Bump version to 4.4.0 for release

Fix ender chests not being silent
Bump actions/checkout from 3 to 4 (#158 )
2023-10-04 22:18:38 -04:00 · 2023-10-04 22:15:35 -04:00 · 2023-10-04 21:52:28 -04:00 · 2023-10-01 17:45:00 +00:00 · 2023-09-22 23:46:43 -04:00 · 2023-09-22 23:20:13 -04:00
91 changed files with 8281 additions and 5645 deletions
@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "monthly"
@@ -0,0 +1,55 @@
+name: Auto-merge Dependabot PRs
+
+on:
+  workflow_run:
+    workflows: [ "Pull Request" ]
+    types: [ completed ]
+
+jobs:
+  merge-dependabot:
+    if: "github.actor == 'dependabot[bot]'
+      && github.event.workflow_run.event == 'pull_request'
+      && github.event.workflow_run.conclusion == 'success'"
+    runs-on: ubuntu-latest
+    steps:
+      # Note: this is directly from GitHub's example for using data from a triggering workflow:
+      # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#using-data-from-the-triggering-workflow
+      - name: 'Download artifact'
+        uses: actions/github-script@v6
+        with:
+          script: |
+            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               run_id: context.payload.workflow_run.id,
+            });
+            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == "pr_number"
+            })[0];
+            let download = await github.rest.actions.downloadArtifact({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               artifact_id: matchArtifact.id,
+               archive_format: 'zip',
+            });
+            let fs = require('fs');
+            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/pr_number.zip`, Buffer.from(download.data));
+
+      # This might be a useless use of cat, but I'm not sure what shell Actions is going to be running.
+      - name: Add Pull Number Variable
+        run: |-
+          unzip pr_number.zip
+          echo "PR_NUMBER=$(cat pr_number)" >> "$GITHUB_ENV"
+
+      - name: Approve
+        uses: hmarr/auto-approve-action@v3.2.1
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+          pull-request-number: "${{ env.PR_NUMBER }}"
+      - name: Merge
+        uses: pascalgn/automerge-action@v0.15.6
+        env:
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          MERGE_LABELS: "dependencies,java"
+          MERGE_METHOD: "squash"
+          PULL_REQUEST: "${{ env.PR_NUMBER }}"
@@ -0,0 +1,43 @@
+name: OpenInv CI
+
+on:
+  push:
+    branches:
+      - '**'
+    tags-ignore:
+      - '**'
+  # Enable running CI via other Actions, i.e. for drafting releases and handling PRs.
+  workflow_call:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+          cache: 'maven'
+
+      # Install Spigot dependencies if necessary.
+      - 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@v3
+        with:
+          name: dist
+          path: ./target/OpenInv.jar
+      - name: Upload API Jar
+        id: upload-api
+        uses: actions/upload-artifact@v3
+        with:
+          name: api
+          path: ./api/target/openinvapi*.jar
@@ -0,0 +1,39 @@
+name: Draft Github Release
+
+on:
+  push:
+    tags:
+      - '**'
+
+jobs:
+  run-ci:
+    uses: Jikoo/OpenInv/.github/workflows/ci.yml@master
+  draft-release:
+    needs: [ run-ci ]
+    runs-on: ubuntu-latest
+    steps:
+      # Fetch all history - used to assemble changelog.
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set Release Variables
+        run: bash ./scripts/set_release_env.sh
+
+      - name: Download Artifact
+        uses: actions/download-artifact@v3
+        with:
+          name: dist
+          path: dist
+
+      - name: Create Release
+        id: create-release
+        uses: softprops/action-gh-release@v0.1.15
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          name: ${{ env.VERSIONED_NAME }}
+          body: ${{ env.GENERATED_CHANGELOG }}
+          draft: true
+          prerelease: false
+          files: ./dist/OpenInv.jar
@@ -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@v4
+        with:
+          fetch-depth: 0
+
+      - name: Fetch Github Release Asset
+        uses: dsaltares/fetch-gh-release-asset@1.1.1
+        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 }}"
@@ -0,0 +1,22 @@
+name: Pull Request
+
+on:
+  pull_request:
+
+jobs:
+  run-ci:
+    uses: Jikoo/OpenInv/.github/workflows/ci.yml@master
+  store-dependabot-pr-data:
+    if: "github.actor == 'dependabot[bot]' && github.event_name == 'pull_request'"
+    runs-on: ubuntu-latest
+    steps:
+      # Note: this is directly from GitHub's example for using data from a triggering workflow:
+      # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#using-data-from-the-triggering-workflow
+      - name: Store Pull Number
+        run: |
+          mkdir -p ./pr
+          echo ${{ github.event.number }} > ./pr/pr_number
+      - uses: actions/upload-artifact@v3
+        with:
+          name: pr_number
+          path: pr/
@@ -1,11 +1,10 @@
 **/.settings
-**/.gitignore
 **/.project
 **/.classpath
-**/.idea
+**/.idea/
 **.iml
-**/target
-**/bin
-**/out
-**dependency-reduced-pom.xml
-**pom.xml.versionsBackup
+**/target/
+**/bin/
+**/out/
+**/dependency-reduced-pom.xml
+**/pom.xml.versionsBackup
@@ -15,48 +15,7 @@ OpenInv is a [Bukkit plugin](https://dev.bukkit.org/bukkit-plugins/openinv/) whi
 - **AnyContainer**: Open containers, even if blocked by ocelots or blocks.

 ## Commands
-<table width=100%>
-  <tr>
-    <th width=175px>Command</th>
-    <th>Aliases</th>
-    <th>Description</th>
-  </tr>
-  <tr>
-    <td>/openinv [player]</td>
-    <td>oi, inv, open</td>
-    <td>Open a player's inventory. If unspecified, will select last player opened or own if none opened previously.</td>
-  </tr>
-  <tr>
-    <td>/openender [player]</td>
-    <td>oe</td>
-    <td>Open a player's ender chest. If unspecified, will select last player opened or own if none opened previously.</td>
-  </tr>
-  <tr>
-    <td>/searchinv &ltitem&gt [minAmount]</td>
-    <td>si</td>
-    <td>Lists all online players that have a certain item in their inventory.</td>
-  </tr>
-  <tr>
-    <td>/searchender &ltitem&gt [minAmount]</td>
-    <td>se</td>
-    <td>Lists all online players that have a certain item in their ender chest.</td>
-  </tr>
-  <tr>
-    <td>/searchenchant &lt[enchantment] [MinLevel]&gt</td>
-    <td>searchenchants</td>
-    <td>Lists all online players with a specific enchantment.</td>
-  </tr>
-  <tr>
-    <td>/anycontainer [check]</td>
-    <td>ac, anychest</td>
-    <td>Check or toggle the AnyContainer function, allowing opening blocked containers.</td>
-  </tr>
-  <tr>
-    <td>/silentcontainer [check]</td>
-    <td>sc, silentchest</td>
-    <td>Check or toggle the SilentContainer function, allowing opening containers silently.</td>
-  </tr>
-</table>
+See [the wiki](https://github.com/Jikoo/OpenInv/wiki/Commands).

 ## Permissions
 <table>
@@ -80,6 +39,14 @@ OpenInv is a [Bukkit plugin](https://dev.bukkit.org/bukkit-plugins/openinv/) whi
    <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>
@@ -128,33 +95,45 @@ OpenInv is a [Bukkit plugin](https://dev.bukkit.org/bukkit-plugins/openinv/) whi
    <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
-To compile, the relevant Craftbukkit/Spigot jars must be installed in your local repository using the install plugin.
-Ex: `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`

-To compile for a single version, specify the NMS revision you are targeting: `mvn -pl <NMS module> -am clean install`
+### 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>
+```

-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`
+### Compilation
+To compile, the relevant Spigot jars must be installed in the local repository.
+As OpenInv is compiled against Mojang's mappings, you must run BuildTools with the `--remapped` argument:  
+`java -jar BuildTools.jar --remapped --rev $serverVersion`  
+`$serverVersion` is the version of the server, i.e. `1.18.1`

+To compile for a single version, specify the module you are targeting:  
+`mvn -pl $moduleName -am clean install`  
+`$moduleName` is the name of the module, i.e. `internal/v1_18_R1`.
+
+To compile for a set of versions, use a profile. Select a profile using the `-P` argument:  
+`mvn clean package -am -P all`  
+The only provided profile is `all`. The final file is `target/OpenInv.jar`  
 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`
-
-## License
-```
-Copyright (C) 2011-2019 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/>.
-```
@@ -1,5 +1,5 @@
 <!--
-  ~ Copyright (C) 2011-2020 lishid. All rights reserved.
+  ~ 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
@@ -19,9 +19,9 @@
  <modelVersion>4.0.0</modelVersion>

  <parent>
-    <groupId>com.lishid</groupId>
    <artifactId>openinvparent</artifactId>
-    <version>4.1.0</version>
+    <groupId>com.lishid</groupId>
+    <version>4.4.0</version>
  </parent>

  <artifactId>openinvapi</artifactId>
@@ -29,15 +29,12 @@

  <dependencies>
    <dependency>
-      <groupId>org.jetbrains</groupId>
      <artifactId>annotations</artifactId>
-      <version>17.0.0</version>
+      <groupId>org.jetbrains</groupId>
    </dependency>
    <dependency>
-      <groupId>org.spigotmc</groupId>
      <artifactId>spigot-api</artifactId>
-      <version>1.8.8-R0.1-SNAPSHOT</version>
-      <scope>provided</scope>
+      <groupId>org.spigotmc</groupId>
    </dependency>
  </dependencies>

@@ -45,11 +42,6 @@
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-        </configuration>
      </plugin>
    </plugins>
  </build>
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * Copyright (C) 2011-2023 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
@@ -22,7 +22,6 @@ 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.Logger;
 import org.bukkit.Bukkit;
@@ -35,272 +34,254 @@ 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.
+     * Check 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.
+     * Check the configuration value for whether 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.
     *
-     * @param offline the OfflinePlayer to load a Player for
-     * @return the Player, or null
+     * @return false unless configured otherwise
+     */
+    boolean disableSaving();
+
+    /**
+     * Check the configuration value for whether OpenInv allows offline access. If true, OpenInv will not load or allow
+     * modification of players while they are not online. This does not prevent other plugins from using existing loaded
+     * players who have gone offline.
+     *
+     * @return false unless configured otherwise
+     * @since 4.2.0
+     */
+    boolean disableOfflineAccess();
+
+    /**
+     * Check the configuration value for whether OpenInv uses history for opening commands. If false, OpenInv will use
+     * the previous parameterized search when no parameters are provided.
+     *
+     * @return false unless configured otherwise
+     * @since 4.3.0
+     */
+    boolean noArgsOpensSelf();
+
+    /**
+     * Get the active {@link IAnySilentContainer} implementation.
+     *
+     * @return the active implementation for the server version
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    @NotNull IAnySilentContainer getAnySilentContainer();
+
+    /**
+     * @deprecated Use static {@link InventoryAccess} methods.
+     */
+    @Deprecated(forRemoval = true)
+    default @NotNull IInventoryAccess getInventoryAccess() {
+        return new InventoryAccess();
+    }
+
+    /**
+     * @deprecated Use {@link #getAnyContainerStatus(OfflinePlayer)}. Not all containers are chests.
+     */
+    @Deprecated(forRemoval = true, since = "4.2.0")
+    default boolean getPlayerAnyChestStatus(@NotNull OfflinePlayer offline) {
+        return getAnyContainerStatus(offline);
+    }
+
+    /**
+     * Get whether a user has AnyContainer mode enabled.
+     *
+     * @param offline the user to obtain the state of
+     * @return true if AnyContainer mode is enabled
+     */
+    boolean getAnyContainerStatus(@NotNull OfflinePlayer offline);
+
+    /**
+     * @deprecated Use {@link #setAnyContainerStatus(OfflinePlayer, boolean)}. Not all containers are chests.
+     */
+    @Deprecated(forRemoval = true, since = "4.2.0")
+    default void setPlayerAnyChestStatus(@NotNull OfflinePlayer offline, boolean status) {
+        setAnyContainerStatus(offline, status);
+    }
+
+    /**
+     * Set whether a user has AnyContainer mode enabled.
+     *
+     * @param offline the user to set the state of
+     * @param status the state of the mode
+     */
+    void setAnyContainerStatus(@NotNull OfflinePlayer offline, boolean status);
+
+    /**
+     * @deprecated Use {@link #getSilentContainerStatus(OfflinePlayer)}. Not all containers are chests.
+     */
+    @Deprecated(forRemoval = true, since = "4.2.0")
+    default boolean getPlayerSilentChestStatus(@NotNull OfflinePlayer offline) {
+        return getSilentContainerStatus(offline);
+    }
+
+    /**
+     * Get whether a user has SilentContainer mode enabled.
+     *
+     * @param offline the user to obtain the state of
+     * @return true if SilentContainer mode is enabled
+     */
+    boolean getSilentContainerStatus(@NotNull OfflinePlayer offline);
+
+    /**
+     * @deprecated Use {@link #setSilentContainerStatus(OfflinePlayer, boolean)}. Not all containers are chests.
+     */
+    @Deprecated(forRemoval = true, since = "4.2.0")
+    default void setPlayerSilentChestStatus(@NotNull OfflinePlayer offline, boolean status) {
+        setSilentContainerStatus(offline, status);
+    }
+
+    /**
+     * Set whether a user has SilentContainer mode enabled.
+     *
+     * @param offline the user to set the state of
+     * @param status the state of the mode
+     */
+    void setSilentContainerStatus(@NotNull OfflinePlayer offline, boolean status);
+
+    /**
+     * Get a unique identifier by which the OfflinePlayer can be referenced.
+     *
+     * @deprecated Use {@link OfflinePlayer#getUniqueId()} and {@link UUID#toString()}. This was necessary for non-UUID
+     * versions of Minecraft, but support for them has been dropped for years.
+     * @param offline the OfflinePlayer
+     * @return the identifier
+     * @throws IllegalStateException if the server version is unsupported
+     */
+    @Deprecated(forRemoval = true)
+    default @NotNull String getPlayerID(@NotNull OfflinePlayer offline) {
+        return offline.getUniqueId().toString();
+    }
+
+    /**
+     * Get an {@link ISpecialEnderChest} for a user.
+     *
+     * @param player the {@link Player} owning the inventory
+     * @param online whether the owner is currently online
+     * @return the created inventory
+     * @throws IllegalStateException if the server version is unsupported
+     * @throws InstantiationException if there was an issue creating the inventory
+     */
+    @NotNull ISpecialEnderChest getSpecialEnderChest(@NotNull Player player, boolean online) throws InstantiationException;
+
+    /**
+     * Get an {@link ISpecialPlayerInventory} for a user.
+     *
+     * @param player the {@link Player} owning the inventory
+     * @param online whether the owner is currently online
+     * @return the created inventory
+     * @throws IllegalStateException if the server version is unsupported
+     * @throws InstantiationException if there was an issue creating the inventory
+     */
+    @NotNull ISpecialPlayerInventory getSpecialInventory(@NotNull Player player, boolean online) throws InstantiationException;
+
+    /**
+     * Open an {@link ISpecialInventory} for a {@link Player}.
+     *
+     * @param player the viewer
+     * @param inventory the inventory to open
+     * @return the resulting {@link InventoryView}
+     */
+    @Nullable InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory);
+
+    /**
+     * Check if a {@link Player} is currently loaded by OpenInv.
+     *
+     * @param playerUuid the {@link UUID} of the {@code Player}
+     * @return whether the {@code Player} is loaded
+     * @since 4.2.0
+     */
+    boolean isPlayerLoaded(@NotNull UUID playerUuid);
+
+    /**
+     * Load a {@link Player} from an {@link OfflinePlayer}. If the user has not played before or the default world for
+     * the server is not loaded, this will return {@code null}.
+     *
+     * @param offline the {@code OfflinePlayer} to load a {@code Player} for
+     * @return the loaded {@code Player}
     * @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
+     * Match an existing {@link OfflinePlayer}. If the name is a {@link UUID#toString() UUID string}, this will only
+     * return the user if they have actually played on the server before, unlike {@link Bukkit#getOfflinePlayer(UUID)}.
+     *
+     * <p>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
+     * @param name the string to match
+     * @return the user with the closest matching name
     */
-    default @Nullable OfflinePlayer matchPlayer(@NotNull String name) {
+    @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().warning("Trace:");
-            for (StackTraceElement element : new Throwable().fillInStackTrace().getStackTrace()) {
-                this.getLogger().warning(element.toString());
-            }
-        }
-
-        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
-        }
-
-        // Ensure name is valid if server is in online mode to avoid unnecessary searching
-        if (Bukkit.getServer().getOnlineMode() && !name.matches("[a-zA-Z0-9_]{3,16}")) {
-            return null;
-        }
-
-        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;
+    /**
+     * @deprecated OpenInv uses action bar chat for notifications. Whether they show is based on language settings.
+     */
+    @Deprecated(forRemoval = true)
+    default boolean notifyAnyChest() {
+        return true;
    }

    /**
-     * Open an ISpecialInventory for a Player.
-     *
-     * @param player the Player
-     * @param inventory the ISpecialInventory
-     * @return the InventoryView for the opened ISpecialInventory
+     * @deprecated OpenInv uses action bar chat for notifications. Whether they show is based on language settings.
     */
-    @Nullable InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory);
+    @Deprecated(forRemoval = true)
+    default boolean notifySilentChest() {
+        return true;
+    }

    /**
-     * 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 see {@link #retainPlayer(Player, Plugin)}
     */
-    boolean notifyAnyChest();
+    @Deprecated(forRemoval = true, since = "4.2.0")
+    default void releasePlayer(@NotNull Player player, @NotNull Plugin plugin) {}

    /**
-     * Check the configuration value for whether or not OpenInv displays a notification to the user
-     * when a container is activated with SilentChest.
+     * @deprecated OpenInv no longer uses an internal cache beyond maintaining copies of currently open inventories.
+     * If you wish to use/modify a player, ensure either {@link IOpenInv#isPlayerLoaded(UUID)} is false or the player
+     * instance is the same memory address as the one in use by OpenInv.
+     * <pre>
+     *  public &#64;NotNull Player savePlayerData(&#64;NotNull Player player) {
+     *     IOpenInv openInv = ...
+     *     if (!openInv.disableSaving() && openInv.isPlayerLoaded(player.getUniqueId())) {
+     *         Player openInvLoadedPlayer = openInv.loadPlayer(myInUsePlayer);
+     *         if (openInvLoadedPlayer != player) {
+     *             // The copy loaded by OpenInv is not the same as our loaded copy. Push our changes.
+     *             copyPlayerModifications(player, openInvLoadedPlayer);
+     *         }
+     *         // OpenInv will handle saving data when the player is unloaded.
+     *         // Optionally, to be sure our changes will persist, save now.
+     *         // openInvLoadedPlayer.saveData();
+     *         return openInvLoadedPlayer;
+     *     }
     *
-     * @return true unless configured otherwise
+     *     player.saveData();
+     *     return player;
+     * }
+     * </pre>
     */
-    boolean notifySilentChest();
+    @Deprecated(forRemoval = true, since = "4.2.0")
+    default void retainPlayer(@NotNull Player player, @NotNull Plugin plugin) {}

    /**
-     * Mark a Player as no longer in use by a Plugin to allow OpenInv to remove it from the cache
-     * when eligible.
+     * Forcibly close inventories of and unload any cached data for a user.
     *
-     * @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
+     * @param offline the {@link OfflinePlayer} to unload
     */
    void unload(@NotNull OfflinePlayer offline);

@@ -0,0 +1,74 @@
+package com.lishid.openinv.event;
+
+import com.lishid.openinv.internal.ISpecialInventory;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Event fired before OpenInv saves a player's data.
+ */
+public class OpenPlayerSaveEvent extends Event implements Cancellable {
+
+  private static final HandlerList HANDLERS = new HandlerList();
+
+  private final Player player;
+  private final ISpecialInventory inventory;
+  private boolean cancelled = false;
+
+  public OpenPlayerSaveEvent(@NotNull Player player, @NotNull ISpecialInventory inventory) {
+    this.player = player;
+    this.inventory = inventory;
+  }
+
+  /**
+   * Get the {@link Player} whose data is being saved.
+   *
+   * @return player the Player whose data is being saved
+   */
+  public @NotNull Player getPlayer() {
+    return player;
+  }
+
+  /**
+   * Get the {@link ISpecialInventory} that triggered the save by being closed.
+   *
+   * @return the special inventory
+   */
+  public @NotNull ISpecialInventory getInventory() {
+    return inventory;
+  }
+
+  /**
+   * Get whether the event is cancelled.
+   *
+   * @return true if the event is cancelled
+   */
+  @Override
+  public boolean isCancelled() {
+    return cancelled;
+  }
+
+  /**
+   * Set whether the event is cancelled.
+   *
+   * @param cancel whether the event is cancelled
+   */
+  @Override
+  public void setCancelled(boolean cancel) {
+    this.cancelled = cancel;
+  }
+
+  @NotNull
+  @Override
+  public HandlerList getHandlers() {
+    return HANDLERS;
+  }
+
+  public static HandlerList getHandlerList() {
+    return HANDLERS;
+  }
+
+}
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * Copyright (C) 2011-2023 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
@@ -16,46 +16,164 @@

 package com.lishid.openinv.internal;

+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.type.Chest;
+import org.bukkit.entity.Cat;
 import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryHolder;
+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.
+     * Forcibly open the container at the given coordinates for the Player. This will open blocked containers! Be sure
+     * to check {@link #isAnyContainerNeeded(Block)} first if that is not desirable.
     *
-     * @param player    the Player opening the container
-     * @param silent    whether the container's noise is to be silenced
-     * @param block     the Block
+     * @param player the {@link Player} opening the container
+     * @param silent whether the container's noise is to be silenced
+     * @param block  the {@link Block} of the container
     * @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.
+     * Perform operations required to close the current container silently.
     *
-     * @param player the Player closing a container
+     * @param player the {@link Player} closing a container
     */
    void deactivateContainer(@NotNull Player player);

    /**
-     * Checks if the container at the given coordinates is blocked.
-     *
-     * @param player the Player opening the container
-     * @param block  the Block
+     * @param player the player opening the container
+     * @param block  the {@link Block} of the container
     * @return true if the container is blocked
+     * @deprecated use {@link #isAnyContainerNeeded(Block)}
     */
-    boolean isAnyContainerNeeded(@NotNull Player player, @NotNull Block block);
+    @Deprecated(forRemoval = true, since = "4.1.9")
+    default boolean isAnyContainerNeeded(@NotNull Player player, @NotNull Block block) {
+        return isAnyContainerNeeded(block);
+    }

    /**
-     * Checks if the given block is a container which can be unblocked or silenced.
+     * Check if the container at the given coordinates is blocked.
     *
-     * @param block the BlockState
-     * @return true if the Block is a supported container
+     * @param block the {@link Block} of the container
+     * @return true if the container is blocked
     */
-    boolean isAnySilentContainer(@NotNull Block block);
+    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 shulker) {
+            if (isShulkerBlocked(shulker)) {
+                return true;
+            }
+        }
+
+        if (!(blockState instanceof org.bukkit.block.Chest)) {
+            return false;
+        }
+
+        if (isChestBlocked(block)) {
+            return true;
+        }
+
+        BlockData blockData = block.getBlockData();
+        if (!(blockData instanceof Chest chest) || ((Chest) blockData).getType() == Chest.Type.SINGLE) {
+            return false;
+        }
+
+        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 relativeChest)) {
+            return false;
+        }
+
+        if (relativeChest.getFacing() != chest.getFacing()
+                || relativeChest.getType() != (chest.getType() == Chest.Type.RIGHT ? Chest.Type.LEFT : Chest.Type.RIGHT)) {
+            return false;
+        }
+
+        return isChestBlocked(relative);
+    }
+
+    /**
+     * Check if a {@link ShulkerBox} cannot be opened under ordinary circumstances.
+     *
+     * @param shulkerBox the shulker box container
+     * @return whether the container is blocked
+     */
+    boolean isShulkerBlocked(@NotNull ShulkerBox shulkerBox);
+
+    /**
+     * Check if a chest cannot be opened under ordinary circumstances.
+     *
+     * @param chest the chest block
+     * @return whether the container is blocked
+     */
+    default boolean isChestBlocked(@NotNull 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;
+    }
+
+    /**
+     * Check if the given {@link Block} is a container which can be unblocked or silenced.
+     *
+     * @param block the potential container
+     * @return true if the type is a supported container
+     */
+    default boolean isAnySilentContainer(@NotNull Block block) {
+        return isAnySilentContainer(block.getState());
+    }
+
+    /**
+     * Check if the given {@link BlockState} is a container which can be unblocked or silenced.
+     *
+     * @param blockState the potential container
+     * @return true if the type is a supported container
+     */
+    default boolean isAnySilentContainer(@NotNull BlockState blockState) {
+        return blockState instanceof InventoryHolder holder && isAnySilentContainer(holder)
+                || blockState instanceof EnderChest;
+    }
+
+    /**
+     * Check if the given {@link InventoryHolder} is a container which can be unblocked or silenced.
+     *
+     * @param holder the potential container
+     * @return true if the type is a supported container
+     */
+    default boolean isAnySilentContainer(@NotNull InventoryHolder holder) {
+        return holder instanceof org.bukkit.block.EnderChest
+                || holder instanceof org.bukkit.block.Chest
+                || holder instanceof org.bukkit.block.DoubleChest
+                || holder instanceof org.bukkit.block.ShulkerBox
+                || holder instanceof org.bukkit.block.Barrel;
+    }

 }
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -16,49 +16,47 @@

 package com.lishid.openinv.internal;

+import com.lishid.openinv.util.InventoryAccess;
 import org.bukkit.inventory.Inventory;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

-@Deprecated
+/**
+ * @deprecated Use static {@link InventoryAccess} methods.
+ */
+@Deprecated(forRemoval = true)
 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 Use static {@link InventoryAccess} methods.
     */
-    @Deprecated
-    @Nullable ISpecialEnderChest getSpecialEnderChest(@NotNull Inventory inventory);
+    @Deprecated(forRemoval = true)
+    default @Nullable ISpecialEnderChest getSpecialEnderChest(@NotNull Inventory inventory) {
+        return InventoryAccess.getEnderChest(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 Use static {@link InventoryAccess} methods.
     */
-    @Deprecated
-    @Nullable ISpecialPlayerInventory getSpecialPlayerInventory(@NotNull Inventory inventory);
+    @Deprecated(forRemoval = true)
+    default @Nullable ISpecialPlayerInventory getSpecialPlayerInventory(@NotNull Inventory inventory) {
+        return InventoryAccess.getPlayerInventory(inventory);
+    }

    /**
-     * Check if an Inventory is an ISpecialEnderChest implementation.
-     *
-     * @param inventory the Inventory
-     * @return true if the Inventory is backed by an ISpecialEnderChest
+     * @deprecated Use static {@link InventoryAccess} methods.
     */
-    @Deprecated
-    boolean isSpecialEnderChest(@NotNull Inventory inventory);
+    @Deprecated(forRemoval = true)
+    default boolean isSpecialEnderChest(@NotNull Inventory inventory) {
+        return InventoryAccess.isEnderChest(inventory);
+    }

    /**
-     * Check if an Inventory is an ISpecialPlayerInventory implementation.
-     *
-     * @param inventory the Inventory
-     * @return true if the Inventory is backed by an ISpecialPlayerInventory
+     * @deprecated Use static {@link InventoryAccess} methods.
     */
-    @Deprecated
-    boolean isSpecialPlayerInventory(@NotNull Inventory inventory);
+    @Deprecated(forRemoval = true)
+    default boolean isSpecialPlayerInventory(@NotNull Inventory inventory) {
+        return InventoryAccess.isPlayerInventory(inventory);
+    }

 }
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -16,6 +16,9 @@

 package com.lishid.openinv.internal;

+/**
+ * An {@link ISpecialInventory} representing an ender chest.
+ */
 public interface ISpecialEnderChest extends ISpecialInventory {

 }
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -16,36 +16,49 @@

 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;

+/**
+ * Interface defining behavior for special inventories backed by other inventories' content listings.
+ */
 public interface ISpecialInventory {

    /**
-     * Gets the Inventory associated with this ISpecialInventory.
+     * Get the {@link Inventory} associated with this {@code ISpecialInventory}.
     *
-     * @return the Inventory
+     * @return the Bukkit inventory
     */
    @NotNull Inventory getBukkitInventory();

    /**
-     * Sets the Player associated with this ISpecialInventory online.
+     * Set the owning {@link Player} instance to a newly-joined user.
     *
-     * @param player the Player coming online
+     * @param player the user coming online
     */
    void setPlayerOnline(@NotNull Player player);

    /**
-     * Sets the Player associated with this ISpecialInventory offline.
+     * Mark the owner of the inventory offline.
     */
    void setPlayerOffline();

    /**
-     * Gets whether or not this ISpecialInventory is in use.
+     * Get whether the inventory is being viewed by any users.
     *
-     * @return true if the ISpecialInventory is in use
+     * @return true if the inventory is being viewed
     */
-    boolean isInUse();
+    default boolean isInUse() {
+        return !getBukkitInventory().getViewers().isEmpty();
+    }
+
+    /**
+     * Get the {@link Player} who owns the inventory.
+     *
+     * @return the {@link HumanEntity} who owns the inventory
+     */
+    @NotNull HumanEntity getPlayer();

 }
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -16,6 +16,35 @@

 package com.lishid.openinv.internal;

+import java.util.List;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.inventory.Inventory;
+
+/**
+ * An {@link ISpecialInventory} representing a player inventory.
+ */
 public interface ISpecialPlayerInventory extends ISpecialInventory {

+    /*
+     * Player inventory usage varies from all other inventories - as the inventory is technically open at all times,
+     * if the player is online or has been online while the inventory is open, they are in the viewer list.
+     */
+    @Override
+    default boolean isInUse() {
+        Inventory inventory = getBukkitInventory();
+        List<HumanEntity> viewers = inventory.getViewers();
+
+        if (viewers.size() != 1) {
+            return !viewers.isEmpty();
+        }
+
+        HumanEntity viewer = viewers.get(0);
+
+        if (!viewer.getUniqueId().equals(getPlayer().getUniqueId())) {
+            return true;
+        }
+
+        return viewer.getOpenInventory().getTopInventory().equals(inventory);
+    }
+
 }
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -18,128 +18,106 @@ 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 {
+public final class InventoryAccess implements IInventoryAccess {

    private static Class<?> craftInventory = null;
    private static Method getInventory = null;

    static {
        String packageName = Bukkit.getServer().getClass().getPackage().getName();
-        String version = packageName.substring(packageName.lastIndexOf('.') + 1);
-        try {
-            craftInventory = Class.forName("org.bukkit.craftbukkit." + version + ".inventory.CraftInventory");
-        } catch (ClassNotFoundException ignored) {}
        try {
+            craftInventory = Class.forName(packageName + ".inventory.CraftInventory");
            getInventory = craftInventory.getDeclaredMethod("getInventory");
-        } catch (NoSuchMethodException ignored) {}
+        } catch (ClassNotFoundException | NoSuchMethodException ignored) {}
    }

+    /**
+     * @deprecated use {@link #isUsable()}
+     */
+    @Deprecated(forRemoval = true)
    public static boolean isUseable() {
+        return isUsable();
+    }
+
+    public static boolean isUsable() {
        return craftInventory != null && getInventory != null;
    }

+    /**
+     * Check if an {@link Inventory} is an {@link ISpecialPlayerInventory} implementation.
+     *
+     * @param inventory the Bukkit inventory
+     * @return true if backed by the correct implementation
+     */
    public static boolean isPlayerInventory(@NotNull Inventory inventory) {
-        if (craftInventory.isAssignableFrom(inventory.getClass())) {
-            try {
-                return getInventory.invoke(inventory) instanceof ISpecialPlayerInventory;
-            } catch (ReflectiveOperationException ignored) {}
-        }
-        return grabFieldOfTypeFromObject(ISpecialPlayerInventory.class, inventory) != null;
+        return getPlayerInventory(inventory) != null;
    }

-    public static ISpecialPlayerInventory getPlayerInventory(@NotNull Inventory inventory) {
-        Object inv = null;
-        if (craftInventory.isAssignableFrom(inventory.getClass())) {
-            try {
-                inv = getInventory.invoke(inventory);
-            } catch (ReflectiveOperationException ignored) {}
-        }
-
-        if (inv == null) {
-            inv = grabFieldOfTypeFromObject(ISpecialPlayerInventory.class, inventory);
-        }
-
-        if (inv instanceof ISpecialPlayerInventory) {
-            return (ISpecialPlayerInventory) inv;
-        }
-
-        return null;
+    /**
+     * Get the {@link ISpecialPlayerInventory} backing an {@link Inventory}. Returns {@code null} if the inventory is
+     * not backed by the correct class.
+     *
+     * @param inventory the Bukkit inventory
+     * @return the backing implementation if available
+     */
+    public static @Nullable ISpecialPlayerInventory getPlayerInventory(@NotNull Inventory inventory) {
+        return getSpecialInventory(ISpecialPlayerInventory.class, inventory);
    }

+    /**
+     * Check if an {@link Inventory} is an {@link ISpecialEnderChest} implementation.
+     *
+     * @param inventory the Bukkit inventory
+     * @return true if backed by the correct implementation
+     */
    public static boolean isEnderChest(@NotNull Inventory inventory) {
-        if (craftInventory.isAssignableFrom(inventory.getClass())) {
-            try {
-                return getInventory.invoke(inventory) instanceof ISpecialEnderChest;
-            } catch (ReflectiveOperationException ignored) {}
-        }
-        return grabFieldOfTypeFromObject(ISpecialEnderChest.class, inventory) != null;
+        return getEnderChest(inventory) != null;
    }

-    public static ISpecialEnderChest getEnderChest(@NotNull Inventory inventory) {
-        Object inv = null;
-        if (craftInventory.isAssignableFrom(inventory.getClass())) {
+    /**
+     * Get the {@link ISpecialEnderChest} backing an {@link Inventory}. Returns {@code null} if the inventory is
+     * not backed by the correct class.
+     *
+     * @param inventory the Bukkit inventory
+     * @return the backing implementation if available
+     */
+    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 (isUsable() && craftInventory.isAssignableFrom(inventory.getClass())) {
            try {
                inv = getInventory.invoke(inventory);
+                if (expected.isInstance(inv)) {
+                    return expected.cast(inv);
+                }
            } catch (ReflectiveOperationException ignored) {}
        }

-        if (inv == null) {
-            inv = grabFieldOfTypeFromObject(ISpecialEnderChest.class, inventory);
-        }
+        // Use reflection to find the IInventory
+        inv = ReflectionHelper.grabObjectByType(inventory, expected);

