Update version to 5.4.0 for release

The field `listOrder` was always set to zero in the wrapper instead of
being read from the NMS object. This commit fixes that, while adding the
respective constructor and getter.

.github/workflows/build.yml

@@ -1,28 +1,30 @@
 name: ProtocolLib full build lifecycle
 
 on:
-  - push
-  - pull_request
+  push:
+    branches-ignore:
+      - 'gh-pages'
+  pull_request:
 
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup java
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '19'
+          java-version: '21'
           cache: 'gradle'
 
       - name: Run gradle build lifecycle
         run: ./gradlew build shadowJar --no-daemon
 
       - name: Upload plugin file
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ProtocolLib
           path: build/libs/ProtocolLib.jar

.github/workflows/codeql-analysis.yml

@@ -20,17 +20,17 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup java
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '19'
+          java-version: '21'
           cache: 'gradle'
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v2
+        uses: github/codeql-action/init@v3
         with:
           languages: 'java'
 
@@ -38,4 +38,4 @@ jobs:
         run: ./gradlew build -x test --no-daemon
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v2
+        uses: github/codeql-action/analyze@v3

.gitignore

@@ -181,4 +181,3 @@ logs/
 build/
 logs/
 .java-version
-gradle.properties

Readme.md

@@ -2,7 +2,7 @@
 
 Certain tasks are impossible to perform with the standard Bukkit API, and may require
 working with and even modifying Minecraft directly. A common technique is to modify incoming
-and outgoing [packets](https://wiki.vg/Protocol), or inject custom packets into the
+and outgoing packets, or inject custom packets into the
 stream. This is quite cumbersome to do, however, and most implementations will break
 as soon as a new version of Minecraft has been released, mostly due to obfuscation.
 
@@ -12,9 +12,10 @@ lead to more subtle bugs.
 
 ### Resources
 
-* [Resource Page](https://www.spigotmc.org/resources/protocollib.1997/)
-* [Dev Builds](https://ci.dmulloy2.net/job/ProtocolLib)
-* [JavaDoc](https://ci.dmulloy2.net/job/ProtocolLib/javadoc/index.html)
+* [Spigot Page](https://spigotmc.org/resources/protocollib.1997/)
+* [Releases](https://github.com/dmulloy2/ProtocolLib/releases)
+* [JavaDoc](https://dmulloy2.net/ProtocolLib/javadoc/)
+* [Protocol Wiki](https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Protocol)
 
 ### Compilation
 
@@ -42,18 +43,11 @@ depend: [ ProtocolLib ]
 You can also add ProtocolLib as a Maven dependency:
 
 ````xml
-<repositories>
-  <repository>
-    <id>dmulloy2-repo</id>
-    <url>https://repo.dmulloy2.net/repository/public/</url>
-  </repository>
-</repositories>
-
 <dependencies>
   <dependency>
-    <groupId>com.comphenix.protocol</groupId>
+    <groupId>net.dmulloy2</groupId>
     <artifactId>ProtocolLib</artifactId>
-    <version>5.0.0</version>
+    <version>5.4.0</version>
     <scope>provided</scope>
   </dependency>
 </dependencies>
@@ -63,11 +57,11 @@ Or use the maven dependency with gradle:
 
 ```gradle
 repositories {
-    maven { url "https://repo.dmulloy2.net/repository/public/" }
+    mavenCentral()
 }
 
