContainer(@NotNull Block block) {
+        if (block.getType() == Material.ENDER_CHEST) {
+            return true;
+        }
+        BlockState state = block.getState();
+        return state instanceof org.bukkit.block.Chest
+                || state instanceof org.bukkit.block.ShulkerBox
+                || state instanceof org.bukkit.block.Barrel;
+    }
+
+}

api/src/main/java/com/lishid/openinv/internal/IInventoryAccess.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal;
+
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+@Deprecated
+public interface IInventoryAccess {
+
+    /**
+     * Gets an ISpecialEnderChest from an Inventory or null if the Inventory is not backed by an
+     * ISpecialEnderChest.
+     *
+     * @param inventory the Inventory
+     * @return the ISpecialEnderChest or null
+     */
+    @Deprecated
+    @Nullable ISpecialEnderChest getSpecialEnderChest(@NotNull Inventory inventory);
+
+    /**
+     * Gets an ISpecialPlayerInventory from an Inventory or null if the Inventory is not backed by
+     * an ISpecialPlayerInventory.
+     *
+     * @param inventory the Inventory
+     * @return the ISpecialPlayerInventory or null
+     */
+    @Deprecated
+    @Nullable ISpecialPlayerInventory getSpecialPlayerInventory(@NotNull Inventory inventory);
+
+    /**
+     * Check if an Inventory is an ISpecialEnderChest implementation.
+     *
+     * @param inventory the Inventory
+     * @return true if the Inventory is backed by an ISpecialEnderChest
+     */
+    @Deprecated
+    boolean isSpecialEnderChest(@NotNull Inventory inventory);
+
+    /**
+     * Check if an Inventory is an ISpecialPlayerInventory implementation.
+     *
+     * @param inventory the Inventory
+     * @return true if the Inventory is backed by an ISpecialPlayerInventory
+     */
+    @Deprecated
+    boolean isSpecialPlayerInventory(@NotNull Inventory inventory);
+
+}

api/src/main/java/com/lishid/openinv/internal/ISpecialEnderChest.java

@@ -1,24 +1,21 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal;
-
-import org.bukkit.entity.HumanEntity;
-import org.bukkit.inventory.Inventory;
-
-public interface IInventoryAccess {
-    public boolean check(Inventory inventory, HumanEntity player);
-}
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal;
+
+public interface ISpecialEnderChest extends ISpecialInventory {
+
+}

api/src/main/java/com/lishid/openinv/internal/ISpecialInventory.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal;
+
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+
+public interface ISpecialInventory {
+
+    /**
+     * Gets the Inventory associated with this ISpecialInventory.
+     *
+     * @return the Inventory
+     */
+    @NotNull Inventory getBukkitInventory();
+
+    /**
+     * Sets the Player associated with this ISpecialInventory online.
+     *
+     * @param player the Player coming online
+     */
+    void setPlayerOnline(@NotNull Player player);
+
+    /**
+     * Sets the Player associated with this ISpecialInventory offline.
+     */
+    void setPlayerOffline();
+
+    /**
+     * Gets whether or not this ISpecialInventory is in use.
+     *
+     * @return true if the ISpecialInventory is in use
+     */
+    boolean isInUse();
+
+    /**
+     * Gets the Player associated with this ISpecialInventory.
+     *
+     * @return the HumanEntity
+     */
+    @NotNull HumanEntity getPlayer();
+
+}

api/src/main/java/com/lishid/openinv/internal/ISpecialPlayerInventory.java

@@ -1,26 +1,21 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal;
-
-import java.util.UUID;
-
-import org.bukkit.entity.Player;
-
-public interface IPlayerDataManager {
-    public Player loadPlayer(String name);
-    public Player loadPlayer(UUID uuid);
-}
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal;
+
+public interface ISpecialPlayerInventory extends ISpecialInventory {
+
+}

api/src/main/java/com/lishid/openinv/util/InventoryAccess.java

@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.util;
+
+import com.lishid.openinv.internal.IInventoryAccess;
+import com.lishid.openinv.internal.ISpecialEnderChest;
+import com.lishid.openinv.internal.ISpecialInventory;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import org.bukkit.Bukkit;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class InventoryAccess implements IInventoryAccess {
+
+    private static Class<?> craftInventory = null;
+    private static Method getInventory = null;
+
+    static {
+        String packageName = Bukkit.getServer().getClass().getPackage().getName();
+        try {
+            craftInventory = Class.forName(packageName + ".inventory.CraftInventory");
+        } catch (ClassNotFoundException ignored) {}
+        try {
+            getInventory = craftInventory.getDeclaredMethod("getInventory");
+        } catch (NoSuchMethodException ignored) {}
+    }
+
+    /**
+     * @deprecated use {@link #isUsable()}
+     */
+    @Deprecated
+    public static boolean isUseable() {
+        return isUsable();
+    }
+
+    public static boolean isUsable() {
+        return craftInventory != null && getInventory != null;
+    }
+
+    public static boolean isPlayerInventory(@NotNull Inventory inventory) {
+        return getPlayerInventory(inventory) != null;
+    }
+
+    public static @Nullable ISpecialPlayerInventory getPlayerInventory(@NotNull Inventory inventory) {
+        return getSpecialInventory(ISpecialPlayerInventory.class, inventory);
+    }
+
+    public static boolean isEnderChest(@NotNull Inventory inventory) {
+        return getEnderChest(inventory) != null;
+    }
+
+    public static @Nullable ISpecialEnderChest getEnderChest(@NotNull Inventory inventory) {
+        return getSpecialInventory(ISpecialEnderChest.class, inventory);
+    }
+
+    private static <T extends ISpecialInventory> @Nullable T getSpecialInventory(@NotNull Class<T> expected, @NotNull Inventory inventory) {
+        Object inv;
+        if (craftInventory != null && getInventory != null && craftInventory.isAssignableFrom(inventory.getClass())) {
+            try {
+                inv = getInventory.invoke(inventory);
+                if (expected.isInstance(inv)) {
+                    return expected.cast(inv);
+                }
+            } catch (ReflectiveOperationException ignored) {}
+        }
+
+        inv = grabFieldOfTypeFromObject(expected, inventory);
+
+        if (expected.isInstance(inv)) {
+            return expected.cast(inv);
+        }
+
+        return null;
+    }
+
+    private static <T> @Nullable T grabFieldOfTypeFromObject(final Class<T> type, final Object object) {
+        // Use reflection to find the IInventory
+        Class<?> clazz = object.getClass();
+        T result = null;
+        for (Field f : clazz.getDeclaredFields()) {
+            f.setAccessible(true);
+            if (type.isAssignableFrom(f.getDeclaringClass())) {
+                try {
+                    result = type.cast(f.get(object));
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return result;
+    }
+
+    @Deprecated
+    @Override
+    public @Nullable ISpecialEnderChest getSpecialEnderChest(@NotNull Inventory inventory) {
+        return getEnderChest(inventory);
+    }
+
+    @Deprecated
+    @Override
+    public @Nullable ISpecialPlayerInventory getSpecialPlayerInventory(@NotNull Inventory inventory) {
+        return getPlayerInventory(inventory);
+    }
+
+    @Deprecated
+    @Override
+    public boolean isSpecialEnderChest(@NotNull Inventory inventory) {
+        return isEnderChest(inventory);
+    }
+
+    @Deprecated
+    @Override
+    public boolean isSpecialPlayerInventory(@NotNull Inventory inventory) {
+        return isPlayerInventory(inventory);
+    }
+
+}

api/src/main/java/com/lishid/openinv/util/StringMetric.java

@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.util;
+
+public class StringMetric {
+
+    public static float compareJaroWinkler(String a, String b) {
+        final float jaroScore = compareJaro(a, b);
+
+        if (jaroScore < (float) 0.7) {
+            return jaroScore;
+        }
+
+        String prefix = commonPrefix(a, b);
+        int prefixLength = Math.min(prefix.codePointCount(0, prefix.length()), 4);
+
+        return jaroScore + (prefixLength * (float) 0.1 * (1.0f - jaroScore));
+
+    }
+
+    private static float compareJaro(String a, String b) {
+        if (a.isEmpty() && b.isEmpty()) {
+            return 1.0f;
+        }
+
+        if (a.isEmpty() || b.isEmpty()) {
+            return 0.0f;
+        }
+
+        final int[] charsA = a.codePoints().toArray();
+        final int[] charsB = b.codePoints().toArray();
+
+        // Intentional integer division to round down.
+        final int halfLength = Math.max(0, Math.max(charsA.length, charsB.length) / 2 - 1);
+
+        final int[] commonA = getCommonCodePoints(charsA, charsB, halfLength);
+        final int[] commonB = getCommonCodePoints(charsB, charsA, halfLength);
+
+        // commonA and commonB will always contain the same multi-set of
+        // characters. Because getCommonCharacters has been optimized, commonA
+        // and commonB are -1-padded. So in this loop we count transposition
+        // and use commonCharacters to determine the length of the multi-set.
+        float transpositions = 0;
+        int commonCharacters = 0;
+        for (int length = commonA.length; commonCharacters < length
+                && commonA[commonCharacters] > -1; commonCharacters++) {
+            if (commonA[commonCharacters] != commonB[commonCharacters]) {
+                transpositions++;
+            }
+        }
+
+        if (commonCharacters == 0) {
+            return 0.0f;
+        }
+
+        float aCommonRatio = commonCharacters / (float) charsA.length;
+        float bCommonRatio = commonCharacters / (float) charsB.length;
+        float transpositionRatio = (commonCharacters - transpositions / 2.0f) / commonCharacters;
+
+        return (aCommonRatio + bCommonRatio + transpositionRatio) / 3.0f;
+    }
+
+    /*
+     * Returns an array of code points from a within b. A character in b is
+     * counted as common when it is within separation distance from the position
+     * in a.
+     */
+    private static int[] getCommonCodePoints(final int[] charsA, final int[] charsB, final int separation) {
+        final int[] common = new int[Math.min(charsA.length, charsB.length)];
+        final boolean[] matched = new boolean[charsB.length];
+
+        // Iterate of string a and find all characters that occur in b within
+        // the separation distance. Mark any matches found to avoid
+        // duplicate matchings.
+        int commonIndex = 0;
+        for (int i = 0, length = charsA.length; i < length; i++) {
+            final int character = charsA[i];
+            final int index = indexOf(character, charsB, i - separation, i
+                    + separation + 1, matched);
+            if (index > -1) {
+                common[commonIndex++] = character;
+                matched[index] = true;
+            }
+        }
+
+        if (commonIndex < common.length) {
+            common[commonIndex] = -1;
+        }
+
+        // Both invocations will yield the same multi-set terminated by -1, so
+        // they can be compared for transposition without making a copy.
+        return common;
+    }
+
+    /*
+     * Search for code point in buffer starting at fromIndex to toIndex - 1.
+     *
+     * Returns -1 when not found.
+     */
+    private static int indexOf(int character, int[] buffer, int fromIndex, int toIndex, boolean[] matched) {
+
+        // compare char with range of characters to either side
+        for (int j = Math.max(0, fromIndex), length = Math.min(toIndex, buffer.length); j < length; j++) {
+            // check if found
+            if (buffer[j] == character && !matched[j]) {
+                return j;
+            }
+        }
+
+        return -1;
+    }
+
+    private static String commonPrefix(CharSequence a, CharSequence b) {
+        int maxPrefixLength = Math.min(a.length(), b.length());
+
+        int p;
+
+        p = 0;
+        while (p < maxPrefixLength && a.charAt(p) == b.charAt(p)) {
+            ++p;
+        }
+
+        if (validSurrogatePairAt(a, p - 1) || validSurrogatePairAt(b, p - 1)) {
+            --p;
+        }
+
+        return a.subSequence(0, p).toString();
+    }
+
+    private static boolean validSurrogatePairAt(CharSequence string, int index) {
+        return index >= 0 && index <= string.length() - 2 && Character.isHighSurrogate(string.charAt(index)) && Character.isLowSurrogate(string.charAt(index + 1));
+    }
+
+    private StringMetric(){}
+
+}

assembly/pom.xml

@@ -0,0 +1,58 @@
+<!--
+  ~ Copyright (C) 2011-2021 lishid. All rights reserved.
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, version 3.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>com.lishid</groupId>
+    <artifactId>openinvparent</artifactId>
+    <version>4.1.9-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>openinvassembly</artifactId>
+  <name>OpenInvAssembly</name>
+  <packaging>pom</packaging>
+
+  <build>
+    <directory>../target</directory>
+    <finalName>OpenInv</finalName>
+
+    <plugins>
+      <plugin>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>reactor-uberjar</id>
+            <phase>package</phase>
+            <goals>
+              <goal>single</goal>
+            </goals>
+            <configuration>
+              <appendAssemblyId>false</appendAssemblyId>
+              <descriptors>
+                <descriptor>src/assembly/reactor-uberjar.xml</descriptor>
+              </descriptors>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+
+  </build>
+
+</project>

assembly/src/assembly/reactor-uberjar.xml

@@ -0,0 +1,54 @@
+<!--
+  ~ Copyright (C) 2011-2021 lishid. All rights reserved.
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, version 3.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<assembly xmlns="http://maven.apache.org/ASSEMBLY/2.1.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/ASSEMBLY/2.1.0 http://maven.apache.org/xsd/assembly-2.1.0.xsd">
+
+  <id>reactor-uberjar</id>
+
+  <formats>
+    <format>jar</format>
+  </formats>
+
+  <includeBaseDirectory>false</includeBaseDirectory>
+
+  <moduleSets>
+    <moduleSet>
+
+      <useAllReactorProjects>true</useAllReactorProjects>
+
+      <binaries>
+        <outputDirectory>/</outputDirectory>
+        <unpack>true</unpack>
+        <unpackOptions>
+          <excludes>
+            <!--
+              - Exclude existing meta - assembly will write its own manifest, and the rest is maven
+              - details that end users don't need. Ignoring it saves around 7KB after compression
+              - with a single internal module present.
+             -->
+            <exclude>META-INF/**</exclude>
+          </excludes>
+        </unpackOptions>
+        <!-- Exclude dependencies - shade plugin will handle their inclusion as necessary in individual jars. -->
+        <includeDependencies>false</includeDependencies>
+      </binaries>
+
+    </moduleSet>
+  </moduleSets>
+
+</assembly>

internal/v1_16_R3/pom.xml

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright (C) 2011-2021 lishid. All rights reserved.
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, version 3.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <artifactId>openinvparent</artifactId>
+    <groupId>com.lishid</groupId>
+    <relativePath>../../pom.xml</relativePath>
+    <version>4.1.9-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>openinvadapter1_16_R3</artifactId>
+  <name>OpenInvAdapter1_16_R3</name>
+
+  <dependencies>
+    <dependency>
+      <artifactId>spigot</artifactId>
+      <groupId>org.spigotmc</groupId>
+      <scope>provided</scope>
+      <version>1.16.5-R0.1-SNAPSHOT</version>
+    </dependency>
+    <dependency>
+      <artifactId>openinvapi</artifactId>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>openinvplugincore</artifactId>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>annotations</artifactId>
+      <groupId>org.jetbrains</groupId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-shade-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

internal/v1_16_R3/src/main/java/com/lishid/openinv/internal/v1_16_R3/AnySilentContainer.java

@@ -0,0 +1,245 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_16_R3;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.internal.IAnySilentContainer;
+import java.lang.reflect.Field;
+import net.minecraft.server.v1_16_R3.Block;
+import net.minecraft.server.v1_16_R3.BlockBarrel;
+import net.minecraft.server.v1_16_R3.BlockChest;
+import net.minecraft.server.v1_16_R3.BlockChestTrapped;
+import net.minecraft.server.v1_16_R3.BlockPosition;
+import net.minecraft.server.v1_16_R3.BlockPropertyChestType;
+import net.minecraft.server.v1_16_R3.BlockShulkerBox;
+import net.minecraft.server.v1_16_R3.ChatMessage;
+import net.minecraft.server.v1_16_R3.Container;
+import net.minecraft.server.v1_16_R3.ContainerChest;
+import net.minecraft.server.v1_16_R3.Containers;
+import net.minecraft.server.v1_16_R3.EntityHuman;
+import net.minecraft.server.v1_16_R3.EntityPlayer;
+import net.minecraft.server.v1_16_R3.EnumGamemode;
+import net.minecraft.server.v1_16_R3.IBlockData;
+import net.minecraft.server.v1_16_R3.IChatBaseComponent;
+import net.minecraft.server.v1_16_R3.ITileInventory;
+import net.minecraft.server.v1_16_R3.InventoryEnderChest;
+import net.minecraft.server.v1_16_R3.InventoryLargeChest;
+import net.minecraft.server.v1_16_R3.PlayerInteractManager;
+import net.minecraft.server.v1_16_R3.PlayerInventory;
+import net.minecraft.server.v1_16_R3.TileEntity;
+import net.minecraft.server.v1_16_R3.TileEntityChest;
+import net.minecraft.server.v1_16_R3.TileEntityEnderChest;
+import net.minecraft.server.v1_16_R3.TileEntityLootable;
+import net.minecraft.server.v1_16_R3.TileInventory;
+import net.minecraft.server.v1_16_R3.World;
+import org.bukkit.Material;
+import org.bukkit.Statistic;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryView;
+import org.jetbrains.annotations.NotNull;
+
+public class AnySilentContainer implements IAnySilentContainer {
+
+    private Field playerInteractManagerGamemode;
+
+    public AnySilentContainer() {
+        try {
+            this.playerInteractManagerGamemode = PlayerInteractManager.class.getDeclaredField("gamemode");
+            this.playerInteractManagerGamemode.setAccessible(true);
+        } catch (NoSuchFieldException | SecurityException e) {
+            System.err.println("[OpenInv] Unable to directly write player gamemode! SilentChest will fail.");
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public boolean activateContainer(@NotNull final Player bukkitPlayer, final boolean silentchest,
+                                     @NotNull final org.bukkit.block.Block bukkitBlock) {
+
+        // Silent ender chest is API-only
+        if (silentchest && bukkitBlock.getType() == Material.ENDER_CHEST) {
+            bukkitPlayer.openInventory(bukkitPlayer.getEnderChest());
+            bukkitPlayer.incrementStatistic(Statistic.ENDERCHEST_OPENED);
+            return true;
+        }
+
+        EntityPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        final World world = player.world;
+        final BlockPosition blockPosition = new BlockPosition(bukkitBlock.getX(), bukkitBlock.getY(), bukkitBlock.getZ());
+        final TileEntity tile = world.getTileEntity(blockPosition);
+
+        if (tile == null) {
+            return false;
+        }
+
+        if (tile instanceof TileEntityEnderChest) {
+            // Anychest ender chest. See net.minecraft.server.BlockEnderChest
+            InventoryEnderChest enderChest = player.getEnderChest();
+            enderChest.a((TileEntityEnderChest) tile);
+            player.openContainer(new TileInventory((containerCounter, playerInventory, ignored) -> {
+                Containers<?> containers = PlayerDataManager.getContainers(enderChest.getSize());
+                int rows = enderChest.getSize() / 9;
+                return new ContainerChest(containers, containerCounter, playerInventory, enderChest, rows);
+            }, new ChatMessage("container.enderchest")));
+            bukkitPlayer.incrementStatistic(Statistic.ENDERCHEST_OPENED);
+            return true;
+        }
+
+        if (!(tile instanceof ITileInventory)) {
+            return false;
+        }
+
+        ITileInventory tileInventory = (ITileInventory) tile;
+        IBlockData blockData = world.getType(blockPosition);
+        Block block = blockData.getBlock();
+
+        if (block instanceof BlockChest) {
+
+            BlockPropertyChestType chestType = blockData.get(BlockChest.c);
+
+            if (chestType != BlockPropertyChestType.SINGLE) {
+
+                BlockPosition adjacentBlockPosition = blockPosition.shift(BlockChest.h(blockData));
+                IBlockData adjacentBlockData = world.getType(adjacentBlockPosition);
+
+                if (adjacentBlockData.getBlock() == block) {
+
+                    BlockPropertyChestType adjacentChestType = adjacentBlockData.get(BlockChest.c);
+
+                    if (adjacentChestType != BlockPropertyChestType.SINGLE && chestType != adjacentChestType
+                            && adjacentBlockData.get(BlockChest.FACING) == blockData.get(BlockChest.FACING)) {
+
+                        TileEntity adjacentTile = world.getTileEntity(adjacentBlockPosition);
+
+                        if (adjacentTile instanceof TileEntityChest && tileInventory instanceof  TileEntityChest) {
+                            TileEntityChest rightChest = chestType == BlockPropertyChestType.RIGHT ? ((TileEntityChest) tileInventory) : (TileEntityChest) adjacentTile;
+                            TileEntityChest leftChest = chestType == BlockPropertyChestType.RIGHT ? (TileEntityChest) adjacentTile : ((TileEntityChest) tileInventory);
+
+                            if (silentchest && (rightChest.lootTable != null || leftChest.lootTable != null)) {
+                                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                                return false;
+                            }
+
+                            tileInventory = new ITileInventory() {
+                                public Container createMenu(int containerCounter, PlayerInventory playerInventory, EntityHuman entityHuman) {
+                                    leftChest.d(playerInventory.player);
+                                    rightChest.d(playerInventory.player);
+                                    return ContainerChest.b(containerCounter, playerInventory, new InventoryLargeChest(rightChest, leftChest));
+                                }
+
+                                public IChatBaseComponent getScoreboardDisplayName() {
+                                    if (leftChest.hasCustomName()) {
+                                        return leftChest.getScoreboardDisplayName();
+                                    }
+                                    if (rightChest.hasCustomName()) {
+                                        return rightChest.getScoreboardDisplayName();
+                                    }
+                                    return new ChatMessage("container.chestDouble");
+                                }
+                            };
+                        }
+                    }
+                }
+            }
+
+            if (block instanceof BlockChestTrapped) {
+                bukkitPlayer.incrementStatistic(Statistic.TRAPPED_CHEST_TRIGGERED);
+            } else {
+                bukkitPlayer.incrementStatistic(Statistic.CHEST_OPENED);
+            }
+        }
+
+        if (block instanceof BlockShulkerBox) {
+            bukkitPlayer.incrementStatistic(Statistic.SHULKER_BOX_OPENED);
+        }
+
+        if (block instanceof BlockBarrel) {
+            bukkitPlayer.incrementStatistic(Statistic.OPEN_BARREL);
+        }
+
+        // AnyChest only - SilentChest not active, container unsupported, or unnecessary.
+        if (!silentchest || player.playerInteractManager.getGameMode() == EnumGamemode.SPECTATOR) {
+            player.openContainer(tileInventory);
+            return true;
+        }
+
+        // SilentChest requires access to setting players' gamemode directly.
+        if (this.playerInteractManagerGamemode == null) {
+            return false;
+        }
+
+        if (tile instanceof TileEntityLootable) {
+            TileEntityLootable lootable = (TileEntityLootable) tile;
+            if (lootable.lootTable != null) {
+                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                return false;
+            }
+        }
+
+        EnumGamemode gamemode = player.playerInteractManager.getGameMode();
+        this.forceGameMode(player, EnumGamemode.SPECTATOR);
+        player.openContainer(tileInventory);
+        this.forceGameMode(player, gamemode);
+        return true;
+    }
+
+    @Override
+    public void deactivateContainer(@NotNull final Player bukkitPlayer) {
+        if (this.playerInteractManagerGamemode == null) {
+            return;
+        }
+
+        InventoryView view = bukkitPlayer.getOpenInventory();
+        switch (view.getType()) {
+            case CHEST:
+            case ENDER_CHEST:
+            case SHULKER_BOX:
+            case BARREL:
+                break;
+            default:
+                return;
+        }
+
+        EntityPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        EnumGamemode gamemode = player.playerInteractManager.getGameMode();
+        this.forceGameMode(player, EnumGamemode.SPECTATOR);
+        player.activeContainer.b(player);
+        player.activeContainer.a(player, false);
+        player.activeContainer.transferTo(player.defaultContainer, player.getBukkitEntity());
+        player.activeContainer = player.defaultContainer;
+        this.forceGameMode(player, gamemode);
+    }
+
+    private void forceGameMode(final EntityPlayer player, final EnumGamemode gameMode) {
+        if (this.playerInteractManagerGamemode == null) {
+            // No need to warn repeatedly, error on startup and lack of function should be enough.
+            return;
+        }
+        try {
+            if (!this.playerInteractManagerGamemode.isAccessible()) {
+                // Just in case, ensure accessible.
+                this.playerInteractManagerGamemode.setAccessible(true);
+            }
+            this.playerInteractManagerGamemode.set(player.playerInteractManager, gameMode);
+        } catch (IllegalArgumentException | IllegalAccessException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

internal/v1_16_R3/src/main/java/com/lishid/openinv/internal/v1_16_R3/OpenPlayer.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_16_R3;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import net.minecraft.server.v1_16_R3.EntityPlayer;
+import net.minecraft.server.v1_16_R3.NBTCompressedStreamTools;
+import net.minecraft.server.v1_16_R3.NBTTagCompound;
+import net.minecraft.server.v1_16_R3.WorldNBTStorage;
+import org.apache.logging.log4j.LogManager;
+import org.bukkit.craftbukkit.v1_16_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+
+public class OpenPlayer extends CraftPlayer {
+
+    public OpenPlayer(CraftServer server, EntityPlayer entity) {
+        super(server, entity);
+    }
+
+    @Override
+    public void loadData() {
+        // See CraftPlayer#loadData
+        NBTTagCompound loaded = this.server.getHandle().playerFileData.load(this.getHandle());
+        if (loaded != null) {
+            readExtraData(loaded);
+        }
+    }
+
+    @Override
+    public void saveData() {
+        EntityPlayer player = this.getHandle();
+        // See net.minecraft.server.WorldNBTStorage#save(EntityPlayer)
+        try {
+            WorldNBTStorage worldNBTStorage = player.server.getPlayerList().playerFileData;
+
+            NBTTagCompound playerData = player.save(new NBTTagCompound());
+            setExtraData(playerData);
+
+            if (!isOnline()) {
+                // Special case: save old vehicle data
+                NBTTagCompound oldData = worldNBTStorage.load(player);
+
+                if (oldData != null && oldData.hasKeyOfType("RootVehicle", 10)) {
+                    // See net.minecraft.server.PlayerList#a(NetworkManager, EntityPlayer) and net.minecraft.server.EntityPlayer#b(NBTTagCompound)
+                    playerData.set("RootVehicle", oldData.getCompound("RootVehicle"));
+                }
+            }
+
+            File file = new File(worldNBTStorage.getPlayerDir(), player.getUniqueIDString() + ".dat.tmp");
+            File file1 = new File(worldNBTStorage.getPlayerDir(), player.getUniqueIDString() + ".dat");
+
+            NBTCompressedStreamTools.a(playerData, new FileOutputStream(file));
+
+            if (file1.exists() && !file1.delete() || !file.renameTo(file1)) {
+                LogManager.getLogger().warn("Failed to save player data for {}", player.getDisplayName().getString());
+            }
+
+        } catch (Exception e) {
+            LogManager.getLogger().warn("Failed to save player data for {}", player.getDisplayName().getString());
+        }
+    }
+
+}

internal/v1_16_R3/src/main/java/com/lishid/openinv/internal/v1_16_R3/PlayerDataManager.java

@@ -0,0 +1,235 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_16_R3;
+
+import com.lishid.openinv.internal.IPlayerDataManager;
+import com.lishid.openinv.internal.ISpecialInventory;
+import com.lishid.openinv.internal.OpenInventoryView;
+import com.mojang.authlib.GameProfile;
+import java.lang.reflect.Field;
+import net.minecraft.server.v1_16_R3.ChatComponentText;
+import net.minecraft.server.v1_16_R3.Container;
+import net.minecraft.server.v1_16_R3.Containers;
+import net.minecraft.server.v1_16_R3.Entity;
+import net.minecraft.server.v1_16_R3.EntityPlayer;
+import net.minecraft.server.v1_16_R3.MinecraftServer;
+import net.minecraft.server.v1_16_R3.PacketPlayOutOpenWindow;
+import net.minecraft.server.v1_16_R3.PlayerInteractManager;
+import net.minecraft.server.v1_16_R3.World;
+import net.minecraft.server.v1_16_R3.WorldServer;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.Server;
+import org.bukkit.craftbukkit.v1_16_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftContainer;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryView;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class PlayerDataManager implements IPlayerDataManager {
+
+    private @Nullable Field bukkitEntity;
+
+    public PlayerDataManager() {
+        try {
+            bukkitEntity = Entity.class.getDeclaredField("bukkitEntity");
+        } catch (NoSuchFieldException e) {
+            System.out.println("Unable to obtain field to inject custom save process - players' mounts may be deleted when loaded.");
+            e.printStackTrace();
+            bukkitEntity = null;
+        }
+    }
+
+    public static @NotNull EntityPlayer getHandle(final Player player) {
+        if (player instanceof CraftPlayer) {
+            return ((CraftPlayer) player).getHandle();
+        }
+
+        Server server = player.getServer();
+        EntityPlayer nmsPlayer = null;
+
+        if (server instanceof CraftServer) {
+            nmsPlayer = ((CraftServer) server).getHandle().getPlayer(player.getName());
+        }
+
+        if (nmsPlayer == null) {
+            // Could use reflection to examine fields, but it's honestly not worth the bother.
+            throw new RuntimeException("Unable to fetch EntityPlayer from provided Player implementation");
+        }
+
+        return nmsPlayer;
+    }
+
+    @Override
+    public @Nullable Player loadPlayer(@NotNull final OfflinePlayer offline) {
+        // Ensure player has data
+        if (!offline.hasPlayedBefore()) {
+            return null;
+        }
+
+        // Create a profile and entity to load the player data
+        // See net.minecraft.server.PlayerList#attemptLogin
+        GameProfile profile = new GameProfile(offline.getUniqueId(),
+                offline.getName() != null ? offline.getName() : offline.getUniqueId().toString());
+        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
+        WorldServer worldServer = server.getWorldServer(World.OVERWORLD);
+
+        if (worldServer == null) {
+            return null;
+        }
+
+        EntityPlayer entity = new EntityPlayer(server, worldServer, profile, new PlayerInteractManager(worldServer));
+
+        try {
+            injectPlayer(entity);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+
+        // Get the bukkit entity
+        Player target = entity.getBukkitEntity();
+        if (target != null) {
+            // Load data
+            target.loadData();
+        }
+        // Return the entity
+        return target;
+    }
+
+    void injectPlayer(EntityPlayer player) throws IllegalAccessException {
+        if (bukkitEntity == null) {
+            return;
+        }
+
+        bukkitEntity.setAccessible(true);
+
+        bukkitEntity.set(player, new OpenPlayer(player.server.server, player));
+    }
+
+    @NotNull
+    @Override
+    public Player inject(@NotNull Player player) {
+        try {
+            EntityPlayer nmsPlayer = getHandle(player);
+            injectPlayer(nmsPlayer);
+            return nmsPlayer.getBukkitEntity();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+            return player;
+        }
+    }
+
+    @Nullable
+    @Override
+    public InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
+
+        EntityPlayer nmsPlayer = getHandle(player);
+
+        if (nmsPlayer.playerConnection == null) {
+            return null;
+        }
+
+        InventoryView view = getView(player, inventory);
+
+        if (view == null) {
+            return player.openInventory(inventory.getBukkitInventory());
+        }
+
+        Container container = new CraftContainer(view, nmsPlayer, nmsPlayer.nextContainerCounter()) {
+            @Override
+            public Containers<?> getType() {
+                return getContainers(inventory.getBukkitInventory().getSize());
+            }
+        };
+
+        container.setTitle(new ChatComponentText(view.getTitle()));
+        container = CraftEventFactory.callInventoryOpenEvent(nmsPlayer, container);
+
+        if (container == null) {
+            return null;
+        }
+
+        nmsPlayer.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, container.getType(),
+                new ChatComponentText(container.getBukkitView().getTitle())));
+        nmsPlayer.activeContainer = container;
+        container.addSlotListener(nmsPlayer);
+
+        return container.getBukkitView();
+
+    }
+
+    private @Nullable InventoryView getView(Player player, ISpecialInventory inventory) {
+        if (inventory instanceof SpecialEnderChest) {
+            return new OpenInventoryView(player, inventory, "container.enderchest", "'s Ender Chest");
+        } else if (inventory instanceof SpecialPlayerInventory) {
+            return new OpenInventoryView(player, inventory, "container.player", "'s Inventory");
+        } else {
+            return null;
+        }
+    }
+
+    static @NotNull Containers<?> getContainers(int inventorySize) {
+        switch (inventorySize) {
+            case 9:
+                return Containers.GENERIC_9X1;
+            case 18:
+                return Containers.GENERIC_9X2;
+            case 36:
+                return Containers.GENERIC_9X4;
+            case 41: // PLAYER
+            case 45:
+                return Containers.GENERIC_9X5;
+            case 54:
+                return Containers.GENERIC_9X6;
+            case 27:
+            default:
+                return Containers.GENERIC_9X3;
+        }
+    }
+
+    @Override
+    public int convertToPlayerSlot(InventoryView view, int rawSlot) {
+        int topSize = view.getTopInventory().getSize();
+        if (topSize <= rawSlot) {
+            // Slot is not inside special inventory, use Bukkit logic.
+            return view.convertSlot(rawSlot);
+        }
+
+        // Main inventory, slots 0-26 -> 9-35
+        if (rawSlot < 27) {
+            return rawSlot + 9;
+        }
+        // Hotbar, slots 27-35 -> 0-8
+        if (rawSlot < 36) {
+            return rawSlot - 27;
+        }
+        // Armor, slots 36-39 -> 39-36
+        if (rawSlot < 40) {
+            return 36 + (39 - rawSlot);
+        }
+        // Off hand
+        if (rawSlot == 40) {
+            return 40;
+        }
+        // Drop slots, "out of inventory"
+        return -1;
+    }
+
+}

internal/v1_16_R3/src/main/java/com/lishid/openinv/internal/v1_16_R3/SpecialEnderChest.java

@@ -0,0 +1,261 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_16_R3;
+
+import com.lishid.openinv.internal.ISpecialEnderChest;
+import java.util.List;
+import net.minecraft.server.v1_16_R3.AutoRecipeStackManager;
+import net.minecraft.server.v1_16_R3.ContainerUtil;
+import net.minecraft.server.v1_16_R3.EntityHuman;
+import net.minecraft.server.v1_16_R3.EntityPlayer;
+import net.minecraft.server.v1_16_R3.IInventoryListener;
+import net.minecraft.server.v1_16_R3.InventoryEnderChest;
+import net.minecraft.server.v1_16_R3.ItemStack;
+import net.minecraft.server.v1_16_R3.NonNullList;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialEnderChest extends InventoryEnderChest implements ISpecialEnderChest {
+
+    private final CraftInventory inventory;
+    private EntityPlayer owner;
+    private NonNullList<ItemStack> items;
+    private boolean playerOnline;
+
+    public SpecialEnderChest(final Player player, final Boolean online) {
+        super(PlayerDataManager.getHandle(player));
+        this.inventory = new CraftInventory(this);
+        this.owner = PlayerDataManager.getHandle(player);
+        this.playerOnline = online;
+        this.items = this.owner.getEnderChest().items;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return inventory;
+    }
+
+    @Override
+    public boolean isInUse() {
+        return !this.getViewers().isEmpty();
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull final Player player) {
+        if (!this.playerOnline) {
+            try {
+                this.owner = PlayerDataManager.getHandle(player);
+                InventoryEnderChest enderChest = owner.getEnderChest();
+                for (int i = 0; i < enderChest.getSize(); ++i) {
+                    enderChest.setItem(i, this.items.get(i));
+                }
+                this.items = enderChest.items;
+            } catch (Exception ignored) {}
+            this.playerOnline = true;
+        }
+    }
+
+    @Override
+    public @NotNull Player getPlayer() {
+        return owner.getBukkitEntity();
+    }
+
+    @Override
+    public void update() {
+        this.owner.getEnderChest().update();
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.items;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.owner.getEnderChest().onOpen(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.owner.getEnderChest().onClose(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.owner.getEnderChest().getViewers();
+    }
+
+    @Override
+    public void setMaxStackSize(int i) {
+        this.owner.getEnderChest().setMaxStackSize(i);
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.owner.getEnderChest().getOwner();
+    }
+
+    @Override
+    public @Nullable Location getLocation() {
+        return null;
+    }
+
+    @Override
+    public void a(IInventoryListener iinventorylistener) {
+        this.owner.getEnderChest().a(iinventorylistener);
+    }
+
+    @Override
+    public void b(IInventoryListener iinventorylistener) {
+        this.owner.getEnderChest().b(iinventorylistener);
+    }
+
+    @Override
+    public ItemStack getItem(int i) {
+        return i >= 0 && i < this.items.size() ? this.items.get(i) : ItemStack.b;
+    }
+
+    @Override
+    public ItemStack splitStack(int i, int j) {
+        ItemStack itemstack = ContainerUtil.a(this.items, i, j);
+        if (!itemstack.isEmpty()) {
+            this.update();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public ItemStack a(ItemStack itemstack) {
+        ItemStack itemstack1 = itemstack.cloneItemStack();
+
+        for (int i = 0; i < this.getSize(); ++i) {
+            ItemStack itemstack2 = this.getItem(i);
+            if (itemstack2.isEmpty()) {
+                this.setItem(i, itemstack1);
+                this.update();
+                return ItemStack.b;
+            }
+
+            if (ItemStack.c(itemstack2, itemstack1)) {
+                int j = Math.min(this.getMaxStackSize(), itemstack2.getMaxStackSize());
+                int k = Math.min(itemstack1.getCount(), j - itemstack2.getCount());
+                if (k > 0) {
+                    itemstack2.add(k);
+                    itemstack1.subtract(k);
+                    if (itemstack1.isEmpty()) {
+                        this.update();
+                        return ItemStack.b;
+                    }
+                }
+            }
+        }
+
+        if (itemstack1.getCount() != itemstack.getCount()) {
+            this.update();
+        }
+
+        return itemstack1;
+    }
+
+    @Override
+    public ItemStack splitWithoutUpdate(int i) {
+        ItemStack itemstack = this.items.get(i);
+        if (itemstack.isEmpty()) {
+            return ItemStack.b;
+        } else {
+            this.items.set(i, ItemStack.b);
+            return itemstack;
+        }
+    }
+
+    @Override
+    public void setItem(int i, ItemStack itemstack) {
+        this.items.set(i, itemstack);
+        if (!itemstack.isEmpty() && itemstack.getCount() > this.getMaxStackSize()) {
+            itemstack.setCount(this.getMaxStackSize());
+        }
+
+        this.update();
+    }
+
+    @Override
+    public int getSize() {
+        return this.owner.getEnderChest().getSize();
+    }
+
+    @Override
+    public boolean isEmpty() {
+
+        for (ItemStack itemstack : this.items) {
+            if (!itemstack.isEmpty()) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    @Override
+    public int getMaxStackSize() {
+        return 64;
+    }
+
+    @Override
+    public boolean a(EntityHuman entityhuman) {
+        return true;
+    }
+
+    @Override
+    public void startOpen(EntityHuman entityhuman) {
+    }
+
+    @Override
+    public void closeContainer(EntityHuman entityhuman) {
+    }
+
+    @Override
+    public boolean b(int i, ItemStack itemstack) {
+        return true;
+    }
+
+    @Override
+    public void clear() {
+        this.items.clear();
+    }
+
+    @Override
+    public void a(AutoRecipeStackManager autorecipestackmanager) {
+
+        for (ItemStack itemstack : this.items) {
+            autorecipestackmanager.b(itemstack);
+        }
+
+    }
+
+}

internal/v1_16_R3/src/main/java/com/lishid/openinv/internal/v1_16_R3/SpecialPlayerInventory.java