-        if (inv instanceof ISpecialEnderChest) {
-            return (ISpecialEnderChest) inv;
+        if (expected.isInstance(inv)) {
+            return expected.cast(inv);
        }

        return null;
    }

-    private static <T> 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 Do not create a new instance to use static methods.
+     */
+    @Deprecated(forRemoval = true, since = "4.2.0")
+    public InventoryAccess() {}

-    @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);
-    }
 }
@@ -0,0 +1,75 @@
+/*
+ * 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.lang.reflect.Field;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * A utility for making reflection easier.
+ */
+public final class ReflectionHelper {
+
+    private ReflectionHelper() {}
+
+    /**
+     * Grab an {@link Object} stored in a {@link Field} of another {@code Object}.
+     *
+     * <p>This casts the field to the correct class. Any issues will result in a {@code null} return value.
+     *
+     * @param fieldType the {@link Class} of {@code Object} stored in the {@code Field}
+     * @param holder the containing {@code Object}
+     * @param <T> the type of stored {@code Object}
+     * @return the first matching {@code Object} or {@code null} if none match
+     */
+    public static <T> @Nullable T grabObjectByType(final Object holder, final Class<T> fieldType) {
+        Field field = grabFieldByType(holder.getClass(), fieldType);
+
+        if (field != null) {
+            try {
+                return fieldType.cast(field.get(holder));
+            } catch (IllegalAccessException ignored) {
+                // Ignore issues obtaining field
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * Grab a {@link Field} of an {@link Object}
+     *
+     * @param fieldType the {@link Class} of the object
+     * @param holderType the containing {@code Class}
+     * @return the first matching object or {@code null} if none match
+     */
+    public static @Nullable Field grabFieldByType(Class<?> holderType, Class<?> fieldType) {
+        for (Field field : holderType.getDeclaredFields()) {
+            field.setAccessible(true);
+            if (fieldType.isAssignableFrom(field.getType())) {
+                return field;
+            }
+        }
+
+        if (holderType.getSuperclass() != null) {
+            return grabFieldByType(fieldType, holderType.getSuperclass());
+        }
+
+        return null;
+    }
+
+}
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -1,5 +1,5 @@
 <!--
-  ~ Copyright (C) 2011-2020 lishid. All rights reserved.
+  ~ 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
@@ -21,11 +21,12 @@
  <parent>
    <groupId>com.lishid</groupId>
    <artifactId>openinvparent</artifactId>
-    <version>4.1.1-SNAPSHOT</version>
+    <version>4.4.0</version>
  </parent>

  <artifactId>openinvassembly</artifactId>
  <name>OpenInvAssembly</name>
+  <packaging>pom</packaging>

  <build>
    <directory>../target</directory>
@@ -34,7 +35,6 @@
    <plugins>
      <plugin>
        <artifactId>maven-assembly-plugin</artifactId>
-        <version>3.2.0</version>
        <executions>
          <execution>
            <id>reactor-uberjar</id>
@@ -1,5 +1,5 @@
 <!--
-  ~ Copyright (C) 2011-2020 lishid. All rights reserved.
+  ~ 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
@@ -14,9 +14,9 @@
  ~ along with this program. If not, see <http://www.gnu.org/licenses/>.
  -->

-<assembly xmlns="http://maven.apache.org/ASSEMBLY/2.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/ASSEMBLY/2.0.0 http://maven.apache.org/xsd/assembly-2.0.0.xsd">
+<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>

@@ -34,8 +34,18 @@
      <binaries>
        <outputDirectory>/</outputDirectory>
        <unpack>true</unpack>
-        <!-- unpackOptions must be present or build breaks. -->
-        <unpackOptions/>
+        <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>
@@ -1,44 +0,0 @@
-<!--
-  ~ Copyright (C) 2011-2020 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>4.1.1-SNAPSHOT</version>
-  </parent>
-
-  <artifactId>openinvinternal</artifactId>
-  <name>OpenInvInternal</name>
-
-  <packaging>pom</packaging>
-
-  <profiles>
-
-    <profile>
-      <id>all</id>
-      <modules>
-        <module>v1_8_R3</module>
-        <module>v1_14_R1</module>
-        <module>v1_15_R1</module>
-      </modules>
-    </profile>
-
-  </profiles>
-
-</project>
@@ -1,360 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_14_R1;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.internal.IAnySilentContainer;
-import java.lang.reflect.Field;
-import net.minecraft.server.v1_14_R1.Block;
-import net.minecraft.server.v1_14_R1.BlockBarrel;
-import net.minecraft.server.v1_14_R1.BlockChest;
-import net.minecraft.server.v1_14_R1.BlockChestTrapped;
-import net.minecraft.server.v1_14_R1.BlockEnderChest;
-import net.minecraft.server.v1_14_R1.BlockPosition;
-import net.minecraft.server.v1_14_R1.BlockPropertyChestType;
-import net.minecraft.server.v1_14_R1.BlockShulkerBox;
-import net.minecraft.server.v1_14_R1.ChatMessage;
-import net.minecraft.server.v1_14_R1.Container;
-import net.minecraft.server.v1_14_R1.ContainerChest;
-import net.minecraft.server.v1_14_R1.Containers;
-import net.minecraft.server.v1_14_R1.EntityHuman;
-import net.minecraft.server.v1_14_R1.EntityPlayer;
-import net.minecraft.server.v1_14_R1.EnumChatFormat;
-import net.minecraft.server.v1_14_R1.EnumGamemode;
-import net.minecraft.server.v1_14_R1.IBlockData;
-import net.minecraft.server.v1_14_R1.IChatBaseComponent;
-import net.minecraft.server.v1_14_R1.ITileInventory;
-import net.minecraft.server.v1_14_R1.InventoryEnderChest;
-import net.minecraft.server.v1_14_R1.InventoryLargeChest;
-import net.minecraft.server.v1_14_R1.PlayerInteractManager;
-import net.minecraft.server.v1_14_R1.PlayerInventory;
-import net.minecraft.server.v1_14_R1.TileEntity;
-import net.minecraft.server.v1_14_R1.TileEntityChest;
-import net.minecraft.server.v1_14_R1.TileEntityEnderChest;
-import net.minecraft.server.v1_14_R1.TileEntityLootable;
-import net.minecraft.server.v1_14_R1.TileInventory;
-import net.minecraft.server.v1_14_R1.World;
-import org.bukkit.Material;
-import org.bukkit.Statistic;
-import org.bukkit.block.Barrel;
-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.inventory.InventoryView;
-import org.bukkit.util.BoundingBox;
-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 isAnySilentContainer(@NotNull final org.bukkit.block.Block bukkitBlock) {
-        if (bukkitBlock.getType() == Material.ENDER_CHEST) {
-            return true;
-        }
-        BlockState state = bukkitBlock.getState();
-        return state instanceof org.bukkit.block.Chest
-                || state instanceof org.bukkit.block.ShulkerBox
-                || state instanceof org.bukkit.block.Barrel;
-    }
-
-    @Override
-    public boolean isAnyContainerNeeded(@NotNull final Player p, @NotNull final org.bukkit.block.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 (isBlockedChest(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 isBlockedChest(relative);
-    }
-
-    private boolean isBlockedChest(org.bukkit.block.Block block) {
-        org.bukkit.block.Block relative = block.getRelative(0, 1, 0);
-        return relative.getType().isOccluding()
-                || block.getWorld().getNearbyEntities(BoundingBox.of(relative), entity -> entity instanceof Cat).size() > 0;
-    }
-
-    @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;
-                int rows = enderChest.getSize() / 9;
-                switch (rows) {
-                    case 1:
-                        containers = Containers.GENERIC_9X1;
-                        break;
-                    case 2:
-                        containers = Containers.GENERIC_9X2;
-                        break;
-                    case 3:
-                    default:
-                        containers = Containers.GENERIC_9X3;
-                        break;
-                    case 4:
-                        containers = Containers.GENERIC_9X4;
-                        break;
-                    case 5:
-                        containers = Containers.GENERIC_9X5;
-                        break;
-                    case 6:
-                        containers = Containers.GENERIC_9X6;
-                        break;
-                }
-                return new ContainerChest(containers, containerCounter, playerInventory, enderChest, rows);
-            }, BlockEnderChest.d));
-            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.b);
-
-            if (chestType != BlockPropertyChestType.SINGLE) {
-
-                BlockPosition adjacentBlockPosition = blockPosition.shift(BlockChest.j(blockData));
-                IBlockData adjacentBlockData = world.getType(adjacentBlockPosition);
-
-                if (adjacentBlockData.getBlock() == block) {
-
-                    BlockPropertyChestType adjacentChestType = adjacentBlockData.get(BlockChest.b);
-
-                    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 (rightChest.lootTable != null || leftChest.lootTable != null) {
-                                player.a(new ChatMessage("Loot not generated! Please disable /silentcontainer.").a(EnumChatFormat.RED), true);
-                                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() {
-                                    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();
-        }
-    }
-
-}
@@ -1,206 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_14_R1;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.internal.IPlayerDataManager;
-import com.lishid.openinv.internal.ISpecialInventory;
-import com.mojang.authlib.GameProfile;
-import net.minecraft.server.v1_14_R1.ChatComponentText;
-import net.minecraft.server.v1_14_R1.ChatMessageType;
-import net.minecraft.server.v1_14_R1.Container;
-import net.minecraft.server.v1_14_R1.Containers;
-import net.minecraft.server.v1_14_R1.DimensionManager;
-import net.minecraft.server.v1_14_R1.EntityHuman;
-import net.minecraft.server.v1_14_R1.EntityPlayer;
-import net.minecraft.server.v1_14_R1.MinecraftServer;
-import net.minecraft.server.v1_14_R1.PacketPlayOutChat;
-import net.minecraft.server.v1_14_R1.PacketPlayOutOpenWindow;
-import net.minecraft.server.v1_14_R1.PlayerInteractManager;
-import net.minecraft.server.v1_14_R1.PlayerInventory;
-import org.bukkit.Bukkit;
-import org.bukkit.OfflinePlayer;
-import org.bukkit.Server;
-import org.bukkit.craftbukkit.v1_14_R1.CraftServer;
-import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftContainer;
-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;
-import org.jetbrains.annotations.Nullable;
-
-public class PlayerDataManager implements IPlayerDataManager {
-
-    @NotNull
-    public static 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 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
-        GameProfile profile = new GameProfile(offline.getUniqueId(), offline.getName());
-        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
-        EntityPlayer entity = new EntityPlayer(server, server.getWorldServer(DimensionManager.OVERWORLD), profile,
-                new PlayerInteractManager(server.getWorldServer(DimensionManager.OVERWORLD)));
-
-        // Get the bukkit entity
-        Player target = entity.getBukkitEntity();
-        if (target != null) {
-            // Load data
-            target.loadData();
-        }
-        // Return the entity
-        return target;
-    }
-
-    @Nullable
-	@Override
-    public InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
-
-        EntityPlayer nmsPlayer = getHandle(player);
-
-        if (nmsPlayer.playerConnection == null) {
-            return null;
-        }
-
-        String title;
-        if (inventory instanceof SpecialEnderChest) {
-            HumanEntity owner = (HumanEntity) ((SpecialEnderChest) inventory).getBukkitOwner();
-            title = OpenInv.getPlugin(OpenInv.class).getLocalizedMessage(player, "container.enderchest");
-            if (title == null) {
-                title = "%player%'s Ender Chest";
-            }
-            //noinspection ConstantConditions - owner name can be null if loaded by UUID
-            title = title.replace("%player%", owner.getName() != null ? owner.getName() : owner.getUniqueId().toString());
-        } else if (inventory instanceof SpecialPlayerInventory) {
-            EntityHuman owner = ((PlayerInventory) inventory).player;
-            title = OpenInv.getPlugin(OpenInv.class).getLocalizedMessage(player, "container.player");
-            if (title == null) {
-                title = "%player%'s Inventory";
-            }
-            title = title.replace("%player%", owner.getName() != null ? owner.getName() : owner.getUniqueID().toString());
-        } else {
-            return player.openInventory(inventory.getBukkitInventory());
-        }
-
-        String finalTitle = title;
-        Container container = new CraftContainer(new InventoryView() {
-            @Override
-            public @NotNull Inventory getTopInventory() {
-                return inventory.getBukkitInventory();
-            }
-            @Override
-            public @NotNull Inventory getBottomInventory() {
-                return player.getInventory();
-            }
-            @Override
-            public @NotNull HumanEntity getPlayer() {
-                return player;
-            }
-            @Override
-            public @NotNull InventoryType getType() {
-                return inventory.getBukkitInventory().getType();
-            }
-            @Override
-            public @NotNull String getTitle() {
-                return finalTitle;
-            }
-        }, nmsPlayer, nmsPlayer.nextContainerCounter()) {
-            @Override
-            public Containers<?> getType() {
-                switch (inventory.getBukkitInventory().getSize()) {
-                    case 9:
-                        return Containers.GENERIC_9X1;
-                    case 18:
-                        return Containers.GENERIC_9X2;
-                    case 27:
-                    default:
-                        return Containers.GENERIC_9X3;
-                    case 36:
-                        return Containers.GENERIC_9X4;
-                    case 41: // PLAYER
-                    case 45:
-                        return Containers.GENERIC_9X5;
-                    case 54:
-                        return Containers.GENERIC_9X6;
-                }
-            }
-        };
-
-        container.setTitle(new ChatComponentText(title));
-        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();
-
-    }
-
-    @Override
-    public void sendSystemMessage(@NotNull Player player, @NotNull String message) {
-        int newline = message.indexOf('\n');
-        if (newline != -1) {
-            // No newlines in action bar chat.
-            message = message.substring(0, newline);
-        }
-
-        if (message.isEmpty()) {
-            return;
-        }
-
-        EntityPlayer nmsPlayer = getHandle(player);
-
-        // For action bar chat, color codes are still supported but JSON text color is not allowed. Do not convert text.
-        if (nmsPlayer.playerConnection != null) {
-            nmsPlayer.playerConnection.sendPacket(new PacketPlayOutChat(new ChatComponentText(message), ChatMessageType.GAME_INFO));
-        }
-    }
-
-}
@@ -1,255 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_14_R1;
-
-import com.lishid.openinv.internal.ISpecialEnderChest;
-import java.util.List;
-import net.minecraft.server.v1_14_R1.AutoRecipeStackManager;
-import net.minecraft.server.v1_14_R1.ContainerUtil;
-import net.minecraft.server.v1_14_R1.EntityHuman;
-import net.minecraft.server.v1_14_R1.EntityPlayer;
-import net.minecraft.server.v1_14_R1.IInventoryListener;
-import net.minecraft.server.v1_14_R1.InventoryEnderChest;
-import net.minecraft.server.v1_14_R1.ItemStack;
-import net.minecraft.server.v1_14_R1.NonNullList;
-import org.bukkit.Location;
-import org.bukkit.craftbukkit.v1_14_R1.entity.CraftHumanEntity;
-import org.bukkit.craftbukkit.v1_14_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 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 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 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.a;
-    }
-
-    @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.a;
-            }
-
-            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.a;
-                    }
-                }
-            }
-        }
-
-        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.a;
-        } else {
-            this.items.set(i, ItemStack.a);
-            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 isNotEmpty() {
-
-        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);
-        }
-
-    }
-
-}
@@ -1,759 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_14_R1;
-
-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_14_R1.AutoRecipeStackManager;
-import net.minecraft.server.v1_14_R1.ChatMessage;
-import net.minecraft.server.v1_14_R1.ContainerUtil;
-import net.minecraft.server.v1_14_R1.CrashReport;
-import net.minecraft.server.v1_14_R1.CrashReportSystemDetails;
-import net.minecraft.server.v1_14_R1.EntityHuman;
-import net.minecraft.server.v1_14_R1.EntityPlayer;
-import net.minecraft.server.v1_14_R1.EnumItemSlot;
-import net.minecraft.server.v1_14_R1.IBlockData;
-import net.minecraft.server.v1_14_R1.IChatBaseComponent;
-import net.minecraft.server.v1_14_R1.Item;
-import net.minecraft.server.v1_14_R1.ItemArmor;
-import net.minecraft.server.v1_14_R1.ItemStack;
-import net.minecraft.server.v1_14_R1.NBTTagCompound;
-import net.minecraft.server.v1_14_R1.NBTTagList;
-import net.minecraft.server.v1_14_R1.NonNullList;
-import net.minecraft.server.v1_14_R1.PacketPlayOutSetSlot;
-import net.minecraft.server.v1_14_R1.PlayerInventory;
-import net.minecraft.server.v1_14_R1.ReportedException;
-import net.minecraft.server.v1_14_R1.World;
-import org.bukkit.Location;
-import org.bukkit.craftbukkit.v1_14_R1.entity.CraftHumanEntity;
-import org.bukkit.craftbukkit.v1_14_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 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.a;
-        }
-
-        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.a : 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 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.a;
-        }
-
-        return list.get(i).isEmpty() ? ItemStack.a : 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.a;
-        }
-
-        if (!list.get(i).isEmpty()) {
-            ItemStack itemstack = list.get(i);
-
-            list.set(i, ItemStack.a);
-            return itemstack;
-        }
-
-        return ItemStack.a;
-    }
-
-    @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.a;
-    }
-
-    private boolean a(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.a(itemstack, itemstack1)) {
-                remains -= (itemstack1.getMaxStackSize() < this.getMaxStackSize() ? itemstack1.getMaxStackSize() : this.getMaxStackSize()) - itemstack1.getCount();
-            }
-
-            if (remains <= 0) {
-                return itemstack.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) {
-        int j = 0;
-
-        int k;
-        for (k = 0; k < this.getSize(); ++k) {
-            ItemStack itemstack = this.getItem(k);
-            if (!itemstack.isEmpty() && predicate.test(itemstack)) {
-                int l = i <= 0 ? itemstack.getCount() : Math.min(i - j, itemstack.getCount());
-                j += l;
-                if (i != 0) {
-                    itemstack.subtract(l);
-                    if (itemstack.isEmpty()) {
-                        this.setItem(k, ItemStack.a);
-                    }
-
-                    if (i > 0 && j >= i) {
-                        return j;
-                    }
-                }
-            }
-        }
-
-        if (!this.getCarried().isEmpty() && predicate.test(this.getCarried())) {
-            k = i <= 0 ? this.getCarried().getCount() : Math.min(i - j, this.getCarried().getCount());
-            j += k;
-            if (i != 0) {
-                this.getCarried().subtract(k);
-                if (this.getCarried().isEmpty()) {
-                    this.setCarried(ItemStack.a);
-                }
-
-                if (i > 0 && j >= i) {
-                    return j;
-                }
-            }
-        }
-
-        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(itemstack.getTag().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) {
-            return j;
-        } else {
-            j -= k;
-            itemstack1.add(k);
-            itemstack1.d(5);
-            return j;
-        }
-    }
-
-    @Override
-    public int firstPartial(ItemStack itemstack) {
-        if (this.a(this.getItem(this.itemInHandIndex), itemstack)) {
-            return this.itemInHandIndex;
-        } else if (this.a(this.getItem(40), itemstack)) {
-            return 40;
-        } else {
-            for (int i = 0; i < this.items.size(); ++i) {
-                if (this.a(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.a);
-                    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 isNotEmpty() {
-        Iterator iterator = this.items.iterator();
-
-        ItemStack itemstack;
-        while (iterator.hasNext()) {
-            itemstack = (ItemStack)iterator.next();
-            if (!itemstack.isEmpty()) {
-                return false;
-            }
-        }
-
-        iterator = this.armor.iterator();
-
-        while (iterator.hasNext()) {
-            itemstack = (ItemStack)iterator.next();
-            if (!itemstack.isEmpty()) {
-                return false;
-            }
-        }
-
-        iterator = this.extraSlots.iterator();
-
-        while (iterator.hasNext()) {
-            itemstack = (ItemStack)iterator.next();
-            if (!itemstack.isEmpty()) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    @Nullable
-    @Override
-    public IChatBaseComponent getCustomName() {
-        return null;
-    }
-
-    @Override
-    public boolean b(IBlockData iblockdata) {
-        return this.getItem(this.itemInHandIndex).b(iblockdata);
-    }
-
-    @Override
-    public void a(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 (itemstack.getItem() instanceof ItemArmor) {
-                    itemstack.damage((int) f, this.player, (entityhuman) -> entityhuman.c(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.a);
-                    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);
-        }
-    }
-
-}
@@ -1,360 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_15_R1;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.internal.IAnySilentContainer;
-import java.lang.reflect.Field;
-import net.minecraft.server.v1_15_R1.Block;
-import net.minecraft.server.v1_15_R1.BlockBarrel;
-import net.minecraft.server.v1_15_R1.BlockChest;
-import net.minecraft.server.v1_15_R1.BlockChestTrapped;
-import net.minecraft.server.v1_15_R1.BlockEnderChest;
-import net.minecraft.server.v1_15_R1.BlockPosition;
-import net.minecraft.server.v1_15_R1.BlockPropertyChestType;
-import net.minecraft.server.v1_15_R1.BlockShulkerBox;
-import net.minecraft.server.v1_15_R1.ChatMessage;
-import net.minecraft.server.v1_15_R1.Container;
-import net.minecraft.server.v1_15_R1.ContainerChest;
-import net.minecraft.server.v1_15_R1.Containers;
-import net.minecraft.server.v1_15_R1.EntityHuman;
-import net.minecraft.server.v1_15_R1.EntityPlayer;
-import net.minecraft.server.v1_15_R1.EnumChatFormat;
-import net.minecraft.server.v1_15_R1.EnumGamemode;
-import net.minecraft.server.v1_15_R1.IBlockData;
-import net.minecraft.server.v1_15_R1.IChatBaseComponent;
-import net.minecraft.server.v1_15_R1.ITileInventory;
-import net.minecraft.server.v1_15_R1.InventoryEnderChest;
-import net.minecraft.server.v1_15_R1.InventoryLargeChest;
-import net.minecraft.server.v1_15_R1.PlayerInteractManager;
-import net.minecraft.server.v1_15_R1.PlayerInventory;
-import net.minecraft.server.v1_15_R1.TileEntity;
-import net.minecraft.server.v1_15_R1.TileEntityChest;
-import net.minecraft.server.v1_15_R1.TileEntityEnderChest;
-import net.minecraft.server.v1_15_R1.TileEntityLootable;
-import net.minecraft.server.v1_15_R1.TileInventory;
-import net.minecraft.server.v1_15_R1.World;
-import org.bukkit.Material;
-import org.bukkit.Statistic;
-import org.bukkit.block.Barrel;
-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.inventory.InventoryView;
-import org.bukkit.util.BoundingBox;
-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 isAnySilentContainer(@NotNull final org.bukkit.block.Block bukkitBlock) {
-        if (bukkitBlock.getType() == Material.ENDER_CHEST) {
-            return true;
-        }
-        BlockState state = bukkitBlock.getState();
-        return state instanceof org.bukkit.block.Chest
-                || state instanceof org.bukkit.block.ShulkerBox
-                || state instanceof org.bukkit.block.Barrel;
-    }
-
-    @Override
-    public boolean isAnyContainerNeeded(@NotNull final Player p, @NotNull final org.bukkit.block.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 (isBlockedChest(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 isBlockedChest(relative);
-    }
-
-    private boolean isBlockedChest(org.bukkit.block.Block block) {
-        org.bukkit.block.Block relative = block.getRelative(0, 1, 0);
-        return relative.getType().isOccluding()
-                || block.getWorld().getNearbyEntities(BoundingBox.of(relative), entity -> entity instanceof Cat).size() > 0;
-    }
-
-    @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;
-                int rows = enderChest.getSize() / 9;
-                switch (rows) {
-                    case 1:
-                        containers = Containers.GENERIC_9X1;
-                        break;
-                    case 2:
-                        containers = Containers.GENERIC_9X2;
-                        break;
-                    case 3:
-                    default:
-                        containers = Containers.GENERIC_9X3;
-                        break;
-                    case 4:
-                        containers = Containers.GENERIC_9X4;
-                        break;
-                    case 5:
-                        containers = Containers.GENERIC_9X5;
-                        break;
-                    case 6:
-                        containers = Containers.GENERIC_9X6;
-                        break;
-                }
-                return new ContainerChest(containers, containerCounter, playerInventory, enderChest, rows);
-            }, BlockEnderChest.e));
-            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.i(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 (rightChest.lootTable != null || leftChest.lootTable != null) {
-                                player.a(new ChatMessage("Loot not generated! Please disable /silentcontainer.").a(EnumChatFormat.RED), true);
-                                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() {
-                                    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();
-        }
-    }
-
-}
@@ -1,207 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_15_R1;
-
-import com.lishid.openinv.OpenInv;
-import com.lishid.openinv.internal.IPlayerDataManager;
-import com.lishid.openinv.internal.ISpecialInventory;
-import com.mojang.authlib.GameProfile;
-import net.minecraft.server.v1_15_R1.ChatComponentText;
-import net.minecraft.server.v1_15_R1.ChatMessageType;
-import net.minecraft.server.v1_15_R1.Container;
-import net.minecraft.server.v1_15_R1.Containers;
-import net.minecraft.server.v1_15_R1.DimensionManager;
-import net.minecraft.server.v1_15_R1.EntityHuman;
-import net.minecraft.server.v1_15_R1.EntityPlayer;
-import net.minecraft.server.v1_15_R1.MinecraftServer;
-import net.minecraft.server.v1_15_R1.PacketPlayOutChat;
-import net.minecraft.server.v1_15_R1.PacketPlayOutOpenWindow;
-import net.minecraft.server.v1_15_R1.PlayerInteractManager;
-import net.minecraft.server.v1_15_R1.PlayerInventory;
-import org.bukkit.Bukkit;
-import org.bukkit.OfflinePlayer;
-import org.bukkit.Server;
-import org.bukkit.craftbukkit.v1_15_R1.CraftServer;
-import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftContainer;
-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;
-import org.jetbrains.annotations.Nullable;
-
-public class PlayerDataManager implements IPlayerDataManager {
-
-    @NotNull
-    public static 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;
-    }
-
-    @Nullable
-    @Override
-    public 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
-        GameProfile profile = new GameProfile(offline.getUniqueId(), offline.getName());
-        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
-        EntityPlayer entity = new EntityPlayer(server, server.getWorldServer(DimensionManager.OVERWORLD), profile,
-                new PlayerInteractManager(server.getWorldServer(DimensionManager.OVERWORLD)));
-
-        // Get the bukkit entity
-        Player target = entity.getBukkitEntity();
-        if (target != null) {
-            // Load data
-            target.loadData();
-        }
-        // Return the entity
-        return target;
-    }
-
-    @Nullable
-	@Override
-    public InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
-
-        EntityPlayer nmsPlayer = getHandle(player);
-
-        if (nmsPlayer.playerConnection == null) {
-            return null;
-        }
-
-        String title;
-        if (inventory instanceof SpecialEnderChest) {
-            HumanEntity owner = (HumanEntity) ((SpecialEnderChest) inventory).getBukkitOwner();
-            title = OpenInv.getPlugin(OpenInv.class).getLocalizedMessage(player, "container.enderchest");
-            if (title == null) {
-                title = "%player%'s Ender Chest";
-            }
-            //noinspection ConstantConditions - owner name can be null if loaded by UUID
-            title = title.replace("%player%", owner.getName() != null ? owner.getName() : owner.getUniqueId().toString());
-        } else if (inventory instanceof SpecialPlayerInventory) {
-            EntityHuman owner = ((PlayerInventory) inventory).player;
-            title = OpenInv.getPlugin(OpenInv.class).getLocalizedMessage(player, "container.player");
-            if (title == null) {
-                title = "%player%'s Inventory";
-            }
-            title = title.replace("%player%", owner.getName() != null ? owner.getName() : owner.getUniqueID().toString());
-        } else {
-            return player.openInventory(inventory.getBukkitInventory());
-        }
-
-        String finalTitle = title;
-        Container container = new CraftContainer(new InventoryView() {
-            @Override
-            public @NotNull Inventory getTopInventory() {
-                return inventory.getBukkitInventory();
-            }
-            @Override
-            public @NotNull Inventory getBottomInventory() {
-                return player.getInventory();
-            }
-            @Override
-            public @NotNull HumanEntity getPlayer() {
-                return player;
-            }
-            @Override
-            public @NotNull InventoryType getType() {
-                return inventory.getBukkitInventory().getType();
-            }
-            @Override
-            public @NotNull String getTitle() {
-                return finalTitle;
-            }
-        }, nmsPlayer, nmsPlayer.nextContainerCounter()) {
-            @Override
-            public Containers<?> getType() {
-                switch (inventory.getBukkitInventory().getSize()) {
-                    case 9:
-                        return Containers.GENERIC_9X1;
-                    case 18:
-                        return Containers.GENERIC_9X2;
-                    case 27:
-                    default:
-                        return Containers.GENERIC_9X3;
-                    case 36:
-                        return Containers.GENERIC_9X4;
-                    case 41: // PLAYER
-                    case 45:
-                        return Containers.GENERIC_9X5;
-                    case 54:
-                        return Containers.GENERIC_9X6;
-                }
-            }
-        };
-
-        container.setTitle(new ChatComponentText(title));
-        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();
-
-    }
-
-    @Override
-    public void sendSystemMessage(@NotNull Player player, @NotNull String message) {
-        int newline = message.indexOf('\n');
-        if (newline != -1) {
-            // No newlines in action bar chat.
-            message = message.substring(0, newline);
-        }
-
-        if (message.isEmpty()) {
-            return;
-        }
-
-        EntityPlayer nmsPlayer = getHandle(player);
-
-        // For action bar chat, color codes are still supported but JSON text color is not allowed. Do not convert text.
-        if (nmsPlayer.playerConnection != null) {
-            nmsPlayer.playerConnection.sendPacket(new PacketPlayOutChat(new ChatComponentText(message), ChatMessageType.GAME_INFO));
-        }
-    }
-
-}
@@ -1,255 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_15_R1;
-
-import com.lishid.openinv.internal.ISpecialEnderChest;
-import java.util.List;
-import net.minecraft.server.v1_15_R1.AutoRecipeStackManager;
-import net.minecraft.server.v1_15_R1.ContainerUtil;
-import net.minecraft.server.v1_15_R1.EntityHuman;
-import net.minecraft.server.v1_15_R1.EntityPlayer;
-import net.minecraft.server.v1_15_R1.IInventoryListener;
-import net.minecraft.server.v1_15_R1.InventoryEnderChest;
-import net.minecraft.server.v1_15_R1.ItemStack;
-import net.minecraft.server.v1_15_R1.NonNullList;
-import org.bukkit.Location;
-import org.bukkit.craftbukkit.v1_15_R1.entity.CraftHumanEntity;
-import org.bukkit.craftbukkit.v1_15_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 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 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 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.a;
-    }
-
-    @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.a;
-            }
-
-            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.a;
-                    }
-                }
-            }
-        }
-
-        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.a;
-        } else {
-            this.items.set(i, ItemStack.a);
-            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 isNotEmpty() {
-
-        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);
-        }
-
-    }
-
-}
@@ -1,759 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_15_R1;
-
-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_15_R1.AutoRecipeStackManager;
-import net.minecraft.server.v1_15_R1.ChatMessage;
-import net.minecraft.server.v1_15_R1.ContainerUtil;
-import net.minecraft.server.v1_15_R1.CrashReport;
-import net.minecraft.server.v1_15_R1.CrashReportSystemDetails;
-import net.minecraft.server.v1_15_R1.EntityHuman;
-import net.minecraft.server.v1_15_R1.EntityPlayer;
-import net.minecraft.server.v1_15_R1.EnumItemSlot;
-import net.minecraft.server.v1_15_R1.IBlockData;
-import net.minecraft.server.v1_15_R1.IChatBaseComponent;
-import net.minecraft.server.v1_15_R1.Item;
-import net.minecraft.server.v1_15_R1.ItemArmor;
-import net.minecraft.server.v1_15_R1.ItemStack;
-import net.minecraft.server.v1_15_R1.NBTTagCompound;
-import net.minecraft.server.v1_15_R1.NBTTagList;
-import net.minecraft.server.v1_15_R1.NonNullList;
-import net.minecraft.server.v1_15_R1.PacketPlayOutSetSlot;
-import net.minecraft.server.v1_15_R1.PlayerInventory;
-import net.minecraft.server.v1_15_R1.ReportedException;
-import net.minecraft.server.v1_15_R1.World;
-import org.bukkit.Location;
-import org.bukkit.craftbukkit.v1_15_R1.entity.CraftHumanEntity;
-import org.bukkit.craftbukkit.v1_15_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 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.a;
-        }
-
-        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.a : 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 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.a;
-        }
-
-        return list.get(i).isEmpty() ? ItemStack.a : 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.a;
-        }
-
-        if (!list.get(i).isEmpty()) {
-            ItemStack itemstack = list.get(i);
-
-            list.set(i, ItemStack.a);
-            return itemstack;
-        }
-
-        return ItemStack.a;
-    }
-
-    @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.a;
-    }
-
-    private boolean a(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.a(itemstack, itemstack1)) {
-                remains -= (itemstack1.getMaxStackSize() < this.getMaxStackSize() ? itemstack1.getMaxStackSize() : this.getMaxStackSize()) - itemstack1.getCount();
-            }
-
-            if (remains <= 0) {
-                return itemstack.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) {
-        int j = 0;
-
-        int k;
-        for (k = 0; k < this.getSize(); ++k) {
-            ItemStack itemstack = this.getItem(k);
-            if (!itemstack.isEmpty() && predicate.test(itemstack)) {
-                int l = i <= 0 ? itemstack.getCount() : Math.min(i - j, itemstack.getCount());
-                j += l;
-                if (i != 0) {
-                    itemstack.subtract(l);
-                    if (itemstack.isEmpty()) {
-                        this.setItem(k, ItemStack.a);
-                    }
-
-                    if (i > 0 && j >= i) {
-                        return j;
-                    }
-                }
-            }
-        }
-
-        if (!this.getCarried().isEmpty() && predicate.test(this.getCarried())) {
-            k = i <= 0 ? this.getCarried().getCount() : Math.min(i - j, this.getCarried().getCount());
-            j += k;
-            if (i != 0) {
-                this.getCarried().subtract(k);
-                if (this.getCarried().isEmpty()) {
-                    this.setCarried(ItemStack.a);
-                }
-
-                if (i > 0 && j >= i) {
-                    return j;
-                }
-            }
-        }
-
-        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(itemstack.getTag().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) {
-            return j;
-        } else {
-            j -= k;
-            itemstack1.add(k);
-            itemstack1.d(5);
-            return j;
-        }
-    }
-
-    @Override
-    public int firstPartial(ItemStack itemstack) {
-        if (this.a(this.getItem(this.itemInHandIndex), itemstack)) {
-            return this.itemInHandIndex;
-        } else if (this.a(this.getItem(40), itemstack)) {
-            return 40;
-        } else {
-            for (int i = 0; i < this.items.size(); ++i) {
-                if (this.a(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.a);
-                    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 isNotEmpty() {
-        Iterator iterator = this.items.iterator();
-
-        ItemStack itemstack;
-        while (iterator.hasNext()) {
-            itemstack = (ItemStack)iterator.next();
-            if (!itemstack.isEmpty()) {
-                return false;
-            }
-        }
-
-        iterator = this.armor.iterator();
-
-        while (iterator.hasNext()) {
-            itemstack = (ItemStack)iterator.next();
-            if (!itemstack.isEmpty()) {
-                return false;
-            }
-        }
-
-        iterator = this.extraSlots.iterator();
-
-        while (iterator.hasNext()) {
-            itemstack = (ItemStack)iterator.next();
-            if (!itemstack.isEmpty()) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    @Nullable
-    @Override
-    public IChatBaseComponent getCustomName() {
-        return null;
-    }
-
-    @Override
-    public boolean b(IBlockData iblockdata) {
-        return this.getItem(this.itemInHandIndex).canDestroySpecialBlock(iblockdata);
-    }
-
-    @Override
-    public void a(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 (itemstack.getItem() instanceof ItemArmor) {
-                    itemstack.damage((int) f, this.player, (entityhuman) -> entityhuman.c(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.a);
-                    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);
-        }
-    }
-
-}
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright (C) 2011-2020 lishid. All rights reserved.
+  ~ Copyright (C) 2011-2023 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
@@ -20,56 +20,62 @@
  <modelVersion>4.0.0</modelVersion>