 dependencies {
-    compileOnly 'com.comphenix.protocol:ProtocolLib:5.0.0'
+    compileOnly 'net.dmulloy2:ProtocolLib:5.4.0'
 }
 ```
 

build.gradle

@@ -1,114 +0,0 @@
-plugins {
-    id 'java-library'
-    id 'maven-publish'
-    id 'com.github.johnrengelman.shadow' version '8.1.1'
-}
-
-group = 'com.comphenix.protocol'
-version = '5.1.0'
-description = 'Provides access to the Minecraft protocol'
-
-def isSnapshot = version.endsWith('-SNAPSHOT')
-
-repositories {
-    // mavenLocal() // can speed up build, but may fail in CI
-    mavenCentral()
-
-    maven {
-        url 'https://repo.dmulloy2.net/repository/public/'
-    }
-
-    maven {
-        url 'https://hub.spigotmc.org/nexus/content/groups/public/'
-    }
-
-    maven {
-        url 'https://libraries.minecraft.net/'
-        metadataSources {
-            mavenPom()
-            artifact()
-            ignoreGradleMetadataRedirection()
-        }
-    }
-}
-
-dependencies {
-    implementation 'net.bytebuddy:byte-buddy:1.14.3'
-    compileOnly 'org.spigotmc:spigot-api:1.20-R0.1-SNAPSHOT'
-    compileOnly 'org.spigotmc:spigot:1.20-R0.1-SNAPSHOT'
-    compileOnly 'io.netty:netty-all:4.0.23.Final'
-    compileOnly 'net.kyori:adventure-text-serializer-gson:4.13.0'
-    compileOnly 'com.googlecode.json-simple:json-simple:1.1.1'
-
-    testImplementation 'org.junit.jupiter:junit-jupiter-engine:5.9.2'
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.9.2'
-    testImplementation 'org.mockito:mockito-core:4.11.0'
-    testImplementation 'org.mockito:mockito-inline:4.11.0'
-    testImplementation 'io.netty:netty-common:4.1.77.Final'
-    testImplementation 'io.netty:netty-transport:4.1.77.Final'
-    testImplementation 'org.spigotmc:spigot:1.20-R0.1-SNAPSHOT'
-    testImplementation 'net.kyori:adventure-text-serializer-gson:4.13.0'
-    testImplementation 'net.kyori:adventure-text-serializer-plain:4.13.1'
-}
-
-java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
-
-    withJavadocJar()
-    withSourcesJar()
-}
-
-shadowJar {
-    dependencies {
-        include(dependency('net.bytebuddy:byte-buddy:.*'))
-    }
-    relocate 'net.bytebuddy', 'com.comphenix.net.bytebuddy'
-    archiveFileName = 'ProtocolLib.jar'
-}
-
-test {
-    useJUnitPlatform()
-}
-
-processResources {
-    def includeBuild = isSnapshot && System.getenv('BUILD_NUMBER')
-    def fullVersion = includeBuild
-        ? version + '-' + System.getenv('BUILD_NUMBER')
-        : version
-
-    eachFile { expand(['version': fullVersion]) }
-}
-
-publishing {
-    publications {
-        mavenJava(MavenPublication) {
-            from components.java
-
-            afterEvaluate {
-                artifactId = 'ProtocolLib'
-            }
-        }
-    }
-
-    repositories {
-        maven {
-            url isSnapshot
-                ? 'https://repo.dmulloy2.net/repository/snapshots/'
-                : 'https://repo.dmulloy2.net/repository/releases/'
-
-            credentials {
-                username project.nexusUsername
-                password project.nexusPassword
-            }
-        }
-    }
-}
-
-tasks.withType(JavaCompile) {
-    options.encoding = 'UTF-8'
-}
-
-tasks.withType(Javadoc) {
-    options.encoding = 'UTF-8'
-}

build.gradle.kts

@@ -0,0 +1,169 @@
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import io.github.patrick.gradle.remapper.RemapTask
+import org.gradle.api.tasks.testing.logging.TestExceptionFormat
+
+plugins {
+    `java-library`
+    `maven-publish`
+    `signing`
+    id("com.gradleup.shadow") version "9.0.0-beta13"
+    id("io.github.patrick.remapper") version "1.4.2"
+    id("com.vanniktech.maven.publish") version "0.34.0"
+}
+
+group = "net.dmulloy2"
+description = "Provides access to the Minecraft protocol"
+
+val mcVersion = "1.21.8"
+val isSnapshot = version.toString().endsWith("-SNAPSHOT")
+val buildNumber = System.getenv("BUILD_NUMBER") ?: ""
+val isJenkins = buildNumber.isNotEmpty()
+
+repositories {
+    if (!isJenkins) {
+        mavenLocal()
+    }
+
+    mavenCentral()
+
+    maven {
+        url = uri("https://repo.codemc.io/repository/nms/")
+    }
+
+    maven {
+        url = uri("https://hub.spigotmc.org/nexus/content/groups/public/")
+    }
+
+    maven {
+        url = uri("https://libraries.minecraft.net/")
+        metadataSources {
+            mavenPom()
+            artifact()
+            ignoreGradleMetadataRedirection()
+        }
+    }
+}
+
+dependencies {
+    implementation("net.bytebuddy:byte-buddy:1.17.5")
+    compileOnly("org.spigotmc:spigot-api:${mcVersion}-R0.1-SNAPSHOT")
+    compileOnly("org.spigotmc:spigot:${mcVersion}-R0.1-SNAPSHOT:remapped-mojang")
+    compileOnly("io.netty:netty-all:4.0.23.Final")
+    /* 
+     * TODO(fix): once you update kyori:adventure-text-serializer-gson please uncomment the TODO in
+     * com.comphenix.protocol.wrappers.WrappedComponentStyleTest if the following issue got fixed:
+     * https://github.com/KyoriPowered/adventure/issues/1194
+     */
+    compileOnly("net.kyori:adventure-text-serializer-gson:4.21.0")
+    compileOnly("com.googlecode.json-simple:json-simple:1.1.1")
+
+    testImplementation("org.junit.jupiter:junit-jupiter-engine:5.10.0")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.10.0")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher:1.10.0")
+    testImplementation("org.mockito:mockito-core:5.6.0")
+    testImplementation("io.netty:netty-common:4.1.97.Final")
+    testImplementation("io.netty:netty-transport:4.1.97.Final")
+    testImplementation("org.spigotmc:spigot:${mcVersion}-R0.1-SNAPSHOT:remapped-mojang")
+    testImplementation("net.kyori:adventure-text-serializer-gson:4.14.0")
+    testImplementation("net.kyori:adventure-text-serializer-plain:4.14.0")
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
+}
+
+tasks {
+    processResources {
+        val fullVersion = if (isSnapshot && isJenkins) "${version}-${buildNumber}" else version
+
+        eachFile {
+            expand("version" to fullVersion)
+        }
+    }
+
+    test {
+        useJUnitPlatform()
+        testLogging {
+            exceptionFormat = TestExceptionFormat.FULL
+        }
+    }
+
+    shadowJar {
+        dependencies {
+            include(dependency("net.bytebuddy:byte-buddy:.*"))
+        }
+        relocate("net.bytebuddy", "com.comphenix.net.bytebuddy")
+
+        manifest {
+            attributes(
+                "paperweight-mappings-namespace" to "mojang"
+            )
+        }
+
+        archiveFileName = "ProtocolLib.jar"
+    }
+
+    remap {
+        dependsOn("shadowJar")
+
+        inputTask.set(getByName<ShadowJar>("shadowJar"))
+        version.set(mcVersion)
+        action.set(RemapTask.Action.MOJANG_TO_SPIGOT)
+    }
+
+    assemble {
+        dependsOn("remap")
+    }
+
+    javadoc {
+        options.encoding = "UTF-8"
+    }
+
+    compileJava {
+        options.encoding = "UTF-8"
+    }
+}
+
+mavenPublishing {
+    publishToMavenCentral()
+    signAllPublications()
+
+    coordinates("$group", project.name, "$version")
+
+    pom {
+        name.set(project.name)
+        description.set(project.description)
+        inceptionYear.set("2012")
+        url.set("https://github.com/dmulloy2/ProtocolLib")
+
+        developers {
+            developer {
+                id.set("dmulloy2")
+                name.set("Dan Mulloy")
+                url.set("https://dmulloy2.net/")
+                email.set("dev@dmulloy2.net")
+            }
+        }
+
+        licenses {
+            license {
+                name.set("GNU GENERAL PUBLIC LICENSE - Version 2, June 1991")
+                url.set("https://www.gnu.org/licenses/gpl-2.0.txt")
+                distribution.set("repo")
+            }
+        }
+
+        scm {
+            tag.set("HEAD")
+            url.set("https://github.com/dmulloy2/ProtocolLib")
+            connection.set("scm:git:git://github.com/dmulloy2/ProtocolLib.git")
+            developerConnection.set("scm:git:git@github.com:dmulloy2/ProtocolLib.git")
+        }
+
+        issueManagement {
+            system.set("GitHub Issues")
+            url.set("https://github.com/dmulloy2/ProtocolLib/issues")
+        }
+    }
+}

gradle.properties

@@ -1,2 +1,6 @@
-nexusUsername=""
-nexusPassword=""
+version=5.4.0
+mavenCentralUsername=
+mavenCentralPassword=
+signing.keyId=
+signing.password=
+signing.secretKeyRingFile=

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -83,7 +83,8 @@ done
 # This is normally unused
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -144,7 +145,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
@@ -152,7 +153,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -201,11 +202,11 @@ fi
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \

src/main/java/com/comphenix/protocol/CommandProtocol.java

@@ -20,6 +20,7 @@ import java.io.File;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.nio.file.Path;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.HashSet;
@@ -35,8 +36,8 @@ import org.bukkit.plugin.PluginDescriptionFile;
 import com.comphenix.protocol.error.DetailedErrorReporter;
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.timing.TimedListenerManager;
-import com.comphenix.protocol.timing.TimingReportGenerator;
+import com.comphenix.protocol.timing.TimingReport;
+import com.comphenix.protocol.timing.TimingTrackerManager;
 import com.comphenix.protocol.updater.Updater;
 import com.comphenix.protocol.updater.Updater.UpdateType;
 import com.comphenix.protocol.utility.Closer;
@@ -143,15 +144,14 @@ class CommandProtocol extends CommandBase {
     }
     
     private void toggleTimings(CommandSender sender, String[] args) {
-        TimedListenerManager manager = TimedListenerManager.getInstance();
-        boolean state = !manager.isTiming(); // toggle
+        boolean isNotTracking = !TimingTrackerManager.isTracking();
         
         // Parse the boolean parameter
         if (args.length == 2) {
             Boolean parsed = parseBoolean(toQueue(args, 2), "start");
             
             if (parsed != null) {
-                state = parsed;
+                isNotTracking = parsed;
             } else {
                 sender.sendMessage(ChatColor.RED + "Specify a state: ON or OFF.");
                 return;
@@ -161,31 +161,25 @@ class CommandProtocol extends CommandBase {
             return;
         }
         
-        // Now change the state
-        if (state) {
-            if (manager.startTiming())
+        if (isNotTracking) {
+            if (TimingTrackerManager.startTracking())
                 sender.sendMessage(ChatColor.GOLD + "Started timing packet listeners.");
             else
                 sender.sendMessage(ChatColor.RED + "Packet timing already started.");
         } else {
-            if (manager.stopTiming()) {
-                saveTimings(manager);
+            if (TimingTrackerManager.stopTracking()) {
+                saveTimings(TimingTrackerManager.createReportAndReset());
                 sender.sendMessage(ChatColor.GOLD + "Stopped and saved result in plugin folder.");
             } else {
                 sender.sendMessage(ChatColor.RED + "Packet timing already stopped.");
             }
         }
     }
-    
-    private void saveTimings(TimedListenerManager manager) {
+
+    private void saveTimings(TimingReport report) {
         try {
-            File destination = new File(plugin.getDataFolder(), "Timings - " + System.currentTimeMillis() + ".txt");
-            TimingReportGenerator generator = new TimingReportGenerator();
-            
-            // Print to a text file
-            generator.saveTo(destination, manager);
-            manager.clear();
-            
+            Path path = plugin.getDataFolder().toPath().resolve("timings_" + System.currentTimeMillis() + ".txt");
+            report.saveTo(path);
         } catch (IOException e) {
             reporter.reportMinimal(plugin, "saveTimings()", e);
         }

src/main/java/com/comphenix/protocol/PacketType.java

@@ -5,8 +5,17 @@ import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
-import java.util.*;
-import java.util.function.Consumer;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.UUID;
+import java.util.function.BiConsumer;
+
+import org.apache.commons.lang.WordUtils;
+import org.bukkit.Bukkit;
 
 import com.comphenix.protocol.PacketTypeLookup.ClassLookup;
 import com.comphenix.protocol.events.ConnectionSide;
@@ -17,9 +26,6 @@ import com.comphenix.protocol.utility.MinecraftVersion;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ComparisonChain;
 import com.google.common.collect.Iterables;
-
-import org.apache.commons.lang.WordUtils;
-import org.bukkit.Bukkit;
 /**
  * Represents the type of a packet in a specific protocol.
  * <p>
@@ -29,7 +35,7 @@ import org.bukkit.Bukkit;
 public class PacketType implements Serializable, Cloneable, Comparable<PacketType> {
     // Increment whenever the type changes
     private static final long serialVersionUID = 1L;
-    
+
     /**
      * Represents an unknown packet ID.
      */
@@ -50,7 +56,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
             private static final Sender SENDER = Sender.CLIENT;
 
             @ForceAsync
-            public static final PacketType SET_PROTOCOL =                 new PacketType(PROTOCOL, SENDER, 0x00, "SetProtocol", "C00Handshake");
+            public static final PacketType SET_PROTOCOL =                 new PacketType(PROTOCOL, SENDER, 0x00, "ClientIntentionPacket", "SetProtocol", "C00Handshake");
 
             private static final Client INSTANCE = new Client();
 
@@ -101,119 +107,140 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         public static class Server extends PacketTypeEnum {
             private static final Sender SENDER = Sender.SERVER;
 
-            public static final PacketType BUNDLE =                       new PacketType(PROTOCOL, SENDER, 0x00, "Delimiter", "BundleDelimiterPacket");
-            public static final PacketType SPAWN_ENTITY =                 new PacketType(PROTOCOL, SENDER, 0x01, "SpawnEntity", "SPacketSpawnObject");
-            public static final PacketType SPAWN_ENTITY_EXPERIENCE_ORB =  new PacketType(PROTOCOL, SENDER, 0x02, "SpawnEntityExperienceOrb", "SPacketSpawnExperienceOrb");
-            public static final PacketType NAMED_ENTITY_SPAWN =           new PacketType(PROTOCOL, SENDER, 0x03, "NamedEntitySpawn", "SPacketSpawnPlayer");
-            public static final PacketType ANIMATION =                    new PacketType(PROTOCOL, SENDER, 0x04, "Animation", "SPacketAnimation");
-            public static final PacketType STATISTIC =                    new PacketType(PROTOCOL, SENDER, 0x05, "Statistic", "SPacketStatistics");
-            public static final PacketType BLOCK_CHANGED_ACK =            new PacketType(PROTOCOL, SENDER, 0x06, "BlockChangedAck");
-            public static final PacketType BLOCK_BREAK_ANIMATION =        new PacketType(PROTOCOL, SENDER, 0x07, "BlockBreakAnimation", "SPacketBlockBreakAnim");
-            public static final PacketType TILE_ENTITY_DATA =             new PacketType(PROTOCOL, SENDER, 0x08, "TileEntityData", "SPacketUpdateTileEntity");
-            public static final PacketType BLOCK_ACTION =                 new PacketType(PROTOCOL, SENDER, 0x09, "BlockAction", "SPacketBlockAction");
-            public static final PacketType BLOCK_CHANGE =                 new PacketType(PROTOCOL, SENDER, 0x0A, "BlockChange", "SPacketBlockChange");
-            public static final PacketType BOSS =                         new PacketType(PROTOCOL, SENDER, 0x0B, "Boss", "SPacketUpdateBossInfo");
-            public static final PacketType SERVER_DIFFICULTY =            new PacketType(PROTOCOL, SENDER, 0x0C, "ServerDifficulty", "SPacketServerDifficulty");
+            public static final PacketType BUNDLE =                       new PacketType(PROTOCOL, SENDER, 0x00, "BundleDelimiter", "Delimiter", "BundleDelimiterPacket");
+            public static final PacketType SPAWN_ENTITY =                 new PacketType(PROTOCOL, SENDER, 0x01, "AddEntity", "SpawnEntity", "SPacketSpawnObject");
+            public static final PacketType ANIMATION =                    new PacketType(PROTOCOL, SENDER, 0x02, "Animate", "Animation", "SPacketAnimation");
+            public static final PacketType STATISTIC =                    new PacketType(PROTOCOL, SENDER, 0x03, "AwardStats", "Statistic", "SPacketStatistics");
+            public static final PacketType BLOCK_CHANGED_ACK =            new PacketType(PROTOCOL, SENDER, 0x04, "BlockChangedAck");
+            public static final PacketType BLOCK_BREAK_ANIMATION =        new PacketType(PROTOCOL, SENDER, 0x05, "BlockDestruction", "BlockBreakAnimation", "SPacketBlockBreakAnim");
+            public static final PacketType TILE_ENTITY_DATA =             new PacketType(PROTOCOL, SENDER, 0x06, "BlockEntityData", "TileEntityData", "SPacketUpdateTileEntity");
+            public static final PacketType BLOCK_ACTION =                 new PacketType(PROTOCOL, SENDER, 0x07, "BlockEvent", "BlockAction", "SPacketBlockAction");
+            public static final PacketType BLOCK_CHANGE =                 new PacketType(PROTOCOL, SENDER, 0x08, "BlockUpdate", "BlockChange", "SPacketBlockChange");
+            public static final PacketType BOSS =                         new PacketType(PROTOCOL, SENDER, 0x09, "BossEvent", "Boss", "SPacketUpdateBossInfo");
+            public static final PacketType SERVER_DIFFICULTY =            new PacketType(PROTOCOL, SENDER, 0x0A, "ChangeDifficulty", "ServerDifficulty", "SPacketServerDifficulty");
+            public static final PacketType CHUNK_BATCH_FINISHED =         new PacketType(PROTOCOL, SENDER, 0x0B, "ChunkBatchFinished");
+            public static final PacketType CHUNK_BATCH_START =            new PacketType(PROTOCOL, SENDER, 0x0C, "ChunkBatchStart");
             public static final PacketType CHUNKS_BIOMES =                new PacketType(PROTOCOL, SENDER, 0x0D, "ChunksBiomes", "ClientboundChunksBiomesPacket");
             public static final PacketType CLEAR_TITLES =                 new PacketType(PROTOCOL, SENDER, 0x0E, "ClearTitles");
-            public static final PacketType TAB_COMPLETE =                 new PacketType(PROTOCOL, SENDER, 0x0F, "TabComplete", "SPacketTabComplete");
+            public static final PacketType TAB_COMPLETE =                 new PacketType(PROTOCOL, SENDER, 0x0F, "CommandSuggestions", "TabComplete", "SPacketTabComplete");
             public static final PacketType COMMANDS =                     new PacketType(PROTOCOL, SENDER, 0x10, "Commands");
-            public static final PacketType CLOSE_WINDOW =                 new PacketType(PROTOCOL, SENDER, 0x11, "CloseWindow", "SPacketCloseWindow");
-            public static final PacketType WINDOW_ITEMS =                 new PacketType(PROTOCOL, SENDER, 0x12, "WindowItems", "SPacketWindowItems");
-            public static final PacketType WINDOW_DATA =                  new PacketType(PROTOCOL, SENDER, 0x13, "WindowData", "SPacketWindowProperty");
-            public static final PacketType SET_SLOT =                     new PacketType(PROTOCOL, SENDER, 0x14, "SetSlot", "SPacketSetSlot");
-            public static final PacketType SET_COOLDOWN =                 new PacketType(PROTOCOL, SENDER, 0x15, "SetCooldown", "SPacketCooldown");
-            public static final PacketType CUSTOM_CHAT_COMPLETIONS =      new PacketType(PROTOCOL, SENDER, 0x16, "CustomChatCompletions");
-            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x17, "CustomPayload", "SPacketCustomPayload");
-            public static final PacketType DAMAGE_EVENT =                 new PacketType(PROTOCOL, SENDER, 0x18, "DamageEvent", "ClientboundDamageEventPacket");
-            public static final PacketType DELETE_CHAT_MESSAGE =          new PacketType(PROTOCOL, SENDER, 0x19, "DeleteChat");
-            public static final PacketType KICK_DISCONNECT =              new PacketType(PROTOCOL, SENDER, 0x1A, "KickDisconnect", "SPacketDisconnect");
-            public static final PacketType DISGUISED_CHAT =               new PacketType(PROTOCOL, SENDER, 0x1B, "DisguisedChat");
-            public static final PacketType ENTITY_STATUS =                new PacketType(PROTOCOL, SENDER, 0x1C, "EntityStatus", "SPacketEntityStatus");
-            public static final PacketType EXPLOSION =                    new PacketType(PROTOCOL, SENDER, 0x1D, "Explosion", "SPacketExplosion");
-            public static final PacketType UNLOAD_CHUNK =                 new PacketType(PROTOCOL, SENDER, 0x1E, "UnloadChunk", "SPacketUnloadChunk");
-            public static final PacketType GAME_STATE_CHANGE =            new PacketType(PROTOCOL, SENDER, 0x1F, "GameStateChange", "SPacketChangeGameState");
-            public static final PacketType OPEN_WINDOW_HORSE =            new PacketType(PROTOCOL, SENDER, 0x20, "OpenWindowHorse");
-            public static final PacketType HURT_ANIMATION =               new PacketType(PROTOCOL, SENDER, 0x21, "HurtAnimation", "ClientboundHurtAnimationPacket");
-            public static final PacketType INITIALIZE_BORDER =            new PacketType(PROTOCOL, SENDER, 0x22, "InitializeBorder");
-            public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x23, "KeepAlive", "SPacketKeepAlive");
-            public static final PacketType MAP_CHUNK =                    new PacketType(PROTOCOL, SENDER, 0x24, "LevelChunkWithLight", "MapChunk", "SPacketChunkData");
-            public static final PacketType WORLD_EVENT =                  new PacketType(PROTOCOL, SENDER, 0x25, "WorldEvent", "SPacketEffect");
-            public static final PacketType WORLD_PARTICLES =              new PacketType(PROTOCOL, SENDER, 0x26, "WorldParticles", "SPacketParticles");
-            public static final PacketType LIGHT_UPDATE =                 new PacketType(PROTOCOL, SENDER, 0x27, "LightUpdate");
-            public static final PacketType LOGIN =                        new PacketType(PROTOCOL, SENDER, 0x28, "Login", "SPacketJoinGame");
-            public static final PacketType MAP =                          new PacketType(PROTOCOL, SENDER, 0x29, "Map", "SPacketMaps");
-            public static final PacketType OPEN_WINDOW_MERCHANT =         new PacketType(PROTOCOL, SENDER, 0x2A, "OpenWindowMerchant");
-            public static final PacketType REL_ENTITY_MOVE =              new PacketType(PROTOCOL, SENDER, 0x2B, "Entity$RelEntityMove", "Entity$PacketPlayOutRelEntityMove");
-            public static final PacketType REL_ENTITY_MOVE_LOOK =         new PacketType(PROTOCOL, SENDER, 0x2C, "Entity$RelEntityMoveLook", "Entity$PacketPlayOutRelEntityMoveLook");
-            public static final PacketType ENTITY_LOOK =                  new PacketType(PROTOCOL, SENDER, 0x2D, "Entity$EntityLook", "Entity$PacketPlayOutEntityLook");
-            public static final PacketType VEHICLE_MOVE =                 new PacketType(PROTOCOL, SENDER, 0x2E, "VehicleMove", "SPacketMoveVehicle");
-            public static final PacketType OPEN_BOOK =                    new PacketType(PROTOCOL, SENDER, 0x2F, "OpenBook");
-            public static final PacketType OPEN_WINDOW =                  new PacketType(PROTOCOL, SENDER, 0x30, "OpenWindow", "SPacketOpenWindow");
-            public static final PacketType OPEN_SIGN_EDITOR =             new PacketType(PROTOCOL, SENDER, 0x31, "OpenSignEditor", "SPacketSignEditorOpen");
-            public static final PacketType PING =                         new PacketType(PROTOCOL, SENDER, 0x32, "Ping");
-            public static final PacketType AUTO_RECIPE =                  new PacketType(PROTOCOL, SENDER, 0x33, "AutoRecipe", "SPacketPlaceGhostRecipe");
-            public static final PacketType ABILITIES =                    new PacketType(PROTOCOL, SENDER, 0x34, "Abilities", "SPacketPlayerAbilities");
-            public static final PacketType CHAT =                         new PacketType(PROTOCOL, SENDER, 0x35, "PlayerChat", "Chat", "SPacketChat");
-            public static final PacketType PLAYER_COMBAT_END =            new PacketType(PROTOCOL, SENDER, 0x36, "PlayerCombatEnd");
-            public static final PacketType PLAYER_COMBAT_ENTER =          new PacketType(PROTOCOL, SENDER, 0x37, "PlayerCombatEnter");
-            public static final PacketType PLAYER_COMBAT_KILL =           new PacketType(PROTOCOL, SENDER, 0x38, "PlayerCombatKill");
-            public static final PacketType PLAYER_INFO_REMOVE =           new PacketType(PROTOCOL, SENDER, 0x39, "PlayerInfoRemove");
-            public static final PacketType PLAYER_INFO =                  new PacketType(PROTOCOL, SENDER, 0x3A, "PlayerInfoUpdate", "PlayerInfo");
-            public static final PacketType LOOK_AT =                      new PacketType(PROTOCOL, SENDER, 0x3B, "LookAt", "SPacketPlayerPosLook");
-            public static final PacketType POSITION =                     new PacketType(PROTOCOL, SENDER, 0x3C, "Position");
-            public static final PacketType RECIPES =                      new PacketType(PROTOCOL, SENDER, 0x3D, "Recipes", "SPacketRecipeBook");
-            public static final PacketType ENTITY_DESTROY =               new PacketType(PROTOCOL, SENDER, 0x3E, "EntityDestroy", "SPacketDestroyEntities");
-            public static final PacketType REMOVE_ENTITY_EFFECT =         new PacketType(PROTOCOL, SENDER, 0x3F, "RemoveEntityEffect", "SPacketRemoveEntityEffect");
-            public static final PacketType RESOURCE_PACK_SEND =           new PacketType(PROTOCOL, SENDER, 0x40, "ResourcePackSend", "SPacketResourcePackSend");
-            public static final PacketType RESPAWN =                      new PacketType(PROTOCOL, SENDER, 0x41, "Respawn", "SPacketRespawn");
-            public static final PacketType ENTITY_HEAD_ROTATION =         new PacketType(PROTOCOL, SENDER, 0x42, "EntityHeadRotation", "SPacketEntityHeadLook");
-            public static final PacketType MULTI_BLOCK_CHANGE =           new PacketType(PROTOCOL, SENDER, 0x43, "MultiBlockChange", "SPacketMultiBlockChange");
-            public static final PacketType SELECT_ADVANCEMENT_TAB =       new PacketType(PROTOCOL, SENDER, 0x44, "SelectAdvancementTab", "SPacketSelectAdvancementsTab");
-            public static final PacketType SERVER_DATA =                  new PacketType(PROTOCOL, SENDER, 0x45, "ServerData");
-            public static final PacketType SET_ACTION_BAR_TEXT =          new PacketType(PROTOCOL, SENDER, 0x46, "SetActionBarText");
-            public static final PacketType SET_BORDER_CENTER =            new PacketType(PROTOCOL, SENDER, 0x47, "SetBorderCenter");
-            public static final PacketType SET_BORDER_LERP_SIZE =         new PacketType(PROTOCOL, SENDER, 0x48, "SetBorderLerpSize");
-            public static final PacketType SET_BORDER_SIZE =              new PacketType(PROTOCOL, SENDER, 0x49, "SetBorderSize");
-            public static final PacketType SET_BORDER_WARNING_DELAY =     new PacketType(PROTOCOL, SENDER, 0x4A, "SetBorderWarningDelay");
-            public static final PacketType SET_BORDER_WARNING_DISTANCE =  new PacketType(PROTOCOL, SENDER, 0x4B, "SetBorderWarningDistance");
-            public static final PacketType CAMERA =                       new PacketType(PROTOCOL, SENDER, 0x4C, "Camera", "SPacketCamera");
-            public static final PacketType HELD_ITEM_SLOT =               new PacketType(PROTOCOL, SENDER, 0x4D, "HeldItemSlot", "SPacketHeldItemChange");
-            public static final PacketType VIEW_CENTRE =                  new PacketType(PROTOCOL, SENDER, 0x4E, "ViewCentre");
-            public static final PacketType VIEW_DISTANCE =                new PacketType(PROTOCOL, SENDER, 0x4F, "ViewDistance");
-            public static final PacketType SPAWN_POSITION =               new PacketType(PROTOCOL, SENDER, 0x50, "SpawnPosition", "SPacketSpawnPosition");
-            public static final PacketType SCOREBOARD_DISPLAY_OBJECTIVE = new PacketType(PROTOCOL, SENDER, 0x51, "ScoreboardDisplayObjective", "SPacketDisplayObjective");
-            public static final PacketType ENTITY_METADATA =              new PacketType(PROTOCOL, SENDER, 0x52, "EntityMetadata", "SPacketEntityMetadata");
-            public static final PacketType ATTACH_ENTITY =                new PacketType(PROTOCOL, SENDER, 0x53, "AttachEntity", "SPacketEntityAttach");
-            public static final PacketType ENTITY_VELOCITY =              new PacketType(PROTOCOL, SENDER, 0x54, "EntityVelocity", "SPacketEntityVelocity");
-            public static final PacketType ENTITY_EQUIPMENT =             new PacketType(PROTOCOL, SENDER, 0x55, "EntityEquipment", "SPacketEntityEquipment");
-            public static final PacketType EXPERIENCE =                   new PacketType(PROTOCOL, SENDER, 0x56, "Experience", "SPacketSetExperience");
-            public static final PacketType UPDATE_HEALTH =                new PacketType(PROTOCOL, SENDER, 0x57, "UpdateHealth", "SPacketUpdateHealth");
-            public static final PacketType SCOREBOARD_OBJECTIVE =         new PacketType(PROTOCOL, SENDER, 0x58, "ScoreboardObjective", "SPacketScoreboardObjective");
-            public static final PacketType MOUNT =                        new PacketType(PROTOCOL, SENDER, 0x59, "Mount", "SPacketSetPassengers");
-            public static final PacketType SCOREBOARD_TEAM =              new PacketType(PROTOCOL, SENDER, 0x5A, "ScoreboardTeam", "SPacketTeams");
-            public static final PacketType SCOREBOARD_SCORE =             new PacketType(PROTOCOL, SENDER, 0x5B, "ScoreboardScore", "SPacketUpdateScore");
-            public static final PacketType UPDATE_SIMULATION_DISTANCE =   new PacketType(PROTOCOL, SENDER, 0x5C, "SetSimulationDistance");
-            public static final PacketType SET_SUBTITLE_TEXT =            new PacketType(PROTOCOL, SENDER, 0x5D, "SetSubtitleText");
-            public static final PacketType UPDATE_TIME =                  new PacketType(PROTOCOL, SENDER, 0x5E, "UpdateTime", "SPacketTimeUpdate");
-            public static final PacketType SET_TITLE_TEXT =               new PacketType(PROTOCOL, SENDER, 0x5F, "SetTitleText");
-            public static final PacketType SET_TITLES_ANIMATION =         new PacketType(PROTOCOL, SENDER, 0x60, "SetTitlesAnimation");
-            public static final PacketType ENTITY_SOUND =                 new PacketType(PROTOCOL, SENDER, 0x61, "EntitySound", "SPacketSoundEffect");
-            public static final PacketType NAMED_SOUND_EFFECT =           new PacketType(PROTOCOL, SENDER, 0x62, "NamedSoundEffect");
-            public static final PacketType STOP_SOUND =                   new PacketType(PROTOCOL, SENDER, 0x63, "StopSound");
-            public static final PacketType SYSTEM_CHAT =                  new PacketType(PROTOCOL, SENDER, 0x64, "SystemChat");
-            public static final PacketType PLAYER_LIST_HEADER_FOOTER =    new PacketType(PROTOCOL, SENDER, 0x65, "PlayerListHeaderFooter", "SPacketPlayerListHeaderFooter");
-            public static final PacketType NBT_QUERY =                    new PacketType(PROTOCOL, SENDER, 0x66, "NBTQuery");
-            public static final PacketType COLLECT =                      new PacketType(PROTOCOL, SENDER, 0x67, "Collect", "SPacketCollectItem");
-            public static final PacketType ENTITY_TELEPORT =              new PacketType(PROTOCOL, SENDER, 0x68, "EntityTeleport", "SPacketEntityTeleport");
-            public static final PacketType ADVANCEMENTS =                 new PacketType(PROTOCOL, SENDER, 0x69, "Advancements", "SPacketAdvancementInfo");
-            public static final PacketType UPDATE_ATTRIBUTES =            new PacketType(PROTOCOL, SENDER, 0x6A, "UpdateAttributes", "SPacketEntityProperties");
-            public static final PacketType UPDATE_ENABLED_FEATURES =      new PacketType(PROTOCOL, SENDER, 0x6B, "UpdateEnabledFeatures");
-            public static final PacketType ENTITY_EFFECT =                new PacketType(PROTOCOL, SENDER, 0x6C, "EntityEffect", "SPacketEntityEffect");
-            public static final PacketType RECIPE_UPDATE =                new PacketType(PROTOCOL, SENDER, 0x6D, "RecipeUpdate");
-            public static final PacketType TAGS =                         new PacketType(PROTOCOL, SENDER, 0x6E, "Tags");
-
-            // ---- Removed in 1.9
+            public static final PacketType CLOSE_WINDOW =                 new PacketType(PROTOCOL, SENDER, 0x11, "ContainerClose", "CloseWindow", "SPacketCloseWindow");
+            public static final PacketType WINDOW_ITEMS =                 new PacketType(PROTOCOL, SENDER, 0x12, "ContainerSetContent", "WindowItems", "SPacketWindowItems");
+            public static final PacketType WINDOW_DATA =                  new PacketType(PROTOCOL, SENDER, 0x13, "ContainerSetData", "WindowData", "SPacketWindowProperty");
+            public static final PacketType SET_SLOT =                     new PacketType(PROTOCOL, SENDER, 0x14, "ContainerSetSlot", "SetSlot", "SPacketSetSlot");
+            public static final PacketType COOKIE_REQUEST =               new PacketType(PROTOCOL, SENDER, 0x15, "CookieRequest");
+            public static final PacketType SET_COOLDOWN =                 new PacketType(PROTOCOL, SENDER, 0x16, "Cooldown", "SetCooldown", "SPacketCooldown");
+            public static final PacketType CUSTOM_CHAT_COMPLETIONS =      new PacketType(PROTOCOL, SENDER, 0x17, "CustomChatCompletions");
+            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x18, "CustomPayload", "SPacketCustomPayload");
+            public static final PacketType DAMAGE_EVENT =                 new PacketType(PROTOCOL, SENDER, 0x19, "DamageEvent", "ClientboundDamageEventPacket");
+            public static final PacketType DEBUG_SAMPLE =                 new PacketType(PROTOCOL, SENDER, 0x1A, "DebugSample");
+            public static final PacketType DELETE_CHAT_MESSAGE =          new PacketType(PROTOCOL, SENDER, 0x1B, "DeleteChat");
+            public static final PacketType KICK_DISCONNECT =              new PacketType(PROTOCOL, SENDER, 0x1C, "Disconnect", "KickDisconnect", "SPacketDisconnect");
+            public static final PacketType DISGUISED_CHAT =               new PacketType(PROTOCOL, SENDER, 0x1D, "DisguisedChat");
+            public static final PacketType ENTITY_STATUS =                new PacketType(PROTOCOL, SENDER, 0x1E, "EntityEvent", "EntityStatus", "SPacketEntityStatus");
+            public static final PacketType ENTITY_POSITION_SYNC =         new PacketType(PROTOCOL, SENDER, 0x1F, "EntityPositionSync");
+            public static final PacketType EXPLOSION =                    new PacketType(PROTOCOL, SENDER, 0x20, "Explode", "Explosion", "SPacketExplosion");
+            public static final PacketType UNLOAD_CHUNK =                 new PacketType(PROTOCOL, SENDER, 0x21, "ForgetLevelChunk", "UnloadChunk", "SPacketUnloadChunk");
+            public static final PacketType GAME_STATE_CHANGE =            new PacketType(PROTOCOL, SENDER, 0x22, "GameEvent", "GameStateChange", "SPacketChangeGameState");
+            public static final PacketType OPEN_WINDOW_HORSE =            new PacketType(PROTOCOL, SENDER, 0x23, "HorseScreenOpen", "OpenWindowHorse");
+            public static final PacketType HURT_ANIMATION =               new PacketType(PROTOCOL, SENDER, 0x24, "HurtAnimation", "ClientboundHurtAnimationPacket");
+            public static final PacketType INITIALIZE_BORDER =            new PacketType(PROTOCOL, SENDER, 0x25, "InitializeBorder");
+            public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x26, "KeepAlive", "SPacketKeepAlive");
+            public static final PacketType MAP_CHUNK =                    new PacketType(PROTOCOL, SENDER, 0x27, "LevelChunkWithLight", "MapChunk", "SPacketChunkData");
+            public static final PacketType WORLD_EVENT =                  new PacketType(PROTOCOL, SENDER, 0x28, "LevelEvent", "WorldEvent", "SPacketEffect");
+            public static final PacketType WORLD_PARTICLES =              new PacketType(PROTOCOL, SENDER, 0x29, "LevelParticles", "WorldParticles", "SPacketParticles");
+            public static final PacketType LIGHT_UPDATE =                 new PacketType(PROTOCOL, SENDER, 0x2A, "LightUpdate");
+            public static final PacketType LOGIN =                        new PacketType(PROTOCOL, SENDER, 0x2B, "Login", "SPacketJoinGame");
+            public static final PacketType MAP =                          new PacketType(PROTOCOL, SENDER, 0x2C, "MapItemData", "Map", "SPacketMaps");
+            public static final PacketType OPEN_WINDOW_MERCHANT =         new PacketType(PROTOCOL, SENDER, 0x2D, "MerchantOffers", "OpenWindowMerchant");
+            public static final PacketType REL_ENTITY_MOVE =              new PacketType(PROTOCOL, SENDER, 0x2E, "net.minecraft.network.protocol.game.ClientboundMoveEntityPacket$Pos", "Entity$RelEntityMove", "Entity$PacketPlayOutRelEntityMove");
+            public static final PacketType REL_ENTITY_MOVE_LOOK =         new PacketType(PROTOCOL, SENDER, 0x2F, "net.minecraft.network.protocol.game.ClientboundMoveEntityPacket$PosRot", "Entity$RelEntityMoveLook", "Entity$PacketPlayOutRelEntityMoveLook");
+            public static final PacketType MOVE_MINECART =                new PacketType(PROTOCOL, SENDER, 0x30, "MoveMinecart");
+            public static final PacketType ENTITY_LOOK =                  new PacketType(PROTOCOL, SENDER, 0x31, "net.minecraft.network.protocol.game.ClientboundMoveEntityPacket$Rot", "Entity$EntityLook", "Entity$PacketPlayOutEntityLook");
+            public static final PacketType VEHICLE_MOVE =                 new PacketType(PROTOCOL, SENDER, 0x32, "MoveVehicle", "VehicleMove", "SPacketMoveVehicle");
+            public static final PacketType OPEN_BOOK =                    new PacketType(PROTOCOL, SENDER, 0x33, "OpenBook");
+            public static final PacketType OPEN_WINDOW =                  new PacketType(PROTOCOL, SENDER, 0x34, "OpenScreen", "OpenWindow", "SPacketOpenWindow");
+            public static final PacketType OPEN_SIGN_EDITOR =             new PacketType(PROTOCOL, SENDER, 0x35, "OpenSignEditor", "SPacketSignEditorOpen");
+            public static final PacketType PING =                         new PacketType(PROTOCOL, SENDER, 0x36, "Ping");
+            public static final PacketType PONG_RESPONSE =                new PacketType(PROTOCOL, SENDER, 0x37, "PongResponse");
+            public static final PacketType AUTO_RECIPE =                  new PacketType(PROTOCOL, SENDER, 0x38, "PlaceGhostRecipe", "AutoRecipe", "SPacketPlaceGhostRecipe");
+            public static final PacketType ABILITIES =                    new PacketType(PROTOCOL, SENDER, 0x39, "PlayerAbilities", "Abilities", "SPacketPlayerAbilities");
+            public static final PacketType CHAT =                         new PacketType(PROTOCOL, SENDER, 0x3A, "PlayerChat", "Chat", "SPacketChat");
+            public static final PacketType PLAYER_COMBAT_END =            new PacketType(PROTOCOL, SENDER, 0x3B, "PlayerCombatEnd");
+            public static final PacketType PLAYER_COMBAT_ENTER =          new PacketType(PROTOCOL, SENDER, 0x3C, "PlayerCombatEnter");
+            public static final PacketType PLAYER_COMBAT_KILL =           new PacketType(PROTOCOL, SENDER, 0x3D, "PlayerCombatKill");
+            public static final PacketType PLAYER_INFO_REMOVE =           new PacketType(PROTOCOL, SENDER, 0x3E, "PlayerInfoRemove");
+            public static final PacketType PLAYER_INFO =                  new PacketType(PROTOCOL, SENDER, 0x3F, "PlayerInfoUpdate", "PlayerInfo");
+            public static final PacketType LOOK_AT =                      new PacketType(PROTOCOL, SENDER, 0x40, "PlayerLookAt", "LookAt", "SPacketPlayerPosLook");
+            public static final PacketType POSITION =                     new PacketType(PROTOCOL, SENDER, 0x41, "PlayerPosition", "Position");
+            public static final PacketType PLAYER_ROTATION =              new PacketType(PROTOCOL, SENDER, 0x42, "PlayerRotation");
+            public static final PacketType RECIPE_BOOK_ADD =              new PacketType(PROTOCOL, SENDER, 0x43, "RecipeBookAdd");
+            public static final PacketType RECIPE_BOOK_REMOVE =           new PacketType(PROTOCOL, SENDER, 0x44, "RecipeBookRemove");
+            public static final PacketType RECIPE_BOOK_SETTINGS =         new PacketType(PROTOCOL, SENDER, 0x45, "RecipeBookSettings");
+            public static final PacketType ENTITY_DESTROY =               new PacketType(PROTOCOL, SENDER, 0x46, "RemoveEntities", "EntityDestroy", "SPacketDestroyEntities");
+            public static final PacketType REMOVE_ENTITY_EFFECT =         new PacketType(PROTOCOL, SENDER, 0x47, "RemoveMobEffect", "RemoveEntityEffect", "SPacketRemoveEntityEffect");
+            public static final PacketType RESET_SCORE =                  new PacketType(PROTOCOL, SENDER, 0x48, "ResetScore", "ResetScorePacket");
+            public static final PacketType REMOVE_RESOURCE_PACK =         new PacketType(PROTOCOL, SENDER, 0x49, "ResourcePackPop", "ResourcePackPopPacket");
+            public static final PacketType ADD_RESOURCE_PACK =            new PacketType(PROTOCOL, SENDER, 0x4A, "ResourcePackPush", "ResourcePackPushPacket");
+            public static final PacketType RESPAWN =                      new PacketType(PROTOCOL, SENDER, 0x4B, "Respawn", "SPacketRespawn");
+            public static final PacketType ENTITY_HEAD_ROTATION =         new PacketType(PROTOCOL, SENDER, 0x4C, "RotateHead", "EntityHeadRotation", "SPacketEntityHeadLook");
+            public static final PacketType MULTI_BLOCK_CHANGE =           new PacketType(PROTOCOL, SENDER, 0x4D, "SectionBlocksUpdate", "MultiBlockChange", "SPacketMultiBlockChange");
+            public static final PacketType SELECT_ADVANCEMENT_TAB =       new PacketType(PROTOCOL, SENDER, 0x4E, "SelectAdvancementsTab", "SelectAdvancementTab", "SPacketSelectAdvancementsTab");
+            public static final PacketType SERVER_DATA =                  new PacketType(PROTOCOL, SENDER, 0x4F, "ServerData");
+            public static final PacketType SET_ACTION_BAR_TEXT =          new PacketType(PROTOCOL, SENDER, 0x50, "SetActionBarText");
+            public static final PacketType SET_BORDER_CENTER =            new PacketType(PROTOCOL, SENDER, 0x51, "SetBorderCenter");
+            public static final PacketType SET_BORDER_LERP_SIZE =         new PacketType(PROTOCOL, SENDER, 0x52, "SetBorderLerpSize");
+            public static final PacketType SET_BORDER_SIZE =              new PacketType(PROTOCOL, SENDER, 0x53, "SetBorderSize");
+            public static final PacketType SET_BORDER_WARNING_DELAY =     new PacketType(PROTOCOL, SENDER, 0x54, "SetBorderWarningDelay");
+            public static final PacketType SET_BORDER_WARNING_DISTANCE =  new PacketType(PROTOCOL, SENDER, 0x55, "SetBorderWarningDistance");
+            public static final PacketType CAMERA =                       new PacketType(PROTOCOL, SENDER, 0x56, "SetCamera", "Camera", "SPacketCamera");
+            public static final PacketType VIEW_CENTRE =                  new PacketType(PROTOCOL, SENDER, 0x57, "SetChunkCacheCenter", "ViewCentre");
+            public static final PacketType VIEW_DISTANCE =                new PacketType(PROTOCOL, SENDER, 0x58, "SetChunkCacheRadius", "ViewDistance");
+            public static final PacketType SET_CURSOR_ITEM =              new PacketType(PROTOCOL, SENDER, 0x59, "SetCursorItem");
+            public static final PacketType SPAWN_POSITION =               new PacketType(PROTOCOL, SENDER, 0x5A, "SetDefaultSpawnPosition", "SpawnPosition", "SPacketSpawnPosition");
+            public static final PacketType SCOREBOARD_DISPLAY_OBJECTIVE = new PacketType(PROTOCOL, SENDER, 0x5B, "SetDisplayObjective", "ScoreboardDisplayObjective", "SPacketDisplayObjective");
+            public static final PacketType ENTITY_METADATA =              new PacketType(PROTOCOL, SENDER, 0x5C, "SetEntityData", "EntityMetadata", "SPacketEntityMetadata");
+            public static final PacketType ATTACH_ENTITY =                new PacketType(PROTOCOL, SENDER, 0x5D, "SetEntityLink", "AttachEntity", "SPacketEntityAttach");
+            public static final PacketType ENTITY_VELOCITY =              new PacketType(PROTOCOL, SENDER, 0x5E, "SetEntityMotion", "EntityVelocity", "SPacketEntityVelocity");
+            public static final PacketType ENTITY_EQUIPMENT =             new PacketType(PROTOCOL, SENDER, 0x5F, "SetEquipment", "EntityEquipment", "SPacketEntityEquipment");
+            public static final PacketType EXPERIENCE =                   new PacketType(PROTOCOL, SENDER, 0x60, "SetExperience", "Experience", "SPacketSetExperience");
+            public static final PacketType UPDATE_HEALTH =                new PacketType(PROTOCOL, SENDER, 0x61, "SetHealth", "UpdateHealth", "SPacketUpdateHealth");
+            public static final PacketType HELD_ITEM_SLOT =               new PacketType(PROTOCOL, SENDER, 0x62, "SetHeldSlot", "SetCarriedItem", "HeldItemSlot", "SPacketHeldItemChange");
+            public static final PacketType SCOREBOARD_OBJECTIVE =         new PacketType(PROTOCOL, SENDER, 0x63, "SetObjective", "ScoreboardObjective", "SPacketScoreboardObjective");
+            public static final PacketType MOUNT =                        new PacketType(PROTOCOL, SENDER, 0x64, "SetPassengers", "Mount", "SPacketSetPassengers");
+            public static final PacketType SET_PLAYER_INVENTORY =         new PacketType(PROTOCOL, SENDER, 0x65, "SetPlayerInventory");
+            public static final PacketType SCOREBOARD_TEAM =              new PacketType(PROTOCOL, SENDER, 0x66, "SetPlayerTeam", "ScoreboardTeam", "SPacketTeams");
+            public static final PacketType SCOREBOARD_SCORE =             new PacketType(PROTOCOL, SENDER, 0x67, "SetScore", "ScoreboardScore", "SPacketUpdateScore");
+            public static final PacketType UPDATE_SIMULATION_DISTANCE =   new PacketType(PROTOCOL, SENDER, 0x68, "SetSimulationDistance");
+            public static final PacketType SET_SUBTITLE_TEXT =            new PacketType(PROTOCOL, SENDER, 0x69, "SetSubtitleText");
+            public static final PacketType UPDATE_TIME =                  new PacketType(PROTOCOL, SENDER, 0x6A, "SetTime", "UpdateTime", "SPacketTimeUpdate");
+            public static final PacketType SET_TITLE_TEXT =               new PacketType(PROTOCOL, SENDER, 0x6B, "SetTitleText");
+            public static final PacketType SET_TITLES_ANIMATION =         new PacketType(PROTOCOL, SENDER, 0x6C, "SetTitlesAnimation");
+            public static final PacketType ENTITY_SOUND =                 new PacketType(PROTOCOL, SENDER, 0x6D, "SoundEntity", "EntitySound", "SPacketSoundEffect");
+            public static final PacketType NAMED_SOUND_EFFECT =           new PacketType(PROTOCOL, SENDER, 0x6E, "Sound", "NamedSoundEffect");
+            public static final PacketType START_CONFIGURATION =          new PacketType(PROTOCOL, SENDER, 0x6F, "StartConfiguration");
+            public static final PacketType STOP_SOUND =                   new PacketType(PROTOCOL, SENDER, 0x70, "StopSound");
+            public static final PacketType STORE_COOKIE =                 new PacketType(PROTOCOL, SENDER, 0x71, "StoreCookie");
+            public static final PacketType SYSTEM_CHAT =                  new PacketType(PROTOCOL, SENDER, 0x72, "SystemChat");
+            public static final PacketType PLAYER_LIST_HEADER_FOOTER =    new PacketType(PROTOCOL, SENDER, 0x73, "TabList", "PlayerListHeaderFooter", "SPacketPlayerListHeaderFooter");
+            public static final PacketType NBT_QUERY =                    new PacketType(PROTOCOL, SENDER, 0x74, "TagQuery", "NBTQuery");
+            public static final PacketType COLLECT =                      new PacketType(PROTOCOL, SENDER, 0x75, "TakeItemEntity", "Collect", "SPacketCollectItem");
+            public static final PacketType ENTITY_TELEPORT =              new PacketType(PROTOCOL, SENDER, 0x76, "TeleportEntity", "EntityTeleport", "SPacketEntityTeleport");
+            public static final PacketType TEST_INSTANCE_BLOCK_STATUS =   new PacketType(PROTOCOL, SENDER, 0x77, "ClientboundTestInstanceBlockStatus");
+            public static final PacketType TICKING_STATE =                new PacketType(PROTOCOL, SENDER, 0x78, "TickingState", "TickingStatePacket");
+            public static final PacketType TICKING_STEP_STATE =           new PacketType(PROTOCOL, SENDER, 0x79, "TickingStep", "TickingStepPacket");
+            public static final PacketType TRANSFER =                     new PacketType(PROTOCOL, SENDER, 0x7A, "Transfer");
+            public static final PacketType ADVANCEMENTS =                 new PacketType(PROTOCOL, SENDER, 0x7B, "UpdateAdvancements", "Advancements", "SPacketAdvancementInfo");
+            public static final PacketType UPDATE_ATTRIBUTES =            new PacketType(PROTOCOL, SENDER, 0x7C, "UpdateAttributes", "SPacketEntityProperties");
+            public static final PacketType ENTITY_EFFECT =                new PacketType(PROTOCOL, SENDER, 0x7D, "UpdateMobEffect", "EntityEffect", "SPacketEntityEffect");
+            public static final PacketType RECIPE_UPDATE =                new PacketType(PROTOCOL, SENDER, 0x7E, "UpdateRecipes", "RecipeUpdate");
+            public static final PacketType TAGS =                         new PacketType(PROTOCOL, SENDER, 0x7F, "UpdateTags", "Tags");
+            public static final PacketType PROJECTILE_POWER =             new PacketType(PROTOCOL, SENDER, 0x80, "ProjectilePower");
+            public static final PacketType REPORT_DETAILS =               new PacketType(PROTOCOL, SENDER, 0x81, "CustomReportDetails");
+            public static final PacketType SERVER_LINKS =                 new PacketType(PROTOCOL, SENDER, 0x82, "ServerLinks");
+            public static final PacketType TRACKED_WAYPOINT =             new PacketType(PROTOCOL, SENDER, 0x83, "TrackedWaypoint");
+            public static final PacketType CLEAR_DIALOG =                 new PacketType(PROTOCOL, SENDER, 0x84, "ClearDialog");
+            public static final PacketType SHOW_DIALOG =                  new PacketType(PROTOCOL, SENDER, 0x85, "ShowDialog");
 
             /**
              * @deprecated Removed in 1.9
@@ -233,8 +260,6 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
             @Deprecated
             public static final PacketType UPDATE_ENTITY_NBT =           new PacketType(PROTOCOL, SENDER, 253, "UpdateEntityNBT");
 
-            // ----- Renamed packets
-
             /**
              * @deprecated Renamed to {@link #WINDOW_DATA}
              */
@@ -259,8 +284,6 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
             @Deprecated
             public static final PacketType OPEN_SIGN_ENTITY =             OPEN_SIGN_EDITOR.clone();
 
-            // ----- Replaced in 1.9.4
-
             /**
              * @deprecated Replaced by {@link #TILE_ENTITY_DATA}
              */
@@ -268,8 +291,6 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
             public static final PacketType UPDATE_SIGN =                  MinecraftReflection.signUpdateExists() ? new PacketType(PROTOCOL, SENDER, 252, "UpdateSign") :
                                                                               TILE_ENTITY_DATA.clone();
 
-            // ---- Removed in 1.14
-
             /**
              * @deprecated Removed in 1.14
              */
@@ -346,25 +367,56 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
              * @deprecated Removed in 1.19.3
              */
             @Deprecated
-            public static final PacketType CHAT_PREVIEW =                 new PacketType(PROTOCOL, SENDER, 0x0C, "ChatPreview");
+            public static final PacketType CHAT_PREVIEW =                 new PacketType(PROTOCOL, SENDER, 240, "ChatPreview");
 
             /**
              * @deprecated Removed in 1.19.3
              */
             @Deprecated
-            public static final PacketType PLAYER_CHAT_HEADER =           new PacketType(PROTOCOL, SENDER, 0x32, "PlayerChatHeader");
+            public static final PacketType PLAYER_CHAT_HEADER =           new PacketType(PROTOCOL, SENDER, 239, "PlayerChatHeader");
 
             /**
              * @deprecated Removed in 1.19.3
              */
             @Deprecated
-            public static final PacketType SET_DISPLAY_CHAT_PREVIEW =     new PacketType(PROTOCOL, SENDER, 0x4E, "SetDisplayChatPreview");
+            public static final PacketType SET_DISPLAY_CHAT_PREVIEW =     new PacketType(PROTOCOL, SENDER, 238, "SetDisplayChatPreview");
 
             /**
              * @deprecated Removed in 1.19.3
              */
             @Deprecated
-            public static final PacketType CUSTOM_SOUND_EFFECT =          new PacketType(PROTOCOL, SENDER, 0x16, "CustomSoundEffect", "SPacketCustomSound");
+            public static final PacketType CUSTOM_SOUND_EFFECT =          new PacketType(PROTOCOL, SENDER, 237, "CustomSoundEffect", "SPacketCustomSound");
+
+            /**
+             * @deprecated Removed in 1.20.2: moved to configuration phase packets
+             */
+            @Deprecated
+            public static final PacketType UPDATE_ENABLED_FEATURES =      new PacketType(PROTOCOL, SENDER, 236, "UpdateEnabledFeatures");
+
+            /**
+             * @deprecated Removed in 1.20.2
+             */
+            @Deprecated
+            public static final PacketType NAMED_ENTITY_SPAWN =           new PacketType(PROTOCOL, SENDER, 235, "NamedEntitySpawn", "SPacketSpawnPlayer");
+
+            /**
+             * @deprecated Removed in 1.20.4: replaced with new packets for removing and sending resource packs
+             */
+            @Deprecated
+            public static final PacketType RESOURCE_PACK_SEND =           new PacketType(PROTOCOL, SENDER, 234, "ResourcePackSend", "SPacketResourcePackSend");
+
+            /**
+             * @deprecated Removed in 1.21.2: replaced with individual packets for adding/removing recipes
+             */
+            @Deprecated
+            public static final PacketType RECIPES =                      new PacketType(PROTOCOL, SENDER, 233, "Recipe", "Recipes", "SPacketRecipeBook");
+
+            /**
+             * @deprecated Removed in 1.21.5; replace by SPAWN_ENTITY
+             */
+            @Deprecated
+            public static final PacketType SPAWN_ENTITY_EXPERIENCE_ORB =  new PacketType(PROTOCOL, SENDER, 232, "AddExperienceOrb", "SpawnEntityExperienceOrb", "SPacketSpawnExperienceOrb");
+            
 
             private static final Server INSTANCE = new Server();
 
@@ -386,57 +438,72 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         public static class Client extends PacketTypeEnum {
             private static final Sender SENDER = Sender.CLIENT;
 
-            public static final PacketType TELEPORT_ACCEPT =              new PacketType(PROTOCOL, SENDER, 0x00, "TeleportAccept", "CPacketConfirmTeleport");
-            public static final PacketType TILE_NBT_QUERY =               new PacketType(PROTOCOL, SENDER, 0x01, "TileNBTQuery");
-            public static final PacketType DIFFICULTY_CHANGE =            new PacketType(PROTOCOL, SENDER, 0x02, "DifficultyChange");
-            public static final PacketType CHAT_ACK =                     new PacketType(PROTOCOL, SENDER, 0x03, "ChatAck");
-            public static final PacketType CHAT_COMMAND =                 new PacketType(PROTOCOL, SENDER, 0x04, "ChatCommand");
-            public static final PacketType CHAT =                         new PacketType(PROTOCOL, SENDER, 0x05, "Chat", "CPacketChatMessage");
-            public static final PacketType CHAT_SESSION_UPDATE =          new PacketType(PROTOCOL, SENDER, 0x06, "ChatSessionUpdate");
-            public static final PacketType CLIENT_COMMAND =               new PacketType(PROTOCOL, SENDER, 0x07, "ClientCommand", "CPacketClientStatus");
-            public static final PacketType SETTINGS =                     new PacketType(PROTOCOL, SENDER, 0x08, "Settings", "CPacketClientSettings");
-            public static final PacketType TAB_COMPLETE =                 new PacketType(PROTOCOL, SENDER, 0x09, "TabComplete", "CPacketTabComplete");
-            public static final PacketType ENCHANT_ITEM =                 new PacketType(PROTOCOL, SENDER, 0x0A, "EnchantItem", "CPacketEnchantItem");
-            public static final PacketType WINDOW_CLICK =                 new PacketType(PROTOCOL, SENDER, 0x0B, "WindowClick", "CPacketClickWindow");
-            public static final PacketType CLOSE_WINDOW =                 new PacketType(PROTOCOL, SENDER, 0x0C, "CloseWindow", "CPacketCloseWindow");
-            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x0D, "CustomPayload", "CPacketCustomPayload");
-            public static final PacketType B_EDIT =                       new PacketType(PROTOCOL, SENDER, 0x0E, "BEdit");
-            public static final PacketType ENTITY_NBT_QUERY =             new PacketType(PROTOCOL, SENDER, 0x0F, "EntityNBTQuery");
-            public static final PacketType USE_ENTITY =                   new PacketType(PROTOCOL, SENDER, 0x10, "UseEntity", "CPacketUseEntity");
-            public static final PacketType JIGSAW_GENERATE =              new PacketType(PROTOCOL, SENDER, 0x11, "JigsawGenerate");
-            public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x12, "KeepAlive", "CPacketKeepAlive");
-            public static final PacketType DIFFICULTY_LOCK =              new PacketType(PROTOCOL, SENDER, 0x13, "DifficultyLock");
-            public static final PacketType POSITION =                     new PacketType(PROTOCOL, SENDER, 0x14, "Flying$Position", "Flying$PacketPlayInPosition", "CPacketPlayer$Position");
-            public static final PacketType POSITION_LOOK =                new PacketType(PROTOCOL, SENDER, 0x15, "Flying$PositionLook", "Flying$PacketPlayInPositionLook", "CPacketPlayer$PositionRotation");
-            public static final PacketType LOOK =                         new PacketType(PROTOCOL, SENDER, 0x16, "Flying$Look", "Flying$PacketPlayInLook", "CPacketPlayer$Rotation");
-            public static final PacketType GROUND =                       new PacketType(PROTOCOL, SENDER, 0x17, "Flying$d");
-            public static final PacketType VEHICLE_MOVE =                 new PacketType(PROTOCOL, SENDER, 0x18, "VehicleMove", "CPacketVehicleMove");
-            public static final PacketType BOAT_MOVE =                    new PacketType(PROTOCOL, SENDER, 0x19, "BoatMove", "CPacketSteerBoat");
-            public static final PacketType PICK_ITEM =                    new PacketType(PROTOCOL, SENDER, 0x1A, "PickItem");
-            public static final PacketType AUTO_RECIPE =                  new PacketType(PROTOCOL, SENDER, 0x1B, "AutoRecipe", "CPacketPlaceRecipe");
-            public static final PacketType ABILITIES =                    new PacketType(PROTOCOL, SENDER, 0x1C, "Abilities", "CPacketPlayerAbilities");
-            public static final PacketType BLOCK_DIG =                    new PacketType(PROTOCOL, SENDER, 0x1D, "BlockDig", "CPacketPlayerDigging");
-            public static final PacketType ENTITY_ACTION =                new PacketType(PROTOCOL, SENDER, 0x1E, "EntityAction", "CPacketEntityAction");
-            public static final PacketType STEER_VEHICLE =                new PacketType(PROTOCOL, SENDER, 0x1F, "SteerVehicle", "CPacketInput");
-            public static final PacketType PONG =                         new PacketType(PROTOCOL, SENDER, 0x20, "Pong");
-            public static final PacketType RECIPE_SETTINGS =              new PacketType(PROTOCOL, SENDER, 0x21, "RecipeSettings");
-            public static final PacketType RECIPE_DISPLAYED =             new PacketType(PROTOCOL, SENDER, 0x22, "RecipeDisplayed", "CPacketRecipeInfo");
-            public static final PacketType ITEM_NAME =                    new PacketType(PROTOCOL, SENDER, 0x23, "ItemName");
-            public static final PacketType RESOURCE_PACK_STATUS =         new PacketType(PROTOCOL, SENDER, 0x24, "ResourcePackStatus", "CPacketResourcePackStatus");
-            public static final PacketType ADVANCEMENTS =                 new PacketType(PROTOCOL, SENDER, 0x25, "Advancements", "CPacketSeenAdvancements");
-            public static final PacketType TR_SEL =                       new PacketType(PROTOCOL, SENDER, 0x26, "TrSel");
-            public static final PacketType BEACON =                       new PacketType(PROTOCOL, SENDER, 0x27, "Beacon");
-            public static final PacketType HELD_ITEM_SLOT =               new PacketType(PROTOCOL, SENDER, 0x28, "HeldItemSlot", "CPacketHeldItemChange");
-            public static final PacketType SET_COMMAND_BLOCK =            new PacketType(PROTOCOL, SENDER, 0x29, "SetCommandBlock");