@@ -0,0 +1,738 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_16_R3;
+
+import com.google.common.collect.ImmutableList;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import java.util.Iterator;
+import java.util.List;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import net.minecraft.server.v1_16_R3.AutoRecipeStackManager;
+import net.minecraft.server.v1_16_R3.ChatMessage;
+import net.minecraft.server.v1_16_R3.ContainerUtil;
+import net.minecraft.server.v1_16_R3.CrashReport;
+import net.minecraft.server.v1_16_R3.CrashReportSystemDetails;
+import net.minecraft.server.v1_16_R3.DamageSource;
+import net.minecraft.server.v1_16_R3.EntityHuman;
+import net.minecraft.server.v1_16_R3.EntityPlayer;
+import net.minecraft.server.v1_16_R3.EnumItemSlot;
+import net.minecraft.server.v1_16_R3.IBlockData;
+import net.minecraft.server.v1_16_R3.IChatBaseComponent;
+import net.minecraft.server.v1_16_R3.IInventory;
+import net.minecraft.server.v1_16_R3.Item;
+import net.minecraft.server.v1_16_R3.ItemArmor;
+import net.minecraft.server.v1_16_R3.ItemStack;
+import net.minecraft.server.v1_16_R3.NBTTagCompound;
+import net.minecraft.server.v1_16_R3.NBTTagList;
+import net.minecraft.server.v1_16_R3.NonNullList;
+import net.minecraft.server.v1_16_R3.PacketPlayOutSetSlot;
+import net.minecraft.server.v1_16_R3.PlayerInventory;
+import net.minecraft.server.v1_16_R3.ReportedException;
+import net.minecraft.server.v1_16_R3.World;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialPlayerInventory extends PlayerInventory implements ISpecialPlayerInventory {
+
+    private final CraftInventory inventory;
+    private boolean playerOnline;
+    private EntityHuman player;
+    private NonNullList<ItemStack> items, armor, extraSlots;
+    private List<NonNullList<ItemStack>> f;
+
+    public SpecialPlayerInventory(final Player bukkitPlayer, final Boolean online) {
+        super(PlayerDataManager.getHandle(bukkitPlayer));
+        this.inventory = new CraftInventory(this);
+        this.playerOnline = online;
+        this.player = super.player;
+        this.items = this.player.inventory.items;
+        this.armor = this.player.inventory.armor;
+        this.extraSlots = this.player.inventory.extraSlots;
+        this.f = ImmutableList.of(this.items, this.armor, this.extraSlots);
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull final Player player) {
+        if (!this.playerOnline) {
+            EntityPlayer entityPlayer = PlayerDataManager.getHandle(player);
+            entityPlayer.inventory.transaction.addAll(this.transaction);
+            this.player = entityPlayer;
+            for (int i = 0; i < getSize(); ++i) {
+                this.player.inventory.setItem(i, getRawItem(i));
+            }
+            this.player.inventory.itemInHandIndex = this.itemInHandIndex;
+            this.items = this.player.inventory.items;
+            this.armor = this.player.inventory.armor;
+            this.extraSlots = this.player.inventory.extraSlots;
+            this.f = ImmutableList.of(this.items, this.armor, this.extraSlots);
+            this.playerOnline = true;
+        }
+    }
+
+    @Override
+    public boolean a(final EntityHuman entityhuman) {
+        return true;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return this.inventory;
+    }
+
+    @Override
+    public ItemStack getItem(int i) {
+        List<ItemStack> list = this.items;
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.armor;
+        } else {
+            i = this.getReversedItemSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.extraSlots;
+        } else if (list == this.armor) {
+            i = this.getReversedArmorSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            return ItemStack.b;
+        }
+
+        return list.get(i);
+    }
+
+    private ItemStack getRawItem(int i) {
+        NonNullList<ItemStack> list = null;
+        for (NonNullList<ItemStack> next : this.f) {
+            if (i < next.size()) {
+                list = next;
+                break;
+            }
+            i -= next.size();
+        }
+
+        return list == null ? ItemStack.b : list.get(i);
+    }
+
+    @Override
+    public IChatBaseComponent getDisplayName() {
+        return new ChatMessage(this.player.getName());
+    }
+
+    @Override
+    public boolean hasCustomName() {
+        return false;
+    }
+
+    private int getReversedArmorSlotNum(final int i) {
+        if (i == 0) {
+            return 3;
+        }
+        if (i == 1) {
+            return 2;
+        }
+        if (i == 2) {
+            return 1;
+        }
+        if (i == 3) {
+            return 0;
+        }
+        return i;
+    }
+
+    private int getReversedItemSlotNum(final int i) {
+        if (i >= 27) {
+            return i - 27;
+        }
+        return i + 9;
+    }
+
+    @Override
+    public int getSize() {
+        return 45;
+    }
+
+    @Override
+    public boolean isInUse() {
+        return !this.getViewers().isEmpty();
+    }
+
+    @Override
+    public void setItem(int i, final ItemStack itemstack) {
+        List<ItemStack> list = this.items;
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.armor;
+        } else {
+            i = this.getReversedItemSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.extraSlots;
+        } else if (list == this.armor) {
+            i = this.getReversedArmorSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            this.player.drop(itemstack, true);
+            return;
+        }
+
+        list.set(i, itemstack);
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public @NotNull HumanEntity getPlayer() {
+        return this.player.getBukkitEntity();
+    }
+
+    @Override
+    public ItemStack splitStack(int i, final int j) {
+        List<ItemStack> list = this.items;
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.armor;
+        } else {
+            i = this.getReversedItemSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.extraSlots;
+        } else if (list == this.armor) {
+            i = this.getReversedArmorSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            return ItemStack.b;
+        }
+
+        return list.get(i).isEmpty() ? ItemStack.b : ContainerUtil.a(list, i, j);
+    }
+
+    @Override
+    public ItemStack splitWithoutUpdate(int i) {
+        List<ItemStack> list = this.items;
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.armor;
+        } else {
+            i = this.getReversedItemSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.extraSlots;
+        } else if (list == this.armor) {
+            i = this.getReversedArmorSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            return ItemStack.b;
+        }
+
+        if (!list.get(i).isEmpty()) {
+            ItemStack itemstack = list.get(i);
+
+            list.set(i, ItemStack.b);
+            return itemstack;
+        }
+
+        return ItemStack.b;
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.f.stream().flatMap(List::stream).collect(Collectors.toList());
+    }
+
+    @Override
+    public List<ItemStack> getArmorContents() {
+        return this.armor;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.transaction.add(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.transaction.remove(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.transaction;
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.player.getBukkitEntity();
+    }
+
+    @Override
+    public Location getLocation() {
+        return this.player.getBukkitEntity().getLocation();
+    }
+
+    @Override
+    public ItemStack getItemInHand() {
+        return d(this.itemInHandIndex) ? this.items.get(this.itemInHandIndex) : ItemStack.b;
+    }
+
+    private boolean isSimilarAndNotFull(ItemStack itemstack, ItemStack itemstack1) {
+        return !itemstack.isEmpty() && this.b(itemstack, itemstack1) && itemstack.isStackable() && itemstack.getCount() < itemstack.getMaxStackSize() && itemstack.getCount() < this.getMaxStackSize();
+    }
+
+    private boolean b(ItemStack itemstack, ItemStack itemstack1) {
+        return itemstack.getItem() == itemstack1.getItem() && ItemStack.equals(itemstack, itemstack1);
+    }
+
+    @Override
+    public int canHold(ItemStack itemstack) {
+        int remains = itemstack.getCount();
+
+        for (int i = 0; i < this.items.size(); ++i) {
+            ItemStack itemstack1 = this.getItem(i);
+            if (itemstack1.isEmpty()) {
+                return itemstack.getCount();
+            }
+
+            if (!this.isSimilarAndNotFull(itemstack, itemstack1)) {
+                remains -= Math.min(itemstack1.getMaxStackSize(), this.getMaxStackSize()) - itemstack1.getCount();
+            }
+
+            if (remains <= 0) {
+                return itemstack.getCount();
+            }
+        }
+
+        ItemStack offhandItemStack = this.getItem(this.items.size() + this.armor.size());
+        if (this.isSimilarAndNotFull(offhandItemStack, itemstack)) {
+            remains -= Math.min(offhandItemStack.getMaxStackSize(), this.getMaxStackSize()) - offhandItemStack.getCount();
+        }
+
+        return itemstack.getCount() - remains;
+    }
+
+    @Override
+    public int getFirstEmptySlotIndex() {
+        for (int i = 0; i < this.items.size(); ++i) {
+            if (this.items.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public void c(int i) {
+        this.itemInHandIndex = this.i();
+        ItemStack itemstack = this.items.get(this.itemInHandIndex);
+        this.items.set(this.itemInHandIndex, this.items.get(i));
+        this.items.set(i, itemstack);
+    }
+
+    @Override
+    public int c(ItemStack itemstack) {
+        for (int i = 0; i < this.items.size(); ++i) {
+            ItemStack itemstack1 = this.items.get(i);
+            if (!this.items.get(i).isEmpty() && this.b(itemstack, this.items.get(i)) && !this.items.get(i).f() && !itemstack1.hasEnchantments() && !itemstack1.hasName()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int i() {
+        int i;
+        int j;
+        for (j = 0; j < 9; ++j) {
+            i = (this.itemInHandIndex + j) % 9;
+            if (this.items.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        for (j = 0; j < 9; ++j) {
+            i = (this.itemInHandIndex + j) % 9;
+            if (!this.items.get(i).hasEnchantments()) {
+                return i;
+            }
+        }
+
+        return this.itemInHandIndex;
+    }
+
+    @Override
+    public int a(Predicate<ItemStack> predicate, int i, IInventory iinventory) {
+        byte b0 = 0;
+        boolean flag = i == 0;
+        int j = b0 + ContainerUtil.a(this, predicate, i - b0, flag);
+        j += ContainerUtil.a(iinventory, predicate, i - j, flag);
+        j += ContainerUtil.a(this.getCarried(), predicate, i - j, flag);
+        if (this.getCarried().isEmpty()) {
+            this.setCarried(ItemStack.b);
+        }
+
+        return j;
+    }
+
+    private int i(ItemStack itemstack) {
+        int i = this.firstPartial(itemstack);
+        if (i == -1) {
+            i = this.getFirstEmptySlotIndex();
+        }
+
+        return i == -1 ? itemstack.getCount() : this.d(i, itemstack);
+    }
+
+    private int d(int i, ItemStack itemstack) {
+        Item item = itemstack.getItem();
+        int j = itemstack.getCount();
+        ItemStack itemstack1 = this.getItem(i);
+        if (itemstack1.isEmpty()) {
+            itemstack1 = new ItemStack(item, 0);
+            NBTTagCompound tag = itemstack.getTag();
+            if (tag != null) {
+                itemstack1.setTag(tag.clone());
+            }
+
+            this.setItem(i, itemstack1);
+        }
+
+        int k = j;
+        if (j > itemstack1.getMaxStackSize() - itemstack1.getCount()) {
+            k = itemstack1.getMaxStackSize() - itemstack1.getCount();
+        }
+
+        if (k > this.getMaxStackSize() - itemstack1.getCount()) {
+            k = this.getMaxStackSize() - itemstack1.getCount();
+        }
+
+        if (k != 0) {
+            j -= k;
+            itemstack1.add(k);
+            itemstack1.d(5);
+        }
+        return j;
+    }
+
+    @Override
+    public int firstPartial(ItemStack itemstack) {
+        if (this.isSimilarAndNotFull(this.getItem(this.itemInHandIndex), itemstack)) {
+            return this.itemInHandIndex;
+        } else if (this.isSimilarAndNotFull(this.getItem(40), itemstack)) {
+            return 40;
+        } else {
+            for (int i = 0; i < this.items.size(); ++i) {
+                if (this.isSimilarAndNotFull(this.items.get(i), itemstack)) {
+                    return i;
+                }
+            }
+
+            return -1;
+        }
+    }
+
+    @Override
+    public void j() {
+
+        for (List<ItemStack> itemStacks : this.f) {
+            for (int i = 0; i < itemStacks.size(); ++i) {
+                if (!itemStacks.get(i).isEmpty()) {
+                    itemStacks.get(i).a(this.player.world, this.player, i, this.itemInHandIndex == i);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public boolean pickup(ItemStack itemstack) {
+        return this.c(-1, itemstack);
+    }
+
+    @Override
+    public boolean c(int i, ItemStack itemstack) {
+        if (itemstack.isEmpty()) {
+            return false;
+        } else {
+            try {
+                if (itemstack.f()) {
+                    if (i == -1) {
+                        i = this.getFirstEmptySlotIndex();
+                    }
+
+                    if (i >= 0) {
+                        this.items.set(i, itemstack.cloneItemStack());
+                        this.items.get(i).d(5);
+                        itemstack.setCount(0);
+                        return true;
+                    } else if (this.player.abilities.canInstantlyBuild) {
+                        itemstack.setCount(0);
+                        return true;
+                    } else {
+                        return false;
+                    }
+                } else {
+                    int j;
+                    do {
+                        j = itemstack.getCount();
+                        if (i == -1) {
+                            itemstack.setCount(this.i(itemstack));
+                        } else {
+                            itemstack.setCount(this.d(i, itemstack));
+                        }
+                    } while(!itemstack.isEmpty() && itemstack.getCount() < j);
+
+                    if (itemstack.getCount() == j && this.player.abilities.canInstantlyBuild) {
+                        itemstack.setCount(0);
+                        return true;
+                    } else {
+                        return itemstack.getCount() < j;
+                    }
+                }
+            } catch (Throwable var6) {
+                CrashReport crashreport = CrashReport.a(var6, "Adding item to inventory");
+                CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Item being added");
+                crashreportsystemdetails.a("Item ID", Item.getId(itemstack.getItem()));
+                crashreportsystemdetails.a("Item data", itemstack.getDamage());
+                crashreportsystemdetails.a("Item name", () -> itemstack.getName().getString());
+                throw new ReportedException(crashreport);
+            }
+        }
+    }
+
+    @Override
+    public void a(World world, ItemStack itemstack) {
+        if (!world.isClientSide) {
+            while(!itemstack.isEmpty()) {
+                int i = this.firstPartial(itemstack);
+                if (i == -1) {
+                    i = this.getFirstEmptySlotIndex();
+                }
+
+                if (i == -1) {
+                    this.player.drop(itemstack, false);
+                    break;
+                }
+
+                int j = itemstack.getMaxStackSize() - this.getItem(i).getCount();
+                if (this.c(i, itemstack.cloneAndSubtract(j))) {
+                    ((EntityPlayer)this.player).playerConnection.sendPacket(new PacketPlayOutSetSlot(-2, i, this.getItem(i)));
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public void f(ItemStack itemstack) {
+
+        for (List<ItemStack> list : this.f) {
+            for (int i = 0; i < list.size(); ++i) {
+                if (list.get(i) == itemstack) {
+                    list.set(i, ItemStack.b);
+                    break;
+                }
+            }
+        }
+    }
+
+    @Override
+    public float a(IBlockData iblockdata) {
+        return this.items.get(this.itemInHandIndex).a(iblockdata);
+    }
+
+    @Override
+    public NBTTagList a(NBTTagList nbttaglist) {
+        NBTTagCompound nbttagcompound;
+        int i;
+        for (i = 0; i < this.items.size(); ++i) {
+            if (!this.items.get(i).isEmpty()) {
+                nbttagcompound = new NBTTagCompound();
+                nbttagcompound.setByte("Slot", (byte) i);
+                this.items.get(i).save(nbttagcompound);
+                nbttaglist.add(nbttagcompound);
+            }
+        }
+
+        for (i = 0; i < this.armor.size(); ++i) {
+            if (!this.armor.get(i).isEmpty()) {
+                nbttagcompound = new NBTTagCompound();
+                nbttagcompound.setByte("Slot", (byte) (i + 100));
+                this.armor.get(i).save(nbttagcompound);
+                nbttaglist.add(nbttagcompound);
+            }
+        }
+
+        for (i = 0; i < this.extraSlots.size(); ++i) {
+            if (!this.extraSlots.get(i).isEmpty()) {
+                nbttagcompound = new NBTTagCompound();
+                nbttagcompound.setByte("Slot", (byte) (i + 150));
+                this.extraSlots.get(i).save(nbttagcompound);
+                nbttaglist.add(nbttagcompound);
+            }
+        }
+
+        return nbttaglist;
+    }
+
+    @Override
+    public void b(NBTTagList nbttaglist) {
+        this.items.clear();
+        this.armor.clear();
+        this.extraSlots.clear();
+
+        for(int i = 0; i < nbttaglist.size(); ++i) {
+            NBTTagCompound nbttagcompound = nbttaglist.getCompound(i);
+            int j = nbttagcompound.getByte("Slot") & 255;
+            ItemStack itemstack = ItemStack.a(nbttagcompound);
+            if (!itemstack.isEmpty()) {
+                if (j < this.items.size()) {
+                    this.items.set(j, itemstack);
+                } else if (j >= 100 && j < this.armor.size() + 100) {
+                    this.armor.set(j - 100, itemstack);
+                } else if (j >= 150 && j < this.extraSlots.size() + 150) {
+                    this.extraSlots.set(j - 150, itemstack);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public boolean isEmpty() {
+        Iterator<ItemStack> iterator = this.items.iterator();
+
+        ItemStack itemstack;
+        while (iterator.hasNext()) {
+            itemstack = iterator.next();
+            if (!itemstack.isEmpty()) {
+                return false;
+            }
+        }
+
+        iterator = this.armor.iterator();
+
+        while (iterator.hasNext()) {
+            itemstack = iterator.next();
+            if (!itemstack.isEmpty()) {
+                return false;
+            }
+        }
+
+        iterator = this.extraSlots.iterator();
+
+        while (iterator.hasNext()) {
+            itemstack = iterator.next();
+            if (!itemstack.isEmpty()) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    @Nullable
+    @Override
+    public IChatBaseComponent getCustomName() {
+        return null;
+    }
+
+    @Override
+    public void a(DamageSource damagesource, float f) {
+        if (f > 0.0F) {
+            f /= 4.0F;
+            if (f < 1.0F) {
+                f = 1.0F;
+            }
+
+            for (int i = 0; i < this.armor.size(); ++i) {
+                ItemStack itemstack = this.armor.get(0);
+                int index = i;
+                if ((!damagesource.isFire() || !itemstack.getItem().u()) && itemstack.getItem() instanceof ItemArmor) {
+                    itemstack.damage((int) f, this.player, (entityHuman) -> entityHuman.broadcastItemBreak(EnumItemSlot.a(EnumItemSlot.Function.ARMOR, index)));
+                }
+            }
+        }
+    }
+
+    @Override
+    public void dropContents() {
+        for (List<ItemStack> itemStacks : this.f) {
+            for (int i = 0; i < itemStacks.size(); ++i) {
+                ItemStack itemstack = itemStacks.get(i);
+                if (!itemstack.isEmpty()) {
+                    itemStacks.set(i, ItemStack.b);
+                    this.player.a(itemstack, true, false);
+                }
+            }
+        }
+    }
+
+    @Override
+    public boolean h(ItemStack itemstack) {
+        return this.f.stream().flatMap(List::stream).anyMatch(itemStack1 -> !itemStack1.isEmpty() && itemStack1.doMaterialsMatch(itemstack));
+    }
+
+    @Override
+    public void a(PlayerInventory playerinventory) {
+        for (int i = 0; i < playerinventory.getSize(); ++i) {
+            this.setItem(i, playerinventory.getItem(i));
+        }
+
+        this.itemInHandIndex = playerinventory.itemInHandIndex;
+    }
+
+    @Override
+    public void clear() {
+        this.f.forEach(List::clear);
+    }
+
+    @Override
+    public void a(AutoRecipeStackManager autorecipestackmanager) {
+        for (ItemStack itemstack : this.items) {
+            autorecipestackmanager.a(itemstack);
+        }
+    }
+
+}

internal/v1_17_R1/pom.xml

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright (C) 2011-2021 lishid. All rights reserved.
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, version 3.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <artifactId>openinvparent</artifactId>
+    <groupId>com.lishid</groupId>
+    <relativePath>../../pom.xml</relativePath>
+    <version>4.1.9-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>openinvadapter1_17_R1</artifactId>
+  <name>OpenInvAdapter1_17_R1</name>
+
+  <properties>
+    <maven.compiler.source>16</maven.compiler.source>
+    <maven.compiler.target>16</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <artifactId>spigot</artifactId>
+      <groupId>org.spigotmc</groupId>
+      <scope>provided</scope>
+      <version>1.17-R0.1-SNAPSHOT</version>
+    </dependency>
+    <dependency>
+      <artifactId>openinvapi</artifactId>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>openinvplugincore</artifactId>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>annotations</artifactId>
+      <groupId>org.jetbrains</groupId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-shade-plugin</artifactId>
+        <!-- Cannot use minimizeJar until maven-shade-plugin 3.3.0 releases; ASM used does not support Java 16. -->
+        <configuration>
+          <minimizeJar>false</minimizeJar>
+        </configuration>
+      </plugin>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

internal/v1_17_R1/src/main/java/com/lishid/openinv/internal/v1_17_R1/AnySilentContainer.java

@@ -0,0 +1,249 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_17_R1;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.internal.IAnySilentContainer;
+import java.lang.reflect.Field;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import net.minecraft.core.BlockPosition;
+import net.minecraft.network.chat.ChatMessage;
+import net.minecraft.network.chat.IChatBaseComponent;
+import net.minecraft.server.level.EntityPlayer;
+import net.minecraft.server.level.PlayerInteractManager;
+import net.minecraft.world.ITileInventory;
+import net.minecraft.world.InventoryLargeChest;
+import net.minecraft.world.TileInventory;
+import net.minecraft.world.entity.player.EntityHuman;
+import net.minecraft.world.entity.player.PlayerInventory;
+import net.minecraft.world.inventory.Container;
+import net.minecraft.world.inventory.ContainerChest;
+import net.minecraft.world.inventory.Containers;
+import net.minecraft.world.inventory.InventoryEnderChest;
+import net.minecraft.world.level.EnumGamemode;
+import net.minecraft.world.level.World;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.BlockBarrel;
+import net.minecraft.world.level.block.BlockChest;
+import net.minecraft.world.level.block.BlockChestTrapped;
+import net.minecraft.world.level.block.BlockShulkerBox;
+import net.minecraft.world.level.block.entity.TileEntity;
+import net.minecraft.world.level.block.entity.TileEntityChest;
+import net.minecraft.world.level.block.entity.TileEntityEnderChest;
+import net.minecraft.world.level.block.entity.TileEntityLootable;
+import net.minecraft.world.level.block.state.IBlockData;
+import net.minecraft.world.level.block.state.properties.BlockPropertyChestType;
+import org.bukkit.Material;
+import org.bukkit.Statistic;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryView;
+import org.jetbrains.annotations.NotNull;
+
+public class AnySilentContainer implements IAnySilentContainer {
+
+    private Field playerInteractManagerGamemode;
+
+    public AnySilentContainer() {
+        try {
+            this.playerInteractManagerGamemode = PlayerInteractManager.class.getDeclaredField("b");
+            this.playerInteractManagerGamemode.setAccessible(true);
+        } catch (NoSuchFieldException | SecurityException e) {
+            Logger logger = OpenInv.getPlugin(OpenInv.class).getLogger();
+            logger.warning("Unable to directly write player gamemode! SilentChest will fail.");
+            logger.log(Level.WARNING, "Error obtaining gamemode field", e);
+        }
+    }
+
+    @Override
+    public boolean activateContainer(
+            @NotNull final Player bukkitPlayer,
+            final boolean silentchest,
+            @NotNull final org.bukkit.block.Block bukkitBlock) {
+
+        // Silent ender chest is API-only
+        if (silentchest && bukkitBlock.getType() == Material.ENDER_CHEST) {
+            bukkitPlayer.openInventory(bukkitPlayer.getEnderChest());
+            bukkitPlayer.incrementStatistic(Statistic.ENDERCHEST_OPENED);
+            return true;
+        }
+
+        EntityPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        final World world = player.getWorld();
+        final BlockPosition blockPosition = new BlockPosition(bukkitBlock.getX(), bukkitBlock.getY(), bukkitBlock.getZ());
+        final TileEntity tile = world.getTileEntity(blockPosition);
+
+        if (tile == null) {
+            return false;
+        }
+
+        if (tile instanceof TileEntityEnderChest) {
+            // Anychest ender chest. See net.minecraft.world.level.block.BlockEnderChest
+            InventoryEnderChest enderChest = player.getEnderChest();
+            enderChest.a((TileEntityEnderChest) tile);
+            player.openContainer(new TileInventory((containerCounter, playerInventory, ignored) -> {
+                Containers<?> containers = PlayerDataManager.getContainers(enderChest.getSize());
+                int rows = enderChest.getSize() / 9;
+                return new ContainerChest(containers, containerCounter, playerInventory, enderChest, rows);
+            }, new ChatMessage("container.enderchest")));
+            bukkitPlayer.incrementStatistic(Statistic.ENDERCHEST_OPENED);
+            return true;
+        }
+
+        if (!(tile instanceof ITileInventory tileInventory)) {
+            return false;
+        }
+
+        IBlockData blockData = world.getType(blockPosition);
+        Block block = blockData.getBlock();
+
+        if (block instanceof BlockChest) {
+
+            BlockPropertyChestType chestType = blockData.get(BlockChest.c);
+
+            if (chestType != BlockPropertyChestType.a) {
+
+                BlockPosition adjacentBlockPosition = blockPosition.shift(BlockChest.h(blockData));
+                IBlockData adjacentBlockData = world.getType(adjacentBlockPosition);
+
+                if (adjacentBlockData.getBlock() == block) {
+
+                    BlockPropertyChestType adjacentChestType = adjacentBlockData.get(BlockChest.c);
+
+                    if (adjacentChestType != BlockPropertyChestType.a && chestType != adjacentChestType
+                            && adjacentBlockData.get(BlockChest.b) == blockData.get(BlockChest.b)) {
+
+                        TileEntity adjacentTile = world.getTileEntity(adjacentBlockPosition);
+
+                        if (adjacentTile instanceof TileEntityChest && tileInventory instanceof  TileEntityChest) {
+                            TileEntityChest rightChest = chestType == BlockPropertyChestType.c ? ((TileEntityChest) tileInventory) : (TileEntityChest) adjacentTile;
+                            TileEntityChest leftChest = chestType == BlockPropertyChestType.c ? (TileEntityChest) adjacentTile : ((TileEntityChest) tileInventory);
+
+                            if (silentchest && (rightChest.g != null || leftChest.g != null)) {
+                                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                                return false;
+                            }
+
+                            tileInventory = new ITileInventory() {
+                                public Container createMenu(int containerCounter, PlayerInventory playerInventory, EntityHuman entityHuman) {
+                                    leftChest.d(playerInventory.l);
+                                    rightChest.d(playerInventory.l);
+                                    return ContainerChest.b(containerCounter, playerInventory, new InventoryLargeChest(rightChest, leftChest));
+                                }
+
+                                public IChatBaseComponent getScoreboardDisplayName() {
+                                    if (leftChest.hasCustomName()) {
+                                        return leftChest.getScoreboardDisplayName();
+                                    }
+                                    if (rightChest.hasCustomName()) {
+                                        return rightChest.getScoreboardDisplayName();
+                                    }
+                                    return new ChatMessage("container.chestDouble");
+                                }
+                            };
+                        }
+                    }
+                }
+            }
+
+            if (block instanceof BlockChestTrapped) {
+                bukkitPlayer.incrementStatistic(Statistic.TRAPPED_CHEST_TRIGGERED);
+            } else {
+                bukkitPlayer.incrementStatistic(Statistic.CHEST_OPENED);
+            }
+        }
+
+        if (block instanceof BlockShulkerBox) {
+            bukkitPlayer.incrementStatistic(Statistic.SHULKER_BOX_OPENED);
+        }
+
+        if (block instanceof BlockBarrel) {
+            bukkitPlayer.incrementStatistic(Statistic.OPEN_BARREL);
+        }
+
+        // AnyChest only - SilentChest not active, container unsupported, or unnecessary.
+        if (!silentchest || player.d.getGameMode() == EnumGamemode.d) {
+            player.openContainer(tileInventory);
+            return true;
+        }
+
+        // SilentChest requires access to setting players' gamemode directly.
+        if (this.playerInteractManagerGamemode == null) {
+            return false;
+        }
+
+        if (tile instanceof TileEntityLootable lootable) {
+            if (lootable.g != null) {
+                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                return false;
+            }
+        }
+
+        EnumGamemode gamemode = player.d.getGameMode();
+        this.forceGameMode(player, EnumGamemode.d);
+        player.openContainer(tileInventory);
+        this.forceGameMode(player, gamemode);
+        return true;
+    }
+
+    @Override
+    public void deactivateContainer(@NotNull final Player bukkitPlayer) {
+        if (this.playerInteractManagerGamemode == null) {
+            return;
+        }
+
+        InventoryView view = bukkitPlayer.getOpenInventory();
+        switch (view.getType()) {
+            case CHEST:
+            case ENDER_CHEST:
+            case SHULKER_BOX:
+            case BARREL:
+                break;
+            default:
+                return;
+        }
+
+        EntityPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        // Force game mode change without informing plugins or players.
+        EnumGamemode gamemode = player.d.getGameMode();
+        this.forceGameMode(player, EnumGamemode.d);
+
+        // See EntityPlayer#closeInventory - can't call or we'd recursively deactivate.
+        player.bV.b(player);
+        player.bU.a(player.bV);
+        player.bV = player.bU;
+
+        // Revert forced game mode.
+        this.forceGameMode(player, gamemode);
+    }
+
+    private void forceGameMode(final EntityPlayer player, final EnumGamemode gameMode) {
+        if (this.playerInteractManagerGamemode == null) {
+            // No need to warn repeatedly, error on startup and lack of function should be enough.
+            return;
+        }
+        try {
+            this.playerInteractManagerGamemode.setAccessible(true);
+            this.playerInteractManagerGamemode.set(player.d, gameMode);
+        } catch (IllegalArgumentException | IllegalAccessException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

internal/v1_17_R1/src/main/java/com/lishid/openinv/internal/v1_17_R1/OpenPlayer.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_17_R1;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import net.minecraft.nbt.NBTCompressedStreamTools;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.server.level.EntityPlayer;
+import net.minecraft.world.level.storage.WorldNBTStorage;
+import org.apache.logging.log4j.LogManager;
+import org.bukkit.craftbukkit.v1_17_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
+
+public class OpenPlayer extends CraftPlayer {
+
+    public OpenPlayer(CraftServer server, EntityPlayer entity) {
+        super(server, entity);
+    }
+
+    @Override
+    public void loadData() {
+        // See CraftPlayer#loadData
+        NBTTagCompound loaded = this.server.getHandle().r.load(this.getHandle());
+        if (loaded != null) {
+            readExtraData(loaded);
+        }
+    }
+
+    @Override
+    public void saveData() {
+        EntityPlayer player = this.getHandle();
+        // See net.minecraft.world.level.storage.WorldNBTStorage#save(EntityHuman)
+        try {
+            WorldNBTStorage worldNBTStorage = player.c.getPlayerList().r;
+
+            NBTTagCompound playerData = player.save(new NBTTagCompound());
+            setExtraData(playerData);
+
+            if (!isOnline()) {
+                // Special case: save old vehicle data
+                NBTTagCompound oldData = worldNBTStorage.load(player);
+
+                if (oldData != null && oldData.hasKeyOfType("RootVehicle", 10)) {
+                    // See net.minecraft.server.PlayerList#a(NetworkManager, EntityPlayer) and net.minecraft.server.EntityPlayer#b(NBTTagCompound)
+                    playerData.set("RootVehicle", oldData.getCompound("RootVehicle"));
+                }
+            }
+
+            File file = new File(worldNBTStorage.getPlayerDir(), player.getUniqueIDString() + ".dat.tmp");
+            File file1 = new File(worldNBTStorage.getPlayerDir(), player.getUniqueIDString() + ".dat");
+
+            NBTCompressedStreamTools.a(playerData, new FileOutputStream(file));
+
+            if (file1.exists() && !file1.delete() || !file.renameTo(file1)) {
+                LogManager.getLogger().warn("Failed to save player data for {}", player.getDisplayName().getString());
+            }
+
+        } catch (Exception e) {
+            LogManager.getLogger().warn("Failed to save player data for {}", player.getDisplayName().getString());
+        }
+    }
+
+}

internal/v1_17_R1/src/main/java/com/lishid/openinv/internal/v1_17_R1/PlayerDataManager.java