  <parent>
+    <artifactId>openinvparent</artifactId>
    <groupId>com.lishid</groupId>
-    <artifactId>openinvinternal</artifactId>
-    <version>4.1.1-SNAPSHOT</version>
+    <relativePath>../../pom.xml</relativePath>
+    <version>4.4.0</version>
  </parent>

-  <artifactId>openinvadapter1_14_R1</artifactId>
-  <name>OpenInvAdapter1_14_R1</name>
+  <artifactId>openinvadapter1_19_R3</artifactId>
+  <name>OpenInvAdapter1_19_R3</name>
+
+  <properties>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
+    <spigot.version>1.19.4-R0.1-SNAPSHOT</spigot.version>
+  </properties>

  <dependencies>
    <dependency>
      <groupId>org.spigotmc</groupId>
+      <artifactId>spigot-api</artifactId>
+      <version>${spigot.version}</version>
+    </dependency>
+    <dependency>
      <artifactId>spigot</artifactId>
-      <version>1.14.3-R0.1-SNAPSHOT</version>
+      <groupId>org.spigotmc</groupId>
+      <scope>provided</scope>
+      <version>${spigot.version}</version>
+      <classifier>remapped-mojang</classifier>
+    </dependency>
+    <dependency>
+      <artifactId>openinvapi</artifactId>
+      <groupId>com.lishid</groupId>
      <scope>provided</scope>
    </dependency>
    <dependency>
-      <groupId>com.lishid</groupId>
      <artifactId>openinvplugincore</artifactId>
-      <version>4.1.1-SNAPSHOT</version>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>annotations</artifactId>
+      <groupId>org.jetbrains</groupId>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-shade-plugin</artifactId>
-        <version>3.2.2</version>
-        <configuration>
-          <minimizeJar>true</minimizeJar>
-        </configuration>
-        <executions>
-          <execution>
-            <phase>package</phase>
-            <goals>
-              <goal>shade</goal>
-            </goals>
-          </execution>
-        </executions>
      </plugin>
-
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>net.md-5</groupId>
+        <artifactId>specialsource-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>

-</project>
+</project>
@@ -0,0 +1,244 @@
+/*
+ * Copyright (C) 2011-2023 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_19_R3;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.internal.IAnySilentContainer;
+import com.lishid.openinv.util.ReflectionHelper;
+import java.lang.reflect.Field;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import net.minecraft.core.BlockPos;
+import net.minecraft.network.chat.Component;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.level.ServerPlayerGameMode;
+import net.minecraft.world.MenuProvider;
+import net.minecraft.world.SimpleMenuProvider;
+import net.minecraft.world.entity.monster.Shulker;
+import net.minecraft.world.inventory.ChestMenu;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.inventory.PlayerEnderChestContainer;
+import net.minecraft.world.level.GameType;
+import net.minecraft.world.level.block.BarrelBlock;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.ChestBlock;
+import net.minecraft.world.level.block.ShulkerBoxBlock;
+import net.minecraft.world.level.block.TrappedChestBlock;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.entity.EnderChestBlockEntity;
+import net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity;
+import net.minecraft.world.level.block.entity.ShulkerBoxBlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.phys.AABB;
+import org.bukkit.Bukkit;
+import org.bukkit.GameMode;
+import org.bukkit.Material;
+import org.bukkit.Statistic;
+import org.bukkit.block.ShulkerBox;
+import org.bukkit.craftbukkit.v1_19_R3.CraftWorld;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class AnySilentContainer implements IAnySilentContainer {
+
+    private @Nullable Field serverPlayerGameModeGameType;
+
+    public AnySilentContainer() {
+        try {
+            try {
+                this.serverPlayerGameModeGameType = ServerPlayerGameMode.class.getDeclaredField("b");
+                this.serverPlayerGameModeGameType.setAccessible(true);
+            } catch (NoSuchFieldException e) {
+                Logger logger = OpenInv.getPlugin(OpenInv.class).getLogger();
+                logger.warning("ServerPlayerGameMode#gameModeForPlayer's obfuscated name has changed!");
+                logger.warning("Please report this at https://github.com/Jikoo/OpenInv/issues");
+                logger.warning("Attempting to fall through using reflection. Please verify that SilentContainer does not fail.");
+                // N.B. gameModeForPlayer is (for now) declared before previousGameModeForPlayer so silent shouldn't break.
+                this.serverPlayerGameModeGameType = ReflectionHelper.grabFieldByType(ServerPlayerGameMode.class, GameType.class);
+            }
+        } catch (SecurityException e) {
+            Logger logger = OpenInv.getPlugin(OpenInv.class).getLogger();
+            logger.warning("Unable to directly write player game mode! SilentContainer will fail.");
+            logger.log(Level.WARNING, "Error obtaining GameType field", e);
+        }
+    }
+
+    @Override
+    public boolean isShulkerBlocked(@NotNull ShulkerBox shulkerBox) {
+        org.bukkit.World bukkitWorld = shulkerBox.getWorld();
+        if (!(bukkitWorld instanceof CraftWorld)) {
+            bukkitWorld = Bukkit.getWorld(bukkitWorld.getUID());
+        }
+
+        if (!(bukkitWorld instanceof CraftWorld craftWorld)) {
+            Exception exception = new IllegalStateException("AnySilentContainer access attempted on an unknown world!");
+            OpenInv.getPlugin(OpenInv.class).getLogger().log(Level.WARNING, exception.getMessage(), exception);
+            return false;
+        }
+
+        final ServerLevel world = craftWorld.getHandle();
+        final BlockPos blockPosition = new BlockPos(shulkerBox.getX(), shulkerBox.getY(), shulkerBox.getZ());
+        final BlockEntity tile = world.getBlockEntity(blockPosition);
+
+        if (!(tile instanceof ShulkerBoxBlockEntity shulkerBoxBlockEntity)
+                || shulkerBoxBlockEntity.getAnimationStatus() != ShulkerBoxBlockEntity.AnimationStatus.CLOSED) {
+            return false;
+        }
+
+        BlockState blockState = world.getBlockState(blockPosition);
+
+        // See net.minecraft.world.level.block.ShulkerBoxBlock#canOpen
+        AABB boundingBox = Shulker.getProgressDeltaAabb(blockState.getValue(ShulkerBoxBlock.FACING), 0.0F, 0.5F)
+                .move(blockPosition)
+                .deflate(1.0E-6D);
+        return !world.noCollision(boundingBox);
+    }
+
+    @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;
+        }
+
+        ServerPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        final ServerLevel level = player.getLevel();
+        final BlockPos blockPos = new BlockPos(bukkitBlock.getX(), bukkitBlock.getY(), bukkitBlock.getZ());
+        final BlockEntity blockEntity = level.getBlockEntity(blockPos);
+
+        if (blockEntity == null) {
+            return false;
+        }
+
+        if (blockEntity instanceof EnderChestBlockEntity enderChestTile) {
+            // Anychest ender chest. See net.minecraft.world.level.block.EnderChestBlock
+            PlayerEnderChestContainer enderChest = player.getEnderChestInventory();
+            enderChest.setActiveChest(enderChestTile);
+            player.openMenu(new SimpleMenuProvider((containerCounter, playerInventory, ignored) -> {
+                MenuType<?> containers = PlayerDataManager.getContainers(enderChest.getContainerSize());
+                int rows = enderChest.getContainerSize() / 9;
+                return new ChestMenu(containers, containerCounter, playerInventory, enderChest, rows);
+            }, Component.translatable(("container.enderchest"))));
+            bukkitPlayer.incrementStatistic(Statistic.ENDERCHEST_OPENED);
+            return true;
+        }
+
+        if (!(blockEntity instanceof MenuProvider menuProvider)) {
+            return false;
+        }
+
+        BlockState blockState = level.getBlockState(blockPos);
+        Block block = blockState.getBlock();
+
+        if (block instanceof ChestBlock chestBlock) {
+
+            // boolean flag: do not check if chest is blocked
+            menuProvider = chestBlock.getMenuProvider(blockState, level, blockPos, true);
+
+            if (menuProvider == null) {
+                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                return false;
+            }
+
+            if (block instanceof TrappedChestBlock) {
+                bukkitPlayer.incrementStatistic(Statistic.TRAPPED_CHEST_TRIGGERED);
+            } else {
+                bukkitPlayer.incrementStatistic(Statistic.CHEST_OPENED);
+            }
+        }
+
+        if (block instanceof ShulkerBoxBlock) {
+            bukkitPlayer.incrementStatistic(Statistic.SHULKER_BOX_OPENED);
+        }
+
+        if (block instanceof BarrelBlock) {
+            bukkitPlayer.incrementStatistic(Statistic.OPEN_BARREL);
+        }
+
+        // AnyChest only - SilentChest not active, container unsupported, or unnecessary.
+        if (!silentchest || player.gameMode.getGameModeForPlayer() == GameType.SPECTATOR) {
+            player.openMenu(menuProvider);
+            return true;
+        }
+
+        // SilentChest requires access to setting players' game mode directly.
+        if (this.serverPlayerGameModeGameType == null) {
+            return false;
+        }
+
+        if (blockEntity instanceof RandomizableContainerBlockEntity lootable) {
+            if (lootable.lootTable != null) {
+                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                return false;
+            }
+        }
+
+        GameType gameType = player.gameMode.getGameModeForPlayer();
+        this.forceGameType(player, GameType.SPECTATOR);
+        player.openMenu(menuProvider);
+        this.forceGameType(player, gameType);
+        return true;
+    }
+
+    @Override
+    public void deactivateContainer(@NotNull final Player bukkitPlayer) {
+        if (this.serverPlayerGameModeGameType == null || bukkitPlayer.getGameMode() == GameMode.SPECTATOR) {
+            return;
+        }
+
+        ServerPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        // Force game mode change without informing plugins or players.
+        // Regular game mode set calls GameModeChangeEvent and is cancellable.
+        GameType gameType = player.gameMode.getGameModeForPlayer();
+        this.forceGameType(player, GameType.SPECTATOR);
+
+        // ServerPlayer#closeContainer cannot be called without entering an
+        // infinite loop because this method is called during inventory close.
+        // From ServerPlayer#closeContainer -> CraftEventFactory#handleInventoryCloseEvent
+        player.containerMenu.transferTo(player.inventoryMenu, player.getBukkitEntity());
+        // From ServerPlayer#closeContainer
+        player.doCloseContainer();
+        // Regular inventory close will handle the rest - packet sending, etc.
+
+        // Revert forced game mode.
+        this.forceGameType(player, gameType);
+    }
+
+    private void forceGameType(final ServerPlayer player, final GameType gameMode) {
+        if (this.serverPlayerGameModeGameType == null) {
+            // No need to warn repeatedly, error on startup and lack of function should be enough.
+            return;
+        }
+        try {
+            this.serverPlayerGameModeGameType.setAccessible(true);
+            this.serverPlayerGameModeGameType.set(player.gameMode, gameMode);
+        } catch (IllegalArgumentException | IllegalAccessException e) {
+            e.printStackTrace();
+        }
+    }
+
+}
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2011-2023 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_19_R3;
+
+import java.io.File;
+import net.minecraft.Util;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtIo;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.storage.PlayerDataStorage;
+import org.apache.logging.log4j.LogManager;
+import org.bukkit.craftbukkit.v1_19_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+
+public class OpenPlayer extends CraftPlayer {
+
+    public OpenPlayer(CraftServer server, ServerPlayer entity) {
+        super(server, entity);
+    }
+
+    @Override
+    public void loadData() {
+        // See CraftPlayer#loadData
+        CompoundTag loaded = this.server.getHandle().playerIo.load(this.getHandle());
+        if (loaded != null) {
+            getHandle().readAdditionalSaveData(loaded);
+        }
+    }
+
+    @Override
+    public void saveData() {
+        ServerPlayer player = this.getHandle();
+        // See net.minecraft.world.level.storage.PlayerDataStorage#save(EntityHuman)
+        try {
+            PlayerDataStorage worldNBTStorage = player.server.getPlayerList().playerIo;
+
+            CompoundTag playerData = player.saveWithoutId(new CompoundTag());
+            setExtraData(playerData);
+
+            if (!isOnline()) {
+                // Special case: save old vehicle data
+                CompoundTag oldData = worldNBTStorage.load(player);
+
+                if (oldData != null && oldData.contains("RootVehicle", 10)) {
+                    // See net.minecraft.server.PlayerList#a(NetworkManager, EntityPlayer) and net.minecraft.server.EntityPlayer#b(NBTTagCompound)
+                    playerData.put("RootVehicle", oldData.getCompound("RootVehicle"));
+                }
+            }
+
+            File file = File.createTempFile(player.getStringUUID() + "-", ".dat", worldNBTStorage.getPlayerDir());
+            NbtIo.writeCompressed(playerData, file);
+            File file1 = new File(worldNBTStorage.getPlayerDir(), player.getStringUUID() + ".dat");
+            File file2 = new File(worldNBTStorage.getPlayerDir(), player.getStringUUID() + ".dat_old");
+            Util.safeReplaceFile(file1, file, file2);
+        } catch (Exception e) {
+            LogManager.getLogger().warn("Failed to save player data for {}: {}", player.getScoreboardName(), e);
+        }
+    }
+
+}
@@ -0,0 +1,265 @@
+/*
+ * Copyright (C) 2011-2023 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_19_R3;
+
+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.Logger;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.phys.Vec3;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.Server;
+import org.bukkit.craftbukkit.v1_19_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_19_R3.CraftWorld;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R3.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_19_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) {
+            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(java.util.logging.Level.WARNING, e.getMessage(), e);
+            bukkitEntity = null;
+        }
+    }
+
+    public static @NotNull ServerPlayer getHandle(final Player player) {
+        if (player instanceof CraftPlayer) {
+            return ((CraftPlayer) player).getHandle();
+        }
+
+        Server server = player.getServer();
+        ServerPlayer nmsPlayer = null;
+
+        if (server instanceof CraftServer) {
+            nmsPlayer = ((CraftServer) server).getHandle().getPlayer(player.getUniqueId());
+        }
+
+        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.players.PlayerList#canPlayerLogin
+        // and net.minecraft.server.network.ServerLoginPacketListenerImpl#handleHello
+        GameProfile profile = new GameProfile(offline.getUniqueId(),
+                offline.getName() != null ? offline.getName() : offline.getUniqueId().toString());
+        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
+        ServerLevel worldServer = server.getLevel(Level.OVERWORLD);
+
+        if (worldServer == null) {
+            return null;
+        }
+
+        ServerPlayer entity = new ServerPlayer(server, worldServer, profile);
+
+        // Stop listening for advancement progression - if this is not cleaned up, loading causes a memory leak.
+        entity.getAdvancements().stopListening();
+
+        try {
+            injectPlayer(entity);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+
+        // Load data. This also reads basic data into the player.
+        // See CraftPlayer#loadData
+        CompoundTag loadedData = server.getPlayerList().playerIo.load(entity);
+
+        if (loadedData == null) {
+            // Exceptions with loading are logged by Mojang.
+            return null;
+        }
+
+        // Also read "extra" data.
+        entity.readAdditionalSaveData(loadedData);
+
+        if (entity.level == null) {
+            // Paper: Move player to spawn
+            // SPIGOT-7340: Cannot call ServerPlayer#spawnIn with a null world
+            ServerLevel level = null;
+            Vec3 position = null;
+            if (entity.getRespawnDimension() != null) {
+                level = entity.server.getLevel(entity.getRespawnDimension());
+                if (level != null && entity.getRespawnPosition() != null) {
+                    position = net.minecraft.world.entity.player.Player.findRespawnPositionAndUseSpawnBlock(level, entity.getRespawnPosition(), entity.getRespawnAngle(), false, false).orElse(null);
+                }
+            }
+            if (level == null || position == null) {
+                level = ((CraftWorld) server.server.getWorlds().get(0)).getHandle();
+                position = Vec3.atCenterOf(level.getSharedSpawnPos());
+            }
+            entity.level = level;
+            entity.setPos(position);
+        }
+
+        // Return the Bukkit entity.
+        return entity.getBukkitEntity();
+    }
+
+    void injectPlayer(ServerPlayer 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 {
+            ServerPlayer nmsPlayer = getHandle(player);
+            if (nmsPlayer.getBukkitEntity() instanceof OpenPlayer openPlayer) {
+                return openPlayer;
+            }
+            injectPlayer(nmsPlayer);
+            return nmsPlayer.getBukkitEntity();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+            return player;
+        }
+    }
+
+    @Nullable
+    @Override
+    public InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
+
+        ServerPlayer nmsPlayer = getHandle(player);
+
+        if (nmsPlayer.connection == null) {
+            return null;
+        }
+
+        InventoryView view = getView(player, inventory);
+
+        if (view == null) {
+            return player.openInventory(inventory.getBukkitInventory());
+        }
+
+        AbstractContainerMenu container = new CraftContainer(view, nmsPlayer, nmsPlayer.nextContainerCounter()) {
+            @Override
+            public MenuType<?> getType() {
+                return getContainers(inventory.getBukkitInventory().getSize());
+            }
+        };
+
+        container.setTitle(Component.literal(view.getTitle()));
+        container = CraftEventFactory.callInventoryOpenEvent(nmsPlayer, container);
+
+        if (container == null) {
+            return null;
+        }
+
+        nmsPlayer.connection.send(new ClientboundOpenScreenPacket(container.containerId, container.getType(),
+                Component.literal(container.getBukkitView().getTitle())));
+        nmsPlayer.containerMenu = 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 MenuType<?> getContainers(int inventorySize) {
+
+        return switch (inventorySize) {
+            case 9 -> MenuType.GENERIC_9x1;
+            case 18 -> MenuType.GENERIC_9x2;
+            case 36 -> MenuType.GENERIC_9x4; // PLAYER
+            case 41, 45 -> MenuType.GENERIC_9x5;
+            case 54 -> MenuType.GENERIC_9x6;
+            default -> MenuType.GENERIC_9x3; // Default 27-slot inventory
+        };
+    }
+
+    @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;
+    }
+
+}
@@ -0,0 +1,350 @@
+/*
+ * Copyright (C) 2011-2023 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_19_R3;
+
+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.CompoundTag;
+import net.minecraft.nbt.ListTag;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.ContainerHelper;
+import net.minecraft.world.ContainerListener;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.entity.player.StackedContents;
+import net.minecraft.world.inventory.PlayerEnderChestContainer;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.entity.EnderChestBlockEntity;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialEnderChest extends PlayerEnderChestContainer implements ISpecialEnderChest {
+
+    private final CraftInventory inventory;
+    private ServerPlayer owner;
+    private NonNullList<ItemStack> items;
+    private boolean playerOnline;
+
+    public SpecialEnderChest(final org.bukkit.entity.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.getEnderChestInventory().items;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return inventory;
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull final org.bukkit.entity.Player player) {
+        if (this.playerOnline) {
+            return;
+        }
+
+        ServerPlayer offlinePlayer = this.owner;
+        ServerPlayer onlinePlayer = PlayerDataManager.getHandle(player);
+
+        // Set owner to new player.
+        this.owner = onlinePlayer;
+
+        // Set player's ender chest contents to our modified contents.
+        PlayerEnderChestContainer onlineEnderChest = onlinePlayer.getEnderChestInventory();
+        for (int i = 0; i < onlineEnderChest.getContainerSize(); ++i) {
+            onlineEnderChest.setItem(i, this.items.get(i));
+        }
+
+        // Set our item array to the new inventory's array.
+        this.items = onlineEnderChest.items;
+
+        // Add viewers to new inventory.
+        onlineEnderChest.transaction.addAll(offlinePlayer.getEnderChestInventory().transaction);
+
+        this.playerOnline = true;
+    }
+
+    @Override
+    public @NotNull org.bukkit.entity.Player getPlayer() {
+        return owner.getBukkitEntity();
+    }
+
+    @Override
+    public void setChanged() {
+        this.owner.getEnderChestInventory().setChanged();
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.items;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.owner.getEnderChestInventory().onOpen(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.owner.getEnderChestInventory().onClose(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.owner.getEnderChestInventory().getViewers();
+    }
+
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+
+    @Override
+    public void setActiveChest(EnderChestBlockEntity enderChest) {
+        this.owner.getEnderChestInventory().setActiveChest(enderChest);
+    }
+
+    @Override
+    public boolean isActiveChest(EnderChestBlockEntity enderChest) {
+        return this.owner.getEnderChestInventory().isActiveChest(enderChest);
+    }
+
+    @Override
+    public int getMaxStackSize() {
+        return this.owner.getEnderChestInventory().getMaxStackSize();
+    }
+
+    @Override
+    public void setMaxStackSize(int i) {
+        this.owner.getEnderChestInventory().setMaxStackSize(i);
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.owner.getEnderChestInventory().getOwner();
+    }
+
+    @Override
+    public @Nullable Location getLocation() {
+        return null;
+    }
+
+    @Override
+    public void addListener(ContainerListener listener) {
+        this.owner.getEnderChestInventory().addListener(listener);
+    }
+
+    @Override
+    public void removeListener(ContainerListener listener) {
+        this.owner.getEnderChestInventory().removeListener(listener);
+    }
+
+    @Override
+    public ItemStack getItem(int i) {
+        return i >= 0 && i < this.items.size() ? this.items.get(i) : ItemStack.EMPTY;
+    }
+
+    @Override
+    public ItemStack removeItem(int i, int j) {
+        ItemStack itemstack = ContainerHelper.removeItem(this.items, i, j);
+        if (!itemstack.isEmpty()) {
+            this.setChanged();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public ItemStack addItem(ItemStack itemstack) {
+        ItemStack localItem = itemstack.copy();
+        this.moveItemToOccupiedSlotsWithSameType(localItem);
+        if (localItem.isEmpty()) {
+            return ItemStack.EMPTY;
+        } else {
+            this.moveItemToEmptySlots(localItem);
+            return localItem.isEmpty() ? ItemStack.EMPTY : localItem;
+        }
+    }
+
+    @Override
+    public boolean canAddItem(ItemStack itemstack) {
+        for (ItemStack itemstack1 : this.items) {
+            if (itemstack1.isEmpty() || ItemStack.isSameItemSameTags(itemstack1, itemstack) && itemstack1.getCount() < itemstack1.getMaxStackSize()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private void moveItemToEmptySlots(ItemStack itemstack) {
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            ItemStack localItem = this.getItem(i);
+            if (localItem.isEmpty()) {
+                this.setItem(i, itemstack.copy());
+                itemstack.setCount(0);
+                return;
+            }
+        }
+    }
+
+    private void moveItemToOccupiedSlotsWithSameType(ItemStack itemstack) {
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            ItemStack localItem = this.getItem(i);
+            if (ItemStack.isSameItemSameTags(localItem, itemstack)) {
+                this.moveItemsBetweenStacks(itemstack, localItem);
+                if (itemstack.isEmpty()) {
+                    return;
+                }
+            }
+        }
+    }
+
+    private void moveItemsBetweenStacks(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.grow(j);
+            itemstack.shrink(j);
+            this.setChanged();
+        }
+    }
+
+    @Override
+    public ItemStack removeItemNoUpdate(int i) {
+        ItemStack itemstack = this.items.get(i);
+        if (itemstack.isEmpty()) {
+            return ItemStack.EMPTY;
+        } else {
+            this.items.set(i, ItemStack.EMPTY);
+            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.setChanged();
+    }
+
+    @Override
+    public int getContainerSize() {
+        return this.owner.getEnderChestInventory().getContainerSize();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return this.items.stream().allMatch(ItemStack::isEmpty);
+    }
+
+    @Override
+    public void startOpen(Player player) {
+    }
+
+    @Override
+    public void stopOpen(Player player) {
+    }
+
+    @Override
+    public boolean canPlaceItem(int i, ItemStack itemstack) {
+        return true;
+    }
+
+    @Override
+    public void clearContent() {
+        this.items.clear();
+        this.setChanged();
+    }
+
+    @Override
+    public void fillStackedContents(StackedContents stackedContents) {
+        for (ItemStack itemstack : this.items) {
+            stackedContents.accountStack(itemstack);
+        }
+
+    }
+
+    @Override
+    public List<ItemStack> removeAllItems() {
+        List<ItemStack> list = this.items.stream().filter(Predicate.not(ItemStack::isEmpty)).collect(Collectors.toList());
+        this.clearContent();
+        return list;
+    }
+
+    @Override
+    public ItemStack removeItemType(Item item, int i) {
+        ItemStack itemstack = new ItemStack(item, 0);
+
+        for(int j = this.getContainerSize() - 1; j >= 0; --j) {
+            ItemStack localItem = this.getItem(j);
+            if (localItem.getItem().equals(item)) {
+                int k = i - itemstack.getCount();
+                ItemStack splitItem = localItem.split(k);
+                itemstack.grow(splitItem.getCount());
+                if (itemstack.getCount() == i) {
+                    break;
+                }
+            }
+        }
+
+        if (!itemstack.isEmpty()) {
+            this.setChanged();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public String toString() {
+        return this.items.stream().filter((itemStack) -> !itemStack.isEmpty()).toList().toString();
+    }
+
+    @Override
+    public void fromTag(ListTag listTag) {
+        for (int i = 0; i < this.getContainerSize(); ++i) {
+            this.setItem(i, ItemStack.EMPTY);
+        }
+
+        for (int i = 0; i < listTag.size(); ++i) {
+            CompoundTag compoundTag = listTag.getCompound(i);
+            int j = compoundTag.getByte("Slot") & 255;
+            if (j < this.getContainerSize()) {
+                this.setItem(j, ItemStack.of(compoundTag));
+            }
+        }
+
+    }
+
+}
@@ -0,0 +1,806 @@
+/*
+ * Copyright (C) 2011-2023 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_19_R3;
+
+import com.google.common.collect.ImmutableList;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import net.minecraft.CrashReport;
+import net.minecraft.CrashReportCategory;
+import net.minecraft.ReportedException;
+import net.minecraft.core.NonNullList;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.ListTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.tags.DamageTypeTags;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.Container;
+import net.minecraft.world.ContainerHelper;
+import net.minecraft.world.damagesource.DamageSource;
+import net.minecraft.world.entity.EquipmentSlot;
+import net.minecraft.world.entity.player.Inventory;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.entity.player.StackedContents;
+import net.minecraft.world.item.ArmorItem;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialPlayerInventory extends Inventory implements ISpecialPlayerInventory {
+
+    private final CraftInventory inventory;
+    private boolean playerOnline;
+    private Player player;
+    private NonNullList<ItemStack> items;
+    private NonNullList<ItemStack> armor;
+    private NonNullList<ItemStack> offhand;
+    private List<NonNullList<ItemStack>> compartments;
+
+    public SpecialPlayerInventory(@NotNull org.bukkit.entity.Player bukkitPlayer, @NotNull Boolean online) {
+        super(PlayerDataManager.getHandle(bukkitPlayer));
+        this.inventory = new CraftInventory(this);
+        this.playerOnline = online;
+        this.player = super.player;
+        this.selected = player.getInventory().selected;
+        this.items = this.player.getInventory().items;
+        this.armor = this.player.getInventory().armor;
+        this.offhand = this.player.getInventory().offhand;
+        this.compartments = ImmutableList.of(this.items, this.armor, this.offhand);
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull org.bukkit.entity.Player player) {
+        if (this.playerOnline) {
+            return;
+        }
+
+        Player offlinePlayer = this.player;
+        Player onlinePlayer = PlayerDataManager.getHandle(player);
+        onlinePlayer.getInventory().transaction.addAll(this.transaction);
+
+        // Set owner to new player.
+        this.player = onlinePlayer;
+
+        // Set player's inventory contents to our modified contents.
+        Inventory onlineInventory = onlinePlayer.getInventory();
+        for (int i = 0; i < getContainerSize(); ++i) {
+            onlineInventory.setItem(i, getRawItem(i));
+        }
+        onlineInventory.selected = this.selected;
+
+        // Set our item arrays to the new inventory's arrays.
+        this.items = onlineInventory.items;
+        this.armor = onlineInventory.armor;
+        this.offhand = onlineInventory.offhand;
+        this.compartments = ImmutableList.of(this.items, this.armor, this.offhand);
+
+        // Add existing viewers to new viewer list.
+        Inventory offlineInventory = offlinePlayer.getInventory();
+        // Remove self from listing - player is always a viewer of their own inventory, prevent duplicates.
+        offlineInventory.transaction.remove(offlinePlayer.getBukkitEntity());
+        onlineInventory.transaction.addAll(offlineInventory.transaction);
+
+        this.playerOnline = true;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return this.inventory;
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public @NotNull HumanEntity getPlayer() {
+        return this.player.getBukkitEntity();
+    }
+
+    private @NotNull ItemStack getRawItem(int i) {
+        if (i < 0) {
+            return ItemStack.EMPTY;
+        }
+
+        NonNullList<ItemStack> list;
+        for (Iterator<NonNullList<ItemStack>> iterator = this.compartments.iterator(); iterator.hasNext(); i -= list.size()) {
+            list = iterator.next();
+            if (i < list.size()) {
+                return list.get(i);
+            }
+        }
+
+        return ItemStack.EMPTY;
+    }
+
+    private void setRawItem(int i, @NotNull ItemStack itemStack) {
+        if (i < 0) {
+            return;
+        }
+
+        NonNullList<ItemStack> list;
+        for (Iterator<NonNullList<ItemStack>> iterator = this.compartments.iterator(); iterator.hasNext(); i -= list.size()) {
+            list = iterator.next();
+            if (i < list.size()) {
+                list.set(i, itemStack);
+            }
+        }
+    }
+
+    private record IndexedCompartment(@Nullable NonNullList<ItemStack> compartment, int index) {}
+
+    private @NotNull SpecialPlayerInventory.IndexedCompartment getIndexedContent(int index) {
+        if (index < items.size()) {
+            return new IndexedCompartment(items, getReversedItemSlotNum(index));
+        }
+
+        index -= items.size();
+
+        if (index < armor.size()) {
+            return new IndexedCompartment(armor, getReversedArmorSlotNum(index));
+        }
+
+        index -= armor.size();
+
+        if (index < offhand.size()) {
+            return new IndexedCompartment(offhand, index);
+        }
+
+        index -= offhand.size();
+
+        return new IndexedCompartment(null, index);
+    }
+
+    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;
+    }
+
+    private boolean contains(Predicate<ItemStack> predicate) {
+        return this.compartments.stream().flatMap(NonNullList::stream).anyMatch(predicate);
+    }
+
+    @Override
+    public List<ItemStack> getArmorContents() {
+        return this.armor;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.player.getInventory().onOpen(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.player.getInventory().onClose(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.player.getInventory().getViewers();
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.player.getBukkitEntity();
+    }
+
+    @Override
+    public int getMaxStackSize() {
+        return this.player.getInventory().getMaxStackSize();
+    }
+
+    @Override
+    public void setMaxStackSize(int size) {
+        this.player.getInventory().setMaxStackSize(size);
+    }
+
+    @Override
+    public Location getLocation() {
+        return this.player.getBukkitEntity().getLocation();
+    }
+
+    @Override
+    public boolean hasCustomName() {
+        return false;
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.compartments.stream().flatMap(Collection::stream).collect(Collectors.toList());
+    }
+
+    @Override
+    public ItemStack getSelected() {
+        return isHotbarSlot(this.selected) ? this.items.get(this.selected) : ItemStack.EMPTY;
+    }
+
+    private boolean hasRemainingSpaceForItem(ItemStack itemstack, ItemStack itemstack1) {
+        return !itemstack.isEmpty() && ItemStack.isSameItemSameTags(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.items.size(); ++i) {
+            ItemStack itemstack1 = this.getRawItem(i);
+            if (itemstack1.isEmpty()) {
+                return itemstack.getCount();
+            }
+
+            if (this.hasRemainingSpaceForItem(itemstack1, itemstack)) {
+                remains -= (itemstack1.getMaxStackSize() < this.getMaxStackSize() ? itemstack1.getMaxStackSize() : this.getMaxStackSize()) - itemstack1.getCount();
+            }
+
+            if (remains <= 0) {
+                return itemstack.getCount();
+            }
+        }
+
+        ItemStack offhandItemStack = this.getRawItem(this.items.size() + this.armor.size());
+        if (this.hasRemainingSpaceForItem(offhandItemStack, itemstack)) {
+            remains -= (offhandItemStack.getMaxStackSize() < this.getMaxStackSize() ? offhandItemStack.getMaxStackSize() : this.getMaxStackSize()) - offhandItemStack.getCount();
+        }
+
+        return remains <= 0 ? itemstack.getCount() : itemstack.getCount() - remains;
+    }
+
+    @Override
+    public int getFreeSlot() {
+        for(int i = 0; i < this.items.size(); ++i) {
+            if (this.items.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public void setPickedItem(ItemStack itemstack) {
+        int i = this.findSlotMatchingItem(itemstack);
+        if (isHotbarSlot(i)) {
+            this.selected = i;
+        } else if (i == -1) {
+            this.selected = this.getSuitableHotbarSlot();
+            if (!this.items.get(this.selected).isEmpty()) {
+                int j = this.getFreeSlot();
+                if (j != -1) {
+                    this.items.set(j, this.items.get(this.selected));
+                }
+            }
+
+            this.items.set(this.selected, itemstack);
+        } else {
+            this.pickSlot(i);
+        }
+
+    }
+
+    @Override
+    public void pickSlot(int i) {
+        this.selected = this.getSuitableHotbarSlot();
+        ItemStack itemstack = this.items.get(this.selected);
+        this.items.set(this.selected, this.items.get(i));
+        this.items.set(i, itemstack);
+    }
+
+    @Override
+    public int findSlotMatchingItem(ItemStack itemstack) {
+        for(int i = 0; i < this.items.size(); ++i) {
+            if (!this.items.get(i).isEmpty() && ItemStack.isSameItemSameTags(itemstack, this.items.get(i))) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int findSlotMatchingUnusedItem(ItemStack itemStack) {
+        for(int i = 0; i < this.items.size(); ++i) {
+            ItemStack localItem = this.items.get(i);
+            if (!this.items.get(i).isEmpty() && ItemStack.isSameItemSameTags(itemStack, this.items.get(i)) && !this.items.get(i).isDamaged() && !localItem.isEnchanted() && !localItem.hasCustomHoverName()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int getSuitableHotbarSlot() {
+        int i;
+        int j;
+        for(j = 0; j < 9; ++j) {
+            i = (this.selected + j) % 9;
+            if (this.items.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        for(j = 0; j < 9; ++j) {
+            i = (this.selected + j) % 9;
+            if (!this.items.get(i).isEnchanted()) {
+                return i;
+            }
+        }
+
+        return this.selected;
+    }
+
+    @Override
+    public void swapPaint(double d0) {
+        if (d0 > 0.0D) {
+            d0 = 1.0D;
+        }
+
+        if (d0 < 0.0D) {
+            d0 = -1.0D;
+        }
+
+        this.selected = (int) (this.selected - d0);
+
+        while (this.selected < 0) {
+            this.selected += 9;
+        }
+
+        while(this.selected >= 9) {
+            this.selected -= 9;
+        }
+    }
+
+    @Override
+    public int clearOrCountMatchingItems(Predicate<ItemStack> predicate, int i, Container container) {
+        byte b0 = 0;
+        boolean flag = i == 0;
+        int j = b0 + ContainerHelper.clearOrCountMatchingItems(this, predicate, i - b0, flag);
+        j += ContainerHelper.clearOrCountMatchingItems(container, predicate, i - j, flag);
+        ItemStack itemstack = this.player.containerMenu.getCarried();
+        j += ContainerHelper.clearOrCountMatchingItems(itemstack, predicate, i - j, flag);
+        if (itemstack.isEmpty()) {
+            this.player.containerMenu.setCarried(ItemStack.EMPTY);
+        }
+
+        return j;
+    }
+
+    private int addResource(ItemStack itemstack) {
+        int i = this.getSlotWithRemainingSpace(itemstack);
+        if (i == -1) {
+            i = this.getFreeSlot();
+        }
+
+        return i == -1 ? itemstack.getCount() : this.addResource(i, itemstack);
+    }
+
+    private int addResource(int i, ItemStack itemstack) {
+        Item item = itemstack.getItem();
+        int j = itemstack.getCount();
+        ItemStack localItemStack = this.getRawItem(i);
+        if (localItemStack.isEmpty()) {
+            localItemStack = new ItemStack(item, 0);
+            if (itemstack.hasTag()) {
+                // hasTag ensures tag not null
+                //noinspection ConstantConditions
+                localItemStack.setTag(itemstack.getTag().copy());
+            }
+
+            this.setRawItem(i, localItemStack);
+        }
+
+        int k = Math.min(j, localItemStack.getMaxStackSize() - localItemStack.getCount());
+
+        if (k > this.getMaxStackSize() - localItemStack.getCount()) {
+            k = this.getMaxStackSize() - localItemStack.getCount();
+        }
+
+        if (k != 0) {
+            j -= k;
+            localItemStack.grow(k);
+            localItemStack.setPopTime(5);
+        }
+
+        return j;
+    }
+
+    @Override
+    public int getSlotWithRemainingSpace(ItemStack itemstack) {
+        if (this.hasRemainingSpaceForItem(this.getRawItem(this.selected), itemstack)) {
+            return this.selected;
+        } else if (this.hasRemainingSpaceForItem(this.getRawItem(40), itemstack)) {
+            return 40;
+        } else {
+            for(int i = 0; i < this.items.size(); ++i) {
+                if (this.hasRemainingSpaceForItem(this.items.get(i), itemstack)) {
+                    return i;
+                }
+            }
+
+            return -1;
+        }
+    }
+
+    @Override
+    public void tick() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                if (!compartment.get(i).isEmpty()) {
+                    compartment.get(i).inventoryTick(this.player.level, this.player, i, this.selected == i);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public boolean add(ItemStack itemStack) {
+        return this.add(-1, itemStack);
+    }
+
+    @Override
+    public boolean add(int i, ItemStack itemStack) {
+        if (itemStack.isEmpty()) {
+            return false;
+        } else {
+            try {
+                if (itemStack.isDamaged()) {
+                    if (i == -1) {
+                        i = this.getFreeSlot();
+                    }
+
+                    if (i >= 0) {
+                        this.items.set(i, itemStack.copy());
+                        this.items.get(i).setPopTime(5);
+                        itemStack.setCount(0);
+                        return true;
+                    } else if (this.player.getAbilities().instabuild) {
+                        itemStack.setCount(0);
+                        return true;
+                    } else {
+                        return false;
+                    }
+                } else {
+                    int j;
+                    do {
+                        j = itemStack.getCount();
+                        if (i == -1) {
+                            itemStack.setCount(this.addResource(itemStack));
+                        } else {
+                            itemStack.setCount(this.addResource(i, itemStack));
+                        }
+                    } while(!itemStack.isEmpty() && itemStack.getCount() < j);
+
+                    if (itemStack.getCount() == j && this.player.getAbilities().instabuild) {
+                        itemStack.setCount(0);
+                        return true;
+                    } else {
+                        return itemStack.getCount() < j;
+                    }
+                }
+            } catch (Throwable var6) {
+                CrashReport crashReport = CrashReport.forThrowable(var6, "Adding item to inventory");
+                CrashReportCategory crashReportCategory = crashReport.addCategory("Item being added");
+                crashReportCategory.setDetail("Item ID", Item.getId(itemStack.getItem()));
+                crashReportCategory.setDetail("Item data", itemStack.getDamageValue());
+                crashReportCategory.setDetail("Item name", () -> itemStack.getHoverName().getString());
+                throw new ReportedException(crashReport);
+            }
+        }
+    }
+
+    @Override
+    public void placeItemBackInInventory(ItemStack itemStack) {
+        this.placeItemBackInInventory(itemStack, true);
+    }
+
+    @Override
+    public void placeItemBackInInventory(ItemStack itemStack, boolean flag) {
+        while(true) {
+            if (!itemStack.isEmpty()) {
+                int i = this.getSlotWithRemainingSpace(itemStack);
+                if (i == -1) {
+                    i = this.getFreeSlot();
+                }
+
+                if (i != -1) {
+                    int j = itemStack.getMaxStackSize() - this.getRawItem(i).getCount();
+                    if (this.add(i, itemStack.split(j)) && flag && this.player instanceof ServerPlayer) {
+                        ((ServerPlayer)this.player).connection.send(new ClientboundContainerSetSlotPacket(-2, 0, i, this.getRawItem(i)));
+                    }
+                    continue;
+                }
+
+                this.player.drop(itemStack, false);
+            }
+
+            return;
+        }
+    }
+
+    @Override
+    public ItemStack removeItem(int rawIndex, final int j) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null
+                || indexedCompartment.compartment().get(indexedCompartment.index()).isEmpty()) {
+            return ItemStack.EMPTY;
+        }
+
+        return ContainerHelper.removeItem(indexedCompartment.compartment(), indexedCompartment.index(), j);
+    }
+
+    @Override
+    public void removeItem(ItemStack itemStack) {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                if (compartment.get(i) == itemStack) {
+                    compartment.set(i, ItemStack.EMPTY);
+                    break;
+                }
+            }
+        }
+    }
+
+    @Override
+    public ItemStack removeItemNoUpdate(int rawIndex) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            return ItemStack.EMPTY;
+        }
+
+        ItemStack removed = indexedCompartment.compartment().set(indexedCompartment.index(), ItemStack.EMPTY);
+
+        if (removed.isEmpty()) {
+            return ItemStack.EMPTY;
+        }
+
+        return removed;
+    }
+
+    @Override
+    public void setItem(int rawIndex, final ItemStack itemStack) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            this.player.drop(itemStack, true);
+            return;
+        }
+
+        indexedCompartment.compartment().set(indexedCompartment.index(), itemStack);
+    }
+
+    @Override
+    public float getDestroySpeed(BlockState blockState) {
+        return this.items.get(this.selected).getDestroySpeed(blockState);
+    }
+
+    @Override
+    public ListTag save(ListTag listTag) {
+        for (int i = 0; i < this.items.size(); ++i) {
+            if (!this.items.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)i);
+                this.items.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        for (int i = 0; i < this.armor.size(); ++i) {
+            if (!this.armor.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)(i + 100));
+                this.armor.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        for (int i = 0; i < this.offhand.size(); ++i) {
+            if (!this.offhand.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)(i + 150));
+                this.offhand.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        return listTag;
+    }
+
+    @Override
+    public void load(ListTag listTag) {
+        this.items.clear();
+        this.armor.clear();
+        this.offhand.clear();
+
+        for(int i = 0; i < listTag.size(); ++i) {
+            CompoundTag compoundTag = listTag.getCompound(i);
+            int j = compoundTag.getByte("Slot") & 255;
+            ItemStack itemstack = ItemStack.of(compoundTag);
+            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.offhand.size() + 150) {
+                    this.offhand.set(j - 150, itemstack);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public int getContainerSize() {
+        return 45;
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return !contains(itemStack -> !itemStack.isEmpty());
+    }
+
+    @Override
+    public ItemStack getItem(int rawIndex) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            return ItemStack.EMPTY;
+        }
+
+        return indexedCompartment.compartment().get(indexedCompartment.index());
+    }
+
+    @Override
+    public Component getName() {
+        return this.player.getName();
+    }
+
+    @Override
+    public ItemStack getArmor(int index) {
+        return this.armor.get(index);
+    }
+
+    @Override
+    public void hurtArmor(DamageSource damagesource, float damage, int[] armorIndices) {
+        if (damage > 0.0F) {
+            damage /= 4.0F;
+            if (damage < 1.0F) {
+                damage = 1.0F;
+            }
+
+            for (int index : armorIndices) {
+                ItemStack itemstack = this.armor.get(index);
+                if ((!damagesource.is(DamageTypeTags.IS_FIRE) || !itemstack.getItem().isFireResistant()) && itemstack.getItem() instanceof ArmorItem) {
+                    itemstack.hurtAndBreak((int) damage, this.player, localPlayer -> localPlayer.broadcastBreakEvent(EquipmentSlot.byTypeAndIndex(EquipmentSlot.Type.ARMOR, index)));
+                }
+            }
+        }
+    }
+
+    @Override
+    public void dropAll() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                ItemStack itemstack = compartment.get(i);
+                if (!itemstack.isEmpty()) {
+                    this.player.drop(itemstack, true, false);
+                    compartment.set(i, ItemStack.EMPTY);
+                }
+            }
+        }
+    }
+
+    @Override
+    public void setChanged() {
+        super.setChanged();
+    }
+
+    @Override
+    public int getTimesChanged() {
+        return super.getTimesChanged();
+    }
+
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+
+    @Override
+    public boolean contains(ItemStack itemstack) {
+        return contains(itemStack -> itemStack.isEmpty() && itemStack.sameItem(itemstack));
+    }
+
+    @Override
+    public boolean contains(TagKey<Item> tagKey) {
+
+        return contains(itemStack -> !itemStack.isEmpty() && itemStack.is(tagKey));
+    }
+
+    @Override
+    public void replaceWith(Inventory inventory) {
+        Function<Integer, ItemStack> getter;
+
+        if (inventory instanceof SpecialPlayerInventory specialPlayerInventory) {
+            getter = specialPlayerInventory::getRawItem;
+        } else {
+            getter = inventory::getItem;
+        }
+
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            this.setRawItem(i, getter.apply(i));
+        }
+
+        this.selected = inventory.selected;
+    }
+
+    @Override
+    public void clearContent() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            compartment.clear();
+        }
+    }
+
+    @Override
+    public void fillStackedContents(StackedContents stackedContents) {
+        for (ItemStack itemstack : this.items) {
+            stackedContents.accountSimpleStack(itemstack);
+        }
+    }
+
+    @Override
+    public ItemStack removeFromSelected(boolean dropWholeStack) {
+        ItemStack itemstack = this.getSelected();
+        return itemstack.isEmpty() ? ItemStack.EMPTY : this.removeItem(this.selected, dropWholeStack ? itemstack.getCount() : 1);
+    }
+
+}
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright (C) 2011-2020 lishid. All rights reserved.
+  ~ Copyright (C) 2011-2023 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
@@ -20,56 +20,62 @@
  <modelVersion>4.0.0</modelVersion>