-            public static final PacketType SET_COMMAND_MINECART =         new PacketType(PROTOCOL, SENDER, 0x2A, "SetCommandMinecart");
-            public static final PacketType SET_CREATIVE_SLOT =            new PacketType(PROTOCOL, SENDER, 0x2B, "SetCreativeSlot", "CPacketCreativeInventoryAction");
-            public static final PacketType SET_JIGSAW =                   new PacketType(PROTOCOL, SENDER, 0x2C, "SetJigsaw");
-            public static final PacketType STRUCT =                       new PacketType(PROTOCOL, SENDER, 0x2D, "Struct");
-            public static final PacketType UPDATE_SIGN =                  new PacketType(PROTOCOL, SENDER, 0x2E, "UpdateSign", "CPacketUpdateSign");
-            public static final PacketType ARM_ANIMATION =                new PacketType(PROTOCOL, SENDER, 0x2F, "ArmAnimation", "CPacketAnimation");
-            public static final PacketType SPECTATE =                     new PacketType(PROTOCOL, SENDER, 0x30, "Spectate", "CPacketSpectate");
-            public static final PacketType USE_ITEM =                     new PacketType(PROTOCOL, SENDER, 0x31, "UseItem", "CPacketPlayerTryUseItemOnBlock");
-            public static final PacketType BLOCK_PLACE =                  new PacketType(PROTOCOL, SENDER, 0x32, "BlockPlace", "CPacketPlayerTryUseItem");
+            public static final PacketType TELEPORT_ACCEPT =              new PacketType(PROTOCOL, SENDER, 0x00, "AcceptTeleportation", "TeleportAccept", "CPacketConfirmTeleport");
+            public static final PacketType TILE_NBT_QUERY =               new PacketType(PROTOCOL, SENDER, 0x01, "BlockEntityTagQuery", "TileNBTQuery");
+            public static final PacketType SELECT_BUNDLE_ITEM =           new PacketType(PROTOCOL, SENDER, 0x02, "SelectBundleItem");
+            public static final PacketType DIFFICULTY_CHANGE =            new PacketType(PROTOCOL, SENDER, 0x03, "ChangeDifficulty", "DifficultyChange");
+            public static final PacketType CHANGE_GAME_MODE =             new PacketType(PROTOCOL, SENDER, 0x04, "ChangeGameMode");
+            public static final PacketType CHAT_ACK =                     new PacketType(PROTOCOL, SENDER, 0x05, "ChatAck");
+            public static final PacketType CHAT_COMMAND =                 new PacketType(PROTOCOL, SENDER, 0x06, "ChatCommand");
+            public static final PacketType CHAT_COMMAND_SIGNED =          new PacketType(PROTOCOL, SENDER, 0x07, "ChatCommandSigned");
+            public static final PacketType CHAT =                         new PacketType(PROTOCOL, SENDER, 0x08, "Chat", "CPacketChatMessage");
+            public static final PacketType CHAT_SESSION_UPDATE =          new PacketType(PROTOCOL, SENDER, 0x09, "ChatSessionUpdate");
+            public static final PacketType CHUNK_BATCH_RECEIVED =         new PacketType(PROTOCOL, SENDER, 0x0A, "ChunkBatchReceived");
+            public static final PacketType CLIENT_COMMAND =               new PacketType(PROTOCOL, SENDER, 0x0B, "ClientCommand", "CPacketClientStatus");
+            public static final PacketType CLIENT_TICK_END =              new PacketType(PROTOCOL, SENDER, 0x0C, "ClientTickEnd");
+            public static final PacketType SETTINGS =                     new PacketType(PROTOCOL, SENDER, 0x0D, "ClientInformation", "Settings", "CPacketClientSettings");
+            public static final PacketType TAB_COMPLETE =                 new PacketType(PROTOCOL, SENDER, 0x0E, "CommandSuggestion", "TabComplete", "CPacketTabComplete");
+            public static final PacketType CONFIGURATION_ACK =            new PacketType(PROTOCOL, SENDER, 0x0F, "ConfigurationAcknowledged");
+            public static final PacketType ENCHANT_ITEM =                 new PacketType(PROTOCOL, SENDER, 0x10, "ContainerButtonClick", "EnchantItem", "CPacketEnchantItem");
+            public static final PacketType WINDOW_CLICK =                 new PacketType(PROTOCOL, SENDER, 0x11, "ContainerClick", "WindowClick", "CPacketClickWindow");
+            public static final PacketType CLOSE_WINDOW =                 new PacketType(PROTOCOL, SENDER, 0x12, "ContainerClose", "CloseWindow", "CPacketCloseWindow");
+            public static final PacketType CONTAINER_SLOT_STATE_CHANGED = new PacketType(PROTOCOL, SENDER, 0x13, "ContainerSlotStateChanged", "ContainerSlotStateChangedPacket");
+            public static final PacketType COOKIE_RESPONSE =              new PacketType(PROTOCOL, SENDER, 0x14, "CookieResponse");
+            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x15, "CustomPayload", "CPacketCustomPayload");
+            public static final PacketType DEBUG_SAMPLE_SUBSCRIPTION =    new PacketType(PROTOCOL, SENDER, 0x16, "DebugSampleSubscription");
+            public static final PacketType B_EDIT =                       new PacketType(PROTOCOL, SENDER, 0x17, "EditBook", "BEdit");
+            public static final PacketType ENTITY_NBT_QUERY =             new PacketType(PROTOCOL, SENDER, 0x18, "EntityTagQuery", "EntityNBTQuery");
+            public static final PacketType USE_ENTITY =                   new PacketType(PROTOCOL, SENDER, 0x19, "Interact", "UseEntity", "CPacketUseEntity");
+            public static final PacketType JIGSAW_GENERATE =              new PacketType(PROTOCOL, SENDER, 0x1A, "JigsawGenerate");
+            public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x1B, "KeepAlive", "CPacketKeepAlive");
+            public static final PacketType DIFFICULTY_LOCK =              new PacketType(PROTOCOL, SENDER, 0x1C, "LockDifficulty", "DifficultyLock");
+            public static final PacketType POSITION =                     new PacketType(PROTOCOL, SENDER, 0x1D, "net.minecraft.network.protocol.game.ServerboundMovePlayerPacket$Pos", "Flying$Position", "Flying$PacketPlayInPosition", "CPacketPlayer$Position");
+            public static final PacketType POSITION_LOOK =                new PacketType(PROTOCOL, SENDER, 0x1E, "net.minecraft.network.protocol.game.ServerboundMovePlayerPacket$PosRot", "Flying$PositionLook", "Flying$PacketPlayInPositionLook", "CPacketPlayer$PositionRotation");
+            public static final PacketType LOOK =                         new PacketType(PROTOCOL, SENDER, 0x1F, "net.minecraft.network.protocol.game.ServerboundMovePlayerPacket$Rot", "Flying$Look", "Flying$PacketPlayInLook", "CPacketPlayer$Rotation");
+            public static final PacketType GROUND =                       new PacketType(PROTOCOL, SENDER, 0x20, "net.minecraft.network.protocol.game.ServerboundMovePlayerPacket$StatusOnly", "Flying$d");
+            public static final PacketType VEHICLE_MOVE =                 new PacketType(PROTOCOL, SENDER, 0x21, "MoveVehicle", "VehicleMove", "CPacketVehicleMove");
+            public static final PacketType BOAT_MOVE =                    new PacketType(PROTOCOL, SENDER, 0x22, "PaddleBoat", "BoatMove", "CPacketSteerBoat");
+            public static final PacketType PICK_ITEM_FROM_BLOCK =         new PacketType(PROTOCOL, SENDER, 0x23, "PickItemFromBlock");
+            public static final PacketType PICK_ITEM =                    new PacketType(PROTOCOL, SENDER, 0x24, "PickItemFromEntity", "PickItem");
+            public static final PacketType PING_REQUEST =                 new PacketType(PROTOCOL, SENDER, 0x25, "PingRequest");
+            public static final PacketType AUTO_RECIPE =                  new PacketType(PROTOCOL, SENDER, 0x26, "PlaceRecipe", "AutoRecipe", "CPacketPlaceRecipe");
+            public static final PacketType ABILITIES =                    new PacketType(PROTOCOL, SENDER, 0x27, "PlayerAbilities", "Abilities", "CPacketPlayerAbilities");
+            public static final PacketType BLOCK_DIG =                    new PacketType(PROTOCOL, SENDER, 0x28, "PlayerAction", "BlockDig", "CPacketPlayerDigging");
+            public static final PacketType ENTITY_ACTION =                new PacketType(PROTOCOL, SENDER, 0x29, "PlayerCommand", "EntityAction", "CPacketEntityAction");
+            public static final PacketType STEER_VEHICLE =                new PacketType(PROTOCOL, SENDER, 0x2A, "PlayerInput", "SteerVehicle", "CPacketInput");
+            public static final PacketType PLAYER_LOADED =                new PacketType(PROTOCOL, SENDER, 0x2B, "PlayerLoaded");
+            public static final PacketType PONG =                         new PacketType(PROTOCOL, SENDER, 0x2C, "Pong");
+            public static final PacketType RECIPE_SETTINGS =              new PacketType(PROTOCOL, SENDER, 0x2D, "RecipeBookChangeSettings", "RecipeSettings");
+            public static final PacketType RECIPE_DISPLAYED =             new PacketType(PROTOCOL, SENDER, 0x2E, "RecipeBookSeenRecipe", "RecipeDisplayed", "CPacketRecipeInfo");
+            public static final PacketType ITEM_NAME =                    new PacketType(PROTOCOL, SENDER, 0x2F, "RenameItem", "ItemName");
+            public static final PacketType RESOURCE_PACK_STATUS =         new PacketType(PROTOCOL, SENDER, 0x30, "ResourcePack", "ResourcePackStatus", "CPacketResourcePackStatus");
+            public static final PacketType ADVANCEMENTS =                 new PacketType(PROTOCOL, SENDER, 0x31, "SeenAdvancements", "Advancements", "CPacketSeenAdvancements");
+            public static final PacketType TR_SEL =                       new PacketType(PROTOCOL, SENDER, 0x32, "SelectTrade", "TrSel");
+            public static final PacketType BEACON =                       new PacketType(PROTOCOL, SENDER, 0x33, "SetBeacon", "Beacon");
+            public static final PacketType HELD_ITEM_SLOT =               new PacketType(PROTOCOL, SENDER, 0x34, "SetCarriedItem", "HeldItemSlot", "CPacketHeldItemChange");
+            public static final PacketType SET_COMMAND_BLOCK =            new PacketType(PROTOCOL, SENDER, 0x35, "SetCommandBlock");
+            public static final PacketType SET_COMMAND_MINECART =         new PacketType(PROTOCOL, SENDER, 0x36, "SetCommandMinecart");
+            public static final PacketType SET_CREATIVE_SLOT =            new PacketType(PROTOCOL, SENDER, 0x37, "SetCreativeModeSlot", "SetCreativeSlot", "CPacketCreativeInventoryAction");
+            public static final PacketType SET_JIGSAW =                   new PacketType(PROTOCOL, SENDER, 0x38, "SetJigsawBlock", "SetJigsaw");
+            public static final PacketType STRUCT =                       new PacketType(PROTOCOL, SENDER, 0x39, "SetStructureBlock", "Struct");
+            public static final PacketType SET_TEST_BLOCK =               new PacketType(PROTOCOL, SENDER, 0x3A, "SetTestBlock");
+            public static final PacketType UPDATE_SIGN =                  new PacketType(PROTOCOL, SENDER, 0x3B, "SignUpdate", "UpdateSign", "CPacketUpdateSign");
+            public static final PacketType ARM_ANIMATION =                new PacketType(PROTOCOL, SENDER, 0x3C, "Swing", "ArmAnimation", "CPacketAnimation");
+            public static final PacketType SPECTATE =                     new PacketType(PROTOCOL, SENDER, 0x3D, "TeleportToEntity", "Spectate", "CPacketSpectate");
+            public static final PacketType TEST_INSTANCE_BLOCK_ACTION =   new PacketType(PROTOCOL, SENDER, 0x3E, "TestInstanceBlockAction");
+            public static final PacketType USE_ITEM_ON =                  new PacketType(PROTOCOL, SENDER, 0x3F, "UseItemOn", "BlockPlace", "CPacketPlayerTryUseItemOnBlock");
+            public static final PacketType USE_ITEM =                     new PacketType(PROTOCOL, SENDER, 0x40, "UseItem", "CPacketPlayerTryUseItem");
+            public static final PacketType CUSTOM_CLICK_ACTION =          new PacketType(PROTOCOL, SENDER, 0x41, "CustomClickAction");
 
             /**
              * @deprecated Removed in 1.17
@@ -454,7 +521,13 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
              * @deprecated Removed in 1.19.3
              */
             @Deprecated
-            public static final PacketType CHAT_PREVIEW =                 new PacketType(PROTOCOL, SENDER, 0x06, "ChatPreview");
+            public static final PacketType CHAT_PREVIEW =                 new PacketType(PROTOCOL, SENDER, 253, "ChatPreview");
+
+            /**
+             * @deprecated Renamed to USE_ITEM_ON
+             */
+            @Deprecated
+            public static final PacketType BLOCK_PLACE = USE_ITEM_ON.clone();
 
             private static final Client INSTANCE = new Client();
 
@@ -489,9 +562,9 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
             private static final Sender SENDER = Sender.SERVER;
 
             @ForceAsync
-            public static final PacketType SERVER_INFO =                  new PacketType(PROTOCOL, SENDER, 0x00, "ServerInfo", "SPacketServerInfo");
+            public static final PacketType SERVER_INFO =                  new PacketType(PROTOCOL, SENDER, 0x00, "StatusResponse", "ServerInfo", "SPacketServerInfo");
             @ForceAsync
-            public static final PacketType PONG =                         new PacketType(PROTOCOL, SENDER, 0x01, "Pong", "SPacketPong");
+            public static final PacketType PONG =                         new PacketType(PROTOCOL, SENDER, 0x01, "PongResponse", "Pong", "SPacketPong");
 
             /**
              * @deprecated Renamed to {@link #SERVER_INFO}
@@ -520,9 +593,9 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         public static class Client extends PacketTypeEnum {
             private static final Sender SENDER = Sender.CLIENT;
 
-            public static final PacketType START =                        new PacketType(PROTOCOL, SENDER, 0x00, "Start", "CPacketServerQuery");
+            public static final PacketType START =                        new PacketType(PROTOCOL, SENDER, 0x00, "StatusRequest", "Start", "CPacketServerQuery");
             @ForceAsync
-            public static final PacketType PING =                         new PacketType(PROTOCOL, SENDER, 0x01, "Ping", "CPacketPing");
+            public static final PacketType PING =                         new PacketType(PROTOCOL, SENDER, 0x01, "PingRequest", "Ping", "CPacketPing");
 
             private static final Client INSTANCE = new Client();
 
@@ -557,11 +630,12 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
             private static final Sender SENDER = Sender.SERVER;
 
             @ForceAsync
-            public static final PacketType DISCONNECT =                   new PacketType(PROTOCOL, SENDER, 0x00, "Disconnect", "SPacketDisconnect");
-            public static final PacketType ENCRYPTION_BEGIN =             new PacketType(PROTOCOL, SENDER, 0x01, "EncryptionBegin", "SPacketEncryptionRequest");
-            public static final PacketType SUCCESS =                      new PacketType(PROTOCOL, SENDER, 0x02, "Success", "SPacketLoginSuccess");
-            public static final PacketType SET_COMPRESSION =              new PacketType(PROTOCOL, SENDER, 0x03, "SetCompression", "SPacketEnableCompression");
-            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x04, "CustomPayload", "SPacketCustomPayload");
+            public static final PacketType DISCONNECT =                   new PacketType(PROTOCOL, SENDER, 0x00, "LoginDisconnect", "Disconnect", "SPacketDisconnect");
+            public static final PacketType ENCRYPTION_BEGIN =             new PacketType(PROTOCOL, SENDER, 0x01, "Hello", "EncryptionBegin", "SPacketEncryptionRequest");
+            public static final PacketType SUCCESS =                      new PacketType(PROTOCOL, SENDER, 0x02, "LoginFinished", "GameProfile", "Success", "SPacketLoginSuccess");
+            public static final PacketType SET_COMPRESSION =              new PacketType(PROTOCOL, SENDER, 0x03, "LoginCompression", "SetCompression", "SPacketEnableCompression");
+            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x04, "CustomQuery", "CustomPayload", "SPacketCustomPayload");
+            public static final PacketType COOKIE_REQUEST =               new PacketType(PROTOCOL, SENDER, 0x05, "CookieRequest");
 
             private static final Server INSTANCE = new Server();
 
@@ -583,9 +657,11 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         public static class Client extends PacketTypeEnum {
             private static final Sender SENDER = Sender.CLIENT;
 
-            public static final PacketType START =                        new PacketType(PROTOCOL, SENDER, 0x00, "Start", "CPacketLoginStart");
-            public static final PacketType ENCRYPTION_BEGIN =             new PacketType(PROTOCOL, SENDER, 0x01, "EncryptionBegin", "CPacketEncryptionResponse");
-            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x02, "CustomPayload", "CPacketCustomPayload");
+            public static final PacketType START =                        new PacketType(PROTOCOL, SENDER, 0x00, "Hello", "Start", "CPacketLoginStart");
+            public static final PacketType ENCRYPTION_BEGIN =             new PacketType(PROTOCOL, SENDER, 0x01, "Key", "EncryptionBegin", "CPacketEncryptionResponse");
+            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x02, "CustomQueryAnswer", "CustomPayload", "CPacketCustomPayload");
+            public static final PacketType LOGIN_ACK =                    new PacketType(PROTOCOL, SENDER, 0x03, "LoginAcknowledged");
+            public static final PacketType COOKIE_RESPONSE =              new PacketType(PROTOCOL, SENDER, 0x04, "CookieResponse");
 
             private static final Client INSTANCE = new Client();
 
@@ -605,6 +681,82 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         }
     }
 
+    /**
+     * Packets sent and received during client configuration.
+     * @author Pasqual Koschmieder
+     */
+    public static class Configuration {
+        static final Protocol PROTOCOL = Protocol.CONFIGURATION;
+
+        /**
+         * Outgoing packets.
+         */
+        public static class Server extends PacketTypeEnum {
+            private static final Sender SENDER = Sender.SERVER;
+
+            public static final PacketType COOKIE_REQUEST =               new PacketType(PROTOCOL, SENDER, 0x00, "CookieRequest");
+            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x01, "CustomPayload");
+            public static final PacketType DISCONNECT =                   new PacketType(PROTOCOL, SENDER, 0x02, "Disconnect");
+            public static final PacketType FINISH_CONFIGURATION =         new PacketType(PROTOCOL, SENDER, 0x03, "FinishConfiguration");
+            public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x04, "KeepAlive");
+            public static final PacketType PING =                         new PacketType(PROTOCOL, SENDER, 0x05, "Ping");
+            public static final PacketType RESET_CHAT =                   new PacketType(PROTOCOL, SENDER, 0x06, "ResetChat");
+            public static final PacketType REGISTRY_DATA =                new PacketType(PROTOCOL, SENDER, 0x07, "RegistryData");
+            public static final PacketType REMOVE_RESOURCE_PACK =         new PacketType(PROTOCOL, SENDER, 0x08, "ResourcePackPop");
+            public static final PacketType ADD_RESOURCE_PACK =            new PacketType(PROTOCOL, SENDER, 0x09, "ResourcePackPush");
+            public static final PacketType STORE_COOKIE =                 new PacketType(PROTOCOL, SENDER, 0x0A, "StoreCookie");
+            public static final PacketType TRANSFER =                     new PacketType(PROTOCOL, SENDER, 0x0B, "Transfer");
+            public static final PacketType UPDATE_ENABLED_FEATURES =      new PacketType(PROTOCOL, SENDER, 0x0C, "UpdateEnabledFeatures");
+            public static final PacketType UPDATE_TAGS =                  new PacketType(PROTOCOL, SENDER, 0x0D, "UpdateTags");
+            public static final PacketType SELECT_KNOWN_PACKS =           new PacketType(PROTOCOL, SENDER, 0x0E, "ClientboundSelectKnownPacks");
+            public static final PacketType REPORT_DETAILS =               new PacketType(PROTOCOL, SENDER, 0x0F, "CustomReportDetails");
+            public static final PacketType SERVER_LINKS =                 new PacketType(PROTOCOL, SENDER, 0x10, "ServerLinks");
+            public static final PacketType CLEAR_DIALOG =                 new PacketType(PROTOCOL, SENDER, 0x11, "ClearDialog");
+            public static final PacketType SHOW_DIALOG =                  new PacketType(PROTOCOL, SENDER, 0x12, "ShowDialog");
+
+            /**
+             * @deprecated Removed in 1.20.4: replaced with new packets for removing and sending resource packs
+             */
+            @Deprecated
+            public static final PacketType RESOURCE_PACK =                new PacketType(PROTOCOL, SENDER, 255, "ResourcePack");
+            
+            private static final Server INSTANCE = new Server();
+
+            // Prevent accidental construction
+            private Server() { super(); }
+
+            public static Server getInstance() {
+                return INSTANCE;
+            }
+        }
+
+        /**
+         * Incoming packets.
+         */
+        public static class Client extends PacketTypeEnum {
+            private static final Sender SENDER = Sender.CLIENT;
+
+            public static final PacketType CLIENT_INFORMATION =           new PacketType(PROTOCOL, SENDER, 0x00, "ClientInformation");
+            public static final PacketType COOKIE_RESPONSE =              new PacketType(PROTOCOL, SENDER, 0x01, "CookieResponse");
+            public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x02, "CustomPayload");
+            public static final PacketType FINISH_CONFIGURATION =         new PacketType(PROTOCOL, SENDER, 0x03, "FinishConfiguration");
+            public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x04, "KeepAlive");
+            public static final PacketType PONG =                         new PacketType(PROTOCOL, SENDER, 0x05, "Pong");
+            public static final PacketType RESOURCE_PACK_ACK =            new PacketType(PROTOCOL, SENDER, 0x06, "ResourcePack");
+            public static final PacketType SELECT_KNOWN_PACKS =           new PacketType(PROTOCOL, SENDER, 0x07, "ServerboundSelectKnownPacks");
+            public static final PacketType CUSTOM_CLICK_ACTION =          new PacketType(PROTOCOL, SENDER, 0x08, "CustomClickAction");
+
+            private static final Client INSTANCE = new Client();
+
+            // Prevent accidental construction
+            private Client() { super(); }
+
+            public static Client getInstance() {
+                return INSTANCE;
+            }
+        }
+    }
+
     /**
      * Represents the different protocol or connection states.
      * @author Kristian
@@ -614,11 +766,8 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         PLAY("Play", "game"),
         STATUS("Status", "status"),
         LOGIN("Login", "login"),
-
-        /**
-         * Only for packets removed in Minecraft 1.7.2
-         */
-        LEGACY("", "");
+        CONFIGURATION("Configuration", "configuration"),
+        UNKNOWN("", "");
 
         private final String packetName;
         private final String mojangName;
@@ -634,13 +783,17 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
          * @return The corresponding protocol.
          */
         public static Protocol fromVanilla(Enum<?> vanilla) {
+            if (vanilla == null) {
+                return UNKNOWN;
+            }
+
             switch (vanilla.name()) {
                 case "HANDSHAKING": return HANDSHAKING;
                 case "PLAY": return PLAY;
                 case "STATUS": return STATUS;
                 case "LOGIN": return LOGIN;
-                default:
-                    throw new IllegalArgumentException("Unrecognized vanilla enum " + vanilla);
+                case "CONFIGURATION": return CONFIGURATION;
+                default: return UNKNOWN;
             }
         }
 
@@ -731,7 +884,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
     private boolean forceAsync;
 
     private boolean dynamic;
-    private int hashCode;
+    private transient int hashCode;
 
     /**
      * Retrieve the current packet/legacy lookup.
@@ -747,7 +900,9 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
                 addPacketTypes(Status.Client.getInstance()).
                 addPacketTypes(Status.Server.getInstance()).
                 addPacketTypes(Login.Client.getInstance()).
-                addPacketTypes(Login.Server.getInstance());
+                addPacketTypes(Login.Server.getInstance()).
+                addPacketTypes(Configuration.Client.getInstance()).
+                addPacketTypes(Configuration.Server.getInstance());
         }
         return LOOKUP;
     }
@@ -854,6 +1009,14 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         }
     }
 
+    private static String formatSimpleClassName(Protocol protocol, Sender sender, String name) {
+        return "Packet" + protocol.getPacketName() + sender.getPacketName() + name;
+    }
+
+    private static String formatSimpleMojangClassName(Protocol protocol, Sender sender, String name) {
+        return sender.getMojangName() + name + "Packet";
+    }
+
     private static String formatMojangClassName(Protocol protocol, Sender sender, String name) {
         return "net.minecraft.network.protocol." + protocol.getMojangName() + "." + sender.getMojangName()
                 + name + "Packet";
@@ -924,7 +1087,8 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         return type;
     }
 
-    static Consumer<String> onDynamicCreate = x -> {};
+    static BiConsumer<PacketType, String> onDynamicCreate = (type, className) -> {};
+    static BiConsumer<PacketType, Integer> onIdMismatch = (type, newId) -> {};
 
     /**
      * Retrieve a packet type from a protocol, sender, ID, and class for 1.8+
@@ -942,7 +1106,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 
         // Check the map first
         String className = packetClass.getName();
-        PacketType type = find(map, className);
+        PacketType type = find(map, packetClass);
         if (type == null) {
             // Guess we don't support this packet :/
             type = new PacketType(protocol, sender, packetId, PROTOCOL_VERSION, className);
@@ -950,14 +1114,17 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 
             // Many may be scheduled, but only the first will be executed
             scheduleRegister(type, "Dynamic-" + UUID.randomUUID().toString());
-            onDynamicCreate.accept(className);
+            onDynamicCreate.accept(type, className);
+        } else if (packetId != type.getCurrentId()) {
+        	onIdMismatch.accept(type, packetId);
         }
 
         return type;
     }
 
-    private static PacketType find(Map<String, PacketType> map, String clazz) {
-        PacketType ret = map.get(clazz);
+    private static PacketType find(Map<String, PacketType> map, Class<?> packetClass) {
+    	String className = packetClass.getName();
+        PacketType ret = map.get(className);
         if (ret != null) {
             return ret;
         }
@@ -967,7 +1134,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
             List<String> aliases = check.getClassNames();
             if (aliases.size() > 1) {
                 for (String alias : aliases) {
-                    if (alias.equals(clazz)) {
+                    if (alias.equals(className) || alias.equals(packetClass.getSimpleName())) {
                         // We have a match!
                         return check;
                     }
@@ -981,8 +1148,11 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
     /**
      * Lookup a packet type from a packet class.
      * @param packetClass - the packet class.
-     * @return The corresponding packet type, or NULL if not found.
+     * @return The corresponding packet type, never null.
+     * @throws IllegalArgumentException if the given packet class is not a registered packet.
+     * @deprecated since 1.20.2 there are packet classes that are shared between protocol states, therefore the result can be invalid.
      */
+    @Deprecated
     public static PacketType fromClass(Class<?> packetClass) {
         PacketType type = PacketRegistry.getPacketType(packetClass);
 
@@ -1086,7 +1256,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
         this.sender = Preconditions.checkNotNull(sender, "sender cannot be NULL");
         this.currentId = currentId;
         this.version = version;
-        
+
         this.classNames = new ArrayList<>();
         for (String classname : names) {
             if (isMcpPacketName(classname)) { // Minecraft MCP packets
@@ -1094,6 +1264,9 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
             } else {
                 classNames.add(formatClassName(protocol, sender, classname));
                 classNames.add(formatMojangClassName(protocol, sender, classname));
+                classNames.add(formatSimpleClassName(protocol, sender, classname));
+                classNames.add(formatSimpleMojangClassName(protocol, sender, classname));
+                classNames.add(classname);
             }
         }
 

src/main/java/com/comphenix/protocol/PacketTypeLookup.java

@@ -17,6 +17,7 @@ import com.google.common.collect.Multimap;
  * @author Kristian
  */
 class PacketTypeLookup {
+
     public static class ProtocolSenderLookup {
         // Unroll lookup for performance reasons
         public final IntegerMap<PacketType> HANDSHAKE_CLIENT = new IntegerMap<>();
@@ -27,6 +28,8 @@ class PacketTypeLookup {
         public final IntegerMap<PacketType> STATUS_SERVER = new IntegerMap<>();
         public final IntegerMap<PacketType> LOGIN_CLIENT = new IntegerMap<>();
         public final IntegerMap<PacketType> LOGIN_SERVER = new IntegerMap<>();
+        public final IntegerMap<PacketType> CONFIGURATION_CLIENT = new IntegerMap<>();
+        public final IntegerMap<PacketType> CONFIGURATION_SERVER = new IntegerMap<>();
         
         /**
          * Retrieve the correct integer map for a specific protocol and sender.
@@ -44,6 +47,8 @@ class PacketTypeLookup {
                     return sender == Sender.CLIENT ? STATUS_CLIENT : STATUS_SERVER;
                 case LOGIN:
                     return sender == Sender.CLIENT ? LOGIN_CLIENT : LOGIN_SERVER;
+                case CONFIGURATION:
+                    return sender == Sender.CLIENT ? CONFIGURATION_CLIENT : CONFIGURATION_SERVER;
                 default:
                     throw new IllegalArgumentException("Unable to find protocol " + protocol);
             }
@@ -60,7 +65,9 @@ class PacketTypeLookup {
         public final Map<String, PacketType> STATUS_SERVER = new ConcurrentHashMap<>();
         public final Map<String, PacketType> LOGIN_CLIENT = new ConcurrentHashMap<>();
         public final Map<String, PacketType> LOGIN_SERVER = new ConcurrentHashMap<>();
-        
+        public final Map<String, PacketType> CONFIGURATION_CLIENT = new ConcurrentHashMap<>();
+        public final Map<String, PacketType> CONFIGURATION_SERVER = new ConcurrentHashMap<>();
+
         /**
          * Retrieve the correct integer map for a specific protocol and sender.
          * @param protocol - the protocol.
@@ -77,17 +84,14 @@ class PacketTypeLookup {
                     return sender == Sender.CLIENT ? STATUS_CLIENT : STATUS_SERVER;
                 case LOGIN:
                     return sender == Sender.CLIENT ? LOGIN_CLIENT : LOGIN_SERVER;
+                case CONFIGURATION:
+                    return sender == Sender.CLIENT ? CONFIGURATION_CLIENT : CONFIGURATION_SERVER;
                 default:
                     throw new IllegalArgumentException("Unable to find protocol " + protocol);
             }
         }
     }
     
-    // Packet IDs from 1.6.4 and below
-    private final IntegerMap<PacketType> legacyLookup = new IntegerMap<>();
-    private final IntegerMap<PacketType> serverLookup = new IntegerMap<>();
-    private final IntegerMap<PacketType> clientLookup = new IntegerMap<>();
-    
     // Packets for 1.7.2
     private final ProtocolSenderLookup idLookup = new ProtocolSenderLookup();
 
@@ -119,9 +123,11 @@ class PacketTypeLookup {
      * Retrieve a packet type from a legacy (1.6.4 and below) packet ID.
      * @param packetId - the legacy packet ID.
      * @return The corresponding packet type, or NULL if not found.
+     * @deprecated no longer works and will always return null
      */
+    @Deprecated
     public PacketType getFromLegacy(int packetId) {
-        return legacyLookup.get(packetId);
+    	return null;
     }
     
     /**
@@ -138,20 +144,11 @@ class PacketTypeLookup {
      * @param packetId - the legacy packet ID.
      * @param preference - which packet type to look for first.
      * @return The corresponding packet type, or NULL if not found.
+     * @deprecated no longer works and will always return null
      */
-    public PacketType getFromLegacy(int packetId, Sender preference) {  
-        if (preference == Sender.CLIENT)
-            return getFirst(packetId, clientLookup, serverLookup);
-        else
-            return getFirst(packetId, serverLookup, clientLookup);
-    }
-    
-    // Helper method for looking up in two sets
-    private <T> T getFirst(int packetId, IntegerMap<T> first, IntegerMap<T> second) {
-        if (first.containsKey(packetId))
-            return first.get(packetId);
-        else
-            return second.get(packetId);
+    @Deprecated
+    public PacketType getFromLegacy(int packetId, Sender preference) {
+    	return null;
     }
     
     /**
@@ -168,7 +165,8 @@ class PacketTypeLookup {
     }
 
     public PacketType getFromCurrent(Protocol protocol, Sender sender, String name) {
-        return classLookup.getMap(protocol, sender).get(name);
+        Map<String, PacketType> map = classLookup.getMap(protocol, sender);
+        return map.get(name);
     }
 
     public ClassLookup getClassLookup() {

src/main/java/com/comphenix/protocol/ProtocolLib.java

@@ -37,21 +37,19 @@ import com.google.common.collect.Iterables;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.HashSet;
-import java.util.Optional;
+import java.util.List;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
 import java.util.logging.Handler;
 import java.util.logging.Level;
 import java.util.logging.LogRecord;
 import java.util.logging.Logger;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
 import org.bukkit.Server;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.PluginCommand;
-import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
 
@@ -76,8 +74,6 @@ public class ProtocolLib extends JavaPlugin {
 
     public static final ReportType REPORT_CANNOT_PARSE_MINECRAFT_VERSION = new ReportType(
             "Unable to retrieve current Minecraft version. Assuming %s");
-    public static final ReportType REPORT_CANNOT_DETECT_CONFLICTING_PLUGINS = new ReportType(
-            "Unable to detect conflicting plugin versions.");
     public static final ReportType REPORT_CANNOT_REGISTER_COMMAND = new ReportType("Cannot register command %s: %s");
 
     public static final ReportType REPORT_CANNOT_CREATE_TIMEOUT_TASK = new ReportType(
@@ -166,7 +162,7 @@ public class ProtocolLib extends JavaPlugin {
                     : new DefaultScheduler(this);
 
             // Check for other versions
-            this.checkConflictingVersions();
+            scanForOtherProtocolLibJars();
 
             // Handle unexpected Minecraft versions
             MinecraftVersion version = this.verifyMinecraftVersion();
@@ -309,6 +305,14 @@ public class ProtocolLib extends JavaPlugin {
         logger.addHandler(this.redirectHandler);
     }
 
+    private void highlyVisibleError(String... lines) {
+        Logger directLogging = Logger.getLogger("Minecraft");
+
+        for (String line : ChatExtensions.toFlowerBox(lines, "*", 3, 1)) {
+            directLogging.severe(line);
+        }
+    }
+
     @Override
     public void onEnable() {
         try {
@@ -317,23 +321,14 @@ public class ProtocolLib extends JavaPlugin {
 
             // Silly plugin reloaders!
             if (protocolManager == null) {
-                Logger directLogging = Logger.getLogger("Minecraft");
-                String[] message = new String[]{
-                        " ProtocolLib does not support plugin reloaders! ", " Please use the built-in reload command! "
-                };
-
-                // Print as severe
-                for (String line : ChatExtensions.toFlowerBox(message, "*", 3, 1)) {
-                    directLogging.severe(line);
-                }
-
-                this.disablePlugin();
+                highlyVisibleError(
+                    " ProtocolLib does not support plugin reloaders! ",
+                    " Please use the built-in reload command! "
+                );
+                disablePlugin();
                 return;
             }
 
-            // Check for incompatible plugins
-            this.checkForIncompatibility(manager);
-
             // Set up command handlers
             this.registerCommand(CommandProtocol.NAME, this.commandProtocol);
             this.registerCommand(CommandPacket.NAME, this.commandPacket);
@@ -369,24 +364,6 @@ public class ProtocolLib extends JavaPlugin {
         }
     }
 
-    private void checkForIncompatibility(PluginManager manager) {
-        for (String plugin : ProtocolLibrary.INCOMPATIBLE) {
-            if (manager.getPlugin(plugin) != null) {
-                // Special case for TagAPI and iTag
-                if (plugin.equals("TagAPI")) {
-                    Plugin iTag = manager.getPlugin("iTag");
-                    if (iTag == null || iTag.getDescription().getVersion().startsWith("1.0")) {
-                        logger.severe("Detected incompatible plugin: TagAPI");
-                    }
-                } else {
-                    logger.severe("Detected incompatible plugin: " + plugin);
-                }
-            }
-        }
-    }
-
-    // Plugin authors: Notify me to remove these
-
     // Used to check Minecraft version
     private MinecraftVersion verifyMinecraftVersion() {
         MinecraftVersion minimum = new MinecraftVersion(ProtocolLibrary.MINIMUM_MINECRAFT_VERSION);
@@ -416,50 +393,47 @@ public class ProtocolLib extends JavaPlugin {
         }
     }
 
-    private void checkConflictingVersions() {
-        Pattern ourPlugin = Pattern.compile("ProtocolLib-(.*)\\.jar");
-        MinecraftVersion currentVersion = new MinecraftVersion(this.getDescription().getVersion());
-        MinecraftVersion newestVersion = null;
-
-        // Skip the file that contains this current instance however
-        File loadedFile = this.getFile();
-
+    private void scanForOtherProtocolLibJars() {
         try {
-            // Scan the plugin folder for newer versions of ProtocolLib
-            // The plugin folder isn't always plugins/
+            File loadedFile = this.getFile();
             File pluginFolder = this.getDataFolder().getParentFile();
 
             File[] candidates = pluginFolder.listFiles();
-            if (candidates != null) {
-                for (File candidate : candidates) {
-                    if (candidate.isFile() && !candidate.equals(loadedFile)) {
-                        Matcher match = ourPlugin.matcher(candidate.getName());
-                        if (match.matches()) {
-                            MinecraftVersion version = new MinecraftVersion(match.group(1));
-
-                            if (candidate.length() == 0) {
-                                // Delete and inform the user
-                                logger.info((candidate.delete() ? "Deleted " : "Could not delete ") + candidate);
-                            } else if (newestVersion == null || newestVersion.compareTo(version) < 0) {
-                                newestVersion = version;
-                            }
-                        }
-                    }
-                }
+            if (candidates == null) {
+                return;
             }
-        } catch (Exception e) {
-            // TODO This shows [ProtocolLib] and [ProtocolLibrary] in the message
-            reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_DETECT_CONFLICTING_PLUGINS).error(e));
-        }
 
-        // See if the newest version is actually higher
-        if (newestVersion != null && currentVersion.compareTo(newestVersion) < 0) {
-            // We don't need to set internal classes or instances to NULL - that would break the other loaded plugin
-            this.skipDisable = true;
+            String ourName = loadedFile.getName();
+            List<String> others = new ArrayList<>();
 
-            throw new IllegalStateException(String.format(
-                    "Detected a newer version of ProtocolLib (%s) in plugin folder than the current (%s). Disabling.",
-                    newestVersion.getVersion(), currentVersion.getVersion()));
+            for (File candidate : candidates) {
+                if (!candidate.isFile()) {
+                    continue;
+                }
+
+                String jarName = candidate.getName();
+                if (jarName.equals(ourName)) {
+                    continue;
+                }
+
+                String jarNameLower = candidate.getName().toLowerCase();
+                if (!jarNameLower.startsWith("protocollib") || !jarNameLower.endsWith(".jar")) {
+                    continue;
+                }
+
+                others.add(jarName);
+            }
+
+            if (!others.isEmpty()) {
+                highlyVisibleError(
+                    " Detected multiple ProtocolLib JAR files in the plugin directory! ",
+                    " You should remove all but one of them or there will likely be undesired behavior. ",
+                    " This JAR: " + loadedFile.getName(),
+                    " Other detected JARs: " + String.join(",", others)
+                );
+            }
+        } catch (Exception ex) {
+            ProtocolLogger.debug("Failed to scan plugins directory for ProtocolLib jars", ex);
         }
     }
 
@@ -530,6 +504,17 @@ public class ProtocolLib extends JavaPlugin {
     }
 
     private void checkUpdates() {
+        // Do not run updater if no supported updater is loaded
+        if (this.updater == null) {
+            highlyVisibleError(
+                    " WARNING ",
+                    " ProtocolLib is unable to check for updates. ",
+                    " You are likely not using a supported version (Such as CraftBukkit). "
+            );
+            ProtocolLibrary.disableUpdates();
+            return;
+        }
+
         // Ignore milliseconds - it's pointless
         long currentTime = System.currentTimeMillis() / MILLI_PER_SECOND;
 
@@ -561,15 +546,15 @@ public class ProtocolLib extends JavaPlugin {
 
         // that reloading the server might break ProtocolLib / plugins depending on it
         if (Util.isCurrentlyReloading()) {
-            logger.severe("╔══════════════════════════════════════════════════════════════════╗");
-            logger.severe("║                               WARNING                            ║");
-            logger.severe("║     RELOADING THE SERVER WHILE PROTOCOL LIB IS ENABLED MIGHT     ║");
-            logger.severe("║                    LEAD TO UNEXPECTED ERRORS!                    ║");
-            logger.severe("║                                                                  ║");
-            logger.severe("║     Consider to cleanly restart your server if you encounter     ║");
-            logger.severe("║    any issues related to Protocol Lib before opening an issue    ║");
-            logger.severe("║                            on GitHub!                            ║");
-            logger.severe("╚══════════════════════════════════════════════════════════════════╝");
+            highlyVisibleError(
+                " WARNING ",
+                " RELOADING THE SERVER WHILE PROTOCOLLIB IS ENABLED MIGHT ",
+                " LEAD TO UNEXPECTED ERRORS! ",
+                " ",
+                " Consider cleanly restarting your server if you encounter ",
+                " any issues related to ProtocolLib before opening an issue ",
+                " on GitHub! "
+            );
         }
 
         // Clean up

src/main/java/com/comphenix/protocol/ProtocolLibrary.java

@@ -17,9 +17,7 @@ package com.comphenix.protocol;
 import com.comphenix.protocol.error.BasicErrorReporter;
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.scheduler.ProtocolScheduler;
-import com.comphenix.protocol.utility.MinecraftVersion;
-import java.util.List;
-import com.google.common.collect.ImmutableList;
+
 import org.apache.commons.lang.Validate;
 import org.bukkit.plugin.Plugin;
 
@@ -37,17 +35,12 @@ public class ProtocolLibrary {
     /**
      * The maximum version ProtocolLib has been tested with.
      */
-    public static final String MAXIMUM_MINECRAFT_VERSION = "1.20.1";
+    public static final String MAXIMUM_MINECRAFT_VERSION = "1.21.8";
 
     /**
-     * The date (with ISO 8601 or YYYY-MM-DD) when the most recent version (1.20.1) was released.
+     * The date (with ISO 8601 or YYYY-MM-DD) when the most recent version (1.21.8) was released.
      */
-    public static final String MINECRAFT_LAST_RELEASE_DATE = "2023-06-12";
-
-    /**
-     * Plugins that are currently incompatible with ProtocolLib.
-     */
-    public static final List<String> INCOMPATIBLE = ImmutableList.of("TagAPI");
+    public static final String MINECRAFT_LAST_RELEASE_DATE = "2025-07-17";
 
     private static Plugin plugin;
     private static ProtocolConfig config;

src/main/java/com/comphenix/protocol/async/AsyncFilterManager.java

@@ -17,12 +17,6 @@
 
 package com.comphenix.protocol.async;
 
-import java.util.Collection;
-import java.util.List;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.atomic.AtomicInteger;
-
 import com.comphenix.protocol.AsynchronousManager;
 import com.comphenix.protocol.PacketStream;
 import com.comphenix.protocol.PacketType;
@@ -31,16 +25,21 @@ import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.events.ListeningWhitelist;
 import com.comphenix.protocol.events.PacketEvent;
 import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.injector.PrioritizedListener;
-import com.comphenix.protocol.injector.SortedPacketListenerList;
+import com.comphenix.protocol.injector.collection.InboundPacketListenerSet;
+import com.comphenix.protocol.injector.collection.OutboundPacketListenerSet;
 import com.comphenix.protocol.scheduler.ProtocolScheduler;
 import com.google.common.base.Objects;
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
-
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.Plugin;
 
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicInteger;
+
 /**
  * Represents a filter manager for asynchronous packets.
  * <p>
@@ -50,8 +49,8 @@ import org.bukkit.plugin.Plugin;
  */
 public class AsyncFilterManager implements AsynchronousManager {
 
-    private SortedPacketListenerList serverTimeoutListeners;
-    private SortedPacketListenerList clientTimeoutListeners;
+    private OutboundPacketListenerSet outboundTimeoutListeners;
+    private InboundPacketListenerSet inboundTimeoutListeners;
     private Set<PacketListener> timeoutListeners;
     
     private PacketProcessingQueue serverProcessingQueue;
@@ -84,11 +83,11 @@ public class AsyncFilterManager implements AsynchronousManager {
      */
     public AsyncFilterManager(ErrorReporter reporter, ProtocolScheduler scheduler) {
         // Initialize timeout listeners
-        this.serverTimeoutListeners = new SortedPacketListenerList();
-        this.clientTimeoutListeners = new SortedPacketListenerList();
+        this.outboundTimeoutListeners = new OutboundPacketListenerSet(null, reporter);
+        this.inboundTimeoutListeners = new InboundPacketListenerSet(null, reporter);
         this.timeoutListeners = ConcurrentHashMap.newKeySet();
 
-        this.playerSendingHandler = new PlayerSendingHandler(reporter, serverTimeoutListeners, clientTimeoutListeners);
+        this.playerSendingHandler = new PlayerSendingHandler(outboundTimeoutListeners, inboundTimeoutListeners);
         this.serverProcessingQueue = new PacketProcessingQueue(playerSendingHandler);
         this.clientProcessingQueue = new PacketProcessingQueue(playerSendingHandler);
         this.playerSendingHandler.initializeScheduler();
@@ -130,9 +129,9 @@ public class AsyncFilterManager implements AsynchronousManager {
         ListeningWhitelist receiving = listener.getReceivingWhitelist();
         
         if (!ListeningWhitelist.isEmpty(sending))
-            serverTimeoutListeners.addListener(listener, sending);
+            outboundTimeoutListeners.addListener(listener);
         if (!ListeningWhitelist.isEmpty(receiving))
-            serverTimeoutListeners.addListener(listener, receiving);
+            inboundTimeoutListeners.addListener(listener);
     }
 
     @Override
@@ -145,9 +144,8 @@ public class AsyncFilterManager implements AsynchronousManager {
         ImmutableSet.Builder<PacketListener> builder = ImmutableSet.builder();
         
         // Add every asynchronous packet listener
-        for (PrioritizedListener<AsyncListenerHandler> handler :
-                Iterables.concat(serverProcessingQueue.values(), clientProcessingQueue.values())) {
-            builder.add(handler.getListener().getAsyncListener());
+        for (AsyncListenerHandler handler : Iterables.concat(serverProcessingQueue.values(), clientProcessingQueue.values())) {
+            builder.add(handler.getAsyncListener());
         }
         return builder.build();
     }
@@ -203,13 +201,9 @@ public class AsyncFilterManager implements AsynchronousManager {
         if (listener == null)
             throw new IllegalArgumentException("listener cannot be NULL.");
         
-        ListeningWhitelist sending = listener.getSendingWhitelist();
-        ListeningWhitelist receiving = listener.getReceivingWhitelist();
-        
-        // Do it in the opposite order
-        if (serverTimeoutListeners.removeListener(listener, sending).size() > 0 ||
-            clientTimeoutListeners.removeListener(listener, receiving).size() > 0) {
-            timeoutListeners.remove(listener);
+        if (timeoutListeners.remove(listener)) {
+            outboundTimeoutListeners.removeListener(listener);
+            inboundTimeoutListeners.removeListener(listener);
         }
     }
     
@@ -233,9 +227,9 @@ public class AsyncFilterManager implements AsynchronousManager {
             return null;
         
         for (PacketType type : search.getTypes()) {
-            for (PrioritizedListener<AsyncListenerHandler> element : queue.getListener(type)) {
-                if (element.getListener().getAsyncListener() == target) {
-                    return element.getListener();
+            for (AsyncListenerHandler element : queue.get(type)) {
+                if (element.getAsyncListener() == target) {
+                    return element;
                 }
             }
         }
@@ -290,12 +284,12 @@ public class AsyncFilterManager implements AsynchronousManager {
     }
     
     private void unregisterAsyncHandlers(PacketProcessingQueue processingQueue, Plugin plugin) {
-        
+
         // Iterate through every packet listener
-        for (PrioritizedListener<AsyncListenerHandler> listener : processingQueue.values()) {
+        for (AsyncListenerHandler listener : ImmutableList.copyOf(processingQueue.values())) {
             // Remove the listener
-            if (Objects.equal(listener.getListener().getPlugin(), plugin)) {
-                unregisterAsyncHandler(listener.getListener());
+            if (Objects.equal(listener.getPlugin(), plugin)) {
+                unregisterAsyncHandler(listener);
             }
         }
     }
@@ -346,8 +340,7 @@ public class AsyncFilterManager implements AsynchronousManager {
     
     @Override
     public boolean hasAsynchronousListeners(PacketEvent packet) {
-         Collection<?> list = getProcessingQueue(packet).getListener(packet.getPacketType());
-         return list != null && list.size() > 0;
+         return getProcessingQueue(packet).contains(packet.getPacketType());
     }
     
     /**
@@ -388,8 +381,8 @@ public class AsyncFilterManager implements AsynchronousManager {
         playerSendingHandler.cleanupAll();
         timeoutListeners.clear();
         
-        serverTimeoutListeners = null;
-        clientTimeoutListeners = null;
+        outboundTimeoutListeners = null;
+        inboundTimeoutListeners = null;
     }
     
     @Override
@@ -413,6 +406,23 @@ public class AsyncFilterManager implements AsynchronousManager {
         
         // Only send if the packet is ready
         if (marker.decrementProcessingDelay() == 0) {
+
+            // Now, get the next non-cancelled listener
+            if (!marker.hasExpired()) {
+                for (; marker.getListenerTraversal().hasNext(); ) {
+                    AsyncListenerHandler handler = marker.getListenerTraversal().next();
+
+                    if (!handler.isCancelled()) {
+                        marker.incrementProcessingDelay();
+                        handler.enqueuePacket(packet);
+                        return;
+                    }
+                }
+            }
+            
+            // There are no more listeners - queue the packet for transmission
+            signalFreeProcessingSlot(packet, onMainThread);
+
             PacketSendingQueue queue = getSendingQueue(packet, false);
             
             // No need to create a new queue if the player has logged out
@@ -450,11 +460,18 @@ public class AsyncFilterManager implements AsynchronousManager {
     }
     
     /**
-     * Signal that a packet has finished processing.
+     * Signal that a packet has finished processing. Tries to process further packets
+     * if a processing slot is still free.
      * @param packet - packet to signal.
+     * @param onMainThread whether or not this method was run by the main thread.
      */
-    public void signalFreeProcessingSlot(PacketEvent packet) {
-        getProcessingQueue(packet).signalProcessingDone();
+    public void signalFreeProcessingSlot(PacketEvent packet, boolean onMainThread) {
+        PacketProcessingQueue queue = getProcessingQueue(packet);
+        // mark slot as done
+        queue.signalProcessingDone();
+
+        // start processing next slot if possible
+        queue.signalBeginProcessing(onMainThread);
     }
     
     /**

src/main/java/com/comphenix/protocol/async/AsyncListenerHandler.java

@@ -24,6 +24,8 @@ import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 
+import org.bukkit.plugin.Plugin;
+
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.error.Report;
 import com.comphenix.protocol.error.ReportType;
@@ -32,14 +34,11 @@ import com.comphenix.protocol.events.PacketAdapter;
 import com.comphenix.protocol.events.PacketEvent;
 import com.comphenix.protocol.events.PacketListener;
 import com.comphenix.protocol.scheduler.Task;
-import com.comphenix.protocol.timing.TimedListenerManager;
-import com.comphenix.protocol.timing.TimedListenerManager.ListenerType;
-import com.comphenix.protocol.timing.TimedTracker;
+import com.comphenix.protocol.timing.TimingListenerType;
+import com.comphenix.protocol.timing.TimingTrackerManager;
 import com.google.common.base.Function;
 import com.google.common.base.Joiner;
 
-import org.bukkit.plugin.Plugin;
-
 /**
  * Represents a handler for an asynchronous event.
  * <p>
@@ -100,9 +99,6 @@ public class AsyncListenerHandler {
     // Warn plugins that the async listener handler must be started
     private Task warningTask;
     
-    // Timing manager
-    private TimedListenerManager timedManager = TimedListenerManager.getInstance();
-    
     /**
      * Construct a manager for an asynchronous packet handler.
      * @param mainThread - the main game thread.
@@ -326,9 +322,9 @@ public class AsyncListenerHandler {
         
         scheduleAsync(() -> delegateCopy.apply(listenerLoop));
     }
-    
+
     private void scheduleAsync(Runnable runnable) {
-        listener.getPlugin().getServer().getScheduler().runTaskAsynchronously(listener.getPlugin(), runnable);
+        filterManager.getScheduler().runTaskAsync(runnable);
     }
     
     /**
@@ -600,53 +596,22 @@ public class AsyncListenerHandler {
                 marker.setListenerHandler(this);
                 marker.setWorkerID(workerID);
                 
-                // We're not THAT worried about performance here
-                if (timedManager.isTiming()) {
-                    // Retrieve the tracker to use
-                    TimedTracker tracker = timedManager.getTracker(listener,
-                        packet.isServerPacket() ? ListenerType.ASYNC_SERVER_SIDE : ListenerType.ASYNC_CLIENT_SIDE);
-                    long token = tracker.beginTracking();
-                    
-                    if (packet.isServerPacket())
-                        listener.onPacketSending(packet);
-                    else
-                        listener.onPacketReceiving(packet);
-                    
-                    // And we're done
-                    tracker.endTracking(token, packet.getPacketType());
-                    
-                } else {
-                    if (packet.isServerPacket())
-                        listener.onPacketSending(packet);
-                    else
-                        listener.onPacketReceiving(packet);
-                }
+                TimingTrackerManager.get(listener, packet.isServerPacket() ? TimingListenerType.ASYNC_OUTBOUND : TimingListenerType.ASYNC_INBOUND)
+                        .track(packet.getPacketType(), () -> {
+                            if (packet.isServerPacket())
+                                listener.onPacketSending(packet);
+                            else
+                                listener.onPacketReceiving(packet);
+                        });
             }
             
         } catch (OutOfMemoryError e) {
             throw e;
-        } catch (ThreadDeath e) {
-            throw e;
         } catch (Throwable e) {
             // Minecraft doesn't want your Exception.
             filterManager.getErrorReporter().reportMinimal(listener.getPlugin(), methodName, e);
         }
         
-        // Now, get the next non-cancelled listener
-        if (!marker.hasExpired()) {
-            for (; marker.getListenerTraversal().hasNext(); ) {
-                AsyncListenerHandler handler = marker.getListenerTraversal().next().getListener();
-                
-                if (!handler.isCancelled()) {
-                    handler.enqueuePacket(packet);
-                    return;
-                }
-            }
-        }
-        
-        // There are no more listeners - queue the packet for transmission
-        filterManager.signalFreeProcessingSlot(packet);
-        
         // Note that listeners can opt to delay the packet transmission
         filterManager.signalPacketTransmission(packet);
     }

src/main/java/com/comphenix/protocol/async/AsyncMarker.java

@@ -31,7 +31,6 @@ import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.ProtocolLogger;
 import com.comphenix.protocol.events.NetworkMarker;
 import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.injector.PrioritizedListener;
 import com.comphenix.protocol.reflect.FieldAccessException;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.utility.MinecraftReflection;
@@ -70,7 +69,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
     /**
      * Current list of async packet listeners.
      */
-    private transient Iterator<PrioritizedListener<AsyncListenerHandler>> listenerTraversal;
+    private transient Iterator<AsyncListenerHandler> listenerTraversal;
 
     // Timeout handling
     private long initialTime;
@@ -366,7 +365,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
      * Retrieve iterator for the next listener in line.
      * @return Next async packet listener iterator.
      */
-    Iterator<PrioritizedListener<AsyncListenerHandler>> getListenerTraversal() {
+    Iterator<AsyncListenerHandler> getListenerTraversal() {
         return listenerTraversal;
     }
 
@@ -374,7 +373,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
      * Set the iterator for the next listener.
      * @param listenerTraversal - the new async packet listener iterator.
      */
-    void setListenerTraversal(Iterator<PrioritizedListener<AsyncListenerHandler>> listenerTraversal) {
+    void setListenerTraversal(Iterator<AsyncListenerHandler> listenerTraversal) {
         this.listenerTraversal = listenerTraversal;
     }
 

src/main/java/com/comphenix/protocol/async/PacketProcessingQueue.java

@@ -17,18 +17,20 @@
 
 package com.comphenix.protocol.async;
 
-import java.util.Collection;
 import java.util.Iterator;
+import java.util.List;
 import java.util.PriorityQueue;
 import java.util.Queue;