@@ -0,0 +1,231 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_17_R1;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.internal.IPlayerDataManager;
+import com.lishid.openinv.internal.ISpecialInventory;
+import com.lishid.openinv.internal.OpenInventoryView;
+import com.mojang.authlib.GameProfile;
+import java.lang.reflect.Field;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import net.minecraft.network.chat.ChatComponentText;
+import net.minecraft.network.protocol.game.PacketPlayOutOpenWindow;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.EntityPlayer;
+import net.minecraft.server.level.WorldServer;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.inventory.Container;
+import net.minecraft.world.inventory.Containers;
+import net.minecraft.world.level.World;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.Server;
+import org.bukkit.craftbukkit.v1_17_R1.CraftServer;
+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.entity.Player;
+import org.bukkit.inventory.InventoryView;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class PlayerDataManager implements IPlayerDataManager {
+
+    private @Nullable Field bukkitEntity;
+
+    public PlayerDataManager() {
+        try {
+            bukkitEntity = Entity.class.getDeclaredField("bukkitEntity");
+        } catch (NoSuchFieldException e) {
+            Logger logger = OpenInv.getPlugin(OpenInv.class).getLogger();
+            logger.warning("Unable to obtain field to inject custom save process - players' mounts may be deleted when loaded.");
+            logger.log(Level.WARNING, e.getMessage(), e);
+            bukkitEntity = null;
+        }
+    }
+
+    public static @NotNull EntityPlayer getHandle(final Player player) {
+        if (player instanceof CraftPlayer) {
+            return ((CraftPlayer) player).getHandle();
+        }
+
+        Server server = player.getServer();
+        EntityPlayer nmsPlayer = null;
+
+        if (server instanceof CraftServer) {
+            nmsPlayer = ((CraftServer) server).getHandle().getPlayer(player.getName());
+        }
+
+        if (nmsPlayer == null) {
+            // Could use reflection to examine fields, but it's honestly not worth the bother.
+            throw new RuntimeException("Unable to fetch EntityPlayer from provided Player implementation");
+        }
+
+        return nmsPlayer;
+    }
+
+    @Override
+    public @Nullable Player loadPlayer(@NotNull final OfflinePlayer offline) {
+        // Ensure player has data
+        if (!offline.hasPlayedBefore()) {
+            return null;
+        }
+
+        // Create a profile and entity to load the player data
+        // See net.minecraft.server.PlayerList#attemptLogin
+        GameProfile profile = new GameProfile(offline.getUniqueId(),
+                offline.getName() != null ? offline.getName() : offline.getUniqueId().toString());
+        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
+        WorldServer worldServer = server.getWorldServer(World.f);
+
+        if (worldServer == null) {
+            return null;
+        }
+
+        EntityPlayer entity = new EntityPlayer(server, worldServer, profile);
+
+        try {
+            injectPlayer(entity);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+
+        // Get the bukkit entity
+        Player target = entity.getBukkitEntity();
+        if (target != null) {
+            // Load data
+            target.loadData();
+        }
+        // Return the entity
+        return target;
+    }
+
+    void injectPlayer(EntityPlayer player) throws IllegalAccessException {
+        if (bukkitEntity == null) {
+            return;
+        }
+
+        bukkitEntity.setAccessible(true);
+
+        bukkitEntity.set(player, new OpenPlayer(player.c.server, player));
+    }
+
+    @NotNull
+    @Override
+    public Player inject(@NotNull Player player) {
+        try {
+            EntityPlayer nmsPlayer = getHandle(player);
+            injectPlayer(nmsPlayer);
+            return nmsPlayer.getBukkitEntity();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+            return player;
+        }
+    }
+
+    @Nullable
+    @Override
+    public InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
+
+        EntityPlayer nmsPlayer = getHandle(player);
+
+        if (nmsPlayer.b == null) {
+            return null;
+        }
+
+        InventoryView view = getView(player, inventory);
+
+        if (view == null) {
+            return player.openInventory(inventory.getBukkitInventory());
+        }
+
+        Container container = new CraftContainer(view, nmsPlayer, nmsPlayer.nextContainerCounter()) {
+            @Override
+            public Containers<?> getType() {
+                return getContainers(inventory.getBukkitInventory().getSize());
+            }
+        };
+
+        container.setTitle(new ChatComponentText(view.getTitle()));
+        container = CraftEventFactory.callInventoryOpenEvent(nmsPlayer, container);
+
+        if (container == null) {
+            return null;
+        }
+
+        nmsPlayer.b.sendPacket(new PacketPlayOutOpenWindow(container.j, container.getType(),
+                new ChatComponentText(container.getBukkitView().getTitle())));
+        nmsPlayer.bV = container;
+        nmsPlayer.initMenu(container);
+
+        return container.getBukkitView();
+
+    }
+
+    private @Nullable InventoryView getView(Player player, ISpecialInventory inventory) {
+        if (inventory instanceof SpecialEnderChest) {
+            return new OpenInventoryView(player, inventory, "container.enderchest", "'s Ender Chest");
+        } else if (inventory instanceof SpecialPlayerInventory) {
+            return new OpenInventoryView(player, inventory, "container.player", "'s Inventory");
+        } else {
+            return null;
+        }
+    }
+
+    static @NotNull Containers<?> getContainers(int inventorySize) {
+
+        return switch (inventorySize) {
+            case 9 -> Containers.a;
+            case 18 -> Containers.b;
+            case 36 -> Containers.d; // PLAYER
+            case 41, 45 -> Containers.e;
+            case 54 -> Containers.f;
+            default -> Containers.c; // 9x3
+        };
+    }
+
+    @Override
+    public int convertToPlayerSlot(InventoryView view, int rawSlot) {
+        int topSize = view.getTopInventory().getSize();
+        if (topSize <= rawSlot) {
+            // Slot is not inside special inventory, use Bukkit logic.
+            return view.convertSlot(rawSlot);
+        }
+
+        // Main inventory, slots 0-26 -> 9-35
+        if (rawSlot < 27) {
+            return rawSlot + 9;
+        }
+        // Hotbar, slots 27-35 -> 0-8
+        if (rawSlot < 36) {
+            return rawSlot - 27;
+        }
+        // Armor, slots 36-39 -> 39-36
+        if (rawSlot < 40) {
+            return 36 + (39 - rawSlot);
+        }
+        // Off hand
+        if (rawSlot == 40) {
+            return 40;
+        }
+        // Drop slots, "out of inventory"
+        return -1;
+    }
+
+}

internal/v1_17_R1/src/main/java/com/lishid/openinv/internal/v1_17_R1/SpecialEnderChest.java

@@ -0,0 +1,341 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_17_R1;
+
+import com.lishid.openinv.internal.ISpecialEnderChest;
+import java.util.List;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import net.minecraft.core.NonNullList;
+import net.minecraft.nbt.NBTTagList;
+import net.minecraft.server.level.EntityPlayer;
+import net.minecraft.world.ContainerUtil;
+import net.minecraft.world.IInventoryListener;
+import net.minecraft.world.entity.player.AutoRecipeStackManager;
+import net.minecraft.world.entity.player.EntityHuman;
+import net.minecraft.world.inventory.InventoryEnderChest;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.entity.TileEntityEnderChest;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialEnderChest extends InventoryEnderChest implements ISpecialEnderChest {
+
+    private final CraftInventory inventory;
+    private EntityPlayer owner;
+    private NonNullList<ItemStack> c;
+    private boolean playerOnline;
+
+    public SpecialEnderChest(final Player player, final Boolean online) {
+        super(PlayerDataManager.getHandle(player));
+        this.inventory = new CraftInventory(this);
+        this.owner = PlayerDataManager.getHandle(player);
+        this.playerOnline = online;
+        this.c = this.owner.getEnderChest().c;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return inventory;
+    }
+
+    @Override
+    public boolean isInUse() {
+        return !this.getViewers().isEmpty();
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull final Player player) {
+        if (!this.playerOnline) {
+            try {
+                this.owner = PlayerDataManager.getHandle(player);
+                InventoryEnderChest enderChest = owner.getEnderChest();
+                for (int i = 0; i < enderChest.getSize(); ++i) {
+                    enderChest.setItem(i, this.c.get(i));
+                }
+                this.c = enderChest.c;
+                enderChest.transaction.addAll(this.transaction);
+            } catch (Exception ignored) {}
+            this.playerOnline = true;
+        }
+    }
+
+    @Override
+    public @NotNull Player getPlayer() {
+        return owner.getBukkitEntity();
+    }
+
+    @Override
+    public void update() {
+        this.owner.getEnderChest().update();
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.c;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        super.onOpen(who);
+        this.owner.getEnderChest().onOpen(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        super.onClose(who);
+        this.owner.getEnderChest().onClose(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.owner.getEnderChest().getViewers();
+    }
+
+    @Override
+    public boolean a(EntityHuman entityhuman) {
+        return true;
+    }
+
+    @Override
+    public void a(TileEntityEnderChest tileentityenderchest) {
+        this.owner.getEnderChest().a(tileentityenderchest);
+    }
+
+    @Override
+    public boolean b(TileEntityEnderChest tileentityenderchest) {
+        return this.owner.getEnderChest().b(tileentityenderchest);
+    }
+
+    @Override
+    public int getMaxStackSize() {
+        return this.owner.getEnderChest().getMaxStackSize();
+    }
+
+    @Override
+    public void setMaxStackSize(int i) {
+        this.owner.getEnderChest().setMaxStackSize(i);
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.owner.getEnderChest().getOwner();
+    }
+
+    @Override
+    public @Nullable Location getLocation() {
+        return null;
+    }
+
+    @Override
+    public void a(IInventoryListener iinventorylistener) {
+        this.owner.getEnderChest().a(iinventorylistener);
+    }
+
+    @Override
+    public void b(IInventoryListener iinventorylistener) {
+        this.owner.getEnderChest().b(iinventorylistener);
+    }
+
+    @Override
+    public ItemStack getItem(int i) {
+        return i >= 0 && i < this.c.size() ? this.c.get(i) : ItemStack.b;
+    }
+
+    @Override
+    public ItemStack splitStack(int i, int j) {
+        ItemStack itemstack = ContainerUtil.a(this.c, i, j);
+        if (!itemstack.isEmpty()) {
+            this.update();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public ItemStack a(ItemStack itemstack) {
+        ItemStack itemstack1 = itemstack.cloneItemStack();
+        this.d(itemstack1);
+        if (itemstack1.isEmpty()) {
+            return ItemStack.b;
+        } else {
+            this.c(itemstack1);
+            return itemstack1.isEmpty() ? ItemStack.b : itemstack1;
+        }
+    }
+
+    private void c(ItemStack itemstack) {
+        for(int i = 0; i < this.getSize(); ++i) {
+            ItemStack itemstack1 = this.getItem(i);
+            if (itemstack1.isEmpty()) {
+                this.setItem(i, itemstack.cloneItemStack());
+                itemstack.setCount(0);
+                return;
+            }
+        }
+    }
+
+    private void d(ItemStack itemstack) {
+        for(int i = 0; i < this.getSize(); ++i) {
+            ItemStack itemstack1 = this.getItem(i);
+            if (ItemStack.e(itemstack1, itemstack)) {
+                this.a(itemstack, itemstack1);
+                if (itemstack.isEmpty()) {
+                    return;
+                }
+            }
+        }
+    }
+
+    private void a(ItemStack itemstack, ItemStack itemstack1) {
+        int i = Math.min(this.getMaxStackSize(), itemstack1.getMaxStackSize());
+        int j = Math.min(itemstack.getCount(), i - itemstack1.getCount());
+        if (j > 0) {
+            itemstack1.add(j);
+            itemstack.subtract(j);
+            this.update();
+        }
+    }
+
+    @Override
+    public ItemStack splitWithoutUpdate(int i) {
+        ItemStack itemstack = this.c.get(i);
+        if (itemstack.isEmpty()) {
+            return ItemStack.b;
+        } else {
+            this.c.set(i, ItemStack.b);
+            return itemstack;
+        }
+    }
+
+    @Override
+    public void setItem(int i, ItemStack itemstack) {
+        this.c.set(i, itemstack);
+        if (!itemstack.isEmpty() && itemstack.getCount() > this.getMaxStackSize()) {
+            itemstack.setCount(this.getMaxStackSize());
+        }
+
+        this.update();
+    }
+
+    @Override
+    public int getSize() {
+        return this.owner.getEnderChest().getSize();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return this.c.stream().allMatch(ItemStack::isEmpty);
+    }
+
+    @Override
+    public void startOpen(EntityHuman entityhuman) {
+    }
+
+    @Override
+    public void closeContainer(EntityHuman entityhuman) {
+    }
+
+    @Override
+    public boolean b(int i, ItemStack itemstack) {
+        return true;
+    }
+
+    @Override
+    public void clear() {
+        this.c.clear();
+        this.update();
+    }
+
+    @Override
+    public void a(AutoRecipeStackManager autorecipestackmanager) {
+        for (ItemStack itemstack : this.c) {
+            autorecipestackmanager.b(itemstack);
+        }
+
+    }
+
+    @Override
+    public List<ItemStack> f() {
+        List<ItemStack> list = this.c.stream().filter(Predicate.not(ItemStack::isEmpty)).collect(Collectors.toList());
+        this.clear();
+        return list;
+    }
+
+    @Override
+    public ItemStack a(Item item, int i) {
+        ItemStack itemstack = new ItemStack(item, 0);
+
+        for(int j = this.getSize() - 1; j >= 0; --j) {
+            ItemStack itemstack1 = this.getItem(j);
+            if (itemstack1.getItem().equals(item)) {
+                int k = i - itemstack.getCount();
+                ItemStack itemstack2 = itemstack1.cloneAndSubtract(k);
+                itemstack.add(itemstack2.getCount());
+                if (itemstack.getCount() == i) {
+                    break;
+                }
+            }
+        }
+
+        if (!itemstack.isEmpty()) {
+            this.update();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public boolean b(ItemStack itemStack) {
+        for (ItemStack itemStack1 : this.c) {
+            if (itemStack1.isEmpty() || ItemStack.e(itemStack1, itemStack) && itemStack1.getCount() < itemStack1.getMaxStackSize()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return this.c.stream().filter((itemStack) -> !itemStack.isEmpty()).collect(Collectors.toList()).toString();
+    }
+
+    @Override
+    public void a(NBTTagList nbttaglist) {
+        for(int i = 0; i < nbttaglist.size(); ++i) {
+            ItemStack itemstack = ItemStack.a(nbttaglist.getCompound(i));
+            if (!itemstack.isEmpty()) {
+                this.a(itemstack);
+            }
+        }
+
+    }
+
+}

internal/v1_17_R1/src/main/java/com/lishid/openinv/internal/v1_17_R1/SpecialPlayerInventory.java

@@ -0,0 +1,777 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal.v1_17_R1;
+
+import com.google.common.collect.ImmutableList;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import java.util.Collection;
+import java.util.List;
+import java.util.Objects;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import net.minecraft.CrashReport;
+import net.minecraft.CrashReportSystemDetails;
+import net.minecraft.ReportedException;
+import net.minecraft.core.NonNullList;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.nbt.NBTTagList;
+import net.minecraft.network.chat.ChatMessage;
+import net.minecraft.network.chat.IChatBaseComponent;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.server.level.EntityPlayer;
+import net.minecraft.tags.Tag;
+import net.minecraft.world.ContainerUtil;
+import net.minecraft.world.IInventory;
+import net.minecraft.world.damagesource.DamageSource;
+import net.minecraft.world.entity.EnumItemSlot;
+import net.minecraft.world.entity.player.AutoRecipeStackManager;
+import net.minecraft.world.entity.player.EntityHuman;
+import net.minecraft.world.entity.player.PlayerInventory;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemArmor;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.state.IBlockData;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+
+public class SpecialPlayerInventory extends PlayerInventory implements ISpecialPlayerInventory {
+
+    private final CraftInventory inventory;
+    private boolean playerOnline;
+    private EntityHuman l;
+    private NonNullList<ItemStack> h;
+    private NonNullList<ItemStack> i;
+    private NonNullList<ItemStack> j;
+    private List<NonNullList<ItemStack>> n;
+
+    public SpecialPlayerInventory(final Player bukkitPlayer, final Boolean online) {
+        super(PlayerDataManager.getHandle(bukkitPlayer));
+        this.inventory = new CraftInventory(this);
+        this.playerOnline = online;
+        this.l = super.l;
+        this.h = this.l.getInventory().h;
+        this.i = this.l.getInventory().i;
+        this.j = this.l.getInventory().j;
+        this.n = ImmutableList.of(this.h, this.i, this.j);
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull final Player player) {
+        if (!this.playerOnline) {
+            EntityPlayer entityPlayer = PlayerDataManager.getHandle(player);
+            entityPlayer.getInventory().transaction.addAll(this.transaction);
+            this.l = entityPlayer;
+            for (int i = 0; i < getSize(); ++i) {
+                this.l.getInventory().setItem(i, getRawItem(i));
+            }
+            this.l.getInventory().k = this.k;
+            this.h = this.l.getInventory().h;
+            this.i = this.l.getInventory().i;
+            this.j = this.l.getInventory().j;
+            this.n = ImmutableList.of(this.h, this.i, this.j);
+            this.playerOnline = true;
+        }
+    }
+
+    @Override
+    public boolean a(final EntityHuman entityhuman) {
+        return true;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return this.inventory;
+    }
+
+    @Override
+    public ItemStack getItem(int i) {
+        List<ItemStack> list = this.h;
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.i;
+        } else {
+            i = this.getReversedItemSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.j;
+        } else if (list == this.i) {
+            i = this.getReversedArmorSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            return ItemStack.b;
+        }
+
+        return list.get(i);
+    }
+
+    private ItemStack getRawItem(int i) {
+        NonNullList<ItemStack> list = null;
+        for (NonNullList<ItemStack> next : this.n) {
+            if (i < next.size()) {
+                list = next;
+                break;
+            }
+            i -= next.size();
+        }
+
+        return list == null ? ItemStack.b : list.get(i);
+    }
+
+    @Override
+    public IChatBaseComponent getDisplayName() {
+        return new ChatMessage(this.l.getName());
+    }
+
+    @Override
+    public boolean hasCustomName() {
+        return false;
+    }
+
+    private int getReversedArmorSlotNum(final int i) {
+        if (i == 0) {
+            return 3;
+        }
+        if (i == 1) {
+            return 2;
+        }
+        if (i == 2) {
+            return 1;
+        }
+        if (i == 3) {
+            return 0;
+        }
+        return i;
+    }
+
+    private int getReversedItemSlotNum(final int i) {
+        if (i >= 27) {
+            return i - 27;
+        }
+        return i + 9;
+    }
+
+    @Override
+    public int getSize() {
+        return 45;
+    }
+
+    @Override
+    public boolean isInUse() {
+        return !this.getViewers().isEmpty();
+    }
+
+    @Override
+    public void setItem(int i, final ItemStack itemstack) {
+        List<ItemStack> list = this.h;
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.i;
+        } else {
+            i = this.getReversedItemSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.j;
+        } else if (list == this.i) {
+            i = this.getReversedArmorSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            this.l.drop(itemstack, true);
+            return;
+        }
+
+        list.set(i, itemstack);
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public @NotNull HumanEntity getPlayer() {
+        return this.l.getBukkitEntity();
+    }
+
+    @Override
+    public ItemStack splitStack(int i, final int j) {
+        List<ItemStack> list = this.h;
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.i;
+        } else {
+            i = this.getReversedItemSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.j;
+        } else if (list == this.i) {
+            i = this.getReversedArmorSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            return ItemStack.b;
+        }
+
+        return list.get(i).isEmpty() ? ItemStack.b : ContainerUtil.a(list, i, j);
+    }
+
+    @Override
+    public ItemStack splitWithoutUpdate(int i) {
+        List<ItemStack> list = this.h;
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.i;
+        } else {
+            i = this.getReversedItemSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            i -= list.size();
+            list = this.j;
+        } else if (list == this.i) {
+            i = this.getReversedArmorSlotNum(i);
+        }
+
+        if (i >= list.size()) {
+            return ItemStack.b;
+        }
+
+        if (!list.get(i).isEmpty()) {
+            ItemStack itemstack = list.get(i);
+
+            list.set(i, ItemStack.b);
+            return itemstack;
+        }
+
+        return ItemStack.b;
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.n.stream().flatMap(Collection::stream).collect(Collectors.toList());
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return this.n.stream().flatMap(Collection::stream).allMatch(ItemStack::isEmpty);
+    }
+
+    @Override
+    public List<ItemStack> getArmorContents() {
+        return this.i;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.transaction.add(who);
+        this.l.getInventory().transaction.add(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.transaction.remove(who);
+        this.l.getInventory().transaction.remove(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.transaction;
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.l.getBukkitEntity();
+    }
+
+    public Location getLocation() {
+        return this.l.getBukkitEntity().getLocation();
+    }
+
+    /* Below this point largely just copied out of NMS to redirect to our overridden variables. */
+
+    @Override
+    public ItemStack getItemInHand() {
+        return d(this.k) ? this.h.get(this.k) : ItemStack.b;
+    }
+
+    private boolean isSimilarAndNotFull(ItemStack itemstack, ItemStack itemstack1) {
+        return !itemstack.isEmpty() && ItemStack.e(itemstack, itemstack1) && itemstack.isStackable() && itemstack.getCount() < itemstack.getMaxStackSize() && itemstack.getCount() < this.getMaxStackSize();
+    }
+
+    @Override
+    public int canHold(ItemStack itemstack) {
+        int remains = itemstack.getCount();
+
+        for(int i = 0; i < this.h.size(); ++i) {
+            ItemStack itemstack1 = this.getItem(i);
+            if (itemstack1.isEmpty()) {
+                return itemstack.getCount();
+            }
+
+            if (this.isSimilarAndNotFull(itemstack1, itemstack)) {
+                remains -= (Math.min(itemstack1.getMaxStackSize(), this.getMaxStackSize())) - itemstack1.getCount();
+            }
+
+            if (remains <= 0) {
+                return itemstack.getCount();
+            }
+        }
+
+        ItemStack offhandItemStack = this.getItem(this.h.size() + this.i.size());
+        if (this.isSimilarAndNotFull(offhandItemStack, itemstack)) {
+            remains -= (Math.min(offhandItemStack.getMaxStackSize(), this.getMaxStackSize())) - offhandItemStack.getCount();
+        }
+
+        return remains <= 0 ? itemstack.getCount() : itemstack.getCount() - remains;
+    }
+
+    @Override
+    public int getFirstEmptySlotIndex() {
+        for(int i = 0; i < this.h.size(); ++i) {
+            if (this.h.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public void a(ItemStack itemstack) {
+        int i = this.b(itemstack);
+        if (d(i)) {
+            this.k = i;
+        } else if (i == -1) {
+            this.k = this.i();
+            if (!this.h.get(this.k).isEmpty()) {
+                int j = this.getFirstEmptySlotIndex();
+                if (j != -1) {
+                    this.h.set(j, this.h.get(this.k));
+                }
+            }
+
+            this.h.set(this.k, itemstack);
+        } else {
+            this.c(i);
+        }
+
+    }
+
+    @Override
+    public void c(int i) {
+        this.k = this.i();
+        ItemStack itemstack = this.h.get(this.k);
+        this.h.set(this.k, this.h.get(i));
+        this.h.set(i, itemstack);
+    }
+
+    @Override
+    public int b(ItemStack itemstack) {
+        for (int i = 0; i < this.h.size(); ++i) {
+            if (!this.h.get(i).isEmpty() && ItemStack.e(itemstack, this.h.get(i))) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int c(ItemStack itemstack) {
+        for (int i = 0; i < this.h.size(); ++i) {
+            ItemStack itemstack1 = this.h.get(i);
+            if (!this.h.get(i).isEmpty() && ItemStack.e(itemstack, this.h.get(i)) && !this.h.get(i).g() && !itemstack1.hasEnchantments() && !itemstack1.hasName()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int i() {
+        int i;
+        int j;
+        for (j = 0; j < 9; ++j) {
+            i = (this.k + j) % 9;
+            if (this.h.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        for (j = 0; j < 9; ++j) {
+            i = (this.k + j) % 9;
+            if (!this.h.get(i).hasEnchantments()) {
+                return i;
+            }
+        }
+
+        return this.k;
+    }
+
+    @Override
+    public void a(double d0) {
+        if (d0 > 0.0D) {
+            d0 = 1.0D;
+        }
+
+        if (d0 < 0.0D) {
+            d0 = -1.0D;
+        }
+
+        this.k = (int) (this.k - d0);
+
+        while (this.k < 0) {
+            this.k += 9;
+        }
+
+        while (this.k >= 9) {
+            this.k -= 9;
+        }
+
+    }
+
+    @Override
+    public int a(Predicate<ItemStack> predicate, int i, IInventory iinventory) {
+        byte b0 = 0;
+        boolean flag = i == 0;
+        int j = b0 + ContainerUtil.a(this, predicate, i - b0, flag);
+        j += ContainerUtil.a(iinventory, predicate, i - j, flag);
+        ItemStack itemstack = this.l.bV.getCarried();
+        j += ContainerUtil.a(itemstack, predicate, i - j, flag);
+        if (itemstack.isEmpty()) {
+            this.l.bV.setCarried(ItemStack.b);
+        }
+
+        return j;
+    }
+
+    private int i(ItemStack itemstack) {
+        int i = this.firstPartial(itemstack);
+        if (i == -1) {
+            i = this.getFirstEmptySlotIndex();
+        }
+
+        return i == -1 ? itemstack.getCount() : this.d(i, itemstack);
+    }
+
+    private int d(int i, ItemStack itemstack) {
+        Item item = itemstack.getItem();
+        int j = itemstack.getCount();
+        ItemStack itemstack1 = this.getItem(i);
+        if (itemstack1.isEmpty()) {
+            itemstack1 = new ItemStack(item, 0);
+            if (itemstack.hasTag()) {
+                itemstack1.setTag(Objects.requireNonNull(itemstack.getTag()).clone());
+            }
+
+            this.setItem(i, itemstack1);
+        }
+
+        k = Math.min(j, itemstack1.getMaxStackSize() - itemstack1.getCount());
+
+        if (k > this.getMaxStackSize() - itemstack1.getCount()) {
+            k = this.getMaxStackSize() - itemstack1.getCount();
+        }
+
+        if (k != 0) {
+            j -= k;
+            itemstack1.add(k);
+            itemstack1.d(5);
+        }
+
+        return j;
+    }
+
+    @Override
+    public int firstPartial(ItemStack itemstack) {
+        if (this.isSimilarAndNotFull(this.getItem(this.k), itemstack)) {
+            return this.k;
+        } else if (this.isSimilarAndNotFull(this.getItem(40), itemstack)) {
+            return 40;
+        } else {
+            for(int i = 0; i < this.h.size(); ++i) {
+                if (this.isSimilarAndNotFull(this.h.get(i), itemstack)) {
+                    return i;
+                }
+            }
+
+            return -1;
+        }
+    }
+
+    @Override
+    public void j() {
+        for (NonNullList<ItemStack> nonNullList : this.n) {
+            for (int i = 0; i < nonNullList.size(); ++i) {
+                if (!nonNullList.get(i).isEmpty()) {
+                    nonNullList.get(i).a(this.l.t, this.l, i, this.k == i);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public boolean pickup(ItemStack itemStack) {
+        return this.c(-1, itemStack);
+    }
+
+    @Override
+    public boolean c(int i, ItemStack itemStack) {
+        if (itemStack.isEmpty()) {
+            return false;
+        } else {
+            try {
+                if (itemStack.g()) {
+                    if (i == -1) {
+                        i = this.getFirstEmptySlotIndex();
+                    }
+
+                    if (i >= 0) {
+                        this.h.set(i, itemStack.cloneItemStack());
+                        this.h.get(i).d(5);
+                        itemStack.setCount(0);
+                        return true;
+                    } else if (this.l.getAbilities().d) {
+                        itemStack.setCount(0);
+                        return true;
+                    } else {
+                        return false;
+                    }
+                } else {
+                    int j;
+                    do {
+                        j = itemStack.getCount();
+                        if (i == -1) {
+                            itemStack.setCount(this.i(itemStack));
+                        } else {
+                            itemStack.setCount(this.d(i, itemStack));
+                        }
+                    } while(!itemStack.isEmpty() && itemStack.getCount() < j);
+
+                    if (itemStack.getCount() == j && this.l.getAbilities().d) {
+                        itemStack.setCount(0);
+                        return true;
+                    } else {
+                        return itemStack.getCount() < j;
+                    }
+                }
+            } catch (Throwable var6) {
+                CrashReport crashreport = CrashReport.a(var6, "Adding item to inventory");
+                CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Item being added");
+                crashreportsystemdetails.a("Item ID", Item.getId(itemStack.getItem()));
+                crashreportsystemdetails.a("Item data", itemStack.getDamage());
+                crashreportsystemdetails.a("Item name", () -> itemStack.getName().getString());
+                throw new ReportedException(crashreport);
+            }
+        }
+    }
+
+    @Override
+    public void f(ItemStack itemStack) {
+        this.a(itemStack, true);
+    }
+
+    @Override
+    public void a(ItemStack itemStack, boolean flag) {
+        while(true) {
+            if (!itemStack.isEmpty()) {
+                int i = this.firstPartial(itemStack);
+                if (i == -1) {
+                    i = this.getFirstEmptySlotIndex();
+                }
+
+                if (i != -1) {
+                    int j = itemStack.getMaxStackSize() - this.getItem(i).getCount();
+                    if (this.c(i, itemStack.cloneAndSubtract(j)) && flag && this.l instanceof EntityPlayer) {
+                        ((EntityPlayer)this.l).b.sendPacket(new PacketPlayOutSetSlot(-2, i, this.getItem(i)));
+                    }
+                    continue;
+                }
+
+                this.l.drop(itemStack, false);
+            }
+
+            return;
+        }
+    }
+
+    @Override
+    public void g(ItemStack itemStack) {
+        for (NonNullList<ItemStack> nonNullList : this.n) {
+            for (int i = 0; i < nonNullList.size(); ++i) {
+                if (nonNullList.get(i) == itemStack) {
+                    nonNullList.set(i, ItemStack.b);
+                    break;
+                }
+            }
+        }
+    }
+
+    @Override
+    public float a(IBlockData iBlockData) {
+        return this.h.get(this.k).a(iBlockData);
+    }
+
+    @Override
+    public NBTTagList a(NBTTagList nbtTagList) {
+        NBTTagCompound nbttagcompound;
+        int i;
+        for(i = 0; i < this.h.size(); ++i) {
+            if (!this.h.get(i).isEmpty()) {
+                nbttagcompound = new NBTTagCompound();
+                nbttagcompound.setByte("Slot", (byte)i);
+                this.h.get(i).save(nbttagcompound);
+                nbtTagList.add(nbttagcompound);
+            }
+        }
+
+        for(i = 0; i < this.i.size(); ++i) {
+            if (!this.i.get(i).isEmpty()) {
+                nbttagcompound = new NBTTagCompound();
+                nbttagcompound.setByte("Slot", (byte)(i + 100));
+                this.i.get(i).save(nbttagcompound);
+                nbtTagList.add(nbttagcompound);
+            }
+        }
+
+        for(i = 0; i < this.j.size(); ++i) {
+            if (!this.j.get(i).isEmpty()) {
+                nbttagcompound = new NBTTagCompound();
+                nbttagcompound.setByte("Slot", (byte)(i + 150));
+                this.j.get(i).save(nbttagcompound);
+                nbtTagList.add(nbttagcompound);
+            }
+        }
+
+        return nbtTagList;
+    }
+
+    @Override
+    public void b(NBTTagList nbtTagList) {
+        this.h.clear();
+        this.i.clear();
+        this.j.clear();
+
+        for(int i = 0; i < nbtTagList.size(); ++i) {
+            NBTTagCompound nbttagcompound = nbtTagList.getCompound(i);
+            int j = nbttagcompound.getByte("Slot") & 255;
+            ItemStack itemstack = ItemStack.a(nbttagcompound);
+            if (!itemstack.isEmpty()) {
+                if (j < this.h.size()) {
+                    this.h.set(j, itemstack);
+                } else if (j >= 100 && j < this.i.size() + 100) {
+                    this.i.set(j - 100, itemstack);
+                } else if (j >= 150 && j < this.j.size() + 150) {
+                    this.j.set(j - 150, itemstack);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public ItemStack e(int i) {
+        return this.i.get(i);
+    }
+
+    @Override
+    public void a(DamageSource damageSource, float f, int[] intArray) {
+        if (f > 0.0F) {
+            f /= 4.0F;
+            if (f < 1.0F) {
+                f = 1.0F;
+            }
+
+            for (int index : intArray) {
+                ItemStack itemstack = this.i.get(index);
+                if ((!damageSource.isFire() || !itemstack.getItem().w()) && itemstack.getItem() instanceof ItemArmor) {
+                    itemstack.damage((int) f, this.l, (entityHuman) -> entityHuman.broadcastItemBreak(EnumItemSlot.a(EnumItemSlot.Function.b, index)));
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public void dropContents() {
+        for (List<ItemStack> list : this.n) {
+            for (int i = 0; i < list.size(); ++i) {
+                ItemStack itemstack = list.get(i);
+                if (!itemstack.isEmpty()) {
+                    list.set(i, ItemStack.b);
+                    this.l.a(itemstack, true, false);
+                }
+            }
+        }
+    }
+
+    @Override
+    public boolean h(ItemStack itemStack) {
+        return this.n.stream()
+                .flatMap(Collection::stream)
+                .anyMatch(itemStack1 -> !itemStack1.isEmpty() && itemStack1.doMaterialsMatch(itemStack));
+    }
+
+    @Override
+    public boolean a(Tag<Item> tag) {
+        return this.n.stream()
+                .flatMap(Collection::stream)
+                .anyMatch(itemStack -> !itemStack.isEmpty() && itemStack.a(tag));
+    }
+
+    @Override
+    public void a(PlayerInventory playerInventory) {
+        for(int i = 0; i < this.getSize(); ++i) {
+            this.setItem(i, playerInventory.getItem(i));
+        }
+
+        this.k = playerInventory.k;
+    }
+
+    @Override
+    public void clear() {
+        for (List<ItemStack> list : this.n) {
+            list.clear();
+        }
+    }
+
+    @Override
+    public void a(AutoRecipeStackManager autoRecipeStackManager) {
+        for (ItemStack itemstack : this.h) {
+            autoRecipeStackManager.a(itemstack);
+        }
+    }
+
+}

plugin/pom.xml

@@ -0,0 +1,63 @@
+<!--
+  ~ Copyright (C) 2011-2021 lishid. All rights reserved.
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, version 3.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <artifactId>openinvparent</artifactId>
+    <groupId>com.lishid</groupId>
+    <version>4.1.9-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>openinvplugincore</artifactId>
+  <name>OpenInvPlugin</name>
+
+  <dependencies>
+    <dependency>
+      <artifactId>openinvapi</artifactId>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>annotations</artifactId>
+      <groupId>org.jetbrains</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>spigot-api</artifactId>
+      <groupId>org.spigotmc</groupId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <resources>
+      <resource>
+        <directory>src/main/resources</directory>
+        <filtering>true</filtering>
+      </resource>
+    </resources>
+
+    <plugins>
+      <plugin>
+        <artifactId>maven-shade-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