  <parent>
+    <artifactId>openinvparent</artifactId>
    <groupId>com.lishid</groupId>
-    <artifactId>openinvinternal</artifactId>
-    <version>4.1.1-SNAPSHOT</version>
+    <relativePath>../../pom.xml</relativePath>
+    <version>4.4.0</version>
  </parent>

-  <artifactId>openinvadapter1_15_R1</artifactId>
-  <name>OpenInvAdapter1_15_R1</name>
+  <artifactId>openinvadapter1_20_R1</artifactId>
+  <name>OpenInvAdapter1_20_R1</name>
+
+  <properties>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
+    <spigot.version>1.20.1-R0.1-SNAPSHOT</spigot.version>
+  </properties>

  <dependencies>
    <dependency>
      <groupId>org.spigotmc</groupId>
+      <artifactId>spigot-api</artifactId>
+      <version>${spigot.version}</version>
+    </dependency>
+    <dependency>
      <artifactId>spigot</artifactId>
-      <version>1.15.1-R0.1-SNAPSHOT</version>
+      <groupId>org.spigotmc</groupId>
+      <scope>provided</scope>
+      <version>${spigot.version}</version>
+      <classifier>remapped-mojang</classifier>
+    </dependency>
+    <dependency>
+      <artifactId>openinvapi</artifactId>
+      <groupId>com.lishid</groupId>
      <scope>provided</scope>
    </dependency>
    <dependency>
-      <groupId>com.lishid</groupId>
      <artifactId>openinvplugincore</artifactId>
-      <version>4.1.1-SNAPSHOT</version>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>annotations</artifactId>
+      <groupId>org.jetbrains</groupId>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-shade-plugin</artifactId>
-        <version>3.2.2</version>
-        <configuration>
-          <minimizeJar>true</minimizeJar>
-        </configuration>
-        <executions>
-          <execution>
-            <phase>package</phase>
-            <goals>
-              <goal>shade</goal>
-            </goals>
-          </execution>
-        </executions>
      </plugin>
-
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>net.md-5</groupId>
+        <artifactId>specialsource-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>