 import java.util.concurrent.Semaphore;
 
+import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.concurrency.AbstractConcurrentListenerMultimap;
+import com.comphenix.protocol.concurrent.PacketTypeMultiMap;
 import com.comphenix.protocol.error.Report;
 import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.ListeningWhitelist;
 import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.injector.PrioritizedListener;
+import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.MinMaxPriorityQueue;
 
 
@@ -37,7 +39,7 @@ import com.google.common.collect.MinMaxPriorityQueue;
  * 
  * @author Kristian
  */
-class PacketProcessingQueue extends AbstractConcurrentListenerMultimap<AsyncListenerHandler> {
+class PacketProcessingQueue {
     public static final ReportType REPORT_GUAVA_CORRUPT_MISSING = 
             new ReportType("Guava is either missing or corrupt. Reverting to PriorityQueue.");
 
@@ -66,6 +68,16 @@ class PacketProcessingQueue extends AbstractConcurrentListenerMultimap<AsyncList
     // Packets for sending
     private PlayerSendingHandler sendingHandler;
     
+    private final PacketTypeMultiMap<AsyncListenerHandler> map = new PacketTypeMultiMap<>();
+
+    public void addListener(AsyncListenerHandler listener, ListeningWhitelist whitelist) {
+        map.put(whitelist, listener);
+    }
+
+    public List<PacketType> removeListener(AsyncListenerHandler listener, ListeningWhitelist whitelist) {
+        return map.remove(whitelist, listener);
+    }
+
     public PacketProcessingQueue(PlayerSendingHandler sendingHandler) {
         this(sendingHandler, INITIAL_CAPACITY, DEFAULT_QUEUE_LIMIT, DEFAULT_MAXIMUM_CONCURRENCY);
     }
@@ -131,17 +143,17 @@ class PacketProcessingQueue extends AbstractConcurrentListenerMultimap<AsyncList
             if (holder != null) {
                 PacketEvent packet = holder.getEvent();
                 AsyncMarker marker = packet.getAsyncMarker();
-                Collection<PrioritizedListener<AsyncListenerHandler>> list = getListener(packet.getPacketType());
+                Iterable<AsyncListenerHandler> list = map.get(packet.getPacketType());
                 
                 marker.incrementProcessingDelay();
                 
                 // Yes, removing the marker will cause the chain to stop
                 if (list != null) {
-                    Iterator<PrioritizedListener<AsyncListenerHandler>> iterator = list.iterator();
+                    Iterator<AsyncListenerHandler> iterator = list.iterator();
                     
                     if (iterator.hasNext()) {
                         marker.setListenerTraversal(iterator);
-                        iterator.next().getListener().enqueuePacket(packet);
+                        iterator.next().enqueuePacket(packet);
                         continue;
                     }
                 }
@@ -178,17 +190,31 @@ class PacketProcessingQueue extends AbstractConcurrentListenerMultimap<AsyncList
     public int getMaximumConcurrency() {
         return maximumConcurrency;
     }
+
+    public boolean contains(PacketType packetType) {
+        return map.contains(packetType);
+    }
+
+    public Iterable<AsyncListenerHandler> get(PacketType packetType) {
+        return map.get(packetType);
+    }
+
+    public ImmutableSet<PacketType> keySet() {
+        return map.getPacketTypes();
+    }
+
+    public Iterable<AsyncListenerHandler> values() {
+        return map.values();
+    }
     
     public void cleanupAll() {
         // Cancel all the threads and every listener
-        for (PrioritizedListener<AsyncListenerHandler> handler : values()) {
-            if (handler != null) {
-                handler.getListener().cancel();
-            }
+        for (AsyncListenerHandler handler : map.values()) {
+            handler.cancel();
         }
         
         // Remove the rest, just in case
-        clearListeners();
+        map.clear();
         
         // Remove every packet in the queue
         processingQueue.clear();

src/main/java/com/comphenix/protocol/async/PlayerSendingHandler.java

@@ -24,27 +24,26 @@ import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ThreadFactory;
 
+import org.bukkit.entity.Player;
+
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.concurrency.ConcurrentPlayerMap;
-import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.injector.SortedPacketListenerList;
+import com.comphenix.protocol.injector.collection.InboundPacketListenerSet;
+import com.comphenix.protocol.injector.collection.OutboundPacketListenerSet;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 
-import org.bukkit.entity.Player;
-
 /**
  * Contains every sending queue for every player.
  * 
  * @author Kristian
  */
 class PlayerSendingHandler {
-    private final ErrorReporter reporter;
     private final ConcurrentMap<Player, QueueContainer> playerSendingQueues;
     
     // Timeout listeners
-    private final SortedPacketListenerList serverTimeoutListeners;
-    private final SortedPacketListenerList clientTimeoutListeners;
+    private final OutboundPacketListenerSet outboundTimeoutListeners;
+    private final InboundPacketListenerSet inboundTimeoutListeners;
     
     // Asynchronous packet sending
     private Executor asynchronousSender;
@@ -58,37 +57,37 @@ class PlayerSendingHandler {
      * @author Kristian
      */
     private class QueueContainer {
-        private final PacketSendingQueue serverQueue;
-        private final PacketSendingQueue clientQueue;
+        private final PacketSendingQueue outboundQueue;
+        private final PacketSendingQueue inboundQueue;
         
         public QueueContainer() {
             // Server packets can be sent concurrently
-            serverQueue = new PacketSendingQueue(false, asynchronousSender) {
+            outboundQueue = new PacketSendingQueue(false, asynchronousSender) {
                 @Override
                 protected void onPacketTimeout(PacketEvent event) {
                     if (!cleaningUp) {
-                        serverTimeoutListeners.invokePacketSending(reporter, event);
+                        outboundTimeoutListeners.invoke(event);
                     }
                 }
             };
             
             // Client packets must be synchronized
-            clientQueue = new PacketSendingQueue(true, asynchronousSender) {
+            inboundQueue = new PacketSendingQueue(true, asynchronousSender) {
                 @Override
                 protected void onPacketTimeout(PacketEvent event) {
                     if (!cleaningUp) {
-                        clientTimeoutListeners.invokePacketSending(reporter, event);
+                        inboundTimeoutListeners.invoke(event);
                     }
                 }
             };
         }
 
-        public PacketSendingQueue getServerQueue() {
-            return serverQueue;
+        public PacketSendingQueue getOutboundQueue() {
+            return outboundQueue;
         }
 
-        public PacketSendingQueue getClientQueue() {
-            return clientQueue;
+        public PacketSendingQueue getInboundQueue() {
+            return inboundQueue;
         }
     }
     
@@ -98,12 +97,9 @@ class PlayerSendingHandler {
      * @param serverTimeoutListeners - set of server timeout listeners.
      * @param clientTimeoutListeners - set of client timeout listeners.
      */
-    public PlayerSendingHandler(ErrorReporter reporter, 
-            SortedPacketListenerList serverTimeoutListeners, SortedPacketListenerList clientTimeoutListeners) {
-        
-        this.reporter = reporter;
-        this.serverTimeoutListeners = serverTimeoutListeners;
-        this.clientTimeoutListeners = clientTimeoutListeners;
+    public PlayerSendingHandler(OutboundPacketListenerSet serverTimeoutListeners, InboundPacketListenerSet clientTimeoutListeners) {
+        this.outboundTimeoutListeners = serverTimeoutListeners;
+        this.inboundTimeoutListeners = clientTimeoutListeners;
         
         // Initialize storage of queues
         this.playerSendingQueues = ConcurrentPlayerMap.usingAddress();
@@ -154,7 +150,7 @@ class PlayerSendingHandler {
         
         // Check for NULL again
         if (queues != null)
-            return packet.isServerPacket() ? queues.getServerQueue() : queues.getClientQueue();
+            return packet.isServerPacket() ? queues.getOutboundQueue() : queues.getInboundQueue();
         else
             return null;
     }
@@ -165,8 +161,8 @@ class PlayerSendingHandler {
     public void sendAllPackets() {
         if (!cleaningUp) {
             for (QueueContainer queues : playerSendingQueues.values()) {
-                queues.getClientQueue().cleanupAll();
-                queues.getServerQueue().cleanupAll();
+                queues.getInboundQueue().cleanupAll();
+                queues.getOutboundQueue().cleanupAll();
             }
         }
     }
@@ -179,7 +175,7 @@ class PlayerSendingHandler {
     public void sendServerPackets(List<PacketType> types, boolean synchronusOK) {
         if (!cleaningUp) {
             for (QueueContainer queue : playerSendingQueues.values()) {
-                queue.getServerQueue().signalPacketUpdate(types, synchronusOK);
+                queue.getOutboundQueue().signalPacketUpdate(types, synchronusOK);
             }
         }
     }
@@ -191,7 +187,7 @@ class PlayerSendingHandler {
     public void sendClientPackets(List<PacketType> types, boolean synchronusOK) {
         if (!cleaningUp) {
             for (QueueContainer queue : playerSendingQueues.values()) {
-                queue.getClientQueue().signalPacketUpdate(types, synchronusOK);
+                queue.getInboundQueue().signalPacketUpdate(types, synchronusOK);
             }
         }
     }
@@ -202,7 +198,7 @@ class PlayerSendingHandler {
      */
     public void trySendServerPackets(boolean onMainThread) {
         for (QueueContainer queue : playerSendingQueues.values()) {
-            queue.getServerQueue().trySendPackets(onMainThread);
+            queue.getOutboundQueue().trySendPackets(onMainThread);
         }
     }
     
@@ -212,7 +208,7 @@ class PlayerSendingHandler {
      */
     public void trySendClientPackets(boolean onMainThread) {
         for (QueueContainer queue : playerSendingQueues.values()) {
-            queue.getClientQueue().trySendPackets(onMainThread);
+            queue.getInboundQueue().trySendPackets(onMainThread);
         }
     }
     
@@ -224,7 +220,7 @@ class PlayerSendingHandler {
         List<PacketSendingQueue> result = new ArrayList<>();
         
         for (QueueContainer queue : playerSendingQueues.values())
-            result.add(queue.getServerQueue());
+            result.add(queue.getOutboundQueue());
         return result;
     }
     
@@ -236,7 +232,7 @@ class PlayerSendingHandler {
         List<PacketSendingQueue> result = new ArrayList<>();
         
         for (QueueContainer queue : playerSendingQueues.values())
-            result.add(queue.getClientQueue());
+            result.add(queue.getInboundQueue());
         return result;
     }
     

src/main/java/com/comphenix/protocol/concurrency/AbstractConcurrentListenerMultimap.java

@@ -1,145 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  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; either version 2 of
- *  the License, or (at your option) any later version.
- *
- *  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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.concurrency;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.events.ListeningWhitelist;
-import com.comphenix.protocol.injector.PrioritizedListener;
-import com.google.common.collect.Iterables;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-
-/**
- * A thread-safe implementation of a listener multimap.
- *
- * @author Kristian
- */
-public abstract class AbstractConcurrentListenerMultimap<T> {
-
-    // The core of our map
-    private final ConcurrentMap<PacketType, SortedCopyOnWriteArray<PrioritizedListener<T>>> mapListeners;
-
-    protected AbstractConcurrentListenerMultimap() {
-        this.mapListeners = new ConcurrentHashMap<>();
-    }
-
-    /**
-     * Adds a listener to its requested list of packet receivers.
-     *
-     * @param listener  - listener with a list of packets to receive notifications for.
-     * @param whitelist - the packet whitelist to use.
-     */
-    public void addListener(T listener, ListeningWhitelist whitelist) {
-        final PrioritizedListener<T> prioritized = new PrioritizedListener<>(listener, whitelist.getPriority());
-        for (PacketType type : whitelist.getTypes()) {
-            this.addListener(type, prioritized);
-        }
-    }
-
-    // Add the listener to a specific packet notification list
-    private void addListener(PacketType type, PrioritizedListener<T> listener) {
-        SortedCopyOnWriteArray<PrioritizedListener<T>> list = this.mapListeners.get(type);
-
-        // We don't want to create this for every lookup
-        if (list == null) {
-            // It would be nice if we could use a PriorityBlockingQueue, but it doesn't preserve iterator order,
-            // which is an essential feature for our purposes.
-            final SortedCopyOnWriteArray<PrioritizedListener<T>> value = new SortedCopyOnWriteArray<>();
-
-            // We may end up creating multiple multisets, but we'll agree on which to use
-            list = this.mapListeners.putIfAbsent(type, value);
-
-            if (list == null) {
-                list = value;
-            }
-        }
-
-        // Thread safe
-        list.add(listener);
-    }
-
-    /**
-     * Removes the given listener from the packet event list.
-     *
-     * @param listener  - listener to remove.
-     * @param whitelist - the packet whitelist that was used.
-     * @return Every packet ID that was removed due to no listeners.
-     */
-    public List<PacketType> removeListener(T listener, ListeningWhitelist whitelist) {
-        List<PacketType> removedPackets = new ArrayList<>();
-
-        // Again, not terribly efficient. But adding or removing listeners should be a rare event.
-        for (PacketType type : whitelist.getTypes()) {
-            SortedCopyOnWriteArray<PrioritizedListener<T>> list = this.mapListeners.get(type);
-
-            if(list == null || list.isEmpty()) continue;
-
-            // Remove any listeners
-            // Remove this listener. Note that priority is generally ignored.
-            list.remove(new PrioritizedListener<T>(listener, whitelist.getPriority()));
-
-            if (list.isEmpty()) {
-                this.mapListeners.remove(type);
-                removedPackets.add(type);
-            }
-            // Move on to the next
-        }
-        return removedPackets;
-    }
-
-    /**
-     * Retrieve the registered listeners, in order from the lowest to the highest priority.
-     * <p>
-     * The returned list is thread-safe and doesn't require synchronization.
-     *
-     * @param type - packet type.
-     * @return Registered listeners.
-     */
-    public Collection<PrioritizedListener<T>> getListener(PacketType type) {
-        return this.mapListeners.get(type);
-    }
-
-    /**
-     * Retrieve every listener.
-     *
-     * @return Every listener.
-     */
-    public Iterable<PrioritizedListener<T>> values() {
-        return Iterables.concat(this.mapListeners.values());
-    }
-
-    /**
-     * Retrieve every registered packet type:
-     *
-     * @return Registered packet type.
-     */
-    public Set<PacketType> keySet() {
-        return this.mapListeners.keySet();
-    }
-
-    /**
-     * Remove all packet listeners.
-     */
-    protected void clearListeners() {
-        this.mapListeners.clear();
-    }
-}

src/main/java/com/comphenix/protocol/concurrency/AbstractIntervalTree.java

@@ -1,494 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  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; either version 2 of
- *  the License, or (at your option) any later version.
- *
- *  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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.concurrency;
-
-import com.google.common.base.Objects;
-import com.google.common.collect.Range;
-
-import java.util.HashSet;
-import java.util.Map;
-import java.util.NavigableMap;
-import java.util.Set;
-import java.util.TreeMap;
-
-/**
- * Represents a generic store of intervals and associated values. No two intervals
- * can overlap in this representation.
- * <p>
- * Note that this implementation is not thread safe.
- * 
- * @author Kristian
- *
- * @param <TKey> - type of the key. Must implement Comparable.
- * @param <TValue> - type of the value to associate.
- */
-public abstract class AbstractIntervalTree<TKey extends Comparable<TKey>, TValue> {
-    
-    protected enum State {
-        OPEN,
-        CLOSE,
-        BOTH
-    }
-    
-    /**
-     * Represents a range and a value in this interval tree.
-     */
-    public class Entry implements Map.Entry<Range<TKey>, TValue> {
-        private final EndPoint left;
-        private final EndPoint right;
-
-        Entry(EndPoint left, EndPoint right) {
-            if (left == null)
-                throw new IllegalAccessError("left cannot be NUll");
-            if (right == null)
-                throw new IllegalAccessError("right cannot be NUll");
-            if (left.key.compareTo(right.key) > 0)
-                throw new IllegalArgumentException(
-                        "Left key (" + left.key + ") cannot be greater than the right key (" + right.key + ")");
-            
-            this.left = left;
-            this.right = right;
-        }
-
-        @Override
-        public Range<TKey> getKey() {
-            return Range.closed(left.key, right.key);
-        }
-
-        @Override
-        public TValue getValue() {
-            return left.value;
-        }
-
-        @Override
-        public TValue setValue(TValue value) {
-            TValue old = left.value;
-            
-            // Set both end points
-            left.value = value;
-            right.value = value;
-            return old;
-        }
-        
-        @SuppressWarnings("rawtypes")
-        @Override
-        public boolean equals(Object obj) {
-            // Quick equality check
-            if (obj == this) {
-                return true;
-            } else if (obj instanceof AbstractIntervalTree.Entry) {
-                return Objects.equal(left.key, ((AbstractIntervalTree.Entry) obj).left.key) &&
-                       Objects.equal(right.key, ((AbstractIntervalTree.Entry) obj).right.key) &&
-                       Objects.equal(left.value, ((AbstractIntervalTree.Entry) obj).left.value);
-            } else {
-                return false;
-            }
-        }
-        
-        @Override
-        public int hashCode() {
-            return Objects.hashCode(left.key, right.key, left.value);
-        }
-        
-        @Override
-        public String toString() {
-            return String.format("Value %s at [%s, %s]", left.value, left.key, right.key);
-        }
-    }
-    
-    /**
-     * Represents a single end point (open, close or both) of a range.
-     */
-    protected class EndPoint {
-        
-        // Whether or not the end-point is opening a range, closing a range or both.
-        public State state;
-        
-        // The value this range contains
-        public TValue value;
-        
-        // The key of this end point
-        public TKey key;
-
-        public EndPoint(State state, TKey key, TValue value) {
-            this.state = state;
-            this.key = key;
-            this.value = value;
-        }
-    }
-    
-    // To quickly look up ranges we'll index them by endpoints
-    protected NavigableMap<TKey, EndPoint> bounds = new TreeMap<>();
-    
-    /**
-     * Removes every interval that intersects with the given range.
-     * @param lowerBound - lowest value to remove.
-     * @param upperBound - highest value to remove.
-     * @return Intervals that were removed
-     */
-    public Set<Entry> remove(TKey lowerBound, TKey upperBound) {
-        return remove(lowerBound, upperBound, false);
-    }
-    
-    /**
-     * Removes every interval that intersects with the given range.
-     * @param lowerBound - lowest value to remove.
-     * @param upperBound - highest value to remove.
-     * @param preserveDifference - whether or not to preserve the intervals that are partially outside.
-     * @return Intervals that were removed
-     */
-    public Set<Entry> remove(TKey lowerBound, TKey upperBound, boolean preserveDifference) {
-        checkBounds(lowerBound, upperBound);
-        NavigableMap<TKey, EndPoint> range = bounds.subMap(lowerBound, true, upperBound, true);
-        
-        EndPoint first = getNextEndPoint(lowerBound, true);
-        EndPoint last = getPreviousEndPoint(upperBound, true);
-        
-        // Used while resizing intervals
-        EndPoint previous = null;
-        EndPoint next = null;
-        
-        Set<Entry> resized = new HashSet<>();
-        Set<Entry> removed = new HashSet<>();
-        
-        // Remove the previous element too. A close end-point must be preceded by an OPEN end-point.
-        if (first != null && first.state == State.CLOSE) {
-            previous = getPreviousEndPoint(first.key, false);
-            
-            // Add the interval back
-            if (previous != null) {
-                removed.add(getEntry(previous, first));
-            }
-        }
-        
-        // Get the closing element too.
-        if (last != null && last.state == State.OPEN) {
-            next = getNextEndPoint(last.key, false);
-        
-            if (next != null) {
-                removed.add(getEntry(last, next));
-            }
-        }
-        
-        // Now remove both ranges
-        removeEntrySafely(previous, first);
-        removeEntrySafely(last, next);
-        
-        // Add new resized intervals
-        if (preserveDifference) {
-            if (previous != null) {
-                resized.add(putUnsafe(previous.key, decrementKey(lowerBound), previous.value));
-            }
-            if (next != null) {
-                resized.add(putUnsafe(incrementKey(upperBound), next.key, next.value));
-            }
-        }
-        
-        // Get the removed entries too
-        getEntries(removed, range);
-        invokeEntryRemoved(removed);
-        
-        if (preserveDifference) {
-            invokeEntryAdded(resized);
-        }
-        
-        // Remove the range as well
-        range.clear();
-        return removed;
-    }
-    
-    /**
-     * Retrieve the entry from a given set of end points.
-     * @param left - leftmost end point.
-     * @param right - rightmost end point.
-     * @return The associated entry.
-     */
-    protected Entry getEntry(EndPoint left, EndPoint right) {
-        if (left == null)
-            throw new IllegalArgumentException("left endpoint cannot be NULL.");
-        if (right == null)
-            throw new IllegalArgumentException("right endpoint cannot be NULL.");
-        
-        // Make sure the order is correct
-        if (right.key.compareTo(left.key) < 0) {
-            return getEntry(right, left);
-        } else {
-            return new Entry(left, right);
-        }
-    }
-    
-    private void removeEntrySafely(EndPoint left, EndPoint right) {
-        if (left != null && right != null) {
-            bounds.remove(left.key);
-            bounds.remove(right.key);
-        }
-    }
-    
-    // Adds a given end point
-    protected EndPoint addEndPoint(TKey key, TValue value, State state) {
-        EndPoint endPoint = bounds.get(key);
-        
-        if (endPoint != null) {
-            endPoint.state = State.BOTH;
-        } else {
-            endPoint = new EndPoint(state, key, value);
-            bounds.put(key, endPoint);
-        }
-        return endPoint;
-    }
-    
-    /**
-     * Associates a given interval of keys with a certain value. Any previous
-     * association will be overwritten in the given interval.
-     * <p>
-     * Overlapping intervals are not permitted. A key can only be associated with a single value.
-     * 
-     * @param lowerBound - the minimum key (inclusive).
-     * @param upperBound - the maximum key (inclusive).
-     * @param value - the value, or NULL to reset this range.
-     */
-    public void put(TKey lowerBound, TKey upperBound, TValue value) {
-        // While we don't permit overlapping intervals, we'll still allow overwriting existing intervals.
-        remove(lowerBound, upperBound, true);
-        invokeEntryAdded(putUnsafe(lowerBound, upperBound, value));
-    }
-    
-    /**
-     * Associates a given interval without performing any interval checks.
-     * @param lowerBound - the minimum key (inclusive).
-     * @param upperBound - the maximum key (inclusive).
-     * @param value - the value, or NULL to reset the range.
-     */
-    private Entry putUnsafe(TKey lowerBound, TKey upperBound, TValue value) {
-        // OK. Add the end points now
-        if (value != null) {
-            EndPoint left = addEndPoint(lowerBound, value, State.OPEN);
-            EndPoint right = addEndPoint(upperBound, value, State.CLOSE);
-
-            return new Entry(left, right);
-        } else {
-            return null;
-        }
-    }
-    
-    /**
-     * Used to verify the validity of the given interval.
-     * @param lowerBound - lower bound (inclusive).
-     * @param upperBound - upper bound (inclusive).
-     */
-    private void checkBounds(TKey lowerBound, TKey upperBound) {
-        if (lowerBound == null)
-            throw new IllegalAccessError("lowerbound cannot be NULL.");
-        if (upperBound == null)
-            throw new IllegalAccessError("upperBound cannot be NULL.");
-        if (upperBound.compareTo(lowerBound) < 0)
-            throw new IllegalArgumentException("upperBound cannot be less than lowerBound.");
-    }
-    
-    /**
-     * Determines if the given key is within an interval.
-     * @param key - key to check.
-     * @return TRUE if the given key is within an interval in this tree, FALSE otherwise.
-     */
-    public boolean containsKey(TKey key) {
-        return getEndPoint(key) != null;
-    }
-    
-    /**
-     * Enumerates over every range in this interval tree.
-     * @return Number of ranges.
-     */
-    public Set<Entry> entrySet() {
-        // Don't mind the Java noise
-        Set<Entry> result = new HashSet<>();
-        getEntries(result, bounds);
-        return result;
-    }
-    
-    /**
-     * Remove every interval.
-     */
-    public void clear() {
-        if (!bounds.isEmpty()) {
-            remove(bounds.firstKey(), bounds.lastKey());
-        }
-    }
-    
-    /**
-     * Converts a map of end points into a set of entries.
-     * @param destination - set of entries.
-     * @param map - a map of end points.
-     */
-    private void getEntries(Set<Entry> destination, NavigableMap<TKey, EndPoint> map) {
-        Map.Entry<TKey, EndPoint> last = null;
-        
-        for (Map.Entry<TKey, EndPoint> entry : map.entrySet()) {
-            switch (entry.getValue().state) {
-            case BOTH:
-                EndPoint point = entry.getValue();
-                destination.add(new Entry(point, point));
-                break;
-            case CLOSE:
-                if (last != null) {
-                    destination.add(new Entry(last.getValue(), entry.getValue()));
-                }
-                break;
-            case OPEN:
-                // We don't know the full range yet
-                last = entry;
-                break;
-            default:
-                throw new IllegalStateException("Illegal open/close state detected.");
-            }
-        }
-    }
-    
-    /**
-     * Inserts every range from the given tree into the current tree.
-     * @param other - the other tree to read from.
-     */
-    public void putAll(AbstractIntervalTree<TKey, TValue> other) {
-        // Naively copy every range.
-        for (Entry entry : other.entrySet()) {
-            put(entry.left.key, entry.right.key, entry.getValue());
-        }
-    }
-    
-    /**
-     * Retrieves the value of the range that matches the given key, or NULL if nothing was found.
-     * @param key - the level to read for.
-     * @return The correct amount of experience, or NULL if nothing was recorded.
-     */
-    public TValue get(TKey key) {
-        EndPoint point = getEndPoint(key);
-
-        if (point != null)
-            return point.value;
-        else
-            return null;
-    }
-    
-    /**
-     * Get the left-most end-point associated with this key.
-     * @param key - key to search for.
-     * @return The end point found, or NULL.
-     */
-    protected EndPoint getEndPoint(TKey key) {
-        EndPoint ends = bounds.get(key);
-        
-        if (ends != null) {
-            // Always return the end point to the left
-            if (ends.state == State.CLOSE) {
-                Map.Entry<TKey, EndPoint> left = bounds.floorEntry(decrementKey(key));
-                return left != null ? left.getValue() : null;
-                
-            } else {
-                return ends;
-            }
-            
-        } else {
-            // We need to determine if the point intersects with a range
-            Map.Entry<TKey, EndPoint> left = bounds.floorEntry(key);
-            
-            // We only need to check to the left
-            if (left != null && left.getValue().state == State.OPEN) {
-                return left.getValue();
-            } else {
-                return null;
-            }
-        }
-    }
-    
-    /**
-     * Get the previous end point of a given key.
-     * @param point - the point to search with.
-     * @param inclusive - whether or not to include the current point in the search.
-     * @return The previous end point of a given given key, or NULL if not found.
-     */
-    protected EndPoint getPreviousEndPoint(TKey point, boolean inclusive) {
-        if (point != null) {
-            Map.Entry<TKey, EndPoint> previous = bounds.floorEntry(inclusive ? point : decrementKey(point));
-        
-            if (previous != null)
-                return previous.getValue();
-        }
-        return null;
-    }
-    
-    /**
-     * Get the next end point of a given key.
-     * @param point - the point to search with.
-     * @param inclusive - whether or not to include the current point in the search.
-     * @return The next end point of a given given key, or NULL if not found.
-     */
-    protected EndPoint getNextEndPoint(TKey point, boolean inclusive) {
-        if (point != null) {
-            Map.Entry<TKey, EndPoint> next = bounds.ceilingEntry(inclusive ? point : incrementKey(point));
-        
-            if (next != null)
-                return next.getValue();
-        }
-        return null;
-    }
-
-    private void invokeEntryAdded(Entry added) {
-        if (added != null) {
-            onEntryAdded(added);
-        }
-    }
-    
-    private void invokeEntryAdded(Set<Entry> added) {
-        for (Entry entry : added) {
-            onEntryAdded(entry);
-        }
-    }
-
-    private void invokeEntryRemoved(Set<Entry> removed) {
-        for (Entry entry : removed) {
-            onEntryRemoved(entry);
-        }
-    }
-    
-    // Listeners for added or removed entries
-    /**
-     * Invoked when an entry is added.
-     * @param added - the entry that was added.
-     */
-    protected void onEntryAdded(Entry added) { }
-    
-    /**
-     * Invoked when an entry is removed.
-     * @param removed - the removed entry.
-     */
-    protected void onEntryRemoved(Entry removed) { }
-    
-    // Helpers for decrementing or incrementing key values
-    /**
-     * Decrement the given key by one unit.
-     * @param key - the key that should be decremented.
-     * @return The new decremented key.
-     */
-    protected abstract TKey decrementKey(TKey key);
-    
-    /**
-     * Increment the given key by one unit.
-     * @param key - the key that should be incremented.
-     * @return The new incremented key.
-     */
-    protected abstract TKey incrementKey(TKey key);
-}

src/main/java/com/comphenix/protocol/concurrency/BlockingHashMap.java

@@ -1,266 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  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; either version 2 of
- *  the License, or (at your option) any later version.
- *
- *  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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.concurrency;
-
-import com.comphenix.protocol.utility.SafeCacheBuilder;
-import com.google.common.cache.CacheLoader;
-import com.google.common.cache.RemovalCause;
-import com.google.common.cache.RemovalListener;
-import com.google.common.cache.RemovalNotification;
-
-import java.util.Collection;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-import java.util.concurrent.TimeUnit;
-
-/**
- * A map that supports blocking on read operations. Null keys are not supported.
- * <p>
- * Values are stored as weak references, and will be automatically removed once they've all been dereferenced.
- * <p>
- * @author Kristian
- *
- * @param <TKey> - type of the key.
- * @param <TValue> - type of the value.
- */
-public class BlockingHashMap<TKey, TValue> {
-    // Map of values
-    private final ConcurrentMap<TKey, TValue> backingMap;
-    
-    // Map of locked objects
-    private final ConcurrentMap<TKey, Object> locks;
-    
-    /**
-     * Retrieve a cache loader that will always throw an exception.
-     * @param <TKey> Type of the key
-     * @param <TValue> Type of the value
-     * @return An invalid cache loader.
-     */
-    public static <TKey, TValue> CacheLoader<TKey, TValue> newInvalidCacheLoader() {
-        return new CacheLoader<TKey, TValue>() {
-            @Override
-            public TValue load(TKey key) throws Exception {
-                throw new IllegalStateException("Illegal use. Access the map directly instead.");
-            }
-        };
-    }
-    
-    /**
-     * Initialize a new map.
-     */
-    public BlockingHashMap() {
-        backingMap = SafeCacheBuilder.<TKey, TValue>newBuilder().
-            weakValues().
-            removalListener(
-                new RemovalListener<TKey, TValue>() {
-                    @Override
-                    public void onRemoval(RemovalNotification<TKey, TValue> entry) {
-                        // Clean up locks too
-                        if (entry.getCause() != RemovalCause.REPLACED) {
-                            locks.remove(entry.getKey());
-                        }
-                    }
-                }).
-            build(BlockingHashMap.<TKey, TValue> newInvalidCacheLoader());
-        
-        // Normal concurrent hash map
-        locks = new ConcurrentHashMap<>();
-    }
-    
-    /**
-     * Initialize a new map.
-     * @param <TKey> Type of the key
-     * @param <TValue> Type of the value
-     * @return The created map.
-     */
-    public static <TKey, TValue> BlockingHashMap<TKey, TValue> create() {
-        return new BlockingHashMap<>();
-    }
-    
-    /**
-     * Waits until a value has been associated with the given key, and then retrieves that value.
-     * @param key - the key whose associated value is to be returned
-     * @return The value to which the specified key is mapped.
-     * @throws InterruptedException If the current thread got interrupted while waiting.
-     */
-    public TValue get(TKey key) throws InterruptedException {
-        if (key == null)
-            throw new IllegalArgumentException("key cannot be NULL.");
-        
-        TValue value = backingMap.get(key);
-        
-        // Only lock if no value is available
-        if (value == null) {
-            final Object lock = getLock(key);
-            
-            synchronized (lock) {
-                while (value == null) {
-                    lock.wait();
-                    value = backingMap.get(key);
-                }
-            }
-        }
-        
-        return value;
-    }
-    
-    /**
-     * Waits until a value has been associated with the given key, and then retrieves that value.
-     * @param key - the key whose associated value is to be returned
-     * @param timeout - the amount of time to wait until an association has been made.
-     * @param unit - unit of timeout.
-     * @return The value to which the specified key is mapped, or NULL if the timeout elapsed.
-     * @throws InterruptedException If the current thread got interrupted while waiting.
-     */
-    public TValue get(TKey key, long timeout, TimeUnit unit) throws InterruptedException {
-        return get(key, timeout, unit, false);
-    }
-    
-    /**
-     * Waits until a value has been associated with the given key, and then retrieves that value.
-     * <p>
-     * If timeout is zero, this method will return immediately if it can't find an socket injector.
-     * 
-     * @param key - the key whose associated value is to be returned
-     * @param timeout - the amount of time to wait until an association has been made.
-     * @param unit - unit of timeout.
-     * @param ignoreInterrupted - TRUE if we should ignore the thread being interrupted, FALSE otherwise.
-     * @return The value to which the specified key is mapped, or NULL if the timeout elapsed.
-     * @throws InterruptedException If the current thread got interrupted while waiting.
-     */
-    public TValue get(TKey key, long timeout, TimeUnit unit, boolean ignoreInterrupted) throws InterruptedException {
-        if (key == null)
-            throw new IllegalArgumentException("key cannot be NULL.");
-        if (unit == null)
-            throw new IllegalArgumentException("Unit cannot be NULL.");
-        if (timeout < 0)
-            throw new IllegalArgumentException("Timeout cannot be less than zero.");
-        
-        TValue value = backingMap.get(key);
-        
-        // Only lock if no value is available
-        if (value == null && timeout > 0) {
-            final Object lock = getLock(key);
-            final long stopTimeNS = System.nanoTime() + unit.toNanos(timeout);
-            
-            // Don't exceed the timeout
-            synchronized (lock) {
-                while (value == null) {
-                    try {
-                        long remainingTime = stopTimeNS - System.nanoTime();
-                        
-                        if (remainingTime > 0) {
-                            TimeUnit.NANOSECONDS.timedWait(lock, remainingTime);
-                            value = backingMap.get(key);
-                        } else {
-                            // Timeout elapsed
-                            break;
-                        }
-                    } catch (InterruptedException e) {
-                        // This is fairly dangerous - but we might HAVE to block the thread
-                        if (!ignoreInterrupted)
-                            throw e;
-                    }
-                }
-            }
-        }
-        return value;
-    }
-    
-    /**
-     * Associate a given key with the given value.
-     * <p>
-     * Wakes up any blocking getters on this specific key.
-     * 
-     * @param key - the key to associate.
-     * @param value - the value.
-     * @return The previously associated value.
-     */
-    public TValue put(TKey key, TValue value) {
-        if (value == null)
-            throw new IllegalArgumentException("This map doesn't support NULL values.");
-        
-        final TValue previous = backingMap.put(key, value);
-        final Object lock = getLock(key);
-        
-        // Inform our readers about this change
-        synchronized (lock) {
-            lock.notifyAll();
-            return previous;
-        }
-    }
-    
-    /**
-     * If and only if a key is not present in the map will it be associated with the given value.
-     * @param key - the key to associate.
-     * @param value - the value to associate.
-     * @return The previous value this key has been associated with.
-     */
-    public TValue putIfAbsent(TKey key, TValue value) {
-        if (value == null)
-            throw new IllegalArgumentException("This map doesn't support NULL values.");
-        
-        final TValue previous = backingMap.putIfAbsent(key, value);
-        
-        // No need to unlock readers if we haven't changed anything
-        if (previous == null) {
-            final Object lock = getLock(key);
-            
-            synchronized (lock) {
-                lock.notifyAll();
-            }
-        }
-        return previous;
-    }
-    
-    public int size() {
-        return backingMap.size();
-    }
-    
-    public Collection<TValue> values() {
-        return backingMap.values();
-    }
-    
-    public Set<TKey> keys() {
-        return backingMap.keySet();
-    }
-    
-    /**
-     * Atomically retrieve the lock associated with a given key.
-     * @param key - the current key.
-     * @return An asssociated lock.
-     */
-    private Object getLock(TKey key) {
-        Object lock = locks.get(key);
-        
-        if (lock == null) {
-            Object created = new Object();
-            
-            // Do this atomically
-            lock = locks.putIfAbsent(key, created);
-            
-            // If we succeeded, use the latch we created - otherwise, use the already inserted latch
-            if (lock == null) {
-                lock = created;
-            }
-        }
-        
-        return lock;
-    }
-}

src/main/java/com/comphenix/protocol/concurrency/SortedCopyOnWriteArray.java

@@ -1,237 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  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; either version 2 of
- *  the License, or (at your option) any later version.
- *
- *  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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.concurrency;
-
-import com.google.common.base.Objects;
-import com.google.common.collect.Iterables;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.List;
-
-/**
- * An implicitly sorted array list that preserves insertion order and maintains duplicates.
- *
- * @param <T> - type of the elements in the list.
- */
-public class SortedCopyOnWriteArray<T extends Comparable<T>> implements Collection<T> {
-
-    // Prevent reordering
-    private volatile List<T> list;
-
-    /**
-     * Construct an empty sorted array.
-     */
-    public SortedCopyOnWriteArray() {
-        this.list = new ArrayList<>();
-    }
-
-    /**
-     * Create a sorted array from the given list. The elements will be automatically sorted.
-     *
-     * @param wrapped - the collection whose elements are to be placed into the list.
-     */
-    public SortedCopyOnWriteArray(Collection<T> wrapped) {
-        this.list = new ArrayList<>(wrapped);
-        Collections.sort(this.list);
-    }
-
-    /**
-     * Inserts the given element in the proper location.
-     *
-     * @param value - element to insert.
-     */
-    @Override
-    public synchronized boolean add(T value) {
-        // We use NULL as a special marker, so we don't allow it
-        if (value == null) throw new IllegalArgumentException("value cannot be NULL");
-
-        List<T> copy = new ArrayList<>();
-        boolean inserted = false;
-
-        for (T element : this.list) {
-            // If the value is now greater than the current element, it should be placed right before it
-            if (!inserted && value.compareTo(element) < 0) {
-                copy.add(value);
-                inserted = true;
-            }
-            copy.add(element);
-        }
-
-        // Don't forget to add it
-        if (!inserted) {
-            copy.add(value);
-        }
-
-        this.list = copy;
-        return true;
-    }
-
-    @Override
-    public synchronized boolean addAll(Collection<? extends T> values) {
-        if (values == null) throw new IllegalArgumentException("values cannot be NULL");
-
-        if (values.size() == 0) {
-            return false;
-        }
-
-        List<T> copy = new ArrayList<>(this.list);
-
-        // Insert the new content and sort it
-        copy.addAll(values);
-        Collections.sort(copy);
-
-        this.list = copy;
-        return true;
-    }
-
-    /**
-     * Removes from the list by making a new list with every element except the one given.
-     * <p>
-     * Objects will be compared using the given objects equals() method.
-     *
-     * @param value - value to remove.
-     */
-    @Override
-    public synchronized boolean remove(Object value) {
-        List<T> copy = new ArrayList<>();
-        boolean result = false;
-
-        // Note that there's not much to be gained from using BinarySearch, as we
-        // have to copy (and thus read) the entire list regardless.
-
-        // Copy every element except the one given to us.
-        for (T element : this.list) {
-            if (!Objects.equal(value, element)) {
-                copy.add(element);
-            } else {
-                result = true;
-            }
-        }
-
-        this.list = copy;
-        return result;
-    }
-
-    @Override
-    public boolean removeAll(Collection<?> values) {
-        // Special cases
-        if (values == null) throw new IllegalArgumentException("values cannot be NULL");
-
-        if (values.size() == 0) {
-            return false;
-        }
-
-        List<T> copy = new ArrayList<>(this.list);
-        copy.removeAll(values);
-
-        this.list = copy;
-        return true;
-    }
-
-    @Override
-    public boolean retainAll(Collection<?> values) {
-        // Special cases
-        if (values == null) throw new IllegalArgumentException("values cannot be NULL");
-
-        if (values.isEmpty()) return false;
-
-        List<T> copy = new ArrayList<>(this.list);
-        copy.removeAll(values);
-
-        this.list = copy;
-        return true;
-    }
-
-    /**
-     * Removes from the list by making a copy of every element except the one with the given index.
-     *
-     * @param index - index of the element to remove.
-     */
-    public synchronized void remove(int index) {
-        List<T> copy = new ArrayList<>(this.list);
-
-        copy.remove(index);
-        this.list = copy;
-    }
-
-    /**
-     * Retrieves an element by index.
-     *
-     * @param index - index of element to retrieve.
-     * @return The element at the given location.
-     */
-    public T get(int index) {
-        return this.list.get(index);
-    }
-
-    /**
-     * Retrieve the size of the list.
-     *
-     * @return Size of the list.
-     */
-    public int size() {
-        return this.list.size();
-    }
-
-    /**
-     * Retrieves an iterator over the elements in the given list. Warning: No not attempt to remove elements using the
-     * iterator.
-     */
-    public Iterator<T> iterator() {
-        return Iterables.unmodifiableIterable(this.list).iterator();
-    }
-
-    @Override
-    public void clear() {
-        this.list = new ArrayList<>();
-    }
-
-    @Override
-    public boolean contains(Object value) {
-        return this.list.contains(value);
-    }
-
-    @Override
-    public boolean containsAll(Collection<?> values) {
-        return this.list.containsAll(values);
-    }
-
-    @Override
-    public boolean isEmpty() {
-        return this.list.isEmpty();
-    }
-
-    @Override
-    public Object[] toArray() {
-        return this.list.toArray();
-    }
-
-    @SuppressWarnings("hiding")
-    @Override
-    public <T> T[] toArray(T[] a) {
-        return this.list.toArray(a);
-    }
-
-    @Override
-    public String toString() {
-        return this.list.toString();
-    }
-}

src/main/java/com/comphenix/protocol/concurrent/PacketTypeListenerSet.java

@@ -0,0 +1,122 @@
+package com.comphenix.protocol.concurrent;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.events.PacketListener;
+import com.google.common.collect.ImmutableSet;
+
+/**
+ * Manages the association between packet types and their corresponding
+ * listeners.
+ * <p>
+ * This class is thread-safe for modifications. All read methods work on a
+ * lock-free, best-effort principle, ensuring fast access.
+ * </p>
+ */
+public class PacketTypeListenerSet {
+
+    // Map to store packet types and their associated listeners
+    private final Map<PacketType, Set<PacketListener>> typeMap = new HashMap<>();
+    // Set to store packet classes of packet types that have listeners
+    private final Set<Class<?>> classSet = new HashSet<>();
+
+    /**
+     * Adds a listener for a specific packet type.
+     *
+     * @param packetType the packet type
+     * @param listener   the listener to add
+     * @return {@code true} if the listener and packetType was added to the set;
+     *         {@code false} otherwise
+     * @throws NullPointerException if the packetType or listener is null
+     */
+    public synchronized boolean add(PacketType packetType, PacketListener listener) {
+        Objects.requireNonNull(packetType, "packetType cannot be null");
+        Objects.requireNonNull(listener, "listener cannot be null");
+
+        Set<PacketListener> listenerSet = this.typeMap.computeIfAbsent(packetType, key -> new HashSet<>());
+        if (!listenerSet.add(listener)) {
+            return false;
+        }
+
+        // we can always add the packet class here as long as the listener got added
+        this.classSet.add(packetType.getPacketClass());
+
+        return true;
+    }
+
+    /**
+     * Removes a listener for a specific packet type.
+     *
+     * @param packetType the packet type
+     * @param listener   the listener to remove
+     * @return {@code true} if the set contained the specified listener;
+     *         {@code false} otherwise
+     * @throws NullPointerException if the packetType or listener is null
+     */
+    public synchronized boolean remove(PacketType packetType, PacketListener listener) {
+        Objects.requireNonNull(packetType, "packetType cannot be null");
+        Objects.requireNonNull(listener, "listener cannot be null");
+
+        Set<PacketListener> listenerSet = this.typeMap.get(packetType);
+        if (listenerSet == null) {
+            // this should never happen so better check for it during unit tests
+            assert !classSet.contains(packetType.getPacketClass());
+            return false;
+        }
+
+        if (!listenerSet.remove(listener)) {
+            // return since the listenerSet didn't change
+            return false;
+        }
+
+        // packet type has no listeners remove type
+        if (listenerSet.isEmpty()) {
+            this.typeMap.remove(packetType);
+            this.classSet.remove(packetType.getPacketClass());
+        }
+
+        return true;
+    }
+
+    /**
+     * Checks if there are any listeners for a specific packet type.
+     *
+     * @param packetType the packet type
+     * @return true if there are listeners for the packet type, false otherwise
+     */
+    public boolean contains(PacketType packetType) {
+        return this.typeMap.containsKey(packetType);
+    }
+
+    /**
+     * Checks if there are any listeners for a specific packet class.
+     *
+     * @param packetClass the packet class
+     * @return true if there are listeners for the packet class, false otherwise
+     */
+    public boolean contains(Class<?> packetClass) {
+        return this.classSet.contains(packetClass);
+    }
+
+    /**
+     * Gets all the packet types that have listeners.
+     *
+     * @return a set of packet types that have listeners
+     */
+    public ImmutableSet<PacketType> values() {
+        return ImmutableSet.copyOf(this.typeMap.keySet());
+    }
+
+    /**
+     * Clears all listeners and their associated packet types.
+     */
+    public void clear() {
+        this.typeMap.clear();
+        this.classSet.clear();
+    }
+}

src/main/java/com/comphenix/protocol/concurrent/PacketTypeMultiMap.java

@@ -0,0 +1,165 @@
+package com.comphenix.protocol.concurrent;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Iterables;
+
+/**
+ * A map-like data structure that associates {@link PacketType}s with sets of
+ * values. The values are stored in a {@link SortedCopyOnWriteSet}, which
+ * ensures that the elements are kept in a sorted order based on the
+ * {@link ListenerPriority} of the {@link ListeningWhitelist}, while maintaining
+ * their insertion order for elements with equal priorities.
+ * <p>
+ * This class is thread-safe for modifications and guarantees a
+ * modification-free iteration of associated values per packet type. All read
+ * methods work on a lock-free, best-effort principle, ensuring fast access.
+ * </p>
+ *
+ * @param <T> the type of elements maintained by this map
+ */
+public class PacketTypeMultiMap<T> {
+
+    private final Map<PacketType, SortedCopyOnWriteSet<T, PriorityHolder>> typeMap = new HashMap<>();
+
+    /**
+     * Adds a value to the map, associating it with the {@link PacketType}s
+     * contained in the specified {@link ListeningWhitelist}. If the value is
+     * already present in the set (as determined by {@code equals}), it will not be
+     * added again.
+     *
+     * @param key   the whitelist containing the packet types to associate the value
+     *              with
+     * @param value the value to be added
+     * @throws NullPointerException if the key or value is null
+     */
+    public synchronized void put(ListeningWhitelist key, T value) {
+        Objects.requireNonNull(key, "key cannot be null");
+        Objects.requireNonNull(value, "value cannot be null");
+
+        for (PacketType packetType : key.getTypes()) {
+            this.typeMap.computeIfAbsent(packetType, type -> new SortedCopyOnWriteSet<>()).add(value,
+                    new PriorityHolder(key));
+        }
+    }
+
+    /**
+     * Removes a value from the map, disassociating it from the {@link PacketType}s
+     * contained in the specified {@link ListeningWhitelist}. If the value is not
+     * present, the map remains unchanged.
+     *
+     * @param key   the whitelist containing the packet types to disassociate the
+     *              value from
+     * @param value the value to be removed
+     * @return a list of packet types that got removed because they don't have any
+     *         associated values anymore
+     * @throws NullPointerException if the key or value is null
+     */
+    public synchronized List<PacketType> remove(ListeningWhitelist key, T value) {
+        Objects.requireNonNull(key, "key cannot be null");
+        Objects.requireNonNull(value, "value cannot be null");
+
+        List<PacketType> removedTypes = new ArrayList<>();
+
+        for (PacketType packetType : key.getTypes()) {
+            SortedCopyOnWriteSet<T, PriorityHolder> entrySet = this.typeMap.get(packetType);
+            if (entrySet == null) {
+                continue;
+            }
+
+            // we shouldn't have empty entrySets
+            assert !entrySet.isEmpty();
+
+            // continue if value wasn't removed
+            if (!entrySet.remove(value)) {
+                continue;
+            }
+
+            // remove packet type without entries
+            if (entrySet.isEmpty()) {
+                this.typeMap.remove(packetType);
+                removedTypes.add(packetType);
+            }
+        }
+
+        return removedTypes;
+    }
+
+    /**
+     * Returns an immutable set of all {@link PacketType}s currently in the map.
+     *
+     * @return an immutable set of packet types
+     */
+    public ImmutableSet<PacketType> getPacketTypes() {
+        return ImmutableSet.copyOf(this.typeMap.keySet());
+    }
+
+    /**
+     * Checks if a specified {@link PacketType} is contained in the map.
+     *
+     * @param packetType the packet type to check for
+     * @return {@code true} if the packet type is contained in the map,
+     *         {@code false} otherwise
+     */
+    public boolean contains(PacketType packetType) {
+        return this.typeMap.containsKey(packetType);
+    }
+
+    /**
+     * Returns an iterable of values associated with a specified {@link PacketType}.
+     * If no values are associated with the packet type, an empty iterator is
+     * returned.
+     *
+     * @param packetType the packet type to retrieve values for
+     * @return an iterable of values associated with the packet type
+     */
+    public Iterable<T> get(PacketType packetType) {
+        return () -> {
+            SortedCopyOnWriteSet<T, PriorityHolder> entrySet = this.typeMap.get(packetType);
+
+            if (entrySet != null) {
+                return entrySet.iterator();
+            }
+
+            return Collections.emptyIterator();
+        };
+    }
+
+    public Iterable<T> values() {
+        return Iterables.concat(this.typeMap.values());
+    }
+
+    /**
+     * Clears all entries from the map.
+     */
+    public synchronized void clear() {
+        this.typeMap.clear();
+    }
+
+    /**
+     * A holder for priority information used to order elements within the
+     * {@link SortedCopyOnWriteSet}.
+     */
+    private static class PriorityHolder implements Comparable<PriorityHolder> {
+
+        private final ListenerPriority priority;
+
+        public PriorityHolder(ListeningWhitelist key) {
+            this.priority = key.getPriority();
+        }
+
+        @Override
+        public int compareTo(PriorityHolder other) {
+            return Integer.compare(this.priority.getSlot(), other.priority.getSlot());
+        }
+    }
+}

src/main/java/com/comphenix/protocol/concurrent/SortedCopyOnWriteSet.java

@@ -0,0 +1,194 @@
+package com.comphenix.protocol.concurrent;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+import java.util.Objects;
+
+/**
+ * A collection that stores elements in a sorted order based on a provided
+ * {@link Comparable}, while ensuring element equality is checked using their
+ * {@code equals} method.
+ * <p>
+ * This class uses a copy-on-write strategy for updates, ensuring that iteration
+ * over the collection is safe for concurrent use, even though the collection
+ * itself is not thread-safe for modifications.
+ * <p>
+ * Elements are inserted into the set in a position determined by their natural
+ * ordering. If multiple elements have comparables that are considered equal
+ * (i.e., {@code compareTo} returns zero), they will maintain their insertion
+ * order. If an element is already present in the set (as determined by
+ * {@code equals}), it will not be added again.
+ * 
+ * @param <E> the type of elements maintained by this set
+ * @param <C> the type of the comparable used for ordering the elements
+ */
+@SuppressWarnings("unchecked")
+public class SortedCopyOnWriteSet<E, C extends Comparable<C>> implements Iterable<E> {
+
+    private volatile Entry<E, C>[] array = new Entry[0];
+
+    /**
+     * Adds the specified element to this set in a sorted order based on the
+     * provided {@code Comparable}. The element will be inserted before the first
+     * position that is strictly greater than the element. This ensures that
+     * elements maintain their insertion order when their comparables are considered
+     * equal (i.e., when {@code compareTo} returns zero).
+     * <p>
+     * If the set already contains the element (as determined by {@code equals}),
+     * the element is not added again.
+     * </p>
+     *
+     * @param element    the element to be added
+     * @param comparable the comparable used to determine the element's position in
+     *                   the sorted order
+     * @return {@code true} if the element was added to the set; {@code false} if
+     *         the set already contained the element
+     * @throws NullPointerException if the specified element is null
+     */
+    public boolean add(E element, C comparable) {
+        Objects.requireNonNull(element, "element cannot be null");
+
+        // create new entry
+        Entry<E, C> entry = new Entry<>(element, comparable);
+
+        // Find correct insert index for element by compareTo, also use same loop to
+        // scan for duplicate elements
+        int insertIndex = -1;
+        for (int index = 0; index < array.length; index++) {
+            if (insertIndex == -1 && entry.compareTo(array[index]) < 0) {
+                insertIndex = index;
+            }
+
+            // array already contains element, return false
+            if (array[index].is(element)) {
+                return false;
+            }
+        }
+
+        // insert at end of array
+        if (insertIndex == -1) {
+            insertIndex = array.length;
+        }
+
+        // create a new array of size N+1
+        Entry<E, C>[] newArray = new Entry[array.length + 1];