plugin/src/main/java/com/lishid/openinv/OpenInv.java

@@ -0,0 +1,553 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv;
+
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.Multimap;
+import com.lishid.openinv.commands.ContainerSettingCommand;
+import com.lishid.openinv.commands.OpenInvCommand;
+import com.lishid.openinv.commands.SearchContainerCommand;
+import com.lishid.openinv.commands.SearchEnchantCommand;
+import com.lishid.openinv.commands.SearchInvCommand;
+import com.lishid.openinv.internal.IAnySilentContainer;
+import com.lishid.openinv.internal.ISpecialEnderChest;
+import com.lishid.openinv.internal.ISpecialInventory;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import com.lishid.openinv.listeners.InventoryListener;
+import com.lishid.openinv.listeners.PlayerListener;
+import com.lishid.openinv.listeners.PluginListener;
+import com.lishid.openinv.util.Cache;
+import com.lishid.openinv.util.ConfigUpdater;
+import com.lishid.openinv.util.InternalAccessor;
+import com.lishid.openinv.util.LanguageManager;
+import com.lishid.openinv.util.Permissions;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+import java.util.function.Consumer;
+import net.md_5.bungee.api.ChatMessageType;
+import net.md_5.bungee.api.chat.TextComponent;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.PluginCommand;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.InventoryView;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginManager;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Open other player's inventory
+ *
+ * @author lishid
+ */
+public class OpenInv extends JavaPlugin implements IOpenInv {
+
+    private final Map<String, ISpecialPlayerInventory> inventories = new HashMap<>();
+    private final Map<String, ISpecialEnderChest> enderChests = new HashMap<>();
+    private final Multimap<String, Class<? extends Plugin>> pluginUsage = HashMultimap.create();
+
+    private final Cache<String, Player> playerCache = new Cache<>(300000L,
+            value -> {
+                String key = OpenInv.this.getPlayerID(value);
+
+                return OpenInv.this.inventories.containsKey(key)
+                        && OpenInv.this.inventories.get(key).isInUse()
+                        || OpenInv.this.enderChests.containsKey(key)
+                        && OpenInv.this.enderChests.get(key).isInUse()
+                        || OpenInv.this.pluginUsage.containsKey(key);
+            },
+            value -> {
+                String key = OpenInv.this.getPlayerID(value);
+
+                // Check if inventory is stored, and if it is, remove it and eject all viewers
+                if (OpenInv.this.inventories.containsKey(key)) {
+                    Inventory inv = OpenInv.this.inventories.remove(key).getBukkitInventory();
+                    List<HumanEntity> viewers = new ArrayList<>(inv.getViewers());
+                    for (HumanEntity entity : viewers.toArray(new HumanEntity[0])) {
+                        entity.closeInventory();
+                    }
+                }
+
+                // Check if ender chest is stored, and if it is, remove it and eject all viewers
+                if (OpenInv.this.enderChests.containsKey(key)) {
+                    Inventory inv = OpenInv.this.enderChests.remove(key).getBukkitInventory();
+                    List<HumanEntity> viewers = new ArrayList<>(inv.getViewers());
+                    for (HumanEntity entity : viewers.toArray(new HumanEntity[0])) {
+                        entity.closeInventory();
+                    }
+                }
+
+                if (!OpenInv.this.disableSaving() && !value.isOnline()) {
+                    value.saveData();
+                }
+            });
+
+    private InternalAccessor accessor;
+    private LanguageManager languageManager;
+
+    /**
+     * Evicts all viewers lacking cross-world permissions from a Player's inventory.
+     *
+     * @param player the Player
+     */
+    public void changeWorld(final Player player) {
+
+        String key = this.getPlayerID(player);
+
+        // Check if the player is cached. If not, neither of their inventories is open.
+        if (!this.playerCache.containsKey(key)) {
+            return;
+        }
+
+        if (this.inventories.containsKey(key)) {
+            kickCrossWorldViewers(player, this.inventories.get(key));
+        }
+
+        if (this.enderChests.containsKey(key)) {
+            kickCrossWorldViewers(player, this.enderChests.get(key));
+        }
+    }
+
+    private void kickCrossWorldViewers(Player player, ISpecialInventory inventory) {
+        List<HumanEntity> viewers = new ArrayList<>(inventory.getBukkitInventory().getViewers());
+        for (HumanEntity human : viewers) {
+            // If player has permission or is in the same world, allow continued access
+            // Just in case, also allow null worlds.
+            if (Permissions.CROSSWORLD.hasPermission(human) || Objects.equals(human.getWorld(), player.getWorld())) {
+                continue;
+            }
+            human.closeInventory();
+        }
+    }
+
+    /**
+     * Convert a raw slot number into a player inventory slot number.
+     *
+     * <p>Note that this method is specifically for converting an ISpecialPlayerInventory slot number into a regular
+     * player inventory slot number.
+     *
+     * @param view the open inventory view
+     * @param rawSlot the raw slot in the view
+     * @return the converted slot number
+     */
+    public int convertToPlayerSlot(InventoryView view, int rawSlot) {
+        return this.accessor.getPlayerDataManager().convertToPlayerSlot(view, rawSlot);
+    }
+
+    @Override
+    public boolean disableSaving() {
+        return this.getConfig().getBoolean("settings.disable-saving", false);
+    }
+
+    @NotNull
+    @Override
+    public IAnySilentContainer getAnySilentContainer() {
+        return this.accessor.getAnySilentContainer();
+    }
+
+    @Override
+    public boolean getPlayerAnyChestStatus(@NotNull final OfflinePlayer player) {
+        boolean defaultState = false;
+
+        if (player.isOnline()) {
+            Player onlinePlayer = player.getPlayer();
+            if (onlinePlayer != null) {
+                defaultState = Permissions.ANY_DEFAULT.hasPermission(onlinePlayer);
+            }
+        }
+
+        return this.getConfig().getBoolean("toggles.any-chest." + this.getPlayerID(player), defaultState);
+    }
+
+    @Override
+    public boolean getPlayerSilentChestStatus(@NotNull final OfflinePlayer offline) {
+        boolean defaultState = false;
+
+        if (offline.isOnline()) {
+            Player onlinePlayer = offline.getPlayer();
+            if (onlinePlayer != null) {
+                defaultState = Permissions.SILENT_DEFAULT.hasPermission(onlinePlayer);
+            }
+        }
+
+        return this.getConfig().getBoolean("toggles.silent-chest." + this.getPlayerID(offline), defaultState);
+    }
+
+    @NotNull
+    @Override
+    public ISpecialEnderChest getSpecialEnderChest(@NotNull final Player player, final boolean online)
+            throws InstantiationException {
+        String id = this.getPlayerID(player);
+        if (this.enderChests.containsKey(id)) {
+            return this.enderChests.get(id);
+        }
+        ISpecialEnderChest inv = this.accessor.newSpecialEnderChest(player, online);
+        this.enderChests.put(id, inv);
+        this.playerCache.put(id, player);
+        return inv;
+    }
+
+    @NotNull
+    @Override
+    public ISpecialPlayerInventory getSpecialInventory(@NotNull final Player player, final boolean online)
+            throws InstantiationException {
+        String id = this.getPlayerID(player);
+        if (this.inventories.containsKey(id)) {
+            return this.inventories.get(id);
+        }
+        ISpecialPlayerInventory inv = this.accessor.newSpecialPlayerInventory(player, online);
+        this.inventories.put(id, inv);
+        this.playerCache.put(id, player);
+        return inv;
+    }
+
+    @Override
+    public boolean isSupportedVersion() {
+        return this.accessor != null && this.accessor.isSupported();
+    }
+
+    @Override
+    public @Nullable Player loadPlayer(@NotNull final OfflinePlayer offline) {
+
+        String key = this.getPlayerID(offline);
+        if (this.playerCache.containsKey(key)) {
+            return this.playerCache.get(key);
+        }
+
+        Player player = offline.getPlayer();
+        if (player != null) {
+            this.playerCache.put(key, player);
+            return player;
+        }
+
+        if (!this.isSupportedVersion()) {
+            return null;
+        }
+
+        if (Bukkit.isPrimaryThread()) {
+            return this.accessor.getPlayerDataManager().loadPlayer(offline);
+        }
+
+        Future<Player> future = Bukkit.getScheduler().callSyncMethod(this,
+                () -> OpenInv.this.accessor.getPlayerDataManager().loadPlayer(offline));
+
+        try {
+            player = future.get();
+        } catch (InterruptedException | ExecutionException e) {
+            e.printStackTrace();
+            return null;
+        }
+
+        if (player != null) {
+            this.playerCache.put(key, player);
+        }
+
+        return player;
+    }
+
+    @Override
+    public @Nullable InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
+        return this.accessor.getPlayerDataManager().openInventory(player, inventory);
+    }
+
+    public void sendMessage(@NotNull CommandSender sender, @NotNull String key) {
+        String message = this.languageManager.getValue(key, getLocale(sender));
+
+        if (message != null && !message.isEmpty()) {
+            sender.sendMessage(message);
+        }
+    }
+
+    public void sendMessage(@NotNull CommandSender sender, @NotNull String key, String... replacements) {
+        String message = this.languageManager.getValue(key, getLocale(sender), replacements);
+
+        if (message != null && !message.isEmpty()) {
+            sender.sendMessage(message);
+        }
+    }
+
+    public void sendSystemMessage(@NotNull Player player, @NotNull String key) {
+        String message = this.languageManager.getValue(key, getLocale(player));
+
+        if (message == null) {
+            return;
+        }
+
+        int newline = message.indexOf('\n');
+        if (newline != -1) {
+            // No newlines in action bar chat.
+            message = message.substring(0, newline);
+        }
+
+        if (message.isEmpty()) {
+            return;
+        }
+
+        player.spigot().sendMessage(ChatMessageType.ACTION_BAR, TextComponent.fromLegacyText(message));
+    }
+
+    public @Nullable String getLocalizedMessage(@NotNull CommandSender sender, @NotNull String key) {
+        return this.languageManager.getValue(key, getLocale(sender));
+    }
+
+    public @Nullable String getLocalizedMessage(@NotNull CommandSender sender, @NotNull String key, String... replacements) {
+        return this.languageManager.getValue(key, getLocale(sender), replacements);
+    }
+
+    private @NotNull String getLocale(@NotNull CommandSender sender) {
+        if (sender instanceof Player) {
+            return ((Player) sender).getLocale();
+        } else {
+            return this.getConfig().getString("settings.locale", "en_us");
+        }
+    }
+
+    @Override
+    public void onDisable() {
+
+        if (this.disableSaving()) {
+            return;
+        }
+
+        if (this.isSupportedVersion()) {
+            this.playerCache.invalidateAll();
+        }
+    }
+
+    @Override
+    public void onEnable() {
+
+        // Save default configuration if not present.
+        this.saveDefaultConfig();
+
+        // Get plugin manager
+        PluginManager pm = this.getServer().getPluginManager();
+
+        this.accessor = new InternalAccessor(this);
+
+        this.languageManager = new LanguageManager(this, "en_us");
+
+        // Version check
+        if (this.accessor.isSupported()) {
+            // Update existing configuration. May require internal access.
+            new ConfigUpdater(this).checkForUpdates();
+
+            // Register listeners
+            pm.registerEvents(new PlayerListener(this), this);
+            pm.registerEvents(new PluginListener(this), this);
+            pm.registerEvents(new InventoryListener(this), this);
+
+            // Register commands to their executors
+            this.setCommandExecutor(new OpenInvCommand(this), "openinv", "openender");
+            this.setCommandExecutor(new SearchContainerCommand(this), "searchcontainer");
+            this.setCommandExecutor(new SearchInvCommand(this), "searchinv", "searchender");
+            this.setCommandExecutor(new SearchEnchantCommand(this), "searchenchant");
+            this.setCommandExecutor(new ContainerSettingCommand(this), "silentcontainer", "anycontainer");
+
+        } else {
+            this.sendVersionError(this.getLogger()::warning);
+        }
+
+    }
+
+    private void sendVersionError(Consumer<String> messageMethod) {
+        messageMethod.accept("Your server version (" + this.accessor.getVersion() + ") is not supported.");
+        messageMethod.accept("Please obtain an appropriate version here: " + accessor.getReleasesLink());
+    }
+
+    private void setCommandExecutor(CommandExecutor executor, String... commands) {
+        for (String commandName : commands) {
+            PluginCommand command = this.getCommand(commandName);
+            if (command != null) {
+                command.setExecutor(executor);
+            }
+        }
+    }
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!this.accessor.isSupported()) {
+            this.sendVersionError(sender::sendMessage);
+            return true;
+        }
+        return false;
+    }
+
+    public void releaseAllPlayers(final Plugin plugin) {
+        Iterator<Map.Entry<String, Class<? extends Plugin>>> iterator = this.pluginUsage.entries().iterator();
+
+        if (!iterator.hasNext()) {
+            return;
+        }
+
+        for (Map.Entry<String, Class<? extends Plugin>> entry = iterator.next(); iterator.hasNext(); entry = iterator.next()) {
+            if (entry.getValue().equals(plugin.getClass())) {
+                iterator.remove();
+            }
+        }
+    }
+
+    @Override
+    public void releasePlayer(@NotNull final Player player, @NotNull final Plugin plugin) {
+        String key = this.getPlayerID(player);
+
+        if (!this.pluginUsage.containsEntry(key, plugin.getClass())) {
+            return;
+        }
+
+        this.pluginUsage.remove(key, plugin.getClass());
+    }
+
+    @Override
+    public void retainPlayer(@NotNull final Player player, @NotNull final Plugin plugin) {
+        String key = this.getPlayerID(player);
+
+        if (this.pluginUsage.containsEntry(key, plugin.getClass())) {
+            return;
+        }
+
+        this.pluginUsage.put(key, plugin.getClass());
+    }
+
+    @Override
+    public void setPlayerAnyChestStatus(@NotNull final OfflinePlayer offline, final boolean status) {
+        this.getConfig().set("toggles.any-chest." + this.getPlayerID(offline), status);
+        this.saveConfig();
+    }
+
+    /**
+     * Method for handling a Player going offline.
+     *
+     * @param player the Player
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    public void setPlayerOffline(final Player player) {
+
+        String key = this.getPlayerID(player);
+
+        // Check if the player is cached. If not, neither of their inventories is open.
+        if (!this.playerCache.containsKey(key)) {
+            return;
+        }
+
+        // Replace stored player with our own version
+        this.playerCache.put(key, this.accessor.getPlayerDataManager().inject(player));
+
+        if (this.inventories.containsKey(key)) {
+            this.inventories.get(key).setPlayerOffline();
+        }
+
+        if (this.enderChests.containsKey(key)) {
+            this.enderChests.get(key).setPlayerOffline();
+        }
+    }
+
+    /**
+     * Method for handling a Player coming online.
+     *
+     * @param player the Player
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    public void setPlayerOnline(final Player player) {
+
+        String key = this.getPlayerID(player);
+
+        // Check if the player is cached. If not, neither of their inventories is open.
+        if (!this.playerCache.containsKey(key)) {
+            return;
+        }
+
+        this.playerCache.put(key, player);
+
+        if (this.inventories.containsKey(key)) {
+            this.inventories.get(key).setPlayerOnline(player);
+            new BukkitRunnable() {
+                @Override
+                public void run() {
+                    if (player.isOnline()) {
+                        player.updateInventory();
+                    }
+                }
+            }.runTask(this);
+        }
+
+        if (this.enderChests.containsKey(key)) {
+            this.enderChests.get(key).setPlayerOnline(player);
+        }
+    }
+
+    @Override
+    public void setPlayerSilentChestStatus(@NotNull final OfflinePlayer offline, final boolean status) {
+        this.getConfig().set("toggles.silent-chest." + this.getPlayerID(offline), status);
+        this.saveConfig();
+    }
+
+    /**
+     * Displays all applicable help for OpenInv commands.
+     *
+     * @param player the Player to help
+     */
+    public void showHelp(final Player player) {
+        // Get registered commands
+        for (String commandName : this.getDescription().getCommands().keySet()) {
+            PluginCommand command = this.getCommand(commandName);
+
+            // Ensure command is successfully registered and player can use it
+            if (command == null  || !command.testPermissionSilent(player)) {
+                continue;
+            }
+
+            // Send usage
+            player.sendMessage(command.getUsage().replace("<command>", commandName));
+
+            List<String> aliases = command.getAliases();
+            if (aliases.isEmpty()) {
+                continue;
+            }
+
+            // Assemble alias list
+            StringBuilder aliasBuilder = new StringBuilder("   (aliases: ");
+            for (String alias : aliases) {
+                aliasBuilder.append(alias).append(", ");
+            }
+            aliasBuilder.delete(aliasBuilder.length() - 2, aliasBuilder.length()).append(')');
+
+            // Send all aliases
+            player.sendMessage(aliasBuilder.toString());
+        }
+    }
+
+    @Override
+    public void unload(@NotNull final OfflinePlayer offline) {
+        this.playerCache.invalidate(this.getPlayerID(offline));
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/commands/ContainerSettingCommand.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.commands;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.util.TabCompleter;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.BiConsumer;
+import java.util.function.Predicate;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+public class ContainerSettingCommand implements TabExecutor {
+
+    private final OpenInv plugin;
+
+    public ContainerSettingCommand(final OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!(sender instanceof Player)) {
+            plugin.sendMessage(sender, "messages.error.consoleUnsupported");
+            return true;
+        }
+
+        Player player = (Player) sender;
+        boolean any = command.getName().startsWith("any");
+        Predicate<Player> getSetting = any ? plugin::getPlayerAnyChestStatus : plugin::getPlayerSilentChestStatus;
+        BiConsumer<OfflinePlayer, Boolean> setSetting = any ? plugin::setPlayerAnyChestStatus : plugin::setPlayerSilentChestStatus;
+
+        if (args.length > 0) {
+            args[0] = args[0].toLowerCase();
+
+            if (args[0].equals("on")) {
+                setSetting.accept(player, true);
+            } else if (args[0].equals("off")) {
+                setSetting.accept(player, false);
+            } else if (!args[0].equals("check")) {
+                // Invalid argument, show usage.
+                return false;
+            }
+
+        } else {
+            setSetting.accept(player, !getSetting.test(player));
+        }
+
+        String onOff = plugin.getLocalizedMessage(player, getSetting.test(player) ? "messages.info.on" : "messages.info.off");
+        if (onOff == null) {
+            onOff = String.valueOf(getSetting.test(player));
+        }
+
+        plugin.sendMessage(sender, "messages.info.settingState","%setting%", any ? "AnyContainer" : "SilentContainer", "%state%", onOff);
+
+        return true;
+    }
+
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!command.testPermissionSilent(sender) || args.length != 1) {
+            return Collections.emptyList();
+        }
+
+        return TabCompleter.completeString(args[0], new String[] {"check", "on", "off"});
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/commands/OpenInvCommand.java

@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.commands;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.internal.ISpecialInventory;
+import com.lishid.openinv.util.Permissions;
+import com.lishid.openinv.util.TabCompleter;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.bukkit.entity.Player;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.jetbrains.annotations.NotNull;
+
+public class OpenInvCommand implements TabExecutor {
+
+    private final OpenInv plugin;
+    private final HashMap<Player, String> openInvHistory = new HashMap<>();
+    private final HashMap<Player, String> openEnderHistory = new HashMap<>();
+
+    public OpenInvCommand(final OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public boolean onCommand(@NotNull final CommandSender sender, @NotNull final Command command, @NotNull final String label, @NotNull final String[] args) {
+        if (!(sender instanceof Player)) {
+            plugin.sendMessage(sender, "messages.error.consoleUnsupported");
+            return true;
+        }
+
+        if (args.length > 0 && (args[0].equalsIgnoreCase("help") || args[0].equals("?"))) {
+            this.plugin.showHelp((Player) sender);
+            return true;
+        }
+
+        final Player player = (Player) sender;
+        final boolean openinv = command.getName().equals("openinv");
+
+        // History management
+        String history = (openinv ? this.openInvHistory : this.openEnderHistory).get(player);
+
+        if (history == null || history.isEmpty()) {
+            history = player.getName();
+            (openinv ? this.openInvHistory : this.openEnderHistory).put(player, history);
+        }
+
+        final String name;
+
+        // Read from history if target is not named
+        if (args.length < 1) {
+            name = history;
+        } else {
+            name = args[0];
+        }
+
+        new BukkitRunnable() {
+            @Override
+            public void run() {
+                final OfflinePlayer offlinePlayer = OpenInvCommand.this.plugin.matchPlayer(name);
+
+                if (offlinePlayer == null || !offlinePlayer.hasPlayedBefore() && !offlinePlayer.isOnline()) {
+                    plugin.sendMessage(player, "messages.error.invalidPlayer");
+                    return;
+                }
+
+                new BukkitRunnable() {
+                    @Override
+                    public void run() {
+                        if (!player.isOnline()) {
+                            return;
+                        }
+                        OpenInvCommand.this.openInventory(player, offlinePlayer, openinv);
+                    }
+                }.runTask(OpenInvCommand.this.plugin);
+
+            }
+        }.runTaskAsynchronously(this.plugin);
+
+        return true;
+    }
+
+    private void openInventory(final Player player, final OfflinePlayer target, boolean openinv) {
+        Player onlineTarget;
+        boolean online = target.isOnline();
+
+        if (!online) {
+            if (Permissions.OPENOFFLINE.hasPermission(player)) {
+                // Try loading the player's data
+                onlineTarget = this.plugin.loadPlayer(target);
+            } else {
+                plugin.sendMessage(player, "messages.error.permissionPlayerOffline");
+                return;
+            }
+        } else {
+            if (Permissions.OPENONLINE.hasPermission(player)) {
+                onlineTarget = target.getPlayer();
+            } else {
+                plugin.sendMessage(player, "messages.error.permissionPlayerOnline");
+                return;
+            }
+        }
+
+        if (onlineTarget == null) {
+            plugin.sendMessage(player, "messages.error.invalidPlayer");
+            return;
+        }
+
+        // Permissions checks
+        if (onlineTarget.equals(player)) {
+            // Inventory: Additional permission required to open own inventory
+            if (openinv && !Permissions.OPENSELF.hasPermission(player)) {
+                plugin.sendMessage(player, "messages.error.permissionOpenSelf");
+                return;
+            }
+        } else {
+            // Enderchest: Additional permission required to open others' ender chests
+            if (!openinv && !Permissions.ENDERCHEST_ALL.hasPermission(player)) {
+                plugin.sendMessage(player, "messages.error.permissionEnderAll");
+                return;
+            }
+
+            // Protected check
+            if (!Permissions.OVERRIDE.hasPermission(player)
+                    && Permissions.EXEMPT.hasPermission(onlineTarget)) {
+                plugin.sendMessage(player, "messages.error.permissionExempt",
+                        "%target%", onlineTarget.getDisplayName());
+                return;
+            }
+
+            // Crossworld check
+            if (!Permissions.CROSSWORLD.hasPermission(player)
+                    && !onlineTarget.getWorld().equals(player.getWorld())) {
+                plugin.sendMessage(player, "messages.error.permissionCrossWorld",
+                        "%target%", onlineTarget.getDisplayName());
+                return;
+            }
+        }
+
+        // Record the target
+        (openinv ? this.openInvHistory : this.openEnderHistory).put(player, this.plugin.getPlayerID(target));
+
+        // Create the inventory
+        final ISpecialInventory inv;
+        try {
+            inv = openinv ? this.plugin.getSpecialInventory(onlineTarget, online) : this.plugin.getSpecialEnderChest(onlineTarget, online);
+        } catch (Exception e) {
+            plugin.sendMessage(player, "messages.error.commandException");
+            e.printStackTrace();
+            return;
+        }
+
+        // Open the inventory
+        plugin.openInventory(player, inv);
+    }
+
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!command.testPermissionSilent(sender) || args.length != 1) {
+            return Collections.emptyList();
+        }
+
+        return TabCompleter.completeOnlinePlayer(sender, args[0]);
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/commands/SearchContainerCommand.java

@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.commands;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.util.TabCompleter;
+import java.util.Collections;
+import java.util.List;
+import org.bukkit.Chunk;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.block.BlockState;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Command for searching containers in a radius of chunks.
+ */
+public class SearchContainerCommand implements TabExecutor {
+
+    private final OpenInv plugin;
+
+    public SearchContainerCommand(OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!(sender instanceof Player)) {
+            plugin.sendMessage(sender, "messages.error.consoleUnsupported");
+            return true;
+        }
+
+        if (args.length < 1) {
+            // Must supply material
+            return false;
+        }
+
+        Material material = Material.getMaterial(args[0].toUpperCase());
+
+        if (material == null) {
+            plugin.sendMessage(sender, "messages.error.invalidMaterial", "%target%", args[0]);
+            return false;
+        }
+
+        int radius = 5;
+
+        if (args.length > 1) {
+            try {
+                radius = Integer.parseInt(args[1]);
+            } catch (NumberFormatException e) {
+                // Invalid radius supplied
+                return false;
+            }
+        }
+
+        Player senderPlayer = (Player) sender;
+        World world = senderPlayer.getWorld();
+        Chunk centerChunk = senderPlayer.getLocation().getChunk();
+        StringBuilder locations = new StringBuilder();
+
+        for (int dX = -radius; dX <= radius; ++dX) {
+            for (int dZ = -radius; dZ <= radius; ++dZ) {
+                if (!world.loadChunk(centerChunk.getX() + dX, centerChunk.getZ() + dZ, false)) {
+                    continue;
+                }
+                Chunk chunk = world.getChunkAt(centerChunk.getX() + dX, centerChunk.getZ() + dZ);
+                for (BlockState tileEntity : chunk.getTileEntities()) {
+                    if (!(tileEntity instanceof InventoryHolder)) {
+                        continue;
+                    }
+                    InventoryHolder holder = (InventoryHolder) tileEntity;
+                    if (!holder.getInventory().contains(material)) {
+                        continue;
+                    }
+                    locations.append(holder.getInventory().getType().name().toLowerCase()).append(" (")
+                            .append(tileEntity.getX()).append(',').append(tileEntity.getY()).append(',')
+                            .append(tileEntity.getZ()).append("), ");
+                }
+            }
+        }
+
+        // Matches found, delete trailing comma and space
+        if (locations.length() > 0) {
+            locations.delete(locations.length() - 2, locations.length());
+        } else {
+            plugin.sendMessage(sender, "messages.info.container.noMatches",
+                    "%target%", material.name());
+            return true;
+        }
+
+        plugin.sendMessage(sender, "messages.info.container.matches",
+                "%target%", material.name(), "%detail%", locations.toString());
+        return true;
+    }
+
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, String[] args) {
+        if (args.length < 1 || args.length > 2 || !command.testPermissionSilent(sender)) {
+            return Collections.emptyList();
+        }
+
+        String argument = args[args.length - 1];
+        if (args.length == 1) {
+            return TabCompleter.completeEnum(argument, Material.class);
+        } else {
+            return TabCompleter.completeInteger(argument);
+        }
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/commands/SearchEnchantCommand.java

@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.commands;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.util.TabCompleter;
+import java.util.Collections;
+import java.util.List;
+import org.bukkit.Material;
+import org.bukkit.NamespacedKey;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.bukkit.enchantments.Enchantment;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Command adding the ability to search online players' inventories for enchantments of a specific
+ * type at or above the level specified.
+ *
+ * @author Jikoo
+ */
+public class SearchEnchantCommand implements TabExecutor {
+
+    private final OpenInv plugin;
+
+    public SearchEnchantCommand(OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (args.length == 0) {
+            return false;
+        }
+
+        Enchantment enchant = null;
+        int level = 0;
+
+        for (String argument : args) {
+            try {
+                level = Integer.parseInt(argument);
+                continue;
+            } catch (NumberFormatException ignored) {}
+
+            argument = argument.toLowerCase();
+            int colon = argument.indexOf(':');
+            NamespacedKey key;
+            try {
+                if (colon > -1 && colon < argument.length() - 1) {
+                    key = new NamespacedKey(argument.substring(0, colon), argument.substring(colon + 1));
+                } else {
+                    key = NamespacedKey.minecraft(argument);
+                }
+            } catch (IllegalArgumentException ignored) {
+                continue;
+            }
+
+            Enchantment localEnchant = Enchantment.getByKey(key);
+            if (localEnchant != null) {
+                enchant = localEnchant;
+            }
+        }
+
+        // Arguments not set correctly
+        if (level == 0 && enchant == null) {
+            return false;
+        }
+
+        StringBuilder players = new StringBuilder();
+        for (Player player : plugin.getServer().getOnlinePlayers()) {
+            boolean flagInventory = containsEnchantment(player.getInventory(), enchant, level);
+            boolean flagEnder = containsEnchantment(player.getEnderChest(), enchant, level);
+
+            // No matches, continue
+            if (!flagInventory && !flagEnder) {
+                continue;
+            }
+
+            // Matches, append details
+            players.append(player.getName()).append(" (");
+            if (flagInventory) {
+                players.append("inv");
+            }
+            if (flagEnder) {
+                if (flagInventory) {
+                    players.append(',');
+                }
+                players.append("ender");
+            }
+            players.append("), ");
+        }
+
+        if (players.length() > 0) {
+            // Matches found, delete trailing comma and space
+            players.delete(players.length() - 2, players.length());
+        } else {
+            plugin.sendMessage(sender, "messages.info.player.noMatches",
+                    "%target%", (enchant != null ? enchant.getKey().toString() : "") + " >= " + level);
+            return true;
+        }
+
+        plugin.sendMessage(sender, "messages.info.player.matches",
+                "%target%", (enchant != null ? enchant.getKey().toString() : "") + " >= " + level,
+                "%detail%", players.toString());
+        return true;
+    }
+
+    private boolean containsEnchantment(Inventory inventory, @Nullable Enchantment enchant, int minLevel) {
+        for (ItemStack item : inventory.getContents()) {
+            //noinspection ConstantConditions // Spigot improperly annotated, should be ItemStack @NotNull []
+            if (item == null || item.getType() == Material.AIR) {
+                continue;
+            }
+            if (enchant != null) {
+                if (item.containsEnchantment(enchant) && item.getEnchantmentLevel(enchant) >= minLevel) {
+                    return true;
+                }
+            } else {
+                if (!item.hasItemMeta()) {
+                    continue;
+                }
+                ItemMeta meta = item.getItemMeta();
+                if (meta == null || !meta.hasEnchants()) {
+                    continue;
+                }
+                for (int enchLevel : meta.getEnchants().values()) {
+                    if (enchLevel >= minLevel) {
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!command.testPermissionSilent(sender) || args.length < 1 || args.length > 2) {
+            return Collections.emptyList();
+        }
+
+        if (args.length == 1) {
+            return TabCompleter.completeObject(args[0], enchantment -> enchantment.getKey().toString(), Enchantment.values());
+        } else {
+            return TabCompleter.completeInteger(args[1]);
+        }
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/commands/SearchInvCommand.java

@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.commands;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.util.TabCompleter;
+import java.util.Collections;
+import java.util.List;
+import org.bukkit.Material;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+
+public class SearchInvCommand implements TabExecutor {
+
+    private final OpenInv plugin;
+
+    public SearchInvCommand(OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+
+        Material material = null;
+
+        if (args.length >= 1) {
+            material = Material.getMaterial(args[0].toUpperCase());
+        }
+
+        if (material == null) {
+            plugin.sendMessage(sender, "messages.error.invalidMaterial", "%target%", args.length > 0 ? args[0] : "null");
+            return false;
+        }
+
+        int count = 1;
+
+        if (args.length >= 2) {
+            try {
+                count = Integer.parseInt(args[1]);
+            } catch (NumberFormatException ex) {
+                plugin.sendMessage(sender, "messages.error.invalidNumber", "%target%", args[1]);
+                return false;
+            }
+        }
+
+        StringBuilder players = new StringBuilder();
+        boolean searchInv = command.getName().equals("searchinv");
+        for (Player player : plugin.getServer().getOnlinePlayers()) {
+            Inventory inventory = searchInv ? player.getInventory() : player.getEnderChest();
+            if (inventory.contains(material, count)) {
+                players.append(player.getName()).append(", ");
+            }
+        }
+
+        // Matches found, delete trailing comma and space
+        if (players.length() > 0) {
+            players.delete(players.length() - 2, players.length());
+        } else {
+            plugin.sendMessage(sender, "messages.info.player.noMatches",
+                    "%target%", material.name());
+            return true;
+        }
+
+        plugin.sendMessage(sender, "messages.info.player.matches",
+                "%target%", material.name(), "%detail%", players.toString());
+        return true;
+    }
+
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (args.length < 1 || args.length > 2 || !command.testPermissionSilent(sender)) {
+            return Collections.emptyList();
+        }
+
+        String argument = args[args.length - 1];
+        if (args.length == 1) {
+            return TabCompleter.completeEnum(argument, Material.class);
+        } else {
+            return TabCompleter.completeInteger(argument);
+        }
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/internal/IPlayerDataManager.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal;
+
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryView;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public interface IPlayerDataManager {
+
+    /**
+     * Loads a Player for an OfflinePlayer.
+     * </p>
+     * This method is potentially blocking, and should not be called on the main thread.
+     *
+     * @param offline the OfflinePlayer
+     * @return the Player loaded
+     */
+    @Nullable Player loadPlayer(@NotNull OfflinePlayer offline);
+
+    /**
+     * Creates a new Player from an existing one that will function slightly better offline.
+     *
+     * @return the Player
+     */
+    @NotNull Player inject(@NotNull Player player);
+
+    /**
+     * Opens an ISpecialInventory for a Player.
+     *
+     * @param player the Player opening the ISpecialInventory
+     * @param inventory the Inventory
+     *`
+     * @return the InventoryView opened
+     */
+    @Nullable InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory);
+
+    /**
+     * Convert a raw slot number into a player inventory slot number.
+     *
+     * <p>Note that this method is specifically for converting an ISpecialPlayerInventory slot number into a regular
+     * player inventory slot number.
+     *
+     * @param view the open inventory view
+     * @param rawSlot the raw slot in the view
+     * @return the converted slot number
+     */
+    int convertToPlayerSlot(InventoryView view, int rawSlot);
+
+}

plugin/src/main/java/com/lishid/openinv/internal/OpenInventoryView.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.internal;
+
+import com.lishid.openinv.OpenInv;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.InventoryType;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.InventoryView;
+import org.jetbrains.annotations.NotNull;
+
+public class OpenInventoryView extends InventoryView {
+
+    private final Player player;
+    private final ISpecialInventory inventory;
+    private final String titleKey;
+    private final String titleDefaultSuffix;
+    private String title;
+
+    public OpenInventoryView(Player player, ISpecialInventory inventory, String titleKey, String titleDefaultSuffix) {
+        this.player = player;
+        this.inventory = inventory;
+        this.titleKey = titleKey;
+        this.titleDefaultSuffix = titleDefaultSuffix;
+    }
+
+    @Override
+    public @NotNull Inventory getTopInventory() {
+        return inventory.getBukkitInventory();
+    }
+
+    @Override
+    public @NotNull Inventory getBottomInventory() {
+        return getPlayer().getInventory();
+    }
+
+    @Override
+    public @NotNull HumanEntity getPlayer() {
+        return player;
+    }
+
+    @Override
+    public @NotNull InventoryType getType() {
+        return inventory.getBukkitInventory().getType();
+    }
+
+    @Override
+    public @NotNull String getTitle() {
+        if (title == null) {
+            HumanEntity owner = inventory.getPlayer();
+
+            String localTitle = OpenInv.getPlugin(OpenInv.class)
+                    .getLocalizedMessage(
+                            owner,
+                            titleKey,
+                            "%player%",
+                            owner.getName());
+            if (localTitle != null) {
+                title = localTitle;
+            } else  {
+                title = owner.getName() + titleDefaultSuffix;
+            }
+        }
+
+        return title;
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/listeners/InventoryListener.java

@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.listeners;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import com.lishid.openinv.util.InventoryAccess;
+import com.lishid.openinv.util.Permissions;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+import org.bukkit.GameMode;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.inventory.InventoryAction;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.bukkit.event.inventory.InventoryDragEvent;
+import org.bukkit.event.inventory.InventoryInteractEvent;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.InventoryView;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Listener for inventory-related events to prevent modification of inventories where not allowed.
+ *
+ * @author Jikoo
+ */
+public class InventoryListener implements Listener {
+
+    private final OpenInv plugin;
+
+    public InventoryListener(final OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    @EventHandler
+    public void onInventoryClose(@NotNull final InventoryCloseEvent event) {
+        if (!(event.getPlayer() instanceof Player)) {
+            return;
+        }
+
+        Player player = (Player) event.getPlayer();
+
+        if (this.plugin.getPlayerSilentChestStatus(player)) {
+            this.plugin.getAnySilentContainer().deactivateContainer(player);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onInventoryClick(@NotNull final InventoryClickEvent event) {
+        if (handleInventoryInteract(event)) {
+            return;
+        }
+
+        // Safe cast - has to be a player to be the holder of a special player inventory.
+        Player player = (Player) event.getWhoClicked();
+
+        if (event.getAction() != InventoryAction.MOVE_TO_OTHER_INVENTORY) {
+            // All own-inventory interactions require updates to display properly.
+            // Update in same tick after event completion.
+            this.plugin.getServer().getScheduler().runTask(this.plugin, player::updateInventory);
+            return;
+        }
+
+        // Extra handling for MOVE_TO_OTHER_INVENTORY - apparently Mojang no longer removes the item from the target
+        // inventory prior to adding it to existing stacks.
+        ItemStack currentItem = event.getCurrentItem();
+        if (currentItem == null) {
+            // Other plugin doing some sort of handling (would be NOTHING for null item otherwise), ignore.
+            return;
+        }
+
+        ItemStack clone = currentItem.clone();
+        event.setCurrentItem(null);
+
+        // Complete add action in same tick after event completion.
+        this.plugin.getServer().getScheduler().runTask(this.plugin, () -> {
+            player.getInventory().addItem(clone);
+            player.updateInventory();
+        });
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onInventoryDrag(@NotNull final InventoryDragEvent event) {
+        if (handleInventoryInteract(event)) {
+            return;
+        }
+
+        InventoryView view = event.getView();
+        int topSize = view.getTopInventory().getSize();
+
+        // Get bottom inventory active slots as player inventory slots.
+        Set<Integer> slots = event.getRawSlots().stream()
+                .filter(slot -> slot >= topSize)
+                .map(slot -> plugin.convertToPlayerSlot(view, slot)).collect(Collectors.toSet());
+
+        int overlapLosses = 0;
+
+        // Count overlapping slots.
+        for (Map.Entry<Integer, ItemStack> newItem : event.getNewItems().entrySet()) {
+            int rawSlot = newItem.getKey();
+
+            // Skip bottom inventory slots.
+            if (rawSlot >= topSize) {
+                continue;
+            }
+
+            int convertedSlot = plugin.convertToPlayerSlot(view, rawSlot);
+
+            if (slots.contains(convertedSlot)) {
+                overlapLosses += getCountDiff(view.getItem(rawSlot), newItem.getValue());
+            }
+        }
+
+        // Allow no overlap to proceed as usual.
+        if (overlapLosses < 1) {
+            return;
+        }
+
+        ItemStack cursor = event.getCursor();
+        if (cursor != null) {
+            cursor.setAmount(cursor.getAmount() + overlapLosses);
+        } else {
+            cursor = event.getOldCursor().clone();
+            cursor.setAmount(overlapLosses);
+        }
+
+        event.setCursor(cursor);
+    }
+
+    private int getCountDiff(@Nullable ItemStack original, @NotNull ItemStack result) {
+        if (original == null || original.getType() != result.getType()) {
+            return result.getAmount();
+        }
+
+        return result.getAmount() - original.getAmount();
+    }
+
+    /**
+     * Handle common InventoryInteractEvent functions.
+     *
+     * @param event the InventoryInteractEvent
+     * @return true unless the top inventory is the holder's own inventory
+     */
+    private boolean handleInventoryInteract(@NotNull final InventoryInteractEvent event) {
+        HumanEntity entity = event.getWhoClicked();
+
+        // Un-cancel spectator interactions.
+        if (Permissions.SPECTATE.hasPermission(entity) && entity.getGameMode() == GameMode.SPECTATOR) {
+            event.setCancelled(false);
+        }
+
+        if (event.isCancelled()) {
+            return true;
+        }
+
+        Inventory inventory = event.getView().getTopInventory();
+
+        // Is the inventory a special ender chest?
+        if (InventoryAccess.isEnderChest(inventory)) {
+            // Disallow ender chest interaction for users without edit permission.
+            if (!Permissions.EDITENDER.hasPermission(entity)) {
+                event.setCancelled(true);
+            }
+            return true;
+        }
+
+        ISpecialPlayerInventory playerInventory = InventoryAccess.getPlayerInventory(inventory);
+
+        // Ignore inventories other than special player inventories.
+        if (playerInventory == null) {
+            return true;
+        }
+
+        // Disallow player inventory interaction for users without edit permission.
+        if (!Permissions.EDITINV.hasPermission(entity)) {
+            event.setCancelled(true);
+            return true;
+        }
+
+        // Only specially handle actions in the player's own inventory.
+        return !event.getWhoClicked().equals(playerInventory.getPlayer());
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/listeners/PlayerListener.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.listeners;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.util.Permissions;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Event.Result;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerChangedWorldEvent;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+
+public class PlayerListener implements Listener {
+
+    private final OpenInv plugin;
+
+    public PlayerListener(OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onPlayerJoin(final PlayerJoinEvent event) {
+        plugin.setPlayerOnline(event.getPlayer());
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        plugin.setPlayerOffline(event.getPlayer());
+    }
+
+    @EventHandler
+    public void onWorldChange(PlayerChangedWorldEvent event) {
+        plugin.changeWorld(event.getPlayer());
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
+    public void onPlayerInteract(PlayerInteractEvent event) {
+
+        // Do not cancel 3rd party plugins' custom events
+        if (!PlayerInteractEvent.class.equals(event.getClass())) {
+            return;
+        }
+
+        if (event.getAction() != Action.RIGHT_CLICK_BLOCK || event.getPlayer().isSneaking()
+                || event.useInteractedBlock() == Result.DENY || event.getClickedBlock() == null
+                || !plugin.getAnySilentContainer().isAnySilentContainer(event.getClickedBlock())) {
+            return;
+        }
+
+        Player player = event.getPlayer();
+        boolean any = Permissions.ANYCHEST.hasPermission(player) && plugin.getPlayerAnyChestStatus(player);
+        boolean needsAny = plugin.getAnySilentContainer().isAnyContainerNeeded(player, event.getClickedBlock());
+
+        if (!any && needsAny) {
+            return;
+        }
+
+        boolean silent = Permissions.SILENT.hasPermission(player) && plugin.getPlayerSilentChestStatus(player);
+
+        // If anycontainer or silentcontainer is active
+        if (any || silent) {
+            if (plugin.getAnySilentContainer().activateContainer(player, silent, event.getClickedBlock())) {
+                if (silent && plugin.notifySilentChest() && needsAny && plugin.notifyAnyChest()) {
+                    plugin.sendSystemMessage(player, "messages.info.containerBlockedSilent");
+                } else if (needsAny && plugin.notifyAnyChest()) {
+                    plugin.sendSystemMessage(player, "messages.info.containerBlocked");
+                } else if (silent && plugin.notifySilentChest()) {
+                    plugin.sendSystemMessage(player, "messages.info.containerSilent");
+                }
+            }
+            event.setCancelled(true);
+        }
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/listeners/PluginListener.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.listeners;
+
+import com.lishid.openinv.OpenInv;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.server.PluginDisableEvent;
+
+/**
+ * Listener for plugin-related events.
+ *
+ * @author Jikoo
+ */
+public class PluginListener implements Listener {
+
+    private final OpenInv plugin;
+
+    public PluginListener(OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    @EventHandler
+    public void onPluginDisable(PluginDisableEvent event) {
+        plugin.releaseAllPlayers(event.getPlugin());
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/util/Cache.java