-</project>
+</project>
@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2011-2023 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_20_R1;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.internal.IAnySilentContainer;
+import com.lishid.openinv.util.ReflectionHelper;
+import java.lang.reflect.Field;
+import java.util.logging.Logger;
+import net.minecraft.core.BlockPos;
+import net.minecraft.network.chat.Component;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.level.ServerPlayerGameMode;
+import net.minecraft.world.MenuProvider;
+import net.minecraft.world.SimpleMenuProvider;
+import net.minecraft.world.entity.monster.Shulker;
+import net.minecraft.world.inventory.ChestMenu;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.inventory.PlayerEnderChestContainer;
+import net.minecraft.world.level.GameType;
+import net.minecraft.world.level.block.BarrelBlock;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.ChestBlock;
+import net.minecraft.world.level.block.ShulkerBoxBlock;
+import net.minecraft.world.level.block.TrappedChestBlock;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.entity.EnderChestBlockEntity;
+import net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity;
+import net.minecraft.world.level.block.entity.ShulkerBoxBlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.phys.AABB;
+import org.bukkit.Bukkit;
+import org.bukkit.GameMode;
+import org.bukkit.Material;
+import org.bukkit.Statistic;
+import org.bukkit.block.ShulkerBox;
+import org.bukkit.craftbukkit.v1_20_R1.CraftWorld;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class AnySilentContainer implements IAnySilentContainer {
+
+    private @Nullable Field serverPlayerGameModeGameType;
+
+    public AnySilentContainer() {
+        try {
+            try {
+                this.serverPlayerGameModeGameType = ServerPlayerGameMode.class.getDeclaredField("b");
+                this.serverPlayerGameModeGameType.setAccessible(true);
+            } catch (NoSuchFieldException e) {
+                Logger logger = OpenInv.getPlugin(OpenInv.class).getLogger();
+                logger.warning("ServerPlayerGameMode#gameModeForPlayer's obfuscated name has changed!");
+                logger.warning("Please report this at https://github.com/Jikoo/OpenInv/issues");
+                logger.warning("Attempting to fall through using reflection. Please verify that SilentContainer does not fail.");
+                // N.B. gameModeForPlayer is (for now) declared before previousGameModeForPlayer so silent shouldn't break.
+                this.serverPlayerGameModeGameType = ReflectionHelper.grabFieldByType(ServerPlayerGameMode.class, GameType.class);
+            }
+        } catch (SecurityException e) {
+            Logger logger = OpenInv.getPlugin(OpenInv.class).getLogger();
+            logger.warning("Unable to directly write player game mode! SilentContainer will fail.");
+            logger.log(java.util.logging.Level.WARNING, "Error obtaining GameType field", e);
+        }
+    }
+
+    @Override
+    public boolean isShulkerBlocked(@NotNull ShulkerBox shulkerBox) {
+        org.bukkit.World bukkitWorld = shulkerBox.getWorld();
+        if (!(bukkitWorld instanceof CraftWorld)) {
+            bukkitWorld = Bukkit.getWorld(bukkitWorld.getUID());
+        }
+
+        if (!(bukkitWorld instanceof CraftWorld craftWorld)) {
+            Exception exception = new IllegalStateException("AnySilentContainer access attempted on an unknown world!");
+            OpenInv.getPlugin(OpenInv.class).getLogger().log(java.util.logging.Level.WARNING, exception.getMessage(), exception);
+            return false;
+        }
+
+        final ServerLevel world = craftWorld.getHandle();
+        final BlockPos blockPosition = new BlockPos(shulkerBox.getX(), shulkerBox.getY(), shulkerBox.getZ());
+        final BlockEntity tile = world.getBlockEntity(blockPosition);
+
+        if (!(tile instanceof ShulkerBoxBlockEntity shulkerBoxBlockEntity)
+                || shulkerBoxBlockEntity.getAnimationStatus() != ShulkerBoxBlockEntity.AnimationStatus.CLOSED) {
+            return false;
+        }
+
+        BlockState blockState = world.getBlockState(blockPosition);
+
+        // See net.minecraft.world.level.block.ShulkerBoxBlock#canOpen
+        AABB boundingBox = Shulker.getProgressDeltaAabb(blockState.getValue(ShulkerBoxBlock.FACING), 0.0F, 0.5F)
+                .move(blockPosition)
+                .deflate(1.0E-6D);
+        return !world.noCollision(boundingBox);
+    }
+
+    @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;
+        }
+
+        ServerPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        final net.minecraft.world.level.Level level = player.level();
+        final BlockPos blockPos = new BlockPos(bukkitBlock.getX(), bukkitBlock.getY(), bukkitBlock.getZ());
+        final BlockEntity blockEntity = level.getBlockEntity(blockPos);
+
+        if (blockEntity == null) {
+            return false;
+        }
+
+        if (blockEntity instanceof EnderChestBlockEntity enderChestTile) {
+            // Anychest ender chest. See net.minecraft.world.level.block.EnderChestBlock
+            PlayerEnderChestContainer enderChest = player.getEnderChestInventory();
+            enderChest.setActiveChest(enderChestTile);
+            player.openMenu(new SimpleMenuProvider((containerCounter, playerInventory, ignored) -> {
+                MenuType<?> containers = PlayerDataManager.getContainers(enderChest.getContainerSize());
+                int rows = enderChest.getContainerSize() / 9;
+                return new ChestMenu(containers, containerCounter, playerInventory, enderChest, rows);
+            }, Component.translatable(("container.enderchest"))));
+            bukkitPlayer.incrementStatistic(Statistic.ENDERCHEST_OPENED);
+            return true;
+        }
+
+        if (!(blockEntity instanceof MenuProvider menuProvider)) {
+            return false;
+        }
+
+        BlockState blockState = level.getBlockState(blockPos);
+        Block block = blockState.getBlock();
+
+        if (block instanceof ChestBlock chestBlock) {
+
+            // boolean flag: do not check if chest is blocked
+            menuProvider = chestBlock.getMenuProvider(blockState, level, blockPos, true);
+
+            if (menuProvider == null) {
+                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                return false;
+            }
+
+            if (block instanceof TrappedChestBlock) {
+                bukkitPlayer.incrementStatistic(Statistic.TRAPPED_CHEST_TRIGGERED);
+            } else {
+                bukkitPlayer.incrementStatistic(Statistic.CHEST_OPENED);
+            }
+        }
+
+        if (block instanceof ShulkerBoxBlock) {
+            bukkitPlayer.incrementStatistic(Statistic.SHULKER_BOX_OPENED);
+        }
+
+        if (block instanceof BarrelBlock) {
+            bukkitPlayer.incrementStatistic(Statistic.OPEN_BARREL);
+        }
+
+        // AnyChest only - SilentChest not active, container unsupported, or unnecessary.
+        if (!silentchest || player.gameMode.getGameModeForPlayer() == GameType.SPECTATOR) {
+            player.openMenu(menuProvider);
+            return true;
+        }
+
+        // SilentChest requires access to setting players' game mode directly.
+        if (this.serverPlayerGameModeGameType == null) {
+            return false;
+        }
+
+        if (blockEntity instanceof RandomizableContainerBlockEntity lootable) {
+            if (lootable.lootTable != null) {
+                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                return false;
+            }
+        }
+
+        GameType gameType = player.gameMode.getGameModeForPlayer();
+        this.forceGameType(player, GameType.SPECTATOR);
+        player.openMenu(menuProvider);
+        this.forceGameType(player, gameType);
+        return true;
+    }
+
+    @Override
+    public void deactivateContainer(@NotNull final Player bukkitPlayer) {
+        if (this.serverPlayerGameModeGameType == null || bukkitPlayer.getGameMode() == GameMode.SPECTATOR) {
+            return;
+        }
+
+        ServerPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        // Force game mode change without informing plugins or players.
+        // Regular game mode set calls GameModeChangeEvent and is cancellable.
+        GameType gameType = player.gameMode.getGameModeForPlayer();
+        this.forceGameType(player, GameType.SPECTATOR);
+
+        // ServerPlayer#closeContainer cannot be called without entering an
+        // infinite loop because this method is called during inventory close.
+        // From ServerPlayer#closeContainer -> CraftEventFactory#handleInventoryCloseEvent
+        player.containerMenu.transferTo(player.inventoryMenu, player.getBukkitEntity());
+        // From ServerPlayer#closeContainer
+        player.doCloseContainer();
+        // Regular inventory close will handle the rest - packet sending, etc.
+
+        // Revert forced game mode.
+        this.forceGameType(player, gameType);
+    }
+
+    private void forceGameType(final ServerPlayer player, final GameType gameMode) {
+        if (this.serverPlayerGameModeGameType == null) {
+            // No need to warn repeatedly, error on startup and lack of function should be enough.
+            return;
+        }
+        try {
+            this.serverPlayerGameModeGameType.setAccessible(true);
+            this.serverPlayerGameModeGameType.set(player.gameMode, gameMode);
+        } catch (IllegalArgumentException | IllegalAccessException e) {
+            e.printStackTrace();
+        }
+    }
+
+}
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2011-2023 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_20_R1;
+
+import com.mojang.logging.LogUtils;
+import java.io.File;
+import net.minecraft.Util;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtIo;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.storage.PlayerDataStorage;
+import org.bukkit.craftbukkit.v1_20_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+
+public class OpenPlayer extends CraftPlayer {
+
+    public OpenPlayer(CraftServer server, ServerPlayer entity) {
+        super(server, entity);
+    }
+
+    @Override
+    public void loadData() {
+        // See CraftPlayer#loadData
+        CompoundTag loaded = this.server.getHandle().playerIo.load(this.getHandle());
+        if (loaded != null) {
+            getHandle().readAdditionalSaveData(loaded);
+        }
+    }
+
+    @Override
+    public void saveData() {
+        ServerPlayer player = this.getHandle();
+        // See net.minecraft.world.level.storage.PlayerDataStorage#save(EntityHuman)
+        try {
+            PlayerDataStorage worldNBTStorage = player.server.getPlayerList().playerIo;
+
+            CompoundTag playerData = player.saveWithoutId(new CompoundTag());
+            setExtraData(playerData);
+
+            if (!isOnline()) {
+                // Special case: save old vehicle data
+                CompoundTag oldData = worldNBTStorage.load(player);
+
+                if (oldData != null && oldData.contains("RootVehicle", 10)) {
+                    // See net.minecraft.server.PlayerList#a(NetworkManager, EntityPlayer) and net.minecraft.server.EntityPlayer#b(NBTTagCompound)
+                    playerData.put("RootVehicle", oldData.getCompound("RootVehicle"));
+                }
+            }
+
+            File file = File.createTempFile(player.getStringUUID() + "-", ".dat", worldNBTStorage.getPlayerDir());
+            NbtIo.writeCompressed(playerData, file);
+            File file1 = new File(worldNBTStorage.getPlayerDir(), player.getStringUUID() + ".dat");
+            File file2 = new File(worldNBTStorage.getPlayerDir(), player.getStringUUID() + ".dat_old");
+            Util.safeReplaceFile(file1, file, file2);
+        } catch (Exception e) {
+            LogUtils.getLogger().warn("Failed to save player data for {}: {}", player.getScoreboardName(), e);
+        }
+    }
+
+}
@@ -0,0 +1,249 @@
+/*
+ * Copyright (C) 2011-2023 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_20_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.Logger;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.level.Level;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.Server;
+import org.bukkit.craftbukkit.v1_20_R1.CraftServer;
+import org.bukkit.craftbukkit.v1_20_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R1.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftContainer;
+import org.bukkit.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(java.util.logging.Level.WARNING, e.getMessage(), e);
+            bukkitEntity = null;
+        }
+    }
+
+    public static @NotNull ServerPlayer getHandle(final Player player) {
+        if (player instanceof CraftPlayer) {
+            return ((CraftPlayer) player).getHandle();
+        }
+
+        Server server = player.getServer();
+        ServerPlayer nmsPlayer = null;
+
+        if (server instanceof CraftServer) {
+            nmsPlayer = ((CraftServer) server).getHandle().getPlayer(player.getUniqueId());
+        }
+
+        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.players.PlayerList#canPlayerLogin
+        // and net.minecraft.server.network.ServerLoginPacketListenerImpl#handleHello
+        GameProfile profile = new GameProfile(offline.getUniqueId(),
+                offline.getName() != null ? offline.getName() : offline.getUniqueId().toString());
+        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
+        ServerLevel worldServer = server.getLevel(Level.OVERWORLD);
+
+        if (worldServer == null) {
+            return null;
+        }
+
+        ServerPlayer entity = new ServerPlayer(server, worldServer, profile);
+
+        // Stop listening for advancement progression - if this is not cleaned up, loading causes a memory leak.
+        entity.getAdvancements().stopListening();
+
+        try {
+            injectPlayer(entity);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+
+        // Load data. This also reads basic data into the player.
+        // See CraftPlayer#loadData
+        CompoundTag loadedData = server.getPlayerList().playerIo.load(entity);
+
+        if (loadedData == null) {
+            // Exceptions with loading are logged by Mojang.
+            return null;
+        }
+
+        // Also read "extra" data.
+        entity.readAdditionalSaveData(loadedData);
+
+        if (entity.level() == null) {
+            // Paper: Move player to spawn
+            entity.spawnIn(null);
+        }
+
+        // Return the Bukkit entity.
+        return entity.getBukkitEntity();
+    }
+
+    void injectPlayer(ServerPlayer 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 {
+            ServerPlayer nmsPlayer = getHandle(player);
+            if (nmsPlayer.getBukkitEntity() instanceof OpenPlayer openPlayer) {
+                return openPlayer;
+            }
+            injectPlayer(nmsPlayer);
+            return nmsPlayer.getBukkitEntity();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+            return player;
+        }
+    }
+
+    @Nullable
+    @Override
+    public InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
+
+        ServerPlayer nmsPlayer = getHandle(player);
+
+        if (nmsPlayer.connection == null) {
+            return null;
+        }
+
+        InventoryView view = getView(player, inventory);
+
+        if (view == null) {
+            return player.openInventory(inventory.getBukkitInventory());
+        }
+
+        AbstractContainerMenu container = new CraftContainer(view, nmsPlayer, nmsPlayer.nextContainerCounter()) {
+            @Override
+            public MenuType<?> getType() {
+                return getContainers(inventory.getBukkitInventory().getSize());
+            }
+        };
+
+        container.setTitle(Component.literal(view.getTitle()));
+        container = CraftEventFactory.callInventoryOpenEvent(nmsPlayer, container);
+
+        if (container == null) {
+            return null;
+        }
+
+        nmsPlayer.connection.send(new ClientboundOpenScreenPacket(container.containerId, container.getType(),
+                Component.literal(container.getBukkitView().getTitle())));
+        nmsPlayer.containerMenu = 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 MenuType<?> getContainers(int inventorySize) {
+
+        return switch (inventorySize) {
+            case 9 -> MenuType.GENERIC_9x1;
+            case 18 -> MenuType.GENERIC_9x2;
+            case 36 -> MenuType.GENERIC_9x4; // PLAYER
+            case 41, 45 -> MenuType.GENERIC_9x5;
+            case 54 -> MenuType.GENERIC_9x6;
+            default -> MenuType.GENERIC_9x3; // Default 27-slot inventory
+        };
+    }
+
+    @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;
+    }
+
+}
@@ -0,0 +1,350 @@
+/*
+ * Copyright (C) 2011-2023 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_20_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.CompoundTag;
+import net.minecraft.nbt.ListTag;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.ContainerHelper;
+import net.minecraft.world.ContainerListener;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.entity.player.StackedContents;
+import net.minecraft.world.inventory.PlayerEnderChestContainer;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.entity.EnderChestBlockEntity;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_20_R1.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialEnderChest extends PlayerEnderChestContainer implements ISpecialEnderChest {
+
+    private final CraftInventory inventory;
+    private ServerPlayer owner;
+    private NonNullList<ItemStack> items;
+    private boolean playerOnline;
+
+    public SpecialEnderChest(final org.bukkit.entity.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.getEnderChestInventory().items;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return inventory;
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull final org.bukkit.entity.Player player) {
+        if (this.playerOnline) {
+            return;
+        }
+
+        ServerPlayer offlinePlayer = this.owner;
+        ServerPlayer onlinePlayer = PlayerDataManager.getHandle(player);
+
+        // Set owner to new player.
+        this.owner = onlinePlayer;
+
+        // Set player's ender chest contents to our modified contents.
+        PlayerEnderChestContainer onlineEnderChest = onlinePlayer.getEnderChestInventory();
+        for (int i = 0; i < onlineEnderChest.getContainerSize(); ++i) {
+            onlineEnderChest.setItem(i, this.items.get(i));
+        }
+
+        // Set our item array to the new inventory's array.
+        this.items = onlineEnderChest.items;
+
+        // Add viewers to new inventory.
+        onlineEnderChest.transaction.addAll(offlinePlayer.getEnderChestInventory().transaction);
+
+        this.playerOnline = true;
+    }
+
+    @Override
+    public @NotNull org.bukkit.entity.Player getPlayer() {
+        return owner.getBukkitEntity();
+    }
+
+    @Override
+    public void setChanged() {
+        this.owner.getEnderChestInventory().setChanged();
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.items;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.owner.getEnderChestInventory().onOpen(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.owner.getEnderChestInventory().onClose(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.owner.getEnderChestInventory().getViewers();
+    }
+
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+
+    @Override
+    public void setActiveChest(EnderChestBlockEntity enderChest) {
+        this.owner.getEnderChestInventory().setActiveChest(enderChest);
+    }
+
+    @Override
+    public boolean isActiveChest(EnderChestBlockEntity enderChest) {
+        return this.owner.getEnderChestInventory().isActiveChest(enderChest);
+    }
+
+    @Override
+    public int getMaxStackSize() {
+        return this.owner.getEnderChestInventory().getMaxStackSize();
+    }
+
+    @Override
+    public void setMaxStackSize(int i) {
+        this.owner.getEnderChestInventory().setMaxStackSize(i);
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.owner.getEnderChestInventory().getOwner();
+    }
+
+    @Override
+    public @Nullable Location getLocation() {
+        return null;
+    }
+
+    @Override
+    public void addListener(ContainerListener listener) {
+        this.owner.getEnderChestInventory().addListener(listener);
+    }
+
+    @Override
+    public void removeListener(ContainerListener listener) {
+        this.owner.getEnderChestInventory().removeListener(listener);
+    }
+
+    @Override
+    public ItemStack getItem(int i) {
+        return i >= 0 && i < this.items.size() ? this.items.get(i) : ItemStack.EMPTY;
+    }
+
+    @Override
+    public ItemStack removeItem(int i, int j) {
+        ItemStack itemstack = ContainerHelper.removeItem(this.items, i, j);
+        if (!itemstack.isEmpty()) {
+            this.setChanged();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public ItemStack addItem(ItemStack itemstack) {
+        ItemStack localItem = itemstack.copy();
+        this.moveItemToOccupiedSlotsWithSameType(localItem);
+        if (localItem.isEmpty()) {
+            return ItemStack.EMPTY;
+        } else {
+            this.moveItemToEmptySlots(localItem);
+            return localItem.isEmpty() ? ItemStack.EMPTY : localItem;
+        }
+    }
+
+    @Override
+    public boolean canAddItem(ItemStack itemstack) {
+        for (ItemStack itemstack1 : this.items) {
+            if (itemstack1.isEmpty() || ItemStack.isSameItemSameTags(itemstack1, itemstack) && itemstack1.getCount() < itemstack1.getMaxStackSize()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private void moveItemToEmptySlots(ItemStack itemstack) {
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            ItemStack localItem = this.getItem(i);
+            if (localItem.isEmpty()) {
+                this.setItem(i, itemstack.copy());
+                itemstack.setCount(0);
+                return;
+            }
+        }
+    }
+
+    private void moveItemToOccupiedSlotsWithSameType(ItemStack itemstack) {
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            ItemStack localItem = this.getItem(i);
+            if (ItemStack.isSameItemSameTags(localItem, itemstack)) {
+                this.moveItemsBetweenStacks(itemstack, localItem);
+                if (itemstack.isEmpty()) {
+                    return;
+                }
+            }
+        }
+    }
+
+    private void moveItemsBetweenStacks(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.grow(j);
+            itemstack.shrink(j);
+            this.setChanged();
+        }
+    }
+
+    @Override
+    public ItemStack removeItemNoUpdate(int i) {
+        ItemStack itemstack = this.items.get(i);
+        if (itemstack.isEmpty()) {
+            return ItemStack.EMPTY;
+        } else {
+            this.items.set(i, ItemStack.EMPTY);
+            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.setChanged();
+    }
+
+    @Override
+    public int getContainerSize() {
+        return this.owner.getEnderChestInventory().getContainerSize();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return this.items.stream().allMatch(ItemStack::isEmpty);
+    }
+
+    @Override
+    public void startOpen(Player player) {
+    }
+
+    @Override
+    public void stopOpen(Player player) {
+    }
+
+    @Override
+    public boolean canPlaceItem(int i, ItemStack itemstack) {
+        return true;
+    }
+
+    @Override
+    public void clearContent() {
+        this.items.clear();
+        this.setChanged();
+    }
+
+    @Override
+    public void fillStackedContents(StackedContents stackedContents) {
+        for (ItemStack itemstack : this.items) {
+            stackedContents.accountStack(itemstack);
+        }
+
+    }
+
+    @Override
+    public List<ItemStack> removeAllItems() {
+        List<ItemStack> list = this.items.stream().filter(Predicate.not(ItemStack::isEmpty)).collect(Collectors.toList());
+        this.clearContent();
+        return list;
+    }
+
+    @Override
+    public ItemStack removeItemType(Item item, int i) {
+        ItemStack itemstack = new ItemStack(item, 0);
+
+        for(int j = this.getContainerSize() - 1; j >= 0; --j) {
+            ItemStack localItem = this.getItem(j);
+            if (localItem.getItem().equals(item)) {
+                int k = i - itemstack.getCount();
+                ItemStack splitItem = localItem.split(k);
+                itemstack.grow(splitItem.getCount());
+                if (itemstack.getCount() == i) {
+                    break;
+                }
+            }
+        }
+
+        if (!itemstack.isEmpty()) {
+            this.setChanged();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public String toString() {
+        return this.items.stream().filter((itemStack) -> !itemStack.isEmpty()).toList().toString();
+    }
+
+    @Override
+    public void fromTag(ListTag listTag) {
+        for (int i = 0; i < this.getContainerSize(); ++i) {
+            this.setItem(i, ItemStack.EMPTY);
+        }
+
+        for (int i = 0; i < listTag.size(); ++i) {
+            CompoundTag compoundTag = listTag.getCompound(i);
+            int j = compoundTag.getByte("Slot") & 255;
+            if (j < this.getContainerSize()) {
+                this.setItem(j, ItemStack.of(compoundTag));
+            }
+        }
+
+    }
+
+}
@@ -0,0 +1,806 @@
+/*
+ * Copyright (C) 2011-2023 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_20_R1;
+
+import com.google.common.collect.ImmutableList;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import net.minecraft.CrashReport;
+import net.minecraft.CrashReportCategory;
+import net.minecraft.ReportedException;
+import net.minecraft.core.NonNullList;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.ListTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.tags.DamageTypeTags;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.Container;
+import net.minecraft.world.ContainerHelper;
+import net.minecraft.world.damagesource.DamageSource;
+import net.minecraft.world.entity.EquipmentSlot;
+import net.minecraft.world.entity.player.Inventory;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.entity.player.StackedContents;
+import net.minecraft.world.item.ArmorItem;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_20_R1.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_20_R1.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialPlayerInventory extends Inventory implements ISpecialPlayerInventory {
+
+    private final CraftInventory inventory;
+    private boolean playerOnline;
+    private Player player;
+    private NonNullList<ItemStack> items;
+    private NonNullList<ItemStack> armor;
+    private NonNullList<ItemStack> offhand;
+    private List<NonNullList<ItemStack>> compartments;
+
+    public SpecialPlayerInventory(@NotNull org.bukkit.entity.Player bukkitPlayer, @NotNull Boolean online) {
+        super(PlayerDataManager.getHandle(bukkitPlayer));
+        this.inventory = new CraftInventory(this);
+        this.playerOnline = online;
+        this.player = super.player;
+        this.selected = player.getInventory().selected;
+        this.items = this.player.getInventory().items;
+        this.armor = this.player.getInventory().armor;
+        this.offhand = this.player.getInventory().offhand;
+        this.compartments = ImmutableList.of(this.items, this.armor, this.offhand);
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull org.bukkit.entity.Player player) {
+        if (this.playerOnline) {
+            return;
+        }
+
+        Player offlinePlayer = this.player;
+        Player onlinePlayer = PlayerDataManager.getHandle(player);
+        onlinePlayer.getInventory().transaction.addAll(this.transaction);
+
+        // Set owner to new player.
+        this.player = onlinePlayer;
+
+        // Set player's inventory contents to our modified contents.
+        Inventory onlineInventory = onlinePlayer.getInventory();
+        for (int i = 0; i < getContainerSize(); ++i) {
+            onlineInventory.setItem(i, getRawItem(i));
+        }
+        onlineInventory.selected = this.selected;
+
+        // Set our item arrays to the new inventory's arrays.
+        this.items = onlineInventory.items;
+        this.armor = onlineInventory.armor;
+        this.offhand = onlineInventory.offhand;
+        this.compartments = ImmutableList.of(this.items, this.armor, this.offhand);
+
+        // Add existing viewers to new viewer list.
+        Inventory offlineInventory = offlinePlayer.getInventory();
+        // Remove self from listing - player is always a viewer of their own inventory, prevent duplicates.
+        offlineInventory.transaction.remove(offlinePlayer.getBukkitEntity());
+        onlineInventory.transaction.addAll(offlineInventory.transaction);
+
+        this.playerOnline = true;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return this.inventory;
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public @NotNull HumanEntity getPlayer() {
+        return this.player.getBukkitEntity();
+    }
+
+    private @NotNull ItemStack getRawItem(int i) {
+        if (i < 0) {
+            return ItemStack.EMPTY;
+        }
+
+        NonNullList<ItemStack> list;
+        for (Iterator<NonNullList<ItemStack>> iterator = this.compartments.iterator(); iterator.hasNext(); i -= list.size()) {
+            list = iterator.next();
+            if (i < list.size()) {
+                return list.get(i);
+            }
+        }
+
+        return ItemStack.EMPTY;
+    }
+
+    private void setRawItem(int i, @NotNull ItemStack itemStack) {
+        if (i < 0) {
+            return;
+        }
+
+        NonNullList<ItemStack> list;
+        for (Iterator<NonNullList<ItemStack>> iterator = this.compartments.iterator(); iterator.hasNext(); i -= list.size()) {
+            list = iterator.next();
+            if (i < list.size()) {
+                list.set(i, itemStack);
+            }
+        }
+    }
+
+    private record IndexedCompartment(@Nullable NonNullList<ItemStack> compartment, int index) {}
+
+    private @NotNull SpecialPlayerInventory.IndexedCompartment getIndexedContent(int index) {
+        if (index < items.size()) {
+            return new IndexedCompartment(items, getReversedItemSlotNum(index));
+        }
+
+        index -= items.size();
+
+        if (index < armor.size()) {
+            return new IndexedCompartment(armor, getReversedArmorSlotNum(index));
+        }
+
+        index -= armor.size();
+
+        if (index < offhand.size()) {
+            return new IndexedCompartment(offhand, index);
+        }
+
+        index -= offhand.size();
+
+        return new IndexedCompartment(null, index);
+    }
+
+    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;
+    }
+
+    private boolean contains(Predicate<ItemStack> predicate) {
+        return this.compartments.stream().flatMap(NonNullList::stream).anyMatch(predicate);
+    }
+
+    @Override
+    public List<ItemStack> getArmorContents() {
+        return this.armor;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.player.getInventory().onOpen(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.player.getInventory().onClose(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.player.getInventory().getViewers();
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.player.getBukkitEntity();
+    }
+
+    @Override
+    public int getMaxStackSize() {
+        return this.player.getInventory().getMaxStackSize();
+    }
+
+    @Override
+    public void setMaxStackSize(int size) {
+        this.player.getInventory().setMaxStackSize(size);
+    }
+
+    @Override
+    public Location getLocation() {
+        return this.player.getBukkitEntity().getLocation();
+    }
+
+    @Override
+    public boolean hasCustomName() {
+        return false;
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.compartments.stream().flatMap(Collection::stream).collect(Collectors.toList());
+    }
+
+    @Override
+    public ItemStack getSelected() {
+        return isHotbarSlot(this.selected) ? this.items.get(this.selected) : ItemStack.EMPTY;
+    }
+
+    private boolean hasRemainingSpaceForItem(ItemStack itemstack, ItemStack itemstack1) {
+        return !itemstack.isEmpty() && ItemStack.isSameItemSameTags(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.items.size(); ++i) {
+            ItemStack itemstack1 = this.getRawItem(i);
+            if (itemstack1.isEmpty()) {
+                return itemstack.getCount();
+            }
+
+            if (this.hasRemainingSpaceForItem(itemstack1, itemstack)) {
+                remains -= (itemstack1.getMaxStackSize() < this.getMaxStackSize() ? itemstack1.getMaxStackSize() : this.getMaxStackSize()) - itemstack1.getCount();
+            }
+
+            if (remains <= 0) {
+                return itemstack.getCount();
+            }
+        }
+
+        ItemStack offhandItemStack = this.getRawItem(this.items.size() + this.armor.size());
+        if (this.hasRemainingSpaceForItem(offhandItemStack, itemstack)) {
+            remains -= (offhandItemStack.getMaxStackSize() < this.getMaxStackSize() ? offhandItemStack.getMaxStackSize() : this.getMaxStackSize()) - offhandItemStack.getCount();
+        }
+
+        return remains <= 0 ? itemstack.getCount() : itemstack.getCount() - remains;
+    }
+
+    @Override
+    public int getFreeSlot() {
+        for(int i = 0; i < this.items.size(); ++i) {
+            if (this.items.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public void setPickedItem(ItemStack itemstack) {
+        int i = this.findSlotMatchingItem(itemstack);
+        if (isHotbarSlot(i)) {
+            this.selected = i;
+        } else if (i == -1) {
+            this.selected = this.getSuitableHotbarSlot();
+            if (!this.items.get(this.selected).isEmpty()) {
+                int j = this.getFreeSlot();
+                if (j != -1) {
+                    this.items.set(j, this.items.get(this.selected));
+                }
+            }
+
+            this.items.set(this.selected, itemstack);
+        } else {
+            this.pickSlot(i);
+        }
+
+    }
+
+    @Override
+    public void pickSlot(int i) {
+        this.selected = this.getSuitableHotbarSlot();
+        ItemStack itemstack = this.items.get(this.selected);
+        this.items.set(this.selected, this.items.get(i));
+        this.items.set(i, itemstack);
+    }
+
+    @Override
+    public int findSlotMatchingItem(ItemStack itemstack) {
+        for(int i = 0; i < this.items.size(); ++i) {
+            if (!this.items.get(i).isEmpty() && ItemStack.isSameItemSameTags(itemstack, this.items.get(i))) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int findSlotMatchingUnusedItem(ItemStack itemStack) {
+        for(int i = 0; i < this.items.size(); ++i) {
+            ItemStack localItem = this.items.get(i);
+            if (!this.items.get(i).isEmpty() && ItemStack.isSameItemSameTags(itemStack, this.items.get(i)) && !this.items.get(i).isDamaged() && !localItem.isEnchanted() && !localItem.hasCustomHoverName()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int getSuitableHotbarSlot() {
+        int i;
+        int j;
+        for(j = 0; j < 9; ++j) {
+            i = (this.selected + j) % 9;
+            if (this.items.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        for(j = 0; j < 9; ++j) {
+            i = (this.selected + j) % 9;
+            if (!this.items.get(i).isEnchanted()) {
+                return i;
+            }
+        }
+
+        return this.selected;
+    }
+
+    @Override
+    public void swapPaint(double d0) {
+        if (d0 > 0.0D) {
+            d0 = 1.0D;
+        }
+
+        if (d0 < 0.0D) {
+            d0 = -1.0D;
+        }
+
+        this.selected = (int) (this.selected - d0);
+
+        while (this.selected < 0) {
+            this.selected += 9;
+        }
+
+        while(this.selected >= 9) {
+            this.selected -= 9;
+        }
+    }
+
+    @Override
+    public int clearOrCountMatchingItems(Predicate<ItemStack> predicate, int i, Container container) {
+        byte b0 = 0;
+        boolean flag = i == 0;
+        int j = b0 + ContainerHelper.clearOrCountMatchingItems(this, predicate, i - b0, flag);
+        j += ContainerHelper.clearOrCountMatchingItems(container, predicate, i - j, flag);
+        ItemStack itemstack = this.player.containerMenu.getCarried();
+        j += ContainerHelper.clearOrCountMatchingItems(itemstack, predicate, i - j, flag);
+        if (itemstack.isEmpty()) {
+            this.player.containerMenu.setCarried(ItemStack.EMPTY);
+        }
+
+        return j;
+    }
+
+    private int addResource(ItemStack itemstack) {
+        int i = this.getSlotWithRemainingSpace(itemstack);
+        if (i == -1) {
+            i = this.getFreeSlot();
+        }
+
+        return i == -1 ? itemstack.getCount() : this.addResource(i, itemstack);
+    }
+
+    private int addResource(int i, ItemStack itemstack) {
+        Item item = itemstack.getItem();
+        int j = itemstack.getCount();
+        ItemStack localItemStack = this.getRawItem(i);
+        if (localItemStack.isEmpty()) {
+            localItemStack = new ItemStack(item, 0);
+            if (itemstack.hasTag()) {
+                // hasTag ensures tag not null
+                //noinspection ConstantConditions
+                localItemStack.setTag(itemstack.getTag().copy());
+            }
+
+            this.setRawItem(i, localItemStack);
+        }
+
+        int k = Math.min(j, localItemStack.getMaxStackSize() - localItemStack.getCount());
+
+        if (k > this.getMaxStackSize() - localItemStack.getCount()) {
+            k = this.getMaxStackSize() - localItemStack.getCount();
+        }
+
+        if (k != 0) {
+            j -= k;
+            localItemStack.grow(k);
+            localItemStack.setPopTime(5);
+        }
+
+        return j;
+    }
+
+    @Override
+    public int getSlotWithRemainingSpace(ItemStack itemstack) {
+        if (this.hasRemainingSpaceForItem(this.getRawItem(this.selected), itemstack)) {
+            return this.selected;
+        } else if (this.hasRemainingSpaceForItem(this.getRawItem(40), itemstack)) {
+            return 40;
+        } else {
+            for(int i = 0; i < this.items.size(); ++i) {
+                if (this.hasRemainingSpaceForItem(this.items.get(i), itemstack)) {
+                    return i;
+                }
+            }
+
+            return -1;
+        }
+    }
+
+    @Override
+    public void tick() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                if (!compartment.get(i).isEmpty()) {
+                    compartment.get(i).inventoryTick(this.player.level(), this.player, i, this.selected == i);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public boolean add(ItemStack itemStack) {
+        return this.add(-1, itemStack);
+    }
+
+    @Override
+    public boolean add(int i, ItemStack itemStack) {
+        if (itemStack.isEmpty()) {
+            return false;
+        } else {
+            try {
+                if (itemStack.isDamaged()) {
+                    if (i == -1) {
+                        i = this.getFreeSlot();
+                    }
+
+                    if (i >= 0) {
+                        this.items.set(i, itemStack.copy());
+                        this.items.get(i).setPopTime(5);
+                        itemStack.setCount(0);
+                        return true;
+                    } else if (this.player.getAbilities().instabuild) {
+                        itemStack.setCount(0);
+                        return true;
+                    } else {
+                        return false;
+                    }
+                } else {
+                    int j;
+                    do {
+                        j = itemStack.getCount();
+                        if (i == -1) {
+                            itemStack.setCount(this.addResource(itemStack));
+                        } else {
+                            itemStack.setCount(this.addResource(i, itemStack));
+                        }
+                    } while(!itemStack.isEmpty() && itemStack.getCount() < j);
+
+                    if (itemStack.getCount() == j && this.player.getAbilities().instabuild) {
+                        itemStack.setCount(0);
+                        return true;
+                    } else {
+                        return itemStack.getCount() < j;
+                    }
+                }
+            } catch (Throwable var6) {
+                CrashReport crashReport = CrashReport.forThrowable(var6, "Adding item to inventory");
+                CrashReportCategory crashReportCategory = crashReport.addCategory("Item being added");
+                crashReportCategory.setDetail("Item ID", Item.getId(itemStack.getItem()));
+                crashReportCategory.setDetail("Item data", itemStack.getDamageValue());
+                crashReportCategory.setDetail("Item name", () -> itemStack.getHoverName().getString());
+                throw new ReportedException(crashReport);
+            }
+        }
+    }
+
+    @Override
+    public void placeItemBackInInventory(ItemStack itemStack) {
+        this.placeItemBackInInventory(itemStack, true);
+    }
+
+    @Override
+    public void placeItemBackInInventory(ItemStack itemStack, boolean flag) {
+        while(true) {
+            if (!itemStack.isEmpty()) {
+                int i = this.getSlotWithRemainingSpace(itemStack);
+                if (i == -1) {
+                    i = this.getFreeSlot();
+                }
+
+                if (i != -1) {
+                    int j = itemStack.getMaxStackSize() - this.getRawItem(i).getCount();
+                    if (this.add(i, itemStack.split(j)) && flag && this.player instanceof ServerPlayer) {
+                        ((ServerPlayer)this.player).connection.send(new ClientboundContainerSetSlotPacket(-2, 0, i, this.getRawItem(i)));
+                    }
+                    continue;
+                }
+
+                this.player.drop(itemStack, false);
+            }
+
+            return;
+        }
+    }
+
+    @Override
+    public ItemStack removeItem(int rawIndex, final int j) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null
+                || indexedCompartment.compartment().get(indexedCompartment.index()).isEmpty()) {
+            return ItemStack.EMPTY;
+        }
+
+        return ContainerHelper.removeItem(indexedCompartment.compartment(), indexedCompartment.index(), j);
+    }
+
+    @Override
+    public void removeItem(ItemStack itemStack) {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                if (compartment.get(i) == itemStack) {
+                    compartment.set(i, ItemStack.EMPTY);
+                    break;
+                }
+            }
+        }
+    }
+
+    @Override
+    public ItemStack removeItemNoUpdate(int rawIndex) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            return ItemStack.EMPTY;
+        }
+
+        ItemStack removed = indexedCompartment.compartment().set(indexedCompartment.index(), ItemStack.EMPTY);
+
+        if (removed.isEmpty()) {
+            return ItemStack.EMPTY;
+        }
+
+        return removed;
+    }
+
+    @Override
+    public void setItem(int rawIndex, final ItemStack itemStack) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            this.player.drop(itemStack, true);
+            return;
+        }
+
+        indexedCompartment.compartment().set(indexedCompartment.index(), itemStack);
+    }
+
+    @Override
+    public float getDestroySpeed(BlockState blockState) {
+        return this.items.get(this.selected).getDestroySpeed(blockState);
+    }
+
+    @Override
+    public ListTag save(ListTag listTag) {
+        for (int i = 0; i < this.items.size(); ++i) {
+            if (!this.items.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)i);
+                this.items.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        for (int i = 0; i < this.armor.size(); ++i) {
+            if (!this.armor.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)(i + 100));
+                this.armor.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        for (int i = 0; i < this.offhand.size(); ++i) {
+            if (!this.offhand.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)(i + 150));
+                this.offhand.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        return listTag;
+    }
+
+    @Override
+    public void load(ListTag listTag) {
+        this.items.clear();
+        this.armor.clear();
+        this.offhand.clear();
+
+        for(int i = 0; i < listTag.size(); ++i) {
+            CompoundTag compoundTag = listTag.getCompound(i);
+            int j = compoundTag.getByte("Slot") & 255;
+            ItemStack itemstack = ItemStack.of(compoundTag);
+            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.offhand.size() + 150) {
+                    this.offhand.set(j - 150, itemstack);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public int getContainerSize() {
+        return 45;
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return !contains(itemStack -> !itemStack.isEmpty());
+    }
+
+    @Override
+    public ItemStack getItem(int rawIndex) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            return ItemStack.EMPTY;
+        }
+
+        return indexedCompartment.compartment().get(indexedCompartment.index());
+    }
+
+    @Override
+    public Component getName() {
+        return this.player.getName();
+    }
+
+    @Override
+    public ItemStack getArmor(int index) {
+        return this.armor.get(index);
+    }
+
+    @Override
+    public void hurtArmor(DamageSource damagesource, float damage, int[] armorIndices) {
+        if (damage > 0.0F) {
+            damage /= 4.0F;
+            if (damage < 1.0F) {
+                damage = 1.0F;
+            }
+
+            for (int index : armorIndices) {
+                ItemStack itemstack = this.armor.get(index);
+                if ((!damagesource.is(DamageTypeTags.IS_FIRE) || !itemstack.getItem().isFireResistant()) && itemstack.getItem() instanceof ArmorItem) {
+                    itemstack.hurtAndBreak((int) damage, this.player, localPlayer -> localPlayer.broadcastBreakEvent(EquipmentSlot.byTypeAndIndex(EquipmentSlot.Type.ARMOR, index)));
+                }
+            }
+        }
+    }
+
+    @Override
+    public void dropAll() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                ItemStack itemstack = compartment.get(i);
+                if (!itemstack.isEmpty()) {
+                    this.player.drop(itemstack, true, false);
+                    compartment.set(i, ItemStack.EMPTY);
+                }
+            }
+        }
+    }
+
+    @Override
+    public void setChanged() {
+        super.setChanged();
+    }
+
+    @Override
+    public int getTimesChanged() {
+        return super.getTimesChanged();
+    }
+
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+
+    @Override
+    public boolean contains(ItemStack itemstack) {
+        return contains(itemStack -> itemStack.isEmpty() && itemStack.is(itemstack.getItem()));
+    }
+
+    @Override
+    public boolean contains(TagKey<Item> tagKey) {
+
+        return contains(itemStack -> !itemStack.isEmpty() && itemStack.is(tagKey));
+    }
+
+    @Override
+    public void replaceWith(Inventory inventory) {
+        Function<Integer, ItemStack> getter;
+
+        if (inventory instanceof SpecialPlayerInventory specialPlayerInventory) {
+            getter = specialPlayerInventory::getRawItem;
+        } else {
+            getter = inventory::getItem;
+        }
+
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            this.setRawItem(i, getter.apply(i));
+        }
+
+        this.selected = inventory.selected;
+    }
+
+    @Override
+    public void clearContent() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            compartment.clear();
+        }
+    }
+
+    @Override
+    public void fillStackedContents(StackedContents stackedContents) {
+        for (ItemStack itemstack : this.items) {
+            stackedContents.accountSimpleStack(itemstack);
+        }
+    }
+
+    @Override
+    public ItemStack removeFromSelected(boolean dropWholeStack) {
+        ItemStack itemstack = this.getSelected();
+        return itemstack.isEmpty() ? ItemStack.EMPTY : this.removeItem(this.selected, dropWholeStack ? itemstack.getCount() : 1);
+    }
+
+}
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright (C) 2011-2020 lishid. All rights reserved.
+  ~ Copyright (C) 2011-2023 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
@@ -19,54 +20,60 @@
  <modelVersion>4.0.0</modelVersion>

  <parent>
+    <artifactId>openinvparent</artifactId>
    <groupId>com.lishid</groupId>
-    <artifactId>openinvinternal</artifactId>
-    <version>4.1.1-SNAPSHOT</version>
+    <relativePath>../../pom.xml</relativePath>
+    <version>4.4.0</version>
  </parent>

-  <artifactId>openinvadapter1_8_R3</artifactId>
-  <name>OpenInvAdapter1_8_R3</name>
+  <artifactId>openinvadapter1_20_R2</artifactId>
+  <name>OpenInvAdapter1_20_R2</name>
+
+  <properties>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
+    <spigot.version>1.20.2-R0.1-SNAPSHOT</spigot.version>
+  </properties>