+
+        // copy the old array to the new array and insert the new element
+        System.arraycopy(array, 0, newArray, 0, insertIndex);
+        newArray[insertIndex] = entry;
+        System.arraycopy(array, insertIndex, newArray, insertIndex + 1, array.length - insertIndex);
+
+        // copy new array to field
+        array = newArray;
+
+        return true;
+    }
+
+    /**
+     * Removes the specified element from this set if it is present.
+     *
+     * @param element the element to be removed
+     * @return {@code true} if the set contained the specified element;
+     *         {@code false} otherwise
+     * @throws NullPointerException if the specified element is null
+     */
+    public boolean remove(E element) {
+        Objects.requireNonNull(element, "element cannot be null");
+
+        // find the element in array
+        int removeIndex = -1;
+        for (int index = 0; index < array.length; index++) {
+            if (array[index].is(element)) {
+                removeIndex = index;
+                break;
+            }
+        }
+
+        // can't find element, return false
+        if (removeIndex < 0) {
+            return false;
+        }
+
+        // create a new array of size N-1
+        Entry<E, C>[] newArray = new Entry[array.length - 1];
+
+        // copy the elements from the old array to the new array, excluding removed
+        // element
+        System.arraycopy(array, 0, newArray, 0, removeIndex);
+        System.arraycopy(array, removeIndex + 1, newArray, removeIndex, array.length - removeIndex - 1);
+
+        // copy new array to field
+        array = newArray;
+
+        return true;
+    }
+
+    /**
+     * Returns {@code true} if this set contains no elements.
+     *
+     * @return {@code true} if this set contains no elements
+     */
+    public boolean isEmpty() {
+        return this.array.length == 0;
+    }
+
+    /**
+     * Returns an iterator over the elements in this set. The elements are returned
+     * in natural order.
+     *
+     * @return an iterator over the elements in this set
+     */
+    @Override
+    public Iterator<E> iterator() {
+        return new ElementIterator(this.array);
+    }
+
+    private class ElementIterator implements Iterator<E> {
+
+        private final Entry<E, C>[] array;
+        private int cursor = 0;
+
+        public ElementIterator(Entry<E, C>[] array) {
+            this.array = array;
+        }
+
+        @Override
+        public boolean hasNext() {
+            return this.cursor < this.array.length;
+        }
+
+        @Override
+        public E next() {
+            if (this.cursor >= this.array.length) {
+                throw new NoSuchElementException();
+            }
+
+            int index = this.cursor++;
+            return this.array[index].getElement();
+        }
+    }
+
+    private static class Entry<E, C extends Comparable<C>> implements Comparable<Entry<E, C>> {
+
+        private E element;
+        private C comperable;
+
+        public Entry(E element, C comperable) {
+            this.element = element;
+            this.comperable = comperable;
+        }
+
+        public E getElement() {
+            return element;
+        }
+
+        @Override
+        public int compareTo(Entry<E, C> other) {
+            return this.comperable.compareTo(other.comperable);
+        }
+
+        public boolean is(E element) {
+            return this.element.equals(element);
+        }
+    }
+}

src/main/java/com/comphenix/protocol/error/DetailedErrorReporter.java

@@ -30,8 +30,12 @@ import java.util.concurrent.atomic.AtomicInteger;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import org.apache.commons.lang.builder.ToStringBuilder;
+import org.apache.commons.lang.builder.ToStringStyle;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
+
 import com.comphenix.protocol.ProtocolConfig;
-import com.comphenix.protocol.ProtocolLib;
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.ProtocolLogger;
 import com.comphenix.protocol.collections.ExpireHashMap;
@@ -41,11 +45,6 @@ import com.comphenix.protocol.reflect.PrettyPrinter;
 import com.google.common.base.Preconditions;
 import com.google.common.primitives.Primitives;
 
-import org.apache.commons.lang.builder.ToStringBuilder;
-import org.apache.commons.lang.builder.ToStringStyle;
-import org.bukkit.Bukkit;
-import org.bukkit.plugin.Plugin;
-
 /**
  * Internal class used to handle exceptions.
  * 
@@ -479,7 +478,7 @@ public class DetailedErrorReporter implements ErrorReporter {
             } catch (LinkageError ex) {
                 // Apache is probably missing
                 apacheCommonsMissing = true;
-            } catch (ThreadDeath | OutOfMemoryError e) {
+            } catch (OutOfMemoryError e) {
                 throw e;
             } catch (Throwable ex) {
                 // Don't use the error logger to log errors in error logging (that could lead to infinite loops)

src/main/java/com/comphenix/protocol/events/AbstractStructure.java

@@ -1,22 +1,17 @@
 package com.comphenix.protocol.events;
 
-import javax.annotation.Nonnull;
 import java.lang.reflect.Array;
 import java.time.Instant;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.EnumSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.UUID;
 
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.reflect.EquivalentConverter;
-import com.comphenix.protocol.reflect.StructureModifier;
-import com.comphenix.protocol.utility.MinecraftReflection;
-import com.comphenix.protocol.utility.MinecraftVersion;
-import com.comphenix.protocol.utility.StreamSerializer;
-import com.comphenix.protocol.wrappers.*;
-import com.comphenix.protocol.wrappers.WrappedProfilePublicKey.WrappedProfileKeyData;
-import com.comphenix.protocol.wrappers.nbt.NbtBase;
-import com.comphenix.protocol.wrappers.nbt.NbtCompound;
-import com.comphenix.protocol.wrappers.nbt.NbtFactory;
-import com.google.common.base.Preconditions;
+import javax.annotation.Nonnull;
 
 import org.apache.commons.lang.Validate;
 import org.bukkit.Material;
@@ -31,6 +26,50 @@ import org.bukkit.potion.PotionEffectType;
 import org.bukkit.util.Vector;
 import org.jetbrains.annotations.NotNull;
 
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.reflect.EquivalentConverter;
+import com.comphenix.protocol.reflect.StructureModifier;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.utility.MinecraftVersion;
+import com.comphenix.protocol.utility.StreamSerializer;
+import com.comphenix.protocol.wrappers.BlockPosition;
+import com.comphenix.protocol.wrappers.BukkitConverters;
+import com.comphenix.protocol.wrappers.ChunkCoordIntPair;
+import com.comphenix.protocol.wrappers.Converters;
+import com.comphenix.protocol.wrappers.CustomPacketPayloadWrapper;
+import com.comphenix.protocol.wrappers.Either;
+import com.comphenix.protocol.wrappers.EnumWrappers;
+import com.comphenix.protocol.wrappers.MinecraftKey;
+import com.comphenix.protocol.wrappers.MovingObjectPositionBlock;
+import com.comphenix.protocol.wrappers.MultiBlockChangeInfo;
+import com.comphenix.protocol.wrappers.Pair;
+import com.comphenix.protocol.wrappers.PlayerInfoData;
+import com.comphenix.protocol.wrappers.WrappedAttribute;
+import com.comphenix.protocol.wrappers.WrappedBlockData;
+import com.comphenix.protocol.wrappers.WrappedChatComponent;
+import com.comphenix.protocol.wrappers.WrappedDataValue;
+import com.comphenix.protocol.wrappers.WrappedDataWatcher;
+import com.comphenix.protocol.wrappers.WrappedEnumEntityUseAction;
+import com.comphenix.protocol.wrappers.WrappedGameProfile;
+import com.comphenix.protocol.wrappers.WrappedLevelChunkData;
+import com.comphenix.protocol.wrappers.WrappedMessageSignature;
+import com.comphenix.protocol.wrappers.WrappedNumberFormat;
+import com.comphenix.protocol.wrappers.WrappedParticle;
+import com.comphenix.protocol.wrappers.WrappedProfilePublicKey;
+import com.comphenix.protocol.wrappers.WrappedProfilePublicKey.WrappedProfileKeyData;
+import com.comphenix.protocol.wrappers.WrappedRegistrable;
+import com.comphenix.protocol.wrappers.WrappedRegistry;
+import com.comphenix.protocol.wrappers.WrappedRemoteChatSessionData;
+import com.comphenix.protocol.wrappers.WrappedSaltedSignature;
+import com.comphenix.protocol.wrappers.WrappedServerPing;
+import com.comphenix.protocol.wrappers.WrappedStatistic;
+import com.comphenix.protocol.wrappers.WrappedTeamParameters;
+import com.comphenix.protocol.wrappers.WrappedWatchableObject;
+import com.comphenix.protocol.wrappers.nbt.NbtBase;
+import com.comphenix.protocol.wrappers.nbt.NbtCompound;
+import com.comphenix.protocol.wrappers.nbt.NbtFactory;
+import com.google.common.base.Preconditions;
+
 public abstract class AbstractStructure {
     protected transient Object handle;
     protected transient StructureModifier<Object> structureModifier;
@@ -410,7 +449,7 @@ public abstract class AbstractStructure {
     }
 
     /**
-     * Retrieves a read/write structure for collections of watchable objects.
+     * Retrieves a read/write structure for collections of watchable objects before Minecraft 1.19.3.
      * <p>
      * This modifier will automatically marshal between the visible WrappedWatchableObject and the
      * internal Minecraft WatchableObject.
@@ -424,7 +463,7 @@ public abstract class AbstractStructure {
     }
 
     /**
-     * Retrieves a read/write structure for collections of data values.
+     * Retrieves a read/write structure for collections of data values for Minecraft 1.19.3 or later.
      * @return A modifier for data values.
      */
     public StructureModifier<List<WrappedDataValue>> getDataValueCollectionModifier() {
@@ -770,6 +809,10 @@ public abstract class AbstractStructure {
      * @return A modifier for MobEffectList fields.
      */
     public StructureModifier<PotionEffectType> getEffectTypes() {
+        if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
+            return getHolders(MinecraftReflection.getMobEffectListClass(), BukkitConverters.getEffectTypeConverter());
+        }
+
         // Convert to and from Bukkit
         return structureModifier.withType(
                 MinecraftReflection.getMobEffectListClass(),
@@ -794,11 +837,20 @@ public abstract class AbstractStructure {
      * @return A modifier for Holder fields
      * @param <T> Bukkit type
      */
-    public <T> StructureModifier<T> getHolders(Class<?> genericType,
-                                               EquivalentConverter<T> converter) {
+    public <T> StructureModifier<T> getHolders(Class<?> genericType, EquivalentConverter<T> converter) {
+        Preconditions.checkNotNull(genericType, "genericType cannot be null");
+        Preconditions.checkNotNull(converter, "converter cannot be null");
+
+        Class<?> holderClass = MinecraftReflection.getHolderClass();
+
+        WrappedRegistry registry = WrappedRegistry.getRegistry(genericType);
+        if (registry == null) {
+            throw new IllegalArgumentException("No registry found for " + genericType);
+        }
+
         return structureModifier.withParamType(
-                MinecraftReflection.getHolderClass(),
-                Converters.holder(converter, WrappedRegistry.getRegistry(genericType)),
+                holderClass,
+                Converters.ignoreNull(Converters.holder(converter, registry)),
                 genericType
         );
     }
@@ -858,6 +910,55 @@ public abstract class AbstractStructure {
                 EnumWrappers.getChatTypeConverter());
     }
 
+    /**
+     * Retrieve a read/write structure for the DisplaySlot enum in 1.20.2.
+     * @return A modifier for DisplaySlot enum fields.
+     */
+    public StructureModifier<EnumWrappers.DisplaySlot> getDisplaySlots() {
+        return structureModifier.withType(
+                EnumWrappers.getDisplaySlotClass(),
+                EnumWrappers.getDisplaySlotConverter());
+    }
+
+    /**
+     * Retrieve a read/write structure for the RenderType enum.
+     * @return A modifier for RenderType enum fields.
+     */
+    public StructureModifier<EnumWrappers.RenderType> getRenderTypes() {
+        return structureModifier.withType(
+                EnumWrappers.getRenderTypeClass(),
+                EnumWrappers.getRenderTypeConverter());
+    }
+
+    /**
+     * Retrieve a read/write structure for the ChatFormatting enum.
+     * @return A modifier for ChatFormatting enum fields.
+     */
+    public StructureModifier<EnumWrappers.ChatFormatting> getChatFormattings() {
+        return structureModifier.withType(
+                EnumWrappers.getChatFormattingClass(),
+                EnumWrappers.getChatFormattingConverter());
+    }
+
+    /**
+     * Retrieve a read/write structure for optional team parameters in 1.17+.
+     * @return A modifier for optional team parameters fields.
+     */
+    public StructureModifier<Optional<WrappedTeamParameters>> getOptionalTeamParameters() {
+        return getOptionals(BukkitConverters.getWrappedTeamParametersConverter());
+    }
+
+    /**
+     * Retrieve a read/write structure for the NumberFormat class in 1.20.4+.
+     * @return A modifier for NumberFormat fields.
+     */
+    public StructureModifier<WrappedNumberFormat> getNumberFormats() {
+        return structureModifier.withType(
+                MinecraftReflection.getNumberFormatClass().orElse(null),
+                BukkitConverters.getWrappedNumberFormatConverter());
+    }
+
+
     /**
      * Retrieve a read/write structure for the MinecraftKey class.
      * @return A modifier for MinecraftKey fields.
@@ -868,6 +969,16 @@ public abstract class AbstractStructure {
                 MinecraftKey.getConverter());
     }
 
+    /**
+     * Retrieve a read/write structure for custom packet payloads (available since Minecraft 1.20.2).
+     * @return A modifier for CustomPacketPayloads fields.
+     */
+    public StructureModifier<CustomPacketPayloadWrapper> getCustomPacketPayloads() {
+        return structureModifier.withType(
+                CustomPacketPayloadWrapper.getCustomPacketPayloadClass(),
+                CustomPacketPayloadWrapper.getConverter());
+    }
+
     /**
      * Retrieve a read/write structure for dimension IDs in 1.13.1+
      * @return A modifier for dimension IDs
@@ -1063,6 +1174,17 @@ public abstract class AbstractStructure {
         );
     }
 
+    /**
+     * Retrieve a read/write structure for the ClientIntent enum used in Handshake/SetProtocol packet
+     * @return A modifier for Protocol enum fields.
+     */
+    public StructureModifier<EnumWrappers.ClientIntent> getClientIntents() {
+        // Convert to and from the wrapper
+        return structureModifier.withType(
+                EnumWrappers.getClientIntentClass(),
+                EnumWrappers.getClientIntentConverter());
+    }
+
     /**
      * @param leftConverter converter for left values
      * @param rightConverter converter for right values

src/main/java/com/comphenix/protocol/events/ListenerOptions.java

@@ -13,6 +13,7 @@ public enum ListenerOptions {
      * Disable the automatic game phase detection that will normally force {@link GamePhase#LOGIN} when a packet ID is
      * known to be transmitted during login.
      */
+    @Deprecated
     DISABLE_GAMEPHASE_DETECTION,
 
     /**

src/main/java/com/comphenix/protocol/events/ListeningWhitelist.java

@@ -17,7 +17,12 @@
 
 package com.comphenix.protocol.events;
 
-import java.util.*;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.EnumSet;
+import java.util.HashSet;
+import java.util.Set;
 
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.injector.GamePhase;
@@ -90,20 +95,6 @@ public class ListeningWhitelist {
         return new Builder(template);
     }
 
-    /**
-     * Construct a copy of a given enum.
-     *
-     * @param options - the options to copy, or NULL to indicate the empty set.
-     * @return A copy of the enum set.
-     */
-    private static <T extends Enum<T>> EnumSet<T> safeEnumSet(Collection<T> options, Class<T> enumClass) {
-        if (options != null && !options.isEmpty()) {
-            return EnumSet.copyOf(options);
-        } else {
-            return EnumSet.noneOf(enumClass);
-        }
-    }
-
     /**
      * Construct a copy of a given set.
      *
@@ -311,6 +302,7 @@ public class ListeningWhitelist {
          * @param gamePhase - the gamephase.
          * @return This builder, for chaining.
          */
+        @Deprecated
         public Builder gamePhase(GamePhase gamePhase) {
             this.gamePhase = gamePhase;
             return this;
@@ -321,6 +313,7 @@ public class ListeningWhitelist {
          *
          * @return This builder, for chaining.
          */
+        @Deprecated
         public Builder gamePhaseBoth() {
             return gamePhase(GamePhase.BOTH);
         }

src/main/java/com/comphenix/protocol/events/PacketContainer.java

@@ -31,9 +31,11 @@ import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 import java.util.function.Function;
+import javax.annotation.Nullable;
 
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.injector.StructureCache;
+import com.comphenix.protocol.injector.packet.PacketRegistry;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.reflect.ObjectWriter;
 import com.comphenix.protocol.reflect.StructureModifier;
@@ -56,10 +58,11 @@ import com.comphenix.protocol.utility.MinecraftMethods;
 import com.comphenix.protocol.utility.MinecraftReflection;
 import com.comphenix.protocol.utility.MinecraftVersion;
 import com.comphenix.protocol.wrappers.Converters;
+import com.comphenix.protocol.wrappers.WrappedStreamCodec;
+
 import com.google.common.collect.Sets;
 import io.netty.buffer.ByteBuf;
 import io.netty.util.ReferenceCountUtil;
-import javax.annotation.Nullable;
 
 /**
  * Represents a Minecraft packet indirectly.
@@ -78,7 +81,7 @@ public class PacketContainer extends AbstractStructure implements Serializable {
     // Used to clone packets
     private static final AggregateCloner DEEP_CLONER = AggregateCloner
             .newBuilder()
-            .instanceProvider(StructureCache::newPacket)
+            .instanceProvider(StructureCache::newInstance)
             .andThen(BukkitCloner.class)
             .andThen(ImmutableDetector.class)
             .andThen(JavaOptionalCloner.class)
@@ -89,7 +92,7 @@ public class PacketContainer extends AbstractStructure implements Serializable {
 
     private static final AggregateCloner SHALLOW_CLONER = AggregateCloner
             .newBuilder()
-            .instanceProvider(StructureCache::newPacket)
+            .instanceProvider(StructureCache::newInstance)
             .andThen(param -> {
                 if (param == null)
                     throw new IllegalArgumentException("Cannot be NULL.");
@@ -345,6 +348,11 @@ public class PacketContainer extends AbstractStructure implements Serializable {
         }
 
         Function<Object, Object> deserializer = PACKET_DESERIALIZER_METHODS.computeIfAbsent(packetType, type -> {
+            WrappedStreamCodec streamCodec = PacketRegistry.getStreamCodec(type.getPacketClass());
+            if (streamCodec != null) {
+                return streamCodec::decode;
+            }
+
             if (MinecraftVersion.CAVES_CLIFFS_1.atOrAbove()) {
                 // best guess - a constructor which takes a buffer as the only argument
                 ConstructorAccessor bufferConstructor = Accessors.getConstructorAccessorOrNull(
@@ -392,7 +400,14 @@ public class PacketContainer extends AbstractStructure implements Serializable {
         }
 
         Object targetBuffer = MinecraftReflection.createPacketDataSerializer(0);
-        MinecraftMethods.getPacketWriteByteBufMethod().invoke(handle, targetBuffer);
+
+        WrappedStreamCodec streamCodec = PacketRegistry.getStreamCodec(type.getPacketClass());
+        if (streamCodec != null) {
+            streamCodec.encode(targetBuffer, handle);
+        } else {
+            MinecraftMethods.getPacketWriteByteBufMethod().invoke(handle, targetBuffer);
+        }
+
         return targetBuffer;
     }
 

src/main/java/com/comphenix/protocol/events/SerializedOfflinePlayer.java

@@ -17,10 +17,25 @@
 
 package com.comphenix.protocol.events;
 
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.Date;
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
 import com.comphenix.protocol.reflect.accessors.Accessors;
 import com.comphenix.protocol.reflect.accessors.MethodAccessor;
 import com.comphenix.protocol.utility.ByteBuddyFactory;
 import com.comphenix.protocol.utility.Util;
+
 import net.bytebuddy.description.ByteCodeElement;
 import net.bytebuddy.description.modifier.Visibility;
 import net.bytebuddy.dynamic.loading.ClassLoadingStrategy;
@@ -35,22 +50,18 @@ import net.bytebuddy.implementation.bind.annotation.Origin;
 import net.bytebuddy.implementation.bind.annotation.RuntimeType;
 import net.bytebuddy.matcher.ElementMatcher;
 import net.bytebuddy.matcher.ElementMatchers;
-import org.bukkit.*;
+import org.bukkit.BanEntry;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.Statistic;
+import org.bukkit.World;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Player;
 import org.bukkit.profile.PlayerProfile;
 import org.jetbrains.annotations.NotNull;
-
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.io.Serializable;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.Map;
-import java.util.UUID;
-import java.util.concurrent.ConcurrentHashMap;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Represents a player object that can be serialized by Java.
@@ -141,6 +152,16 @@ class SerializedOfflinePlayer implements OfflinePlayer, Serializable {
         return lastSeen;
     }
 
+    @Override
+    public Location getRespawnLocation() {
+        return null;
+    }
+
+    @Override
+    public Location getLocation() {
+        return null;
+    }
+
     // TODO do we need to implement this?
 
     public void incrementStatistic(Statistic statistic) throws IllegalArgumentException {
@@ -240,6 +261,24 @@ class SerializedOfflinePlayer implements OfflinePlayer, Serializable {
         return banned;
     }
 
+    @Nullable
+    public BanEntry<PlayerProfile> ban(@Nullable String s, @Nullable Date date, @Nullable String s1) {
+        setBanned(true);
+        return null;
+    }
+
+    @Nullable
+    public BanEntry<PlayerProfile> ban(@Nullable String s, @Nullable Instant instant, @Nullable String s1) {
+        setBanned(true);
+        return null;
+    }
+
+    @Nullable
+    public BanEntry<PlayerProfile> ban(@Nullable String s, @Nullable Duration duration, @Nullable String s1) {
+        setBanned(true);
+        return null;
+    }
+
     public void setBanned(boolean banned) {
         this.banned = banned;
     }

src/main/java/com/comphenix/protocol/injector/GamePhase.java

@@ -22,6 +22,7 @@ package com.comphenix.protocol.injector;
  *
  * @author Kristian
  */
+@Deprecated
 public enum GamePhase {
     /**
      * Only listen for packets sent or received before a player has logged in.

src/main/java/com/comphenix/protocol/injector/ListenerManager.java

@@ -25,27 +25,25 @@ import com.comphenix.protocol.events.PacketEvent;
  *
  * @author Kristian
  */
-public interface ListenerInvoker {
+public interface ListenerManager {
+
+    boolean hasInboundListener(PacketType packetType);
+
+    boolean hasOutboundListener(PacketType packetType);
+
+    boolean hasMainThreadListener(PacketType packetType);
 
     /**
      * Invokes the given packet event for every registered listener.
      *
      * @param event - the packet event to invoke.
      */
-    void invokePacketReceiving(PacketEvent event);
+    void invokeInboundPacketListeners(PacketEvent event);
 
     /**
      * Invokes the given packet event for every registered listener.
      *
      * @param event - the packet event to invoke.
      */
-    void invokePacketSending(PacketEvent event);
-
-    /**
-     * Retrieve the associated type of a packet.
-     *
-     * @param packet - the packet.
-     * @return The packet type.
-     */
-    PacketType getPacketType(Object packet);
+    void invokeOutboundPacketListeners(PacketEvent event);
 }

src/main/java/com/comphenix/protocol/injector/NetworkProcessor.java

@@ -1,5 +1,7 @@
 package com.comphenix.protocol.injector;
 
+import java.util.Deque;
+
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.ProtocolManager;
 import com.comphenix.protocol.error.ErrorReporter;
@@ -7,7 +9,6 @@ import com.comphenix.protocol.events.NetworkMarker;
 import com.comphenix.protocol.events.PacketEvent;
 import com.comphenix.protocol.events.PacketPostListener;
 import com.comphenix.protocol.events.ScheduledPacket;
-import java.util.Deque;
 
 /**
  * Represents a processor for network markers.
@@ -43,7 +44,7 @@ public class NetworkProcessor {
             for (PacketPostListener listener : marker.getPostListeners()) {
                 try {
                     listener.onPostEvent(event);
-                } catch (OutOfMemoryError | ThreadDeath e) {
+                } catch (OutOfMemoryError e) {
                     throw e;
                 } catch (Throwable e) {
                     this.reporter.reportMinimal(listener.getPlugin(), "SentListener.run()", e);

src/main/java/com/comphenix/protocol/injector/PacketConstructor.java

@@ -172,8 +172,6 @@ public class PacketConstructor {
                         result = unwrapper.unwrapItem(values[i]);
                     } catch (OutOfMemoryError e) {
                         throw e;
-                    } catch (ThreadDeath e) {
-                        throw e;
                     } catch (Throwable e) {
                         lastException = e;
                     }

src/main/java/com/comphenix/protocol/injector/PacketFilterManager.java

@@ -1,32 +1,5 @@
 package com.comphenix.protocol.injector;
 
-import com.comphenix.protocol.AsynchronousManager;
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.PacketType.Sender;
-import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.async.AsyncFilterManager;
-import com.comphenix.protocol.error.ErrorReporter;
-import com.comphenix.protocol.error.Report;
-import com.comphenix.protocol.error.ReportType;
-import com.comphenix.protocol.events.ListenerOptions;
-import com.comphenix.protocol.events.ListenerPriority;
-import com.comphenix.protocol.events.ListeningWhitelist;
-import com.comphenix.protocol.events.NetworkMarker;
-import com.comphenix.protocol.events.PacketAdapter;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.injector.PluginVerifier.VerificationResult;
-import com.comphenix.protocol.injector.netty.WirePacket;
-import com.comphenix.protocol.injector.netty.manager.NetworkManagerInjector;
-import com.comphenix.protocol.injector.packet.PacketInjector;
-import com.comphenix.protocol.injector.packet.PacketRegistry;
-import com.comphenix.protocol.injector.player.PlayerInjectionHandler;
-import com.comphenix.protocol.injector.player.PlayerInjectionHandler.ConflictStrategy;
-import com.comphenix.protocol.utility.MinecraftReflection;
-import com.comphenix.protocol.utility.MinecraftVersion;
-import com.google.common.collect.ImmutableSet;
-import io.netty.channel.Channel;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
@@ -50,16 +23,38 @@ import org.bukkit.event.server.PluginDisableEvent;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginManager;
 
-public class PacketFilterManager implements ListenerInvoker, InternalManager {
+import com.comphenix.protocol.AsynchronousManager;
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.async.AsyncFilterManager;
+import com.comphenix.protocol.concurrent.PacketTypeListenerSet;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.ListenerOptions;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.NetworkMarker;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.injector.PluginVerifier.VerificationResult;
+import com.comphenix.protocol.injector.collection.InboundPacketListenerSet;
+import com.comphenix.protocol.injector.collection.OutboundPacketListenerSet;
+import com.comphenix.protocol.injector.collection.PacketListenerSet;
+import com.comphenix.protocol.injector.netty.WirePacket;
+import com.comphenix.protocol.injector.netty.manager.NetworkManagerInjector;
+import com.comphenix.protocol.injector.packet.PacketRegistry;
+import com.comphenix.protocol.utility.MinecraftVersion;
+import com.google.common.collect.ImmutableSet;
+
+public class PacketFilterManager implements ListenerManager, InternalManager {
 
     // plugin verifier reports
     private static final ReportType PLUGIN_VERIFIER_ERROR = new ReportType("Plugin verifier error: %s");
     private static final ReportType INVALID_PLUGIN_VERIFY = new ReportType("Plugin %s does not %s on ProtocolLib");
 
-    // listener registration reports
-    private static final ReportType UNSUPPORTED_PACKET = new ReportType(
-            "Plugin %s tried to register listener for unknown packet %s [direction: from %s]");
-
     // bukkit references
     private final Plugin plugin;
     private final Server server;
@@ -72,15 +67,14 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
     private final PluginVerifier pluginVerifier;
 
     // packet listeners
-    private final SortedPacketListenerList inboundListeners;
-    private final SortedPacketListenerList outboundListeners;
+    private final PacketTypeListenerSet mainThreadPacketTypes;
+    private final InboundPacketListenerSet inboundListeners;
+    private final OutboundPacketListenerSet outboundListeners;
 
     // only for api lookups
     private final Set<PacketListener> registeredListeners;
 
     // injectors
-    private final PacketInjector packetInjector;
-    private final PlayerInjectionHandler playerInjectionHandler;
     private final NetworkManagerInjector networkManagerInjector;
 
     // status of this manager
@@ -104,17 +98,15 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
 
         // packet listeners
         this.registeredListeners = new HashSet<>();
-        this.inboundListeners = new SortedPacketListenerList();
-        this.outboundListeners = new SortedPacketListenerList();
+        this.mainThreadPacketTypes = new PacketTypeListenerSet();
+        this.inboundListeners = new InboundPacketListenerSet(mainThreadPacketTypes, this.reporter);
+        this.outboundListeners = new OutboundPacketListenerSet(mainThreadPacketTypes, this.reporter);
 
         // injectors
         this.networkManagerInjector = new NetworkManagerInjector(
                 builder.getLibrary(),
-                builder.getServer(),
                 this,
                 builder.getReporter());
-        this.packetInjector = this.networkManagerInjector.getPacketInjector();
-        this.playerInjectionHandler = this.networkManagerInjector.getPlayerInjectionHandler();
 
         // ensure that all packet types are loaded and synced
         PacketRegistry.getClientPacketTypes();
@@ -122,7 +114,7 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
 
         // hook into all connected players
         for (Player player : this.server.getOnlinePlayers()) {
-            this.playerInjectionHandler.injectPlayer(player, ConflictStrategy.BAIL_OUT);
+        	this.networkManagerInjector.getInjector(player).inject();
         }
     }
 
@@ -164,7 +156,7 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
             // monitor listeners before doing so - they will not be able to change the event tho
             if (!filters) {
                 // ensure we are on the main thread if any listener requires that
-                if (this.playerInjectionHandler.hasMainThreadListener(packet.getType()) && !this.server.isPrimaryThread()) {
+                if (this.hasMainThreadListener(packet.getType()) && !this.server.isPrimaryThread()) {
                     NetworkMarker copy = marker; // okay fine
                     ProtocolLibrary.getScheduler().scheduleSyncDelayedTask(
                             () -> this.sendServerPacket(receiver, packet, copy, false), 1L);
@@ -173,14 +165,14 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
 
                 // construct the event and post to all monitor listeners
                 PacketEvent event = PacketEvent.fromServer(this, packet, marker, receiver, false);
-                this.outboundListeners.invokePacketSending(this.reporter, event, ListenerPriority.MONITOR);
+                this.outboundListeners.invoke(event, ListenerPriority.MONITOR);
 
                 // update the marker of the event without accidentally constructing it
                 marker = NetworkMarker.getNetworkMarker(event);
             }
 
             // process outbound
-            this.playerInjectionHandler.sendServerPacket(receiver, packet, marker, filters);
+            this.networkManagerInjector.getInjector(receiver).sendClientboundPacket(packet.getHandle(), marker, filters);
         }
     }
 
@@ -192,13 +184,7 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
     @Override
     public void sendWirePacket(Player receiver, WirePacket packet) {
         if (!this.closed) {
-            // special case - we just throw the wire packet down the pipeline without processing it
-            Channel outboundChannel = this.playerInjectionHandler.getChannel(receiver);
-            if (outboundChannel == null) {
-                throw new IllegalArgumentException("Unable to obtain connection of player " + receiver);
-            }
-
-            outboundChannel.writeAndFlush(packet);
+        	this.networkManagerInjector.getInjector(receiver).sendWirePacket(packet);
         }
     }
 
@@ -216,7 +202,7 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
     public void receiveClientPacket(Player sender, PacketContainer packet, NetworkMarker marker, boolean filters) {
         if (!this.closed) {
             // make sure we are on the main thread if any listener of the packet needs it
-            if (this.playerInjectionHandler.hasMainThreadListener(packet.getType()) && !this.server.isPrimaryThread()) {
+            if (this.hasMainThreadListener(packet.getType()) && !this.server.isPrimaryThread()) {
                 ProtocolLibrary.getScheduler().runTask(
                         () -> this.receiveClientPacket(sender, packet, marker, filters));
                 return;
@@ -226,7 +212,8 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
             // check to which listeners we need to post the packet
             if (filters) {
                 // post to all listeners
-                PacketEvent event = this.packetInjector.packetReceived(packet, sender);
+            	PacketEvent event = PacketEvent.fromClient(this.networkManagerInjector, packet, null, sender);
+                this.invokeInboundPacketListeners(event);
                 if (event.isCancelled()) {
                     return;
                 }
@@ -235,17 +222,17 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
                 nmsPacket = event.getPacket().getHandle();
             } else {
                 PacketEvent event = PacketEvent.fromClient(this, packet, marker, sender, false);
-                this.inboundListeners.invokePacketRecieving(this.reporter, event, ListenerPriority.MONITOR);
+                this.inboundListeners.invoke(event, ListenerPriority.MONITOR);
             }
 
             // post to the player inject, reset our cancel state change
-            this.playerInjectionHandler.receiveClientPacket(sender, nmsPacket);
+            this.networkManagerInjector.getInjector(sender).readServerboundPacket(nmsPacket);
         }
     }
 
     @Override
     public int getProtocolVersion(Player player) {
-        return this.playerInjectionHandler.getProtocolVersion(player);
+        return this.networkManagerInjector.getInjector(player).getProtocolVersion();
     }
 
     @Override
@@ -320,28 +307,20 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
             if (outbound != null && outbound.isEnabled()) {
                 // verification
                 this.verifyWhitelist(listener, outbound);
-                this.playerInjectionHandler.checkListener(listener);
 
                 // registration
                 this.registeredListeners.add(listener);
-                this.outboundListeners.addListener(listener, outbound);
-
-                // let the injectors know about the change as well
-                this.registerPacketListenerInInjectors(listener, outbound.getTypes());
+                this.outboundListeners.addListener(listener);
             }
 
             // register as inbound listener if anything outbound is handled
             if (inbound != null && inbound.isEnabled()) {
                 // verification
                 this.verifyWhitelist(listener, inbound);
-                this.playerInjectionHandler.checkListener(listener);
 
                 // registration
                 this.registeredListeners.add(listener);
-                this.inboundListeners.addListener(listener, inbound);
-
-                // let the injectors know about the change as well
-                this.registerPacketListenerInInjectors(listener, inbound.getTypes());
+                this.inboundListeners.addListener(listener);
             }
         }
     }
@@ -354,18 +333,12 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
 
             // remove outbound listeners (if any)
             if (outbound != null && outbound.isEnabled()) {
-                Collection<PacketType> removed = this.outboundListeners.removeListener(listener, outbound);
-                if (!removed.isEmpty()) {
-                    this.unregisterPacketListenerInInjectors(removed);
-                }
+                this.outboundListeners.removeListener(listener);
             }
 
             // remove inbound listeners (if any)
             if (inbound != null && inbound.isEnabled()) {
-                Collection<PacketType> removed = this.inboundListeners.removeListener(listener, inbound);
-                if (!removed.isEmpty()) {
-                    this.unregisterPacketListenerInInjectors(removed);
-                }
+                this.inboundListeners.removeListener(listener);
             }
         }
     }
@@ -416,12 +389,12 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
 
     @Override
     public Set<PacketType> getSendingFilterTypes() {
-        return Collections.unmodifiableSet(this.playerInjectionHandler.getSendingFilters());
+        return Collections.unmodifiableSet(this.outboundListeners.getPacketTypes());
     }
 
     @Override
     public Set<PacketType> getReceivingFilterTypes() {
-        return Collections.unmodifiableSet(this.packetInjector.getPacketHandlers());
+        return Collections.unmodifiableSet(this.inboundListeners.getPacketTypes());
     }
 
     @Override
@@ -460,18 +433,17 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
 
                 @EventHandler(priority = EventPriority.LOWEST)
                 public void handleLogin(PlayerLoginEvent event) {
-                    PacketFilterManager.this.playerInjectionHandler.updatePlayer(event.getPlayer());
+                	networkManagerInjector.getInjector(event.getPlayer()).inject();
                 }
 
                 @EventHandler(priority = EventPriority.LOWEST)
                 public void handleJoin(PlayerJoinEvent event) {
-                    PacketFilterManager.this.playerInjectionHandler.updatePlayer(event.getPlayer());
+                	networkManagerInjector.getInjector(event.getPlayer()).inject();
                 }
 
                 @EventHandler(priority = EventPriority.MONITOR)
                 public void handleQuit(PlayerQuitEvent event) {
                     PacketFilterManager.this.asyncFilterManager.removePlayer(event.getPlayer());
-                    PacketFilterManager.this.playerInjectionHandler.handleDisconnect(event.getPlayer());
                 }
 
                 @EventHandler(priority = EventPriority.MONITOR)
@@ -494,11 +466,14 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
 
             // uninject all clutter
             this.networkManagerInjector.close();
-            this.playerInjectionHandler.close();
+
+            // clear listener collections
+            this.mainThreadPacketTypes.clear();
+            this.inboundListeners.clear();
+            this.outboundListeners.clear();
 
             // cleanup
             this.registeredListeners.clear();
-            this.packetInjector.cleanupAll();
             this.asyncFilterManager.cleanupAll();
         }
     }
@@ -514,34 +489,35 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
     }
 
     @Override
-    public void invokePacketReceiving(PacketEvent event) {
+    public boolean hasInboundListener(PacketType packetType) {
+        return this.inboundListeners.containsPacketType(packetType);
+    }
+
+    @Override
+    public boolean hasOutboundListener(PacketType packetType) {
+        return this.outboundListeners.containsPacketType(packetType);
+    }
+
+    @Override
+    public boolean hasMainThreadListener(PacketType packetType) {
+        return this.mainThreadPacketTypes.contains(packetType);
+    }
+
+    @Override
+    public void invokeInboundPacketListeners(PacketEvent event) {
         if (!this.closed) {
             this.postPacketToListeners(this.inboundListeners, event, false);
         }
     }
 
     @Override
-    public void invokePacketSending(PacketEvent event) {
+    public void invokeOutboundPacketListeners(PacketEvent event) {
         if (!this.closed) {
             this.postPacketToListeners(this.outboundListeners, event, true);
         }
     }
 
-    @Override
-    public PacketType getPacketType(Object packet) {
-        if (!MinecraftReflection.isPacketClass(packet)) {
-            throw new IllegalArgumentException("Given packet is not a minecraft packet instance");
-        }
-
-        PacketType type = PacketRegistry.getPacketType(packet.getClass());
-        if (type != null) {
-            return type;
-        }
-
-        throw new IllegalArgumentException("Unable to associate given packet " + packet + " with a registered packet!");
-    }
-
-    private void postPacketToListeners(SortedPacketListenerList listeners, PacketEvent event, boolean outbound) {
+    private void postPacketToListeners(PacketListenerSet listeners, PacketEvent event, boolean outbound) {
         try {
             // append async marker if any async listener for the packet was registered
             if (this.asyncFilterManager.hasAsynchronousListeners(event)) {
@@ -549,11 +525,7 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
             }
 
             // post to sync listeners
-            if (outbound) {
-                listeners.invokePacketSending(this.reporter, event);
-            } else {
-                listeners.invokePacketRecieving(this.reporter, event);
-            }
+            listeners.invoke(event);
 
             // check if we need to post the packet to the async handler
             if (!event.isCancelled() && event.getAsyncMarker() != null && !event.getAsyncMarker().isAsyncCancelled()) {
@@ -587,39 +559,4 @@ public class PacketFilterManager implements ListenerInvoker, InternalManager {
             }
         }
     }
-
-    private void registerPacketListenerInInjectors(PacketListener listener, Collection<PacketType> packetTypes) {
-        for (PacketType packetType : packetTypes) {
-            // check the packet direction
-            if (packetType.getSender() == Sender.SERVER) {
-                // check if the packet is registered on the server side
-                if (PacketRegistry.getServerPacketTypes().contains(packetType)) {
-                    this.playerInjectionHandler.addPacketHandler(packetType, listener.getSendingWhitelist().getOptions());
-                } else {
-                    this.reporter.reportWarning(this, Report.newBuilder(UNSUPPORTED_PACKET)
-                            .messageParam(PacketAdapter.getPluginName(listener), packetType, packetType.getSender())
-                            .build());
-                }
-            } else if (packetType.getSender() == Sender.CLIENT) {
-                // check if the packet is registered on the client side
-                if (PacketRegistry.getClientPacketTypes().contains(packetType)) {
-                    this.packetInjector.addPacketHandler(packetType, listener.getReceivingWhitelist().getOptions());
-                } else {
-                    this.reporter.reportWarning(this, Report.newBuilder(UNSUPPORTED_PACKET)
-                            .messageParam(PacketAdapter.getPluginName(listener), packetType, packetType.getSender())
-                            .build());
-                }
-            }
-        }
-    }
-
-    private void unregisterPacketListenerInInjectors(Collection<PacketType> packetTypes) {
-        for (PacketType packetType : packetTypes) {
-            if (packetType.getSender() == Sender.SERVER) {
-                this.playerInjectionHandler.removePacketHandler(packetType);
-            } else if (packetType.getSender() == Sender.CLIENT) {
-                this.packetInjector.removePacketHandler(packetType);
-            }
-        }
-    }
 }

src/main/java/com/comphenix/protocol/injector/SortedPacketListenerList.java

@@ -1,229 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  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; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.injector;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.logging.Level;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.concurrency.AbstractConcurrentListenerMultimap;
-import com.comphenix.protocol.error.ErrorReporter;
-import com.comphenix.protocol.events.ListenerPriority;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.timing.TimedListenerManager;
-import com.comphenix.protocol.timing.TimedListenerManager.ListenerType;
-import com.comphenix.protocol.timing.TimedTracker;
-
-import javax.annotation.Nullable;
-
-/**
- * Registry of synchronous packet listeners.
- * 
- * @author Kristian
- */
-public final class SortedPacketListenerList extends AbstractConcurrentListenerMultimap<PacketListener> {
-    // The current listener manager
-    private TimedListenerManager timedManager = TimedListenerManager.getInstance();
-    
-    public SortedPacketListenerList() {
-        super();
-    }
-
-    /**
-     * Invokes the given packet event for every registered listener.
-     * @param reporter - the error reporter that will be used to inform about listener exceptions.
-     * @param event - the packet event to invoke.
-     */
-    public void invokePacketRecieving(ErrorReporter reporter, PacketEvent event) {
-        Collection<PrioritizedListener<PacketListener>> list = getListener(event.getPacketType());
-        
-        if (list == null)
-            return;
-
-        // The returned list is thread-safe
-        if (timedManager.isTiming()) {
-            for (PrioritizedListener<PacketListener> element : list) {
-                TimedTracker tracker = timedManager.getTracker(element.getListener(), ListenerType.SYNC_CLIENT_SIDE);
-                long token = tracker.beginTracking();
-                
-                // Measure and record the execution time
-                invokeReceivingListener(reporter, event, element);
-                tracker.endTracking(token, event.getPacketType());
-            }
-        } else {
-            for (PrioritizedListener<PacketListener> element : list) {
-                invokeReceivingListener(reporter, event, element);
-            }
-        }
-    }
-    
-    /**
-     * Invokes the given packet event for every registered listener of the given priority.
-     * @param reporter - the error reporter that will be used to inform about listener exceptions.
-     * @param event - the packet event to invoke.
-     * @param priorityFilter - the required priority for a listener to be invoked.
-     */
-    public void invokePacketRecieving(ErrorReporter reporter, PacketEvent event, ListenerPriority priorityFilter) {
-        Collection<PrioritizedListener<PacketListener>> list = getListener(event.getPacketType());
-        
-        if (list == null)
-            return;
-
-        // The returned list is thread-safe
-        if (timedManager.isTiming()) {
-            for (PrioritizedListener<PacketListener> element : list) {
-                if (element.getPriority() == priorityFilter) {
-                    TimedTracker tracker = timedManager.getTracker(element.getListener(), ListenerType.SYNC_CLIENT_SIDE);
-                    long token = tracker.beginTracking();
-                    
-                    // Measure and record the execution time
-                    invokeReceivingListener(reporter, event, element);
-                    tracker.endTracking(token, event.getPacketType());
-                }
-            }
-        } else {
-            for (PrioritizedListener<PacketListener> element : list) {
-                if (element.getPriority() == priorityFilter) {
-                    invokeReceivingListener(reporter, event, element);
-                }
-            }
-        }
-    }
-    
-    /**
-     * Invoke a particular receiving listener.
-     * @param reporter - the error reporter.
-     * @param event - the related packet event.
-     * @param element - the listener to invoke.
-     */
-    private void invokeReceivingListener(ErrorReporter reporter, PacketEvent event, PrioritizedListener<PacketListener> element) {
-        try {
-            event.setReadOnly(element.getPriority() == ListenerPriority.MONITOR);
-            element.getListener().onPacketReceiving(event);
-            
-        } catch (OutOfMemoryError | ThreadDeath e) {
-            throw e;
-        } catch (Throwable e) {
-            // Minecraft doesn't want your Exception.
-            reporter.reportMinimal(element.getListener().getPlugin(), "onPacketReceiving(PacketEvent)", e, 
-                    event.getPacket().getHandle());
-        }
-    }
-    
-    /**
-     * Invokes the given packet event for every registered listener.
-     * @param reporter - the error reporter that will be used to inform about listener exceptions.
-     * @param event - the packet event to invoke.
-     */
-    public void invokePacketSending(ErrorReporter reporter, PacketEvent event) {
-        invokePacketSending(reporter, event, null);
-    }
-    
-    /**
-     * Invokes the given packet event for every registered listener of the given priority.
-     * @param reporter - the error reporter that will be used to inform about listener exceptions.
-     * @param event - the packet event to invoke.
-     * @param priorityFilter - the priority for a listener to be invoked. If null is provided, every registered listener will be invoked
-     */
-    public void invokePacketSending(ErrorReporter reporter, PacketEvent event, @Nullable ListenerPriority priorityFilter) {
-        invokeUnpackedPacketSending(reporter, event, priorityFilter);
-        if (event.getPacketType() == PacketType.Play.Server.BUNDLE && !event.isCancelled()) {
-            // unpack the bundle and invoke for each packet in the bundle
-            Iterable<PacketContainer> packets = event.getPacket().getPacketBundles().read(0);
-            List<PacketContainer> outPackets = new ArrayList<>();
-            for (PacketContainer subPacket : packets) {
-                if(subPacket == null) {
-                    ProtocolLibrary.getPlugin().getLogger().log(Level.WARNING, "Failed to invoke packet event " + (priorityFilter == null ? "" : ("with priority " + priorityFilter)) + " in bundle because bundle contains null packet: " + packets, new Throwable());
-                    continue;
-                }
-                PacketEvent subPacketEvent = PacketEvent.fromServer(this, subPacket, event.getNetworkMarker(), event.getPlayer());
-                invokeUnpackedPacketSending(reporter, subPacketEvent, priorityFilter);
-
-                if (!subPacketEvent.isCancelled()) {
-                    // if the packet event has been cancelled, the packet will be removed from the bundle
-                    PacketContainer packet = subPacketEvent.getPacket();
-                    if(packet == null) {
-                        ProtocolLibrary.getPlugin().getLogger().log(Level.WARNING, "null packet container returned for " + subPacketEvent, new Throwable());
-                    } else if(packet.getHandle() == null) {
-                        ProtocolLibrary.getPlugin().getLogger().log(Level.WARNING, "null packet handle returned for " + subPacketEvent, new Throwable());
-                    } else {
-                        outPackets.add(packet);
-                    }
-                }
-            }
-
-            if (packets.iterator().hasNext()) {
-                event.getPacket().getPacketBundles().write(0, outPackets);
-            } else {
-                // cancel entire packet if each individual packet has been cancelled
-                event.setCancelled(true);
-            }
-        }
-    }
-
-    private void invokeUnpackedPacketSending(ErrorReporter reporter, PacketEvent event, @org.jetbrains.annotations.Nullable ListenerPriority priorityFilter) {
-        Collection<PrioritizedListener<PacketListener>> list = getListener(event.getPacketType());
-
-        if (list == null)
-            return;
-
-        if (timedManager.isTiming()) {
-            for (PrioritizedListener<PacketListener> element : list) {
-                if (priorityFilter == null || element.getPriority() == priorityFilter) {
-                    TimedTracker tracker = timedManager.getTracker(element.getListener(), ListenerType.SYNC_SERVER_SIDE);
-                    long token = tracker.beginTracking();
-
-                    // Measure and record the execution time
-                    invokeSendingListener(reporter, event, element);
-                    tracker.endTracking(token, event.getPacketType());
-                }
-            }
-        } else {
-            for (PrioritizedListener<PacketListener> element : list) {
-                if (priorityFilter == null || element.getPriority() == priorityFilter) {
-                    invokeSendingListener(reporter, event, element);
-                }
-            }
-        }
-    }
-
-    /**
-     * Invoke a particular sending listener.
-     * @param reporter - the error reporter.
-     * @param event - the related packet event.
-     * @param element - the listener to invoke.
-     */
-    private void invokeSendingListener(ErrorReporter reporter, PacketEvent event, PrioritizedListener<PacketListener> element) {
-        try {
-            event.setReadOnly(element.getPriority() == ListenerPriority.MONITOR);
-            element.getListener().onPacketSending(event);
-            
-        } catch (OutOfMemoryError | ThreadDeath e) {
-            throw e;
-        } catch (Throwable e) {
-            // Minecraft doesn't want your Exception.
-            reporter.reportMinimal(element.getListener().getPlugin(), "onPacketSending(PacketEvent)", e, 
-                    event.getPacket().getHandle());
-        }
-    }
-}

src/main/java/com/comphenix/protocol/injector/StructureCache.java

@@ -17,26 +17,40 @@
 
 package com.comphenix.protocol.injector;
 
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
 import java.security.PublicKey;
+import java.util.List;
 import java.util.Map;
-import java.util.Objects;
+import java.util.Optional;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.function.Function;
 import java.util.function.Supplier;
 
 import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.injector.packet.KnownPacketData;
 import com.comphenix.protocol.injector.packet.PacketRegistry;
+import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.reflect.StructureModifier;
 import com.comphenix.protocol.reflect.accessors.Accessors;
 import com.comphenix.protocol.reflect.accessors.ConstructorAccessor;
+import com.comphenix.protocol.reflect.accessors.FieldAccessor;
+import com.comphenix.protocol.reflect.fuzzy.FuzzyFieldContract;
+import com.comphenix.protocol.reflect.fuzzy.FuzzyMethodContract;
 import com.comphenix.protocol.reflect.instances.DefaultInstances;
+import com.comphenix.protocol.reflect.instances.InstanceCreator;
 import com.comphenix.protocol.utility.ByteBuddyFactory;
 import com.comphenix.protocol.utility.MinecraftMethods;
 import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.utility.MinecraftRegistryAccess;
 import com.comphenix.protocol.utility.MinecraftVersion;
 import com.comphenix.protocol.utility.ZeroBuffer;
 import com.comphenix.protocol.wrappers.WrappedChatComponent;
+import com.comphenix.protocol.wrappers.WrappedStreamCodec;
+
 import com.google.common.base.Preconditions;
 import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
 import net.bytebuddy.dynamic.DynamicType;
 import net.bytebuddy.dynamic.loading.ClassLoadingStrategy.Default;
 import net.bytebuddy.implementation.FixedValue;
@@ -50,57 +64,147 @@ import net.bytebuddy.matcher.ElementMatchers;
 public class StructureCache {
 
     // Structure modifiers
-    private static final Map<Class<?>, Supplier<Object>> PACKET_INSTANCE_CREATORS = new ConcurrentHashMap<>();
+    private static final Map<Class<?>, Optional<Supplier<Object>>> CACHED_INSTANCE_CREATORS = new ConcurrentHashMap<>();
     private static final Map<PacketType, StructureModifier<Object>> STRUCTURE_MODIFIER_CACHE = new ConcurrentHashMap<>();
 
     // packet data serializer which always returns an empty nbt tag compound
     private static final Object TRICK_INIT_LOCK = new Object();
     private static boolean TRICK_TRIED = false;
 
-    private static ConstructorAccessor TRICKED_DATA_SERIALIZER_BASE;
-    private static ConstructorAccessor TRICKED_DATA_SERIALIZER_JSON;
+    private static Function<ByteBuf, Object> TRICKED_DATA_SERIALIZER_BASE;
+    private static Supplier<Object> TRICKED_DATA_SERIALIZER_JSON;
 
+    /**
+     * @deprecated Renamed to {@link #newInstance(Class)}.
+     */
+    @Deprecated
     public static Object newPacket(Class<?> packetClass) {
-        Supplier<Object> packetConstructor = PACKET_INSTANCE_CREATORS.computeIfAbsent(packetClass, clazz -> {
-            // prefer construction via PacketDataSerializer constructor on 1.17 and above
-            if (MinecraftVersion.CAVES_CLIFFS_1.atOrAbove()) {
-                ConstructorAccessor serializerAccessor = Accessors.getConstructorAccessorOrNull(
-                        clazz,
-                        MinecraftReflection.getPacketDataSerializerClass());
-                if (serializerAccessor != null) {
-                    // check if the method is possible
-                    if (tryInitTrickDataSerializer()) {
+        return newInstance(packetClass);
+    }
+
+    public static boolean canCreateInstance(Class<?> clazz) {
+        Optional<Supplier<Object>> creator = CACHED_INSTANCE_CREATORS.computeIfAbsent(clazz, x ->
+            Optional.ofNullable(determineBestCreator(clazz)));
+        return creator.isPresent();
+    }
+
+    public static Object newInstance(Class<?> clazz) {
+        Optional<Supplier<Object>> creator = CACHED_INSTANCE_CREATORS.computeIfAbsent(clazz, x ->
+            Optional.ofNullable(determineBestCreator(clazz)));
+        if (!creator.isPresent()) {
+            throw new IllegalArgumentException("Cannot create instance of " + clazz);
+        }
+        return creator.get().get();
+    }
+
+    static Supplier<Object> determineBestCreator(Class<?> clazz) {
+        // certain packets are singletons which can't really be created
+        if (MinecraftReflection.isPacketClass(clazz)) {
+            FuzzyReflection fuzzy = FuzzyReflection.fromClass(clazz, false);
+            List<Field> singletons = fuzzy.getFieldList(FuzzyFieldContract.newBuilder()
+                .typeExact(clazz)
+                .requireModifier(Modifier.STATIC)
+                .requireModifier(Modifier.PUBLIC)
+                .build());
+            if (singletons.size() == 1) {
+                FieldAccessor accessor = Accessors.getFieldAccessor(singletons.get(0));
+                try {
+                    accessor.get(null);
+                    return () -> accessor.get(null);
+                } catch (Exception ignored) {
+                }
+            }
+        }
+
+        try {
+            InstanceCreator creator = InstanceCreator.forClass(clazz);
+            if (creator.get() != null) {
+                return creator;
+            }
+        } catch (Exception ignored) {
+        }
+
+        WrappedStreamCodec streamCodec = PacketRegistry.getStreamCodec(clazz);
+
+        // use the new stream codec for versions above 1.20.5 if possible
+        if (streamCodec != null && tryInitTrickDataSerializer()) {
+            try {
+                // first try with the base accessor
+                Object serializer = TRICKED_DATA_SERIALIZER_BASE.apply(new ZeroBuffer());
+                streamCodec.decode(serializer); // throwaway instance, for testing
+
+                // method is working
+                return () -> streamCodec.decode(serializer);