@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.util;
+
+import com.google.common.collect.Multimap;
+import com.google.common.collect.TreeMultimap;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+
+/**
+ * A minimal thread-safe time-based cache implementation backed by a HashMap and TreeMultimap.
+ *
+ * @author Jikoo
+ */
+public class Cache<K, V> {
+
+    private final Map<K, V> internal;
+    private final Multimap<Long, K> expiry;
+    private final long retention;
+    private final Predicate<V> inUseCheck;
+    private final Consumer<V> postRemoval;
+
+    /**
+     * Constructs a Cache with the specified retention duration, in use function, and post-removal function.
+     *
+     * @param retention duration after which keys are automatically invalidated if not in use
+     * @param inUseCheck Predicate used to check if a key is considered in use
+     * @param postRemoval Consumer used to perform any operations required when a key is invalidated
+     */
+    public Cache(final long retention, final Predicate<V> inUseCheck, final Consumer<V> postRemoval) {
+        this.internal = new HashMap<>();
+
+        this.expiry = TreeMultimap.create(Long::compareTo, (k1, k2) -> Objects.equals(k1, k2) ? 0 : 1);
+
+        this.retention = retention;
+        this.inUseCheck = inUseCheck;
+        this.postRemoval = postRemoval;
+    }
+
+    /**
+     * Set a key and value pair. Keys are unique. Using an existing key will cause the old value to
+     * be overwritten and the expiration timer to be reset.
+     *
+     * @param key key with which the specified value is to be associated
+     * @param value value to be associated with the specified key
+     */
+    public void put(final K key, final V value) {
+        // Invalidate key - runs lazy check and ensures value won't be cleaned up early
+        this.invalidate(key);
+
+        synchronized (this.internal) {
+            this.internal.put(key, value);
+            this.expiry.put(System.currentTimeMillis() + this.retention, key);
+        }
+    }
+
+    /**
+     * Returns the value to which the specified key is mapped, or null if no value is mapped for the key.
+     *
+     * @param key the key whose associated value is to be returned
+     * @return the value to which the specified key is mapped, or null if no value is mapped for the key
+     */
+    public V get(final K key) {
+        // Run lazy check to clean cache
+        this.lazyCheck();
+
+        synchronized (this.internal) {
+            return this.internal.get(key);
+        }
+    }
+
+    /**
+     * Returns true if the specified key is mapped to a value.
+     *
+     * @param key key to check if a mapping exists for
+     * @return true if a mapping exists for the specified key
+     */
+    public boolean containsKey(final K key) {
+        // Run lazy check to clean cache
+        this.lazyCheck();
+
+        synchronized (this.internal) {
+            return this.internal.containsKey(key);
+        }
+    }
+
+    /**
+     * Forcibly invalidates a key, even if it is considered to be in use.
+     *
+     * @param key key to invalidate
+     */
+    public void invalidate(final K key) {
+        // Run lazy check to clean cache
+        this.lazyCheck();
+
+        synchronized (this.internal) {
+            if (!this.internal.containsKey(key)) {
+                // Value either not present or cleaned by lazy check. Either way, we're good
+                return;
+            }
+
+            // Remove stored object
+            this.internal.remove(key);
+
+            // Remove expiration entry - prevents more work later, plus prevents issues with values invalidating early
+            for (Iterator<Map.Entry<Long, K>> iterator = this.expiry.entries().iterator(); iterator.hasNext();) {
+                if (key.equals(iterator.next().getValue())) {
+                    iterator.remove();
+                    break;
+                }
+            }
+        }
+    }
+
+    /**
+     * Forcibly invalidates all keys, even if they are considered to be in use.
+     */
+    public void invalidateAll() {
+        synchronized (this.internal) {
+            for (V value : this.internal.values()) {
+                this.postRemoval.accept(value);
+            }
+            this.expiry.clear();
+            this.internal.clear();
+        }
+    }
+
+    /**
+     * Invalidate all expired keys that are not considered in use. If a key is expired but is
+     * considered in use by the provided Function, its expiration time is reset.
+     */
+    private void lazyCheck() {
+        long now = System.currentTimeMillis();
+        synchronized (this.internal) {
+            List<K> inUse = new ArrayList<>();
+            for (Iterator<Map.Entry<Long, K>> iterator = this.expiry.entries().iterator(); iterator
+                    .hasNext();) {
+                Map.Entry<Long, K> entry = iterator.next();
+
+                if (entry.getKey() > now) {
+                    break;
+                }
+
+                iterator.remove();
+
+                if (this.inUseCheck.test(this.internal.get(entry.getValue()))) {
+                    inUse.add(entry.getValue());
+                    continue;
+                }
+
+                V value = this.internal.remove(entry.getValue());
+
+                if (value == null) {
+                    continue;
+                }
+
+                this.postRemoval.accept(value);
+            }
+
+            long nextExpiry = now + this.retention;
+            for (K value : inUse) {
+                this.expiry.put(nextExpiry, value);
+            }
+        }
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/util/ConfigUpdater.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.util;
+
+import com.lishid.openinv.OpenInv;
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.configuration.ConfigurationSection;
+
+public class ConfigUpdater {
+
+    private final OpenInv plugin;
+
+    public ConfigUpdater(OpenInv plugin) {
+        this.plugin = plugin;
+    }
+
+    public void checkForUpdates() {
+        final int version = plugin.getConfig().getInt("config-version", 1);
+        ConfigurationSection defaults = plugin.getConfig().getDefaults();
+        if (defaults == null || version >= defaults.getInt("config-version")) {
+            return;
+        }
+
+        plugin.getLogger().info("Configuration update found! Performing update...");
+
+        // Backup the old config file
+        try {
+            plugin.getConfig().save(new File(plugin.getDataFolder(), "config_old.yml"));
+            plugin.getLogger().info("Backed up config.yml to config_old.yml before updating.");
+        } catch (IOException e) {
+            plugin.getLogger().warning("Could not back up config.yml before updating!");
+        }
+
+        plugin.getServer().getScheduler().runTaskAsynchronously(plugin, () -> {
+            if (version < 2) {
+                updateConfig1To2();
+            }
+            if (version < 3) {
+                updateConfig2To3();
+            }
+            if (version < 4) {
+                updateConfig3To4();
+            }
+
+            plugin.getServer().getScheduler().runTask(plugin, () -> {
+                plugin.saveConfig();
+                plugin.getLogger().info("Configuration update complete!");
+            });
+        });
+    }
+
+    private void updateConfig3To4() {
+        plugin.getServer().getScheduler().runTask(plugin, () -> {
+            plugin.getConfig().set("notify", null);
+            plugin.getConfig().set("settings.locale", "en_US");
+            plugin.getConfig().set("config-version", 4);
+        });
+    }
+
+    private void updateConfig2To3() {
+        plugin.getServer().getScheduler().runTask(plugin, () -> {
+            plugin.getConfig().set("config-version", 3);
+            plugin.getConfig().set("items.open-inv", null);
+            plugin.getConfig().set("ItemOpenInv", null);
+            plugin.getConfig().set("toggles.items.open-inv", null);
+            plugin.getConfig().set("settings.disable-saving",
+                    plugin.getConfig().getBoolean("DisableSaving", false));
+            plugin.getConfig().set("DisableSaving", null);
+        });
+    }
+
+    private void updateConfig1To2() {
+        plugin.getServer().getScheduler().runTask(plugin, () -> {
+            // Get the old config settings
+            boolean notifySilentChest = plugin.getConfig().getBoolean("NotifySilentChest", true);
+            boolean notifyAnyChest = plugin.getConfig().getBoolean("NotifyAnyChest", true);
+            plugin.getConfig().set("ItemOpenInvItemID", null);
+            plugin.getConfig().set("NotifySilentChest", null);
+            plugin.getConfig().set("NotifyAnyChest", null);
+            plugin.getConfig().set("config-version", 2);
+            plugin.getConfig().set("notify.any-chest", notifyAnyChest);
+            plugin.getConfig().set("notify.silent-chest", notifySilentChest);
+        });
+
+        updateToggles("AnyChest", "toggles.any-chest");
+        updateToggles("SilentChest", "toggles.silent-chest");
+    }
+
+    private void updateToggles(final String sectionName, final String newSectionName) {
+        ConfigurationSection section = plugin.getConfig().getConfigurationSection(sectionName);
+        // Ensure section exists
+        if (section == null) {
+            return;
+        }
+
+        Set<String> keys = section.getKeys(false);
+
+        // Ensure section has content
+        if (keys.isEmpty()) {
+            return;
+        }
+
+        final Map<String, Boolean> toggles = new HashMap<>();
+
+        for (String playerName : keys) {
+            OfflinePlayer player = plugin.matchPlayer(playerName);
+            if (player != null) {
+                toggles.put(plugin.getPlayerID(player), section.getBoolean(playerName + ".toggle", false));
+            }
+        }
+
+        plugin.getServer().getScheduler().runTask(plugin, () -> {
+            // Wipe old ConfigurationSection
+            plugin.getConfig().set(sectionName, null);
+
+            // Prepare new ConfigurationSection
+            ConfigurationSection newSection = plugin.getConfig().getConfigurationSection(newSectionName);
+            if (newSection == null) {
+                newSection = plugin.getConfig().createSection(newSectionName);
+            }
+            // Set new values
+            for (Map.Entry<String, Boolean> entry : toggles.entrySet()) {
+                newSection.set(entry.getKey(), entry.getValue());
+            }
+        });
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/util/InternalAccessor.java

@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2011-2022 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.util;
+
+import com.lishid.openinv.internal.IAnySilentContainer;
+import com.lishid.openinv.internal.IPlayerDataManager;
+import com.lishid.openinv.internal.ISpecialEnderChest;
+import com.lishid.openinv.internal.ISpecialInventory;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;
+
+public class InternalAccessor {
+
+    private final Plugin plugin;
+    private final String version;
+    private boolean supported = false;
+    private IPlayerDataManager playerDataManager;
+    private IAnySilentContainer anySilentContainer;
+
+    public InternalAccessor(final Plugin plugin) {
+        this.plugin = plugin;
+
+        String packageName = plugin.getServer().getClass().getPackage().getName();
+        this.version = packageName.substring(packageName.lastIndexOf('.') + 1);
+
+        try {
+            Class.forName("com.lishid.openinv.internal." + this.version + ".SpecialPlayerInventory");
+            Class.forName("com.lishid.openinv.internal." + this.version + ".SpecialEnderChest");
+            this.playerDataManager = this.createObject(IPlayerDataManager.class, "PlayerDataManager");
+            this.anySilentContainer = this.createObject(IAnySilentContainer.class, "AnySilentContainer");
+            this.supported = InventoryAccess.isUsable();
+        } catch (Exception ignored) {}
+    }
+
+    public String getReleasesLink() {
+        switch (version) {
+            case "1_4_5":
+            case "1_4_6":
+            case "v1_4_R1":
+            case "v1_5_R2":
+            case "v1_5_R3":
+            case "v1_6_R1":
+            case "v1_6_R2":
+            case "v1_6_R3":
+            case "v1_7_R1":
+            case "v1_7_R2":
+            case "v1_7_R3":
+            case "v1_7_R4":
+            case "v1_8_R1":
+            case "v1_8_R2":
+            case "v1_9_R1":
+            case "v1_9_R2":
+            case "v1_10_R1":
+            case "v1_11_R1":
+            case "v1_12_R1":
+                return "https://github.com/lishid/OpenInv/releases/tag/4.0.0 (OpenInv-legacy)";
+            case "v1_13_R1":
+                return "https://github.com/lishid/OpenInv/releases/tag/4.0.0";
+            case "v1_13_R2":
+                return "https://github.com/lishid/OpenInv/releases/tag/4.0.7";
+            case "v1_14_R1":
+                return "https://github.com/lishid/OpenInv/releases/tag/4.1.1";
+            case "v1_16_R1":
+                return "https://github.com/lishid/OpenInv/releases/tag/4.1.4";
+            case "v1_8_R3":
+            case "v1_15_R1":
+            case "v1_16_R2":
+                return "https://github.com/lishid/OpenInv/releases/tag/4.1.5";
+            case "v1_16_R3":
+            default:
+                return "https://github.com/Jikoo/OpenInv/releases";
+        }
+    }
+
+    private <T> T createObject(final Class<? extends T> assignableClass, final String className,
+            final Object... params) throws ClassCastException, ClassNotFoundException,
+            InstantiationException, IllegalAccessException, IllegalArgumentException,
+            InvocationTargetException, NoSuchMethodException, SecurityException {
+        // Fetch internal class if it exists.
+        Class<?> internalClass = Class.forName("com.lishid.openinv.internal." + this.version + "." + className);
+        if (!assignableClass.isAssignableFrom(internalClass)) {
+            String message = String.format("Found class %s but cannot cast to %s!", internalClass.getName(), assignableClass.getName());
+            this.plugin.getLogger().warning(message);
+            throw new IllegalStateException(message);
+        }
+
+        // Quick return: no parameters, no need to fiddle about finding the correct constructor.
+        if (params.length == 0) {
+            return assignableClass.cast(internalClass.getConstructor().newInstance());
+        }
+
+        // Search constructors for one matching the given parameters
+        nextConstructor: for (Constructor<?> constructor : internalClass.getConstructors()) {
+            Class<?>[] requiredClasses = constructor.getParameterTypes();
+            if (requiredClasses.length != params.length) {
+                continue;
+            }
+            for (int i = 0; i < params.length; ++i) {
+                if (!requiredClasses[i].isAssignableFrom(params[i].getClass())) {
+                    continue nextConstructor;
+                }
+            }
+            return assignableClass.cast(constructor.newInstance(params));
+        }
+
+        StringBuilder builder = new StringBuilder("Found class ").append(internalClass.getName())
+                .append(" but cannot find any matching constructors for [");
+        for (Object object : params) {
+            builder.append(object.getClass().getName()).append(", ");
+        }
+        builder.delete(builder.length() - 2, builder.length());
+
+        String message = builder.append(']').toString();
+        this.plugin.getLogger().warning(message);
+
+        throw new IllegalArgumentException(message);
+    }
+
+    private <T extends ISpecialInventory> T createSpecialInventory(
+            @NotNull Class<? extends T> assignableClass,
+            @NotNull String className,
+            @NotNull Player player,
+            boolean online) throws InstantiationException {
+        if (!this.supported) {
+            throw new IllegalStateException(String.format("Unsupported server version %s!", this.version));
+        }
+        try {
+            return this.createObject(assignableClass, className, player, online);
+        } catch (Exception original) {
+            InstantiationException exception = new InstantiationException(String.format("Unable to create a new %s", className));
+            exception.initCause(original.fillInStackTrace());
+            throw exception;
+        }
+    }
+
+    /**
+     * Creates an instance of the IAnySilentContainer implementation for the current server version.
+     *
+     * @return the IAnySilentContainer
+     * @throws IllegalStateException if server version is unsupported
+     */
+    public IAnySilentContainer getAnySilentContainer() {
+        if (!this.supported) {
+            throw new IllegalStateException(String.format("Unsupported server version %s!", this.version));
+        }
+        return this.anySilentContainer;
+    }
+
+    /**
+     * Creates an instance of the IPlayerDataManager implementation for the current server version.
+     *
+     * @return the IPlayerDataManager
+     * @throws IllegalStateException if server version is unsupported
+     */
+    public IPlayerDataManager getPlayerDataManager() {
+        if (!this.supported) {
+            throw new IllegalStateException(String.format("Unsupported server version %s!", this.version));
+        }
+        return this.playerDataManager;
+    }
+
+    /**
+     * Gets the server implementation version. If not initialized, returns the string "null"
+     * instead.
+     *
+     * @return the version, or "null"
+     */
+    public String getVersion() {
+        return this.version != null ? this.version : "null";
+    }
+
+    /**
+     * Checks if the server implementation is supported.
+     *
+     * @return true if initialized for a supported server version
+     */
+    public boolean isSupported() {
+        return this.supported;
+    }
+
+    /**
+     * Creates an instance of the ISpecialEnderChest implementation for the given Player, or
+     * null if the current version is unsupported.
+     *
+     * @param player the Player
+     * @param online true if the Player is online
+     * @return the ISpecialEnderChest created
+     * @throws InstantiationException if the ISpecialEnderChest could not be instantiated
+     */
+    public ISpecialEnderChest newSpecialEnderChest(final Player player, final boolean online) throws InstantiationException {
+        return this.createSpecialInventory(ISpecialEnderChest.class, "SpecialEnderChest", player, online);
+    }
+
+    /**
+     * Creates an instance of the ISpecialPlayerInventory implementation for the given Player..
+     *
+     * @param player the Player
+     * @param online true if the Player is online
+     * @return the ISpecialPlayerInventory created
+     * @throws InstantiationException if the ISpecialPlayerInventory could not be instantiated
+     */
+    public ISpecialPlayerInventory newSpecialPlayerInventory(final Player player, final boolean online) throws InstantiationException {
+        return this.createSpecialInventory(ISpecialPlayerInventory.class, "SpecialPlayerInventory", player, online);
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/util/LanguageManager.java

@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.util;
+
+import com.lishid.openinv.OpenInv;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+import org.bukkit.ChatColor;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * A simple language manager supporting both custom and bundled languages.
+ *
+ * @author Jikoo
+ */
+public class LanguageManager {
+
+	private final OpenInv plugin;
+	private final String defaultLocale;
+	private final Map<String, YamlConfiguration> locales;
+
+	public LanguageManager(@NotNull OpenInv plugin, @NotNull String defaultLocale) {
+		this.plugin = plugin;
+		this.defaultLocale = defaultLocale;
+		this.locales = new HashMap<>();
+		getOrLoadLocale(defaultLocale);
+	}
+
+	private YamlConfiguration getOrLoadLocale(@NotNull String locale) {
+		YamlConfiguration loaded = locales.get(locale);
+		if (loaded != null) {
+			return loaded;
+		}
+
+		InputStream resourceStream = plugin.getResource(locale + ".yml");
+		YamlConfiguration localeConfigDefaults;
+		if (resourceStream == null) {
+			localeConfigDefaults = new YamlConfiguration();
+		} else {
+			try (BufferedReader reader = new BufferedReader(new InputStreamReader(resourceStream))) {
+				localeConfigDefaults = YamlConfiguration.loadConfiguration(reader);
+			} catch (IOException e) {
+				plugin.getLogger().log(Level.WARNING, "[LanguageManager] Unable to load resource " + locale + ".yml", e);
+				localeConfigDefaults = new YamlConfiguration();
+			}
+		}
+
+		File file = new File(plugin.getDataFolder(), locale + ".yml");
+		YamlConfiguration localeConfig;
+
+		if (!file.exists()) {
+			localeConfig = localeConfigDefaults;
+			try {
+				localeConfigDefaults.save(file);
+			} catch (IOException e) {
+				plugin.getLogger().log(Level.WARNING, "[LanguageManager] Unable to save resource " + locale + ".yml", e);
+			}
+		} else {
+			localeConfig = YamlConfiguration.loadConfiguration(file);
+
+			// Add new language keys
+			List<String> newKeys = new ArrayList<>();
+			for (String key : localeConfigDefaults.getKeys(true)) {
+				if (localeConfigDefaults.isConfigurationSection(key)) {
+					continue;
+				}
+
+				if (localeConfig.isSet(key)) {
+					continue;
+				}
+
+				localeConfig.set(key, localeConfigDefaults.get(key));
+				newKeys.add(key);
+			}
+
+			if (!newKeys.isEmpty()) {
+				plugin.getLogger().info("[LanguageManager] Added new language keys: " + String.join(", ", newKeys));
+				try {
+					localeConfig.save(file);
+				} catch (IOException e) {
+					plugin.getLogger().log(Level.WARNING, "[LanguageManager] Unable to save resource " + locale + ".yml", e);
+				}
+			}
+		}
+
+		if (!locale.equals(defaultLocale)) {
+			localeConfigDefaults = locales.get(defaultLocale);
+
+			// Check for missing keys
+			List<String> newKeys = new ArrayList<>();
+			for (String key : localeConfigDefaults.getKeys(true)) {
+				if (localeConfigDefaults.isConfigurationSection(key)) {
+					continue;
+				}
+
+				if (localeConfig.isSet(key)) {
+					continue;
+				}
+
+				newKeys.add(key);
+			}
+
+			if (!newKeys.isEmpty()) {
+				plugin.getLogger().info("[LanguageManager] Missing translations from " + locale + ".yml: " + String.join(", ", newKeys));
+			}
+
+			// Fall through to default locale
+			localeConfig.setDefaults(localeConfigDefaults);
+		}
+
+		locales.put(locale, localeConfig);
+		return localeConfig;
+	}
+
+	@Nullable
+	public String getValue(@NotNull String key, @Nullable String locale) {
+		String value = getOrLoadLocale(locale == null ? defaultLocale : locale.toLowerCase()).getString(key);
+		if (value == null || value.isEmpty()) {
+			return null;
+		}
+
+		value = ChatColor.translateAlternateColorCodes('&', value);
+
+		return value;
+	}
+
+	@Nullable
+	public String getValue(@NotNull String key, @Nullable String locale, @NotNull String... replacements) {
+		if (replacements.length % 2 != 0) {
+			plugin.getLogger().log(Level.WARNING, "[LanguageManager] Replacement data is uneven", new Exception());
+		}
+
+		String value = getValue(key, locale);
+
+		if (value == null) {
+			return null;
+		}
+
+		for (int i = 0; i < replacements.length; i += 2) {
+			value = value.replace(replacements[i], replacements[i + 1]);
+		}
+
+		return value;
+	}
+
+}

plugin/src/main/java/com/lishid/openinv/util/Permissions.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.util;
+
+import org.bukkit.permissions.Permissible;
+
+public enum Permissions {
+
+    OPENINV("openinv"),
+    OVERRIDE("override"),
+    EXEMPT("exempt"),
+    CROSSWORLD("crossworld"),
+    SILENT("silent"),
+    SILENT_DEFAULT("silent.default", true),
+    ANYCHEST("anychest"),
+    ANY_DEFAULT("any.default", true),
+    ENDERCHEST("openender"),
+    ENDERCHEST_ALL("openenderall"),
+    SEARCH("search"),
+    EDITINV("editinv"),
+    EDITENDER("editender"),
+    OPENSELF("openself"),
+    OPENONLINE("openonline"),
+    OPENOFFLINE("openoffline"),
+    SPECTATE("spectate");
+
+    private final String permission;
+    private final boolean uninheritable;
+
+    Permissions(String permission) {
+        this(permission, false);
+    }
+
+    Permissions(String permission, boolean uninheritable) {
+        this.permission = "OpenInv." + permission;
+        this.uninheritable = uninheritable;
+    }
+
+    public boolean hasPermission(Permissible permissible) {
+
+        boolean hasPermission = permissible.hasPermission(permission);
+        if (uninheritable || hasPermission || permissible.isPermissionSet(permission)) {
+            return hasPermission;
+        }
+
+        StringBuilder permissionDestroyer = new StringBuilder(permission);
+        for (int lastPeriod = permissionDestroyer.lastIndexOf("."); lastPeriod > 0;
+                lastPeriod = permissionDestroyer.lastIndexOf(".")) {
+            permissionDestroyer.delete(lastPeriod + 1, permissionDestroyer.length()).append('*');
+
+            hasPermission = permissible.hasPermission(permissionDestroyer.toString());
+            if (hasPermission || permissible.isPermissionSet(permissionDestroyer.toString())) {
+                return hasPermission;
+            }
+
+            permissionDestroyer.delete(lastPeriod, permissionDestroyer.length());
+
+        }
+
+        return permissible.hasPermission("*");
+
+    }
+
+}

plugin/src/main/java/com/lishid/openinv/util/TabCompleter.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2011-2021 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lishid.openinv.util;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.function.Function;
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.util.StringUtil;
+
+/**
+ * Utility class for common tab completions.
+ */
+public class TabCompleter {
+
+    /**
+     * Offer tab completions for whole numbers.
+     *
+     * @param argument the argument to complete
+     * @return integer options
+     */
+    public static List<String> completeInteger(String argument) {
+        // Ensure existing argument is actually a number
+        if (!argument.isEmpty()) {
+            try {
+                Integer.parseInt(argument);
+            } catch (NumberFormatException e) {
+                return Collections.emptyList();
+            }
+        }
+
+        List<String> completions = new ArrayList<>(10);
+        for (int i = 0; i < 10; ++i) {
+            completions.add(argument + i);
+        }
+
+        return completions;
+    }
+
+    /**
+     * Offer tab completions for a given Enum.
+     *
+     * @param argument the argument to complete
+     * @param enumClazz the Enum to complete for
+     * @return the matching Enum values
+     */
+    public static List<String> completeEnum(String argument, Class<? extends Enum<?>> enumClazz) {
+        argument = argument.toLowerCase(Locale.ENGLISH);
+        List<String> completions = new ArrayList<>();
+
+        for (Enum<?> enumConstant : enumClazz.getEnumConstants()) {
+            String name = enumConstant.name().toLowerCase();
+            if (name.startsWith(argument)) {
+                completions.add(name);
+            }
+        }
+
+        return completions;
+    }
+
+    /**
+     * Offer tab completions for a given array of Strings.
+     *
+     * @param argument the argument to complete
+     * @param options the Strings which may be completed
+     * @return the matching Strings
+     */
+    public static List<String> completeString(String argument, String[] options) {
+        argument = argument.toLowerCase(Locale.ENGLISH);
+        List<String> completions = new ArrayList<>();
+
+        for (String option : options) {
+            if (option.startsWith(argument)) {
+                completions.add(option);
+            }
+        }
+
+        return completions;
+    }
+
+    /**
+     * Offer tab completions for visible online Players' names.
+     *
+     * @param sender the command's sender
+     * @param argument the argument to complete
+     * @return the matching Players' names
+     */
+    public static List<String> completeOnlinePlayer(CommandSender sender, String argument) {
+        List<String> completions = new ArrayList<>();
+        Player senderPlayer = sender instanceof Player ? (Player) sender : null;
+
+        for (Player player : Bukkit.getOnlinePlayers()) {
+            if (senderPlayer != null && !senderPlayer.canSee(player)) {
+                continue;
+            }
+
+            if (StringUtil.startsWithIgnoreCase(player.getName(), argument)) {
+                completions.add(player.getName());
+            }
+        }
+
+        return completions;
+    }
+
+    /**
+     * Offer tab completions for a given array of Objects.
+     *
+     * @param argument the argument to complete
+     * @param converter the Function for converting the Object into a comparable String
+     * @param options the Objects which may be completed
+     * @return the matching Strings
+     */
+    public static <T> List<String> completeObject(String argument, Function<T, String> converter, T[] options) {
+        argument = argument.toLowerCase(Locale.ENGLISH);
+        List<String> completions = new ArrayList<>();
+
+        for (T option : options) {
+            String optionString = converter.apply(option).toLowerCase();
+            if (optionString.startsWith(argument)) {
+                completions.add(optionString);
+            }
+        }
+
+        return completions;
+    }
+
+    private TabCompleter() {}
+
+}

plugin/src/main/resources/config.yml

@@ -0,0 +1,4 @@
+config-version: 4
+settings:
+  disable-saving: false
+  locale: 'en_us'

plugin/src/main/resources/de_de.yml

@@ -0,0 +1,30 @@
+messages:
+  error:
+    consoleUnsupported: 'Du kannst diesen Befehl nicht von der Konsole ausführen.'
+    lootNotGenerated: '&cBeute noch nicht erstellt! Bitte schalte &b/silentcontainer&c aus.'
+    invalidMaterial: '&cUngültiges Material: "%target%"'
+    invalidNumber: '&cUngültige Nummer: "%target%"'
+    invalidPlayer: '&cSpieler nicht gefunden.'
+    permissionOpenSelf: '&cDu darfst dein eigenes Inventar nicht öffnen.'
+    permissionEnderAll: '&cDu darfst die Endertruhen von anderen Spielern nicht öffnen.'
+    permissionExempt: '&c%target%''s Inventar ist geschützt.'
+    permissionCrossWorld: '&c%target% ist nicht in der selben Welt wie du.'
+    permissionPlayerOnline: '&cDu darfst keine Inventare von Spielern öffnen, die online sind.'
+    permissionPlayerOffline: '&cDu darfst keine Inventare von Spielern öffnen, die offline sind.'
+    commandException: '&cAn error occurred. Please check console for details.'
+  info:
+    containerBlocked: 'Du öffnest einen gesperrten Container.'
+    containerBlockedSilent: 'Du öffnest einen gesperrten Container lautlos.'
+    containerSilent: 'Du öffnest einen Container lautlos.'
+    settingState: '%setting%: %state%'
+    player:
+      noMatches: 'Keine Spieler mit %target% gefunden.'
+      matches: 'Spieler hält %target%: %detail%'
+    container:
+      noMatches: 'Keine Container mit %target% gefunden.'
+      matches: 'Container hat %target%: %detail%'
+    on: 'an'
+    off: 'aus'
+container:
+  player: '%player%''s Inventar'
+  enderchest: '%player%''s Endertruhe'

plugin/src/main/resources/en_us.yml

@@ -0,0 +1,30 @@
+messages:
+  error:
+    consoleUnsupported: 'You cannot use this command from console.'
+    lootNotGenerated: '&cLoot not generated! Please disable &b/silentcontainer&c.'
+    invalidMaterial: '&cInvalid material: "%target%"'
+    invalidNumber: '&cInvalid number: "%target%"'
+    invalidPlayer: '&cPlayer not found!'
+    permissionOpenSelf: '&cYou''re not allowed to open your own inventory.'
+    permissionEnderAll: '&cYou''re not allowed to access other players'' ender chests.'
+    permissionExempt: '&c%target%''s inventory is protected.'
+    permissionCrossWorld: '&c%target% is not in your world.'
+    permissionPlayerOnline: '&cYou''re not allowed to open the inventory of online players.'
+    permissionPlayerOffline: '&cYou''re not allowed to open the inventory of offline players.'
+    commandException: '&cAn error occurred. Please check console for details.'
+  info:
+    containerBlocked: 'You are opening a blocked container.'
+    containerBlockedSilent: 'You are opening a blocked container silently.'
+    containerSilent: 'You are opening a container silently.'
+    settingState: '%setting%: %state%'
+    player:
+      noMatches: 'No players found with %target%.'
+      matches: 'Players holding %target%: %detail%'
+    container:
+      noMatches: 'No containers found with %target%.'
+      matches: 'Containers holding %target%: %detail%'
+    on: 'on'
+    off: 'off'
+container:
+  player: '%player%''s Inventory'
+  enderchest: '%player%''s Ender Chest'

plugin/src/main/resources/es_es.yml

@@ -0,0 +1,31 @@
+messages:
+  error:
+    consoleUnsupported: 'No puedes usar este comando desde la consola.'
+    lootNotGenerated: '&c¡Botín no generado! Desactiva &b/silentcontainer&c.'
+    invalidMaterial: '&cMaterial no válido: "%target%"'
+    invalidNumber: '&cNúmero no válido: "%target%"'
+    invalidPlayer: '&cJugador no encontrado'
+    permissionOpenSelf: '&cNo tienes permisos para abrir tu inventario de esa forma.'
+    permissionEnderAll: '&cNo tienes permiso para abrir cofres de ender de otros jugadores.'
+    permissionExempt: '&c El inventario de %target% está protegido.'
+    permissionCrossWorld: '&c%target% no está en tu dimensión.'
+    permissionPlayerOnline: '&cNo estás autorizado para abrir inventarios de jugadores conectados.'
+    permissionPlayerOffline: '&cNo estás autorizado para abrir inventarios de jugadores desconectados.'
+    commandException: '&cSe ha producido un error, lee la consola para mas información.'
+  info:
+    containerBlocked: 'Estás abriendo un contenedor protegido.'
+    containerBlockedSilent: 'Estás abriendo sigilosamente un contenedor protegido.'
+    containerSilent: 'Estás abriendo un contenedor sigilosamente.'
+    settingState: '%setting%: %state%'
+    player:
+      noMatches: 'No se encontraron jugadores con %target%.'
+      matches: 'Jugadores con %target%: %detail%'
+    container:
+      noMatches: 'No se encontraron contenedores con %target%.'
+      matches: 'Contenedores con %target%: %detail%'
+    on: 'activado'
+    off: 'desactivado'
+container:
+  player: 'Inventario de %player%'
+  enderchest: 'Cofre de Ender de %player%'
+  

plugin/src/main/resources/plugin.yml

@@ -0,0 +1,89 @@
+name: OpenInv
+main: com.lishid.openinv.OpenInv
+version: ${project.version}
+author: lishid
+authors: [Jikoo, ShadowRanger]
+description: >
+             This plugin allows you to open a player's inventory as a chest and interact with it in real time.
+api-version: "1.16"
+
+permissions:
+  OpenInv.any.default:
+    description: Permission for AnyContainer to default on prior to toggling.
+    default: false
+  OpenInv.silent.default:
+    description: Permission for SilentContainer to default on prior to toggling.
+    default: false
+  OpenInv.*:
+    description: Permission for all OpenInv features.
+    default: op
+    children:
+      OpenInv.openinv: true
+      OpenInv.openender: true
+      OpenInv.search: true
+      OpenInv.silent: true
+      OpenInv.anychest: true
+      OpenInv.searchenchant: true
+      OpenInv.searchcontainer: true
+      OpenInv.openonline: true
+      OpenInv.openoffline: true
+      OpenInv.spectate: true
+  OpenInv.openinv:
+    default: op
+    children:
+      OpenInv.openonline: true
+      OpenInv.openoffline: true
+  OpenInv.openender:
+    default: op
+    children:
+      OpenInv.openonline: true
+      OpenInv.openoffline: true
+
+commands:
+  openinv:
+    aliases: [oi, inv, open]
+    description: Open a player's inventory
+    permission: OpenInv.openinv
+    usage: |-
+           /<command> [Player] - Open a player's inventory
+  openender:
+    aliases: [oe]
+    description: Opens the enderchest of a player
+    permission: OpenInv.openender
+    usage: |-
+           /<command> [Player] - Open a player's enderchest
+  searchinv:
+    aliases: [si]
+    description: Search and list players having a specific item
+    permission: OpenInv.search
+    usage: |-
+           /<command> <Material> [MinAmount] - MinAmount is optional, the minimum amount required
+  searchender:
+    aliases: [se]
+    permission: OpenInv.search
+    description: Searches and lists players having a specific item in their ender chest
+    usage: |-
+           /<command> <Material> [MinAmount] - MinAmount is optional, the minimum amount required
+  silentcontainer:
+    aliases: [sc, silent, silentchest]
+    description: SilentContainer stops sounds and animations when using containers.
+    permission: OpenInv.silent
+    usage: |-
+           /<command> [check|on|off] - Check, toggle, or set SilentContainer
+  anycontainer:
+    aliases: [ac, anychest]
+    description: AnyContainer allows using blocked containers.
+    permission: OpenInv.anychest
+    usage: |-
+           /<command> [check|on|off] - Check, toggle, or set AnyContainer
+  searchenchant:
+    aliases: [searchenchants]
+    description: Search and list players with a specific enchantment.
+    permission: OpenInv.searchenchant
+    usage: |-
+           /<command> <[Enchantment] [MinLevel]> - Enchantment is the enchantment type, MinLevel is the minimum level. One is optional
+  searchcontainer:
+    aliases: [searchchest]
+    description: Search and list containers with a specific material.
+    permission: OpenInv.searchcontainer
+    usage: /<command> <Material> [ChunkRadius] - ChunkRadius is optional, the length that will be searched for matching items. Default 5