  <dependencies>
    <dependency>
      <groupId>org.spigotmc</groupId>
+      <artifactId>spigot-api</artifactId>
+      <version>${spigot.version}</version>
+    </dependency>
+    <dependency>
      <artifactId>spigot</artifactId>
-      <version>1.8.8-R0.1-SNAPSHOT</version>
+      <groupId>org.spigotmc</groupId>
+      <scope>provided</scope>
+      <version>${spigot.version}</version>
+      <classifier>remapped-mojang</classifier>
+    </dependency>
+    <dependency>
+      <artifactId>openinvapi</artifactId>
+      <groupId>com.lishid</groupId>
      <scope>provided</scope>
    </dependency>
    <dependency>
-      <groupId>com.lishid</groupId>
      <artifactId>openinvplugincore</artifactId>
-      <version>4.1.1-SNAPSHOT</version>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>annotations</artifactId>
+      <groupId>org.jetbrains</groupId>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-shade-plugin</artifactId>
-        <version>3.2.2</version>
-        <configuration>
-          <minimizeJar>true</minimizeJar>
-        </configuration>
-        <executions>
-          <execution>
-            <phase>package</phase>
-            <goals>
-              <goal>shade</goal>
-            </goals>
-          </execution>
-        </executions>
      </plugin>
-
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>net.md-5</groupId>
+        <artifactId>specialsource-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>
@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2011-2023 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_20_R2;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.internal.IAnySilentContainer;
+import com.lishid.openinv.util.ReflectionHelper;
+import java.lang.reflect.Field;
+import java.util.logging.Logger;
+import net.minecraft.core.BlockPos;
+import net.minecraft.network.chat.Component;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.level.ServerPlayerGameMode;
+import net.minecraft.world.MenuProvider;
+import net.minecraft.world.SimpleMenuProvider;
+import net.minecraft.world.entity.monster.Shulker;
+import net.minecraft.world.inventory.ChestMenu;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.inventory.PlayerEnderChestContainer;
+import net.minecraft.world.level.GameType;
+import net.minecraft.world.level.block.BarrelBlock;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.ChestBlock;
+import net.minecraft.world.level.block.ShulkerBoxBlock;
+import net.minecraft.world.level.block.TrappedChestBlock;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.entity.EnderChestBlockEntity;
+import net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity;
+import net.minecraft.world.level.block.entity.ShulkerBoxBlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.phys.AABB;
+import org.bukkit.Bukkit;
+import org.bukkit.GameMode;
+import org.bukkit.Material;
+import org.bukkit.Statistic;
+import org.bukkit.block.ShulkerBox;
+import org.bukkit.craftbukkit.v1_20_R2.CraftWorld;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class AnySilentContainer implements IAnySilentContainer {
+
+    private @Nullable Field serverPlayerGameModeGameType;
+
+    public AnySilentContainer() {
+        try {
+            try {
+                this.serverPlayerGameModeGameType = ServerPlayerGameMode.class.getDeclaredField("b");
+                this.serverPlayerGameModeGameType.setAccessible(true);
+            } catch (NoSuchFieldException e) {
+                Logger logger = OpenInv.getPlugin(OpenInv.class).getLogger();
+                logger.warning("ServerPlayerGameMode#gameModeForPlayer's obfuscated name has changed!");
+                logger.warning("Please report this at https://github.com/Jikoo/OpenInv/issues");
+                logger.warning("Attempting to fall through using reflection. Please verify that SilentContainer does not fail.");
+                // N.B. gameModeForPlayer is (for now) declared before previousGameModeForPlayer so silent shouldn't break.
+                this.serverPlayerGameModeGameType = ReflectionHelper.grabFieldByType(ServerPlayerGameMode.class, GameType.class);
+            }
+        } catch (SecurityException e) {
+            Logger logger = OpenInv.getPlugin(OpenInv.class).getLogger();
+            logger.warning("Unable to directly write player game mode! SilentContainer will fail.");
+            logger.log(java.util.logging.Level.WARNING, "Error obtaining GameType field", e);
+        }
+    }
+
+    @Override
+    public boolean isShulkerBlocked(@NotNull ShulkerBox shulkerBox) {
+        org.bukkit.World bukkitWorld = shulkerBox.getWorld();
+        if (!(bukkitWorld instanceof CraftWorld)) {
+            bukkitWorld = Bukkit.getWorld(bukkitWorld.getUID());
+        }
+
+        if (!(bukkitWorld instanceof CraftWorld craftWorld)) {
+            Exception exception = new IllegalStateException("AnySilentContainer access attempted on an unknown world!");
+            OpenInv.getPlugin(OpenInv.class).getLogger().log(java.util.logging.Level.WARNING, exception.getMessage(), exception);
+            return false;
+        }
+
+        final ServerLevel world = craftWorld.getHandle();
+        final BlockPos blockPosition = new BlockPos(shulkerBox.getX(), shulkerBox.getY(), shulkerBox.getZ());
+        final BlockEntity tile = world.getBlockEntity(blockPosition);
+
+        if (!(tile instanceof ShulkerBoxBlockEntity shulkerBoxBlockEntity)
+                || shulkerBoxBlockEntity.getAnimationStatus() != ShulkerBoxBlockEntity.AnimationStatus.CLOSED) {
+            return false;
+        }
+
+        BlockState blockState = world.getBlockState(blockPosition);
+
+        // See net.minecraft.world.level.block.ShulkerBoxBlock#canOpen
+        AABB boundingBox = Shulker.getProgressDeltaAabb(blockState.getValue(ShulkerBoxBlock.FACING), 0.0F, 0.5F)
+                .move(blockPosition)
+                .deflate(1.0E-6D);
+        return !world.noCollision(boundingBox);
+    }
+
+    @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;
+        }
+
+        ServerPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        final net.minecraft.world.level.Level level = player.level();
+        final BlockPos blockPos = new BlockPos(bukkitBlock.getX(), bukkitBlock.getY(), bukkitBlock.getZ());
+        final BlockEntity blockEntity = level.getBlockEntity(blockPos);
+
+        if (blockEntity == null) {
+            return false;
+        }
+
+        if (blockEntity instanceof EnderChestBlockEntity enderChestTile) {
+            // Anychest ender chest. See net.minecraft.world.level.block.EnderChestBlock
+            PlayerEnderChestContainer enderChest = player.getEnderChestInventory();
+            enderChest.setActiveChest(enderChestTile);
+            player.openMenu(new SimpleMenuProvider((containerCounter, playerInventory, ignored) -> {
+                MenuType<?> containers = PlayerDataManager.getContainers(enderChest.getContainerSize());
+                int rows = enderChest.getContainerSize() / 9;
+                return new ChestMenu(containers, containerCounter, playerInventory, enderChest, rows);
+            }, Component.translatable(("container.enderchest"))));
+            bukkitPlayer.incrementStatistic(Statistic.ENDERCHEST_OPENED);
+            return true;
+        }
+
+        if (!(blockEntity instanceof MenuProvider menuProvider)) {
+            return false;
+        }
+
+        BlockState blockState = level.getBlockState(blockPos);
+        Block block = blockState.getBlock();
+
+        if (block instanceof ChestBlock chestBlock) {
+
+            // boolean flag: do not check if chest is blocked
+            menuProvider = chestBlock.getMenuProvider(blockState, level, blockPos, true);
+
+            if (menuProvider == null) {
+                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                return false;
+            }
+
+            if (block instanceof TrappedChestBlock) {
+                bukkitPlayer.incrementStatistic(Statistic.TRAPPED_CHEST_TRIGGERED);
+            } else {
+                bukkitPlayer.incrementStatistic(Statistic.CHEST_OPENED);
+            }
+        }
+
+        if (block instanceof ShulkerBoxBlock) {
+            bukkitPlayer.incrementStatistic(Statistic.SHULKER_BOX_OPENED);
+        }
+
+        if (block instanceof BarrelBlock) {
+            bukkitPlayer.incrementStatistic(Statistic.OPEN_BARREL);
+        }
+
+        // AnyChest only - SilentChest not active, container unsupported, or unnecessary.
+        if (!silentchest || player.gameMode.getGameModeForPlayer() == GameType.SPECTATOR) {
+            player.openMenu(menuProvider);
+            return true;
+        }
+
+        // SilentChest requires access to setting players' game mode directly.
+        if (this.serverPlayerGameModeGameType == null) {
+            return false;
+        }
+
+        if (blockEntity instanceof RandomizableContainerBlockEntity lootable) {
+            if (lootable.lootTable != null) {
+                OpenInv.getPlugin(OpenInv.class).sendSystemMessage(bukkitPlayer, "messages.error.lootNotGenerated");
+                return false;
+            }
+        }
+
+        GameType gameType = player.gameMode.getGameModeForPlayer();
+        this.forceGameType(player, GameType.SPECTATOR);
+        player.openMenu(menuProvider);
+        this.forceGameType(player, gameType);
+        return true;
+    }
+
+    @Override
+    public void deactivateContainer(@NotNull final Player bukkitPlayer) {
+        if (this.serverPlayerGameModeGameType == null || bukkitPlayer.getGameMode() == GameMode.SPECTATOR) {
+            return;
+        }
+
+        ServerPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
+
+        // Force game mode change without informing plugins or players.
+        // Regular game mode set calls GameModeChangeEvent and is cancellable.
+        GameType gameType = player.gameMode.getGameModeForPlayer();
+        this.forceGameType(player, GameType.SPECTATOR);
+
+        // ServerPlayer#closeContainer cannot be called without entering an
+        // infinite loop because this method is called during inventory close.
+        // From ServerPlayer#closeContainer -> CraftEventFactory#handleInventoryCloseEvent
+        player.containerMenu.transferTo(player.inventoryMenu, player.getBukkitEntity());
+        // From ServerPlayer#closeContainer
+        player.doCloseContainer();
+        // Regular inventory close will handle the rest - packet sending, etc.
+
+        // Revert forced game mode.
+        this.forceGameType(player, gameType);
+    }
+
+    private void forceGameType(final ServerPlayer player, final GameType gameMode) {
+        if (this.serverPlayerGameModeGameType == null) {
+            // No need to warn repeatedly, error on startup and lack of function should be enough.
+            return;
+        }
+        try {
+            this.serverPlayerGameModeGameType.setAccessible(true);
+            this.serverPlayerGameModeGameType.set(player.gameMode, gameMode);
+        } catch (IllegalArgumentException | IllegalAccessException e) {
+            e.printStackTrace();
+        }
+    }
+
+}
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2011-2023 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_20_R2;
+
+import com.mojang.logging.LogUtils;
+import java.io.File;
+import net.minecraft.Util;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtIo;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.storage.PlayerDataStorage;
+import org.bukkit.craftbukkit.v1_20_R2.CraftServer;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+
+public class OpenPlayer extends CraftPlayer {
+
+    public OpenPlayer(CraftServer server, ServerPlayer entity) {
+        super(server, entity);
+    }
+
+    @Override
+    public void loadData() {
+        // See CraftPlayer#loadData
+        CompoundTag loaded = this.server.getHandle().playerIo.load(this.getHandle());
+        if (loaded != null) {
+            getHandle().readAdditionalSaveData(loaded);
+        }
+    }
+
+    @Override
+    public void saveData() {
+        ServerPlayer player = this.getHandle();
+        // See net.minecraft.world.level.storage.PlayerDataStorage#save(EntityHuman)
+        try {
+            PlayerDataStorage worldNBTStorage = player.server.getPlayerList().playerIo;
+
+            CompoundTag playerData = player.saveWithoutId(new CompoundTag());
+            setExtraData(playerData);
+
+            if (!isOnline()) {
+                // Special case: save old vehicle data
+                CompoundTag oldData = worldNBTStorage.load(player);
+
+                if (oldData != null && oldData.contains("RootVehicle", 10)) {
+                    // See net.minecraft.server.PlayerList#a(NetworkManager, EntityPlayer) and net.minecraft.server.EntityPlayer#b(NBTTagCompound)
+                    playerData.put("RootVehicle", oldData.getCompound("RootVehicle"));
+                }
+            }
+
+            File file = File.createTempFile(player.getStringUUID() + "-", ".dat", worldNBTStorage.getPlayerDir());
+            NbtIo.writeCompressed(playerData, file);
+            File file1 = new File(worldNBTStorage.getPlayerDir(), player.getStringUUID() + ".dat");
+            File file2 = new File(worldNBTStorage.getPlayerDir(), player.getStringUUID() + ".dat_old");
+            Util.safeReplaceFile(file1, file, file2);
+        } catch (Exception e) {
+            LogUtils.getLogger().warn("Failed to save player data for {}: {}", player.getScoreboardName(), e);
+        }
+    }
+
+}
@@ -0,0 +1,263 @@
+/*
+ * Copyright (C) 2011-2023 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_20_R2;
+
+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 net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundOpenScreenPacket;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ClientInformation;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.player.ChatVisiblity;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.level.Level;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.Server;
+import org.bukkit.craftbukkit.v1_20_R2.CraftServer;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R2.event.CraftEventFactory;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftContainer;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.InventoryView;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.lang.reflect.Field;
+import java.util.logging.Logger;
+
+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(java.util.logging.Level.WARNING, e.getMessage(), e);
+            bukkitEntity = null;
+        }
+    }
+
+    public static @NotNull ServerPlayer getHandle(final Player player) {
+        if (player instanceof CraftPlayer) {
+            return ((CraftPlayer) player).getHandle();
+        }
+
+        Server server = player.getServer();
+        ServerPlayer nmsPlayer = null;
+
+        if (server instanceof CraftServer) {
+            nmsPlayer = ((CraftServer) server).getHandle().getPlayer(player.getUniqueId());
+        }
+
+        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.players.PlayerList#canPlayerLogin
+        // and net.minecraft.server.network.ServerLoginPacketListenerImpl#handleHello
+        GameProfile profile = new GameProfile(offline.getUniqueId(),
+                offline.getName() != null ? offline.getName() : offline.getUniqueId().toString());
+        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
+        ServerLevel worldServer = server.getLevel(Level.OVERWORLD);
+
+        if (worldServer == null) {
+            return null;
+        }
+
+        ClientInformation dummyInfo = new ClientInformation(
+            "en_us",
+            1, // Reduce distance just in case.
+            ChatVisiblity.HIDDEN, // Don't accept chat.
+            false,
+            ServerPlayer.DEFAULT_MODEL_CUSTOMIZATION,
+            ServerPlayer.DEFAULT_MAIN_HAND,
+            true,
+            false // Don't list in player list (not that this player is in the list anyway).
+        );
+
+        ServerPlayer entity = new ServerPlayer(server, worldServer, profile, dummyInfo);
+
+        // Stop listening for advancement progression - if this is not cleaned up, loading causes a memory leak.
+        entity.getAdvancements().stopListening();
+
+        try {
+            injectPlayer(entity);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+
+        // Load data. This also reads basic data into the player.
+        // See CraftPlayer#loadData
+        CompoundTag loadedData = server.getPlayerList().playerIo.load(entity);
+
+        if (loadedData == null) {
+            // Exceptions with loading are logged by Mojang.
+            return null;
+        }
+
+        // Also read "extra" data.
+        entity.readAdditionalSaveData(loadedData);
+
+        if (entity.level() == null) {
+            // Paper: Move player to spawn
+            entity.spawnIn(null);
+        }
+
+        // Return the Bukkit entity.
+        return entity.getBukkitEntity();
+    }
+
+    void injectPlayer(ServerPlayer 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 {
+            ServerPlayer nmsPlayer = getHandle(player);
+            if (nmsPlayer.getBukkitEntity() instanceof OpenPlayer openPlayer) {
+                return openPlayer;
+            }
+            injectPlayer(nmsPlayer);
+            return nmsPlayer.getBukkitEntity();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+            return player;
+        }
+    }
+
+    @Nullable
+    @Override
+    public InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
+
+        ServerPlayer nmsPlayer = getHandle(player);
+
+        if (nmsPlayer.connection == null) {
+            return null;
+        }
+
+        InventoryView view = getView(player, inventory);
+
+        if (view == null) {
+            return player.openInventory(inventory.getBukkitInventory());
+        }
+
+        AbstractContainerMenu container = new CraftContainer(view, nmsPlayer, nmsPlayer.nextContainerCounter()) {
+            @Override
+            public MenuType<?> getType() {
+                return getContainers(inventory.getBukkitInventory().getSize());
+            }
+        };
+
+        container.setTitle(Component.literal(view.getTitle()));
+        container = CraftEventFactory.callInventoryOpenEvent(nmsPlayer, container);
+
+        if (container == null) {
+            return null;
+        }
+
+        nmsPlayer.connection.send(new ClientboundOpenScreenPacket(container.containerId, container.getType(),
+                Component.literal(container.getBukkitView().getTitle())));
+        nmsPlayer.containerMenu = 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 MenuType<?> getContainers(int inventorySize) {
+
+        return switch (inventorySize) {
+            case 9 -> MenuType.GENERIC_9x1;
+            case 18 -> MenuType.GENERIC_9x2;
+            case 36 -> MenuType.GENERIC_9x4; // PLAYER
+            case 41, 45 -> MenuType.GENERIC_9x5;
+            case 54 -> MenuType.GENERIC_9x6;
+            default -> MenuType.GENERIC_9x3; // Default 27-slot inventory
+        };
+    }
+
+    @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;
+    }
+
+}
@@ -0,0 +1,350 @@
+/*
+ * Copyright (C) 2011-2023 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_20_R2;
+
+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.CompoundTag;
+import net.minecraft.nbt.ListTag;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.ContainerHelper;
+import net.minecraft.world.ContainerListener;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.entity.player.StackedContents;
+import net.minecraft.world.inventory.PlayerEnderChestContainer;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.entity.EnderChestBlockEntity;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialEnderChest extends PlayerEnderChestContainer implements ISpecialEnderChest {
+
+    private final CraftInventory inventory;
+    private ServerPlayer owner;
+    private NonNullList<ItemStack> items;
+    private boolean playerOnline;
+
+    public SpecialEnderChest(final org.bukkit.entity.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.getEnderChestInventory().items;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return inventory;
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull final org.bukkit.entity.Player player) {
+        if (this.playerOnline) {
+            return;
+        }
+
+        ServerPlayer offlinePlayer = this.owner;
+        ServerPlayer onlinePlayer = PlayerDataManager.getHandle(player);
+
+        // Set owner to new player.
+        this.owner = onlinePlayer;
+
+        // Set player's ender chest contents to our modified contents.
+        PlayerEnderChestContainer onlineEnderChest = onlinePlayer.getEnderChestInventory();
+        for (int i = 0; i < onlineEnderChest.getContainerSize(); ++i) {
+            onlineEnderChest.setItem(i, this.items.get(i));
+        }
+
+        // Set our item array to the new inventory's array.
+        this.items = onlineEnderChest.items;
+
+        // Add viewers to new inventory.
+        onlineEnderChest.transaction.addAll(offlinePlayer.getEnderChestInventory().transaction);
+
+        this.playerOnline = true;
+    }
+
+    @Override
+    public @NotNull org.bukkit.entity.Player getPlayer() {
+        return owner.getBukkitEntity();
+    }
+
+    @Override
+    public void setChanged() {
+        this.owner.getEnderChestInventory().setChanged();
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.items;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.owner.getEnderChestInventory().onOpen(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.owner.getEnderChestInventory().onClose(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.owner.getEnderChestInventory().getViewers();
+    }
+
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+
+    @Override
+    public void setActiveChest(EnderChestBlockEntity enderChest) {
+        this.owner.getEnderChestInventory().setActiveChest(enderChest);
+    }
+
+    @Override
+    public boolean isActiveChest(EnderChestBlockEntity enderChest) {
+        return this.owner.getEnderChestInventory().isActiveChest(enderChest);
+    }
+
+    @Override
+    public int getMaxStackSize() {
+        return this.owner.getEnderChestInventory().getMaxStackSize();
+    }
+
+    @Override
+    public void setMaxStackSize(int i) {
+        this.owner.getEnderChestInventory().setMaxStackSize(i);
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.owner.getEnderChestInventory().getOwner();
+    }
+
+    @Override
+    public @Nullable Location getLocation() {
+        return null;
+    }
+
+    @Override
+    public void addListener(ContainerListener listener) {
+        this.owner.getEnderChestInventory().addListener(listener);
+    }
+
+    @Override
+    public void removeListener(ContainerListener listener) {
+        this.owner.getEnderChestInventory().removeListener(listener);
+    }
+
+    @Override
+    public ItemStack getItem(int i) {
+        return i >= 0 && i < this.items.size() ? this.items.get(i) : ItemStack.EMPTY;
+    }
+
+    @Override
+    public ItemStack removeItem(int i, int j) {
+        ItemStack itemstack = ContainerHelper.removeItem(this.items, i, j);
+        if (!itemstack.isEmpty()) {
+            this.setChanged();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public ItemStack addItem(ItemStack itemstack) {
+        ItemStack localItem = itemstack.copy();
+        this.moveItemToOccupiedSlotsWithSameType(localItem);
+        if (localItem.isEmpty()) {
+            return ItemStack.EMPTY;
+        } else {
+            this.moveItemToEmptySlots(localItem);
+            return localItem.isEmpty() ? ItemStack.EMPTY : localItem;
+        }
+    }
+
+    @Override
+    public boolean canAddItem(ItemStack itemstack) {
+        for (ItemStack itemstack1 : this.items) {
+            if (itemstack1.isEmpty() || ItemStack.isSameItemSameTags(itemstack1, itemstack) && itemstack1.getCount() < itemstack1.getMaxStackSize()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private void moveItemToEmptySlots(ItemStack itemstack) {
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            ItemStack localItem = this.getItem(i);
+            if (localItem.isEmpty()) {
+                this.setItem(i, itemstack.copy());
+                itemstack.setCount(0);
+                return;
+            }
+        }
+    }
+
+    private void moveItemToOccupiedSlotsWithSameType(ItemStack itemstack) {
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            ItemStack localItem = this.getItem(i);
+            if (ItemStack.isSameItemSameTags(localItem, itemstack)) {
+                this.moveItemsBetweenStacks(itemstack, localItem);
+                if (itemstack.isEmpty()) {
+                    return;
+                }
+            }
+        }
+    }
+
+    private void moveItemsBetweenStacks(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.grow(j);
+            itemstack.shrink(j);
+            this.setChanged();
+        }
+    }
+
+    @Override
+    public ItemStack removeItemNoUpdate(int i) {
+        ItemStack itemstack = this.items.get(i);
+        if (itemstack.isEmpty()) {
+            return ItemStack.EMPTY;
+        } else {
+            this.items.set(i, ItemStack.EMPTY);
+            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.setChanged();
+    }
+
+    @Override
+    public int getContainerSize() {
+        return this.owner.getEnderChestInventory().getContainerSize();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return this.items.stream().allMatch(ItemStack::isEmpty);
+    }
+
+    @Override
+    public void startOpen(Player player) {
+    }
+
+    @Override
+    public void stopOpen(Player player) {
+    }
+
+    @Override
+    public boolean canPlaceItem(int i, ItemStack itemstack) {
+        return true;
+    }
+
+    @Override
+    public void clearContent() {
+        this.items.clear();
+        this.setChanged();
+    }
+
+    @Override
+    public void fillStackedContents(StackedContents stackedContents) {
+        for (ItemStack itemstack : this.items) {
+            stackedContents.accountStack(itemstack);
+        }
+
+    }
+
+    @Override
+    public List<ItemStack> removeAllItems() {
+        List<ItemStack> list = this.items.stream().filter(Predicate.not(ItemStack::isEmpty)).collect(Collectors.toList());
+        this.clearContent();
+        return list;
+    }
+
+    @Override
+    public ItemStack removeItemType(Item item, int i) {
+        ItemStack itemstack = new ItemStack(item, 0);
+
+        for(int j = this.getContainerSize() - 1; j >= 0; --j) {
+            ItemStack localItem = this.getItem(j);
+            if (localItem.getItem().equals(item)) {
+                int k = i - itemstack.getCount();
+                ItemStack splitItem = localItem.split(k);
+                itemstack.grow(splitItem.getCount());
+                if (itemstack.getCount() == i) {
+                    break;
+                }
+            }
+        }
+
+        if (!itemstack.isEmpty()) {
+            this.setChanged();
+        }
+
+        return itemstack;
+    }
+
+    @Override
+    public String toString() {
+        return this.items.stream().filter((itemStack) -> !itemStack.isEmpty()).toList().toString();
+    }
+
+    @Override
+    public void fromTag(ListTag listTag) {
+        for (int i = 0; i < this.getContainerSize(); ++i) {
+            this.setItem(i, ItemStack.EMPTY);
+        }
+
+        for (int i = 0; i < listTag.size(); ++i) {
+            CompoundTag compoundTag = listTag.getCompound(i);
+            int j = compoundTag.getByte("Slot") & 255;
+            if (j < this.getContainerSize()) {
+                this.setItem(j, ItemStack.of(compoundTag));
+            }
+        }
+
+    }
+
+}
@@ -0,0 +1,806 @@
+/*
+ * Copyright (C) 2011-2023 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_20_R2;
+
+import com.google.common.collect.ImmutableList;
+import com.lishid.openinv.internal.ISpecialPlayerInventory;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import net.minecraft.CrashReport;
+import net.minecraft.CrashReportCategory;
+import net.minecraft.ReportedException;
+import net.minecraft.core.NonNullList;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.ListTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundContainerSetSlotPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.tags.DamageTypeTags;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.Container;
+import net.minecraft.world.ContainerHelper;
+import net.minecraft.world.damagesource.DamageSource;
+import net.minecraft.world.entity.EquipmentSlot;
+import net.minecraft.world.entity.player.Inventory;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.entity.player.StackedContents;
+import net.minecraft.world.item.ArmorItem;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftInventory;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.inventory.InventoryHolder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class SpecialPlayerInventory extends Inventory implements ISpecialPlayerInventory {
+
+    private final CraftInventory inventory;
+    private boolean playerOnline;
+    private Player player;
+    private NonNullList<ItemStack> items;
+    private NonNullList<ItemStack> armor;
+    private NonNullList<ItemStack> offhand;
+    private List<NonNullList<ItemStack>> compartments;
+
+    public SpecialPlayerInventory(@NotNull org.bukkit.entity.Player bukkitPlayer, @NotNull Boolean online) {
+        super(PlayerDataManager.getHandle(bukkitPlayer));
+        this.inventory = new CraftInventory(this);
+        this.playerOnline = online;
+        this.player = super.player;
+        this.selected = player.getInventory().selected;
+        this.items = this.player.getInventory().items;
+        this.armor = this.player.getInventory().armor;
+        this.offhand = this.player.getInventory().offhand;
+        this.compartments = ImmutableList.of(this.items, this.armor, this.offhand);
+    }
+
+    @Override
+    public void setPlayerOnline(@NotNull org.bukkit.entity.Player player) {
+        if (this.playerOnline) {
+            return;
+        }
+
+        Player offlinePlayer = this.player;
+        Player onlinePlayer = PlayerDataManager.getHandle(player);
+        onlinePlayer.getInventory().transaction.addAll(this.transaction);
+
+        // Set owner to new player.
+        this.player = onlinePlayer;
+
+        // Set player's inventory contents to our modified contents.
+        Inventory onlineInventory = onlinePlayer.getInventory();
+        for (int i = 0; i < getContainerSize(); ++i) {
+            onlineInventory.setItem(i, getRawItem(i));
+        }
+        onlineInventory.selected = this.selected;
+
+        // Set our item arrays to the new inventory's arrays.
+        this.items = onlineInventory.items;
+        this.armor = onlineInventory.armor;
+        this.offhand = onlineInventory.offhand;
+        this.compartments = ImmutableList.of(this.items, this.armor, this.offhand);
+
+        // Add existing viewers to new viewer list.
+        Inventory offlineInventory = offlinePlayer.getInventory();
+        // Remove self from listing - player is always a viewer of their own inventory, prevent duplicates.
+        offlineInventory.transaction.remove(offlinePlayer.getBukkitEntity());
+        onlineInventory.transaction.addAll(offlineInventory.transaction);
+
+        this.playerOnline = true;
+    }
+
+    @Override
+    public @NotNull CraftInventory getBukkitInventory() {
+        return this.inventory;
+    }
+
+    @Override
+    public void setPlayerOffline() {
+        this.playerOnline = false;
+    }
+
+    @Override
+    public @NotNull HumanEntity getPlayer() {
+        return this.player.getBukkitEntity();
+    }
+
+    private @NotNull ItemStack getRawItem(int i) {
+        if (i < 0) {
+            return ItemStack.EMPTY;
+        }
+
+        NonNullList<ItemStack> list;
+        for (Iterator<NonNullList<ItemStack>> iterator = this.compartments.iterator(); iterator.hasNext(); i -= list.size()) {
+            list = iterator.next();
+            if (i < list.size()) {
+                return list.get(i);
+            }
+        }
+
+        return ItemStack.EMPTY;
+    }
+
+    private void setRawItem(int i, @NotNull ItemStack itemStack) {
+        if (i < 0) {
+            return;
+        }
+
+        NonNullList<ItemStack> list;
+        for (Iterator<NonNullList<ItemStack>> iterator = this.compartments.iterator(); iterator.hasNext(); i -= list.size()) {
+            list = iterator.next();
+            if (i < list.size()) {
+                list.set(i, itemStack);
+            }
+        }
+    }
+
+    private record IndexedCompartment(@Nullable NonNullList<ItemStack> compartment, int index) {}
+
+    private @NotNull SpecialPlayerInventory.IndexedCompartment getIndexedContent(int index) {
+        if (index < items.size()) {
+            return new IndexedCompartment(items, getReversedItemSlotNum(index));
+        }
+
+        index -= items.size();
+
+        if (index < armor.size()) {
+            return new IndexedCompartment(armor, getReversedArmorSlotNum(index));
+        }
+
+        index -= armor.size();
+
+        if (index < offhand.size()) {
+            return new IndexedCompartment(offhand, index);
+        }
+
+        index -= offhand.size();
+
+        return new IndexedCompartment(null, index);
+    }
+
+    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;
+    }
+
+    private boolean contains(Predicate<ItemStack> predicate) {
+        return this.compartments.stream().flatMap(NonNullList::stream).anyMatch(predicate);
+    }
+
+    @Override
+    public List<ItemStack> getArmorContents() {
+        return this.armor;
+    }
+
+    @Override
+    public void onOpen(CraftHumanEntity who) {
+        this.player.getInventory().onOpen(who);
+    }
+
+    @Override
+    public void onClose(CraftHumanEntity who) {
+        this.player.getInventory().onClose(who);
+    }
+
+    @Override
+    public List<HumanEntity> getViewers() {
+        return this.player.getInventory().getViewers();
+    }
+
+    @Override
+    public InventoryHolder getOwner() {
+        return this.player.getBukkitEntity();
+    }
+
+    @Override
+    public int getMaxStackSize() {
+        return this.player.getInventory().getMaxStackSize();
+    }
+
+    @Override
+    public void setMaxStackSize(int size) {
+        this.player.getInventory().setMaxStackSize(size);
+    }
+
+    @Override
+    public Location getLocation() {
+        return this.player.getBukkitEntity().getLocation();
+    }
+
+    @Override
+    public boolean hasCustomName() {
+        return false;
+    }
+
+    @Override
+    public List<ItemStack> getContents() {
+        return this.compartments.stream().flatMap(Collection::stream).collect(Collectors.toList());
+    }
+
+    @Override
+    public ItemStack getSelected() {
+        return isHotbarSlot(this.selected) ? this.items.get(this.selected) : ItemStack.EMPTY;
+    }
+
+    private boolean hasRemainingSpaceForItem(ItemStack itemstack, ItemStack itemstack1) {
+        return !itemstack.isEmpty() && ItemStack.isSameItemSameTags(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.items.size(); ++i) {
+            ItemStack itemstack1 = this.getRawItem(i);
+            if (itemstack1.isEmpty()) {
+                return itemstack.getCount();
+            }
+
+            if (this.hasRemainingSpaceForItem(itemstack1, itemstack)) {
+                remains -= (itemstack1.getMaxStackSize() < this.getMaxStackSize() ? itemstack1.getMaxStackSize() : this.getMaxStackSize()) - itemstack1.getCount();
+            }
+
+            if (remains <= 0) {
+                return itemstack.getCount();
+            }
+        }
+
+        ItemStack offhandItemStack = this.getRawItem(this.items.size() + this.armor.size());
+        if (this.hasRemainingSpaceForItem(offhandItemStack, itemstack)) {
+            remains -= (offhandItemStack.getMaxStackSize() < this.getMaxStackSize() ? offhandItemStack.getMaxStackSize() : this.getMaxStackSize()) - offhandItemStack.getCount();
+        }
+
+        return remains <= 0 ? itemstack.getCount() : itemstack.getCount() - remains;
+    }
+
+    @Override
+    public int getFreeSlot() {
+        for(int i = 0; i < this.items.size(); ++i) {
+            if (this.items.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public void setPickedItem(ItemStack itemstack) {
+        int i = this.findSlotMatchingItem(itemstack);
+        if (isHotbarSlot(i)) {
+            this.selected = i;
+        } else if (i == -1) {
+            this.selected = this.getSuitableHotbarSlot();
+            if (!this.items.get(this.selected).isEmpty()) {
+                int j = this.getFreeSlot();
+                if (j != -1) {
+                    this.items.set(j, this.items.get(this.selected));
+                }
+            }
+
+            this.items.set(this.selected, itemstack);
+        } else {
+            this.pickSlot(i);
+        }
+
+    }
+
+    @Override
+    public void pickSlot(int i) {
+        this.selected = this.getSuitableHotbarSlot();
+        ItemStack itemstack = this.items.get(this.selected);
+        this.items.set(this.selected, this.items.get(i));
+        this.items.set(i, itemstack);
+    }
+
+    @Override
+    public int findSlotMatchingItem(ItemStack itemstack) {
+        for(int i = 0; i < this.items.size(); ++i) {
+            if (!this.items.get(i).isEmpty() && ItemStack.isSameItemSameTags(itemstack, this.items.get(i))) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int findSlotMatchingUnusedItem(ItemStack itemStack) {
+        for(int i = 0; i < this.items.size(); ++i) {
+            ItemStack localItem = this.items.get(i);
+            if (!this.items.get(i).isEmpty() && ItemStack.isSameItemSameTags(itemStack, this.items.get(i)) && !this.items.get(i).isDamaged() && !localItem.isEnchanted() && !localItem.hasCustomHoverName()) {
+                return i;
+            }
+        }
+
+        return -1;
+    }
+
+    @Override
+    public int getSuitableHotbarSlot() {
+        int i;
+        int j;
+        for(j = 0; j < 9; ++j) {
+            i = (this.selected + j) % 9;
+            if (this.items.get(i).isEmpty()) {
+                return i;
+            }
+        }
+
+        for(j = 0; j < 9; ++j) {
+            i = (this.selected + j) % 9;
+            if (!this.items.get(i).isEnchanted()) {
+                return i;
+            }
+        }
+
+        return this.selected;
+    }
+
+    @Override
+    public void swapPaint(double d0) {
+        if (d0 > 0.0D) {
+            d0 = 1.0D;
+        }
+
+        if (d0 < 0.0D) {
+            d0 = -1.0D;
+        }
+
+        this.selected = (int) (this.selected - d0);
+
+        while (this.selected < 0) {
+            this.selected += 9;
+        }
+
+        while(this.selected >= 9) {
+            this.selected -= 9;
+        }
+    }
+
+    @Override
+    public int clearOrCountMatchingItems(Predicate<ItemStack> predicate, int i, Container container) {
+        byte b0 = 0;
+        boolean flag = i == 0;
+        int j = b0 + ContainerHelper.clearOrCountMatchingItems(this, predicate, i - b0, flag);
+        j += ContainerHelper.clearOrCountMatchingItems(container, predicate, i - j, flag);
+        ItemStack itemstack = this.player.containerMenu.getCarried();
+        j += ContainerHelper.clearOrCountMatchingItems(itemstack, predicate, i - j, flag);
+        if (itemstack.isEmpty()) {
+            this.player.containerMenu.setCarried(ItemStack.EMPTY);
+        }
+
+        return j;
+    }
+
+    private int addResource(ItemStack itemstack) {
+        int i = this.getSlotWithRemainingSpace(itemstack);
+        if (i == -1) {
+            i = this.getFreeSlot();
+        }
+
+        return i == -1 ? itemstack.getCount() : this.addResource(i, itemstack);
+    }
+
+    private int addResource(int i, ItemStack itemstack) {
+        Item item = itemstack.getItem();
+        int j = itemstack.getCount();
+        ItemStack localItemStack = this.getRawItem(i);
+        if (localItemStack.isEmpty()) {
+            localItemStack = new ItemStack(item, 0);
+            if (itemstack.hasTag()) {
+                // hasTag ensures tag not null
+                //noinspection ConstantConditions
+                localItemStack.setTag(itemstack.getTag().copy());
+            }
+
+            this.setRawItem(i, localItemStack);
+        }
+
+        int k = Math.min(j, localItemStack.getMaxStackSize() - localItemStack.getCount());
+
+        if (k > this.getMaxStackSize() - localItemStack.getCount()) {
+            k = this.getMaxStackSize() - localItemStack.getCount();
+        }
+
+        if (k != 0) {
+            j -= k;
+            localItemStack.grow(k);
+            localItemStack.setPopTime(5);
+        }
+
+        return j;
+    }
+
+    @Override
+    public int getSlotWithRemainingSpace(ItemStack itemstack) {
+        if (this.hasRemainingSpaceForItem(this.getRawItem(this.selected), itemstack)) {
+            return this.selected;
+        } else if (this.hasRemainingSpaceForItem(this.getRawItem(40), itemstack)) {
+            return 40;
+        } else {
+            for(int i = 0; i < this.items.size(); ++i) {
+                if (this.hasRemainingSpaceForItem(this.items.get(i), itemstack)) {
+                    return i;
+                }
+            }
+
+            return -1;
+        }
+    }
+
+    @Override
+    public void tick() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                if (!compartment.get(i).isEmpty()) {
+                    compartment.get(i).inventoryTick(this.player.level(), this.player, i, this.selected == i);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public boolean add(ItemStack itemStack) {
+        return this.add(-1, itemStack);
+    }
+
+    @Override
+    public boolean add(int i, ItemStack itemStack) {
+        if (itemStack.isEmpty()) {
+            return false;
+        } else {
+            try {
+                if (itemStack.isDamaged()) {
+                    if (i == -1) {
+                        i = this.getFreeSlot();
+                    }
+
+                    if (i >= 0) {
+                        this.items.set(i, itemStack.copy());
+                        this.items.get(i).setPopTime(5);
+                        itemStack.setCount(0);
+                        return true;
+                    } else if (this.player.getAbilities().instabuild) {
+                        itemStack.setCount(0);
+                        return true;
+                    } else {
+                        return false;
+                    }
+                } else {
+                    int j;
+                    do {
+                        j = itemStack.getCount();
+                        if (i == -1) {
+                            itemStack.setCount(this.addResource(itemStack));
+                        } else {
+                            itemStack.setCount(this.addResource(i, itemStack));
+                        }
+                    } while(!itemStack.isEmpty() && itemStack.getCount() < j);
+
+                    if (itemStack.getCount() == j && this.player.getAbilities().instabuild) {
+                        itemStack.setCount(0);
+                        return true;
+                    } else {
+                        return itemStack.getCount() < j;
+                    }
+                }
+            } catch (Throwable var6) {
+                CrashReport crashReport = CrashReport.forThrowable(var6, "Adding item to inventory");
+                CrashReportCategory crashReportCategory = crashReport.addCategory("Item being added");
+                crashReportCategory.setDetail("Item ID", Item.getId(itemStack.getItem()));
+                crashReportCategory.setDetail("Item data", itemStack.getDamageValue());
+                crashReportCategory.setDetail("Item name", () -> itemStack.getHoverName().getString());
+                throw new ReportedException(crashReport);
+            }
+        }
+    }
+
+    @Override
+    public void placeItemBackInInventory(ItemStack itemStack) {
+        this.placeItemBackInInventory(itemStack, true);
+    }
+
+    @Override
+    public void placeItemBackInInventory(ItemStack itemStack, boolean flag) {
+        while(true) {
+            if (!itemStack.isEmpty()) {
+                int i = this.getSlotWithRemainingSpace(itemStack);
+                if (i == -1) {
+                    i = this.getFreeSlot();
+                }
+
+                if (i != -1) {
+                    int j = itemStack.getMaxStackSize() - this.getRawItem(i).getCount();
+                    if (this.add(i, itemStack.split(j)) && flag && this.player instanceof ServerPlayer) {
+                        ((ServerPlayer)this.player).connection.send(new ClientboundContainerSetSlotPacket(-2, 0, i, this.getRawItem(i)));
+                    }
+                    continue;
+                }
+
+                this.player.drop(itemStack, false);
+            }
+
+            return;
+        }
+    }
+
+    @Override
+    public ItemStack removeItem(int rawIndex, final int j) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null
+                || indexedCompartment.compartment().get(indexedCompartment.index()).isEmpty()) {
+            return ItemStack.EMPTY;
+        }
+
+        return ContainerHelper.removeItem(indexedCompartment.compartment(), indexedCompartment.index(), j);
+    }
+
+    @Override
+    public void removeItem(ItemStack itemStack) {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                if (compartment.get(i) == itemStack) {
+                    compartment.set(i, ItemStack.EMPTY);
+                    break;
+                }
+            }
+        }
+    }
+
+    @Override
+    public ItemStack removeItemNoUpdate(int rawIndex) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            return ItemStack.EMPTY;
+        }
+
+        ItemStack removed = indexedCompartment.compartment().set(indexedCompartment.index(), ItemStack.EMPTY);
+
+        if (removed.isEmpty()) {
+            return ItemStack.EMPTY;
+        }
+
+        return removed;
+    }
+
+    @Override
+    public void setItem(int rawIndex, final ItemStack itemStack) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            this.player.drop(itemStack, true);
+            return;
+        }
+
+        indexedCompartment.compartment().set(indexedCompartment.index(), itemStack);
+    }
+
+    @Override
+    public float getDestroySpeed(BlockState blockState) {
+        return this.items.get(this.selected).getDestroySpeed(blockState);
+    }
+
+    @Override
+    public ListTag save(ListTag listTag) {
+        for (int i = 0; i < this.items.size(); ++i) {
+            if (!this.items.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)i);
+                this.items.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        for (int i = 0; i < this.armor.size(); ++i) {
+            if (!this.armor.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)(i + 100));
+                this.armor.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        for (int i = 0; i < this.offhand.size(); ++i) {
+            if (!this.offhand.get(i).isEmpty()) {
+                CompoundTag compoundTag = new CompoundTag();
+                compoundTag.putByte("Slot", (byte)(i + 150));
+                this.offhand.get(i).save(compoundTag);
+                listTag.add(compoundTag);
+            }
+        }
+
+        return listTag;
+    }
+
+    @Override
+    public void load(ListTag listTag) {
+        this.items.clear();
+        this.armor.clear();
+        this.offhand.clear();
+
+        for(int i = 0; i < listTag.size(); ++i) {
+            CompoundTag compoundTag = listTag.getCompound(i);
+            int j = compoundTag.getByte("Slot") & 255;
+            ItemStack itemstack = ItemStack.of(compoundTag);
+            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.offhand.size() + 150) {
+                    this.offhand.set(j - 150, itemstack);
+                }
+            }
+        }
+
+    }
+
+    @Override
+    public int getContainerSize() {
+        return 45;
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return !contains(itemStack -> !itemStack.isEmpty());
+    }
+
+    @Override
+    public ItemStack getItem(int rawIndex) {
+        IndexedCompartment indexedCompartment = getIndexedContent(rawIndex);
+
+        if (indexedCompartment.compartment() == null) {
+            return ItemStack.EMPTY;
+        }
+
+        return indexedCompartment.compartment().get(indexedCompartment.index());
+    }
+
+    @Override
+    public Component getName() {
+        return this.player.getName();
+    }
+
+    @Override
+    public ItemStack getArmor(int index) {
+        return this.armor.get(index);
+    }
+
+    @Override
+    public void hurtArmor(DamageSource damagesource, float damage, int[] armorIndices) {
+        if (damage > 0.0F) {
+            damage /= 4.0F;
+            if (damage < 1.0F) {
+                damage = 1.0F;
+            }
+
+            for (int index : armorIndices) {
+                ItemStack itemstack = this.armor.get(index);
+                if ((!damagesource.is(DamageTypeTags.IS_FIRE) || !itemstack.getItem().isFireResistant()) && itemstack.getItem() instanceof ArmorItem) {
+                    itemstack.hurtAndBreak((int) damage, this.player, localPlayer -> localPlayer.broadcastBreakEvent(EquipmentSlot.byTypeAndIndex(EquipmentSlot.Type.ARMOR, index)));
+                }
+            }
+        }
+    }
+
+    @Override
+    public void dropAll() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            for (int i = 0; i < compartment.size(); ++i) {
+                ItemStack itemstack = compartment.get(i);
+                if (!itemstack.isEmpty()) {
+                    this.player.drop(itemstack, true, false);
+                    compartment.set(i, ItemStack.EMPTY);
+                }
+            }
+        }
+    }
+
+    @Override
+    public void setChanged() {
+        super.setChanged();
+    }
+
+    @Override
+    public int getTimesChanged() {
+        return super.getTimesChanged();
+    }
+
+    @Override
+    public boolean stillValid(Player player) {
+        return true;
+    }
+
+    @Override
+    public boolean contains(ItemStack itemstack) {
+        return contains(itemStack -> itemStack.isEmpty() && itemStack.is(itemstack.getItem()));
+    }
+
+    @Override
+    public boolean contains(TagKey<Item> tagKey) {
+
+        return contains(itemStack -> !itemStack.isEmpty() && itemStack.is(tagKey));
+    }
+
+    @Override
+    public void replaceWith(Inventory inventory) {
+        Function<Integer, ItemStack> getter;
+
+        if (inventory instanceof SpecialPlayerInventory specialPlayerInventory) {
+            getter = specialPlayerInventory::getRawItem;
+        } else {
+            getter = inventory::getItem;
+        }
+
+        for(int i = 0; i < this.getContainerSize(); ++i) {
+            this.setRawItem(i, getter.apply(i));
+        }
+
+        this.selected = inventory.selected;
+    }
+
+    @Override
+    public void clearContent() {
+        for (NonNullList<ItemStack> compartment : this.compartments) {
+            compartment.clear();
+        }
+    }
+
+    @Override
+    public void fillStackedContents(StackedContents stackedContents) {
+        for (ItemStack itemstack : this.items) {
+            stackedContents.accountSimpleStack(itemstack);
+        }
+    }
+
+    @Override
+    public ItemStack removeFromSelected(boolean dropWholeStack) {
+        ItemStack itemstack = this.getSelected();
+        return itemstack.isEmpty() ? ItemStack.EMPTY : this.removeItem(this.selected, dropWholeStack ? itemstack.getCount() : 1);
+    }
+
+}
@@ -1,250 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_R3;
-
-import com.lishid.openinv.internal.IAnySilentContainer;
-import java.lang.reflect.Field;
-import net.minecraft.server.v1_8_R3.AxisAlignedBB;
-import net.minecraft.server.v1_8_R3.Block;
-import net.minecraft.server.v1_8_R3.BlockChest;
-import net.minecraft.server.v1_8_R3.BlockEnderChest;
-import net.minecraft.server.v1_8_R3.BlockPosition;
-import net.minecraft.server.v1_8_R3.Entity;
-import net.minecraft.server.v1_8_R3.EntityOcelot;
-import net.minecraft.server.v1_8_R3.EntityPlayer;
-import net.minecraft.server.v1_8_R3.EnumDirection;
-import net.minecraft.server.v1_8_R3.ITileInventory;
-import net.minecraft.server.v1_8_R3.InventoryEnderChest;
-import net.minecraft.server.v1_8_R3.InventoryLargeChest;
-import net.minecraft.server.v1_8_R3.PlayerInteractManager;
-import net.minecraft.server.v1_8_R3.StatisticList;
-import net.minecraft.server.v1_8_R3.TileEntity;
-import net.minecraft.server.v1_8_R3.TileEntityChest;
-import net.minecraft.server.v1_8_R3.TileEntityEnderChest;
-import net.minecraft.server.v1_8_R3.World;
-import net.minecraft.server.v1_8_R3.WorldSettings.EnumGamemode;
-import org.bukkit.Material;
-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 (Exception e) {
-            System.err.println("[OpenInv] Unable to directly write player gamemode! SilentChest will fail.");
-            e.printStackTrace();
-        }
-    }
-
-    @Override
-    public boolean isAnySilentContainer(@NotNull org.bukkit.block.Block bukkitBlock) {
-        return bukkitBlock.getType() == Material.ENDER_CHEST || bukkitBlock.getState() instanceof org.bukkit.block.Chest;
-    }
-
-    @Override
-    public boolean isAnyContainerNeeded(@NotNull Player bukkitPlayer, @NotNull org.bukkit.block.Block bukkitBlock) {
-
-        World world = PlayerDataManager.getHandle(bukkitPlayer).world;
-        BlockPosition blockPosition = new BlockPosition(bukkitBlock.getX(), bukkitBlock.getY(), bukkitBlock.getZ());
-        Block block = world.getType(blockPosition).getBlock();
-
-        if (block instanceof BlockEnderChest) {
-            // Ender chests are not blocked by ocelots.
-            return world.getType(blockPosition.up()).getBlock().c();
-        }
-
-        // Check if chest is blocked or has an ocelot on top
-        if (isBlockedChest(world, blockPosition)) {
-            return true;
-        }
-
-        // Check for matching adjacent chests that are blocked or have an ocelot on top
-        for (EnumDirection localEnumDirection : EnumDirection.EnumDirectionLimit.HORIZONTAL) {
-            BlockPosition localBlockPosition = blockPosition.shift(localEnumDirection);
-            Block localBlock = world.getType(localBlockPosition).getBlock();
-
-            if (localBlock != block) {
-                continue;
-            }
-
-            TileEntity localTileEntity = world.getTileEntity(localBlockPosition);
-            if (!(localTileEntity instanceof TileEntityChest)) {
-                continue;
-            }
-
-            if (isBlockedChest(world, localBlockPosition)) {
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-    private boolean isBlockedChest(World world, BlockPosition blockPosition) {
-        // For reference, loot at net.minecraft.server.BlockChest
-        return world.getType(blockPosition.up()).getBlock().c() || hasOcelotOnTop(world, blockPosition);
-    }
-
-    private boolean hasOcelotOnTop(World world, BlockPosition blockPosition) {
-        for (Entity localEntity : world.a(EntityOcelot.class,
-                new AxisAlignedBB(blockPosition.getX(), blockPosition.getY() + 1,
-                        blockPosition.getZ(), blockPosition.getX() + 1, blockPosition.getY() + 2,
-                        blockPosition.getZ() + 1))) {
-            EntityOcelot localEntityOcelot = (EntityOcelot) localEntity;
-            if (localEntityOcelot.isSitting()) {
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-    @Override
-    public boolean activateContainer(@NotNull Player bukkitPlayer, boolean silent, @NotNull org.bukkit.block.Block bukkitBlock) {
-
-        EntityPlayer player = PlayerDataManager.getHandle(bukkitPlayer);
-
-        // Silent ender chest is pretty much API-only
-        if (silent && bukkitBlock.getType() == Material.ENDER_CHEST) {
-            bukkitPlayer.openInventory(bukkitPlayer.getEnderChest());
-            player.b(StatisticList.V);
-            return true;
-        }
-
-        World world = player.world;
-        BlockPosition blockPosition = new BlockPosition(bukkitBlock.getX(), bukkitBlock.getY(), bukkitBlock.getZ());
-        Object 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(enderChest);
-            player.b(StatisticList.V);
-            return true;
-        }
-
-        if (!(tile instanceof ITileInventory)) {
-            return false;
-        }
-
-        ITileInventory tileInventory = (ITileInventory) tile;
-        Block block = world.getType(blockPosition).getBlock();
-
-        if (block instanceof BlockChest) {
-            for (EnumDirection localEnumDirection : EnumDirection.EnumDirectionLimit.HORIZONTAL) {
-                BlockPosition localBlockPosition = blockPosition.shift(localEnumDirection);
-                Block localBlock = world.getType(localBlockPosition).getBlock();
-
-                if (localBlock != block) {
-                    continue;
-                }
-
-                TileEntity localTileEntity = world.getTileEntity(localBlockPosition);
-                if (!(localTileEntity instanceof TileEntityChest)) {
-                    continue;
-                }
-
-                if ((localEnumDirection == EnumDirection.WEST) || (localEnumDirection == EnumDirection.NORTH)) {
-                    tileInventory = new InventoryLargeChest("container.chestDouble",
-                            (TileEntityChest) localTileEntity, tileInventory);
-                } else {
-                    tileInventory = new InventoryLargeChest("container.chestDouble",
-                            tileInventory, (TileEntityChest) localTileEntity);
-                }
-                break;
-            }
-
-            BlockChest blockChest = (BlockChest) block;
-            if (blockChest.b == 0) {
-                player.b(StatisticList.aa);
-            } else if (blockChest.b == 1) {
-                player.b(StatisticList.U);
-            }
-        }
-
-        // AnyChest only - SilentChest not active, container unsupported, or unnecessary.
-        if (!silent || player.playerInteractManager.getGameMode() == EnumGamemode.SPECTATOR) {
-            player.openContainer(tileInventory);
-            return true;
-        }
-
-        // SilentChest requires access to setting players' gamemode directly.
-        if (this.playerInteractManagerGamemode == null) {
-            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:
-                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 (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
-}
@@ -1,116 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_R3;
-
-import com.lishid.openinv.internal.IPlayerDataManager;
-import com.lishid.openinv.internal.ISpecialInventory;
-import com.mojang.authlib.GameProfile;
-import net.minecraft.server.v1_8_R3.ChatComponentText;
-import net.minecraft.server.v1_8_R3.EntityPlayer;
-import net.minecraft.server.v1_8_R3.MinecraftServer;
-import net.minecraft.server.v1_8_R3.PacketPlayOutChat;
-import net.minecraft.server.v1_8_R3.PlayerInteractManager;
-import org.bukkit.Bukkit;
-import org.bukkit.OfflinePlayer;
-import org.bukkit.Server;
-import org.bukkit.craftbukkit.v1_8_R3.CraftServer;
-import org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer;
-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 {
-
-    @NotNull
-    public static EntityPlayer getHandle(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;
-    }
-
-    @Nullable
-    @Override
-    public Player loadPlayer(@NotNull OfflinePlayer offline) {
-        // Ensure the player has data
-        if (!offline.hasPlayedBefore()) {
-            return null;
-        }
-
-        // Create a profile and entity to load the player data
-        GameProfile profile = new GameProfile(offline.getUniqueId(), offline.getName());
-        MinecraftServer server = ((CraftServer) Bukkit.getServer()).getServer();
-        EntityPlayer entity = new EntityPlayer(server, server.getWorldServer(0), profile,
-                new PlayerInteractManager(server.getWorldServer(0)));
-
-        // Get the bukkit entity
-        Player target = entity.getBukkitEntity();
-        if (target != null) {
-            // Load data
-            target.loadData();
-        }
-        // Return the entity
-        return target;
-    }
-
-    @Nullable
-	@Override
-    public InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory) {
-        return player.openInventory(inventory.getBukkitInventory());
-    }
-
-    @Override
-    public void sendSystemMessage(@NotNull Player player, @NotNull String message) {
-        int newline = message.indexOf('\n');
-        if (newline != -1) {
-            // No newlines in action bar chat.
-            message = message.substring(0, newline);
-        }
-
-        if (message.isEmpty()) {
-            return;
-        }
-
-        EntityPlayer nmsPlayer = getHandle(player);
-
-        // For action bar chat, color codes are still supported but JSON text color is not allowed. Do not convert text.
-        if (nmsPlayer.playerConnection != null) {
-            nmsPlayer.playerConnection.sendPacket(new PacketPlayOutChat(new ChatComponentText(message), (byte) 2));
-        }
-    }
-
-    @NotNull
-    @Override
-    public String getLocale(Player player) {
-        return getHandle(player).locale;
-    }
-
-}
@@ -1,83 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_R3;
-
-import com.lishid.openinv.internal.ISpecialEnderChest;
-import java.lang.reflect.Field;
-import net.minecraft.server.v1_8_R3.EntityPlayer;
-import net.minecraft.server.v1_8_R3.IInventory;
-import net.minecraft.server.v1_8_R3.InventoryEnderChest;
-import net.minecraft.server.v1_8_R3.InventorySubcontainer;
-import org.bukkit.craftbukkit.v1_8_R3.inventory.CraftInventory;
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.Inventory;
-import org.jetbrains.annotations.NotNull;
-
-public class SpecialEnderChest extends InventorySubcontainer implements IInventory, ISpecialEnderChest {
-
-    private final InventoryEnderChest enderChest;
-    private final CraftInventory inventory = new CraftInventory(this);
-    private boolean playerOnline;
-
-    public SpecialEnderChest(Player player, Boolean online) {
-        super(PlayerDataManager.getHandle(player).getEnderChest().getName(),
-                PlayerDataManager.getHandle(player).getEnderChest().hasCustomName(),
-                PlayerDataManager.getHandle(player).getEnderChest().getSize());
-        this.playerOnline = online;
-        EntityPlayer nmsPlayer = PlayerDataManager.getHandle(player);
-        this.enderChest = nmsPlayer.getEnderChest();
-        this.bukkitOwner = nmsPlayer.getBukkitEntity();
-        this.items = enderChest.getContents();
-    }
-
-    @Override
-    public @NotNull Inventory getBukkitInventory() {
-        return inventory;
-    }
-
-    @Override
-    public void setPlayerOnline(@NotNull Player player) {
-        if (!playerOnline) {
-            try {
-                EntityPlayer nmsPlayer = PlayerDataManager.getHandle(player);
-                this.bukkitOwner = nmsPlayer.getBukkitEntity();
-                InventoryEnderChest playerEnderChest = nmsPlayer.getEnderChest();
-                Field field = playerEnderChest.getClass().getField("items");
-                field.setAccessible(true);
-                field.set(playerEnderChest, this.items);
-            } catch (Exception ignored) {}
-            playerOnline = true;
-        }
-    }
-
-    @Override
-    public void setPlayerOffline() {
-        playerOnline = false;
-    }
-
-    @Override
-    public boolean isInUse() {
-        return !this.getViewers().isEmpty();
-    }
-
-    @Override
-    public void update() {
-        super.update();
-        enderChest.update();
-    }
-
-}
@@ -1,230 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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_R3;
-
-import com.lishid.openinv.internal.ISpecialPlayerInventory;
-import net.minecraft.server.v1_8_R3.ItemStack;
-import net.minecraft.server.v1_8_R3.PlayerInventory;
-import org.bukkit.craftbukkit.v1_8_R3.inventory.CraftInventory;
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.Inventory;
-import org.jetbrains.annotations.NotNull;
-
-public class SpecialPlayerInventory extends PlayerInventory implements ISpecialPlayerInventory {
-
-    private final ItemStack[] extra = new ItemStack[5];
-    private final CraftInventory inventory = new CraftInventory(this);
-    private boolean playerOnline;
-
-    public SpecialPlayerInventory(Player bukkitPlayer, Boolean online) {
-        super(PlayerDataManager.getHandle(bukkitPlayer));
-        this.playerOnline = online;
-        this.items = player.inventory.items;
-        this.armor = player.inventory.armor;
-    }
-
-    @Override
-    public @NotNull Inventory getBukkitInventory() {
-        return inventory;
-    }
-
-    @Override
-    public void setPlayerOnline(@NotNull Player player) {
-        if (!playerOnline) {
-            this.player = PlayerDataManager.getHandle(player);
-            this.player.inventory.items = this.items;
-            this.player.inventory.armor = this.armor;
-            playerOnline = true;
-        }
-    }
-
-    @Override
-    public void setPlayerOffline() {
-        playerOnline = false;
-    }
-
-    @Override
-    public boolean isInUse() {
-        return !this.getViewers().isEmpty();
-    }
-
-    @Override
-    public ItemStack[] getContents() {
-        ItemStack[] contents = new ItemStack[getSize()];
-        System.arraycopy(items, 0, contents, 0, items.length);
-        System.arraycopy(armor, 0, contents, items.length, armor.length);
-        return contents;
-    }
-
-    @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].cloneAndSubtract(j);
-                if (is[i].count == 0) {
-                    is[i] = null;
-                }
-
-                return itemstack;
-            }
-        }
-
-        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;
-        }
-
-        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) {
-            player.drop(itemstack, true);
-            itemstack = null;
-        }
-
-        is[i] = itemstack;
-
-        player.defaultContainer.b();
-    }
-
-    private int getReversedItemSlotNum(int i) {
-        if (i >= 27) {
-            return i - 27;
-        }
-        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;
-        }
-        return i;
-    }
-
-    @Override
-    public String getName() {
-        if (player.getName().length() > 16) {
-            return player.getName().substring(0, 16);
-        }
-        return player.getName();
-    }
-
-    @Override
-    public boolean hasCustomName() {
-        return true;
-    }
-
-}
@@ -1,5 +1,5 @@
 <!--
-  ~ Copyright (C) 2011-2020 lishid. All rights reserved.
+  ~ 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
@@ -19,9 +19,9 @@
  <modelVersion>4.0.0</modelVersion>