+            } catch (Exception ex) {
+                try {
+                    byte[] data;
+                    if (clazz.equals(PacketType.Play.Server.MAP_CHUNK.getPacketClass())) {
+                        data = KnownPacketData.MAP_CHUNK;
+                    } else if (clazz.equals(PacketType.Play.Server.SCOREBOARD_OBJECTIVE.getPacketClass())) {
+                        data = KnownPacketData.SCOREBOARD_OBJECTIVE;
+                    } else {
+                        throw ex;
+                    }
+
+                    Object serializer = TRICKED_DATA_SERIALIZER_BASE.apply(Unpooled.copiedBuffer(data));
+                    streamCodec.decode(serializer);
+
+                    return () -> {
+                        ((ByteBuf) serializer).readerIndex(0);
+                        return streamCodec.decode(serializer);
+                    };
+                } catch (Exception ignored1) {
+                    try {
+                        // try with the json accessor
+                        Object serializer = TRICKED_DATA_SERIALIZER_JSON.get();
+                        streamCodec.decode(serializer); // throwaway instance, for testing
+
+                        // method is working
+                        return () -> streamCodec.decode(serializer);
+                    } catch (Exception ignored2) {
+                        // shrug, fall back to default behaviour
+                    }
+                }
+            }
+        }
+
+        // prefer construction via PacketDataSerializer constructor on 1.17 and above
+        if (MinecraftVersion.CAVES_CLIFFS_1.atOrAbove()) {
+            ConstructorAccessor serializerAccessor = Accessors.getConstructorAccessorOrNull(
+                clazz,
+                MinecraftReflection.getPacketDataSerializerClass());
+            if (serializerAccessor != null) {
+                // check if the method is possible
+                if (tryInitTrickDataSerializer()) {
+                    try {
+                        // first try with the base accessor
+                        Object serializer = TRICKED_DATA_SERIALIZER_BASE.apply(new ZeroBuffer());
+                        serializerAccessor.invoke(serializer); // throwaway instance, for testing
+
+                        // method is working
+                        return () -> serializerAccessor.invoke(serializer);
+                    } catch (Exception ignored) {
                         try {
-                            // first try with the base accessor
-                            Object serializer = TRICKED_DATA_SERIALIZER_BASE.invoke(new ZeroBuffer());
+                            // try with the json accessor
+                            Object serializer = TRICKED_DATA_SERIALIZER_JSON.get();
                             serializerAccessor.invoke(serializer); // throwaway instance, for testing
 
                             // method is working
                             return () -> serializerAccessor.invoke(serializer);
-                        } catch (Exception exception) {
-                            try {
-                                // try with the json accessor
-                                Object serializer = TRICKED_DATA_SERIALIZER_JSON.invoke(new ZeroBuffer());
-                                serializerAccessor.invoke(serializer); // throwaway instance, for testing
-
-                                // method is working
-                                return () -> serializerAccessor.invoke(serializer);
-                            } catch (Exception ignored) {
-                                // shrug, fall back to default behaviour
-                            }
+                        } catch (Exception ignored1) {
+                            // shrug, fall back to default behaviour
                         }
                     }
                 }
             }
+        }
 
-            // try via DefaultInstances as fallback
-            return () -> {
-                Object packetInstance = DefaultInstances.DEFAULT.create(clazz);
-                Objects.requireNonNull(packetInstance, "Unable to create packet instance for class " + clazz);
-                return packetInstance;
-            };
-        });
-        return packetConstructor.get();
+        Object instance = DefaultInstances.DEFAULT.create(clazz);
+        if (instance == null) {
+            return null;
+        }
+
+        return () -> DefaultInstances.DEFAULT.create(clazz);
     }
 
     /**
@@ -118,7 +222,9 @@ public class StructureCache {
      *
      * @param packetType - packet type.
      * @return A structure modifier.
+     * @deprecated use {@link #getStructure(PacketType)} instead.
      */
+    @Deprecated
     public static StructureModifier<Object> getStructure(Class<?> packetType) {
         // Get the ID from the class
         PacketType type = PacketRegistry.getPacketType(packetType);
@@ -154,7 +260,61 @@ public class StructureCache {
      */
     public static Object newNullDataSerializer() {
         tryInitTrickDataSerializer();
-        return TRICKED_DATA_SERIALIZER_BASE.invoke(new ZeroBuffer());
+        return TRICKED_DATA_SERIALIZER_BASE.apply(new ZeroBuffer());
+    }
+
+    static void initTrickDataSerializer() {
+        Optional<Class<?>> registryByteBuf = MinecraftReflection.getRegistryFriendlyByteBufClass();
+
+        // create an empty instance of a nbt tag compound / text compound that we can re-use when needed
+        Object textCompound = WrappedChatComponent.fromText("").getHandle();
+        Object compound = Accessors.getConstructorAccessor(MinecraftReflection.getNBTCompoundClass()).invoke();
+
+        // base builder which intercepts a few methods
+        DynamicType.Builder<?> baseBuilder = ByteBuddyFactory.getInstance()
+            .createSubclass(registryByteBuf.orElse(MinecraftReflection.getPacketDataSerializerClass()))
+            .name(MinecraftMethods.class.getPackage().getName() + ".ProtocolLibTricksNmsDataSerializerBase")
+            .method(ElementMatchers.takesArguments(MinecraftReflection.getNBTReadLimiterClass())
+                .and(ElementMatchers.returns(ElementMatchers.isSubTypeOf(MinecraftReflection.getNBTBaseClass()))))
+            .intercept(FixedValue.value(compound))
+            .method(ElementMatchers.returns(MinecraftReflection.getIChatBaseComponentClass()))
+            .intercept(FixedValue.value(textCompound))
+            .method(ElementMatchers.returns(PublicKey.class).and(ElementMatchers.takesNoArguments()))
+            .intercept(FixedValue.nullValue());
+        Class<?> serializerBase = baseBuilder.make()
+            .load(ByteBuddyFactory.getInstance().getClassLoader(), Default.INJECTION)
+            .getLoaded();
+
+        if (registryByteBuf.isPresent()) {
+            ConstructorAccessor accessor = Accessors.getConstructorAccessor(FuzzyReflection.fromClass(serializerBase, true).getConstructor(FuzzyMethodContract.newBuilder()
+                    .parameterDerivedOf(ByteBuf.class)
+                    .parameterDerivedOf(MinecraftReflection.getRegistryAccessClass())
+                    .build()));
+            TRICKED_DATA_SERIALIZER_BASE = (buf) -> accessor.invoke(buf, MinecraftRegistryAccess.get());
+        } else {
+            ConstructorAccessor accessor = Accessors.getConstructorAccessor(serializerBase, ByteBuf.class);
+            TRICKED_DATA_SERIALIZER_BASE = accessor::invoke;
+        }
+
+        //xtended builder which intercepts the read string method as well
+        Class<?> withStringIntercept = baseBuilder
+            .name(MinecraftMethods.class.getPackage().getName() + ".ProtocolLibTricksNmsDataSerializerJson")
+            .method(ElementMatchers.returns(String.class).and(ElementMatchers.takesArguments(int.class)))
+            .intercept(FixedValue.value("{}"))
+            .make()
+            .load(ByteBuddyFactory.getInstance().getClassLoader(), Default.INJECTION)
+            .getLoaded();
+
+        if (registryByteBuf.isPresent()) {
+            ConstructorAccessor accessor = Accessors.getConstructorAccessor(FuzzyReflection.fromClass(withStringIntercept).getConstructor(FuzzyMethodContract.newBuilder()
+                    .parameterDerivedOf(ByteBuf.class)
+                    .parameterDerivedOf(MinecraftReflection.getRegistryAccessClass())
+                    .build()));
+            TRICKED_DATA_SERIALIZER_JSON = () -> accessor.invoke(new ZeroBuffer(), MinecraftRegistryAccess.get());
+        } else {
+            ConstructorAccessor accessor = Accessors.getConstructorAccessor(withStringIntercept, ByteBuf.class);
+            TRICKED_DATA_SERIALIZER_JSON = () -> accessor.invoke(new ZeroBuffer());
+        }
     }
 
     /**
@@ -172,43 +332,13 @@ public class StructureCache {
             }
 
             try {
-                // create an empty instance of a nbt tag compound / text compound that we can re-use when needed
-                Object textCompound = WrappedChatComponent.fromText("").getHandle();
-                Object compound = Accessors.getConstructorAccessor(MinecraftReflection.getNBTCompoundClass()).invoke();
-                // base builder which intercepts a few methods
-                DynamicType.Builder<?> baseBuilder = ByteBuddyFactory.getInstance()
-                        .createSubclass(MinecraftReflection.getPacketDataSerializerClass())
-                        .name(MinecraftMethods.class.getPackage().getName() + ".ProtocolLibTricksNmsDataSerializerBase")
-                        .method(ElementMatchers.returns(MinecraftReflection.getNBTCompoundClass())
-                                .and(ElementMatchers.takesArguments(MinecraftReflection.getNBTReadLimiterClass())))
-                        .intercept(FixedValue.value(compound))
-                        .method(ElementMatchers.returns(MinecraftReflection.getIChatBaseComponentClass()))
-                        .intercept(FixedValue.value(textCompound))
-                        .method(ElementMatchers.returns(PublicKey.class).and(ElementMatchers.takesNoArguments()))
-                        .intercept(FixedValue.nullValue());
-                Class<?> serializerBase = baseBuilder.make()
-                        .load(ByteBuddyFactory.getInstance().getClassLoader(), Default.INJECTION)
-                        .getLoaded();
-                TRICKED_DATA_SERIALIZER_BASE = Accessors.getConstructorAccessor(serializerBase, ByteBuf.class);
-
-                // extended builder which intercepts the read string method as well
-                Class<?> withStringIntercept = baseBuilder
-                        .name(MinecraftMethods.class.getPackage().getName() + ".ProtocolLibTricksNmsDataSerializerJson")
-                        .method(ElementMatchers.returns(String.class).and(ElementMatchers.takesArguments(int.class)))
-                        .intercept(FixedValue.value("{}"))
-                        .make()
-                        .load(ByteBuddyFactory.getInstance().getClassLoader(), Default.INJECTION)
-                        .getLoaded();
-                TRICKED_DATA_SERIALIZER_JSON = Accessors.getConstructorAccessor(withStringIntercept, ByteBuf.class);
-
-                // worked
+                initTrickDataSerializer();
                 return true;
             } catch (Exception ignored) {
             } finally {
                 TRICK_TRIED = true;
             }
 
-            // didn't work
             return false;
         }
     }

src/main/java/com/comphenix/protocol/injector/collection/InboundPacketListenerSet.java

@@ -0,0 +1,33 @@
+package com.comphenix.protocol.injector.collection;
+
+import com.comphenix.protocol.concurrent.PacketTypeListenerSet;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+
+public class InboundPacketListenerSet extends PacketListenerSet {
+
+    public InboundPacketListenerSet(PacketTypeListenerSet mainThreadPacketTypes, ErrorReporter errorReporter) {
+        super(mainThreadPacketTypes, errorReporter);
+    }
+
+    @Override
+    protected ListeningWhitelist getListeningWhitelist(PacketListener packetListener) {
+        return packetListener.getReceivingWhitelist();
+    }
+
+    @Override
+    protected void invokeListener(PacketEvent event, PacketListener listener) {
+        try {
+            event.setReadOnly(listener.getReceivingWhitelist().getPriority() == ListenerPriority.MONITOR);
+            listener.onPacketReceiving(event);
+        } catch (OutOfMemoryError e) {
+            throw e;
+        } catch (Throwable e) {
+            errorReporter.reportMinimal(listener.getPlugin(), "onPacketReceiving(PacketEvent)", e,
+                    event.getPacket().getHandle());
+        }
+    }
+}

src/main/java/com/comphenix/protocol/injector/collection/OutboundPacketListenerSet.java

@@ -0,0 +1,82 @@
+package com.comphenix.protocol.injector.collection;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.annotation.Nullable;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.concurrent.PacketTypeListenerSet;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+
+public class OutboundPacketListenerSet extends PacketListenerSet {
+
+    public OutboundPacketListenerSet(PacketTypeListenerSet mainThreadPacketTypes, ErrorReporter errorReporter) {
+        super(mainThreadPacketTypes, errorReporter);
+    }
+
+    @Override
+    protected ListeningWhitelist getListeningWhitelist(PacketListener packetListener) {
+        return packetListener.getSendingWhitelist();
+    }
+
+    @Override
+    public void invoke(PacketEvent event, @Nullable ListenerPriority priorityFilter) {
+        super.invoke(event, priorityFilter);
+
+        if (event.getPacketType() == PacketType.Play.Server.BUNDLE && !event.isCancelled()) {
+            // unpack the bundle and invoke for each packet in the bundle
+            Iterable<PacketContainer> packets = event.getPacket().getPacketBundles().read(0);
+            List<PacketContainer> outPackets = new ArrayList<>();
+            for (PacketContainer subPacket : packets) {
+                // ignore null packets as the will throw an error in the packet encoder
+                if (subPacket == null) {
+                    continue;
+                }
+
+                PacketEvent subPacketEvent = PacketEvent.fromServer(this, subPacket, event.getNetworkMarker(),
+                        event.getPlayer());
+                super.invoke(subPacketEvent, priorityFilter);
+
+                
+                // if the packet has been cancelled, the packet will not be add to the bundle
+                if (subPacketEvent.isCancelled()) {
+                    continue;
+                }
+
+                PacketContainer packet = subPacketEvent.getPacket();
+                if (packet == null || packet.getHandle() == null) {
+                    // super.invoke() should prevent us from getting new null packet so we just ignore it here
+                    continue;
+                } else {
+                    outPackets.add(packet);
+                }
+            }
+
+            if (packets.iterator().hasNext()) {
+                event.getPacket().getPacketBundles().write(0, outPackets);
+            } else {
+                // cancel entire packet if each individual packet has been cancelled
+                event.setCancelled(true);
+            }
+        }
+    }
+
+    @Override
+    protected void invokeListener(PacketEvent event, PacketListener listener) {
+        try {
+            event.setReadOnly(listener.getSendingWhitelist().getPriority() == ListenerPriority.MONITOR);
+            listener.onPacketSending(event);
+        } catch (OutOfMemoryError e) {
+            throw e;
+        } catch (Throwable e) {
+            errorReporter.reportMinimal(listener.getPlugin(), "onPacketSending(PacketEvent)", e,
+                    event.getPacket().getHandle());
+        }
+    }
+}

src/main/java/com/comphenix/protocol/injector/collection/PacketListenerSet.java

@@ -0,0 +1,142 @@
+package com.comphenix.protocol.injector.collection;
+
+import java.util.Iterator;
+import java.util.Set;
+
+import javax.annotation.Nullable;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.PacketType.Sender;
+import com.comphenix.protocol.concurrent.PacketTypeListenerSet;
+import com.comphenix.protocol.concurrent.PacketTypeMultiMap;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.ListenerOptions;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.injector.packet.PacketRegistry;
+import com.comphenix.protocol.timing.TimingListenerType;
+import com.comphenix.protocol.timing.TimingTrackerManager;
+import com.google.common.collect.ImmutableSet;
+
+public abstract class PacketListenerSet {
+
+    private static final ReportType REPORT_UNSUPPORTED_PACKET = new ReportType(
+            "Plugin %s tried to register listener for unknown packet %s [direction: from %s]");
+    private static final ReportType REPORT_NULL_PACKET = new ReportType(
+            "Plugin %s tried to set a packet or packet handle to null [type: %s, direction: %s]");
+
+    protected final PacketTypeMultiMap<PacketListener> map = new PacketTypeMultiMap<>();
+
+    protected final PacketTypeListenerSet mainThreadPacketTypes;
+    protected final ErrorReporter errorReporter;
+
+    public PacketListenerSet(PacketTypeListenerSet mainThreadPacketTypes, ErrorReporter errorReporter) {
+        this.mainThreadPacketTypes = mainThreadPacketTypes;
+        this.errorReporter = errorReporter;
+    }
+
+    protected abstract ListeningWhitelist getListeningWhitelist(PacketListener packetListener);
+
+    public void addListener(PacketListener packetListener) {
+        ListeningWhitelist listeningWhitelist = getListeningWhitelist(packetListener);
+
+        for (Iterator<PacketType> packet = listeningWhitelist.getTypes().iterator(); packet.hasNext();) {
+            PacketType packetType = packet.next();
+
+            Set<PacketType> supportedPacketTypes = (packetType.getSender() == Sender.SERVER)
+                    ? PacketRegistry.getServerPacketTypes()
+                    : PacketRegistry.getClientPacketTypes();
+
+            if (!supportedPacketTypes.contains(packetType)) {
+                this.errorReporter.reportWarning(this, Report.newBuilder(REPORT_UNSUPPORTED_PACKET)
+                        .messageParam(PacketAdapter.getPluginName(packetListener), packetType, packetType.getSender())
+                        .build());
+                
+                // remove unknown packet types
+                packet.remove();
+            }
+        }
+
+        this.map.put(listeningWhitelist, packetListener);
+
+        Set<ListenerOptions> options = listeningWhitelist.getOptions();
+        for (PacketType packetType : listeningWhitelist.getTypes()) {
+            if (this.mainThreadPacketTypes != null && !packetType.isAsyncForced()) {
+                boolean isOutboundSync = packetType.getSender() == Sender.SERVER
+                        && !options.contains(ListenerOptions.ASYNC);
+                boolean isInboundSync = packetType.getSender() == Sender.CLIENT
+                        && options.contains(ListenerOptions.SYNC);
+                if (isOutboundSync || isInboundSync) {
+                    this.mainThreadPacketTypes.add(packetType, packetListener);
+                }
+            }
+        }
+    }
+
+    public void removeListener(PacketListener packetListener) {
+        ListeningWhitelist listeningWhitelist = getListeningWhitelist(packetListener);
+        this.map.remove(listeningWhitelist, packetListener);
+
+        if (this.mainThreadPacketTypes != null) {
+            for (PacketType packetType : listeningWhitelist.getTypes()) {
+                this.mainThreadPacketTypes.remove(packetType, packetListener);
+            }
+        }
+    }
+
+    public final boolean containsPacketType(PacketType packetType) {
+        return this.map.contains(packetType);
+    }
+
+    public final ImmutableSet<PacketType> getPacketTypes() {
+        return this.map.getPacketTypes();
+    }
+
+    public void invoke(PacketEvent event) {
+        this.invoke(event, null);
+    }
+
+    public void invoke(PacketEvent event, @Nullable ListenerPriority priorityFilter) {
+        Iterable<PacketListener> listeners = this.map.get(event.getPacketType());
+
+        for (PacketListener listener : listeners) {
+            ListeningWhitelist listeningWhitelist = listener.getReceivingWhitelist();
+            if (priorityFilter != null && listeningWhitelist.getPriority() != priorityFilter) {
+                continue;
+            }
+
+            PacketContainer originalPacket = event.getPacket();
+            if (originalPacket == null || originalPacket.getHandle() == null) {
+                // ignore null packets, they are evil and shouldn't exist
+                break;
+            }
+
+            // invoke packet listener
+            TimingTrackerManager
+                    .get(listener, event.isServerPacket() ? TimingListenerType.SYNC_OUTBOUND : TimingListenerType.SYNC_INBOUND)
+                    .track(event.getPacketType(), () -> invokeListener(event, listener));
+            
+            // check for new null packets
+            PacketContainer newPacket = event.getPacket();
+            if (newPacket == null || newPacket.getHandle() == null) {
+                errorReporter.reportWarning(this, Report.newBuilder(REPORT_NULL_PACKET)
+                        .messageParam(PacketAdapter.getPluginName(listener), originalPacket.getType(), originalPacket.getType().getSender())
+                        .build());
+                // reset packet to previous packet
+                event.setPacket(originalPacket);
+            }
+        }
+    }
+
+    protected abstract void invokeListener(PacketEvent event, PacketListener listener);
+
+    public void clear() {
+        this.map.clear();
+    }
+}

src/main/java/com/comphenix/protocol/injector/netty/ChannelListener.java

@@ -1,70 +0,0 @@
-package com.comphenix.protocol.injector.netty;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.error.ErrorReporter;
-import com.comphenix.protocol.events.NetworkMarker;
-import com.comphenix.protocol.events.PacketEvent;
-
-/**
- * Represents a listener for received or sent packets.
- *
- * @author Kristian
- */
-public interface ChannelListener {
-
-    /**
-     * Invoked when a packet is being sent to the client.
-     * <p>
-     * This is invoked on the main thread.
-     *
-     * @param injector - the channel injector.
-     * @param packet   - the packet.
-     * @param marker   - the network marker.
-     * @return The packet even that was passed to the listeners, with a possible packet change, or NULL.
-     */
-    PacketEvent onPacketSending(Injector injector, Object packet, NetworkMarker marker);
-
-    /**
-     * Invoked when a packet is being received from a client.
-     * <p>
-     * This is invoked on an asynchronous worker thread.
-     *
-     * @param injector - the channel injector.
-     * @param packet   - the packet.
-     * @param marker   - the associated network marker, if any.
-     * @return The packet even that was passed to the listeners, with a possible packet change, or NULL.
-     */
-    PacketEvent onPacketReceiving(Injector injector, Object packet, NetworkMarker marker);
-
-    /**
-     * Determine if there is a packet listener for the given packet.
-     *
-     * @param packetClass - the packet class to check.
-     * @return TRUE if there is such a listener, FALSE otherwise.
-     */
-    boolean hasListener(Class<?> packetClass);
-
-    /**
-     * Determine if there is a server packet listener that must be executed on the main thread.
-     *
-     * @param packetClass - the packet class to check.
-     * @return TRUE if there is, FALSE otherwise.
-     */
-    boolean hasMainThreadListener(Class<?> packetClass);
-
-    boolean hasMainThreadListener(PacketType type);
-
-    /**
-     * Retrieve the current error reporter.
-     *
-     * @return The error reporter.
-     */
-    ErrorReporter getReporter();
-
-    /**
-     * Determine if debug mode is enabled.
-     *
-     * @return TRUE if it is, FALSE otherwise.
-     */
-    boolean isDebug();
-}

src/main/java/com/comphenix/protocol/injector/netty/Injector.java

@@ -1,8 +1,12 @@
 package com.comphenix.protocol.injector.netty;
 
+import java.net.SocketAddress;
+
+import org.bukkit.entity.Player;
+
+import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.PacketType.Protocol;
 import com.comphenix.protocol.events.NetworkMarker;
-import org.bukkit.entity.Player;
 
 /**
  * Represents an injected client connection.
@@ -11,6 +15,8 @@ import org.bukkit.entity.Player;
  */
 public interface Injector {
 
+    SocketAddress getAddress();
+
     /**
      * Retrieve the current protocol version of the player.
      *
@@ -22,12 +28,8 @@ public interface Injector {
      * Inject the current channel.
      * <p>
      * Note that only active channels can be injected.
-     *
-     * @return TRUE if we injected the channel, false if we could not inject or it was already injected.
      */
-    boolean inject();
-
-    void uninject();
+    void inject();
 
     /**
      * Close the current injector.
@@ -41,32 +43,22 @@ public interface Injector {
      * @param marker   - the network marker.
      * @param filtered - whether or not the packet is filtered.
      */
-    void sendServerPacket(Object packet, NetworkMarker marker, boolean filtered);
+    void sendClientboundPacket(Object packet, NetworkMarker marker, boolean filtered);
 
-    void receiveClientPacket(Object packet);
+    void readServerboundPacket(Object packet);
+
+    void sendWirePacket(WirePacket packet);
+
+    void disconnect(String message);
 
     /**
-     * Retrieve the current protocol state.
+     * Retrieve the current protocol state. Note that since 1.20.2 the client and server direction can be in different
+     * protocol states.
      *
+     * @param sender the side for which the state should be resolved.
      * @return The current protocol.
      */
-    Protocol getCurrentProtocol();
-
-    /**
-     * Retrieve the network marker associated with a given packet.
-     *
-     * @param packet - the packet.
-     * @return The network marker.
-     */
-    NetworkMarker getMarker(Object packet);
-
-    /**
-     * Associate a given network marker with a specific packet.
-     *
-     * @param packet - the NMS packet.
-     * @param marker - the associated marker.
-     */
-    void saveMarker(Object packet, NetworkMarker marker);
+    Protocol getCurrentProtocol(PacketType.Sender sender);
 
     /**
      * Retrieve the current player or temporary player associated with the injector.
@@ -82,7 +74,7 @@ public interface Injector {
      */
     void setPlayer(Player player);
 
-    void disconnect(String message);
+    boolean isConnected();
 
     /**
      * Determine if the channel has already been injected.

src/main/java/com/comphenix/protocol/injector/netty/channel/ChannelProtocolUtil.java

@@ -0,0 +1,209 @@
+package com.comphenix.protocol.injector.netty.channel;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.List;
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.reflect.FuzzyReflection;
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.FieldAccessor;
+import com.comphenix.protocol.reflect.accessors.MethodAccessor;
+import com.comphenix.protocol.reflect.fuzzy.FuzzyFieldContract;
+import com.comphenix.protocol.utility.MinecraftReflection;
+
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.util.AttributeKey;
+
+@SuppressWarnings("unchecked")
+final class ChannelProtocolUtil {
+
+    public static final BiFunction<Channel, PacketType.Sender, PacketType.Protocol> PROTOCOL_RESOLVER;
+
+    static {
+        Class<?> networkManagerClass = MinecraftReflection.getNetworkManagerClass();
+        List<Field> attributeKeys = FuzzyReflection.fromClass(networkManagerClass, true).getFieldList(FuzzyFieldContract.newBuilder()
+                .typeExact(AttributeKey.class)
+                .requireModifier(Modifier.STATIC)
+                .declaringClassExactType(networkManagerClass)
+                .build());
+
+        BiFunction<Channel, PacketType.Sender, Object> baseResolver = null;
+        if (attributeKeys.isEmpty()) {
+            // since 1.20.5 the protocol is stored as final field in de-/encoder
+            baseResolver = new Post1_20_5WrappedResolver();
+        } else if (attributeKeys.size() == 1) {
+            // if there is only one attribute key we can assume it's the correct one (1.8 - 1.20.1)
+            Object protocolKey = Accessors.getFieldAccessor(attributeKeys.get(0)).get(null);
+            baseResolver = new Pre1_20_2DirectResolver((AttributeKey<Object>) protocolKey);
+        } else if (attributeKeys.size() > 1) {
+            // most likely 1.20.2+: 1 protocol key per protocol direction
+            AttributeKey<Object> serverBoundKey = null;
+            AttributeKey<Object> clientBoundKey = null;
+
+            for (Field keyField : attributeKeys) {
+                AttributeKey<Object> key = (AttributeKey<Object>) Accessors.getFieldAccessor(keyField).get(null);
+                if (key.name().equals("protocol")) {
+                    // legacy (pre 1.20.2 name) - fall back to the old behaviour
+                    baseResolver = new Pre1_20_2DirectResolver(key);
+                    break;
+                }
+
+                if (key.name().contains("protocol")) {
+                    // one of the two protocol keys for 1.20.2
+                    if (key.name().contains("server")) {
+                        serverBoundKey = key;
+                    } else {
+                        clientBoundKey = key;
+                    }
+                }
+            }
+
+            if (baseResolver == null) {
+                if ((serverBoundKey == null || clientBoundKey == null)) {
+                    // neither pre 1.20.2 key nor 1.20.2+ keys are available
+                    throw new ExceptionInInitializerError("Unable to resolve protocol state attribute keys");
+                } else {
+                    baseResolver = new Post1_20_2WrappedResolver(serverBoundKey, clientBoundKey);
+                }
+            }
+        } else {
+            throw new ExceptionInInitializerError("Unable to resolve protocol state attribute key(s)");
+        }
+
+        // decorate the base resolver by wrapping its return value into our packet type value
+        PROTOCOL_RESOLVER = baseResolver.andThen(protocol -> PacketType.Protocol.fromVanilla((Enum<?>) protocol));
+    }
+
+    private static final class Pre1_20_2DirectResolver implements BiFunction<Channel, PacketType.Sender, Object> {
+
+        private final AttributeKey<Object> attributeKey;
+
+        public Pre1_20_2DirectResolver(AttributeKey<Object> attributeKey) {
+            this.attributeKey = attributeKey;
+        }
+
+        @Override
+        public Object apply(Channel channel, PacketType.Sender sender) {
+            return channel.attr(this.attributeKey).get();
+        }
+    }
+
+    private static final class Post1_20_2WrappedResolver implements BiFunction<Channel, PacketType.Sender, Object> {
+
+        private final AttributeKey<Object> serverBoundKey;
+        private final AttributeKey<Object> clientBoundKey;
+
+        // lazy initialized when needed
+        private FieldAccessor protocolAccessor;
+
+        public Post1_20_2WrappedResolver(AttributeKey<Object> serverBoundKey, AttributeKey<Object> clientBoundKey) {
+            this.serverBoundKey = serverBoundKey;
+            this.clientBoundKey = clientBoundKey;
+        }
+
+        @Override
+        public Object apply(Channel channel, PacketType.Sender sender) {
+            AttributeKey<Object> key = this.getKeyForSender(sender);
+            Object codecData = channel.attr(key).get();
+            if (codecData == null) {
+                return null;
+            }
+
+            FieldAccessor protocolAccessor = this.getProtocolAccessor(codecData.getClass());
+            return protocolAccessor.get(codecData);
+        }
+
+        private AttributeKey<Object> getKeyForSender(PacketType.Sender sender) {
+            switch (sender) {
+                case SERVER:
+                    return this.clientBoundKey;
+                case CLIENT:
+                    return this.serverBoundKey;
+                default:
+                    throw new IllegalArgumentException("Illegal packet sender " + sender.name());
+            }
+        }
+
+        private FieldAccessor getProtocolAccessor(Class<?> codecClass) {
+            if (this.protocolAccessor == null) {
+                Class<?> enumProtocolClass = MinecraftReflection.getEnumProtocolClass();
+                this.protocolAccessor = Accessors.getFieldAccessor(codecClass, enumProtocolClass, true);
+            }
+
+            return this.protocolAccessor;
+        }
+    }
+
+    /**
+     * Since 1.20.5 the protocol is stored as final field in de-/encoder
+     */
+    private static final class Post1_20_5WrappedResolver implements BiFunction<Channel, PacketType.Sender, Object> {
+
+        // lazy initialized when needed
+        private Function<Object, Object> serverProtocolAccessor;
+        private Function<Object, Object> clientProtocolAccessor;
+
+        @Override
+        public Object apply(Channel channel, PacketType.Sender sender) {
+            Class<? extends ChannelHandler> handlerClass = this.getHandlerClass(sender)
+                    .asSubclass(ChannelHandler.class);
+
+            ChannelHandlerContext handlerContext = channel.pipeline().context(handlerClass);
+            if (handlerContext == null) {
+                return null;
+            }
+
+            Function<Object, Object> protocolAccessor = this.getProtocolAccessor(handlerClass, sender);
+            return protocolAccessor.apply(handlerContext.handler());
+        }
+
+        private Function<Object, Object> getProtocolAccessor(Class<?> codecHandler, PacketType.Sender sender) {
+            switch (sender) {
+                case SERVER:
+                    if (this.serverProtocolAccessor == null) {
+                        this.serverProtocolAccessor = getProtocolAccessor(codecHandler);
+                    }
+                    return this.serverProtocolAccessor;
+                case CLIENT:
+                    if (this.clientProtocolAccessor == null) {
+                        this.clientProtocolAccessor = getProtocolAccessor(codecHandler);
+                    }
+                    return this.clientProtocolAccessor;
+                default:
+                    throw new IllegalArgumentException("Illegal packet sender " + sender.name());
+            }
+        }
+
+        private Class<?> getHandlerClass(PacketType.Sender sender) {
+            switch (sender) {
+                case SERVER:
+                    return MinecraftReflection.getMinecraftClass("network.PacketEncoder");
+                case CLIENT:
+                    return MinecraftReflection.getMinecraftClass("network.PacketDecoder");
+                default:
+                    throw new IllegalArgumentException("Illegal packet sender " + sender.name());
+            }
+        }
+
+        private Function<Object, Object> getProtocolAccessor(Class<?> codecHandler) {
+            Class<?> protocolInfoClass = MinecraftReflection.getProtocolInfoClass();
+
+            MethodAccessor protocolAccessor = Accessors.getMethodAccessor(FuzzyReflection
+                    .fromClass(protocolInfoClass).getMethodByReturnTypeAndParameters("id",
+                            MinecraftReflection.getEnumProtocolClass(), new Class[0]));
+
+            FieldAccessor protocolInfoAccessor = Accessors.getFieldAccessor(codecHandler, protocolInfoClass, true);
+
+            // get ProtocolInfo from handler and get EnumProtocol of ProtocolInfo
+            return (handler) -> {
+                Object protocolInfo = protocolInfoAccessor.get(handler);
+                return protocolAccessor.invoke(protocolInfo);
+            };
+        }
+    }
+}

src/main/java/com/comphenix/protocol/injector/netty/channel/EmptyInjector.java

@@ -1,9 +1,14 @@
 package com.comphenix.protocol.injector.netty.channel;
 
+import java.net.SocketAddress;
+
+import org.bukkit.entity.Player;
+
+import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.PacketType.Protocol;
 import com.comphenix.protocol.events.NetworkMarker;
 import com.comphenix.protocol.injector.netty.Injector;
-import org.bukkit.entity.Player;
+import com.comphenix.protocol.injector.netty.WirePacket;
 
 final class EmptyInjector implements Injector {
 
@@ -15,18 +20,21 @@ final class EmptyInjector implements Injector {
         this.player = player;
     }
 
+    @Override
+    public SocketAddress getAddress() {
+        if (this.player != null) {
+            return this.player.getAddress();
+        }
+        return null;
+    }
+
     @Override
     public int getProtocolVersion() {
         return Integer.MIN_VALUE;
     }
 
     @Override
-    public boolean inject() {
-        return false;
-    }
-
-    @Override
-    public void uninject() {
+    public void inject() {
     }
 
     @Override
@@ -34,27 +42,26 @@ final class EmptyInjector implements Injector {
     }
 
     @Override
-    public void sendServerPacket(Object packet, NetworkMarker marker, boolean filtered) {
+    public void sendClientboundPacket(Object packet, NetworkMarker marker, boolean filtered) {
     }
 
     @Override
-    public void receiveClientPacket(Object packet) {
+    public void readServerboundPacket(Object packet) {
     }
 
     @Override
-    public Protocol getCurrentProtocol() {
+    public void sendWirePacket(WirePacket packet) {
+    }
+
+    @Override
+    public void disconnect(String message) {
+    }
+
+    @Override
+    public Protocol getCurrentProtocol(PacketType.Sender sender) {
         return Protocol.HANDSHAKING;
     }
 
-    @Override
-    public NetworkMarker getMarker(Object packet) {
-        return null;
-    }
-
-    @Override
-    public void saveMarker(Object packet, NetworkMarker marker) {
-    }
-
     @Override
     public Player getPlayer() {
         return this.player;
@@ -66,7 +73,8 @@ final class EmptyInjector implements Injector {
     }
 
     @Override
-    public void disconnect(String message) {
+    public boolean isConnected() {
+        return false;
     }
 
     @Override

src/main/java/com/comphenix/protocol/injector/netty/channel/InboundPacketInterceptor.java

@@ -1,44 +1,53 @@
 package com.comphenix.protocol.injector.netty.channel;
 
-import com.comphenix.protocol.injector.netty.ChannelListener;
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLogger;
+import com.comphenix.protocol.PacketType.Protocol;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.injector.packet.PacketRegistry;
 import com.comphenix.protocol.utility.MinecraftReflection;
+
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 
 final class InboundPacketInterceptor extends ChannelInboundHandlerAdapter {
 
     private final NettyChannelInjector injector;
-    private final ChannelListener channelListener;
 
-    public InboundPacketInterceptor(NettyChannelInjector injector, ChannelListener listener) {
+    public InboundPacketInterceptor(NettyChannelInjector injector) {
         this.injector = injector;
-        this.channelListener = listener;
     }
 
     @Override
     public void channelRead(ChannelHandlerContext ctx, Object msg) {
-        Class<?> messageClass = msg.getClass();
-        if (this.shouldInterceptMessage(messageClass)) {
-            // process the login if the packet is one before posting the packet to any handler to provide "real" data
-            // the method invocation will do nothing if the packet is not a login packet
-            this.injector.tryProcessLogin(msg);
-
-            // check if there are any listeners bound for the packet - if not just post the packet down the pipeline
-            if (!this.channelListener.hasListener(messageClass)) {
+        if (MinecraftReflection.isPacketClass(msg)) {
+            // try get packet type
+            PacketType.Protocol protocol = this.injector.getInboundProtocol();
+            if (protocol == Protocol.UNKNOWN) {
+                ProtocolLogger.debug("skipping unknown inbound protocol for {0}", msg.getClass());
                 ctx.fireChannelRead(msg);
                 return;
             }
 
-            // call all inbound listeners
-            this.injector.processInboundPacket(ctx, msg, messageClass);
+            PacketType packetType = PacketRegistry.getPacketType(protocol, msg.getClass());
+            if (packetType == null) {
+                ProtocolLogger.debug("skipping unknown inbound packet type for {0}", msg.getClass());
+                ctx.fireChannelRead(msg);
+                return;
+            }
+
+            // check if there are any listeners bound for the packet - if not just send the
+            // packet down the pipeline
+            if (!this.injector.hasInboundListener(packetType)) {
+                ctx.fireChannelRead(msg);
+                return;
+            }
+
+            // don't invoke next handler and transfer packet to injector for further processing
+            this.injector.processInbound(ctx, new PacketContainer(packetType, msg));
         } else {
             // just pass the message down the pipeline
             ctx.fireChannelRead(msg);
         }
     }
-
-    private boolean shouldInterceptMessage(Class<?> messageClass) {
-        // only intercept minecraft packets and no garbage from other stuff in the channel
-        return MinecraftReflection.getPacketClass().isAssignableFrom(messageClass);
-    }
 }

src/main/java/com/comphenix/protocol/injector/netty/channel/InboundProtocolReader.java

@@ -0,0 +1,27 @@
+package com.comphenix.protocol.injector.netty.channel;
+
+import com.comphenix.protocol.PacketType;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+
+public class InboundProtocolReader extends ChannelInboundHandlerAdapter {
+
+    private final NettyChannelInjector injector;
+
+    private PacketType.Protocol protocol = null;
+
+    public InboundProtocolReader(NettyChannelInjector injector) {
+        this.injector = injector;
+    }
+
+    public PacketType.Protocol getProtocol() {
+        return protocol;
+    }
+
+    @Override
+    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
+        this.protocol = this.injector.getCurrentProtocol(PacketType.Sender.CLIENT);
+        ctx.fireChannelRead(msg);
+    }
+}

src/main/java/com/comphenix/protocol/injector/netty/channel/InjectionFactory.java

@@ -14,21 +14,25 @@
  */
 package com.comphenix.protocol.injector.netty.channel;
 
+import java.util.Map.Entry;
+import java.util.concurrent.ConcurrentMap;
+
+import javax.annotation.Nonnull;
+
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+
 import com.comphenix.protocol.error.ErrorReporter;
-import com.comphenix.protocol.injector.netty.ChannelListener;
+import com.comphenix.protocol.injector.ListenerManager;
 import com.comphenix.protocol.injector.netty.Injector;
-import com.comphenix.protocol.injector.temporary.MinimalInjector;
 import com.comphenix.protocol.injector.temporary.TemporaryPlayerFactory;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.utility.MinecraftFields;
 import com.comphenix.protocol.utility.MinecraftReflection;
 import com.google.common.collect.MapMaker;
+
 import io.netty.channel.Channel;
-import java.util.concurrent.ConcurrentMap;
-import javax.annotation.Nonnull;
-import org.bukkit.Server;
-import org.bukkit.entity.Player;
-import org.bukkit.plugin.Plugin;
+import io.netty.channel.ChannelHandler;
 
 /**
  * Represents an injector factory.
@@ -39,24 +43,23 @@ import org.bukkit.plugin.Plugin;
  */
 public class InjectionFactory {
 
-    // This should work as long as the injectors are, uh, injected
     private final ConcurrentMap<String, Injector> nameLookup = new MapMaker().weakValues().makeMap();
     private final ConcurrentMap<Player, Injector> playerLookup = new MapMaker().weakKeys().weakValues().makeMap();
 
     // bukkit stuff
     private final Plugin plugin;
-    private final Server server;
 
     // protocol lib stuff
     private final ErrorReporter errorReporter;
+    private final ListenerManager listenerManager;
 
     // state of the factory
     private boolean closed;
 
-    public InjectionFactory(Plugin plugin, Server server, ErrorReporter errorReporter) {
+    public InjectionFactory(Plugin plugin, ErrorReporter errorReporter, ListenerManager listenerManager) {
         this.plugin = plugin;
-        this.server = server;
         this.errorReporter = errorReporter;
+        this.listenerManager = listenerManager;
     }
 
     /**
@@ -72,11 +75,10 @@ public class InjectionFactory {
      * Construct or retrieve a channel injector from an existing Bukkit player.
      *
      * @param player   - the existing Bukkit player.
-     * @param listener - the listener.
      * @return A new injector, an existing injector associated with this player, or a closed injector.
      */
     @Nonnull
-    public Injector fromPlayer(Player player, ChannelListener listener) {
+    public Injector fromPlayer(Player player) {
         if (this.closed) {
             return new EmptyInjector(player);
         }
@@ -114,10 +116,9 @@ public class InjectionFactory {
             // construct a new injector as it seems like we have none yet
             injector = new NettyChannelInjector(
                     player,
-                    this.server,
                     networkManager,
                     channel,
-                    listener,
+                    this.listenerManager,
                     this,
                     this.errorReporter);
             this.cacheInjector(player, injector);
@@ -155,31 +156,27 @@ public class InjectionFactory {
      * Construct a new channel injector for the given channel.
      *
      * @param channel       - the channel.
-     * @param listener      - the listener.
-     * @param playerFactory - a temporary player creator.
      * @return The channel injector, or a closed injector.
      */
     @Nonnull
-    public Injector fromChannel(Channel channel, ChannelListener listener, TemporaryPlayerFactory playerFactory) {
+    public Injector fromChannel(Channel channel) {
         if (this.closed) {
             return EmptyInjector.WITHOUT_PLAYER;
         }
 
-        Object netManager = this.findNetworkManager(channel);
-        Player temporaryPlayer = playerFactory.createTemporaryPlayer(this.server);
+        Object networkManager = this.findNetworkManager(channel);
+        Player temporaryPlayer = TemporaryPlayerFactory.createTemporaryPlayer();
 
         NettyChannelInjector injector = new NettyChannelInjector(
                 temporaryPlayer,
-                this.server,
-                netManager,
+                networkManager,
                 channel,
-                listener,
+                this.listenerManager,
                 this,
                 this.errorReporter);
-        MinimalInjector minimalInjector = new NettyChannelMinimalInjector(injector);
 
         // Initialize temporary player
-        TemporaryPlayerFactory.setInjectorInPlayer(temporaryPlayer, minimalInjector);
+        TemporaryPlayerFactory.setInjectorForPlayer(temporaryPlayer, injector);
         return injector;
     }
 
@@ -235,9 +232,9 @@ public class InjectionFactory {
      * @return The associated injector, or NULL if this is a Bukkit player.
      */
     private NettyChannelInjector getTemporaryInjector(Player player) {
-        MinimalInjector injector = TemporaryPlayerFactory.getInjectorFromPlayer(player);
-        if (injector instanceof NettyChannelMinimalInjector) {
-            return ((NettyChannelMinimalInjector) injector).getInjector();
+        Injector injector = TemporaryPlayerFactory.getInjectorFromPlayer(player);
+        if (injector instanceof NettyChannelInjector) {
+            return (NettyChannelInjector) injector;
         }
 
         return null;
@@ -250,11 +247,12 @@ public class InjectionFactory {
      * @return The network manager.
      */
     private Object findNetworkManager(Channel channel) {
-        // Find the network manager
-        Object networkManager = NettyChannelInjector.findChannelHandler(channel,
-                MinecraftReflection.getNetworkManagerClass());
-        if (networkManager != null) {
-            return networkManager;
+        Class<?> networkManagerClass = MinecraftReflection.getNetworkManagerClass();
+
+        for (Entry<String, ChannelHandler> entry : channel.pipeline()) {
+            if (networkManagerClass.isAssignableFrom(entry.getValue().getClass())) {
+                return entry.getValue();
+            }
         }
 
         throw new IllegalArgumentException("Unable to find NetworkManager in " + channel);

src/main/java/com/comphenix/protocol/injector/netty/channel/NettyChannelInjector.java

@@ -2,96 +2,89 @@ package com.comphenix.protocol.injector.netty.channel;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
-import java.util.Collections;
-import java.util.HashSet;
+import java.net.SocketAddress;
 import java.util.Map;
-import java.util.Map.Entry;
-import java.util.NoSuchElementException;
 import java.util.Set;
 import java.util.WeakHashMap;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
 
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.PacketType.Protocol;
 import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.ProtocolLogger;
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.error.Report;
 import com.comphenix.protocol.error.ReportType;
 import com.comphenix.protocol.events.NetworkMarker;
+import com.comphenix.protocol.events.PacketContainer;
 import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.injector.ListenerManager;
 import com.comphenix.protocol.injector.NetworkProcessor;
-import com.comphenix.protocol.injector.netty.ChannelListener;
 import com.comphenix.protocol.injector.netty.Injector;
+import com.comphenix.protocol.injector.netty.WirePacket;
+import com.comphenix.protocol.injector.packet.PacketRegistry;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.reflect.accessors.Accessors;
 import com.comphenix.protocol.reflect.accessors.FieldAccessor;
 import com.comphenix.protocol.reflect.fuzzy.FuzzyFieldContract;
-import com.comphenix.protocol.utility.*;
+import com.comphenix.protocol.utility.MinecraftProtocolVersion;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.utility.MinecraftVersion;
 import com.comphenix.protocol.wrappers.WrappedGameProfile;
+
 import io.netty.channel.Channel;
-import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelPipeline;
 import io.netty.channel.EventLoop;
 import io.netty.util.AttributeKey;
-import org.bukkit.Server;
-import org.bukkit.entity.Player;
 
 public class NettyChannelInjector implements Injector {
 
-    // an accessor used when we're unable to retrieve the actual packet field in an outbound packet send
-    private static final FieldAccessor NO_OP_ACCESSOR = new FieldAccessor() {
-        @Override
-        public Object get(Object instance) {
-            return null;
-        }
-
-        @Override
-        public void set(Object instance, Object value) {
-        }
-
-        @Override
-        public Field getField() {
-            return null;
-        }
-    };
-
-    private static final String INTERCEPTOR_NAME = "protocol_lib_inbound_interceptor";
+    private static final String INBOUND_INTERCEPTOR_NAME = "protocol_lib_inbound_interceptor";
+    private static final String INBOUND_PROTOCOL_GETTER_NAME = "protocol_lib_inbound_protocol_getter";
     private static final String WIRE_PACKET_ENCODER_NAME = "protocol_lib_wire_packet_encoder";
 
     // all registered channel handlers to easier make sure we unregister them all from the pipeline
-    private static final String[] PROTOCOL_LIB_HANDLERS = new String[]{
-            WIRE_PACKET_ENCODER_NAME, INTERCEPTOR_NAME
+    private static final String[] NETTY_HANDLER_NAMES = new String[]{
+            WIRE_PACKET_ENCODER_NAME, INBOUND_INTERCEPTOR_NAME, INBOUND_PROTOCOL_GETTER_NAME
     };
 
     private static final ReportType REPORT_CANNOT_SEND_PACKET = new ReportType("Unable to send packet %s to %s");
+    private static final ReportType REPORT_CANNOT_SEND_WRITE_PACKET = new ReportType("Unable to send wire packet %s to %s");
+    private static final ReportType REPORT_CANNOT_READ_PACKET = new ReportType("Unable to read packet %s for %s");
+    private static final ReportType REPORT_CANNOT_DISCONNECT = new ReportType("Unable to disconnect %s for %s");
 
     private static final WirePacketEncoder WIRE_PACKET_ENCODER = new WirePacketEncoder();
     private static final Map<Class<?>, FieldAccessor> PACKET_ACCESSORS = new ConcurrentHashMap<>(16, 0.9f);
 
-    private static final Class<?> LOGIN_PACKET_START_CLASS = PacketType.Login.Client.START.getPacketClass();
-    private static final Class<?> PACKET_PROTOCOL_CLASS = PacketType.Handshake.Client.SET_PROTOCOL.getPacketClass();
-
+    // use random attribute name because they need to be unique and would throw on reload
     private static final AttributeKey<Integer> PROTOCOL_VERSION = AttributeKey.valueOf(getRandomKey());
     private static final AttributeKey<NettyChannelInjector> INJECTOR = AttributeKey.valueOf(getRandomKey());
 
-    // lazy initialized fields, if we don't need them we don't bother about them
-    private static FieldAccessor LOGIN_PROFILE_ACCESSOR;
-    private static FieldAccessor PROTOCOL_VERSION_ACCESSOR;
+    static NettyChannelInjector findInjector(Channel channel) {
+        return channel.attr(INJECTOR).get();
+    }
 
-    // bukkit stuff
-    private final Server server;
+    private static String getRandomKey() {
+        return "ProtocolLib-" + ThreadLocalRandom.current().nextLong();
+    }
 
     // protocol lib stuff we need
     private final ErrorReporter errorReporter;
+    private final InjectionFactory injectionFactory;
+    private final ListenerManager listenerManager;
     private final NetworkProcessor networkProcessor;
+    private final PacketListenerInvoker listenerInvoker;
 
     // references
     private final Object networkManager;
-    private final Channel wrappedChannel;
-    private final ChannelListener channelListener;
-    private final InjectionFactory injectionFactory;
+    private final Channel channel;
 
     private final FieldAccessor channelField;
 
@@ -101,46 +94,44 @@ public class NettyChannelInjector implements Injector {
     protected final ThreadLocal<Boolean> processedPackets = ThreadLocal.withInitial(() -> Boolean.FALSE);
 
     // status of this injector
-    private volatile boolean closed = false;
+    private final AtomicBoolean closed = new AtomicBoolean(false);
     private volatile boolean injected = false;
 
     // information about the player belonging to this injector
     private String playerName;
-    private Player resolvedPlayer;
+    private Player player;
 
     // lazy initialized fields, if we don't need them we don't bother about them
-    private Object playerConnection;
-    private FieldAccessor protocolAccessor;
+    private volatile InboundProtocolReader inboundProtocolReader;
 
     public NettyChannelInjector(
             Player player,
-            Server server,
-            Object netManager,
+            Object networkManager,
             Channel channel,
-            ChannelListener listener,
+            ListenerManager listenerManager,
             InjectionFactory injector,
             ErrorReporter errorReporter
     ) {
         // bukkit stuff
-        this.server = server;
-        this.resolvedPlayer = player;
+        this.player = player;
 
         // protocol lib stuff
         this.errorReporter = errorReporter;
         this.networkProcessor = new NetworkProcessor(errorReporter);
+        this.listenerInvoker = new PacketListenerInvoker(networkManager);
 
         // references
-        this.networkManager = netManager;
-        this.wrappedChannel = channel;
-        this.channelListener = listener;
+        this.networkManager = networkManager;
+        this.channel = channel;
+        this.listenerManager = listenerManager;
         this.injectionFactory = injector;
 
         // register us into the channel
-        this.wrappedChannel.attr(INJECTOR).set(this);
+        this.channel.attr(INJECTOR).set(this);
 
         // read the channel field from the network manager given to this method
         // we re-read this field every time as plugins/spigot forks might give us different network manager types
-        Field channelField = FuzzyReflection.fromObject(netManager, true).getField(FuzzyFieldContract.newBuilder()
+        Field channelField = FuzzyReflection.fromObject(networkManager, true).getField(FuzzyFieldContract.newBuilder()
                 .typeExact(Channel.class)
                 .banModifier(Modifier.STATIC)
                 .build());
@@ -149,112 +140,110 @@ public class NettyChannelInjector implements Injector {
         // hook here into the close future to be 100% sure that this injector gets closed when the channel we wrap gets closed
         // normally we listen to the disconnect event, but there is a very small period of time, between the login and actual
         // join that is not covered by the disconnect event and may lead to unexpected injector states...
-        this.wrappedChannel.closeFuture().addListener(future -> this.close());
+        this.channel.closeFuture().addListener(future -> this.close());
     }
 
-    static NettyChannelInjector findInjector(Channel channel) {
-        return channel.attr(INJECTOR).get();
-    }
-
-    static Object findChannelHandler(Channel channel, Class<?> type) {
-        for (Entry<String, ChannelHandler> entry : channel.pipeline()) {
-            if (type.isAssignableFrom(entry.getValue().getClass())) {
-                return entry.getValue();
-            }
-        }
-        return null;
-    }
-
-    private static String getRandomKey() {
-        return "ProtocolLib-" + ThreadLocalRandom.current().nextLong();
-    }
-
-    private static boolean hasProtocolLibHandler(Channel channel) {
-        for (String handler : PROTOCOL_LIB_HANDLERS) {
-            if (channel.pipeline().get(handler) != null) {
-                return true;
-            }
-        }
-        return false;
+    @Override
+    public SocketAddress getAddress() {
+        return this.channel.remoteAddress();
     }
 
     @Override
     public int getProtocolVersion() {
-        Integer protocolVersion = this.wrappedChannel.attr(PROTOCOL_VERSION).get();
+        Integer protocolVersion = this.channel.attr(PROTOCOL_VERSION).get();
         return protocolVersion == null ? MinecraftProtocolVersion.getCurrentVersion() : protocolVersion;
     }
 
     @Override
-    public boolean inject() {
-        // we only do this on the channel event loop to prevent blocking the main server thread
-        // and to be sure that the netty pipeline view we get is up-to-date
-        if (this.wrappedChannel.eventLoop().inEventLoop()) {
-            // ensure that we should actually inject into the channel
-            if (this.closed || this.wrappedChannel instanceof ByteBuddyGenerated || !this.wrappedChannel.isActive()) {
-                return false;
-            }
-
-            // check here if we need to rewrite the channel field and do so
-            // minecraft overrides the channel field when the channel actually becomes active, so we need to ensure that our
-            // proxied channel is always on that field - therefore this rewrite is event before we check if we're already
-            // injected into the channel
-            this.rewriteChannelField();
-
-            // check if we already injected into the channel
-            if (hasProtocolLibHandler(this.wrappedChannel)) {
-                return false;
-            }
-
-            // inject our handlers
-            this.wrappedChannel.pipeline().addAfter("encoder", WIRE_PACKET_ENCODER_NAME, WIRE_PACKET_ENCODER);
-            this.wrappedChannel.pipeline().addAfter(
-                    "decoder",
-                    INTERCEPTOR_NAME,
-                    new InboundPacketInterceptor(this, this.channelListener));
-
-            this.injected = true;
-            return true;
-        } else {
-            // re-run in event loop, return false as we cannot be sure if the injection actually worked
-            this.ensureInEventLoop(this::inject);
-            return false;
+    public void inject() {
+        // ensure we are in the channel's event loop to be "thread-safe" within netty
+        // and our own code
+        if (!this.channel.eventLoop().inEventLoop()) {
+            channel.eventLoop().execute(this::inject);
+            return;
         }
+
+        // don't need to inject if injector or channel got closed
+        if (this.closed.get() || !this.channel.isActive()) {
+            return;
+        }
+
+        // wrap channel inside the NetworkMananger to proxy write calls to our