plugin/src/main/resources/pt_br.yml

@@ -0,0 +1,30 @@
+messages:
+  error:
+    consoleUnsupported: 'Voce nao consegue usar esse comando pelo console.'
+    lootNotGenerated: '&cPilhagem nao gerada! Por favor desabilite &b/silentcontainer&c.'
+    invalidMaterial: '&cMaterial invalido: "%target%"'
+    invalidNumber: '&cNumero invalido: "%target%"'
+    invalidPlayer: '&cJogador nao encontrado!'
+    permissionOpenSelf: '&cVoce nao pode abrir seu proprio inventario.'
+    permissionEnderAll: '&cVoce nao tem permissao para abrir baus de ender de outros jogadores.'
+    permissionExempt: '&cO inventario de %target% e protegido.'
+    permissionCrossWorld: '&c%target% nao esta no seu mundo.'
+    permissionPlayerOnline: '&cVoce nao tem permissao para abrir o inventario de jogadores online.'
+    permissionPlayerOffline: '&cVoce nao tem permissao para abrir o inventario de jogadores offline.'
+    commandException: '&cUm erro ocorreu. Por favor cheque o console para detalhes.'
+  info:
+    containerBlocked: 'Voce esta abrindo um recipiente bloqueado.'
+    containerBlockedSilent: 'Voce esta abrindo um recipiente bloqueado silenciosamente.'
+    containerSilent: 'Voce esta abrindo um recipiente silenciosamente.'
+    settingState: '%setting%: %state%'
+    player:
+      noMatches: 'Nenhum jogador encontrado com %target%.'
+      matches: 'Jogadores segurando %target%: %detail%'
+    container:
+      noMatches: 'Nenhum recipiente encontrado com %target%.'
+      matches: 'Recipientes contendo %target%: %detail%'
+    on: 'ligado'
+    off: 'desligado'
+container:
+  player: 'Inventario de %player%'
+  enderchest: 'Bau de Ender de %player%'

plugin/src/main/resources/zh_cn.yml

@@ -0,0 +1,31 @@
+# Translated into Chinese Simplified by Flandre_tw
+messages:
+  error:
+    consoleUnsupported: 该命令无法在后台执行。
+    lootNotGenerated: '&c奖励箱尚未生成 ！ 请关闭 &b/silentcontainer&c。'
+    invalidMaterial: '&c无效的物品 ： "%target%"'
+    invalidNumber: '&c无效的数字 ： "%target%"'
+    invalidPlayer: '&c玩家不存在 ！'
+    permissionOpenSelf: '&c你无法开启自己的物品栏。'
+    permissionEnderAll: '&c你无法开启其他玩家的末影箱。'
+    permissionExempt: '&c%target% 的物品栏受到保护。'
+    permissionCrossWorld: '&c%target% 不在你所在的世界。'
+    permissionPlayerOnline: '&c你无法开启线上玩家的物品栏。'
+    permissionPlayerOffline: '&c你无法开启离线玩家的物品栏。'
+    commandException: '&c发生错误，请查看后台。'
+  info:
+    containerBlocked: 你正在开启受阻挡的储物箱。
+    containerBlockedSilent: 你正在悄悄开启受阻挡的储物箱。
+    containerSilent: 你正在悄悄开启储物箱。
+    settingState: '%setting% ： %state%'
+    player:
+      noMatches: 找不到持有 %target% 的玩家。
+      matches: '找到持有 %target% 的玩家 ： %detail%'
+    container:
+      noMatches: 找不到放有 %target% 的储物箱。
+      matches: '找到放有 %target% 的储物箱 ： %detail%'
+    'true': '开启'
+    'false': '关闭'
+container:
+  player: '%player% 的物品栏'
+  enderchest: '%player% 的末影箱' 

plugin/src/main/resources/zh_tw.yml

@@ -0,0 +1,31 @@
+# Translated into Chinese Traditional by Flandre_tw
+messages:
+  error:
+    consoleUnsupported: 該指令無法在控制台執行。
+    lootNotGenerated: '&c獎勵箱尚未生成 ！ 請關閉 &b/silentcontainer&c。'
+    invalidMaterial: '&c無效的物品 ： "%target%"'
+    invalidNumber: '&c無效的數字 ： "%target%"'
+    invalidPlayer: '&c玩家不存在 ！'
+    permissionOpenSelf: '&c你無法開啟自己的物品欄。'
+    permissionEnderAll: '&c你無法開啟其他玩家的終界箱。'
+    permissionExempt: '&c%target% 的物品欄受到保護。'
+    permissionCrossWorld: '&c%target% 不在你所在的世界。'
+    permissionPlayerOnline: '&c你無法開啟線上玩家的物品欄。'
+    permissionPlayerOffline: '&c你無法開啟離線玩家的物品欄。'
+    commandException: '&c發生錯誤，請查看控制台。'
+  info:
+    containerBlocked: 你正在開啟受阻擋的儲物箱。
+    containerBlockedSilent: 你正在悄悄開啟受阻擋的儲物箱。
+    containerSilent: 你正在悄悄開啟儲物箱。
+    settingState: '%setting% ： %state%'
+    player:
+      noMatches: 找不到持有 %target% 的玩家。
+      matches: '找到持有 %target% 的玩家 ： %detail%'
+    container:
+      noMatches: 找不到放有 %target% 的儲物箱。
+      matches: '找到放有 %target% 的儲物箱 ： %detail%'
+    'true': '開啟'
+    'false': '關閉'
+container:
+  player: '%player% 的物品欄'
+  enderchest: '%player% 的終界箱'

pom.xml

@@ -0,0 +1,146 @@
+<!--
+  ~ Copyright (C) 2011-2021 lishid. All rights reserved.
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, version 3.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.lishid</groupId>
+  <artifactId>openinvparent</artifactId>
+  <name>OpenInv</name>
+  <url>http://dev.bukkit.org/bukkit-plugins/openinv/</url>
+  <version>4.1.9-SNAPSHOT</version>
+
+  <packaging>pom</packaging>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
+  </properties>
+
+  <profiles>
+    <profile>
+      <id>all</id>
+      <modules>
+        <module>api</module>
+        <module>plugin</module>
+        <module>internal/v1_16_R3</module>
+        <module>internal/v1_17_R1</module>
+        <module>assembly</module>
+      </modules>
+    </profile>
+
+    <profile>
+      <id>default</id>
+      <activation>
+        <activeByDefault>true</activeByDefault>
+      </activation>
+      <modules>
+        <module>api</module>
+        <module>plugin</module>
+        <module>assembly</module>
+      </modules>
+    </profile>
+  </profiles>
+
+  <repositories>
+    <repository>
+      <id>spigot-repo</id>
+      <url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
+    </repository>
+  </repositories>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <artifactId>annotations</artifactId>
+        <groupId>org.jetbrains</groupId>
+        <scope>provided</scope>
+        <version>21.0.1</version>
+      </dependency>
+      <dependency>
+        <artifactId>spigot-api</artifactId>
+        <groupId>org.spigotmc</groupId>
+        <scope>provided</scope>
+        <version>1.16.5-R0.1-SNAPSHOT</version>
+      </dependency>
+      <dependency>
+        <artifactId>openinvapi</artifactId>
+        <groupId>com.lishid</groupId>
+        <scope>compile</scope>
+        <version>4.1.9-SNAPSHOT</version>
+      </dependency>
+      <dependency>
+        <artifactId>openinvplugincore</artifactId>
+        <groupId>com.lishid</groupId>
+        <scope>compile</scope>
+        <version>4.1.9-SNAPSHOT</version>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <artifactId>maven-shade-plugin</artifactId>
+          <configuration>
+            <filters>
+              <filter>
+                <!-- Always shade entirety of required modules. -->
+                <artifact>com.lishid:openinv*</artifact>
+                <includes>
+                  <include>**</include>
+                </includes>
+              </filter>
+              <filter>
+                <artifact>*:*</artifact>
+                <!-- Don't warn about file conflicts that'll be clobbered anyway. -->
+                <excludes>
+                  <exclude>META-INF/MANIFEST.MF</exclude>
+                </excludes>
+              </filter>
+            </filters>
+            <minimizeJar>true</minimizeJar>
+          </configuration>
+          <executions>
+            <execution>
+              <phase>package</phase>
+              <goals>
+                <goal>shade</goal>
+              </goals>
+            </execution>
+          </executions>
+          <groupId>org.apache.maven.plugins</groupId>
+          <version>3.2.4</version>
+        </plugin>
+
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <groupId>org.apache.maven.plugins</groupId>
+          <version>3.8.1</version>
+        </plugin>
+
+        <plugin>
+          <artifactId>maven-assembly-plugin</artifactId>
+          <groupId>org.apache.maven.plugins</groupId>
+          <version>3.3.0</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+
+</project>

scripts/generate_changelog.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2021 lishid. All rights reserved.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Note that this script is designed for use in GitHub Actions, and is not
+# particularly robust nor configurable. Run from project parent directory.
+
+# Query GitHub for the username of the given email address.
+# Falls through to the given author name.
+function lookup_email_username() {
+  lookup=$(curl -G --data-urlencode "q=$1 in:email" https://api.github.com/search/users -H 'Accept: application/vnd.github.v3+json' | grep '"login":' | sed -e 's/^.*": "//g' -e 's/",.*$//g')
+
+  if [[ $lookup ]]; then
+    echo -n "@$lookup"
+  else
+    echo "$2"
+  fi
+}
+
+# Get a pretty list of supported Minecraft versions
+function get_minecraft_versions() {
+  readarray -t versions <<< "$(. ./scripts/get_spigot_versions.sh)"
+
+  for version in "${versions[@]}"; do
+    # Append comma if variable is set, then append version
+    minecraft_versions="${minecraft_versions:+${minecraft_versions},}${version%%-R*}"
+  done
+
+  echo "${minecraft_versions}"
+}
+
+previous_tag=$(git describe --tags --abbrev=0 @^)
+
+# Use formatted log to pull authors list
+authors_raw=$(git log --pretty=format:"%ae|%an" "$previous_tag"..@)
+readarray -t authors <<<"$authors_raw"
+
+# Use associative array to map email to author name
+declare -A author_data
+
+for author in "${authors[@]}"; do
+  # Match author email
+  author_email=${author%|*}
+  # Convert to lower case
+  author_email=${author_email,,}
+  # Match author name
+  author_name=${author##*|}
+  if [[ -n ${author_data[$author_email]} ]]; then
+    # Skip emails we already have data for
+    continue
+  fi
+
+  # Fetch and store author GitHub username by email
+  author_data[$author_email]=$(lookup_email_username "$author_email" "$author_name")
+done
+
+# Fetch actual formatted changelog
+changelog=$(git log --pretty=format:"* %s (%h) - %ae" "$previous_tag"..@)
+
+for author_email in "${!author_data[@]}"; do
+  # Ignore case when matching
+  shopt -s nocasematch
+  # Match and replace email
+  changelog=${changelog//$author_email/${author_data[$author_email]}}
+done
+
+minecraft_versions=$(get_minecraft_versions)
+
+printf "## Supported Minecraft versions\n%s\n\n## Changelog\n%s" "${minecraft_versions}" "${changelog}"

scripts/get_spigot_versions.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2021 lishid. All rights reserved.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# TODO FIGURE OUT AND REMOVE WHEN LESS STRESS
+hacky_versions=("1.16.5-R0.1-SNAPSHOT" "1.17-R0.1-SNAPSHOT")
+for hacky_version in "${hacky_versions[@]}"; do
+  echo "$hacky_version"
+done
+
+exit 0
+
+# Note that this script is designed for use in GitHub Actions, and is not
+# particularly robust nor configurable. Run from project parent directory.
+
+# Pull Spigot dependency information from Maven.
+# Since we only care about Spigot versions, only check modules in the folder internal.
+readarray -t modules <<< "$(mvn help:evaluate -Dexpression=project.modules -q -DforceStdout -P all | grep -oP '(?<=<string>)(internal/.*)(?=</string>)')"
+
+for module in "${modules[@]}"; do
+  # Get number of dependencies declared in pom of specified internal module.
+  max_index=$(mvn help:evaluate -Dexpression=project.dependencies -q -DforceStdout -P all -pl "$module" | grep -c "<dependency>")
+
+  for ((i=0; i < max_index; i++)); do
+    # Get artifactId of dependency.
+    artifact_id=$(mvn help:evaluate -Dexpression=project.dependencies["$i"].artifactId -q -DforceStdout -P all -pl "$module")
+
+    # Ensure dependency is Spigot.
+    if [[ "$artifact_id" == spigot ]]; then
+      # Get Spigot version.
+      spigot_version=$(mvn help:evaluate -Dexpression=project.dependencies["$i"].version -q -DforceStdout -P all -pl "$module")
+      versions+=("$spigot_version")
+      echo "$spigot_version"
+      break
+    fi
+  done
+done

scripts/install_spigot_dependencies.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2021 lishid. All rights reserved.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Note that this script is designed for use in GitHub Actions, and is not
+# particularly robust nor configurable. Run from project parent directory.
+
+buildtools_dir=~/buildtools
+buildtools=$buildtools_dir/BuildTools.jar
+
+get_buildtools () {
+  if [[ -d $buildtools_dir && -f $buildtools ]]; then
+    return
+  fi
+
+  mkdir $buildtools_dir
+  wget https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar -O $buildtools
+}
+
+readarray -t versions <<< "$(. ./scripts/get_spigot_versions.sh)"
+echo Found Spigot dependencies: "${versions[@]}"
+
+for version in "${versions[@]}"; do
+  set -e
+  exit_code=0
+  mvn dependency:get -Dartifact=org.spigotmc:spigot:"$version" -q -o || exit_code=$?
+  if [ $exit_code -ne 0 ]; then
+    echo Installing missing Spigot version "$version"
+    revision=${version%%-R*}
+    get_buildtools
+    java -jar $buildtools -rev "$revision"
+  else
+    echo Spigot "$version" is already installed
+  fi
+done

scripts/set_curseforge_env.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2021 lishid. All rights reserved.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Note that this script is designed for use in GitHub Actions, and is not
+# particularly robust nor configurable. Run from project parent directory.
+
+# Parse Spigot dependency information into major Minecraft versions
+function get_curseforge_minecraft_versions() {
+  readarray -t versions <<< "$(. ./scripts/get_spigot_versions.sh)"
+
+  for version in "${versions[@]}"; do
+    # Parse Minecraft major version
+    version="${version%[.-]"${version#*.*[.-]}"}"
+
+    # Skip already listed versions
+    if [[ "$minecraft_versions" =~ "$version"($|,) ]]; then
+      continue
+    fi
+
+    # Append comma if variable is set, then append version
+    minecraft_versions="${minecraft_versions:+${minecraft_versions},}Minecraft ${version}"
+  done
+
+  echo "${minecraft_versions}"
+}
+
+# Modify provided changelog to not break when inserted into yaml file.
+function get_yaml_safe_changelog() {
+  changelog=$1
+  # Since we're using a flow scalar, newlines need to be doubled.
+  echo "${changelog//
+/
+
+}"
+}
+
+minecraft_versions=$(get_curseforge_minecraft_versions)
+echo "CURSEFORGE_MINECRAFT_VERSIONS=$minecraft_versions" >> "$GITHUB_ENV"
+
+changelog=$(get_yaml_safe_changelog "$1")
+printf "CURSEFORGE_CHANGELOG<<EOF\n%s\nEOF\n" "$changelog" >> "$GITHUB_ENV"

scripts/set_release_env.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2021 lishid. All rights reserved.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Note that this script is designed for use in GitHub Actions, and is not
+# particularly robust nor configurable. Run from project parent directory.
+
+# Get a pretty string of the project's name and version
+# Disable SC warning about variable expansion for this function - those are Maven variables.
+# shellcheck disable=SC2016
+function get_versioned_name() {
+  mvn -q -Dexec.executable=echo -Dexec.args='${project.name} ${project.version}' --non-recursive exec:exec
+}
+
+# Set GitHub environmental variables
+echo "VERSIONED_NAME=$(get_versioned_name)" >> "$GITHUB_ENV"
+
+changelog="$(. ./scripts/generate_changelog.sh)"
+printf "GENERATED_CHANGELOG<<EOF\n%s\nEOF\n" "$changelog" >> "$GITHUB_ENV"

scripts/tag_release.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2021 lishid. All rights reserved.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+if [[ ! $1 ]]; then
+  echo "Please provide a version string."
+  return
+fi
+
+version="$1"
+snapshot="${version%.*}.$((${version##*.} + 1))-SNAPSHOT"
+
+mvn versions:set -DnewVersion="$version"
+
+git add .
+git commit -S -m "Bump version to $version for release"
+git tag -s "$version" -m "Release $version"
+
+mvn clean package -am -P all
+
+mvn versions:set -DnewVersion="$snapshot"
+
+git add .
+git commit -S -m "Bump version to $snapshot for development"

src/com/lishid/openinv/OpenInv.java

@@ -1,206 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv;
-
-import java.util.HashMap;
-import java.util.logging.Logger;
-
-import org.bukkit.ChatColor;
-import org.bukkit.configuration.file.FileConfiguration;
-import org.bukkit.entity.Player;
-import org.bukkit.permissions.Permissible;
-import org.bukkit.plugin.PluginManager;
-import org.bukkit.plugin.java.JavaPlugin;
-
-import com.lishid.openinv.commands.*;
-import com.lishid.openinv.internal.IAnySilentChest;
-import com.lishid.openinv.internal.IInventoryAccess;
-import com.lishid.openinv.internal.IPlayerDataManager;
-import com.lishid.openinv.internal.ISpecialEnderChest;
-import com.lishid.openinv.internal.ISpecialPlayerInventory;
-import com.lishid.openinv.internal.InternalAccessor;
-import com.lishid.openinv.utils.UpdateManager;
-
-/**
- * Open other player's inventory
- * 
- * @author lishid
- */
-public class OpenInv extends JavaPlugin {
-    public static final Logger logger = Logger.getLogger("Minecraft.OpenInv");
-
-    public static HashMap<String, ISpecialPlayerInventory> inventories = new HashMap<String, ISpecialPlayerInventory>();
-    public static HashMap<String, ISpecialEnderChest> enderChests = new HashMap<String, ISpecialEnderChest>();
-
-    private UpdateManager updater = new UpdateManager();
-
-    public static OpenInv mainPlugin;
-
-    public static IPlayerDataManager playerLoader;
-    public static IInventoryAccess inventoryAccess;
-    public static IAnySilentChest anySilentChest;
-
-    public void onEnable() {
-        // Get plugin manager
-        PluginManager pm = getServer().getPluginManager();
-
-        // Version check
-        boolean success = InternalAccessor.Initialize(this.getServer());
-
-        if (!success) {
-            OpenInv.log("Your version of CraftBukkit is not supported.");
-            OpenInv.log("Please look for an updated version of OpenInv.");
-            pm.disablePlugin(this);
-            return;
-        }
-
-        playerLoader = InternalAccessor.Instance.newPlayerDataManager();
-        inventoryAccess = InternalAccessor.Instance.newInventoryAccess();
-        anySilentChest = InternalAccessor.Instance.newAnySilentChest();
-
-        mainPlugin = this;
-        FileConfiguration config = getConfig();
-        config.set("CheckForUpdates", config.getBoolean("CheckForUpdates", true));
-        config.set("NotifySilentChest", config.getBoolean("NotifySilentChest", true));
-        config.set("NotifyAnyChest", config.getBoolean("NotifyAnyChest", true));
-        config.set("ItemOpenInvItemID", config.getInt("ItemOpenInvItemID", 280));
-        config.addDefault("ItemOpenInvItemID", 280);
-        config.addDefault("CheckForUpdates", true);
-        config.addDefault("NotifySilentChest", true);
-        config.addDefault("NotifyAnyChest", true);
-        config.options().copyDefaults(true);
-        saveConfig();
-
-        pm.registerEvents(new OpenInvPlayerListener(), this);
-        pm.registerEvents(new OpenInvEntityListener(), this);
-        pm.registerEvents(new OpenInvInventoryListener(), this);
-
-        getCommand("openinv").setExecutor(new OpenInvPluginCommand(this));
-        getCommand("searchinv").setExecutor(new SearchInvPluginCommand());
-        getCommand("toggleopeninv").setExecutor(new ToggleOpenInvPluginCommand());
-        getCommand("silentchest").setExecutor(new SilentChestPluginCommand(this));
-        getCommand("anychest").setExecutor(new AnyChestPluginCommand(this));
-        getCommand("openender").setExecutor(new OpenEnderPluginCommand(this));
-
-        updater.Initialize(this, getFile());
-    }
-
-    public static boolean NotifySilentChest() {
-        return mainPlugin.getConfig().getBoolean("NotifySilentChest", true);
-    }
-
-    public static boolean NotifyAnyChest() {
-        return mainPlugin.getConfig().getBoolean("NotifyAnyChest", true);
-    }
-
-    public static boolean GetCheckForUpdates() {
-        return mainPlugin.getConfig().getBoolean("CheckForUpdates", true);
-    }
-
-    public static boolean GetPlayerItemOpenInvStatus(String name) {
-        return mainPlugin.getConfig().getBoolean("ItemOpenInv." + name.toLowerCase() + ".toggle", false);
-    }
-
-    public static void SetPlayerItemOpenInvStatus(String name, boolean status) {
-        mainPlugin.getConfig().set("ItemOpenInv." + name.toLowerCase() + ".toggle", status);
-        mainPlugin.saveConfig();
-    }
-
-    public static boolean GetPlayerSilentChestStatus(String name) {
-        return mainPlugin.getConfig().getBoolean("SilentChest." + name.toLowerCase() + ".toggle", false);
-    }
-
-    public static void SetPlayerSilentChestStatus(String name, boolean status) {
-        mainPlugin.getConfig().set("SilentChest." + name.toLowerCase() + ".toggle", status);
-        mainPlugin.saveConfig();
-    }
-
-    public static boolean GetPlayerAnyChestStatus(String name) {
-        return mainPlugin.getConfig().getBoolean("AnyChest." + name.toLowerCase() + ".toggle", true);
-    }
-
-    public static void SetPlayerAnyChestStatus(String name, boolean status) {
-        mainPlugin.getConfig().set("AnyChest." + name.toLowerCase() + ".toggle", status);
-        mainPlugin.saveConfig();
-    }
-
-    public static int GetItemOpenInvItem() {
-        if (mainPlugin.getConfig().get("ItemOpenInvItemID") == null) {
-            SaveToConfig("ItemOpenInvItemID", 280);
-        }
-        return mainPlugin.getConfig().getInt("ItemOpenInvItemID", 280);
-    }
-
-    public static Object GetFromConfig(String data, Object defaultValue) {
-        Object val = mainPlugin.getConfig().get(data);
-        if (val == null) {
-            mainPlugin.getConfig().set(data, defaultValue);
-            return defaultValue;
-        }
-        else {
-            return val;
-        }
-    }
-
-    public static void SaveToConfig(String data, Object value) {
-        mainPlugin.getConfig().set(data, value);
-        mainPlugin.saveConfig();
-    }
-
-    /**
-     * Log an information
-     */
-    public static void log(String text) {
-        logger.info("[OpenInv] " + text);
-    }
-
-    /**
-     * Log an error
-     */
-    public static void log(Throwable e) {
-        logger.severe("[OpenInv] " + e.toString());
-        e.printStackTrace();
-    }
-
-    public static void ShowHelp(Player player) {
-        player.sendMessage(ChatColor.GREEN + "/openinv <Player> - Open a player's inventory");
-        player.sendMessage(ChatColor.GREEN + "   (aliases: oi, inv, open)");
-        player.sendMessage(ChatColor.GREEN + "/openender <Player> - Open a player's enderchest");
-        player.sendMessage(ChatColor.GREEN + "   (aliases: oe, enderchest)");
-        player.sendMessage(ChatColor.GREEN + "/toggleopeninv - Toggle item openinv function");
-        player.sendMessage(ChatColor.GREEN + "   (aliases: toi, toggleoi, toggleinv)");
-        player.sendMessage(ChatColor.GREEN + "/searchinv <Item> [MinAmount] - ");
-        player.sendMessage(ChatColor.GREEN + "   Search and list players having a specific item.");
-        player.sendMessage(ChatColor.GREEN + "   (aliases: si, search)");
-        player.sendMessage(ChatColor.GREEN + "/anychest - Toggle anychest function");
-        player.sendMessage(ChatColor.GREEN + "   (aliases: ac)");
-        player.sendMessage(ChatColor.GREEN + "/silentchest - Toggle silent chest function");
-        player.sendMessage(ChatColor.GREEN + "   (aliases: sc, silent)");
-    }
-
-    public static boolean hasPermission(Permissible player, String permission) {
-        String[] parts = permission.split("\\.");
-        String perm = "";
-        for (int i = 0; i < parts.length; i++) {
-            if (player.hasPermission(perm + "*")) {
-                return true;
-            }
-            perm += parts[i] + ".";
-        }
-        return player.hasPermission(permission);
-    }
-}

src/com/lishid/openinv/OpenInvEntityListener.java

@@ -1,52 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv;
-
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.Player;
-import org.bukkit.event.entity.EntityDamageByEntityEvent;
-import org.bukkit.event.entity.EntityDamageEvent;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-
-public class OpenInvEntityListener implements Listener {
-    @EventHandler(priority = EventPriority.LOWEST)
-    public void onEntityDamage(EntityDamageEvent event) {
-        if (event instanceof EntityDamageByEntityEvent) {
-            EntityDamageByEntityEvent evt = (EntityDamageByEntityEvent) event;
-            Entity attacker = evt.getDamager();
-            Entity defender = evt.getEntity();
-
-            if (!(attacker instanceof Player) || !(defender instanceof Player)) {
-                return;
-            }
-
-            Player player = (Player) attacker;
-
-            if (!(player.getItemInHand().getType().getId() == OpenInv.GetItemOpenInvItem()) || (!OpenInv.GetPlayerItemOpenInvStatus(player.getName())) || !OpenInv.hasPermission(player, "OpenInv.openinv")) {
-                return;
-            }
-
-            Player target = (Player) defender;
-            player.performCommand("openinv " + target.getName());
-
-            evt.setDamage(0);
-            evt.setCancelled(true);
-        }
-    }
-}

src/com/lishid/openinv/OpenInvInventoryListener.java

@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv;
-
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.inventory.InventoryClickEvent;
-
-public class OpenInvInventoryListener implements Listener {
-    @EventHandler(priority = EventPriority.NORMAL)
-    public void onInventoryClick(InventoryClickEvent event) {
-        // If this is the top inventory
-        // if (event.getView().convertSlot(event.getRawSlot()) == event.getRawSlot())
-        // {
-        if (!OpenInv.inventoryAccess.check(event.getInventory(), event.getWhoClicked())) {
-            event.setCancelled(true);
-        }
-        // }
-    }
-}

src/com/lishid/openinv/OpenInvPlayerListener.java

@@ -1,133 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv;
-
-import org.bukkit.ChatColor;
-import org.bukkit.block.Chest;
-import org.bukkit.block.Sign;
-import org.bukkit.entity.Player;
-import org.bukkit.event.Event.Result;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.block.Action;
-import org.bukkit.event.player.PlayerInteractEvent;
-import org.bukkit.event.player.PlayerJoinEvent;
-import org.bukkit.event.player.PlayerQuitEvent;
-
-import com.lishid.openinv.internal.ISpecialEnderChest;
-import com.lishid.openinv.internal.ISpecialPlayerInventory;
-
-public class OpenInvPlayerListener implements Listener {
-    @EventHandler(priority = EventPriority.LOWEST)
-    public void onPlayerJoin(PlayerJoinEvent event) {
-        ISpecialPlayerInventory inventory = OpenInv.inventories.get(event.getPlayer().getName().toLowerCase());
-
-        if (inventory != null) {
-            inventory.PlayerGoOnline(event.getPlayer());
-        }
-
-        ISpecialEnderChest chest = OpenInv.enderChests.get(event.getPlayer().getName().toLowerCase());
-
-        if (chest != null) {
-            chest.PlayerGoOnline(event.getPlayer());
-        }
-    }
-
-    @EventHandler(priority = EventPriority.MONITOR)
-    public void onPlayerQuit(PlayerQuitEvent event) {
-        ISpecialPlayerInventory inventory = OpenInv.inventories.get(event.getPlayer().getName().toLowerCase());
-        if (inventory != null) {
-            inventory.PlayerGoOffline();
-        }
-        ISpecialEnderChest chest = OpenInv.enderChests.get(event.getPlayer().getName().toLowerCase());
-        if (chest != null) {
-            chest.PlayerGoOffline();
-        }
-    }
-
-    @EventHandler(priority = EventPriority.MONITOR)
-    public void onPlayerInteract(PlayerInteractEvent event) {
-        Player player = event.getPlayer();
-
-        if (event.getPlayer().isSneaking()) {
-            return;
-        }
-
-        if (event.getAction() == Action.RIGHT_CLICK_BLOCK && event.useInteractedBlock() == Result.DENY) {
-            return;
-        }
-
-        if (event.getAction() == Action.RIGHT_CLICK_BLOCK && event.getClickedBlock().getType() == org.bukkit.Material.ENDER_CHEST) {
-            if (OpenInv.hasPermission(player, Permissions.PERM_SILENT) && OpenInv.GetPlayerSilentChestStatus(player.getName())) {
-                event.setCancelled(true);
-                player.openInventory(player.getEnderChest());
-            }
-        }
-
-        if (event.getAction() == Action.RIGHT_CLICK_BLOCK && event.getClickedBlock().getState() instanceof Chest) {
-            boolean silentchest = false;
-            boolean anychest = false;
-            int x = event.getClickedBlock().getX();
-            int y = event.getClickedBlock().getY();
-            int z = event.getClickedBlock().getZ();
-
-            if (OpenInv.hasPermission(player, Permissions.PERM_SILENT) && OpenInv.GetPlayerSilentChestStatus(player.getName())) {
-                silentchest = true;
-            }
-
-            if (OpenInv.hasPermission(player, Permissions.PERM_ANYCHEST) && OpenInv.GetPlayerAnyChestStatus(player.getName())) {
-                try {
-                    anychest = OpenInv.anySilentChest.IsAnyChestNeeded(player, x, y, z);
-                }
-                catch (Exception e) {
-                    player.sendMessage(ChatColor.RED + "Error while executing openinv. Unsupported CraftBukkit.");
-                    e.printStackTrace();
-                }
-            }
-
-            // If the anychest or silentchest is active
-            if (anychest || silentchest) {
-                if (!OpenInv.anySilentChest.ActivateChest(player, anychest, silentchest, x, y, z)) {
-                    event.setCancelled(true);
-                }
-            }
-        }
-
-        if (event.getAction() == Action.RIGHT_CLICK_BLOCK && event.getClickedBlock().getState() instanceof Sign) {
-            try {
-                Sign sign = ((Sign) event.getClickedBlock().getState());
-                if (OpenInv.hasPermission(player, Permissions.PERM_OPENINV) && sign.getLine(0).equalsIgnoreCase("[openinv]")) {
-                    String text = sign.getLine(1).trim() + sign.getLine(2).trim() + sign.getLine(3).trim();
-                    player.performCommand("openinv " + text);
-                }
-            }
-            catch (Exception ex) {
-                player.sendMessage("Internal Error.");
-                ex.printStackTrace();
-            }
-        }
-
-        if (event.getAction() == Action.RIGHT_CLICK_AIR || event.getAction() == Action.RIGHT_CLICK_BLOCK) {
-            if (!(player.getItemInHand().getType().getId() == OpenInv.GetItemOpenInvItem()) || (!OpenInv.GetPlayerItemOpenInvStatus(player.getName())) || !OpenInv.hasPermission(player, Permissions.PERM_OPENINV)) {
-                return;
-            }
-
-            player.performCommand("openinv");
-        }
-    }
-}

src/com/lishid/openinv/Permissions.java

@@ -1,16 +0,0 @@
-package com.lishid.openinv;
-
-public class Permissions {
-    public static final String PERM_OPENINV = "OpenInv.openinv";
-    public static final String PERM_OVERRIDE = "OpenInv.override";
-    public static final String PERM_EXEMPT = "OpenInv.exempt";
-    public static final String PERM_CROSSWORLD = "OpenInv.crossworld";
-    public static final String PERM_SILENT = "OpenInv.silent";
-    public static final String PERM_ANYCHEST = "OpenInv.anychest";
-    public static final String PERM_ENDERCHEST = "OpenInv.openender";
-    public static final String PERM_ENDERCHEST_ALL = "OpenInv.openenderall";
-    public static final String PERM_SEARCH = "OpenInv.search";
-    public static final String PERM_EDITINV = "OpenInv.editinv";
-    public static final String PERM_EDITENDER = "OpenInv.editender";
-    public static final String PERM_OPENSELF = "OpenInv.openself";
-}

src/com/lishid/openinv/commands/AnyChestPluginCommand.java

@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.commands;
-
-import org.bukkit.ChatColor;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandExecutor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.Permissions;
-
-public class AnyChestPluginCommand implements CommandExecutor {
-    public AnyChestPluginCommand(OpenInv plugin) {
-
-    }
-
-    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.RED + "You can't use this from the console.");
-            return true;
-        }
-        if (!OpenInv.hasPermission(sender, Permissions.PERM_ANYCHEST)) {
-            sender.sendMessage(ChatColor.RED + "You do not have permission to use anychest.");
-            return true;
-        }
-
-        if (args.length > 0) {
-            if (args[0].equalsIgnoreCase("check")) {
-                if (OpenInv.GetPlayerAnyChestStatus(sender.getName()))
-                    sender.sendMessage("AnyChest is ON.");
-                else
-                    sender.sendMessage("AnyChest is OFF.");
-            }
-        }
-
-        OpenInv.SetPlayerAnyChestStatus(sender.getName(), !OpenInv.GetPlayerAnyChestStatus(sender.getName()));
-        sender.sendMessage("AnyChest is now " + (OpenInv.GetPlayerAnyChestStatus(sender.getName()) ? "On" : "Off") + ".");
-
-        return true;
-    }
-}