  <parent>
-    <groupId>com.lishid</groupId>
    <artifactId>openinvparent</artifactId>
-    <version>4.1.1-SNAPSHOT</version>
+    <groupId>com.lishid</groupId>
+    <version>4.4.0</version>
  </parent>

  <artifactId>openinvplugincore</artifactId>
@@ -29,15 +29,16 @@

  <dependencies>
    <dependency>
-      <groupId>com.lishid</groupId>
      <artifactId>openinvapi</artifactId>
-      <version>4.1.1-SNAPSHOT</version>
+      <groupId>com.lishid</groupId>
+    </dependency>
+    <dependency>
+      <artifactId>annotations</artifactId>
+      <groupId>org.jetbrains</groupId>
    </dependency>
    <dependency>
-      <groupId>org.spigotmc</groupId>
      <artifactId>spigot-api</artifactId>
-      <version>1.15.2-R0.1-SNAPSHOT</version>
-      <scope>provided</scope>
+      <groupId>org.spigotmc</groupId>
    </dependency>
  </dependencies>

@@ -48,31 +49,13 @@
        <filtering>true</filtering>
      </resource>
    </resources>
+
    <plugins>
      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-shade-plugin</artifactId>
-        <version>3.2.2</version>
-        <configuration>
-          <minimizeJar>true</minimizeJar>
-        </configuration>
-        <executions>
-          <execution>
-            <phase>package</phase>
-            <goals>
-              <goal>shade</goal>
-            </goals>
-          </execution>
-        </executions>
      </plugin>
-
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-        </configuration>
      </plugin>
    </plugins>
  </build>
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * Copyright (C) 2011-2023 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
@@ -14,52 +14,69 @@
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

-package com.lishid.openinv.util;
+package com.lishid.openinv;

 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 com.lishid.openinv.util.InventoryAccess;
 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 {
+class InternalAccessor {

-    private final Plugin plugin;
+    private final @NotNull Plugin plugin;
    private final String version;
    private boolean supported = false;
    private IPlayerDataManager playerDataManager;
    private IAnySilentContainer anySilentContainer;

-    public InternalAccessor(final Plugin plugin) {
+    InternalAccessor(@NotNull Plugin plugin) {
        this.plugin = plugin;

        String packageName = plugin.getServer().getClass().getPackage().getName();
        this.version = packageName.substring(packageName.lastIndexOf('.') + 1);

        try {
-            // TODO: implement support for CraftMagicNumbers#getMappingsVersion
            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.isUseable();
+            this.supported = InventoryAccess.isUsable();
        } catch (Exception ignored) {}
    }

-    private <T> T createObject(final Class<? extends T> assignableClass, final String className,
-            final Object... params) throws ClassCastException, ClassNotFoundException,
-            InstantiationException, IllegalAccessException, IllegalArgumentException,
-            InvocationTargetException, NoSuchMethodException, SecurityException {
+    public String getReleasesLink() {
+
+        return switch (version) {
+            case "1_4_5", "1_4_6", "v1_4_R1", "v1_5_R2", "v1_5_R3", "v1_6_R1", "v1_6_R2", "v1_6_R3",
+                    "v1_7_R1", "v1_7_R2", "v1_7_R3", "v1_7_R4", "v1_8_R1", "v1_8_R2",
+                    "v1_9_R1", "v1_9_R2", "v1_10_R1", "v1_11_R1", "v1_12_R1"
+                    -> "https://github.com/lishid/OpenInv/releases/tag/4.0.0 (OpenInv-legacy)";
+            case "v1_13_R1" -> "https://github.com/lishid/OpenInv/releases/tag/4.0.0";
+            case "v1_13_R2" -> "https://github.com/lishid/OpenInv/releases/tag/4.0.7";
+            case "v1_14_R1" -> "https://github.com/lishid/OpenInv/releases/tag/4.1.1";
+            case "v1_16_R1" -> "https://github.com/lishid/OpenInv/releases/tag/4.1.4";
+            case "v1_8_R3", "v1_15_R1", "v1_16_R2" -> "https://github.com/lishid/OpenInv/releases/tag/4.1.5";
+            case "v1_16_R3" -> "https://github.com/Jikoo/OpenInv/releases/tag/4.1.8";
+            case "v1_17_R1", "v1_18_R1" -> "https://github.com/Jikoo/OpenInv/releases/tag/4.1.10";
+            case "v1_19_R1" -> "https://github.com/Jikoo/OpenInv/releases/tag/4.2.2";
+            case "v1_18_R2", "v1_19_R2" -> "https://github.com/Jikoo/OpenInv/releases/tag/4.3.0";
+            default -> "https://github.com/Jikoo/OpenInv/releases";
+        };
+    }
+
+    private @NotNull <T> T createObject(
+            @NotNull Class<? extends T> assignableClass,
+            @NotNull String className,
+            @NotNull Object @NotNull ... params)
+            throws ClassCastException, ReflectiveOperationException {
        // 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) {
@@ -90,7 +107,24 @@ public class InternalAccessor {
        String message = builder.append(']').toString();
        this.plugin.getLogger().warning(message);

-        throw new IllegalArgumentException(message);
+        throw new NoSuchMethodException(message);
+    }
+
+    private @NotNull <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;
+        }
    }

    /**
@@ -99,7 +133,7 @@ public class InternalAccessor {
     * @return the IAnySilentContainer
     * @throws IllegalStateException if server version is unsupported
     */
-    public IAnySilentContainer getAnySilentContainer() {
+    public @NotNull IAnySilentContainer getAnySilentContainer() {
        if (!this.supported) {
            throw new IllegalStateException(String.format("Unsupported server version %s!", this.version));
        }
@@ -112,7 +146,7 @@ public class InternalAccessor {
     * @return the IPlayerDataManager
     * @throws IllegalStateException if server version is unsupported
     */
-    public IPlayerDataManager getPlayerDataManager() {
+    public @NotNull IPlayerDataManager getPlayerDataManager() {
        if (!this.supported) {
            throw new IllegalStateException(String.format("Unsupported server version %s!", this.version));
        }
@@ -120,13 +154,12 @@ public class InternalAccessor {
    }

    /**
-     * Gets the server implementation version. If not initialized, returns the string "null"
-     * instead.
+     * Gets the server implementation version.
     *
-     * @return the version, or "null"
+     * @return the version
     */
-    public String getVersion() {
-        return this.version != null ? this.version : "null";
+    public @NotNull String getVersion() {
+        return this.version;
    }

    /**
@@ -148,14 +181,7 @@ public class InternalAccessor {
     * @throws InstantiationException if the ISpecialEnderChest could not be instantiated
     */
    public ISpecialEnderChest newSpecialEnderChest(final Player player, final boolean online) throws InstantiationException {
-        if (!this.supported) {
-            throw new IllegalStateException(String.format("Unsupported server version %s!", this.version));
-        }
-        try {
-            return this.createObject(ISpecialEnderChest.class, "SpecialEnderChest", player, online);
-        } catch (Exception e) {
-            throw new InstantiationException(String.format("Unable to create a new ISpecialEnderChest: %s", e.getMessage()));
-        }
+        return this.createSpecialInventory(ISpecialEnderChest.class, "SpecialEnderChest", player, online);
    }

    /**
@@ -167,14 +193,7 @@ public class InternalAccessor {
     * @throws InstantiationException if the ISpecialPlayerInventory could not be instantiated
     */
    public ISpecialPlayerInventory newSpecialPlayerInventory(final Player player, final boolean online) throws InstantiationException {
-        if (!this.supported) {
-            throw new IllegalStateException(String.format("Unsupported server version %s!", this.version));
-        }
-        try {
-            return this.createObject(ISpecialPlayerInventory.class, "SpecialPlayerInventory", player, online);
-        } catch (Exception e) {
-            throw new InstantiationException(String.format("Unable to create a new ISpecialPlayerInventory: %s", e.getMessage()));
-        }
+        return this.createSpecialInventory(ISpecialPlayerInventory.class, "SpecialPlayerInventory", player, online);
    }

 }
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2011-2023 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.ISpecialInventory;
+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.InventoryHolder;
+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
+ */
+record InventoryListener(OpenInv plugin) implements Listener {
+
+    @EventHandler
+    private void onInventoryClose(@NotNull final InventoryCloseEvent event) {
+        if (!(event.getPlayer() instanceof Player player)) {
+            return;
+        }
+
+        InventoryHolder holder = event.getInventory().getHolder();
+        if (this.plugin.getSilentContainerStatus(player)
+                && holder != null
+                && this.plugin.getAnySilentContainer().isAnySilentContainer(holder)) {
+            this.plugin.getAnySilentContainer().deactivateContainer(player);
+        }
+
+        ISpecialInventory specialInventory = InventoryAccess.getEnderChest(event.getInventory());
+        if (specialInventory != null) {
+            this.plugin.handleCloseInventory(specialInventory);
+        } else {
+            specialInventory = InventoryAccess.getPlayerInventory(event.getInventory());
+            if (specialInventory != null) {
+                this.plugin.handleCloseInventory(specialInventory);
+            }
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    private 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)
+    private 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());
+    }
+
+}
@@ -0,0 +1,41 @@
+/*
+ * 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;
+
+import com.lishid.openinv.internal.ISpecialInventory;
+import com.lishid.openinv.util.Permissions;
+import java.util.Map;
+import java.util.UUID;
+import java.util.function.BiFunction;
+import java.util.function.Consumer;
+import org.jetbrains.annotations.NotNull;
+
+record OfflineHandler(
+        @NotNull BiFunction<Map<UUID, ? extends ISpecialInventory>, UUID, ISpecialInventory> fetch,
+        @NotNull Consumer<@NotNull ISpecialInventory> handle) {
+
+    static final OfflineHandler REMOVE_AND_CLOSE = new OfflineHandler(
+            Map::remove,
+            inventory -> OpenInv.ejectViewers(inventory, viewer -> true)
+    );
+
+    static final OfflineHandler REQUIRE_PERMISSIONS = new OfflineHandler(
+            Map::get,
+            inventory -> OpenInv.ejectViewers(inventory, viewer -> !Permissions.OPENOFFLINE.hasPermission(viewer))
+    );
+
+}
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -14,9 +14,8 @@
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

-package com.lishid.openinv.listeners;
+package com.lishid.openinv;

-import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.util.Permissions;
 import org.bukkit.entity.Player;
 import org.bukkit.event.Event.Result;
@@ -28,32 +27,33 @@ import org.bukkit.event.player.PlayerChangedWorldEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
+import org.jetbrains.annotations.NotNull;

-public class PlayerListener implements Listener {
-
-    private final OpenInv plugin;
-
-    public PlayerListener(OpenInv plugin) {
-        this.plugin = plugin;
-    }
+record PlayerListener(OpenInv plugin) implements Listener {

    @EventHandler(priority = EventPriority.LOWEST)
-    public void onPlayerJoin(final PlayerJoinEvent event) {
+    private void onPlayerJoin(@NotNull PlayerJoinEvent event) {
        plugin.setPlayerOnline(event.getPlayer());
    }

    @EventHandler(priority = EventPriority.MONITOR)
-    public void onPlayerQuit(PlayerQuitEvent event) {
+    private void onPlayerQuit(@NotNull PlayerQuitEvent event) {
        plugin.setPlayerOffline(event.getPlayer());
    }

    @EventHandler
-    public void onWorldChange(PlayerChangedWorldEvent event) {
+    private void onWorldChange(@NotNull PlayerChangedWorldEvent event) {
        plugin.changeWorld(event.getPlayer());
    }

    @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
-    public void onPlayerInteract(PlayerInteractEvent event) {
+    private void onPlayerInteract(@NotNull 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())) {
@@ -61,23 +61,23 @@ public class PlayerListener implements Listener {
        }

        Player player = event.getPlayer();
-        boolean any = Permissions.ANYCHEST.hasPermission(player) && plugin.getPlayerAnyChestStatus(player);
-        boolean needsAny = plugin.getAnySilentContainer().isAnyContainerNeeded(player, event.getClickedBlock());
+        boolean any = Permissions.ANYCHEST.hasPermission(player) && plugin.getAnyContainerStatus(player);
+        boolean needsAny = plugin.getAnySilentContainer().isAnyContainerNeeded(event.getClickedBlock());

        if (!any && needsAny) {
            return;
        }

-        boolean silent = Permissions.SILENT.hasPermission(player) && plugin.getPlayerSilentChestStatus(player);
+        boolean silent = Permissions.SILENT.hasPermission(player) && plugin.getSilentContainerStatus(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()) {
+                if (silent && needsAny) {
                    plugin.sendSystemMessage(player, "messages.info.containerBlockedSilent");
-                } else if (needsAny && plugin.notifyAnyChest()) {
+                } else if (needsAny) {
                    plugin.sendSystemMessage(player, "messages.info.containerBlocked");
-                } else if (silent && plugin.notifySilentChest()) {
+                } else if (silent) {
                    plugin.sendSystemMessage(player, "messages.info.containerSilent");
                }
            }
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -18,10 +18,11 @@ package com.lishid.openinv.commands;

 import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.util.TabCompleter;
+import com.lishid.openinv.util.lang.Replacement;
 import java.util.Collections;
 import java.util.List;
 import java.util.function.BiConsumer;
-import java.util.function.Function;
+import java.util.function.Predicate;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
@@ -39,15 +40,14 @@ public class ContainerSettingCommand implements TabExecutor {

    @Override
    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
-        if (!(sender instanceof Player)) {
+        if (!(sender instanceof Player player)) {
            plugin.sendMessage(sender, "messages.error.consoleUnsupported");
            return true;
        }

-        Player player = (Player) sender;
        boolean any = command.getName().startsWith("any");
-        Function<Player, Boolean> getSetting = any ? plugin::getPlayerAnyChestStatus : plugin::getPlayerSilentChestStatus;
-        BiConsumer<OfflinePlayer, Boolean> setSetting = any ? plugin::setPlayerAnyChestStatus : plugin::setPlayerSilentChestStatus;
+        Predicate<Player> getSetting = any ? plugin::getAnyContainerStatus : plugin::getSilentContainerStatus;
+        BiConsumer<OfflinePlayer, Boolean> setSetting = any ? plugin::setAnyContainerStatus : plugin::setSilentContainerStatus;

        if (args.length > 0) {
            args[0] = args[0].toLowerCase();
@@ -62,15 +62,19 @@ public class ContainerSettingCommand implements TabExecutor {
            }

        } else {
-            setSetting.accept(player, !getSetting.apply(player));
+            setSetting.accept(player, !getSetting.test(player));
        }

-        String onOff = plugin.getLocalizedMessage(player, getSetting.apply(player) ? "messages.info.on" : "messages.info.off");
+        String onOff = plugin.getLocalizedMessage(player, getSetting.test(player) ? "messages.info.on" : "messages.info.off");
        if (onOff == null) {
-            onOff = String.valueOf(getSetting.apply(player));
+            onOff = String.valueOf(getSetting.test(player));
        }

-        plugin.sendMessage(sender, "messages.info.settingState","%setting%", any ? "AnyContainer" : "SilentContainer", "%state%", onOff);
+        plugin.sendMessage(
+                sender,
+                "messages.info.settingState",
+                new Replacement("%setting%", any ? "AnyContainer" : "SilentContainer"),
+                new Replacement("%state%", onOff));

        return true;
    }
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -20,12 +20,15 @@ import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.internal.ISpecialInventory;
 import com.lishid.openinv.util.Permissions;
 import com.lishid.openinv.util.TabCompleter;
+import com.lishid.openinv.util.lang.Replacement;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
+import java.util.StringJoiner;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
+import org.bukkit.command.PluginCommand;
 import org.bukkit.command.TabExecutor;
 import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitRunnable;
@@ -43,32 +46,35 @@ public class OpenInvCommand implements TabExecutor {

    @Override
    public boolean onCommand(@NotNull final CommandSender sender, @NotNull final Command command, @NotNull final String label, @NotNull final String[] args) {
-        if (!(sender instanceof Player)) {
+        boolean openInv = command.getName().equals("openinv");
+
+        if (openInv && args.length > 0 && (args[0].equalsIgnoreCase("help") || args[0].equals("?"))) {
+            this.showHelp(sender);
+            return true;
+        }
+
+        if (!(sender instanceof Player 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;
-        }
+        String noArgValue;
+        if (plugin.noArgsOpensSelf()) {
+            noArgValue = player.getUniqueId().toString();
+        } else {
+            // History management
+            noArgValue = (openInv ? this.openInvHistory : this.openEnderHistory).get(player);

-        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);
+            if (noArgValue == null || noArgValue.isEmpty()) {
+                noArgValue = player.getUniqueId().toString();
+                (openInv ? this.openInvHistory : this.openEnderHistory).put(player, noArgValue);
+            }
        }

        final String name;

-        // Read from history if target is not named
        if (args.length < 1) {
-            name = history;
+            name = noArgValue;
        } else {
            name = args[0];
        }
@@ -89,7 +95,7 @@ public class OpenInvCommand implements TabExecutor {
                        if (!player.isOnline()) {
                            return;
                        }
-                        OpenInvCommand.this.openInventory(player, offlinePlayer, openinv);
+                        OpenInvCommand.this.openInventory(player, offlinePlayer, openInv);
                    }
                }.runTask(OpenInvCommand.this.plugin);

@@ -99,15 +105,53 @@ public class OpenInvCommand implements TabExecutor {
        return true;
    }

+    private void showHelp(final CommandSender sender) {
+        // Get registered commands
+        for (String commandName : plugin.getDescription().getCommands().keySet()) {
+            PluginCommand command = plugin.getCommand(commandName);
+
+            // Ensure command is successfully registered and sender can use it
+            if (command == null  || !command.testPermissionSilent(sender)) {
+                continue;
+            }
+
+            // Send usage
+            sender.sendMessage(command.getUsage().replace("<command>", commandName));
+
+            List<String> aliases = command.getAliases();
+            if (!aliases.isEmpty()) {
+                // Assemble alias list
+                StringJoiner aliasJoiner = new StringJoiner(", ", "   (aliases: ", ")");
+                for (String alias : aliases) {
+                    aliasJoiner.add(alias);
+                }
+
+                // Send all aliases
+                sender.sendMessage(aliasJoiner.toString());
+            }
+
+        }
+    }
+
    private void openInventory(final Player player, final OfflinePlayer target, boolean openinv) {
        Player onlineTarget;
        boolean online = target.isOnline();

        if (!online) {
-            // Try loading the player's data
-            onlineTarget = this.plugin.loadPlayer(target);
+            if (!plugin.disableOfflineAccess() && Permissions.OPENOFFLINE.hasPermission(player)) {
+                // Try loading the player's data
+                onlineTarget = this.plugin.loadPlayer(target);
+            } else {
+                plugin.sendMessage(player, "messages.error.permissionPlayerOffline");
+                return;
+            }
        } else {
-            onlineTarget = target.getPlayer();
+            if (Permissions.OPENONLINE.hasPermission(player)) {
+                onlineTarget = target.getPlayer();
+            } else {
+                plugin.sendMessage(player, "messages.error.permissionPlayerOnline");
+                return;
+            }
        }

        if (onlineTarget == null) {
@@ -132,22 +176,28 @@ public class OpenInvCommand implements TabExecutor {
            // Protected check
            if (!Permissions.OVERRIDE.hasPermission(player)
                    && Permissions.EXEMPT.hasPermission(onlineTarget)) {
-                plugin.sendMessage(player, "messages.error.permissionExempt",
-                        "%target%", onlineTarget.getDisplayName());
+                plugin.sendMessage(
+                        player,
+                        "messages.error.permissionExempt",
+                        new Replacement("%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());
+                plugin.sendMessage(
+                        player,
+                        "messages.error.permissionCrossWorld",
+                        new Replacement("%target%", onlineTarget.getDisplayName()));
                return;
            }
        }