+        // processOutbound method, this way we try to minimize the amount of thread
+        // jumps from event loop to minecraft main thread in order to process packets in
+        // main thread
+        Object networkManangerChannel = this.channelField.get(this.networkManager);
+        if (!(networkManangerChannel instanceof NettyChannelProxy)) {
+            EventLoop proxyEventLoop = new NettyEventLoopProxy(this.channel.eventLoop(), this);
+            Channel proxyChannel = new NettyChannelProxy(this.channel, proxyEventLoop, this);
+            this.channelField.set(this.networkManager, proxyChannel);
+        }
+
+        ChannelPipeline pipeline = this.channel.pipeline();
+
+        // since 1.20.5 the en-/decoder is renamed to out-/inbound_config when the
+        // channel is waiting for the next protocol phase (after terminal packet)
+        String encoderName = pipeline.get("outbound_config") != null
+                ? "outbound_config"
+                : "encoder";
+        String decoderName = pipeline.get("inbound_config") != null
+                ? "inbound_config"
+                : "decoder";
+
+        // try to add wire packet encoder
+        if (pipeline.context(WIRE_PACKET_ENCODER_NAME) == null) {
+            pipeline.addAfter(encoderName, WIRE_PACKET_ENCODER_NAME, WIRE_PACKET_ENCODER);
+        }
+
+        // try to add protocol reader, this is necessary because the en-/decoder will
+        // remove or reconfigure the protocol for terminal since 1.20.2+
+        if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove() && pipeline.context(INBOUND_PROTOCOL_GETTER_NAME) == null) {
+            this.inboundProtocolReader = new InboundProtocolReader(this);
+            pipeline.addBefore(decoderName, INBOUND_PROTOCOL_GETTER_NAME, this.inboundProtocolReader);
+        }
+
+        // try to add inbound packet interceptor
+        if (pipeline.context(INBOUND_INTERCEPTOR_NAME) == null) {
+            pipeline.addAfter(decoderName, INBOUND_INTERCEPTOR_NAME, new InboundPacketInterceptor(this));
+        }
+
+        // mark injector as injected
+        this.injected = true;
     }
 
-    @Override
-    public void uninject() {
-        // ensure that we injected into the channel before trying to remove anything from it
-        if (this.injected) {
-            // uninject on the event loop to ensure the instant visibility of the change and prevent blocks of other threads
-            if (this.wrappedChannel.eventLoop().inEventLoop()) {
-                this.injected = false;
+    private void uninject() {
+        // ensure we are in the channel's event loop to be "thread-safe" within netty
+        // and our own code
+        if (!this.channel.eventLoop().inEventLoop()) {
+            channel.eventLoop().execute(this::uninject);
+            return;
+        }
 
-                // remove known references to us
-                this.wrappedChannel.attr(INJECTOR).remove();
-                this.channelField.set(this.networkManager, this.wrappedChannel);
+        // replace wrapped channel in NetworkManager with original channel
+        this.channelField.set(this.networkManager, this.channel);
 
-                for (String handler : PROTOCOL_LIB_HANDLERS) {
-                    try {
-                        this.wrappedChannel.pipeline().remove(handler);
-                    } catch (NoSuchElementException ignored) {
-                        // ignore that one, probably an edge case
-                    }
-                }
-            } else {
-                this.ensureInEventLoop(this::uninject);
+        // remove all ProtocolLib netty handler
+        ChannelPipeline pipeline = this.channel.pipeline();
+        for (String handlerName : NETTY_HANDLER_NAMES) {
+            if (pipeline.context(handlerName) != null) {
+                pipeline.remove(handlerName);
             }
         }
+
+        // mark injector as uninjected
+        this.injected = false;
     }
 
     @Override
     public void close() {
         // ensure that the injector wasn't close before
-        if (!this.closed) {
-            this.closed = true;
-
+        if (this.closed.compareAndSet(false, true)) {
             // remove all of our references from the channel
             this.uninject();
 
+            // remove any outgoing references
+            this.channel.attr(INJECTOR).remove();
+
             // cleanup
             this.savedMarkers.clear();
             this.skippedPackets.clear();
@@ -265,9 +254,9 @@ public class NettyChannelInjector implements Injector {
     }
 
     @Override
-    public void sendServerPacket(Object packet, NetworkMarker marker, boolean filtered) {
-        // do not send the packet if this injector was already closed / is not injected yet
-        if (this.closed || !this.injected) {
+    public void sendClientboundPacket(Object packet, NetworkMarker marker, boolean filtered) {
+        // ignore call if the injector is closed or not injected
+        if (this.closed.get() || !this.injected) {
             return;
         }
 
@@ -277,17 +266,12 @@ public class NettyChannelInjector implements Injector {
         }
 
         // save the given packet marker and send the packet
-        this.saveMarker(packet, marker);
+        if (marker != null) {
+            this.savedMarkers.put(packet, marker);
+        }
+
         try {
-            if (this.resolvedPlayer instanceof ByteBuddyGenerated) {
-                MinecraftMethods.getNetworkManagerHandleMethod().invoke(this.networkManager, packet);
-            } else {
-                // ensure that the player is properly connected before sending
-                Object playerConnection = this.getPlayerConnection();
-                if (playerConnection != null) {
-                    MinecraftMethods.getSendPacketMethod().invoke(playerConnection, packet);
-                }
-            }
+            this.listenerInvoker.send(packet);
         } catch (Exception exception) {
             this.errorReporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_SEND_PACKET)
                     .messageParam(packet, this.playerName)
@@ -297,91 +281,99 @@ public class NettyChannelInjector implements Injector {
     }
 
     @Override
-    public void receiveClientPacket(Object packet) {
-        // do not do that if we're not injected or this injector was closed
-        if (this.closed || !this.injected) {
+    public void readServerboundPacket(Object packet) {
+        // ignore call if the injector is closed or not injected
+        if (this.closed.get() || !this.injected) {
+            return;
+        }
+        
+        this.ensureInEventLoop(() -> {
+            try {
+                // try to invoke the method, this should normally not fail
+                this.listenerInvoker.read(packet);
+            } catch (Exception exception) {
+                this.errorReporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_READ_PACKET)
+                        .messageParam(packet, this.playerName)
+                        .error(exception)
+                        .build());
+            }
+        });
+    }
+
+    @Override
+    public void sendWirePacket(WirePacket packet) {
+        // ignore call if the injector is closed or not injected
+        if (this.closed.get() || !this.injected) {
             return;
         }
 
-        Runnable receiveAction = () -> {
+        this.ensureInEventLoop(() -> {
             try {
-                // try to invoke the method, this should normally not fail
-                MinecraftMethods.getNetworkManagerReadPacketMethod().invoke(this.networkManager, null, packet);
+                this.channel.writeAndFlush(packet);
             } catch (Exception exception) {
-                // 99% the user gave wrong information to the server
-                this.errorReporter.reportMinimal(this.injectionFactory.getPlugin(), "receiveClientPacket", exception);
+                this.errorReporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_SEND_WRITE_PACKET)
+                        .messageParam(packet, this.playerName)
+                        .error(exception)
+                        .build());
             }
-        };
+        });
+    }
 
-        // execute the action on the event loop rather than any thread which we should potentially not block
-        if (this.wrappedChannel.eventLoop().inEventLoop()) {
-            receiveAction.run();
-        } else {
-            this.ensureInEventLoop(receiveAction);
+    @Override
+    public void disconnect(String message) {
+        // ignore call if the injector is closed or not injected
+        if (this.closed.get() || !this.injected) {
+            return;
+        }
+
+        try {
+            this.listenerInvoker.disconnect(message);
+        } catch (Exception exception) {
+            this.errorReporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_DISCONNECT)
+                    .messageParam(this.playerName, message)
+                    .error(exception)
+                    .build());
         }
     }
 
     @Override
-    public Protocol getCurrentProtocol() {
-        // ensure that the accessor to the protocol field is available
-        if (this.protocolAccessor == null) {
-            this.protocolAccessor = Accessors.getFieldAccessor(
-                    this.networkManager.getClass(),
-                    MinecraftReflection.getEnumProtocolClass(),
-                    true);
-        }
-
-        Object nmsProtocol = this.protocolAccessor.get(this.networkManager);
-        return Protocol.fromVanilla((Enum<?>) nmsProtocol);
-    }
-
-    @Override
-    public NetworkMarker getMarker(Object packet) {
-        return this.savedMarkers.get(packet);
-    }
-
-    @Override
-    public void saveMarker(Object packet, NetworkMarker marker) {
-        if (marker != null && !this.closed) {
-            this.savedMarkers.put(packet, marker);
-        }
+    public Protocol getCurrentProtocol(PacketType.Sender sender) {
+        return ChannelProtocolUtil.PROTOCOL_RESOLVER.apply(this.channel, sender);
     }
 
     @Override
     public Player getPlayer() {
         // if the player was already resolved there is no need to do further lookups
-        if (this.resolvedPlayer != null) {
-            return this.resolvedPlayer;
+        if (this.player != null) {
+            return this.player;
         }
 
         // check if the name of the player is already known to the injector
         if (this.playerName != null) {
-            this.resolvedPlayer = this.server.getPlayerExact(this.playerName);
+            this.player = Bukkit.getPlayerExact(this.playerName);
+            if (this.player != null) {
+                this.injectionFactory.cacheInjector(this.player, this);
+            }
         }
 
         // either we resolved it or we didn't...
-        return this.resolvedPlayer;
+        return this.player;
     }
 
     @Override
     public void setPlayer(Player player) {
-        this.resolvedPlayer = player;
+        this.injectionFactory.invalidate(this.player, this.playerName);
+
+        this.player = player;
         this.playerName = player.getName();
+
+        this.injectionFactory.cacheInjector(player, this);
+        this.injectionFactory.cacheInjector(player.getName(), this);
     }
 
     @Override
-    public void disconnect(String message) {
-        // we're still during pre-login, just close the connection
-        if (this.playerConnection == null || this.resolvedPlayer instanceof ByteBuddyGenerated) {
-            this.wrappedChannel.disconnect();
-        } else {
-            try {
-                // try to call the disconnect method on the player
-                MinecraftMethods.getDisconnectMethod(this.playerConnection.getClass()).invoke(this.playerConnection, message);
-            } catch (Exception exception) {
-                throw new IllegalArgumentException("Unable to disconnect the current injector", exception);
-            }
-        }
+    public boolean isConnected() {
+        return this.channel.isActive();
     }
 
     @Override
@@ -391,138 +383,97 @@ public class NettyChannelInjector implements Injector {
 
     @Override
     public boolean isClosed() {
-        return this.closed;
+        return this.closed.get();
     }
 
-    void tryProcessLogin(Object packet) {
-        // check if the given packet is a login packet
-        if (LOGIN_PACKET_START_CLASS != null && LOGIN_PACKET_START_CLASS.equals(packet.getClass())) {
+    PacketType.Protocol getInboundProtocol() {
+        if (this.inboundProtocolReader != null) {
+            return this.inboundProtocolReader.getProtocol();
+        }
+        return getCurrentProtocol(PacketType.Sender.CLIENT);
+    }
+
+    /**
+     * Returns true if any plugin registed listeners or built-in listeners for the
+     * given packet type exist. See {@link #processInbound(ChannelHandlerContext, PacketContainer)}
+     * 
+     * @param type the packet type
+     * @return true if the packet type has listeners; otherwise false
+     */
+    boolean hasInboundListener(PacketType type) {
+        // always return true for types of the built-in listener (see #processInbound)
+        return type == PacketType.Handshake.Client.SET_PROTOCOL ||
+                type == PacketType.Login.Client.START ||
+                // check for plugin registed listener
+                this.listenerManager.hasInboundListener(type);
+    }
+
+    void processInbound(ChannelHandlerContext ctx, PacketContainer packet) {
+        // process set protocol packets for the protocol version
+        if (packet.getType() == PacketType.Handshake.Client.SET_PROTOCOL) {
+            Integer protocolVersion = packet.getIntegers().readSafely(0);
+            if (protocolVersion != null) {
+                this.channel.attr(PROTOCOL_VERSION).set(protocolVersion);
+            }
+        }
+
+        // process login packets for the player name
+        if (packet.getType() == PacketType.Login.Client.START) {
+            String username;
             if (MinecraftVersion.WILD_UPDATE.atOrAbove()) {
-                // 1.19 removed the profile from the packet and now sends the plain username directly
-                // ensure that the game profile accessor is available
-                if (LOGIN_PROFILE_ACCESSOR == null) {
-                    LOGIN_PROFILE_ACCESSOR = Accessors.getFieldAccessor(LOGIN_PACKET_START_CLASS, String.class, true);
-                }
+                // 1.19 replaced the gameprofile with username and uuid field
+                username = packet.getStrings().readSafely(0);
+            } else {
+                WrappedGameProfile profile = packet.getGameProfiles().readSafely(0);
+                username = profile != null ? profile.getName() : null;
+            }
 
-                // get the username from the packet
-                String username = (String) LOGIN_PROFILE_ACCESSOR.get(packet);
-
-                // cache the injector and the player name
+            if (username != null) {
                 this.playerName = username;
                 this.injectionFactory.cacheInjector(username, this);
-            } else {
-                // ensure that the game profile accessor is available
-                if (LOGIN_PROFILE_ACCESSOR == null) {
-                    LOGIN_PROFILE_ACCESSOR = Accessors.getFieldAccessor(
-                            LOGIN_PACKET_START_CLASS,
-                            MinecraftReflection.getGameProfileClass(),
-                            true);
-                }
-
-                // the client only sends the name but the server wraps it into a GameProfile, so here we are
-                WrappedGameProfile profile = WrappedGameProfile.fromHandle(LOGIN_PROFILE_ACCESSOR.get(packet));
-
-                // cache the injector and the player name
-                this.playerName = profile.getName();
-                this.injectionFactory.cacheInjector(profile.getName(), this);
-            }
-
-            return;
-        }
-
-        // protocol version begin
-        if (PACKET_PROTOCOL_CLASS != null && PACKET_PROTOCOL_CLASS.equals(packet.getClass())) {
-            // ensure the protocol version accessor is available
-            if (PROTOCOL_VERSION_ACCESSOR == null) {
-                try {
-                    Field ver = FuzzyReflection.fromClass(PACKET_PROTOCOL_CLASS, true).getField(FuzzyFieldContract.newBuilder()
-                            .banModifier(Modifier.STATIC)
-                            .typeExact(int.class)
-                            .build());
-                    PROTOCOL_VERSION_ACCESSOR = Accessors.getFieldAccessor(ver);
-                } catch (IllegalArgumentException exception) {
-                    // unable to resolve that field, continue no-op
-                    PROTOCOL_VERSION_ACCESSOR = NO_OP_ACCESSOR;
-                }
-            }
-
-            // read the protocol version from the field if available
-            if (PROTOCOL_VERSION_ACCESSOR != NO_OP_ACCESSOR) {
-                int protocolVersion = (int) PROTOCOL_VERSION_ACCESSOR.get(packet);
-                this.wrappedChannel.attr(PROTOCOL_VERSION).set(protocolVersion);
             }
         }
-    }
 
-    private void rewriteChannelField() {
-        // check if we need to rewrite the channel or if the channel is already correct (prevent wrapping a wrapped channel)
-        Object currentChannel = this.channelField.get(this.networkManager);
-        if (currentChannel instanceof NettyChannelProxy) {
-            return;
-        }
-
-        // the field is not correct, rewrite now to our handler
-        Channel ch = new NettyChannelProxy(this.wrappedChannel, new NettyEventLoopProxy(this.wrappedChannel.eventLoop(), this) {
-            @Override
-            protected Runnable doProxyRunnable(Runnable original) {
-                return NettyChannelInjector.this.processOutbound(original);
-            }
-
-            @Override
-            protected <T> Callable<T> doProxyCallable(Callable<T> original) {
-                return NettyChannelInjector.this.processOutbound(original);
-            }
-        }, this);
-        this.channelField.set(this.networkManager, ch);
-    }
-
-    private void ensureInEventLoop(Runnable runnable) {
-        this.ensureInEventLoop(this.wrappedChannel.eventLoop(), runnable);
-    }
-
-    private void ensureInEventLoop(EventLoop eventLoop, Runnable runnable) {
-        if (eventLoop.inEventLoop()) {
-            runnable.run();
+        // invoke plugin listeners
+        if (this.listenerManager.hasInboundListener(packet.getType())) {
+            this.processInboundInternal(ctx, packet);
         } else {
-            eventLoop.execute(runnable);
+            ctx.fireChannelRead(packet.getHandle());
         }
     }
 
-    void processInboundPacket(ChannelHandlerContext ctx, Object packet, Class<?> packetClass) {
-        if (this.channelListener.hasMainThreadListener(packetClass) && !this.server.isPrimaryThread()) {
-            // not on the main thread but we are required to be - re-schedule the packet on the main thread
-            ProtocolLibrary.getScheduler().runTask(
-                    () -> this.processInboundPacket(ctx, packet, packetClass));
+    private void processInboundInternal(ChannelHandlerContext ctx, PacketContainer packetContainer) {
+        if (this.listenerManager.hasMainThreadListener(packetContainer.getType()) && !Bukkit.isPrimaryThread()) {
+            // not on the main thread but we are required to be reschedule the packet on the
+            // main thread
+            ProtocolLibrary.getScheduler().runTask(() -> this.processInboundInternal(ctx, packetContainer));
             return;
         }
 
-        // call packet handlers, a null result indicates that we shouldn't change anything
-        PacketEvent interceptionResult = this.channelListener.onPacketReceiving(this, packet, null);
-        if (interceptionResult == null) {
+        // create event and invoke listeners
+        PacketEvent event = PacketEvent.fromClient(this, packetContainer, this.player);
+        this.listenerManager.invokeInboundPacketListeners(event);
+
+        // get packet of event
+        Object packet = event.getPacket().getHandle();
+
+        // fire the intercepted packet down the pipeline if it wasn't cancelled and isn't null
+        if (!event.isCancelled() && packet != null) {
             this.ensureInEventLoop(ctx.channel().eventLoop(), () -> ctx.fireChannelRead(packet));
-            return;
-        }
-
-        // fire the intercepted packet down the pipeline if it wasn't cancelled
-        if (!interceptionResult.isCancelled()) {
-            this.ensureInEventLoop(
-                    ctx.channel().eventLoop(),
-                    () -> ctx.fireChannelRead(interceptionResult.getPacket().getHandle()));
 
             // check if there were any post events added the packet after we fired it down the pipeline
             // we use this way as we don't want to construct a new network manager accidentally
-            NetworkMarker marker = NetworkMarker.getNetworkMarker(interceptionResult);
+            NetworkMarker marker = NetworkMarker.getNetworkMarker(event);
             if (marker != null) {
-                this.networkProcessor.invokePostEvent(interceptionResult, marker);
+                this.networkProcessor.invokePostEvent(event, marker);
             }
         }
     }
 
     <T> T processOutbound(T action) {
-        // get the accessor to the packet field
-        // if we are unable to look up the accessor then just return the runnable, probably nothing of our business
+        // try to get packet field accessor or return on failure
         FieldAccessor packetAccessor = this.lookupPacketAccessor(action);
-        if (packetAccessor == NO_OP_ACCESSOR) {
+        if (packetAccessor == FieldAccessor.NO_OP_ACCESSOR) {
             return action;
         }
 
@@ -547,30 +498,41 @@ public class NettyChannelInjector implements Injector {
             return action;
         }
 
+        PacketType.Protocol protocol = this.getCurrentProtocol(PacketType.Sender.SERVER);
+        if (protocol == Protocol.UNKNOWN) {
+            ProtocolLogger.debug("skipping unknown outbound protocol for {0}", packet.getClass());
+            return action;
+        }
+        
+        PacketType packetType = PacketRegistry.getPacketType(protocol, packet.getClass());
+        if (packetType == null) {
+            ProtocolLogger.debug("skipping unknown outbound packet type for {0}", packet.getClass());
+            return action;
+        }
+
         // no listener and no marker - no magic :)
-        if (!this.channelListener.hasListener(packet.getClass()) && marker == null && !MinecraftReflection.isBundlePacket(packet.getClass())) {
+        if (!this.listenerManager.hasOutboundListener(packetType) && marker == null && !MinecraftReflection.isBundlePacket(packet.getClass())) {
             return action;
         }
 
         // ensure that we are on the main thread if we need to
-        if (this.channelListener.hasMainThreadListener(packet.getClass()) && !this.server.isPrimaryThread()) {
+        if (this.listenerManager.hasMainThreadListener(packetType) && !Bukkit.isPrimaryThread()) {
             // not on the main thread but we are required to be - re-schedule the packet on the main thread
-            ProtocolLibrary.getScheduler().runTask(
-                    () -> this.sendServerPacket(packet, null, true));
+            ProtocolLibrary.getScheduler().runTask(() -> this.sendClientboundPacket(packet, null, true));
             return null;
         }
 
-        // call all listeners which are listening to the outbound packet, if any
-        // null indicates that no listener was affected by the packet, meaning that we can directly send the original packet
-        PacketEvent event = this.channelListener.onPacketSending(this, packet, marker);
-        if (event == null) {
-            return action;
-        }
+        // create event and invoke listeners
+        PacketContainer packetContainer = new PacketContainer(packetType, packet);
+        PacketEvent event = PacketEvent.fromServer(this, packetContainer, marker, this.player);
+        this.listenerManager.invokeOutboundPacketListeners(event);
+
+        // get packet of event
+        Object interceptedPacket = event.getPacket().getHandle();
 
         // if the event wasn't cancelled by this action we must recheck if the packet changed during the method call
-        if (!event.isCancelled()) {
+        if (!event.isCancelled() && interceptedPacket != null) {
             // rewrite the packet in the given action if the packet was changed during the event call
-            Object interceptedPacket = event.getPacket().getHandle();
             if (interceptedPacket != packet) {
                 packetAccessor.set(action, interceptedPacket);
             }
@@ -620,37 +582,29 @@ public class NettyChannelInjector implements Injector {
     }
 
     private FieldAccessor lookupPacketAccessor(Object action) {
-        return PACKET_ACCESSORS.computeIfAbsent(action.getClass(), clazz -> {
+        return PACKET_ACCESSORS.computeIfAbsent(action.getClass(), key -> {
             try {
-                // find the field
-                Field packetField = FuzzyReflection.fromClass(clazz, true).getField(FuzzyFieldContract
-                        .newBuilder()
+                Field packetField = FuzzyReflection.fromClass(key, true).getField(
+                        FuzzyFieldContract.newBuilder()
                         .typeSuperOf(MinecraftReflection.getPacketClass())
                         .build());
                 return Accessors.getFieldAccessor(packetField);
             } catch (IllegalArgumentException exception) {
-                // no such field found :(
-                return NO_OP_ACCESSOR;
+                // return noop accessor because computeIfAbsent interprets null as a missing key
+                return FieldAccessor.NO_OP_ACCESSOR;
             }
         });
     }
 
-    private Object getPlayerConnection() {
-        // resolve the player connection if needed
-        if (this.playerConnection == null) {
-            Player target = this.getPlayer();
-            if (target == null) {
-                return null;
-            }
-
-            this.playerConnection = MinecraftFields.getPlayerConnection(target);
-        }
-
-        // cannot be null at this point
-        return this.playerConnection;
+    private void ensureInEventLoop(Runnable runnable) {
+        this.ensureInEventLoop(this.channel.eventLoop(), runnable);
     }
 
-    public Channel getWrappedChannel() {
-        return this.wrappedChannel;
+    private void ensureInEventLoop(EventLoop eventLoop, Runnable runnable) {
+        if (eventLoop.inEventLoop()) {
+            runnable.run();
+        } else {
+            eventLoop.execute(runnable);
+        }
     }
 }

src/main/java/com/comphenix/protocol/injector/netty/channel/NettyChannelMinimalInjector.java

@@ -1,44 +0,0 @@
-package com.comphenix.protocol.injector.netty.channel;
-
-import com.comphenix.protocol.events.NetworkMarker;
-import com.comphenix.protocol.injector.temporary.MinimalInjector;
-import java.net.SocketAddress;
-import org.bukkit.entity.Player;
-
-final class NettyChannelMinimalInjector implements MinimalInjector {
-
-    private final NettyChannelInjector injector;
-
-    public NettyChannelMinimalInjector(NettyChannelInjector injector) {
-        this.injector = injector;
-    }
-
-    @Override
-    public SocketAddress getAddress() {
-        return this.injector.getWrappedChannel().remoteAddress();
-    }
-
-    @Override
-    public void disconnect(String message) {
-        this.injector.disconnect(message);
-    }
-
-    @Override
-    public void sendServerPacket(Object packet, NetworkMarker marker, boolean filtered) {
-        this.injector.sendServerPacket(packet, marker, filtered);
-    }
-
-    @Override
-    public Player getPlayer() {
-        return this.injector.getPlayer();
-    }
-
-    @Override
-    public boolean isConnected() {
-        return this.injector.getWrappedChannel().isActive();
-    }
-
-    public NettyChannelInjector getInjector() {
-        return this.injector;
-    }
-}

src/main/java/com/comphenix/protocol/injector/netty/channel/NettyEventLoopProxy.java

@@ -1,5 +1,15 @@
 package com.comphenix.protocol.injector.netty.channel;
 
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Spliterator;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.function.Consumer;
+
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelPromise;
@@ -10,21 +20,12 @@ import io.netty.util.concurrent.Future;
 import io.netty.util.concurrent.ProgressivePromise;
 import io.netty.util.concurrent.Promise;
 import io.netty.util.concurrent.ScheduledFuture;
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Spliterator;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-import java.util.function.Consumer;
 
 /**
  * An abstract event loop implementation which delegates all calls to a given event loop, but proxies all calls which
  * schedule something on the event loop to methods which decide what should happen to the scheduled task.
  */
-abstract class NettyEventLoopProxy implements EventLoop {
+final class NettyEventLoopProxy implements EventLoop {
 
     private static final Callable<?> EMPTY_CALLABLE = () -> null;
     private static final Runnable EMPTY_RUNNABLE = () -> {
@@ -40,7 +41,7 @@ abstract class NettyEventLoopProxy implements EventLoop {
 
     private Runnable proxyRunnable(Runnable original) {
         // execute the proxy and check if we need to do anything
-        Runnable proxied = this.doProxyRunnable(original);
+        Runnable proxied = this.injector.processOutbound(original);
         if (proxied != null && proxied == original) {
             // was not changed, we need to mark the packet as processed manually
             return () -> {
@@ -55,7 +56,7 @@ abstract class NettyEventLoopProxy implements EventLoop {
 
     private <T> Callable<T> proxyCallable(Callable<T> original) {
         // execute the proxy and check if we need to do anything
-        Callable<T> proxied = this.doProxyCallable(original);
+        Callable<T> proxied = this.injector.processOutbound(original);
         if (proxied != null && proxied == original) {
             // was not changed, we need to mark the packet as processed manually
             return () -> {
@@ -68,26 +69,6 @@ abstract class NettyEventLoopProxy implements EventLoop {
         }
     }
 
-    /**
-     * Proxies the given runnable. The returned runnable will be executed instead of the original. If this method returns
-     * null a no-op runnable will be scheduled instead, preventing the original action from happening.
-     *
-     * @param original the runnable to proxy.
-     * @return the runnable to execute instead, null to execute no action.
-     */
-    protected abstract Runnable doProxyRunnable(Runnable original);
-
-    /**
-     * Proxies the given callable. The returned callable will be executed instead of the original. If this method returns
-     * null a callable which always returns null will be scheduled instead, preventing the original action from
-     * happening.
-     *
-     * @param original the callable to proxy.
-     * @param <T>      the return type of the original callable.
-     * @return the callable to execute instead of the original, null to use a no-op callable instead.
-     */
-    protected abstract <T> Callable<T> doProxyCallable(Callable<T> original);
-
     @Override
     public EventLoopGroup parent() {
         return this.delegate.parent();

src/main/java/com/comphenix/protocol/injector/netty/channel/PacketListenerInvoker.java

@@ -0,0 +1,237 @@
+package com.comphenix.protocol.injector.netty.channel;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.lang.reflect.Parameter;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+
+import com.comphenix.protocol.ProtocolLogger;
+import com.comphenix.protocol.reflect.FuzzyReflection;
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.MethodAccessor;
+import com.comphenix.protocol.reflect.fuzzy.FuzzyMethodContract;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.wrappers.WrappedChatComponent;
+
+import io.netty.channel.ChannelHandlerContext;
+
+/**
+ * This class facilitates the invocation of methods on the current packet listener.
+ * It attempts to execute the <code>send</code>, <code>read</code>, and <code>disconnect</code> 
+ * methods and, upon failure (either due to the absence of the method or the packet 
+ * listener being of an incorrect type), it delegates the call to the network manager.
+ * 
+ * <p>Supported packet listener types include CONFIGURATION and PLAY. If the packet
+ * listener does not match these types, or if the required method is missing, the 
+ * operation falls back to similar methods available in the network manager.
+ * 
+ * <p>It is important to note that this class does not handle exceptions internally.
+ * Instead, it propagates them to the caller. During the initialization phase, the
+ * class will throw an exception if the necessary methods in the network manager are
+ * not available, ensuring that these dependencies are addressed early in the runtime.
+ */
+public class PacketListenerInvoker {
+
+    private static final Class<?> PACKET_LISTENER_CLASS = MinecraftReflection.getMinecraftClass("network.PacketListener", "PacketListener");
+    private static final Class<?> GAME_PACKET_LISTENER_CLASS = MinecraftReflection.getPlayerConnectionClass();
+    private static final Class<?> COMMON_PACKET_LISTENER_CLASS = MinecraftReflection.getNullableNMS("server.network.ServerCommonPacketListenerImpl");
+    private static final Class<?> PREFERRED_PACKET_LISTENER_CLASS = COMMON_PACKET_LISTENER_CLASS != null ? COMMON_PACKET_LISTENER_CLASS : GAME_PACKET_LISTENER_CLASS;
+
+    private static final MethodAccessor PACKET_LISTENER_SEND = getPacketListenerSend();
+    private static final MethodAccessor PACKET_LISTENER_DISCONNECT = getPacketListenerDisconnect();
+    private static final boolean DOES_PACKET_LISTENER_DISCONNECT_USE_COMPONENT = doesPacketListenerDisconnectUseComponent();
+
+    private static final MethodAccessor NETWORK_MANAGER_SEND = getNetworkManagerSend();
+    private static final MethodAccessor NETWORK_MANAGER_READ = getNetworkManagerRead();
+    private static final MethodAccessor NETWORK_MANAGER_DISCONNECT = getNetworkManagerDisconnect();
+    private static final MethodAccessor NETWORK_MANAGER_PACKET_LISTENER = getNetworkManagerPacketListener();
+
+    public static void ensureStaticInitializedWithoutError() {
+    }
+
+    private static MethodAccessor getPacketListenerSend() {
+        FuzzyReflection packetListener = FuzzyReflection.fromClass(PREFERRED_PACKET_LISTENER_CLASS);
+
+        List<Method> send = packetListener.getMethodList(FuzzyMethodContract.newBuilder()
+                .banModifier(Modifier.STATIC)
+                .returnTypeVoid()
+                .parameterCount(1)
+                .parameterExactType(MinecraftReflection.getPacketClass(), 0)
+                .build());
+
+        if (send.isEmpty()) {
+            ProtocolLogger.debug("Can't get packet listener send method");
+            return null;
+        }
+
+        return Accessors.getMethodAccessor(send.get(0));
+    }
+
+    private static MethodAccessor getPacketListenerDisconnect() {
+        FuzzyReflection packetListener = FuzzyReflection.fromClass(PREFERRED_PACKET_LISTENER_CLASS);
+
+        List<Method> disconnect = packetListener.getMethodList(FuzzyMethodContract.newBuilder()
+                .banModifier(Modifier.STATIC)
+                .returnTypeVoid()
+                .parameterCount(1)
+                .parameterExactType(MinecraftReflection.getIChatBaseComponentClass(), 0)
+                .build());
+
+        if (disconnect.isEmpty()) {
+            disconnect = packetListener.getMethodList(FuzzyMethodContract.newBuilder()
+                    .banModifier(Modifier.STATIC)
+                    .returnTypeVoid()
+                    .nameRegex("disconnect.*")
+                    .parameterCount(1)
+                    .parameterExactType(String.class, 0)
+                    .build());
+        }
+
+        if (disconnect.isEmpty()) {
+            ProtocolLogger.debug("Can't get packet listener disconnect method");
+            return null;
+        }
+
+        return Accessors.getMethodAccessor(disconnect.get(0));
+    }
+
+    private static boolean doesPacketListenerDisconnectUseComponent() {
+        if (PACKET_LISTENER_DISCONNECT != null) {
+            Parameter reason = PACKET_LISTENER_DISCONNECT.getMethod().getParameters()[0];
+            return MinecraftReflection.isIChatBaseComponent(reason.getClass());
+        }
+        return false;
+    }
+
+    private static MethodAccessor getNetworkManagerSend() {
+        FuzzyReflection networkManager = FuzzyReflection.fromClass(MinecraftReflection.getNetworkManagerClass());
+
+        Method send = networkManager.getMethod(FuzzyMethodContract.newBuilder()
+                .banModifier(Modifier.STATIC)
+                .returnTypeVoid()
+                .parameterCount(1)
+                .parameterExactType(MinecraftReflection.getPacketClass(), 0)
+                .build());
+
+        return Accessors.getMethodAccessor(send);
+    }
+
+    private static MethodAccessor getNetworkManagerRead() {
+        FuzzyReflection networkManager = FuzzyReflection.fromClass(MinecraftReflection.getNetworkManagerClass(), true);
+
+        Method read = networkManager
+            .getMethodByParameters("read", ChannelHandlerContext.class, MinecraftReflection.getPacketClass());
+
+        return Accessors.getMethodAccessor(read);
+    }
+
+    private static MethodAccessor getNetworkManagerDisconnect() {
+        FuzzyReflection networkManager = FuzzyReflection.fromClass(MinecraftReflection.getNetworkManagerClass());
+
+        Method disconnect = networkManager.getMethod(FuzzyMethodContract.newBuilder()
+                .banModifier(Modifier.STATIC)
+                .returnTypeVoid()
+                .parameterCount(1)
+                .parameterExactType(MinecraftReflection.getIChatBaseComponentClass(), 0)
+                .build());
+
+        return Accessors.getMethodAccessor(disconnect);
+    }
+
+    private static MethodAccessor getNetworkManagerPacketListener() {
+        FuzzyReflection networkManager = FuzzyReflection.fromClass(MinecraftReflection.getNetworkManagerClass());
+
+        Method packetListener = networkManager.getMethod(FuzzyMethodContract.newBuilder()
+                .banModifier(Modifier.STATIC)
+                .returnTypeExact(PACKET_LISTENER_CLASS)
+                .parameterCount(0)
+                .build());
+
+        return Accessors.getMethodAccessor(packetListener);
+    }
+
+    private final Object networkManager;
+    private final AtomicReference<Object> packetListener = new AtomicReference<>(null);
+
+    PacketListenerInvoker(Object networkManager) {
+        if (!MinecraftReflection.is(MinecraftReflection.getNetworkManagerClass(), networkManager)) {
+            throw new IllegalArgumentException("Given NetworkManager isn't an isntance of NetworkManager");
+        }
+        this.networkManager = networkManager;
+    }
+   
+    /**
+     * Retrieves the current packet listener associated with this network manager.
+     *
+     * <p>This method ensures thread-safety and returns the packet listener only if it is an
+     * instance of the preferred class. If the packet listener has changed or does not match
+     * the preferred class, it returns {@code null}.
+     *
+     * @return the current packet listener if it meets the required criteria, otherwise {@code null}.
+     */
+    private Object getPacketListener() {
+        // Retrieve the current packet listener from the network manager using reflection.
+        Object packetListener = NETWORK_MANAGER_PACKET_LISTENER.invoke(this.networkManager);
+
+        // Perform a thread-safe check to see if the packet listener has changed since the last retrieval.
+        if (!this.packetListener.compareAndSet(packetListener, packetListener)) {
+            // If the packet listener has changed, attempt to update the cached listener to the new instance,
+            // or invalidate the cached object if it does not match the preferred type.
+            if (PREFERRED_PACKET_LISTENER_CLASS.isInstance(packetListener)) {
+                this.packetListener.set(packetListener);
+            } else {
+                this.packetListener.set(null);
+            }
+        }
+
+        // Return the currently cached packet listener, which may be null if it does not match the preferred type.
+        return this.packetListener.get();
+    }
+
+    /**
+     * Sends a packet using the current packet listener if available and valid; otherwise, 
+     * falls back to the network manager.
+     *
+     * @param packet The packet to be sent.
+     */
+    public void send(Object packet) {
+        Object packetListener = this.getPacketListener();
+        if (PACKET_LISTENER_SEND != null && packetListener != null) {
+            PACKET_LISTENER_SEND.invoke(packetListener, packet);
+        } else {
+            NETWORK_MANAGER_SEND.invoke(this.networkManager, packet);
+        }
+    }
+
+    /**
+     * Reads a packet directly using the network manager.
+     *
+     * @param packet The packet to be read.
+     */
+    public void read(Object packet) {
+        NETWORK_MANAGER_READ.invoke(this.networkManager, null, packet);
+    }
+
+    /**
+     * Disconnects the player using the current packet listener if available and valid; otherwise, 
+     * falls back to the network manager.
+     *
+     * @param reason The reason for the disconnection.
+     */
+    public void disconnect(String reason) {
+        Object packetListener = this.getPacketListener();
+        boolean hasPacketListener = PACKET_LISTENER_DISCONNECT != null && packetListener != null;
+
+        Object wrapped = reason;
+        if (!hasPacketListener || DOES_PACKET_LISTENER_DISCONNECT_USE_COMPONENT) {
+            wrapped = WrappedChatComponent.fromText(reason).getHandle();
+        }
+
+        if (hasPacketListener) {
+            PACKET_LISTENER_DISCONNECT.invoke(packetListener, wrapped);
+        } else {
+            NETWORK_MANAGER_DISCONNECT.invoke(this.networkManager, wrapped);
+        }
+    }
+}

src/main/java/com/comphenix/protocol/injector/netty/manager/InjectionChannelInboundHandler.java

@@ -1,9 +1,10 @@
 package com.comphenix.protocol.injector.netty.manager;
 
+import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.error.Report;
 import com.comphenix.protocol.error.ReportType;
 import com.comphenix.protocol.injector.netty.channel.InjectionFactory;
-import com.comphenix.protocol.injector.temporary.TemporaryPlayerFactory;
+
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 
@@ -11,18 +12,15 @@ final class InjectionChannelInboundHandler extends ChannelInboundHandlerAdapter
 
     private static final ReportType CANNOT_INJECT_CHANNEL = new ReportType("Unable to inject incoming channel %s.");
 
-    private final InjectionFactory factory;
-    private final NetworkManagerInjector listener;
-    private final TemporaryPlayerFactory playerFactory;
+    private final ErrorReporter errorReporter;
+    private final InjectionFactory injectionFactory;
 
     public InjectionChannelInboundHandler(
-            InjectionFactory factory,
-            NetworkManagerInjector listener,
-            TemporaryPlayerFactory playerFactory
+            ErrorReporter errorReporter,
+            InjectionFactory injectionFactory
     ) {
-        this.factory = factory;
-        this.listener = listener;
-        this.playerFactory = playerFactory;
+        this.errorReporter = errorReporter;
+        this.injectionFactory = injectionFactory;
     }
 
     @Override
@@ -35,11 +33,11 @@ final class InjectionChannelInboundHandler extends ChannelInboundHandlerAdapter
         // We're first checking if the factory is still open, just might be a delay between accepting the connection
         // (which adds this handler to the pipeline) and the actual channelActive call. If the injector is closed at
         // that point we might accidentally trigger class loads which result in exceptions.
-        if (!this.factory.isClosed()) {
+        if (!this.injectionFactory.isClosed()) {
             try {
-                this.factory.fromChannel(ctx.channel(), this.listener, this.playerFactory).inject();
+                this.injectionFactory.fromChannel(ctx.channel()).inject();
             } catch (Exception exception) {
-                this.listener.getReporter().reportDetailed(this, Report.newBuilder(CANNOT_INJECT_CHANNEL)
+                this.errorReporter.reportDetailed(this, Report.newBuilder(CANNOT_INJECT_CHANNEL)
                         .messageParam(ctx.channel())
                         .error(exception)
                         .build());
@@ -52,7 +50,7 @@ final class InjectionChannelInboundHandler extends ChannelInboundHandlerAdapter
 
     @Override
     public boolean isSharable() {
-        // we do it this way to prevent the lookup overheat
+        // we do it this way to prevent the lookup overhead
         return true;
     }
 }

src/main/java/com/comphenix/protocol/injector/netty/manager/InjectionChannelInitializer.java

@@ -28,7 +28,7 @@ final class InjectionChannelInitializer extends ChannelInboundHandlerAdapter {
 
     @Override
     public boolean isSharable() {
-        // we do it this way to prevent the lookup overheat
+        // we do it this way to prevent the lookup overhead
         return true;
     }
 }

src/main/java/com/comphenix/protocol/injector/netty/manager/ListeningList.java

@@ -13,7 +13,6 @@ import java.util.function.Consumer;
 import java.util.function.Predicate;
 import java.util.function.UnaryOperator;
 
-@SuppressWarnings("NullableProblems")
 final class ListeningList implements List<Object> {
 
     private final List<Object> original;

src/main/java/com/comphenix/protocol/injector/netty/manager/NetworkManagerInjector.java

@@ -7,149 +7,54 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
-import com.comphenix.protocol.PacketType;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+
 import com.comphenix.protocol.ProtocolLogger;
-import com.comphenix.protocol.concurrency.PacketTypeSet;
 import com.comphenix.protocol.error.ErrorReporter;
-import com.comphenix.protocol.events.NetworkMarker;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.injector.ListenerInvoker;
-import com.comphenix.protocol.injector.netty.ChannelListener;
+import com.comphenix.protocol.injector.ListenerManager;
 import com.comphenix.protocol.injector.netty.Injector;
 import com.comphenix.protocol.injector.netty.channel.InjectionFactory;
-import com.comphenix.protocol.injector.packet.PacketInjector;
-import com.comphenix.protocol.injector.packet.PacketRegistry;
-import com.comphenix.protocol.injector.player.PlayerInjectionHandler;
-import com.comphenix.protocol.injector.temporary.TemporaryPlayerFactory;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.reflect.accessors.Accessors;
 import com.comphenix.protocol.reflect.accessors.FieldAccessor;
 import com.comphenix.protocol.reflect.fuzzy.FuzzyFieldContract;
 import com.comphenix.protocol.reflect.fuzzy.FuzzyMethodContract;
 import com.comphenix.protocol.utility.MinecraftReflection;
-import com.comphenix.protocol.utility.Util;
 import com.comphenix.protocol.wrappers.Pair;
-import io.netty.channel.ChannelFuture;
-import org.bukkit.Server;
-import org.bukkit.plugin.Plugin;
 
-public class NetworkManagerInjector implements ChannelListener {
+import io.netty.channel.ChannelFuture;
+
+public class NetworkManagerInjector {
 
     private static final String INBOUND_INJECT_HANDLER_NAME = "protocol_lib_inbound_inject";
-    private static final TemporaryPlayerFactory PLAYER_FACTORY = new TemporaryPlayerFactory();
-
-    private final PacketTypeSet inboundListeners = new PacketTypeSet();
-    private final PacketTypeSet outboundListeners = new PacketTypeSet();
-    private final PacketTypeSet mainThreadListeners = new PacketTypeSet();
 
     // all list fields which we've overridden and need to revert to a non-proxying list afterwards
     private final Set<Pair<Object, FieldAccessor>> overriddenLists = new HashSet<>();
 
     private final ErrorReporter errorReporter;
-    private final ListenerInvoker listenerInvoker;
     private final InjectionFactory injectionFactory;
 
-    // injectors based on this "global" injector
-    private final PacketInjector packetInjector;
-    private final PlayerInjectionHandler playerInjectionHandler;
-
+    // netty handler
     private final InjectionChannelInitializer pipelineInjectorHandler;
 
-    private boolean debug = false;
-
     // status of this injector
     private boolean closed = false;
     private boolean injected = false;
 
-    public NetworkManagerInjector(Plugin plugin, Server server, ListenerInvoker listenerInvoker, ErrorReporter reporter) {
+    public NetworkManagerInjector(Plugin plugin, ListenerManager listenerManager, ErrorReporter reporter) {
         this.errorReporter = reporter;
-        this.listenerInvoker = listenerInvoker;
-        this.injectionFactory = new InjectionFactory(plugin, server, reporter);
+        this.injectionFactory = new InjectionFactory(plugin, reporter, listenerManager);
 
         // hooking netty handlers
         InjectionChannelInboundHandler injectionHandler = new InjectionChannelInboundHandler(
-                this.injectionFactory,
-                this,
-                PLAYER_FACTORY);
+                this.errorReporter,
+                this.injectionFactory);
         this.pipelineInjectorHandler = new InjectionChannelInitializer(INBOUND_INJECT_HANDLER_NAME, injectionHandler);
-
-        // other injectors
-        this.playerInjectionHandler = new NetworkManagerPlayerInjector(
-                this.outboundListeners,
-                this,
-                this.injectionFactory,
-                this.mainThreadListeners);
-        this.packetInjector = new NetworkManagerPacketInjector(
-                this.inboundListeners,
-                this.listenerInvoker,
-                this,
-                this.mainThreadListeners);
     }
 
-    @Override
-    public PacketEvent onPacketSending(Injector injector, Object packet, NetworkMarker marker) {
-        // check if we need to intercept the packet
-        Class<?> packetClass = packet.getClass();
-        if (marker != null || MinecraftReflection.isBundlePacket(packetClass) || outboundListeners.contains(packetClass)) {
-            // wrap packet and construct the event
-            PacketContainer container = new PacketContainer(PacketRegistry.getPacketType(packetClass), packet);
-            PacketEvent packetEvent = PacketEvent.fromServer(this, container, marker, injector.getPlayer());
-
-            // post to all listeners, then return the packet event we constructed
-            this.listenerInvoker.invokePacketSending(packetEvent);
-            return packetEvent;
-        }
-
-        // no listener so there is no change we need to apply
-        return null;
-    }
-
-    @Override
-    public PacketEvent onPacketReceiving(Injector injector, Object packet, NetworkMarker marker) {
-        // check if we need to intercept the packet
-        Class<?> packetClass = packet.getClass();
-        if (marker != null || inboundListeners.contains(packetClass)) {
-            // wrap the packet and construct the event
-            PacketContainer container = new PacketContainer(PacketRegistry.getPacketType(packetClass), packet);
-            PacketEvent packetEvent = PacketEvent.fromClient(this, container, marker, injector.getPlayer());
-
-            // post to all listeners, then return the packet event we constructed
-            this.listenerInvoker.invokePacketReceiving(packetEvent);
-            return packetEvent;
-        }
-
-        // no listener so there is no change we need to apply
-        return null;
-    }
-
-    @Override
-    public boolean hasListener(Class<?> packetClass) {
-        return this.outboundListeners.contains(packetClass) || this.inboundListeners.contains(packetClass);
-    }
-
-    @Override
-    public boolean hasMainThreadListener(Class<?> packetClass) {
-        return this.mainThreadListeners.contains(packetClass);
-    }
-
-    @Override
-    public boolean hasMainThreadListener(PacketType type) {
-        return this.mainThreadListeners.contains(type);
-    }
-
-    @Override
-    public ErrorReporter getReporter() {
-        return this.errorReporter;
-    }
-
-    @Override
-    public boolean isDebug() {
-        return this.debug;
-    }
-
-    public void setDebug(boolean debug) {
-        this.debug = debug;
+    public Injector getInjector(Player player) {
+    	return this.injectionFactory.fromPlayer(player);
     }
 
     @SuppressWarnings("unchecked")
@@ -238,7 +143,6 @@ public class NetworkManagerInjector implements ChannelListener {
                 // just reset to the list we wrapped originally
                 ListeningList ourList = (ListeningList) currentFieldValue;
                 List<Object> original = ourList.getOriginal();
-                //noinspection SynchronizationOnLocalVariableOrMethodParameter
                 synchronized (original) {
                     // revert the injection from all values of the list
                     ourList.unProcessAll();
@@ -251,12 +155,4 @@ public class NetworkManagerInjector implements ChannelListener {
         this.overriddenLists.clear();
         this.injectionFactory.close();
     }
-
-    public PacketInjector getPacketInjector() {
-        return this.packetInjector;
-    }
-
-    public PlayerInjectionHandler getPlayerInjectionHandler() {
-        return this.playerInjectionHandler;
-    }
 }

src/main/java/com/comphenix/protocol/injector/netty/manager/NetworkManagerPacketInjector.java

@@ -1,61 +0,0 @@
-package com.comphenix.protocol.injector.netty.manager;
-
-import java.util.Set;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.concurrency.PacketTypeSet;
-import com.comphenix.protocol.events.ListenerOptions;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.injector.ListenerInvoker;
-import com.comphenix.protocol.injector.netty.ChannelListener;
-import com.comphenix.protocol.injector.packet.AbstractPacketInjector;
-import org.bukkit.entity.Player;
-
-final class NetworkManagerPacketInjector extends AbstractPacketInjector {
-
-    private final ListenerInvoker invoker;
-    private final ChannelListener channelListener;
-    private final PacketTypeSet mainThreadListeners;
-
-    public NetworkManagerPacketInjector(
-            PacketTypeSet inboundFilters,
-            ListenerInvoker invoker,
-            ChannelListener listener,
-            PacketTypeSet mainThreadListeners
-    ) {
-        super(inboundFilters);
-
-        this.invoker = invoker;
-        this.channelListener = listener;
-        this.mainThreadListeners = mainThreadListeners;
-    }
-
-    @Override
-    public boolean addPacketHandler(PacketType type, Set<ListenerOptions> options) {
-        if (!type.isAsyncForced() && options != null && options.contains(ListenerOptions.SYNC)) {
-            this.mainThreadListeners.addType(type);
-        }
-
-        return super.addPacketHandler(type, options);
-    }
-
-    @Override
-    public boolean removePacketHandler(PacketType type) {
-        this.mainThreadListeners.removeType(type);
-        return super.removePacketHandler(type);
-    }
-
-    @Override
-    public PacketEvent packetReceived(PacketContainer packet, Player client) {
-        PacketEvent event = PacketEvent.fromClient(this.channelListener, packet, null, client);
-        this.invoker.invokePacketReceiving(event);
-
-        return event;
-    }
-
-    @Override
-    public boolean hasMainThreadListener(PacketType type) {
-        return this.mainThreadListeners.contains(type);
-    }
-}

src/main/java/com/comphenix/protocol/injector/netty/manager/NetworkManagerPlayerInjector.java

@@ -1,101 +0,0 @@
-package com.comphenix.protocol.injector.netty.manager;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.concurrency.PacketTypeSet;
-import com.comphenix.protocol.events.ListenerOptions;
-import com.comphenix.protocol.events.NetworkMarker;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.injector.netty.ChannelListener;
-import com.comphenix.protocol.injector.netty.Injector;
-import com.comphenix.protocol.injector.netty.channel.InjectionFactory;
-import com.comphenix.protocol.injector.netty.channel.NettyChannelInjector;
-import com.comphenix.protocol.injector.player.AbstractPlayerInjectionHandler;
-import io.netty.channel.Channel;
-import java.util.Set;
-import org.bukkit.entity.Player;
-
-final class NetworkManagerPlayerInjector extends AbstractPlayerInjectionHandler {
-
-    private final ChannelListener listener;
-    private final InjectionFactory injectionFactory;
-    private final PacketTypeSet mainThreadListeners;
-
-    public NetworkManagerPlayerInjector(
-            PacketTypeSet outboundListener,
-            ChannelListener listener,
-            InjectionFactory injectionFactory,
-            PacketTypeSet mainThreadListeners
-    ) {
-        super(outboundListener);
-
-        this.listener = listener;
-        this.injectionFactory = injectionFactory;
-        this.mainThreadListeners = mainThreadListeners;
-    }
-
-    @Override
-    public int getProtocolVersion(Player player) {
-        return this.injectionFactory.fromPlayer(player, this.listener).getProtocolVersion();
-    }
-
-    @Override
-    public void injectPlayer(Player player, ConflictStrategy strategy) {
-        this.injectionFactory.fromPlayer(player, this.listener).inject();
-    }
-
-    @Override
-    public void handleDisconnect(Player player) {
-        // noop
-    }
-
-    @Override
-    public boolean uninjectPlayer(Player player) {
-        this.injectionFactory.fromPlayer(player, this.listener).uninject();
-        return true;
-    }
-
-    @Override
-    public void sendServerPacket(Player receiver, PacketContainer packet, NetworkMarker marker, boolean filters) {
-        this.injectionFactory.fromPlayer(receiver, this.listener).sendServerPacket(packet.getHandle(), marker, filters);
-    }
-
-    @Override
-    public void receiveClientPacket(Player player, Object mcPacket) {
-        this.injectionFactory.fromPlayer(player, this.listener).receiveClientPacket(mcPacket);
-    }
-
-    @Override
-    public void updatePlayer(Player player) {
-        this.injectionFactory.fromPlayer(player, this.listener).inject();
-    }
-
-    @Override
-    public boolean hasMainThreadListener(PacketType type) {
-        return this.mainThreadListeners.contains(type);
-    }
-
-    @Override
-    public Channel getChannel(Player player) {
-        Injector injector = this.injectionFactory.fromPlayer(player, this.listener);
-        if (injector instanceof NettyChannelInjector) {
-            return ((NettyChannelInjector) injector).getWrappedChannel();
-        }
-
-        return null;
-    }
-
-    @Override
-    public void addPacketHandler(PacketType type, Set<ListenerOptions> options) {
-        if (!type.isAsyncForced() && (options == null || !options.contains(ListenerOptions.ASYNC))) {
-            this.mainThreadListeners.addType(type);
-        }
-
-        super.addPacketHandler(type, options);
-    }
-
-    @Override
-    public void removePacketHandler(PacketType type) {
-        this.mainThreadListeners.removeType(type);
-        super.removePacketHandler(type);
-    }
-}

src/main/java/com/comphenix/protocol/injector/packet/AbstractPacketInjector.java

@@ -1,42 +0,0 @@
-package com.comphenix.protocol.injector.packet;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.concurrency.PacketTypeSet;
-import com.comphenix.protocol.events.ListenerOptions;
-import java.util.Set;
-
-public abstract class AbstractPacketInjector implements PacketInjector {
-
-    private final PacketTypeSet inboundFilters;
-
-    public AbstractPacketInjector(PacketTypeSet inboundFilters) {
-        this.inboundFilters = inboundFilters;
-    }
-
-    @Override
-    public boolean addPacketHandler(PacketType type, Set<ListenerOptions> options) {
-        this.inboundFilters.addType(type);
-        return true;
-    }
-
-    @Override
-    public boolean removePacketHandler(PacketType type) {
-        this.inboundFilters.removeType(type);
-        return true;
-    }
-
-    @Override
-    public boolean hasPacketHandler(PacketType type) {
-        return this.inboundFilters.contains(type);
-    }
-
-    @Override
-    public Set<PacketType> getPacketHandlers() {
-        return this.inboundFilters.values();
-    }
-
-    @Override
-    public void cleanupAll() {
-        this.inboundFilters.clear();
-    }
-}

src/main/java/com/comphenix/protocol/injector/packet/KnownPacketData.java