src/com/lishid/openinv/commands/OpenEnderPluginCommand.java

@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.commands;
-
-import java.util.HashMap;
-import java.util.UUID;
-
-import org.bukkit.Bukkit;
-import org.bukkit.ChatColor;
-import org.bukkit.OfflinePlayer;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandExecutor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.scheduler.BukkitRunnable;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.Permissions;
-import com.lishid.openinv.internal.ISpecialEnderChest;
-import com.lishid.openinv.internal.InternalAccessor;
-
-public class OpenEnderPluginCommand implements CommandExecutor {
-    private final OpenInv plugin;
-    public static HashMap<Player, String> openEnderHistory = new HashMap<Player, String>();
-
-    public OpenEnderPluginCommand(OpenInv plugin) {
-        this.plugin = plugin;
-    }
-
-    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.RED + "You can't use this from the console.");
-            return true;
-        }
-
-        if (!OpenInv.hasPermission(sender, Permissions.PERM_ENDERCHEST)) {
-            sender.sendMessage(ChatColor.RED + "You do not have permission to access player enderchest");
-            return true;
-        }
-
-        if (args.length > 0 && args[0].equalsIgnoreCase("?")) {
-            OpenInv.ShowHelp((Player) sender);
-            return true;
-        }
-
-        final Player player = (Player) sender;
-
-        // History management
-        String history = openEnderHistory.get(player);
-
-        if (history == null || history == "") {
-            history = player.getName();
-            openEnderHistory.put(player, history);
-        }
-
-        final String name;
-
-        // Read from history if target is not named
-        if (args.length < 1) {
-            name = history;
-        }
-        else {
-            name = args[0];
-        }
-
-        sender.sendMessage(ChatColor.GREEN + "Starting inventory lookup.");
-        final UUID senderID = player.getUniqueId();
-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                final OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(name);
-                if (Bukkit.getPlayer(senderID) == null) {
-                    return;
-                }
-                if (offlinePlayer == null || !offlinePlayer.hasPlayedBefore()) {
-                    player.sendMessage(ChatColor.RED + "Player not found!");
-                    return;
-                }
-                new BukkitRunnable() {
-                    @Override
-                    public void run() {
-                        if (Bukkit.getPlayer(senderID) == null) {
-                            return;
-                        }
-                        openInventory(player, offlinePlayer.getUniqueId());
-                    }
-                }.runTask(plugin);
-            }
-        }.runTaskAsynchronously(plugin);
-
-        return true;
-    }
-
-    private void openInventory(Player player, UUID uuid) {
-
-        Player target = this.plugin.getServer().getPlayer(uuid);
-
-        if (target == null) {
-            // Try loading the player's data
-            target = OpenInv.playerLoader.loadPlayer(uuid);
-
-            if (target == null) {
-                player.sendMessage(ChatColor.RED + "Player not found!");
-                return;
-            }
-        }
-
-
-        if (target != player && !OpenInv.hasPermission(player, Permissions.PERM_ENDERCHEST_ALL)) {
-            player.sendMessage(ChatColor.RED + "You do not have permission to access other player's enderchest");
-            return;
-        }
-
-        // Record the target
-        openEnderHistory.put(player, target.getName());
-
-        // Create the inventory
-        ISpecialEnderChest chest = OpenInv.enderChests.get(target.getName().toLowerCase());
-        if (chest == null) {
-            chest = InternalAccessor.Instance.newSpecialEnderChest(target, !target.isOnline());
-        }
-
-        // Open the inventory
-        player.openInventory(chest.getBukkitInventory());
-    }
-}

src/com/lishid/openinv/commands/OpenInvPluginCommand.java

@@ -1,151 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.commands;
-
-import java.util.HashMap;
-import java.util.UUID;
-
-import org.bukkit.Bukkit;
-import org.bukkit.ChatColor;
-import org.bukkit.OfflinePlayer;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandExecutor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.scheduler.BukkitRunnable;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.Permissions;
-import com.lishid.openinv.internal.ISpecialPlayerInventory;
-import com.lishid.openinv.internal.InternalAccessor;
-
-public class OpenInvPluginCommand implements CommandExecutor {
-    private final OpenInv plugin;
-    public static HashMap<Player, String> openInvHistory = new HashMap<Player, String>();
-
-    public OpenInvPluginCommand(OpenInv plugin) {
-        this.plugin = plugin;
-    }
-
-    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.RED + "You can't use this from the console.");
-            return true;
-        }
-        if (!OpenInv.hasPermission(sender, Permissions.PERM_OPENINV)) {
-            sender.sendMessage(ChatColor.RED + "You do not have permission to access player inventories");
-            return true;
-        }
-
-        if (args.length > 0 && args[0].equalsIgnoreCase("?")) {
-            OpenInv.ShowHelp((Player) sender);
-            return true;
-        }
-
-        final Player player = (Player) sender;
-
-        // History management
-        String history = openInvHistory.get(player);
-
-        if (history == null || history == "") {
-            history = player.getName();
-            openInvHistory.put(player, history);
-        }
-
-        final String name;
-
-        // Read from history if target is not named
-        if (args.length < 1) {
-            name = history;
-        }
-        else {
-            name = args[0];
-        }
-
-        sender.sendMessage(ChatColor.GREEN + "Starting inventory lookup.");
-        final UUID senderID = player.getUniqueId();
-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                final OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(name);
-                if (Bukkit.getPlayer(senderID) == null) {
-                    return;
-                }
-                if (offlinePlayer == null || !offlinePlayer.hasPlayedBefore()) {
-                    player.sendMessage(ChatColor.RED + "Player not found!");
-                    return;
-                }
-                new BukkitRunnable() {
-                    @Override
-                    public void run() {
-                        if (Bukkit.getPlayer(senderID) == null) {
-                            return;
-                        }
-                        openInventory(player, offlinePlayer.getUniqueId());
-                    }
-                }.runTask(plugin);
-            }
-        }.runTaskAsynchronously(plugin);
-
-        return true;
-    }
-
-    private void openInventory(Player player, UUID uuid) {
-
-        Player target = this.plugin.getServer().getPlayer(uuid);
-
-        if (target == null) {
-            // Try loading the player's data
-            target = OpenInv.playerLoader.loadPlayer(uuid);
-
-            if (target == null) {
-                player.sendMessage(ChatColor.RED + "Player not found!");
-                return;
-            }
-        }
-
-        // Permissions checks
-        if (!OpenInv.hasPermission(player, Permissions.PERM_OVERRIDE) && OpenInv.hasPermission(target, Permissions.PERM_EXEMPT)) {
-            player.sendMessage(ChatColor.RED + target.getDisplayName() + "'s inventory is protected!");
-            return;
-        }
-
-        // Crosswork check
-        if ((!OpenInv.hasPermission(player, Permissions.PERM_CROSSWORLD) && !OpenInv.hasPermission(player, Permissions.PERM_OVERRIDE)) && target.getWorld() != player.getWorld()) {
-            player.sendMessage(ChatColor.RED + target.getDisplayName() + " is not in your world!");
-            return;
-        }
-
-        // Self-open check
-        if (!OpenInv.hasPermission(player, Permissions.PERM_OPENSELF) && target.equals(player)) {
-            player.sendMessage(ChatColor.RED + "You're not allowed to openinv yourself.");
-            return;
-        }
-
-        // Record the target
-        openInvHistory.put(player, target.getName());
-
-        // Create the inventory
-        ISpecialPlayerInventory inv = OpenInv.inventories.get(target.getName().toLowerCase());
-        if (inv == null) {
-            inv = InternalAccessor.Instance.newSpecialPlayerInventory(target, !target.isOnline());
-        }
-
-        // Open the inventory
-        player.openInventory(inv.getBukkitInventory());
-    }
-}

src/com/lishid/openinv/commands/SearchInvPluginCommand.java

@@ -1,77 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.commands;
-
-import org.bukkit.Bukkit;
-import org.bukkit.ChatColor;
-import org.bukkit.Material;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandExecutor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.Permissions;
-
-public class SearchInvPluginCommand implements CommandExecutor {
-    public SearchInvPluginCommand() {
-
-    }
-
-    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
-        if (sender instanceof Player) {
-            if (!OpenInv.hasPermission(sender, Permissions.PERM_SEARCH)) {
-                sender.sendMessage(ChatColor.RED + "You do not have permission to access player inventories");
-                return true;
-            }
-        }
-
-        String PlayerList = "";
-
-        Material material = null;
-        int count = 1;
-
-        if (args.length >= 1) {
-            String[] gData = null;
-            gData = args[0].split(":");
-            material = Material.matchMaterial(gData[0]);
-        }
-        if (args.length >= 2) {
-            try {
-                count = Integer.parseInt(args[1]);
-            }
-            catch (NumberFormatException ex) {
-                sender.sendMessage(ChatColor.RED + "'" + args[1] + "' is not a number!");
-                return false;
-            }
-        }
-
-        if (material == null) {
-            sender.sendMessage(ChatColor.RED + "Unknown item");
-            return false;
-        }
-
-        for (Player templayer : Bukkit.getServer().getOnlinePlayers()) {
-            if (templayer.getInventory().contains(material, count)) {
-                PlayerList += templayer.getName() + "  ";
-            }
-        }
-
-        sender.sendMessage("Players with the item " + material.toString() + ":  " + PlayerList);
-        return true;
-    }
-}

src/com/lishid/openinv/commands/SilentChestPluginCommand.java

@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.commands;
-
-import org.bukkit.ChatColor;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandExecutor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.Permissions;
-
-public class SilentChestPluginCommand implements CommandExecutor {
-    public SilentChestPluginCommand(OpenInv plugin) {
-
-    }
-
-    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.RED + "You can't use this from the console.");
-            return true;
-        }
-        if (!OpenInv.hasPermission(sender, Permissions.PERM_SILENT)) {
-            sender.sendMessage(ChatColor.RED + "You do not have permission to use silent chest.");
-            return true;
-        }
-
-        if (args.length > 0) {
-            if (args[0].equalsIgnoreCase("check")) {
-                if (OpenInv.GetPlayerSilentChestStatus(sender.getName()))
-                    sender.sendMessage("SilentChest is ON.");
-                else
-                    sender.sendMessage("SilentChest is OFF.");
-            }
-        }
-
-        OpenInv.SetPlayerSilentChestStatus(sender.getName(), !OpenInv.GetPlayerSilentChestStatus(sender.getName()));
-        sender.sendMessage("SilentChest is now " + (OpenInv.GetPlayerSilentChestStatus(sender.getName()) ? "On" : "Off") + ".");
-
-        return true;
-    }
-}

src/com/lishid/openinv/commands/ToggleOpenInvPluginCommand.java

@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.commands;
-
-import org.bukkit.ChatColor;
-import org.bukkit.Material;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandExecutor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.Permissions;
-
-public class ToggleOpenInvPluginCommand implements CommandExecutor {
-
-    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
-        if (!(sender instanceof Player)) {
-            sender.sendMessage(ChatColor.RED + "You can't use this from the console.");
-            return true;
-        }
-        if (!OpenInv.hasPermission(sender, Permissions.PERM_OPENINV)) {
-            sender.sendMessage(ChatColor.RED + "You do not have permission to access player inventories");
-            return true;
-        }
-
-        Player player = (Player) sender;
-        if (args.length > 0) {
-            if (args[0].equalsIgnoreCase("check")) {
-                if (OpenInv.GetPlayerItemOpenInvStatus(player.getName()))
-                    player.sendMessage("OpenInv with " + Material.getMaterial(OpenInv.GetItemOpenInvItem()).toString() + " is ON.");
-                else
-                    player.sendMessage("OpenInv with " + Material.getMaterial(OpenInv.GetItemOpenInvItem()).toString() + " is OFF.");
-            }
-        }
-        if (OpenInv.GetPlayerItemOpenInvStatus(player.getName())) {
-            OpenInv.SetPlayerItemOpenInvStatus(player.getName(), false);
-            player.sendMessage("OpenInv with " + Material.getMaterial(OpenInv.GetItemOpenInvItem()).toString() + " is OFF.");
-        }
-        else {
-            OpenInv.SetPlayerItemOpenInvStatus(player.getName(), true);
-            player.sendMessage("OpenInv with " + Material.getMaterial(OpenInv.GetItemOpenInvItem()).toString() + " is ON.");
-        }
-        return true;
-    }
-}

src/com/lishid/openinv/internal/IAnySilentChest.java

@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal;
-
-import org.bukkit.entity.Player;
-
-public interface IAnySilentChest {
-    public boolean IsAnyChestNeeded(Player p, int x, int y, int z);
-
-    public boolean ActivateChest(Player p, boolean anychest, boolean silentchest, int x, int y, int z);
-}

src/com/lishid/openinv/internal/ISpecialEnderChest.java

@@ -1,31 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal;
-
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.Inventory;
-
-public interface ISpecialEnderChest {
-    public Inventory getBukkitInventory();
-
-    public void InventoryRemovalCheck();
-
-    public void PlayerGoOnline(Player p);
-
-    public void PlayerGoOffline();
-
-}

src/com/lishid/openinv/internal/ISpecialPlayerInventory.java

@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal;
-
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.Inventory;
-
-public interface ISpecialPlayerInventory {
-    public Inventory getBukkitInventory();
-
-    public void InventoryRemovalCheck();
-
-    public void PlayerGoOnline(Player p);
-
-    public void PlayerGoOffline();
-}

src/com/lishid/openinv/internal/InternalAccessor.java

@@ -1,105 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal;
-
-import org.bukkit.Server;
-import org.bukkit.entity.Player;
-
-import com.lishid.openinv.OpenInv;
-
-public class InternalAccessor {
-    public static InternalAccessor Instance;
-    private String version;
-
-    /*
-     * Returns false if version not supported
-     */
-    public static boolean Initialize(Server server) {
-        Instance = new InternalAccessor();
-        String packageName = server.getClass().getPackage().getName();
-        Instance.version = packageName.substring(packageName.lastIndexOf('.') + 1);
-
-        try {
-            Class.forName("com.lishid.openinv.internal." + Instance.version + ".AnySilentChest");
-            return true;
-        }
-        catch (Exception e) {
-            return false;
-        }
-    }
-
-    public void PrintError() {
-        OpenInv.log("OpenInv encountered an error with the CraftBukkit version \"" + Instance.version + "\". Please look for an updated version of OpenInv.");
-    }
-
-    public IPlayerDataManager newPlayerDataManager() {
-        return (IPlayerDataManager) createObject(IPlayerDataManager.class, "PlayerDataManager");
-    }
-
-    public IInventoryAccess newInventoryAccess() {
-        return (IInventoryAccess) createObject(IInventoryAccess.class, "InventoryAccess");
-    }
-
-    public IAnySilentChest newAnySilentChest() {
-        return (IAnySilentChest) createObject(IAnySilentChest.class, "AnySilentChest");
-    }
-
-    public ISpecialPlayerInventory newSpecialPlayerInventory(Player player, boolean offline) {
-        try {
-            Class<?> internalClass = Class.forName("com.lishid.openinv.internal." + version + ".SpecialPlayerInventory");
-            if (ISpecialPlayerInventory.class.isAssignableFrom(internalClass)) {
-                return (ISpecialPlayerInventory) internalClass.getConstructor(Player.class, Boolean.class).newInstance(player, offline);
-            }
-        }
-        catch (Exception e) {
-            PrintError();
-            OpenInv.log(e);
-        }
-
-        return null;
-    }
-
-    public ISpecialEnderChest newSpecialEnderChest(Player player, boolean offline) {
-        try {
-            Class<?> internalClass = Class.forName("com.lishid.openinv.internal." + version + ".SpecialEnderChest");
-            if (ISpecialEnderChest.class.isAssignableFrom(internalClass)) {
-                return (ISpecialEnderChest) internalClass.getConstructor(Player.class, Boolean.class).newInstance(player, offline);
-            }
-        }
-        catch (Exception e) {
-            PrintError();
-            OpenInv.log(e);
-        }
-
-        return null;
-    }
-
-    private Object createObject(Class<? extends Object> assignableClass, String className) {
-        try {
-            Class<?> internalClass = Class.forName("com.lishid.openinv.internal." + version + "." + className);
-            if (assignableClass.isAssignableFrom(internalClass)) {
-                return internalClass.getConstructor().newInstance();
-            }
-        }
-        catch (Exception e) {
-            PrintError();
-            OpenInv.log(e);
-        }
-
-        return null;
-    }
-}

src/com/lishid/openinv/internal/v1_8_R1/AnySilentChest.java

@@ -1,119 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal.v1_8_R1;
-
-import org.bukkit.ChatColor;
-import org.bukkit.entity.Player;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.internal.IAnySilentChest;
-
-
-
-
-
-
-//Volatile
-import net.minecraft.server.v1_8_R1.*;
-
-import org.bukkit.craftbukkit.v1_8_R1.entity.*;
-
-public class AnySilentChest implements IAnySilentChest {
-    public boolean IsAnyChestNeeded(Player p, int x, int y, int z) {
-        // FOR REFERENCE, LOOK AT net.minecraft.server.BlockChest
-        EntityPlayer player = ((CraftPlayer) p).getHandle();
-        World world = player.world;
-        // If block on top
-        if (world.getType(new BlockPosition(x, y + 1, z)).getBlock().c())
-            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()))
-            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()))
-            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()))
-            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()))
-            return true;
-
-        return false;
-    }
-
-    public boolean ActivateChest(Player p, boolean anychest, boolean silentchest, int x, int y, int z) {
-        EntityPlayer player = ((CraftPlayer) p).getHandle();
-        World world = player.world;
-        Object chest = (TileEntityChest) world.getTileEntity(new BlockPosition(x, y, z));
-        if (chest == null)
-            return true;
-
-        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())
-                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()))
-                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()))
-                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()))
-                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()))
-                return true;
-        }
-
-        if (Block.getId(world.getType(new BlockPosition(x - 1, y, z)).getBlock()) == id)
-            chest = new InventoryLargeChest("Large chest", (TileEntityChest) world.getTileEntity(new BlockPosition(x - 1, y, z)), (ITileInventory) chest);
-        if (Block.getId(world.getType(new BlockPosition(x + 1, y, z)).getBlock()) == id)
-            chest = new InventoryLargeChest("Large chest", (ITileInventory) chest, (TileEntityChest) world.getTileEntity(new BlockPosition(x + 1, y, z)));
-        if (Block.getId(world.getType(new BlockPosition(x, y, z - 1)).getBlock()) == id)
-            chest = new InventoryLargeChest("Large chest", (TileEntityChest) world.getTileEntity(new BlockPosition(x, y, z - 1)), (ITileInventory) chest);
-        if (Block.getId(world.getType(new BlockPosition(x, y, z + 1)).getBlock()) == id)
-            chest = new InventoryLargeChest("Large chest", (ITileInventory) chest, (TileEntityChest) world.getTileEntity(new BlockPosition(x, y, z + 1)));
-
-        boolean returnValue = true;
-        if (!silentchest) {
-            player.openContainer((IInventory) chest);
-        }
-        else {
-            try {
-                SilentContainerChest silentContainerChest = new SilentContainerChest(player.inventory, ((IInventory) chest), player);
-                int windowId = player.nextContainerCounter();
-                player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(windowId, "minecraft:chest", ((IInventory) chest).getScoreboardDisplayName(), ((IInventory) chest).getSize()));
-                player.activeContainer = silentContainerChest;
-                player.activeContainer.windowId = windowId;
-                player.activeContainer.addSlotListener(player);
-                if (OpenInv.NotifySilentChest()) {
-                    p.sendMessage("You are opening a chest silently.");
-                }
-                returnValue = false;
-            }
-            catch (Exception e) {
-                e.printStackTrace();
-                p.sendMessage(ChatColor.RED + "Error while sending silent chest.");
-            }
-        }
-
-        if (anychest && OpenInv.NotifyAnyChest()) {
-            p.sendMessage("You are opening a blocked chest.");
-        }
-
-        return returnValue;
-    }
-}

src/com/lishid/openinv/internal/v1_8_R1/InventoryAccess.java

@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal.v1_8_R1;
-
-import java.lang.reflect.Field;
-
-import org.bukkit.entity.HumanEntity;
-import org.bukkit.inventory.Inventory;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.Permissions;
-import com.lishid.openinv.internal.IInventoryAccess;
-
-//Volatile
-import net.minecraft.server.v1_8_R1.*;
-import org.bukkit.craftbukkit.v1_8_R1.inventory.*;
-
-public class InventoryAccess implements IInventoryAccess {
-    public boolean check(Inventory inventory, HumanEntity player) {
-        IInventory inv = grabInventory(inventory);
-        
-        if (inv instanceof SpecialPlayerInventory) {
-            if (!OpenInv.hasPermission(player, Permissions.PERM_EDITINV)) {
-                return false;
-            }
-        }
-
-        else if (inv instanceof SpecialEnderChest) {
-            if (!OpenInv.hasPermission(player, Permissions.PERM_EDITENDER)) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-    
-    private IInventory grabInventory(Inventory inventory) {
-        if(inventory instanceof CraftInventory) {
-            return ((CraftInventory) inventory).getInventory();
-        }
-        
-        //Use reflection to find the iiventory
-        Class<? extends Inventory> clazz = inventory.getClass();
-        IInventory result = null;
-        for(Field f : clazz.getDeclaredFields()) {
-            f.setAccessible(true);
-            if(IInventory.class.isAssignableFrom(f.getDeclaringClass())) {
-                try {
-                    result = (IInventory) f.get(inventory);
-                }
-                catch (Exception e) {
-                    OpenInv.log(e);
-                }
-            }
-        }
-        return result;
-    }
-}

src/com/lishid/openinv/internal/v1_8_R1/PlayerDataManager.java

@@ -1,129 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal.v1_8_R1;
-
-import java.io.File;
-import java.util.UUID;
-
-import org.bukkit.Bukkit;
-import org.bukkit.OfflinePlayer;
-import org.bukkit.entity.Player;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.internal.IPlayerDataManager;
-import com.mojang.authlib.GameProfile;
-
-//Volatile
-import net.minecraft.server.v1_8_R1.*;
-
-import org.bukkit.craftbukkit.v1_8_R1.*;
-
-public class PlayerDataManager implements IPlayerDataManager {
-    public Player loadPlayer(String name) {
-        try {
-            UUID uuid = matchUser(name);
-            if (uuid == null) {
-                return null;
-            }
-
-            // Default player folder
-            File playerfolder = new File(Bukkit.getWorlds().get(0).getWorldFolder(), "playerdata");
-            if (!playerfolder.exists()) {
-                return null;
-            }
-
-            OfflinePlayer player = Bukkit.getOfflinePlayer(uuid);
-            if (player == null) {
-                return null;
-            }
-            GameProfile profile = new GameProfile(uuid, player.getName());
-            MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
-            // Create an entity to load the player data
-            EntityPlayer entity = new EntityPlayer(server, server.getWorldServer(0), profile, new PlayerInteractManager(server.getWorldServer(0)));
-
-            // Get the bukkit entity
-            Player target = (entity == null) ? null : entity.getBukkitEntity();
-            if (target != null) {
-                // Load data
-                target.loadData();
-                // Return the entity
-                return target;
-            }
-        }
-        catch (Exception e) {
-            OpenInv.log(e);
-        }
-
-        return null;
-    }
-
-    private static UUID matchUser(String search) {
-        UUID found = null;
-
-        String lowerSearch = search.toLowerCase();
-        int delta = 2147483647;
-
-        OfflinePlayer[] offlinePlayers = Bukkit.getOfflinePlayers();
-        for (OfflinePlayer player : offlinePlayers) {
-            String name = player.getName();
-           
-            if (name == null){
-                continue;
-            }
-            if (name.equalsIgnoreCase(search)){
-                return player.getUniqueId();
-            }
-            if (name.toLowerCase().startsWith(lowerSearch)) {
-                int curDelta = name.length() - lowerSearch.length();
-                if (curDelta < delta) {
-                    found = player.getUniqueId();
-                    delta = curDelta;
-                }
-                if (curDelta == 0) {
-                    break;
-                }
-            }
-        }
-
-        return found;
-    }
-
-    /* (non-Javadoc)
-     * @see com.lishid.openinv.internal.IPlayerDataManager#loadPlayer(java.util.UUID)
-     */
-    @Override
-    public Player loadPlayer(UUID uuid) {
-    	OfflinePlayer player = Bukkit.getOfflinePlayer(uuid);
-        if (player == null || !player.hasPlayedBefore()) {
-            return null;
-        }
-        GameProfile profile = new GameProfile(uuid, player.getName());
-        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
-        // Create an entity to load the player data
-        EntityPlayer entity = new EntityPlayer(server, server.getWorldServer(0), profile, new PlayerInteractManager(server.getWorldServer(0)));
-
-        // Get the bukkit entity
-        Player target = (entity == null) ? null : entity.getBukkitEntity();
-        if (target != null) {
-            // Load data
-            target.loadData();
-            // Return the entity
-            return target;
-        }
-        return null;
-    }
-}

src/com/lishid/openinv/internal/v1_8_R1/SilentContainerChest.java

@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal.v1_8_R1;
-
-//Volatile
-import net.minecraft.server.v1_8_R1.*;
-
-public class SilentContainerChest extends ContainerChest {
-    public IInventory inv;
-
-    public SilentContainerChest(IInventory i1, IInventory i2, EntityHuman e1) {
-        super(i1, i2, e1);
-        inv = i2;
-        // close signal
-        inv.closeContainer(e1);
-    }
-
-    @Override
-    public void b(EntityHuman paramEntityHuman) {
-        // Don't send close signal twice, might screw up
-    }
-}

src/com/lishid/openinv/internal/v1_8_R1/SpecialEnderChest.java

@@ -1,126 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal.v1_8_R1;
-
-import java.lang.reflect.Field;
-import java.util.ArrayList;
-import java.util.List;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.internal.ISpecialEnderChest;
-
-import org.bukkit.entity.HumanEntity;
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.Inventory;
-import org.bukkit.inventory.InventoryHolder;
-
-//Volatile
-import net.minecraft.server.v1_8_R1.*;
-import org.bukkit.craftbukkit.v1_8_R1.entity.*;
-import org.bukkit.craftbukkit.v1_8_R1.inventory.*;
-
-public class SpecialEnderChest extends InventorySubcontainer implements IInventory, ISpecialEnderChest {
-    public List<HumanEntity> transaction = new ArrayList<HumanEntity>();
-    public boolean playerOnline = false;
-    private CraftPlayer owner;
-    private InventoryEnderChest enderChest;
-    private int maxStack = MAX_STACK;
-    private CraftInventory inventory = new CraftInventory(this);
-
-    public SpecialEnderChest(Player p, Boolean online) {
-        super(((CraftPlayer) p).getHandle().getEnderChest().getName(), ((CraftPlayer) p).getHandle().getEnderChest().hasCustomName(), ((CraftPlayer) p).getHandle().getEnderChest().getSize());
-        CraftPlayer player = (CraftPlayer) p;
-        this.enderChest = player.getHandle().getEnderChest();
-        this.owner = player;
-        this.items = enderChest.getContents();
-        OpenInv.enderChests.put(owner.getName().toLowerCase(), this);
-    }
-
-    public Inventory getBukkitInventory() {
-        return inventory;
-    }
-
-    public void InventoryRemovalCheck() {
-        owner.saveData();
-        if (transaction.isEmpty() && !playerOnline) {
-            OpenInv.enderChests.remove(owner.getName().toLowerCase());
-        }
-    }
-
-    public void PlayerGoOnline(Player p) {
-        if (!playerOnline) {
-            try {
-                InventoryEnderChest playerEnderChest = ((CraftPlayer) p).getHandle().getEnderChest();
-                Field field = playerEnderChest.getClass().getField("items");
-                field.setAccessible(true);
-                field.set(playerEnderChest, this.items);
-            }
-            catch (Exception e) {}
-            p.saveData();
-            playerOnline = true;
-        }
-    }
-
-    public void PlayerGoOffline() {
-        playerOnline = false;
-    }
-
-    public ItemStack[] getContents() {
-        return this.items;
-    }
-
-    public void onOpen(CraftHumanEntity who) {
-        transaction.add(who);
-    }
-
-    public void onClose(CraftHumanEntity who) {
-        transaction.remove(who);
-        this.InventoryRemovalCheck();
-    }
-
-    public List<HumanEntity> getViewers() {
-        return transaction;
-    }
-
-    public InventoryHolder getOwner() {
-        return this.owner;
-    }
-
-    public void setMaxStackSize(int size) {
-        maxStack = size;
-    }
-
-    public int getMaxStackSize() {
-        return maxStack;
-    }
-
-    public boolean a(EntityHuman entityhuman) {
-        return true;
-    }
-
-    public void startOpen() {
-
-    }
-
-    public void f() {
-
-    }
-
-    public void update() {
-        enderChest.update();
-    }
-}

src/com/lishid/openinv/internal/v1_8_R1/SpecialPlayerInventory.java

@@ -1,253 +0,0 @@
-/*
- * Copyright (C) 2011-2014 lishid.  All rights reserved.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation,  version 3.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.lishid.openinv.internal.v1_8_R1;
-
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.Inventory;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.internal.ISpecialPlayerInventory;
-
-//Volatile
-import net.minecraft.server.v1_8_R1.*;
-import org.bukkit.craftbukkit.v1_8_R1.entity.*;
-import org.bukkit.craftbukkit.v1_8_R1.inventory.*;
-
-public class SpecialPlayerInventory extends PlayerInventory implements ISpecialPlayerInventory {
-    CraftPlayer owner;
-    public boolean playerOnline = false;
-    private ItemStack[] extra = new ItemStack[5];
-    private CraftInventory inventory = new CraftInventory(this);
-
-    public SpecialPlayerInventory(Player p, Boolean online) {
-        super(((CraftPlayer) p).getHandle());
-        this.owner = ((CraftPlayer) p);
-        this.playerOnline = online;
-        this.items = player.inventory.items;
-        this.armor = player.inventory.armor;
-        OpenInv.inventories.put(owner.getName().toLowerCase(), this);
-    }
-
-    @Override
-    public Inventory getBukkitInventory() {
-        return inventory;
-    }
-
-    @Override
-    public void InventoryRemovalCheck() {
-        owner.saveData();
-        if (transaction.isEmpty() && !playerOnline) {
-            OpenInv.inventories.remove(owner.getName().toLowerCase());
-        }
-    }
-
-    @Override
-    public void PlayerGoOnline(Player player) {
-        if (!playerOnline) {
-            CraftPlayer p = (CraftPlayer) player;
-            p.getHandle().inventory.items = this.items;
-            p.getHandle().inventory.armor = this.armor;
-            p.saveData();
-            playerOnline = true;
-        }
-    }
-
-    @Override
-    public void PlayerGoOffline() {
-        playerOnline = false;
-        this.InventoryRemovalCheck();
-    }
-
-    @Override
-    public void onClose(CraftHumanEntity who) {
-        super.onClose(who);
-        this.InventoryRemovalCheck();
-    }
-
-    @Override
-    public ItemStack[] getContents() {
-        ItemStack[] C = new ItemStack[getSize()];
-        System.arraycopy(items, 0, C, 0, items.length);
-        System.arraycopy(armor, 0, C, items.length, armor.length);
-        return C;
-    }
-
-    @Override
-    public int getSize() {
-        return super.getSize() + 5;
-    }
-
-    @Override
-    public ItemStack getItem(int i) {
-        ItemStack[] is = this.items;
-
-        if (i >= is.length) {
-            i -= is.length;
-            is = this.armor;
-        }
-        else {
-            i = getReversedItemSlotNum(i);
-        }
-
-        if (i >= is.length) {
-            i -= is.length;
-            is = this.extra;
-        }
-        else if (is == this.armor) {
-            i = getReversedArmorSlotNum(i);
-        }
-
-        return is[i];
-    }
-
-    @Override
-    public ItemStack splitStack(int i, int j) {
-        ItemStack[] is = this.items;
-
-        if (i >= is.length) {
-            i -= is.length;
-            is = this.armor;
-        }
-        else {
-            i = getReversedItemSlotNum(i);
-        }
-
-        if (i >= is.length) {
-            i -= is.length;
-            is = this.extra;
-        }
-        else if (is == this.armor) {
-            i = getReversedArmorSlotNum(i);
-        }
-
-        if (is[i] != null) {
-            ItemStack itemstack;
-
-            if (is[i].count <= j) {
-                itemstack = is[i];
-                is[i] = null;
-                return itemstack;
-            }
-            else {
-                itemstack = is[i].a(j);
-                if (is[i].count == 0) {
-                    is[i] = null;
-                }
-
-                return itemstack;
-            }
-        }
-        else {
-            return null;
-        }
-    }
-
-    @Override
-    public ItemStack splitWithoutUpdate(int i) {
-        ItemStack[] is = this.items;
-
-        if (i >= is.length) {
-            i -= is.length;
-            is = this.armor;
-        }
-        else {
-            i = getReversedItemSlotNum(i);
-        }
-
-        if (i >= is.length) {
-            i -= is.length;
-            is = this.extra;
-        }
-        else if (is == this.armor) {
-            i = getReversedArmorSlotNum(i);
-        }
-
-        if (is[i] != null) {
-            ItemStack itemstack = is[i];
-
-            is[i] = null;
-            return itemstack;
-        }
-        else {
-            return null;
-        }
-    }
-
-    @Override
-    public void setItem(int i, ItemStack itemstack) {
-        ItemStack[] is = this.items;
-
-        if (i >= is.length) {
-            i -= is.length;
-            is = this.armor;
-        }
-        else {
-            i = getReversedItemSlotNum(i);
-        }
-
-        if (i >= is.length) {
-            i -= is.length;
-            is = this.extra;
-        }
-        else if (is == this.armor) {
-            i = getReversedArmorSlotNum(i);
-        }
-
-        // Effects
-        if (is == this.extra) {
-            owner.getHandle().drop(itemstack, true);
-            itemstack = null;
-        }
-
-        is[i] = itemstack;
-
-        owner.getHandle().defaultContainer.b();
-    }
-
-    private int getReversedItemSlotNum(int i) {
-        if (i >= 27)
-            return i - 27;
-        else
-            return i + 9;
-    }
-
-    private int getReversedArmorSlotNum(int i) {
-        if (i == 0)
-            return 3;
-        if (i == 1)
-            return 2;
-        if (i == 2)
-            return 1;
-        if (i == 3)
-            return 0;
-        else
-            return i;
-    }
-
-    @Override
-    public String getName() {
-        if (player.getName().length() > 16) {
-            return player.getName().substring(0, 16);
-        }
-        return player.getName();
-    }
-
-    @Override
-    public boolean a(EntityHuman entityhuman) {
-        return true;
-    }
-}