-        // Record the target
-        (openinv ? this.openInvHistory : this.openEnderHistory).put(player, this.plugin.getPlayerID(target));
+        if (!plugin.noArgsOpensSelf()) {
+            // Record the target
+            (openinv ? this.openInvHistory : this.openEnderHistory).put(player, target.getUniqueId().toString());
+        }

        // Create the inventory
        final ISpecialInventory inv;
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -18,6 +18,7 @@ package com.lishid.openinv.commands;

 import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.util.TabCompleter;
+import com.lishid.openinv.util.lang.Replacement;
 import java.util.Collections;
 import java.util.List;
 import org.bukkit.Chunk;
@@ -44,7 +45,7 @@ public class SearchContainerCommand implements TabExecutor {

    @Override
    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
-        if (!(sender instanceof Player)) {
+        if (!(sender instanceof Player senderPlayer)) {
            plugin.sendMessage(sender, "messages.error.consoleUnsupported");
            return true;
        }
@@ -57,7 +58,10 @@ public class SearchContainerCommand implements TabExecutor {
        Material material = Material.getMaterial(args[0].toUpperCase());

        if (material == null) {
-            plugin.sendMessage(sender, "messages.error.invalidMaterial", "%target%", args[0]);
+            plugin.sendMessage(
+                    sender,
+                    "messages.error.invalidMaterial",
+                    new Replacement("%target%", args[0]));
            return false;
        }

@@ -72,7 +76,10 @@ public class SearchContainerCommand implements TabExecutor {
            }
        }

-        Player senderPlayer = (Player) sender;
+        // Clamp radius.
+        int configMax = plugin.getConfig().getInt("settings.command.searchcontainer.max-radius", 10);
+        radius = Math.max(0, Math.min(radius, configMax));
+
        World world = senderPlayer.getWorld();
        Chunk centerChunk = senderPlayer.getLocation().getChunk();
        StringBuilder locations = new StringBuilder();
@@ -84,10 +91,9 @@ public class SearchContainerCommand implements TabExecutor {
                }
                Chunk chunk = world.getChunkAt(centerChunk.getX() + dX, centerChunk.getZ() + dZ);
                for (BlockState tileEntity : chunk.getTileEntities()) {
-                    if (!(tileEntity instanceof InventoryHolder)) {
+                    if (!(tileEntity instanceof InventoryHolder holder)) {
                        continue;
                    }
-                    InventoryHolder holder = (InventoryHolder) tileEntity;
                    if (!holder.getInventory().contains(material)) {
                        continue;
                    }
@@ -102,13 +108,18 @@ public class SearchContainerCommand implements TabExecutor {
        if (locations.length() > 0) {
            locations.delete(locations.length() - 2, locations.length());
        } else {
-            plugin.sendMessage(sender, "messages.info.container.noMatches",
-                    "%target%", material.name());
+            plugin.sendMessage(
+                    sender,
+                    "messages.info.container.noMatches",
+                    new Replacement("%target%", material.name()));
            return true;
        }

-        plugin.sendMessage(sender, "messages.info.container.matches",
-                "%target%", material.name(), "%detail%", locations.toString());
+        plugin.sendMessage(
+                sender,
+                "messages.info.container.matches",
+                new Replacement("%target%", material.name()),
+                new Replacement("%detail%", locations.toString()));
        return true;
    }

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -18,6 +18,7 @@ package com.lishid.openinv.commands;

 import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.util.TabCompleter;
+import com.lishid.openinv.util.lang.Replacement;
 import java.util.Collections;
 import java.util.List;
 import org.bukkit.Material;
@@ -31,6 +32,7 @@ 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
@@ -113,18 +115,22 @@ public class SearchEnchantCommand implements TabExecutor {
            // 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);
+            plugin.sendMessage(
+                    sender,
+                    "messages.info.player.noMatches",
+                    new Replacement("%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());
+        plugin.sendMessage(
+                sender,
+                "messages.info.player.matches",
+                new Replacement("%target%", (enchant != null ? enchant.getKey().toString() : "") + " >= " + level),
+                        new Replacement("%detail%", players.toString()));
        return true;
    }

-    private boolean containsEnchantment(Inventory inventory, Enchantment enchant, int minLevel) {
+    private boolean containsEnchantment(Inventory inventory, @Nullable Enchantment enchant, int minLevel) {
        for (ItemStack item : inventory.getContents()) {
            if (item == null || item.getType() == Material.AIR) {
                continue;
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -18,6 +18,7 @@ package com.lishid.openinv.commands;

 import com.lishid.openinv.OpenInv;
 import com.lishid.openinv.util.TabCompleter;
+import com.lishid.openinv.util.lang.Replacement;
 import java.util.Collections;
 import java.util.List;
 import org.bukkit.Material;
@@ -40,26 +41,33 @@ public class SearchInvCommand implements TabExecutor {
    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {

        Material material = null;
-        int count = 1;

        if (args.length >= 1) {
            material = Material.getMaterial(args[0].toUpperCase());
        }

+        if (material == null) {
+            plugin.sendMessage(
+                    sender,
+                    "messages.error.invalidMaterial",
+                    new Replacement("%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]);
+                plugin.sendMessage(
+                        sender,
+                        "messages.error.invalidNumber",
+                        new Replacement("%target%", args[1]));
                return false;
            }
        }

-        if (material == null) {
-            plugin.sendMessage(sender, "messages.error.invalidMaterial", "%target%", args[0]);
-            return false;
-        }
-
        StringBuilder players = new StringBuilder();
        boolean searchInv = command.getName().equals("searchinv");
        for (Player player : plugin.getServer().getOnlinePlayers()) {
@@ -73,13 +81,18 @@ public class SearchInvCommand implements TabExecutor {
        if (players.length() > 0) {
            players.delete(players.length() - 2, players.length());
        } else {
-            plugin.sendMessage(sender, "messages.info.player.noMatches",
-                    "%target%", material.name());
+            plugin.sendMessage(
+                    sender,
+                    "messages.info.player.noMatches",
+                    new Replacement("%target%", material.name()));
            return true;
        }

-        plugin.sendMessage(sender, "messages.info.player.matches",
-                "%target%", material.name(), "%detail%", players.toString());
+        plugin.sendMessage(
+                sender,
+                "messages.info.player.matches",
+                new Replacement("%target%", material.name()),
+                new Replacement("%detail%", players.toString()));
        return true;
    }

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -32,8 +32,14 @@ public interface IPlayerDataManager {
     * @param offline the OfflinePlayer
     * @return the Player loaded
     */
-    @Nullable
-    Player loadPlayer(@NotNull OfflinePlayer offline);
+    @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.
@@ -43,14 +49,18 @@ public interface IPlayerDataManager {
     *`
     * @return the InventoryView opened
     */
-    @Nullable
-    InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory);
+    @Nullable InventoryView openInventory(@NotNull Player player, @NotNull ISpecialInventory inventory);

-    void sendSystemMessage(@NotNull Player player, @NotNull String message);
-
-    @NotNull
-    default String getLocale(Player player) {
-        return player.getLocale();
-    }
+    /**
+     * 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);

 }
@@ -0,0 +1,84 @@
+/*
+ * 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.internal;
+
+import com.lishid.openinv.OpenInv;
+import com.lishid.openinv.util.lang.Replacement;
+import java.util.Objects;
+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 @NotNull Player player;
+    private final @NotNull ISpecialInventory inventory;
+    private final @NotNull String titleKey;
+    private final @NotNull String titleDefaultSuffix;
+    private String title;
+
+    public OpenInventoryView(
+            @NotNull Player player,
+            @NotNull ISpecialInventory inventory,
+            @NotNull String titleKey,
+            @NotNull 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(
+                            player,
+                            titleKey,
+                            new Replacement("%player%", owner.getName()));
+            title = Objects.requireNonNullElseGet(localTitle, () -> owner.getName() + titleDefaultSuffix);
+        }
+
+        return title;
+    }
+
+}
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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.util.InventoryAccess;
-import com.lishid.openinv.util.Permissions;
-import org.bukkit.entity.HumanEntity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.inventory.InventoryClickEvent;
-import org.bukkit.inventory.Inventory;
-
-public class InventoryClickListener implements Listener {
-
-    @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
-    public void onInventoryClick(InventoryClickEvent event) {
-        HumanEntity entity = event.getWhoClicked();
-        Inventory inventory = event.getInventory();
-        if (InventoryAccess.isPlayerInventory(inventory) && !Permissions.EDITINV.hasPermission(entity)
-                || InventoryAccess.isEnderChest(inventory) && !Permissions.EDITENDER.hasPermission(entity)) {
-            event.setCancelled(true);
-        }
-    }
-
-}
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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.IOpenInv;
-import org.bukkit.entity.Player;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.event.inventory.InventoryCloseEvent;
-
-public class InventoryCloseListener implements Listener {
-
-    private final IOpenInv plugin;
-
-    public InventoryCloseListener(final IOpenInv plugin) {
-        this.plugin = plugin;
-    }
-
-    @EventHandler
-    public void onInventoryClose(final InventoryCloseEvent event) {
-        if (!(event.getPlayer() instanceof Player)) {
-            return;
-        }
-
-        Player player = (Player) event.getPlayer();
-
-        if (this.plugin.getPlayerSilentChestStatus(player)) {
-            this.plugin.getAnySilentContainer().deactivateContainer(player);
-        }
-    }
-
-}
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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.util.InventoryAccess;
-import com.lishid.openinv.util.Permissions;
-import org.bukkit.entity.HumanEntity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.inventory.InventoryDragEvent;
-import org.bukkit.inventory.Inventory;
-
-/**
- * Listener for InventoryDragEvents to prevent unpermitted modification of special inventories.
- *
- * @author Jikoo
- */
-public class InventoryDragListener implements Listener {
-
-    @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
-    public void onInventoryDrag(InventoryDragEvent event) {
-        HumanEntity entity = event.getWhoClicked();
-        Inventory inventory = event.getInventory();
-        if (InventoryAccess.isPlayerInventory(inventory) && !Permissions.EDITINV.hasPermission(entity)
-                || InventoryAccess.isEnderChest(inventory) && !Permissions.EDITENDER.hasPermission(entity)) {
-            event.setCancelled(true);
-        }
-    }
-
-}
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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());
-    }
-
-}
@@ -1,185 +0,0 @@
-/*
- * Copyright (C) 2011-2020 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.Function;
-
-/**
- * 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 Function<V, Boolean> inUseCheck, 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 Function used to check if a key is considered in use
-     * @param postRemoval Function used to perform any operations required when a key is invalidated
-     */
-    public Cache(final long retention, final Function<V, Boolean> inUseCheck, final Function<V, Boolean> 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.apply(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.apply(this.internal.get(entry.getValue()))) {
-                    inUse.add(entry.getValue());
-                    continue;
-                }
-
-                V value = this.internal.remove(entry.getValue());
-
-                if (value == null) {
-                    continue;
-                }
-
-                this.postRemoval.apply(value);
-            }
-
-            long nextExpiry = now + this.retention;
-            for (K value : inUse) {
-                this.expiry.put(nextExpiry, value);
-            }
-        }
-    }
-
-}
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -24,19 +24,13 @@ import java.util.Map;
 import java.util.Set;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.configuration.ConfigurationSection;
-import org.bukkit.scheduler.BukkitRunnable;

-public class ConfigUpdater {
-
-    private final OpenInv plugin;
-
-    public ConfigUpdater(OpenInv plugin) {
-        this.plugin = plugin;
-    }
+public record ConfigUpdater(OpenInv plugin) {

    public void checkForUpdates() {
        final int version = plugin.getConfig().getInt("config-version", 1);
-        if (version >= plugin.getConfig().getDefaults().getInt("config-version")) {
+        ConfigurationSection defaults = plugin.getConfig().getDefaults();
+        if (defaults == null || version >= defaults.getInt("config-version")) {
            return;
        }

@@ -50,87 +44,93 @@ public class ConfigUpdater {
            plugin.getLogger().warning("Could not back up config.yml before updating!");
        }

-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                if (version < 2) {
-                    updateConfig1To2();
-                }
-                if (version < 3) {
-                    updateConfig2To3();
-                }
-                if (version < 4) {
-                    updateConfig3To4();
-                }
-
-                new BukkitRunnable() {
-                    @Override
-                    public void run() {
-                        plugin.saveConfig();
-                        plugin.getLogger().info("Configuration update complete!");
-                    }
-                }.runTaskLater(plugin, 1L); // Run on 1 tick delay; on older versions Bukkit's scheduler is not guaranteed FIFO
+        plugin.getServer().getScheduler().runTaskAsynchronously(plugin, () -> {
+            if (version < 2) {
+                updateConfig1To2();
            }
-        }.runTaskAsynchronously(plugin);
+            if (version < 3) {
+                updateConfig2To3();
+            }
+            if (version < 4) {
+                updateConfig3To4();
+            }
+            if (version < 5) {
+                updateConfig4To5();
+            }
+            if (version < 6) {
+                updateConfig5To6();
+            }
+
+            plugin.getServer().getScheduler().runTask(plugin, () -> {
+                plugin.saveConfig();
+                plugin.getLogger().info("Configuration update complete!");
+            });
+        });
+    }
+
+    private void updateConfig5To6() {
+        plugin.getServer().getScheduler().runTask(plugin, () -> {
+            plugin.getConfig().set("settings.command.open.no-args-opens-self", false);
+            plugin.getConfig().set("settings.command.searchcontainer.max-radius", 10);
+            plugin.getConfig().set("config-version", 6);
+        });
+    }
+
+    private void updateConfig4To5() {
+        plugin.getServer().getScheduler().runTask(plugin, () -> {
+            plugin.getConfig().set("settings.disable-offline-access", false);
+            plugin.getConfig().set("config-version", 5);
+        });
    }

    private void updateConfig3To4() {
-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                plugin.getConfig().set("notify", null);
-                plugin.getConfig().set("settings.locale", "en_US");
-                plugin.getConfig().set("config-version", 4);
-            }
-        }.runTask(plugin);
+        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() {
-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                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);
-            }
-        }.runTask(plugin);
+        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() {
-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                // 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);
-            }
-        }.runTask(plugin);
+        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 (!plugin.getConfig().isConfigurationSection(sectionName)) {
+        if (section == null) {
            return;
        }

-        ConfigurationSection section = plugin.getConfig().getConfigurationSection(sectionName);
        Set<String> keys = section.getKeys(false);

        // Ensure section has content
-        if (keys == null || keys.isEmpty()) {
+        if (keys.isEmpty()) {
            return;
        }

@@ -139,29 +139,24 @@ public class ConfigUpdater {
        for (String playerName : keys) {
            OfflinePlayer player = plugin.matchPlayer(playerName);
            if (player != null) {
-                toggles.put(plugin.getPlayerID(player), section.getBoolean(playerName + ".toggle", false));
+                toggles.put(player.getUniqueId().toString(), section.getBoolean(playerName + ".toggle", false));
            }
        }

-        new BukkitRunnable() {
-            @Override
-            public void run() {
-                // Wipe old ConfigurationSection
-                plugin.getConfig().set(sectionName, null);
+        plugin.getServer().getScheduler().runTask(plugin, () -> {
+            // Wipe old ConfigurationSection
+            plugin.getConfig().set(sectionName, null);

-                // Prepare new ConfigurationSection
-                ConfigurationSection newSection;
-                if (plugin.getConfig().isConfigurationSection(newSectionName)) {
-                    newSection = plugin.getConfig().getConfigurationSection(newSectionName);
-                } else {
-                    newSection = plugin.getConfig().createSection(newSectionName);
-                }
-                // Set new values
-                for (Map.Entry<String, Boolean> entry : toggles.entrySet()) {
-                    newSection.set(entry.getKey(), entry.getValue());
-                }
+            // Prepare new ConfigurationSection
+            ConfigurationSection newSection = plugin.getConfig().getConfigurationSection(newSectionName);
+            if (newSection == null) {
+                newSection = plugin.getConfig().createSection(newSectionName);
            }
-        }.runTask(plugin);
+            // Set new values
+            for (Map.Entry<String, Boolean> entry : toggles.entrySet()) {
+                newSection.set(entry.getKey(), entry.getValue());
+            }
+        });
    }

 }
@@ -1,165 +0,0 @@
-/*
- * Copyright (C) 2011-2020 Jikoo. 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 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));
-			}
-		}
-
-		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;
-	}
-
-}
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -17,6 +17,7 @@
 package com.lishid.openinv.util;

 import org.bukkit.permissions.Permissible;
+import org.jetbrains.annotations.NotNull;

 public enum Permissions {

@@ -25,26 +26,35 @@ public enum Permissions {
    EXEMPT("exempt"),
    CROSSWORLD("crossworld"),
    SILENT("silent"),
-    SILENT_DEFAULT("silent.default"),
+    SILENT_DEFAULT("silent.default", true),
    ANYCHEST("anychest"),
-    ANY_DEFAULT("any.default"),
+    ANY_DEFAULT("any.default", true),
    ENDERCHEST("openender"),
    ENDERCHEST_ALL("openenderall"),
    SEARCH("search"),
    EDITINV("editinv"),
    EDITENDER("editender"),
-    OPENSELF("openself");
+    OPENSELF("openself"),
+    OPENONLINE("openonline"),
+    OPENOFFLINE("openoffline"),
+    SPECTATE("spectate");

    private final String permission;
+    private final boolean uninheritable;

    Permissions(String permission) {
-        this.permission = "OpenInv." + permission;
+        this(permission, false);
    }

-    public boolean hasPermission(Permissible permissible) {
+    Permissions(String permission, boolean uninheritable) {
+        this.permission = "OpenInv." + permission;
+        this.uninheritable = uninheritable;
+    }
+
+    public boolean hasPermission(@NotNull Permissible permissible) {

        boolean hasPermission = permissible.hasPermission(permission);
-        if (hasPermission || permissible.isPermissionSet(permission)) {
+        if (uninheritable || hasPermission || permissible.isPermissionSet(permission)) {
            return hasPermission;
        }

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2020 lishid. All rights reserved.
+ * 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
@@ -0,0 +1,218 @@
+/*
+ * 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.lang;
+
+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.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Predicate;
+import java.util.logging.Level;
+import org.bukkit.ChatColor;
+import org.bukkit.configuration.Configuration;
+import org.bukkit.configuration.ConfigurationSection;
+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 @NotNull YamlConfiguration getOrLoadLocale(@NotNull String locale) {
+        YamlConfiguration loaded = locales.get(locale);
+        if (loaded != null) {
+            return loaded;
+        }
+
+        File file = new File(plugin.getDataFolder(), locale + ".yml");
+
+        // Load locale config from disk and bundled locale defaults.
+        YamlConfiguration localeConfig = loadLocale(locale, file);
+
+        // If the locale is not the default locale, also handle any missing translations from the default locale.
+        if (!locale.equals(defaultLocale)) {
+            addTranslationFallthrough(locale, localeConfig, file);
+
+            if (plugin.getConfig().getBoolean("settings.secret.warn-about-guess-section", true)
+                    && localeConfig.isConfigurationSection("guess")) {
+                // Warn that guess section exists. This should run once per language per server restart
+                // when accessed by a user to hint to server owners that they can make UX improvements.
+                plugin.getLogger().info(() -> "[LanguageManager] Missing translations from " + locale + ".yml! Check the guess section!");
+            }
+        }
+
+        locales.put(locale, localeConfig);
+        return localeConfig;
+    }
+
+    private @NotNull YamlConfiguration loadLocale(
+            @NotNull String locale,
+            @NotNull File file) {
+        // Load defaults from the plugin's bundled resources.
+        InputStream resourceStream = plugin.getResource("locale/" + locale + ".yml");
+        YamlConfiguration localeConfigDefaults;
+        if (resourceStream == null) {
+            localeConfigDefaults = new YamlConfiguration();
+        } else {
+            try (BufferedReader reader = new BufferedReader(new InputStreamReader(resourceStream, StandardCharsets.UTF_8))) {
+                localeConfigDefaults = YamlConfiguration.loadConfiguration(reader);
+            } catch (IOException e) {
+                plugin.getLogger().log(Level.WARNING, e, () -> "[LanguageManager] Unable to load resource " + locale + ".yml");
+                localeConfigDefaults = new YamlConfiguration();
+            }
+        }
+
+        if (!file.exists()) {
+            // If the file does not exist on disk, save bundled defaults.
+            try {
+                localeConfigDefaults.save(file);
+            } catch (IOException e) {
+                plugin.getLogger().log(Level.WARNING, e, () -> "[LanguageManager] Unable to save resource " + locale + ".yml");
+            }
+            // Return loaded bundled locale.
+            return localeConfigDefaults;
+        }
+
+        // If the file does exist on disk, load it.
+        YamlConfiguration localeConfig = YamlConfiguration.loadConfiguration(file);
+        // Check for missing translations from the bundled file.
+        List<String> newKeys = getMissingKeys(localeConfigDefaults, localeConfig::isSet);
+
+        if (newKeys.isEmpty()) {
+            return localeConfig;
+        }
+
+        // Get guess section for missing keys.
+        ConfigurationSection guess = localeConfig.getConfigurationSection("guess");
+
+        for (String newKey : newKeys) {
+            // Set all missing keys to defaults.
+            localeConfig.set(newKey, localeConfigDefaults.get(newKey));
+
+            // Delete relevant guess keys in case this is a new translation.
+            if (guess != null) {
+                guess.set(newKey, null);
+            }
+        }
+
+        // If guess section is empty, delete it.
+        if (guess != null && guess.getKeys(false).isEmpty()) {
+            localeConfig.set("guess", null);
+        }
+
+        plugin.getLogger().info(() -> "[LanguageManager] Added new translation keys to " + locale + ".yml: " + String.join(", ", newKeys));
+
+        // Write new keys to disk.
+        try {
+            localeConfig.save(file);
+        } catch (IOException e) {
+            plugin.getLogger().log(Level.WARNING, e, () -> "[LanguageManager] Unable to save resource " + locale + ".yml");
+        }
+
+        return localeConfig;
+    }
+
+    private void addTranslationFallthrough(
+            @NotNull String locale,
+            @NotNull YamlConfiguration localeConfig,
+            @NotNull File file) {
+        YamlConfiguration defaultLocaleConfig = locales.get(defaultLocale);
+
+        // Get missing keys. Keys that already have a guess value are not new and don't need to trigger another write.
+        List<String> missingKeys = getMissingKeys(
+                defaultLocaleConfig,
+                key -> localeConfig.isSet(key) || localeConfig.isSet("guess." + key));
+
+        if (!missingKeys.isEmpty()) {
+            // Set up guess section for missing keys.
+            for (String key : missingKeys) {
+                localeConfig.set("guess." + key, defaultLocaleConfig.get(key));
+            }
+
+            // Write modified guess section to disk.
+            try {
+                localeConfig.save(file);
+            } catch (IOException e) {
+                plugin.getLogger().log(Level.WARNING, e, () -> "[LanguageManager] Unable to save resource " + locale + ".yml");
+            }
+        }
+
+        // Fall through to default locale.
+        localeConfig.setDefaults(defaultLocaleConfig);
+    }
+
+    private @NotNull List<String> getMissingKeys(
+            @NotNull Configuration configurationDefault,
+            @NotNull Predicate<String> nodeSetPredicate) {
+        List<String> missingKeys = new ArrayList<>();
+        for (String key : configurationDefault.getKeys(true)) {
+            if (!configurationDefault.isConfigurationSection(key) && !nodeSetPredicate.test(key)) {
+                // Missing keys are non-section keys that fail the predicate.
+                missingKeys.add(key);
+            }
+        }
+        return missingKeys;
+    }
+
+    public @Nullable 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;
+    }
+
+    public @Nullable String getValue(@NotNull String key, @Nullable String locale, Replacement @NotNull ... replacements) {
+        String value = getValue(key, locale);
+
+        if (value == null) {
+            return null;
+        }
+
+        for (Replacement replacement : replacements) {
+            value = value.replace(replacement.placeholder(), replacement.value());
+        }
+
+        return value;
+    }
+
+}
@@ -0,0 +1,29 @@
+/*
+ * 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.lang;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * A data holder for string replacement in translations.
+ *
+ * @param placeholder the placeholder to be replaced
+ * @param value the value to insert
+ */
+public record Replacement(@NotNull String placeholder, @NotNull String value) {
+
+}
@@ -1,4 +1,10 @@
-config-version: 4
+config-version: 6
 settings:
+  command:
+    open:
+      no-args-opens-self: false
+    searchcontainer:
+      max-radius: 10
+  disable-offline-access: false
  disable-saving: false
  locale: 'en_us'
@@ -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'
@@ -9,6 +9,8 @@ messages:
    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.'
@@ -25,4 +27,4 @@ messages:
    off: 'off'
 container:
  player: '%player%''s Inventory'
-  enderchest: '%Player''s Ender Chest'
+  enderchest: '%player%''s Ender Chest'
@@ -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%'
+  
@@ -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%'
@@ -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' 
@@ -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'
@@ -5,7 +5,7 @@ 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: "1.14"
+api-version: "1.16"

 permissions:
  OpenInv.any.default:
@@ -25,6 +25,19 @@ permissions:
      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:
@@ -1,5 +1,5 @@
 <!--
-  ~ Copyright (C) 2011-2020 lishid. All rights reserved.
+  ~ Copyright (C) 2011-2023 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
@@ -19,61 +19,45 @@

  <groupId>com.lishid</groupId>
  <artifactId>openinvparent</artifactId>
-  <name>OpenInvParent</name>
+  <name>OpenInv</name>
  <url>http://dev.bukkit.org/bukkit-plugins/openinv/</url>
-  <version>4.1.1-SNAPSHOT</version>
+  <version>4.4.0</version>

  <packaging>pom</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
+    <maven.compiler.release>17</maven.compiler.release>
+    <!-- Silence IDE warning - property is declared in individual internal modules. -->
+    <spigot.version>unknown</spigot.version>
  </properties>

-  <modules>
-    <module>api</module>
-    <module>plugin</module>
-    <module>internal</module>
-    <module>assembly</module>
-  </modules>
-
  <profiles>
-
-    <!--
-      ~ N.B.: All version-specific code is handled in submodules of the internal module.
-      ~
-      ~ Internal submodules built by each profile are handled in internal/pom.xml
-     -->
-
    <profile>
      <id>all</id>
-      <activation>
-        <property>
-          <name>all</name>
-          <value>true</value>
-        </property>
-      </activation>
+      <modules>
+        <module>api</module>
+        <module>plugin</module>
+        <module>internal/v1_19_R3</module>
+        <module>internal/v1_20_R1</module>
+        <module>internal/v1_20_R2</module>
+        <module>assembly</module>
+      </modules>
    </profile>

    <profile>
-      <id>latest</id>
+      <id>default</id>
      <activation>
-        <property>
-          <name>latest</name>
-          <value>true</value>
-        </property>
+        <activeByDefault>true</activeByDefault>
      </activation>
+      <modules>
+        <module>api</module>
+        <module>plugin</module>
+        <module>assembly</module>
+      </modules>
    </profile>
-
-    <profile>
-      <id>recent</id>
-      <activation>
-        <property>
-          <name>recent</name>
-          <value>true</value>
-        </property>
-      </activation>
-    </profile>
-
  </profiles>

  <repositories>
@@ -83,42 +67,134 @@
    </repository>
  </repositories>

-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-shade-plugin</artifactId>
-        <version>3.2.2</version>
-        <configuration>
-          <filters>
-            <filter>
-              <artifact>*:*</artifact>
-              <!-- Keep the file clean, don't include every single pom from all modules -->
-              <excludes>
-                <exclude>META-INF/maven/**</exclude>
-              </excludes>
-            </filter>
-          </filters>
-        </configuration>
-        <executions>
-          <execution>
-            <phase>package</phase>
-            <goals>
-              <goal>shade</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <artifactId>annotations</artifactId>
+        <groupId>org.jetbrains</groupId>
+        <scope>provided</scope>
+        <version>24.0.1</version>
+      </dependency>
+      <dependency>
+        <artifactId>spigot-api</artifactId>
+        <groupId>org.spigotmc</groupId>
+        <scope>provided</scope>
+        <version>1.18.2-R0.1-SNAPSHOT</version>
+      </dependency>
+      <dependency>
+        <artifactId>openinvapi</artifactId>
+        <groupId>com.lishid</groupId>
+        <scope>compile</scope>
+        <version>4.4.0</version>
+      </dependency>
+      <dependency>
+        <artifactId>openinvplugincore</artifactId>
+        <groupId>com.lishid</groupId>
+        <scope>compile</scope>
+        <version>4.4.0</version>
+        <exclusions>
+          <exclusion>
+            <groupId>com.lishid</groupId>
+            <artifactId>openinvapi</artifactId>
+          </exclusion>
+        </exclusions>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>

-      <plugin>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-        </configuration>
-      </plugin>
-    </plugins>
+  <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <!--
+            ~ This plugin is used in scripts to determine if NMS dependencies need to be installed. This must be
+            ~ declared so that we don't run into MDEP-204; the default SuperPOM declares version 2.8.0.
+            -->
+          <artifactId>maven-dependency-plugin</artifactId>
+          <groupId>org.apache.maven.plugins</groupId>
+          <version>3.6.0</version>
+        </plugin>
+
+        <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>3.5.1</version>
+        </plugin>
+
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <groupId>org.apache.maven.plugins</groupId>
+          <version>3.11.0</version>
+        </plugin>
+
+        <plugin>
+          <artifactId>maven-assembly-plugin</artifactId>
+          <groupId>org.apache.maven.plugins</groupId>
+          <version>3.6.0</version>
+        </plugin>
+
+        <plugin>
+          <groupId>net.md-5</groupId>
+          <artifactId>specialsource-maven-plugin</artifactId>
+          <version>1.2.4</version>
+          <executions>
+            <execution>
+              <phase>package</phase>
+              <goals>
+                <goal>remap</goal>
+              </goals>
+              <id>remap-obf</id>
+              <configuration>
+                <srgIn>org.spigotmc:minecraft-server:${spigot.version}:txt:maps-mojang</srgIn>
+                <reverse>true</reverse>
+                <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-mojang</remappedDependencies>
+                <remappedArtifactAttached>true</remappedArtifactAttached>
+                <remappedClassifierName>remapped-obf</remappedClassifierName>
+              </configuration>
+            </execution>
+            <execution>
+              <phase>package</phase>
+              <goals>
+                <goal>remap</goal>
+              </goals>
+              <id>remap-spigot</id>
+              <configuration>
+                <inputFile>${project.build.directory}/${project.artifactId}-${project.version}-remapped-obf.jar</inputFile>
+                <srgIn>org.spigotmc:minecraft-server:${spigot.version}:csrg:maps-spigot</srgIn>
+                <remappedDependencies>org.spigotmc:spigot:${spigot.version}:jar:remapped-obf</remappedDependencies>
+              </configuration>
+            </execution>
+          </executions>
+        </plugin>
+      </plugins>
+    </pluginManagement>
  </build>

 </project>
@@ -0,0 +1,82 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2023 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}"
@@ -0,0 +1,52 @@
+#!/bin/bash
+#
+# 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/>.
+#
+
+# Note that this script is designed for use in GitHub Actions, and is not
+# particularly robust nor configurable. Run from project parent directory.
+
+# Use a nameref as a cache - maven evaluation is pretty slow.
+# Re-calling the script and relying on it to handle caching is way easier than passing around info.
+declare -a spigot_versions
+
+# We don't care about concatenation - either it's not null and we handle entries or it's null and we instantiate.
+# shellcheck disable=SC2199
+if [[ ${spigot_versions[@]} ]]; then
+  for spigot_version in "${spigot_versions[@]}"; do
+    echo "$spigot_version"
+  done
+  return
+fi
+
+old_maven_opts=$MAVEN_OPTS
+# Add JVM parameters to allow help plugin access to packages it needs.
+export MAVEN_OPTS="$old_maven_opts --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang.reflect=ALL-UNNAMED --add-opens java.base/java.text=ALL-UNNAMED --add-opens java.desktop/java.awt.font=ALL-UNNAMED"
+
+# Pull Spigot dependency information from Maven.
+# Since we only care about Spigot versions, only check modules in the folder internal.
+readarray -t modules <<< "$(mvn help:evaluate -Dexpression=project.modules -q -DforceStdout -P all | grep -oP '(?<=<string>)(internal/.*)(?=</string>)')"
+
+declare -n versions="spigot_versions"
+
+for module in "${modules[@]}"; do
+  # Get Spigot version.
+  spigot_version=$(mvn help:evaluate -Dexpression=spigot.version -q -DforceStdout -P all -pl "$module")
+  versions+=("$spigot_version")
+  echo "$spigot_version"
+done
+
+# Reset JVM parameters
+export MAVEN_OPTS=$old_maven_opts
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# 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/>.
+#
+
+# 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: "${versions[@]}"
+
+# Install dependencies aside from Spigot prior to running in offline mode.
+mvn dependency:go-offline -DexcludeArtifactIds=spigot
+
+for version in "${versions[@]}"; do
+  set -e
+  exit_code=0
+  mvn dependency:get -Dartifact=org.spigotmc:spigot:"$version":remapped-mojang -q -o || exit_code=$?
+  if [ $exit_code -ne 0 ]; then
+    echo Installing missing Spigot version "$version"
+    revision=${version%%-R*}
+    get_buildtools
+    java -jar $buildtools -rev "$revision" --remapped
+  else
+    echo Spigot "$version" is already installed
+  fi
+done
@@ -0,0 +1,55 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2021 lishid. All rights reserved.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Note that this script is designed for use in GitHub Actions, and is not
+# particularly robust nor configurable. Run from project parent directory.
+
+# Parse Spigot dependency information into major Minecraft versions
+function get_curseforge_minecraft_versions() {
+  readarray -t versions <<< "$(. ./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" >> "$GITHUB_ENV"
@@ -0,0 +1,32 @@
+#!/bin/bash
+#
+# Copyright (C) 2011-2021 lishid. All rights reserved.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Note that this script is designed for use in GitHub Actions, and is not
+# particularly robust nor configurable. Run from project parent directory.
+
+# Get a pretty string of the project's name and version
+# Disable SC warning about variable expansion for this function - those are Maven variables.
+# shellcheck disable=SC2016
+function get_versioned_name() {
+  mvn -q -Dexec.executable=echo -Dexec.args='${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"
@@ -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"