src/com/lishid/openinv/utils/ReflectionUtil.java

@@ -1,510 +0,0 @@
-package com.lishid.openinv.utils;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.bukkit.Bukkit;
-
-public final class ReflectionUtil {
-    private ReflectionUtil() {}
-
-    public static Class<?> getClass(String name, PackageType type) throws Exception {
-        return Class.forName(type + "." + name);
-    }
-
-    public static Class<?> getClass(String name, SubPackageType type) throws Exception {
-        return Class.forName(type + "." + name);
-    }
-
-    public static Constructor<?> getConstructor(Class<?> clazz, Class<?>... parameterTypes) {
-        Class<?>[] p = DataType.convertToPrimitive(parameterTypes);
-        for (Constructor<?> c : clazz.getConstructors())
-            if (DataType.equalsArray(DataType.convertToPrimitive(c.getParameterTypes()), p))
-                return c;
-        return null;
-    }
-
-    public static Constructor<?> getConstructor(String className, PackageType type, Class<?>... parameterTypes) throws Exception {
-        return getConstructor(getClass(className, type), parameterTypes);
-    }
-
-    public static Constructor<?> getConstructor(String className, SubPackageType type, Class<?>... parameterTypes) throws Exception {
-        return getConstructor(getClass(className, type), parameterTypes);
-    }
-
-    public static Object newInstance(Class<?> clazz, Object... args) throws Exception {
-        return getConstructor(clazz, DataType.convertToPrimitive(args)).newInstance(args);
-    }
-
-    public static Object newInstance(String className, PackageType type, Object... args) throws Exception {
-        return newInstance(getClass(className, type), args);
-    }
-
-    public static Object newInstance(String className, SubPackageType type, Object... args) throws Exception {
-        return newInstance(getClass(className, type), args);
-    }
-
-    public static Method getMethod(Class<?> clazz, String name, Class<?>... parameterTypes) {
-        Class<?>[] p = DataType.convertToPrimitive(parameterTypes);
-        for (Method m : clazz.getMethods())
-            if (m.getName().equals(name) && DataType.equalsArray(DataType.convertToPrimitive(m.getParameterTypes()), p))
-                return m;
-        return null;
-    }
-
-    public static Method getMethod(String className, PackageType type, String name, Class<?>... parameterTypes) throws Exception {
-        return getMethod(getClass(className, type), name, parameterTypes);
-    }
-
-    public static Method getMethod(String className, SubPackageType type, String name, Class<?>... parameterTypes) throws Exception {
-        return getMethod(getClass(className, type), name, parameterTypes);
-    }
-
-    public static Object invokeMethod(String name, Object instance, Object... args) throws Exception {
-        return getMethod(instance.getClass(), name, DataType.convertToPrimitive(args)).invoke(instance, args);
-    }
-
-    public static Object invokeMethod(Class<?> clazz, String name, Object instance, Object... args) throws Exception {
-        return getMethod(clazz, name, DataType.convertToPrimitive(args)).invoke(instance, args);
-    }
-
-    public static Object invokeMethod(String className, PackageType type, String name, Object instance, Object... args) throws Exception {
-        return invokeMethod(getClass(className, type), name, instance, args);
-    }
-
-    public static Object invokeMethod(String className, SubPackageType type, String name, Object instance, Object... args) throws Exception {
-        return invokeMethod(getClass(className, type), name, instance, args);
-    }
-
-    public static Field getField(Class<?> clazz, String name) throws Exception {
-        Field f = clazz.getField(name);
-        f.setAccessible(true);
-        return f;
-    }
-
-    public static Field getField(String className, PackageType type, String name) throws Exception {
-        return getField(getClass(className, type), name);
-    }
-
-    public static Field getField(String className, SubPackageType type, String name) throws Exception {
-        return getField(getClass(className, type), name);
-    }
-
-    public static Field getDeclaredField(Class<?> clazz, String name) throws Exception {
-        Field f = clazz.getDeclaredField(name);
-        f.setAccessible(true);
-        return f;
-    }
-
-    public static Field getDeclaredField(String className, PackageType type, String name) throws Exception {
-        return getDeclaredField(getClass(className, type), name);
-    }
-
-    public static Field getDeclaredField(String className, SubPackageType type, String name) throws Exception {
-        return getDeclaredField(getClass(className, type), name);
-    }
-
-    public static Object getValue(Object instance, String fieldName) throws Exception {
-        return getField(instance.getClass(), fieldName).get(instance);
-    }
-
-    public static Object getValue(Class<?> clazz, Object instance, String fieldName) throws Exception {
-        return getField(clazz, fieldName).get(instance);
-    }
-
-    public static Object getValue(String className, PackageType type, Object instance, String fieldName) throws Exception {
-        return getValue(getClass(className, type), instance, fieldName);
-    }
-
-    public static Object getValue(String className, SubPackageType type, Object instance, String fieldName) throws Exception {
-        return getValue(getClass(className, type), instance, fieldName);
-    }
-
-    public static Object getDeclaredValue(Object instance, String fieldName) throws Exception {
-        return getDeclaredField(instance.getClass(), fieldName).get(instance);
-    }
-
-    public static Object getDeclaredValue(Class<?> clazz, Object instance, String fieldName) throws Exception {
-        return getDeclaredField(clazz, fieldName).get(instance);
-    }
-
-    public static Object getDeclaredValue(String className, PackageType type, Object instance, String fieldName) throws Exception {
-        return getDeclaredValue(getClass(className, type), instance, fieldName);
-    }
-
-    public static Object getDeclaredValue(String className, SubPackageType type, Object instance, String fieldName) throws Exception {
-        return getDeclaredValue(getClass(className, type), instance, fieldName);
-    }
-
-    public static void setValue(Object instance, String fieldName, Object fieldValue) throws Exception {
-        Field f = getField(instance.getClass(), fieldName);
-        f.set(instance, fieldValue);
-    }
-
-    public static void setValue(Object instance, FieldPair pair) throws Exception {
-        setValue(instance, pair.getName(), pair.getValue());
-    }
-
-    public static void setValue(Class<?> clazz, Object instance, String fieldName, Object fieldValue) throws Exception {
-        Field f = getField(clazz, fieldName);
-        f.set(instance, fieldValue);
-    }
-
-    public static void setValue(Class<?> clazz, Object instance, FieldPair pair) throws Exception {
-        setValue(clazz, instance, pair.getName(), pair.getValue());
-    }
-
-    public static void setValue(String className, PackageType type, Object instance, String fieldName, Object fieldValue) throws Exception {
-        setValue(getClass(className, type), instance, fieldName, fieldValue);
-    }
-
-    public static void setValue(String className, PackageType type, Object instance, FieldPair pair) throws Exception {
-        setValue(className, type, instance, pair.getName(), pair.getValue());
-    }
-
-    public static void setValue(String className, SubPackageType type, Object instance, String fieldName, Object fieldValue) throws Exception {
-        setValue(getClass(className, type), instance, fieldName, fieldValue);
-    }
-
-    public static void setValue(String className, SubPackageType type, Object instance, FieldPair pair) throws Exception {
-        setValue(className, type, instance, pair.getName(), pair.getValue());
-    }
-
-    public static void setValues(Object instance, FieldPair... pairs) throws Exception {
-        for (FieldPair pair : pairs)
-            setValue(instance, pair);
-    }
-
-    public static void setValues(Class<?> clazz, Object instance, FieldPair... pairs) throws Exception {
-        for (FieldPair pair : pairs)
-            setValue(clazz, instance, pair);
-    }
-
-    public static void setValues(String className, PackageType type, Object instance, FieldPair... pairs) throws Exception {
-        setValues(getClass(className, type), instance, pairs);
-    }
-
-    public static void setValues(String className, SubPackageType type, Object instance, FieldPair... pairs) throws Exception {
-        setValues(getClass(className, type), instance, pairs);
-    }
-
-    public static void setDeclaredValue(Object instance, String fieldName, Object fieldValue) throws Exception {
-        Field f = getDeclaredField(instance.getClass(), fieldName);
-        f.set(instance, fieldValue);
-    }
-
-    public static void setDeclaredValue(Object instance, FieldPair pair) throws Exception {
-        setDeclaredValue(instance, pair.getName(), pair.getValue());
-    }
-
-    public static void setDeclaredValue(Class<?> clazz, Object instance, String fieldName, Object fieldValue) throws Exception {
-        Field f = getDeclaredField(clazz, fieldName);
-        f.set(instance, fieldValue);
-    }
-
-    public static void setDeclaredValue(Class<?> clazz, Object instance, FieldPair pair) throws Exception {
-        setDeclaredValue(clazz, instance, pair.getName(), pair.getValue());
-    }
-
-    public static void setDeclaredValue(String className, PackageType type, Object instance, String fieldName, Object fieldValue) throws Exception {
-        setDeclaredValue(getClass(className, type), instance, fieldName, fieldValue);
-    }
-
-    public static void setDeclaredValue(String className, PackageType type, Object instance, FieldPair pair) throws Exception {
-        setDeclaredValue(className, type, instance, pair.getName(), pair.getValue());
-    }
-
-    public static void setDeclaredValue(String className, SubPackageType type, Object instance, String fieldName, Object fieldValue) throws Exception {
-        setDeclaredValue(getClass(className, type), instance, fieldName, fieldValue);
-    }
-
-    public static void setDeclaredValue(String className, SubPackageType type, Object instance, FieldPair pair) throws Exception {
-        setDeclaredValue(className, type, instance, pair.getName(), pair.getValue());
-    }
-
-    public static void setDeclaredValues(Object instance, FieldPair... pairs) throws Exception {
-        for (FieldPair pair : pairs)
-            setDeclaredValue(instance, pair);
-    }
-
-    public static void setDeclaredValues(Class<?> clazz, Object instance, FieldPair... pairs) throws Exception {
-        for (FieldPair pair : pairs)
-            setDeclaredValue(clazz, instance, pair);
-    }
-
-    public static void setDeclaredValues(String className, PackageType type, Object instance, FieldPair... pairs) throws Exception {
-        setDeclaredValues(getClass(className, type), instance, pairs);
-    }
-
-    public static void setDeclaredValues(String className, SubPackageType type, Object instance, FieldPair... pairs) throws Exception {
-        setDeclaredValues(getClass(className, type), instance, pairs);
-    }
-
-    public enum DataType {
-        BYTE(byte.class, Byte.class),
-        SHORT(short.class, Short.class),
-        INTEGER(int.class, Integer.class),
-        LONG(long.class, Long.class),
-        CHARACTER(char.class, Character.class),
-        FLOAT(float.class, Float.class),
-        DOUBLE(double.class, Double.class),
-        BOOLEAN(boolean.class, Boolean.class);
-
-        private static final Map<Class<?>, DataType> CLASS_MAP = new HashMap<Class<?>, DataType>();
-        private final Class<?> primitive;
-        private final Class<?> reference;
-
-        static {
-            for (DataType t : values()) {
-                CLASS_MAP.put(t.primitive, t);
-                CLASS_MAP.put(t.reference, t);
-            }
-        }
-
-        private DataType(Class<?> primitive, Class<?> reference) {
-            this.primitive = primitive;
-            this.reference = reference;
-        }
-
-        public Class<?> getPrimitive() {
-            return this.primitive;
-        }
-
-        public Class<?> getReference() {
-            return this.reference;
-        }
-
-        public static DataType fromClass(Class<?> c) {
-            return CLASS_MAP.get(c);
-        }
-
-        public static Class<?> getPrimitive(Class<?> c) {
-            DataType t = fromClass(c);
-            return t == null ? c : t.getPrimitive();
-        }
-
-        public static Class<?> getReference(Class<?> c) {
-            DataType t = fromClass(c);
-            return t == null ? c : t.getReference();
-        }
-
-        public static Class<?>[] convertToPrimitive(Class<?>[] classes) {
-            int length = classes == null ? 0 : classes.length;
-            Class<?>[] types = new Class<?>[length];
-            for (int i = 0; i < length; i++)
-                types[i] = getPrimitive(classes[i]);
-            return types;
-        }
-
-        public static Class<?>[] convertToPrimitive(Object[] objects) {
-            int length = objects == null ? 0 : objects.length;
-            Class<?>[] types = new Class<?>[length];
-            for (int i = 0; i < length; i++)
-                types[i] = getPrimitive(objects[i].getClass());
-            return types;
-        }
-
-        public static boolean equalsArray(Class<?>[] a1, Class<?>[] a2) {
-            if (a1 == null || a2 == null || a1.length != a2.length)
-                return false;
-            for (int i = 0; i < a1.length; i++)
-                if (!a1[i].equals(a2[i]) && !a1[i].isAssignableFrom(a2[i]))
-                    return false;
-            return true;
-        }
-    }
-
-    public final class FieldPair {
-        private final String name;
-        private final Object value;
-
-        public FieldPair(String name, Object value) {
-            this.name = name;
-            this.value = value;
-        }
-
-        public String getName() {
-            return this.name;
-        }
-
-        public Object getValue() {
-            return this.value;
-        }
-    }
-
-    public enum PackageType {
-        MINECRAFT_SERVER("net.minecraft.server." + Bukkit.getServer().getClass().getPackage().getName().substring(23)),
-        CRAFTBUKKIT(Bukkit.getServer().getClass().getPackage().getName());
-
-        private final String name;
-
-        private PackageType(String name) {
-            this.name = name;
-        }
-
-        public String getName() {
-            return this.name;
-        }
-
-        @Override
-        public String toString() {
-            return name;
-        }
-    }
-
-    public enum SubPackageType {
-        BLOCK,
-        CHUNKIO,
-        COMMAND,
-        CONVERSATIONS,
-        ENCHANTMENS,
-        ENTITY,
-        EVENT,
-        GENERATOR,
-        HELP,
-        INVENTORY,
-        MAP,
-        METADATA,
-        POTION,
-        PROJECTILES,
-        SCHEDULER,
-        SCOREBOARD,
-        UPDATER,
-        UTIL;
-
-        private final String name;
-
-        private SubPackageType() {
-            name = PackageType.CRAFTBUKKIT + "." + name().toLowerCase();
-        }
-
-        public String getName() {
-            return this.name;
-        }
-
-        @Override
-        public String toString() {
-            return name;
-        }
-    }
-
-    public enum PacketType {
-        HANDSHAKING_IN_SET_PROTOCOL("PacketHandshakingInSetProtocol"),
-        LOGIN_IN_ENCRYPTION_BEGIN("PacketLoginInEncryptionBegin"),
-        LOGIN_IN_START("PacketLoginInStart"),
-        LOGIN_OUT_DISCONNECT("PacketLoginOutDisconnect"),
-        LOGIN_OUT_ENCRYPTION_BEGIN("PacketLoginOutEncryptionBegin"),
-        LOGIN_OUT_SUCCESS("PacketLoginOutSuccess"),
-        PLAY_IN_ABILITIES("PacketPlayInAbilities"),
-        PLAY_IN_ARM_ANIMATION("PacketPlayInArmAnimation"),
-        PLAY_IN_BLOCK_DIG("PacketPlayInBlockDig"),
-        PLAY_IN_BLOCK_PLACE("PacketPlayInBlockPlace"),
-        PLAY_IN_CHAT("PacketPlayInChat"),
-        PLAY_IN_CLIENT_COMMAND("PacketPlayInClientCommand"),
-        PLAY_IN_CLOSE_WINDOW("PacketPlayInCloseWindow"),
-        PLAY_IN_CUSTOM_PAYLOAD("PacketPlayInCustomPayload"),
-        PLAY_IN_ENCHANT_ITEM("PacketPlayInEnchantItem"),
-        PLAY_IN_ENTITY_ACTION("PacketPlayInEntityAction"),
-        PLAY_IN_FLYING("PacketPlayInFlying"),
-        PLAY_IN_HELD_ITEM_SLOT("PacketPlayInHeldItemSlot"),
-        PLAY_IN_KEEP_ALIVE("PacketPlayInKeepAlive"),
-        PLAY_IN_LOOK("PacketPlayInLook"),
-        PLAY_IN_POSITION("PacketPlayInPosition"),
-        PLAY_IN_POSITION_LOOK("PacketPlayInPositionLook"),
-        PLAY_IN_SET_CREATIVE_SLOT("PacketPlayInSetCreativeSlot "),
-        PLAY_IN_SETTINGS("PacketPlayInSettings"),
-        PLAY_IN_STEER_VEHICLE("PacketPlayInSteerVehicle"),
-        PLAY_IN_TAB_COMPLETE("PacketPlayInTabComplete"),
-        PLAY_IN_TRANSACTION("PacketPlayInTransaction"),
-        PLAY_IN_UPDATE_SIGN("PacketPlayInUpdateSign"),
-        PLAY_IN_USE_ENTITY("PacketPlayInUseEntity"),
-        PLAY_IN_WINDOW_CLICK("PacketPlayInWindowClick"),
-        PLAY_OUT_ABILITIES("PacketPlayOutAbilities"),
-        PLAY_OUT_ANIMATION("PacketPlayOutAnimation"),
-        PLAY_OUT_ATTACH_ENTITY("PacketPlayOutAttachEntity"),
-        PLAY_OUT_BED("PacketPlayOutBed"),
-        PLAY_OUT_BLOCK_ACTION("PacketPlayOutBlockAction"),
-        PLAY_OUT_BLOCK_BREAK_ANIMATION("PacketPlayOutBlockBreakAnimation"),
-        PLAY_OUT_BLOCK_CHANGE("PacketPlayOutBlockChange"),
-        PLAY_OUT_CHAT("PacketPlayOutChat"),
-        PLAY_OUT_CLOSE_WINDOW("PacketPlayOutCloseWindow"),
-        PLAY_OUT_COLLECT("PacketPlayOutCollect"),
-        PLAY_OUT_CRAFT_PROGRESS_BAR("PacketPlayOutCraftProgressBar"),
-        PLAY_OUT_CUSTOM_PAYLOAD("PacketPlayOutCustomPayload"),
-        PLAY_OUT_ENTITY("PacketPlayOutEntity"),
-        PLAY_OUT_ENTITY_DESTROY("PacketPlayOutEntityDestroy"),
-        PLAY_OUT_ENTITY_EFFECT("PacketPlayOutEntityEffect"),
-        PLAY_OUT_ENTITY_EQUIPMENT("PacketPlayOutEntityEquipment"),
-        PLAY_OUT_ENTITY_HEAD_ROTATION("PacketPlayOutEntityHeadRotation"),
-        PLAY_OUT_ENTITY_LOOK("PacketPlayOutEntityLook"),
-        PLAY_OUT_ENTITY_METADATA("PacketPlayOutEntityMetadata"),
-        PLAY_OUT_ENTITY_STATUS("PacketPlayOutEntityStatus"),
-        PLAY_OUT_ENTITY_TELEPORT("PacketPlayOutEntityTeleport"),
-        PLAY_OUT_ENTITY_VELOCITY("PacketPlayOutEntityVelocity"),
-        PLAY_OUT_EXPERIENCE("PacketPlayOutExperience"),
-        PLAY_OUT_EXPLOSION("PacketPlayOutExplosion"),
-        PLAY_OUT_GAME_STATE_CHANGE("PacketPlayOutGameStateChange"),
-        PLAY_OUT_HELD_ITEM_SLOT("PacketPlayOutHeldItemSlot"),
-        PLAY_OUT_KEEP_ALIVE("PacketPlayOutKeepAlive"),
-        PLAY_OUT_KICK_DISCONNECT("PacketPlayOutKickDisconnect"),
-        PLAY_OUT_LOGIN("PacketPlayOutLogin"),
-        PLAY_OUT_MAP("PacketPlayOutMap"),
-        PLAY_OUT_MAP_CHUNK("PacketPlayOutMapChunk"),
-        PLAY_OUT_MAP_CHUNK_BULK("PacketPlayOutMapChunkBulk"),
-        PLAY_OUT_MULTI_BLOCK_CHANGE("PacketPlayOutMultiBlockChange"),
-        PLAY_OUT_NAMED_ENTITY_SPAWN("PacketPlayOutNamedEntitySpawn"),
-        PLAY_OUT_NAMED_SOUND_EFFECT("PacketPlayOutNamedSoundEffect"),
-        PLAY_OUT_OPEN_SIGN_EDITOR("PacketPlayOutOpenSignEditor"),
-        PLAY_OUT_OPEN_WINDOW("PacketPlayOutOpenWindow"),
-        PLAY_OUT_PLAYER_INFO("PacketPlayOutPlayerInfo"),
-        PLAY_OUT_POSITION("PacketPlayOutPosition"),
-        PLAY_OUT_REL_ENTITY_MOVE("PacketPlayOutRelEntityMove"),
-        PLAY_OUT_REL_ENTITY_MOVE_LOOK("PacketPlayOutRelEntityMoveLook"),
-        PLAY_OUT_REMOVE_ENTITY_EFFECT("PacketPlayOutRemoveEntityEffect"),
-        PLAY_OUT_RESPAWN("PacketPlayOutRespawn"),
-        PLAY_OUT_SCOREBOARD_DISPLAY_OBJECTIVE("PacketPlayOutScoreboardDisplayObjective"),
-        PLAY_OUT_SCOREBOARD_OBJECTIVE("PacketPlayOutScoreboardObjective"),
-        PLAY_OUT_SCOREBOARD_SCORE("PacketPlayOutScoreboardScore"),
-        PLAY_OUT_SCOREBOARD_TEAM("PacketPlayOutScoreboardTeam"),
-        PLAY_OUT_SET_SLOT("PacketPlayOutSetSlot"),
-        PLAY_OUT_SPAWN_ENTITY("PacketPlayOutSpawnEntity"),
-        PLAY_OUT_SPAWN_ENTITY_EXPERIENCE_ORB("PacketPlayOutSpawnEntityExperienceOrb"),
-        PLAY_OUT_SPAWN_ENTITY_LIVING("PacketPlayOutSpawnEntityLiving"),
-        PLAY_OUT_SPAWN_ENTITY_PAINTING("PacketPlayOutSpawnEntityPainting"),
-        PLAY_OUT_SPAWN_ENTITY_WEATHER("PacketPlayOutSpawnEntityWeather"),
-        PLAY_OUT_SPAWN_POSITION("PacketPlayOutSpawnPosition"),
-        PLAY_OUT_STATISTIC("PacketPlayOutStatistic"),
-        PLAY_OUT_TAB_COMPLETE("PacketPlayOutTabComplete"),
-        PLAY_OUT_TILE_ENTITY_DATA("PacketPlayOutTileEntityData"),
-        PLAY_OUT_TRANSACTION("PacketPlayOutTransaction"),
-        PLAY_OUT_UPDATE_ATTRIBUTES("PacketPlayOutUpdateAttributes"),
-        PLAY_OUT_UPDATE_HEALTH("PacketPlayOutUpdateHealth"),
-        PLAY_OUT_UPDATE_SIGN("PacketPlayOutUpdateSign"),
-        PLAY_OUT_UPDATE_TIME("PacketPlayOutUpdateTime"),
-        PLAY_OUT_WINDOW_ITEMS("PacketPlayOutWindowItems"),
-        PLAY_OUT_WORLD_EVENT("PacketPlayOutWorldEvent"),
-        PLAY_OUT_WORLD_PARTICLES("PacketPlayOutWorldParticles"),
-        STATUS_IN_PING("PacketStatusInPing"),
-        STATUS_IN_START("PacketStatusInStart"),
-        STATUS_OUT_PONG("PacketStatusOutPong"),
-        STATUS_OUT_SERVER_INFO("PacketStatusOutServerInfo");
-
-        private final String name;
-        private Class<?> packet;
-
-        private PacketType(String name) {
-            this.name = name;
-        }
-
-        public String getName() {
-            return this.getName();
-        }
-
-        public Class<?> getPacket() throws Exception {
-            return packet == null ? packet = ReflectionUtil.getClass(name, PackageType.MINECRAFT_SERVER) : packet;
-        }
-    }
-}

src/com/lishid/openinv/utils/UpdateManager.java

@@ -1,34 +0,0 @@
-package com.lishid.openinv.utils;
-
-import java.io.File;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.utils.Updater.UpdateResult;
-
-public class UpdateManager {
-    public Updater updater;
-
-    public void Initialize(OpenInv plugin, File file) {
-        updater = new Updater(plugin, 31432, file);
-
-        // Create task to update
-        plugin.getServer().getScheduler().runTaskTimerAsynchronously(plugin, new Runnable() {
-            @Override
-            public void run() {
-                // Check for updates
-                if (OpenInv.GetCheckForUpdates()) {
-                    UpdateResult result = updater.update();
-                    if (result != UpdateResult.NO_UPDATE) {
-                        if (result == UpdateResult.SUCCESS) {
-                            OpenInv.log("Update found! Downloaded new version.");
-                            OpenInv.log("This behaviour can be disabled in the config.yml");
-                        }
-                        else {
-                            OpenInv.log("Update failed, reason: " + result.toString());
-                        }
-                    }
-                }
-            }
-        }, 0, 20 * 60 * 1000); // Update every once a while
-    }
-}

src/com/lishid/openinv/utils/Updater.java

@@ -1,412 +0,0 @@
-/*
- * Updater for Bukkit.
- *
- * This class provides the means to safely and easily update a plugin, or check to see if it is updated using dev.bukkit.org
- */
-
-package com.lishid.openinv.utils;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLConnection;
-import java.util.Enumeration;
-import java.util.regex.Pattern;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-
-import org.bukkit.plugin.Plugin;
-import org.json.simple.JSONArray;
-import org.json.simple.JSONObject;
-import org.json.simple.JSONValue;
-
-/**
- * Check dev.bukkit.org to find updates for a given plugin, and download the updates if needed.
- * <p/>
- * <b>VERY, VERY IMPORTANT</b>: Because there are no standards for adding auto-update toggles in your plugin's config, this system provides NO CHECK WITH YOUR CONFIG to make sure the user has allowed
- * auto-updating. <br>
- * It is a <b>BUKKIT POLICY</b> that you include a boolean value in your config that prevents the auto-updater from running <b>AT ALL</b>. <br>
- * If you fail to include this option in your config, your plugin will be <b>REJECTED</b> when you attempt to submit it to dev.bukkit.org.
- * <p/>
- * An example of a good configuration option would be something similar to 'auto-update: true' - if this value is set to false you may NOT run the auto-updater. <br>
- * If you are unsure about these rules, please read the plugin submission guidelines: http://goo.gl/8iU5l
- * 
- * @author Gravity
- * @version 2.0
- */
-
-public class Updater {
-
-    private Plugin plugin;
-    private String versionName;
-    private String versionLink;
-    @SuppressWarnings("unused")
-    private String versionType;
-    @SuppressWarnings("unused")
-    private String versionGameVersion;
-
-    private boolean announce; // Whether to announce file downloads
-
-    private URL url; // Connecting to RSS
-    private File file; // The plugin's file
-
-    private int id = 31432; // Project's Curse ID
-    // SEE https://dev.bukkit.org/home/servermods-apikey/
-    private String apiKey = null; // BukkitDev ServerMods API key
-    private static final String TITLE_VALUE = "name"; // Gets remote file's title
-    private static final String LINK_VALUE = "downloadUrl"; // Gets remote file's download link
-    private static final String TYPE_VALUE = "releaseType"; // Gets remote file's release type
-    private static final String VERSION_VALUE = "gameVersion"; // Gets remote file's build version
-    private static final String QUERY = "/servermods/files?projectIds="; // Path to GET
-    private static final String HOST = "https://api.curseforge.com"; // Slugs will be appended to this to get to the project's RSS feed
-
-    private static final String[] NO_UPDATE_TAG = { "-DEV", "-PRE", "-SNAPSHOT" }; // If the version number contains one of these, don't update.
-    private static final int BYTE_SIZE = 1024; // Used for downloading files
-    private String updateFolder;// The folder that downloads will be placed in
-    private Updater.UpdateResult result = Updater.UpdateResult.SUCCESS; // Used for determining the outcome of the update process
-
-    /**
-     * Gives the dev the result of the update process. Can be obtained by called getResult().
-     */
-    public enum UpdateResult {
-        /**
-         * The updater found an update, and has readied it to be loaded the next time the server restarts/reloads.
-         */
-        SUCCESS,
-        /**
-         * The updater did not find an update, and nothing was downloaded.
-         */
-        NO_UPDATE,
-        /**
-         * The server administrator has disabled the updating system
-         */
-        DISABLED,
-        /**
-         * The updater found an update, but was unable to download it.
-         */
-        FAIL_DOWNLOAD,
-        /**
-         * For some reason, the updater was unable to contact dev.bukkit.org to download the file.
-         */
-        FAIL_DBO,
-        /**
-         * When running the version check, the file on DBO did not contain the a version in the format 'vVersion' such as 'v1.0'.
-         */
-        FAIL_NOVERSION,
-        /**
-         * The id provided by the plugin running the updater was invalid and doesn't exist on DBO.
-         */
-        FAIL_BADID,
-        /**
-         * The server administrator has improperly configured their API key in the configuration
-         */
-        FAIL_APIKEY,
-        /**
-         * The updater found an update, but because of the UpdateType being set to NO_DOWNLOAD, it wasn't downloaded.
-         */
-        UPDATE_AVAILABLE
-    }
-
-    /**
-     * Initialize the updater
-     * 
-     * @param plugin The plugin that is checking for an update.
-     * @param id The dev.bukkit.org id of the project
-     * @param file The file that the plugin is running from, get this by doing this.getFile() from within your main class.
-     */
-    public Updater(Plugin plugin, int id, File file) {
-        this.plugin = plugin;
-        this.file = file;
-        this.id = id;
-        this.updateFolder = plugin.getServer().getUpdateFolder();
-
-        try {
-            this.url = new URL(Updater.HOST + Updater.QUERY + id);
-        }
-        catch (final MalformedURLException e) {
-            plugin.getLogger().severe("The project ID provided for updating, " + id + " is invalid.");
-            this.result = UpdateResult.FAIL_BADID;
-            e.printStackTrace();
-        }
-    }
-
-    /**
-     * Save an update from dev.bukkit.org into the server's update folder.
-     */
-    private void saveFile(File folder, String file, String u) {
-        if (!folder.exists()) {
-            folder.mkdir();
-        }
-        BufferedInputStream in = null;
-        FileOutputStream fout = null;
-        try {
-            // Download the file
-            final URL url = new URL(u);
-            final int fileLength = url.openConnection().getContentLength();
-            in = new BufferedInputStream(url.openStream());
-            fout = new FileOutputStream(folder.getAbsolutePath() + "/" + file);
-
-            final byte[] data = new byte[Updater.BYTE_SIZE];
-            int count;
-            if (this.announce) {
-                this.plugin.getLogger().info("About to download a new update: " + this.versionName);
-            }
-            long downloaded = 0;
-            while ((count = in.read(data, 0, Updater.BYTE_SIZE)) != -1) {
-                downloaded += count;
-                fout.write(data, 0, count);
-                final int percent = (int) ((downloaded * 100) / fileLength);
-                if (this.announce && ((percent % 10) == 0)) {
-                    this.plugin.getLogger().info("Downloading update: " + percent + "% of " + fileLength + " bytes.");
-                }
-            }
-            // Just a quick check to make sure we didn't leave any files from last time...
-            for (final File xFile : new File(this.plugin.getDataFolder().getParent(), this.updateFolder).listFiles()) {
-                if (xFile.getName().endsWith(".zip")) {
-                    xFile.delete();
-                }
-            }
-            // Check to see if it's a zip file, if it is, unzip it.
-            final File dFile = new File(folder.getAbsolutePath() + "/" + file);
-            if (dFile.getName().endsWith(".zip")) {
-                // Unzip
-                this.unzip(dFile.getCanonicalPath());
-            }
-            if (this.announce) {
-                this.plugin.getLogger().info("Finished updating.");
-            }
-        }
-        catch (final Exception ex) {
-            this.plugin.getLogger().warning("The auto-updater tried to download a new update, but was unsuccessful.");
-            this.result = Updater.UpdateResult.FAIL_DOWNLOAD;
-        }
-        finally {
-            try {
-                if (in != null) {
-                    in.close();
-                }
-                if (fout != null) {
-                    fout.close();
-                }
-            }
-            catch (final Exception ex) {}
-        }
-    }
-
-    /**
-     * Part of Zip-File-Extractor, modified by Gravity for use with Bukkit
-     */
-    private void unzip(String file) {
-        try {
-            final File fSourceZip = new File(file);
-            final String zipPath = file.substring(0, file.length() - 4);
-            ZipFile zipFile = new ZipFile(fSourceZip);
-            Enumeration<? extends ZipEntry> e = zipFile.entries();
-            while (e.hasMoreElements()) {
-                ZipEntry entry = e.nextElement();
-                File destinationFilePath = new File(zipPath, entry.getName());
-                destinationFilePath.getParentFile().mkdirs();
-                if (entry.isDirectory()) {
-                    continue;
-                }
-                else {
-                    final BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));
-                    int b;
-                    final byte buffer[] = new byte[Updater.BYTE_SIZE];
-                    final FileOutputStream fos = new FileOutputStream(destinationFilePath);
-                    final BufferedOutputStream bos = new BufferedOutputStream(fos, Updater.BYTE_SIZE);
-                    while ((b = bis.read(buffer, 0, Updater.BYTE_SIZE)) != -1) {
-                        bos.write(buffer, 0, b);
-                    }
-                    bos.flush();
-                    bos.close();
-                    bis.close();
-                    final String name = destinationFilePath.getName();
-                    if (name.endsWith(".jar") && this.pluginFile(name)) {
-                        destinationFilePath.renameTo(new File(this.plugin.getDataFolder().getParent(), this.updateFolder + "/" + name));
-                    }
-                }
-                entry = null;
-                destinationFilePath = null;
-            }
-            e = null;
-            zipFile.close();
-            zipFile = null;
-
-            // Move any plugin data folders that were included to the right place, Bukkit won't do this for us.
-            for (final File dFile : new File(zipPath).listFiles()) {
-                if (dFile.isDirectory()) {
-                    if (this.pluginFile(dFile.getName())) {
-                        final File oFile = new File(this.plugin.getDataFolder().getParent(), dFile.getName()); // Get current dir
-                        final File[] contents = oFile.listFiles(); // List of existing files in the current dir
-                        for (final File cFile : dFile.listFiles()) // Loop through all the files in the new dir
-                        {
-                            boolean found = false;
-                            for (final File xFile : contents) // Loop through contents to see if it exists
-                            {
-                                if (xFile.getName().equals(cFile.getName())) {
-                                    found = true;
-                                    break;
-                                }
-                            }
-                            if (!found) {
-                                // Move the new file into the current dir
-                                cFile.renameTo(new File(oFile.getCanonicalFile() + "/" + cFile.getName()));
-                            }
-                            else {
-                                // This file already exists, so we don't need it anymore.
-                                cFile.delete();
-                            }
-                        }
-                    }
-                }
-                dFile.delete();
-            }
-            new File(zipPath).delete();
-            fSourceZip.delete();
-        }
-        catch (final IOException ex) {
-            this.plugin.getLogger().warning("The auto-updater tried to unzip a new update file, but was unsuccessful.");
-            this.result = Updater.UpdateResult.FAIL_DOWNLOAD;
-            ex.printStackTrace();
-        }
-        new File(file).delete();
-    }
-
-    /**
-     * Check if the name of a jar is one of the plugins currently installed, used for extracting the correct files out of a zip.
-     */
-    private boolean pluginFile(String name) {
-        for (final File file : new File("plugins").listFiles()) {
-            if (file.getName().equals(name)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Check to see if the program should continue by evaluation whether the plugin is already updated, or shouldn't be updated
-     */
-    private boolean versionCheck(String title) {
-        final String version = this.plugin.getDescription().getVersion();
-        if (title.split(" ").length == 2) {
-            final String remoteVersion = title.split(" ")[1].split(" ")[0]; // Get the newest file's version number
-
-            if (this.hasTag(version) || version.equalsIgnoreCase(remoteVersion) || !isNewer(version, remoteVersion)) {
-                // We already have the latest version, or this build is tagged for no-update
-                this.result = Updater.UpdateResult.NO_UPDATE;
-                return false;
-            }
-        }
-        else {
-            this.plugin.getLogger().warning("File versions should follow the format 'PluginName VERSION'");
-            this.result = Updater.UpdateResult.FAIL_NOVERSION;
-            return false;
-        }
-        return true;
-    }
-
-    /**
-     * Evaluate whether the version number is marked showing that it should not be updated by this program
-     */
-    private boolean hasTag(String version) {
-        for (final String string : Updater.NO_UPDATE_TAG) {
-            if (version.contains(string)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private boolean read() {
-        try {
-            final URLConnection conn = this.url.openConnection();
-            conn.setConnectTimeout(5000);
-
-            if (this.apiKey != null) {
-                conn.addRequestProperty("X-API-Key", this.apiKey);
-            }
-            conn.addRequestProperty("User-Agent", "Updater");
-
-            conn.setDoOutput(true);
-
-            final BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
-            final String response = reader.readLine();
-
-            final JSONArray array = (JSONArray) JSONValue.parse(response);
-
-            if (array.size() == 0) {
-                this.plugin.getLogger().warning("The updater could not find any files for the project id " + this.id);
-                this.result = UpdateResult.FAIL_BADID;
-                return false;
-            }
-
-            this.versionName = (String) ((JSONObject) array.get(array.size() - 1)).get(Updater.TITLE_VALUE);
-            this.versionLink = (String) ((JSONObject) array.get(array.size() - 1)).get(Updater.LINK_VALUE);
-            this.versionType = (String) ((JSONObject) array.get(array.size() - 1)).get(Updater.TYPE_VALUE);
-            this.versionGameVersion = (String) ((JSONObject) array.get(array.size() - 1)).get(Updater.VERSION_VALUE);
-
-            return true;
-        }
-        catch (final IOException e) {
-            if (e.getMessage().contains("HTTP response code: 403")) {
-                this.plugin.getLogger().warning("dev.bukkit.org rejected the API key provided in plugins/Updater/config.yml");
-                this.plugin.getLogger().warning("Please double-check your configuration to ensure it is correct.");
-                this.result = UpdateResult.FAIL_APIKEY;
-            }
-            else {
-                this.plugin.getLogger().warning("The updater could not contact curse for updating.");
-                this.result = UpdateResult.FAIL_DBO;
-            }
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    private static boolean isNewer(String oldVers, String newVers) {
-        String s1 = normalisedVersion(oldVers);
-        String s2 = normalisedVersion(newVers);
-        int cmp = s1.compareTo(s2);
-        return cmp < 0;
-    }
-
-    public static String normalisedVersion(String version) {
-        return normalisedVersion(version, ".", 3);
-    }
-
-    public static String normalisedVersion(String version, String sep, int maxWidth) {
-        String[] split = Pattern.compile(sep, Pattern.LITERAL).split(version);
-        StringBuilder sb = new StringBuilder();
-        for (String s : split) {
-            sb.append(String.format("%" + maxWidth + 's', s));
-        }
-        return sb.toString();
-    }
-
-    public UpdateResult update() {
-        if (Updater.this.url != null) {
-            // Obtain the results of the project's file feed
-            if (Updater.this.read()) {
-                if (Updater.this.versionCheck(Updater.this.versionName)) {
-                    if (Updater.this.versionLink != null) {
-                        String name = Updater.this.file.getName();
-                        // If it's a zip file, it shouldn't be downloaded as the plugin's name
-                        if (Updater.this.versionLink.endsWith(".zip")) {
-                            final String[] split = Updater.this.versionLink.split("/");
-                            name = split[split.length - 1];
-                        }
-                        Updater.this.saveFile(new File(Updater.this.plugin.getDataFolder().getParent(), Updater.this.updateFolder), name, Updater.this.versionLink);
-                    }
-                }
-            }
-        }
-        return this.result;
-    }
-}

src/plugin.yml

@@ -1,38 +0,0 @@
-name: OpenInv
-main: com.lishid.openinv.OpenInv
-version: 2.2.6
-author: lishid
-description: >
-             This plugin allows you to open a player's inventory as a chest and interact with it in real time.
-commands:
-  openinv:
-    aliases: [oi, inv, open]
-    description: Open a player's inventory
-    usage: |
-           /<command> - Open last person's inventory
-           /<command> <Player> - Open a player's inventory
-  openender:
-    aliases: [oe]
-    description: Opens the enderchest of a player
-    usage: |
-           /<command> <Player> - Opens a player's enderchest
-  searchinv:
-    aliases: [si]
-    description: Search and list players having a specific item
-    usage: |
-           /<command> <Item> [MinAmount] - Item can be the Item ID or the CraftBukkit Item Name, MinAmount is the minimum amount to be considered.
-  toggleopeninv:
-    aliases: [toi, toggleoi, toggleinv]
-    description: Toggle item openinv function
-    usage: |
-           /<command> [Check] - Checks whether item openinv is enabled
-  silentchest:
-    aliases: [sc, silent]
-    description: Toggle silent chest function, which hides the animation of a chest when opened or closed, and suppresses the sound.
-    usage: |
-           /<command> [Check] - Checks whether silent chest is enabled
-  anychest:
-    aliases: [ac]
-    description: Toggle anychest function, which allows opening of blocked chests.
-    usage: |
-           /<command> [Check] - Checks whether anychest is enabled