@@ -0,0 +1,13 @@
+package com.comphenix.protocol.injector.packet;
+
+public final class KnownPacketData {
+    public static final byte[] SCOREBOARD_OBJECTIVE = {
+        4, 84, 101, 115, 116, 1
+    };
+
+    public static final byte[] MAP_CHUNK = {
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0A,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00
+    };
+}

src/main/java/com/comphenix/protocol/injector/packet/PacketInjector.java

@@ -1,71 +0,0 @@
-package com.comphenix.protocol.injector.packet;
-
-import java.util.Set;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.events.ListenerOptions;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-import org.bukkit.entity.Player;
-
-/**
- * Represents an incoming packet injector.
- *
- * @author Kristian
- */
-public interface PacketInjector {
-
-    /**
-     * Start intercepting packets with the given packet type.
-     *
-     * @param type    - the type of the packets to start intercepting.
-     * @param options - any listener options.
-     * @return TRUE if we didn't already intercept these packets, FALSE otherwise.
-     */
-    boolean addPacketHandler(PacketType type, Set<ListenerOptions> options);
-
-    /**
-     * Stop intercepting packets with the given packet type.
-     *
-     * @param type - the type of the packets to stop intercepting.
-     * @return TRUE if we successfuly stopped intercepting a given packet ID, FALSE otherwise.
-     */
-    boolean removePacketHandler(PacketType type);
-
-    /**
-     * Determine if packets with the given packet type is being intercepted.
-     *
-     * @param type - the packet type to lookup.
-     * @return TRUE if we do, FALSE otherwise.
-     */
-    boolean hasPacketHandler(PacketType type);
-
-    /**
-     * Retrieve every intercepted packet type.
-     *
-     * @return Every intercepted packet type.
-     */
-    Set<PacketType> getPacketHandlers();
-
-    /**
-     * Let the packet listeners process the given packet.
-     *
-     * @param packet - a packet to process.
-     * @param client - the client that sent the packet.
-     * @return The resulting packet event.
-     */
-    PacketEvent packetReceived(PacketContainer packet, Player client);
-
-    /**
-     * Determine if we have packet listeners with the given type that must be executed on the main thread.
-     *
-     * @param type - the packet type.
-     * @return TRUE if we do, FALSE otherwise.
-     */
-    boolean hasMainThreadListener(PacketType type);
-
-    /**
-     * Perform any necessary cleanup before unloading ProtocolLib.
-     */
-    void cleanupAll();
-}

src/main/java/com/comphenix/protocol/injector/packet/PacketRegistry.java

@@ -19,44 +19,77 @@ package com.comphenix.protocol.injector.packet;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
+import javax.annotation.Nullable;
+
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.PacketType.Sender;
 import com.comphenix.protocol.ProtocolLogger;
+import com.comphenix.protocol.injector.packet.internal.ProtocolRegistry_1_20_5;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.reflect.StructureModifier;
+import com.comphenix.protocol.reflect.fuzzy.FuzzyClassContract;
 import com.comphenix.protocol.reflect.fuzzy.FuzzyFieldContract;
+import com.comphenix.protocol.reflect.fuzzy.FuzzyMethodContract;
 import com.comphenix.protocol.utility.MinecraftReflection;
 import com.comphenix.protocol.utility.MinecraftVersion;
+import com.comphenix.protocol.wrappers.WrappedStreamCodec;
 
 /**
  * Static packet registry in Minecraft.
+ * 
  * @author Kristian
  */
 public class PacketRegistry {
     // Whether or not the registry has been initialized
     private static volatile boolean INITIALIZED = false;
 
+    static void reset() {
+        synchronized (registryLock) {
+            INITIALIZED = false;
+        }
+    }
+
     /**
      * Represents a register we are currently building.
+     * 
      * @author Kristian
      */
-    protected static class Register {
+    public static class Register {
         // The main lookup table
         final Map<PacketType, Optional<Class<?>>> typeToClass = new ConcurrentHashMap<>();
+
         final Map<Class<?>, PacketType> classToType = new ConcurrentHashMap<>();
+        final Map<Class<?>, WrappedStreamCodec> classToCodec = new ConcurrentHashMap<>();
+        final Map<PacketType.Protocol, Map<Class<?>, PacketType>> protocolClassToType = new ConcurrentHashMap<>();
 
         volatile Set<PacketType> serverPackets = new HashSet<>();
         volatile Set<PacketType> clientPackets = new HashSet<>();
         final List<MapContainer> containers = new ArrayList<>();
 
-        public Register() {}
+        private Register() {
+        }
+
+        public void registerPacket(PacketType type, Class<?> packetClass, Sender sender, WrappedStreamCodec codec) {
+            typeToClass.put(type, Optional.of(packetClass));
+            classToType.put(packetClass, type);
+
+            if (codec != null) {
+                classToCodec.put(packetClass, codec);
+            }
+
+            protocolClassToType.computeIfAbsent(type.getProtocol(), __ -> new ConcurrentHashMap<>()).put(packetClass, type);
 
-        public void registerPacket(PacketType type, Class<?> clazz, Sender sender) {
-            typeToClass.put(type, Optional.of(clazz));
-            classToType.put(clazz, type);
             if (sender == Sender.CLIENT) {
                 clientPackets.add(type);
             } else {
@@ -70,6 +103,7 @@ public class PacketRegistry {
 
         /**
          * Determine if the current register is outdated.
+         * 
          * @return TRUE if it is, FALSE otherwise.
          */
         public boolean isOutdated() {
@@ -115,7 +149,8 @@ public class PacketRegistry {
                 modifier = new StructureModifier<>(protocol.getClass().getSuperclass());
             }
 
-            StructureModifier<Map<Object, Map<Integer, Class<?>>>> maps = modifier.withTarget(protocol).withType(Map.class);
+            StructureModifier<Map<Object, Map<Integer, Class<?>>>> maps = modifier.withTarget(protocol)
+                    .withType(Map.class);
             for (Map.Entry<Object, Map<Integer, Class<?>>> entry : maps.read(0).entrySet()) {
                 String direction = entry.getKey().toString();
                 if (direction.contains("CLIENTBOUND")) { // Sent by Server
@@ -150,7 +185,7 @@ public class PacketRegistry {
     }
 
     @SuppressWarnings("unchecked")
-    private static synchronized Register createNewRegister() {
+    private static synchronized Register createRegisterV1_15_0() {
         Object[] protocols = ENUM_PROTOCOL.getEnumConstants();
 
         // ID to Packet class maps
@@ -158,18 +193,17 @@ public class PacketRegistry {
         final Map<Object, Map<Class<?>, Integer>> clientMaps = new LinkedHashMap<>();
 
         Register result = new Register();
+
         Field mainMapField = null;
         Field packetMapField = null;
+        Field holderClassField = null; // only 1.20.2+
 
         // Iterate through the protocols
         for (Object protocol : protocols) {
             if (mainMapField == null) {
                 FuzzyReflection fuzzy = FuzzyReflection.fromClass(protocol.getClass(), true);
-                mainMapField = fuzzy.getField(FuzzyFieldContract.newBuilder()
-                        .banModifier(Modifier.STATIC)
-                        .requireModifier(Modifier.FINAL)
-                        .typeDerivedOf(Map.class)
-                        .build());
+                mainMapField = fuzzy.getField(FuzzyFieldContract.newBuilder().banModifier(Modifier.STATIC)
+                        .requireModifier(Modifier.FINAL).typeDerivedOf(Map.class).build());
                 mainMapField.setAccessible(true);
             }
 
@@ -184,19 +218,40 @@ public class PacketRegistry {
             for (Map.Entry<Object, Object> entry : directionMap.entrySet()) {
                 Object holder = entry.getValue();
                 if (packetMapField == null) {
-                    FuzzyReflection fuzzy = FuzzyReflection.fromClass(holder.getClass(), true);
-                    packetMapField = fuzzy.getField(FuzzyFieldContract.newBuilder()
-                            .banModifier(Modifier.STATIC)
-                            .requireModifier(Modifier.FINAL)
-                            .typeDerivedOf(Map.class)
-                            .build());
+                    Class<?> packetHolderClass = holder.getClass();
+                    if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
+                        FuzzyReflection holderFuzzy = FuzzyReflection.fromClass(packetHolderClass, true);
+                        holderClassField = holderFuzzy
+                                .getField(FuzzyFieldContract.newBuilder().banModifier(Modifier.STATIC)
+                                        .requireModifier(Modifier.FINAL)
+                                        .typeMatches(FuzzyClassContract.newBuilder().method(FuzzyMethodContract
+                                                .newBuilder().returnTypeExact(MinecraftReflection.getPacketClass())
+                                                .parameterCount(2).parameterExactType(int.class, 0).parameterExactType(
+                                                        MinecraftReflection.getPacketDataSerializerClass(), 1)
+                                                .build()).build())
+                                        .build());
+                        holderClassField.setAccessible(true);
+                        packetHolderClass = holderClassField.getType();
+                    }
+
+                    FuzzyReflection fuzzy = FuzzyReflection.fromClass(packetHolderClass, true);
+                    packetMapField = fuzzy.getField(FuzzyFieldContract.newBuilder().banModifier(Modifier.STATIC)
+                            .requireModifier(Modifier.FINAL).typeDerivedOf(Map.class).build());
                     packetMapField.setAccessible(true);
                 }
 
-                Map<Class<?>, Integer> packetMap;
+                Object holderInstance = holder;
+                if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
+                    try {
+                        holderInstance = holderClassField.get(holder);
+                    } catch (ReflectiveOperationException ex) {
+                        throw new RuntimeException("Failed to access packet map", ex);
+                    }
+                }
 
+                Map<Class<?>, Integer> packetMap;
                 try {
-                    packetMap = (Map<Class<?>, Integer>) packetMapField.get(holder);
+                    packetMap = (Map<Class<?>, Integer>) packetMapField.get(holderInstance);
                 } catch (ReflectiveOperationException ex) {
                     throw new RuntimeException("Failed to access packet map", ex);
                 }
@@ -213,13 +268,13 @@ public class PacketRegistry {
         // Maps we have to occasionally check have changed
         // TODO: Find equivalent in Object2IntMap
 
-        /* for (Object map : serverMaps.values()) {
-            result.containers.add(new MapContainer(map));
-        }
-
-        for (Object map : clientMaps.values()) {
-            result.containers.add(new MapContainer(map));
-        } */
+        /*
+         * for (Object map : serverMaps.values()) { result.containers.add(new
+         * MapContainer(map)); }
+         * 
+         * for (Object map : clientMaps.values()) { result.containers.add(new
+         * MapContainer(map)); }
+         */
 
         for (Object protocol : protocols) {
             Enum<?> enumProtocol = (Enum<?>) protocol;
@@ -237,9 +292,15 @@ public class PacketRegistry {
         return result;
     }
 
+    private static synchronized Register createRegisterV1_20_5() {
+        final Register result = new Register();
+        ProtocolRegistry_1_20_5.fillRegister(result);
+        return result;
+    }
+
     /**
-     * Reverses a key->value map to value->key
-     * Non-deterministic behavior when multiple keys are mapped to the same value
+     * Reverses a key->value map to value->key Non-deterministic behavior when
+     * multiple keys are mapped to the same value
      */
     private static <K, V> Map<V, K> reverse(Map<K, V> map) {
         Map<V, K> newMap = new HashMap<>(map.size());
@@ -249,7 +310,8 @@ public class PacketRegistry {
         return newMap;
     }
 
-    protected static void associatePackets(Register register, Map<Integer, Class<?>> lookup, PacketType.Protocol protocol, Sender sender) {
+    protected static void associatePackets(Register register, Map<Integer, Class<?>> lookup,
+            PacketType.Protocol protocol, Sender sender) {
         for (Map.Entry<Integer, Class<?>> entry : lookup.entrySet()) {
             int packetId = entry.getKey();
             Class<?> packetClass = entry.getValue();
@@ -257,7 +319,7 @@ public class PacketRegistry {
             PacketType type = PacketType.fromCurrent(protocol, sender, packetId, packetClass);
 
             try {
-                register.registerPacket(type, packetClass, sender);
+                register.registerPacket(type, packetClass, sender, null);
             } catch (Exception ex) {
                 ProtocolLogger.debug("Encountered an exception associating packet " + type, ex);
             }
@@ -278,7 +340,7 @@ public class PacketRegistry {
     /**
      * Initializes the packet registry.
      */
-    private static void initialize() {
+    static void initialize() {
         if (INITIALIZED) {
             return;
         }
@@ -288,8 +350,10 @@ public class PacketRegistry {
                 return;
             }
 
-            if (MinecraftVersion.BEE_UPDATE.atOrAbove()) {
-                REGISTER = createNewRegister();
+            if (MinecraftVersion.v1_20_5.atOrAbove()) {
+                REGISTER = createRegisterV1_20_5();
+            } else if (MinecraftVersion.BEE_UPDATE.atOrAbove()) {
+                REGISTER = createRegisterV1_15_0();
             } else {
                 REGISTER = createOldRegister();
             }
@@ -298,8 +362,21 @@ public class PacketRegistry {
         }
     }
 
+    /**
+     * Returns the wrapped stream codec to de-/serialize the given packet class
+     * 
+     * @param packetClass - the packet class
+     * @return wrapped stream codec if existing, otherwise <code>null</code>
+     */
+    @Nullable
+    public static WrappedStreamCodec getStreamCodec(Class<?> packetClass) {
+        initialize();
+        return REGISTER.classToCodec.get(packetClass);
+    }
+
     /**
      * Determine if the given packet type is supported on the current server.
+     * 
      * @param type - the type to check.
      * @return TRUE if it is, FALSE otherwise.
      */
@@ -310,6 +387,7 @@ public class PacketRegistry {
 
     /**
      * Retrieve every known and supported server packet type.
+     * 
      * @return Every server packet type.
      */
     public static Set<PacketType> getServerPacketTypes() {
@@ -318,9 +396,10 @@ public class PacketRegistry {
 
         return Collections.unmodifiableSet(REGISTER.serverPackets);
     }
-    
+
     /**
      * Retrieve every known and supported server packet type.
+     * 
      * @return Every server packet type.
      */
     public static Set<PacketType> getClientPacketTypes() {
@@ -338,7 +417,8 @@ public class PacketRegistry {
                         && !Modifier.isAbstract(clazz.getModifiers())) {
                     return clazz;
                 }
-            } catch (Exception ignored) {}
+            } catch (Exception ignored) {
+            }
         }
 
         return null;
@@ -347,8 +427,9 @@ public class PacketRegistry {
     /**
      * Retrieves the correct packet class from a given type.
      *
-     * @param type - the packet type.
-     * @param forceVanilla - whether or not to look for vanilla classes, not injected classes.
+     * @param type         - the packet type.
+     * @param forceVanilla - whether or not to look for vanilla classes, not
+     *                     injected classes.
      * @return The associated class.
      * @deprecated forceVanilla no longer has any effect
      */
@@ -363,7 +444,7 @@ public class PacketRegistry {
         // Try the lookup first (may be null, so check contains)
         Optional<Class<?>> res = REGISTER.typeToClass.get(type);
         if (res != null) {
-            if(res.isPresent() && MinecraftReflection.isBundleDelimiter(res.get())) {
+            if (res.isPresent() && MinecraftReflection.isBundleDelimiter(res.get())) {
                 return MinecraftReflection.getPackedBundlePacketClass();
             }
             return res;
@@ -372,21 +453,25 @@ public class PacketRegistry {
         // Then try looking up the class names
         Class<?> clazz = searchForPacket(type.getClassNames());
         if (clazz != null) {
-            // we'd like for it to be associated correctly from the get-go; this is OK on older versions though
-            ProtocolLogger.warnAbove(type.getCurrentVersion(), "Updating associated class for {0} to {1}", type.name(), clazz);
+            // we'd like for it to be associated correctly from the get-go; this is OK on
+            // older versions though
+            ProtocolLogger.warnAbove(type.getCurrentVersion(), "Updating associated class for {0} to {1}", type.name(),
+                    clazz);
         }
 
         // cache it for next time
         associate(type, clazz);
-        if(clazz != null && MinecraftReflection.isBundleDelimiter(clazz)) {
-            clazz = MinecraftReflection.getPackedBundlePacketClass().orElseThrow(() -> new IllegalStateException("Packet bundle class not found."));
+        if (clazz != null && MinecraftReflection.isBundleDelimiter(clazz)) {
+            clazz = MinecraftReflection.getPackedBundlePacketClass()
+                    .orElseThrow(() -> new IllegalStateException("Packet bundle class not found."));
         }
         return Optional.ofNullable(clazz);
     }
 
     /**
-     * Get the packet class associated with a given type. First attempts to read from the
-     * type-to-class mapping, and tries
+     * Get the packet class associated with a given type. First attempts to read
+     * from the type-to-class mapping, and tries
+     * 
      * @param type the packet type
      * @return The associated class
      */
@@ -397,21 +482,54 @@ public class PacketRegistry {
 
     /**
      * Retrieve the packet type of a given packet.
+     * 
      * @param packet - the class of the packet.
      * @return The packet type, or NULL if not found.
+     * @deprecated major issues due to packets with shared classes being registered
+     *             in multiple states.
      */
+    @Deprecated
     public static PacketType getPacketType(Class<?> packet) {
         initialize();
 
         if (MinecraftReflection.isBundlePacket(packet)) {
             return PacketType.Play.Server.BUNDLE;
         }
-        
+
         return REGISTER.classToType.get(packet);
     }
-    
+
+    /**
+     * Retrieve the associated packet type for a packet class in the given protocol
+     * state.
+     *
+     * @param protocol the protocol state to retrieve the packet from.
+     * @param packet   the class identifying the packet type.
+     * @return the packet type associated with the given class in the given protocol
+     *         state, or null if not found.
+     */
+    public static PacketType getPacketType(PacketType.Protocol protocol, Class<?> packet) {
+        initialize();
+        if (MinecraftReflection.isBundlePacket(packet)) {
+            return PacketType.Play.Server.BUNDLE;
+        }
+
+        /*
+         * Reverts https://github.com/dmulloy2/ProtocolLib/pull/2568 for server versions 1.8 to 1.20.1.
+         *
+         * Since packet classes are not shared for these versions,
+         * the protocol state is not needed to determine the packet type from class.
+         */
+        if (!MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
+            return getPacketType(packet);
+        }
+        Map<Class<?>, PacketType> classToTypesForProtocol = REGISTER.protocolClassToType.get(protocol);
+        return classToTypesForProtocol == null ? null : classToTypesForProtocol.get(packet);
+    }
+
     /**
      * Retrieve the packet type of a given packet.
+     * 
      * @param packet - the class of the packet.
      * @param sender - the sender of the packet, or NULL.
      * @return The packet type, or NULL if not found.
@@ -421,4 +539,4 @@ public class PacketRegistry {
     public static PacketType getPacketType(Class<?> packet, Sender sender) {
         return getPacketType(packet);
     }
-}
+}

src/main/java/com/comphenix/protocol/injector/packet/internal/IdCodecWrapper.java

@@ -0,0 +1,71 @@
+package com.comphenix.protocol.injector.packet.internal;
+
+import java.util.Arrays;
+import java.util.List;
+
+import com.comphenix.protocol.reflect.FuzzyReflection;
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.FieldAccessor;
+import com.comphenix.protocol.reflect.accessors.MethodAccessor;
+import com.comphenix.protocol.reflect.fuzzy.FuzzyFieldContract;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.wrappers.AbstractWrapper;
+import com.comphenix.protocol.wrappers.WrappedStreamCodec;
+
+/**
+ * Class only works for version 1.20.5+
+ */
+public class IdCodecWrapper extends AbstractWrapper {
+
+    private static final Class<?> ID_CODEC_CLASS;
+    private static final FieldAccessor BY_ID_ACCESSOR;
+
+    private static final Class<?> ID_CODEC_ENTRY_CLASS;
+    private static final MethodAccessor ENTRY_TYPE_ACCESSOR;
+    private static final MethodAccessor ENTRY_SERIALIZER_ACCESSOR;
+
+    static {
+        ID_CODEC_CLASS = MinecraftReflection.getMinecraftClass("network.codec.IdDispatchCodec");
+        BY_ID_ACCESSOR = Accessors.getFieldAccessor(FuzzyReflection.fromClass(ID_CODEC_CLASS, true)
+                .getField(FuzzyFieldContract.newBuilder().typeDerivedOf(List.class).build()));
+
+        ID_CODEC_ENTRY_CLASS = Arrays.stream(ID_CODEC_CLASS.getNestMembers())
+            .filter(Class::isRecord)
+            .findFirst()
+            .orElseThrow(() -> new RuntimeException("Failed to find entry class for: " + ID_CODEC_CLASS));
+
+        FuzzyReflection entryReflection = FuzzyReflection.fromClass(ID_CODEC_ENTRY_CLASS, true);
+        ENTRY_TYPE_ACCESSOR = Accessors.getMethodAccessor(entryReflection
+                .getMethodByReturnTypeAndParameters("type", Object.class, new Class[0]));
+        ENTRY_SERIALIZER_ACCESSOR = Accessors.getMethodAccessor(entryReflection
+                .getMethodByReturnTypeAndParameters("serializer", MinecraftReflection.getStreamCodecClass(), new Class[0]));
+    }
+
+    public IdCodecWrapper(Object handle) {
+        super(ID_CODEC_CLASS);
+        setHandle(handle);
+    }
+
+    public List<Entry> getById() {
+        // list represents a packet-id to {type, codec} lookup
+        List<?> byId = (List<?>) BY_ID_ACCESSOR.get(this.handle);
+        return byId.stream().map(Entry::new).toList();
+    }
+
+    public class Entry extends AbstractWrapper {
+
+        public Entry(Object handle) {
+            super(ID_CODEC_ENTRY_CLASS);
+            setHandle(handle);
+        }
+
+        public Object type() {
+            return ENTRY_TYPE_ACCESSOR.invoke(this.handle);
+        }
+
+        public WrappedStreamCodec serializer() {
+            Object serializer = ENTRY_SERIALIZER_ACCESSOR.invoke(this.handle);
+            return new WrappedStreamCodec(serializer);
+        }
+    }
+}

src/main/java/com/comphenix/protocol/injector/packet/internal/ProtocolContexts.java

@@ -0,0 +1,44 @@
+package com.comphenix.protocol.injector.packet.internal;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+
+import com.comphenix.protocol.utility.MinecraftReflection;
+
+/**
+ * Class only works for version 1.21.5+
+ */
+public class ProtocolContexts {
+
+    private static final Class<?> GAME_PROTOCOL_CONTEXT_CLASS;
+
+    static {
+        GAME_PROTOCOL_CONTEXT_CLASS = MinecraftReflection.getNullableNMS(
+                "network.protocol.game.GameProtocols$a" /*Spigot Mapping*/,
+                "network.protocol.game.GameProtocols$Context" /*Mojang Mapping*/);
+    }
+
+    public static Object createGameProtocolContext() {
+        return createContext(GAME_PROTOCOL_CONTEXT_CLASS, (proxy, method, args) -> {
+            if (method.getName().equals("hasInfiniteMaterials") || (method.getReturnType() == boolean.class && method.getParameterCount() == 0)) {
+                return true;
+            }
+            return null;
+        });
+    }
+
+    private static Object createContext(Class<?> interfaceClass, InvocationHandler handler) {
+    	if (interfaceClass == null) {
+    		return null;
+    	}
+
+        return Proxy.newProxyInstance(ProtocolContexts.class.getClassLoader(), new Class[] { interfaceClass }, new InvocationHandler() {
+
+            @Override
+            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+                return handler.invoke(proxy, method, args);
+            }
+        });
+    }
+}

src/main/java/com/comphenix/protocol/injector/packet/internal/ProtocolInfoWrapper.java

@@ -0,0 +1,102 @@
+package com.comphenix.protocol.injector.packet.internal;
+
+import java.util.Objects;
+import java.util.function.Function;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.reflect.FuzzyReflection;
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.MethodAccessor;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.wrappers.AbstractWrapper;
+
+/**
+ * Class only works for version 1.20.5+
+ */
+public class ProtocolInfoWrapper extends AbstractWrapper {
+
+    private static final @NotNull Class<?> SIMPLE_UNBOUND_PROTOCOL_CLASS;
+    private static final @NotNull MethodAccessor BIND_SIMPLE_ACCESSOR;
+
+    private static final @Nullable Class<?> UNBOUND_PROTOCOL_CLASS;
+    private static final @Nullable MethodAccessor BIND_CONTEXT_ACCESSOR;
+
+    private static final @NotNull MethodAccessor ID_ACCESSOR;
+    private static final @NotNull MethodAccessor FLOW_ACCESSOR;
+    private static final @NotNull MethodAccessor CODEC_ACCESSOR;
+
+    static {
+        SIMPLE_UNBOUND_PROTOCOL_CLASS = MinecraftReflection.getMinecraftClass(
+                "network.protocol.SimpleUnboundProtocol" /* 1.21.5+ */,
+                "network.protocol.UnboundProtocol" /* 1.21.8+ Alternative */,
+                "network.ProtocolInfo$a" /* Spigot Mappings */,
+                "network.ProtocolInfo$Unbound" /* Mojang Mappings */);
+        BIND_SIMPLE_ACCESSOR = Accessors.getMethodAccessor(FuzzyReflection.fromClass(SIMPLE_UNBOUND_PROTOCOL_CLASS)
+                .getMethodByReturnTypeAndParameters("bind", MinecraftReflection.getProtocolInfoClass(), new Class[] { Function.class }));
+
+        UNBOUND_PROTOCOL_CLASS = MinecraftReflection.getNullableNMS("network.protocol.UnboundProtocol");
+        if (UNBOUND_PROTOCOL_CLASS != null) {
+            BIND_CONTEXT_ACCESSOR = Accessors.getMethodAccessor(FuzzyReflection.fromClass(UNBOUND_PROTOCOL_CLASS)
+                    .getMethodByReturnTypeAndParameters("bind", MinecraftReflection.getProtocolInfoClass(), new Class[] { Function.class, Object.class }));
+        } else {
+            BIND_CONTEXT_ACCESSOR = null;
+        }
+
+        FuzzyReflection protocolInfoReflection = FuzzyReflection.fromClass(MinecraftReflection.getProtocolInfoClass());
+        ID_ACCESSOR = Accessors.getMethodAccessor(protocolInfoReflection
+                .getMethodByReturnTypeAndParameters("id", MinecraftReflection.getEnumProtocolClass(), new Class[0]));
+        FLOW_ACCESSOR = Accessors.getMethodAccessor(protocolInfoReflection
+                .getMethodByReturnTypeAndParameters("flow", MinecraftReflection.getPacketFlowClass(), new Class[0]));
+        CODEC_ACCESSOR = Accessors.getMethodAccessor(protocolInfoReflection
+                .getMethodByReturnTypeAndParameters("codec", MinecraftReflection.getStreamCodecClass(), new Class[0]));
+    }
+
+    public static boolean isUnboundProtocol(Object protocol) {
+        return SIMPLE_UNBOUND_PROTOCOL_CLASS.isInstance(protocol) || (UNBOUND_PROTOCOL_CLASS != null && UNBOUND_PROTOCOL_CLASS.isInstance(protocol));
+    }
+
+    public static ProtocolInfoWrapper fromUnbound(Object protocol, Object context) {
+        // bind to identity function in-order to map directly to FriendlyByteBuf instead of ByteBuf
+
+        if (SIMPLE_UNBOUND_PROTOCOL_CLASS.isInstance(protocol)) {
+            Object protocolInfo = BIND_SIMPLE_ACCESSOR.invoke(protocol, Function.identity());
+            return new ProtocolInfoWrapper(protocolInfo);
+        }
+
+        if (UNBOUND_PROTOCOL_CLASS != null && UNBOUND_PROTOCOL_CLASS.isInstance(protocol)) {
+            Object protocolInfo = BIND_CONTEXT_ACCESSOR.invoke(protocol, Function.identity(), Objects.requireNonNull(context));
+            return new ProtocolInfoWrapper(protocolInfo);
+        }
+
+        throw new RuntimeException("Unknown protocol implementation: " + protocol);
+    }
+
+    private ProtocolInfoWrapper(Object handle) {
+        super(MinecraftReflection.getProtocolInfoClass());
+        setHandle(handle);
+    }
+
+    public PacketType.Protocol id() {
+        Object protocol = ID_ACCESSOR.invoke(this.handle);
+        return PacketType.Protocol.fromVanilla((Enum<?>) protocol);
+    }
+
+    public PacketType.Sender flow() {
+        String packetFlow = FLOW_ACCESSOR.invoke(this.handle).toString();
+
+        if (packetFlow.contains("CLIENTBOUND")) {
+            return PacketType.Sender.SERVER;
+        } else if (packetFlow.contains("SERVERBOUND")) {
+            return PacketType.Sender.CLIENT;
+        }
+
+        throw new RuntimeException("Unknown packet flow: " + packetFlow);
+    }
+
+    public IdCodecWrapper codec() {
+        return new IdCodecWrapper(CODEC_ACCESSOR.invoke(this.handle));
+    }
+}

src/main/java/com/comphenix/protocol/injector/packet/internal/ProtocolRegistry_1_20_5.java

@@ -0,0 +1,150 @@
+package com.comphenix.protocol.injector.packet.internal;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Supplier;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLogger;
+import com.comphenix.protocol.injector.packet.PacketRegistry.Register;
+import com.comphenix.protocol.utility.MinecraftReflection;
+
+/**
+ * Class only works for version 1.20.5+
+ */
+public class ProtocolRegistry_1_20_5 {
+
+    private static final Class<?> PACKET_TYPE_CLASS = MinecraftReflection.getMinecraftClass("network.protocol.PacketType");;
+
+    /**
+     * List of all class containing PacketTypes
+     */
+    public static final List<String> PACKET_TYPES_CLASS_NAMES = List.of(
+            "common.CommonPacketTypes",
+            "configuration.ConfigurationPacketTypes",
+            "cookie.CookiePacketTypes",
+            "game.GamePacketTypes",
+            "handshake.HandshakePacketTypes",
+            "login.LoginPacketTypes",
+            "ping.PingPacketTypes",
+            "status.StatusPacketTypes");
+
+    /**
+     * List of all class containing ProtocolInfos
+     */
+    public static final List<Protocol> PROTOCOLS = List.of(
+            new Protocol("configuration.ConfigurationProtocols", null),
+            new Protocol("game.GameProtocols", ProtocolContexts::createGameProtocolContext),
+            new Protocol("handshake.HandshakeProtocols", null),
+            new Protocol("login.LoginProtocols", null),
+            new Protocol("status.StatusProtocols", null));
+
+    public static void fillRegister(Register register) {
+        final Map<Object, Class<?>> packetTypeMap = getPacketTypes();
+
+        for (Protocol protocol : PROTOCOLS) {
+            Class<?> protocolClass = MinecraftReflection.getNullableNMS("network.protocol." + protocol.className());
+            if (protocolClass == null) {
+                ProtocolLogger.debug("Can't find protocol class: {0}, will skip it", protocol);
+                continue;
+            }
+
+            for (Field field : protocolClass.getDeclaredFields()) {
+                try {
+                    // ignore none static and final fields
+                    if (!Modifier.isFinal(field.getModifiers()) || !Modifier.isStatic(field.getModifiers())) {
+                        continue;
+                    }
+
+                    Object fieldValue = field.get(null);
+                    
+                    // Skip any field that isn't a unbound ProtocolInfo.
+                    // We need to bind the ProtocolInfo ourself as we apply our own stream mapping
+                    // inside the ProtocolInfoWrapper::fromUnbound method
+                    if (!ProtocolInfoWrapper.isUnboundProtocol(fieldValue)) {
+                        continue;
+                    }
+
+                    // create optional context object to bind protocol to
+                    Object context = protocol.context() != null
+                            ? protocol.context().get()
+                            : null;
+
+                    // wrap bound protocol info for ease of use
+                    ProtocolInfoWrapper protocolInfo = ProtocolInfoWrapper.fromUnbound(fieldValue, context);
+                    PacketType.Protocol packetProtocol = protocolInfo.id();
+                    PacketType.Sender packetSender = protocolInfo.flow();
+
+                    // register each packet to Register instance
+                    List<IdCodecWrapper.Entry> entries = protocolInfo.codec().getById();
+                    for (int id = 0; id < entries.size(); id++) {
+                        IdCodecWrapper.Entry entry = entries.get(id);
+
+                        Class<?> packetClass = packetTypeMap.get(entry.type());
+                        if (packetClass == null) {
+                            throw new RuntimeException("packetType missing packet " + entry.type());
+                        }
+
+                        PacketType packetType = PacketType.fromCurrent(packetProtocol, packetSender, id, packetClass);
+                        // TODO(fix): validate that every codec expects FriendlyByteBuf
+                        register.registerPacket(packetType, packetClass, packetSender, entry.serializer());
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                    continue;
+                }
+            }
+        }
+    }
+
+    /**
+     * Returns a PacketType to packet class lookup map
+     */
+    private static Map<Object, Class<?>> getPacketTypes() {
+        Map<Object, Class<?>> packetTypeMap = new HashMap<>();
+
+        for (String packetTypesClassName : PACKET_TYPES_CLASS_NAMES) {
+            Class<?> packetTypesClass = MinecraftReflection.getNullableNMS("network.protocol." + packetTypesClassName);
+            if (packetTypesClass == null) {
+                ProtocolLogger.debug("Can't find PacketType class: {0}, will skip it", packetTypesClassName);
+                continue;
+            }
+
+            // check every field for "static final PacketType<?>"
+            for (Field field : packetTypesClass.getDeclaredFields()) {
+                try {
+                    if (!Modifier.isFinal(field.getModifiers()) || !Modifier.isStatic(field.getModifiers())) {
+                        continue;
+                    }
+
+                    Object packetType = field.get(null);
+                    if (!PACKET_TYPE_CLASS.isInstance(packetType)) {
+                        continue;
+                    }
+
+                    // retrieve the generic type T of the PacketType<T> field
+                    Type packet = ((ParameterizedType) field.getGenericType()).getActualTypeArguments()[0];
+                    if (packet instanceof Class<?>) {
+                        packetTypeMap.put(packetType, (Class<?>) packet);
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                    continue;
+                }
+            }
+        }
+
+        return packetTypeMap;
+    }
+
+    private record Protocol(@NotNull String className, @Nullable Supplier<Object> context) {
+    }
+}

src/main/java/com/comphenix/protocol/injector/player/AbstractPlayerInjectionHandler.java

@@ -1,51 +0,0 @@
-package com.comphenix.protocol.injector.player;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.concurrency.PacketTypeSet;
-import com.comphenix.protocol.events.ListenerOptions;
-import com.comphenix.protocol.events.PacketListener;
-import java.util.Set;
-
-public abstract class AbstractPlayerInjectionHandler implements PlayerInjectionHandler {
-
-    private final PacketTypeSet sendingFilters;
-
-    public AbstractPlayerInjectionHandler(PacketTypeSet sendingFilters) {
-        this.sendingFilters = sendingFilters;
-    }
-
-    @Override
-    public void addPacketHandler(PacketType type, Set<ListenerOptions> options) {
-        this.sendingFilters.addType(type);
-    }
-
-    @Override
-    public void removePacketHandler(PacketType type) {
-        this.sendingFilters.removeType(type);
-    }
-
-    @Override
-    public Set<PacketType> getSendingFilters() {
-        return this.sendingFilters.values();
-    }
-
-    @Override
-    public void close() {
-        this.sendingFilters.clear();
-    }
-
-    @Override
-    public boolean canReceivePackets() {
-        return true;
-    }
-
-    @Override
-    public void checkListener(PacketListener listener) {
-        // They're all fine!
-    }
-
-    @Override
-    public void checkListener(Set<PacketListener> listeners) {
-        // Yes, really
-    }
-}

src/main/java/com/comphenix/protocol/injector/player/PlayerInjectionHandler.java

@@ -1,149 +0,0 @@
-package com.comphenix.protocol.injector.player;
-
-import java.util.Set;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.events.ListenerOptions;
-import com.comphenix.protocol.events.NetworkMarker;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketListener;
-import io.netty.channel.Channel;
-import org.bukkit.entity.Player;
-
-public interface PlayerInjectionHandler {
-
-    /**
-     * Retrieve the protocol version of the given player.
-     *
-     * @param player - the player.
-     * @return The protocol version, or {@link Integer#MIN_VALUE}.
-     */
-    int getProtocolVersion(Player player);
-
-    /**
-     * Add an underlying packet handler of the given type.
-     *
-     * @param type    - packet type to register.
-     * @param options - any specified listener options.
-     */
-    void addPacketHandler(PacketType type, Set<ListenerOptions> options);
-
-    /**
-     * Remove an underlying packet handler of this type.
-     *
-     * @param type - packet type to unregister.
-     */
-    void removePacketHandler(PacketType type);
-
-    /**
-     * Initialize a player hook, allowing us to read server packets.
-     * <p>
-     * This call will  be ignored if there's no listener that can receive the given events.
-     *
-     * @param player   - player to hook.
-     * @param strategy - how to handle injection conflicts.
-     */
-    void injectPlayer(Player player, ConflictStrategy strategy);
-
-    /**
-     * Invoke special routines for handling disconnect before a player is uninjected.
-     *
-     * @param player - player to process.
-     */
-    void handleDisconnect(Player player);
-
-    /**
-     * Uninject the given player.
-     *
-     * @param player - player to uninject.
-     * @return TRUE if a player has been uninjected, FALSE otherwise.
-     */
-    boolean uninjectPlayer(Player player);
-
-    /**
-     * Send the given packet to the given receiver.
-     *
-     * @param receiver - the player receiver.
-     * @param packet   - the packet to send.
-     * @param marker   - network marker.
-     * @param filters  - whether or not to invoke the packet filters.
-     */
-    void sendServerPacket(Player receiver, PacketContainer packet, NetworkMarker marker, boolean filters);
-
-    /**
-     * Process a packet as if it were sent by the given player.
-     *
-     * @param player   - the sender.
-     * @param mcPacket - the packet to process.
-     */
-    void receiveClientPacket(Player player, Object mcPacket);
-
-    /**
-     * Ensure that packet readers are informed of this player reference.
-     *
-     * @param player - the player to update.
-     */
-    void updatePlayer(Player player);
-
-    /**
-     * Determine if the given listeners are valid.
-     *
-     * @param listeners - listeners to check.
-     */
-    void checkListener(Set<PacketListener> listeners);
-
-    /**
-     * Determine if a listener is valid or not.
-     * <p>
-     * If not, a warning will be printed to the console.
-     *
-     * @param listener - listener to check.
-     */
-    void checkListener(PacketListener listener);
-
-    /**
-     * Retrieve the current list of registered sending listeners.
-     *
-     * @return List of the sending listeners's packet IDs.
-     */
-    Set<PacketType> getSendingFilters();
-
-    /**
-     * Whether or not this player injection handler can also receive packets.
-     *
-     * @return TRUE if it can, FALSE otherwise.
-     */
-    boolean canReceivePackets();
-
-    /**
-     * Close any lingering proxy injections.
-     */
-    void close();
-
-    /**
-     * Determine if we have packet listeners with the given type that must be executed on the main thread.
-     *
-     * @param type - the packet type.
-     * @return TRUE if we do, FALSE otherwise.
-     */
-    boolean hasMainThreadListener(PacketType type);
-
-    Channel getChannel(Player player);
-
-    /**
-     * How to handle a previously existing player injection.
-     *
-     * @author Kristian
-     */
-    enum ConflictStrategy {
-        /**
-         * Override it.
-         */
-        OVERRIDE,
-
-        /**
-         * Immediately exit.
-         */
-        BAIL_OUT;
-    }
-}

src/main/java/com/comphenix/protocol/injector/temporary/MinimalInjector.java

@@ -1,50 +0,0 @@
-package com.comphenix.protocol.injector.temporary;
-
-import com.comphenix.protocol.events.NetworkMarker;
-import java.net.SocketAddress;
-import org.bukkit.entity.Player;
-
-/**
- * Represents an injector that only gives access to a player's socket.
- *
- * @author Kristian
- */
-public interface MinimalInjector {
-
-    /**
-     * Retrieve the associated address of this player.
-     *
-     * @return The associated address.
-     */
-    SocketAddress getAddress();
-
-    /**
-     * Attempt to disconnect the current client.
-     *
-     * @param message - the message to display.
-     */
-    void disconnect(String message);
-
-    /**
-     * Send a packet to the client.
-     *
-     * @param packet   - server packet to send.
-     * @param marker   - the network marker.
-     * @param filtered - whether or not the packet will be filtered by our listeners.
-     */
-    void sendServerPacket(Object packet, NetworkMarker marker, boolean filtered);
-
-    /**
-     * Retrieve the hooked player.
-     *
-     * @return The hooked player.
-     */
-    Player getPlayer();
-
-    /**
-     * Determines if the player is currently connected.
-     *
-     * @return true if the player is connected.
-     */
-    boolean isConnected();
-}

src/main/java/com/comphenix/protocol/injector/temporary/TemporaryPlayer.java

@@ -1,5 +1,9 @@
 package com.comphenix.protocol.injector.temporary;
 
+import java.util.Objects;
+
+import com.comphenix.protocol.injector.netty.Injector;
+
 /**
  * A temporary player created by ProtocolLib when a true player instance does not exist.
  * <p>
@@ -8,15 +12,17 @@ package com.comphenix.protocol.injector.temporary;
  */
 public class TemporaryPlayer {
 
-    private volatile MinimalInjector injector;
+    protected volatile Injector injector;
 
-    MinimalInjector getInjector() {
+    public Injector getInjector() {
         return this.injector;
     }
 
-    void setInjector(MinimalInjector injector) {
-        if (injector == null) {
-            throw new IllegalArgumentException("Injector cannot be NULL.");
+    void setInjector(Injector injector) {
+        Objects.requireNonNull(injector, "injector can't be null");
+
+        if (this.injector != null) {
+            throw new IllegalStateException("Can't redefine injector for temporary player");
         }
 
         this.injector = injector;

src/main/java/com/comphenix/protocol/injector/temporary/TemporaryPlayerFactory.java

@@ -17,17 +17,20 @@
 
 package com.comphenix.protocol.injector.temporary;
 
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.utility.ByteBuddyFactory;
-import com.comphenix.protocol.utility.ChatExtensions;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Method;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.injector.netty.Injector;
+import com.comphenix.protocol.utility.ByteBuddyFactory;
+import com.comphenix.protocol.utility.ChatExtensions;
+
 import net.bytebuddy.description.ByteCodeElement;
-import net.bytebuddy.description.modifier.Visibility;
 import net.bytebuddy.dynamic.loading.ClassLoadingStrategy;
 import net.bytebuddy.dynamic.scaffold.subclass.ConstructorStrategy;
-import net.bytebuddy.implementation.FieldAccessor;
-import net.bytebuddy.implementation.MethodCall;
 import net.bytebuddy.implementation.MethodDelegation;
 import net.bytebuddy.implementation.bind.annotation.AllArguments;
 import net.bytebuddy.implementation.bind.annotation.FieldValue;
@@ -36,8 +39,6 @@ import net.bytebuddy.implementation.bind.annotation.RuntimeType;
 import net.bytebuddy.implementation.bind.annotation.This;
 import net.bytebuddy.matcher.ElementMatcher;
 import net.bytebuddy.matcher.ElementMatchers;
-import org.bukkit.Server;
-import org.bukkit.entity.Player;
 
 /**
  * Create fake player instances that represents pre-authenticated clients.
@@ -46,13 +47,15 @@ public class TemporaryPlayerFactory {
 
     private static final Constructor<? extends Player> PLAYER_CONSTRUCTOR = setupProxyPlayerConstructor();
 
+    private TemporaryPlayerFactory() {}
+
     /**
      * Retrieve the injector from a given player if it contains one.
      *
      * @param player - the player that may contain a reference to a player injector.
      * @return The referenced player injector, or NULL if none can be found.
      */
-    public static MinimalInjector getInjectorFromPlayer(Player player) {
+    public static Injector getInjectorFromPlayer(Player player) {
         if (player instanceof TemporaryPlayer) {
             return ((TemporaryPlayer) player).getInjector();
         }
@@ -65,7 +68,7 @@ public class TemporaryPlayerFactory {
      * @param player   - the player to update.
      * @param injector - the injector to store.
      */
-    public static void setInjectorInPlayer(Player player, MinimalInjector injector) {
+    public static void setInjectorForPlayer(Player player, Injector injector) {
         ((TemporaryPlayer) player).setInjector(injector);
     }
 
@@ -76,11 +79,10 @@ public class TemporaryPlayerFactory {
             public Object delegate(
                     @This Object obj,
                     @Origin Method method,
-                    @FieldValue("server") Server server,
+                    @FieldValue("injector") Injector injector,
                     @AllArguments Object... args
             ) throws Throwable {
                 String methodName = method.getName();
-                MinimalInjector injector = ((TemporaryPlayer) obj).getInjector();
 
                 if (injector == null) {
                     throw new IllegalStateException("Unable to find injector.");
@@ -92,7 +94,7 @@ public class TemporaryPlayerFactory {
                 } else if (methodName.equals("getAddress")) {
                     return injector.getAddress();
                 } else if (methodName.equals("getServer")) {
-                    return server;
+                    return Bukkit.getServer();
                 }
 
                 // Handle send message methods
@@ -144,21 +146,15 @@ public class TemporaryPlayerFactory {
 
         try {
             final Constructor<?> constructor = ByteBuddyFactory.getInstance()
-                    .createSubclass(TemporaryPlayer.class, ConstructorStrategy.Default.NO_CONSTRUCTORS)
+                    .createSubclass(TemporaryPlayer.class, ConstructorStrategy.Default.DEFAULT_CONSTRUCTOR)
                     .name(TemporaryPlayerFactory.class.getPackage().getName() + ".TemporaryPlayerInvocationHandler")
                     .implement(Player.class)
-
-                    .defineField("server", Server.class, Visibility.PRIVATE)
-                    .defineConstructor(Visibility.PUBLIC)
-                    .withParameters(Server.class)
-                    .intercept(MethodCall.invoke(TemporaryPlayer.class.getDeclaredConstructor())
-                            .andThen(FieldAccessor.ofField("server").setsArgumentAt(0)))
                     .method(callbackFilter)
                     .intercept(implementation)
                     .make()
                     .load(ByteBuddyFactory.getInstance().getClassLoader(), ClassLoadingStrategy.Default.INJECTION)
                     .getLoaded()
-                    .getDeclaredConstructor(Server.class);
+                    .getDeclaredConstructor();
             return (Constructor<? extends Player>) constructor;
         } catch (NoSuchMethodException e) {
             throw new RuntimeException("Failed to find Temporary Player constructor!", e);
@@ -172,9 +168,9 @@ public class TemporaryPlayerFactory {
      * @param message  - a message.
      * @return Always NULL.
      */
-    private static Object sendMessage(MinimalInjector injector, String message) {
+    private static Object sendMessage(Injector injector, String message) {
         for (PacketContainer packet : ChatExtensions.createChatPackets(message)) {
-            injector.sendServerPacket(packet.getHandle(), null, false);
+            injector.sendClientboundPacket(packet.getHandle(), null, false);
         }
 
         return null;
@@ -197,27 +193,13 @@ public class TemporaryPlayerFactory {
      * Note that a temporary player has not yet been assigned a name, and thus cannot be
      * uniquely identified. Use the address instead.
      *
-     * @param server - the current server.
      * @return A temporary player instance.
      */
-    public Player createTemporaryPlayer(final Server server) {
+    public static Player createTemporaryPlayer() {
         try {
-            return PLAYER_CONSTRUCTOR.newInstance(server);
+            return PLAYER_CONSTRUCTOR.newInstance();
         } catch (ReflectiveOperationException exception) {
             throw new IllegalStateException("Unable to create temporary player", exception);
         }
     }
-
-    /**
-     * Construct a temporary player with the given associated socket injector.
-     *
-     * @param server   - the parent server.
-     * @param injector - the referenced socket injector.
-     * @return The temporary player.
-     */
-    public Player createTemporaryPlayer(Server server, MinimalInjector injector) {
-        Player temporary = this.createTemporaryPlayer(server);
-        ((TemporaryPlayer) temporary).setInjector(injector);
-        return temporary;
-    }
 }

src/main/java/com/comphenix/protocol/reflect/ObjectWriter.java

@@ -17,11 +17,6 @@
 
 package com.comphenix.protocol.reflect;
 
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.injector.StructureCache;
-import com.comphenix.protocol.injector.packet.PacketRegistry;
-import com.comphenix.protocol.utility.MinecraftReflection;
-import com.comphenix.protocol.utility.StreamSerializer;
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
 import java.util.HashMap;
@@ -46,18 +41,6 @@ public class ObjectWriter {
      * @return A structure modifier for the given type.
      */
     private StructureModifier<Object> getModifier(Class<?> type) {
-        Class<?> packetClass = MinecraftReflection.getPacketClass();
-
-        // Handle subclasses of the packet class with our custom structure cache, if possible
-        if (!type.equals(packetClass) && packetClass.isAssignableFrom(type)) {
-            // might be a packet, but some packets are not registered (for example PacketPlayInFlying, only the subtypes are present)
-            PacketType packetType = PacketRegistry.getPacketType(type);
-            if (packetType != null) {
-                // packet is present, delegate to the cache
-                return StructureCache.getStructure(packetType);
-            }
-        }
-
         // Create the structure modifier if we haven't already
         StructureModifier<Object> modifier = CACHE.get(type);
         if (modifier == null) {

src/main/java/com/comphenix/protocol/reflect/StructureModifier.java

@@ -17,15 +17,6 @@
 
 package com.comphenix.protocol.reflect;
 
-import com.comphenix.protocol.reflect.accessors.Accessors;
-import com.comphenix.protocol.reflect.accessors.FieldAccessor;
-import com.comphenix.protocol.reflect.instances.BannedGenerator;
-import com.comphenix.protocol.reflect.instances.DefaultInstances;
-import com.comphenix.protocol.reflect.instances.InstanceProvider;
-import com.comphenix.protocol.utility.MinecraftReflection;
-import com.google.common.collect.HashBasedTable;
-import com.google.common.collect.Table;
-
 import java.lang.ref.Reference;
 import java.lang.ref.SoftReference;
 import java.lang.reflect.Field;
@@ -43,6 +34,17 @@ import java.util.Optional;
 import java.util.function.UnaryOperator;
 import java.util.stream.Collectors;
 
+import com.comphenix.protocol.injector.StructureCache;
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.FieldAccessor;
+import com.comphenix.protocol.reflect.instances.BannedGenerator;
+import com.comphenix.protocol.reflect.instances.DefaultInstances;
+import com.comphenix.protocol.reflect.instances.InstanceProvider;
+import com.comphenix.protocol.utility.MinecraftReflection;
+
+import com.google.common.collect.HashBasedTable;
+import com.google.common.collect.Table;
+
 /**
  * Provides list-oriented access to the fields of a Minecraft packet.
  * <p>
@@ -142,9 +144,9 @@ public class StructureModifier<T> {
 
         for (FieldAccessor accessor : fields) {
             Field field = accessor.getField();
-            if (!field.getType().isPrimitive() && !Modifier.isFinal(field.getModifiers())) {
-                Object defaultInstance = DEFAULT_GENERATOR.getDefault(field.getType());
-                if (defaultInstance != null) {
+            if (!field.getType().isPrimitive()) {// && !Modifier.isFinal(field.getModifiers())) {
+                // if (DEFAULT_GENERATOR.hasDefault(field.getType())) {
+                if (StructureCache.canCreateInstance(field.getType())) {
                     requireDefaults.put(accessor, currentFieldIndex);
                 }
             }
@@ -396,13 +398,12 @@ public class StructureModifier<T> {
             // They must be null or messages will be blank
             Field field = accessor.getField();
             if (field.getType().getCanonicalName().equals("net.md_5.bungee.api.chat.BaseComponent[]")) {
-                accessor.set(this.target, null);
+                accessor.set(target, null);
                 continue;
             }
 
-            // get the default value and write the field
-            Object defaultValue = DEFAULT_GENERATOR.getDefault(field.getType());
-            accessor.set(this.target, defaultValue);
+            Object value = StructureCache.newInstance(field.getType());
+            accessor.set(target, value);
         }
 
         return this;

src/main/java/com/comphenix/protocol/reflect/accessors/ConstructorAccessor.java

@@ -4,6 +4,21 @@ import java.lang.reflect.Constructor;
 
 public interface ConstructorAccessor {
 
+    /**
+     * NoOp Accessor, does what is says: nothing.
+     */
+    static final ConstructorAccessor NO_OP_ACCESSOR = new ConstructorAccessor() {
+        @Override
+        public Object invoke(Object... args) {
+            return null;
+        }
+
+        @Override
+        public Constructor<?> getConstructor() {
+            return null;
+        }
+    };
+
     /**
      * Invoke the underlying constructor.
      *

src/main/java/com/comphenix/protocol/reflect/accessors/FieldAccessor.java

@@ -9,6 +9,25 @@ import java.lang.reflect.Field;
  */
 public interface FieldAccessor {
 
+    /**
+     * NoOp Accessor, does what is says: nothing.
+     */
+    static final FieldAccessor NO_OP_ACCESSOR = new FieldAccessor() {
+        @Override
+        public Object get(Object instance) {
+            return null;
+        }
+
+        @Override
+        public void set(Object instance, Object value) {
+        }
+
+        @Override
+        public Field getField() {
+            return null;
+        }
+    };
+
     /**
      * Retrieve the value of a field for a particular instance.
      *

src/main/java/com/comphenix/protocol/reflect/cloning/BukkitCloner.java

@@ -72,7 +72,7 @@ public class BukkitCloner implements Cloner {
     static {
         fromManual(MinecraftReflection::getItemStackClass, source ->
                 MinecraftReflection.getMinecraftItemStack(MinecraftReflection.getBukkitItemStack(source).clone()));
-        fromWrapper(MinecraftReflection::getDataWatcherClass, WrappedDataWatcher::new);
+        fromManual(MinecraftReflection::getDataWatcherClass, source -> new WrappedDataWatcher(source).deepClone().getHandle());
         fromConverter(MinecraftReflection::getBlockPositionClass, BlockPosition.getConverter());
         fromWrapper(MinecraftReflection::getServerPingClass, WrappedServerPing::fromHandle);
         fromConverter(MinecraftReflection::getMinecraftKeyClass, MinecraftKey.getConverter());
@@ -82,6 +82,8 @@ public class BukkitCloner implements Cloner {
         fromWrapper(MinecraftReflection::getIChatBaseComponentClass, WrappedChatComponent::fromHandle);
         fromWrapper(WrappedVillagerData::getNmsClass, WrappedVillagerData::fromHandle);
         fromConverter(MinecraftReflection::getSectionPositionClass, BukkitConverters.getSectionPositionConverter());
+        fromManual(MinecraftReflection::getAttributeSnapshotClass, source ->
+            WrappedAttribute.fromHandle(source).shallowClone().getHandle());
 
         try {
             fromManual(ComponentConverter::getBaseComponentArrayClass, source ->

src/main/java/com/comphenix/protocol/reflect/cloning/ImmutableDetector.java

@@ -62,12 +62,12 @@ public class ImmutableDetector implements Cloner {
         add(MinecraftReflection::getDataWatcherSerializerClass);
         add(MinecraftReflection::getBlockClass);
         add(MinecraftReflection::getItemClass);
-        add("sounds.SoundEffect", "sounds.SoundEvents", "SoundEffect");
+        add(MinecraftReflection::getSoundEffectClass);
 
         if (MinecraftVersion.AQUATIC_UPDATE.atOrAbove()) {
             add(MinecraftReflection::getFluidTypeClass);
             add(MinecraftReflection::getParticleTypeClass);
-            add("core.particles.Particle","core.particles.ParticleType", "Particle");
+            add(MinecraftReflection::getParticleClass);
         }
 
         if (MinecraftVersion.VILLAGE_UPDATE.atOrAbove()) {

src/main/java/com/comphenix/protocol/reflect/fuzzy/FuzzyMatchers.java

@@ -29,6 +29,26 @@ public class FuzzyMatchers {
         return (value, parent) -> value.isArray() && componentMatcher.isMatch(value.getComponentType(), parent);
     }
 
+    public static AbstractFuzzyMatcher<Class<?>> except(Class<?> clazz) {
+        return (value, parent) -> !clazz.isAssignableFrom(value);
+    }
+
+    public static AbstractFuzzyMatcher<Class<?>> assignable(Class<?> clazz) {
+        return (value, parent) -> clazz.isAssignableFrom(value);
+    }
+
+    @SafeVarargs
+    public static AbstractFuzzyMatcher<Class<?>> and(AbstractFuzzyMatcher<Class<?>>... matchers) {
+        return (value, parent) -> {
+            for (AbstractFuzzyMatcher<Class<?>> matcher : matchers) {
+                if (!matcher.isMatch(value, parent)) {
+                    return false;
+                }
+            }
+            return true;
+        };
+    }
+
     /**
      * Retrieve a fuzzy matcher that will match any class.
      *

src/main/java/com/comphenix/protocol/reflect/instances/DefaultInstances.java

@@ -26,6 +26,8 @@ import javax.annotation.Nullable;
 import java.lang.reflect.Constructor;
 import java.util.Collection;
 import java.util.List;
+import java.util.Map;
+import java.util.WeakHashMap;
 import java.util.logging.Level;
 
 /**
@@ -164,7 +166,19 @@ public class DefaultInstances implements InstanceProvider {
     public <T> T getDefault(Class<T> type) {
         return getDefaultInternal(type, registered, 0);
     }
-    
+
+    private final ThreadLocal<Map<Class<?>, Boolean>> cache = ThreadLocal.withInitial(WeakHashMap::new);
+
+    /**
+     * Determines if a given class has a default value.
+     *
+     * @param type - the class to check
+     * @return true if the class has a default value, false otherwise
+     */
+    public boolean hasDefault(Class<?> type) {
+        return cache.get().computeIfAbsent(type, aClass -> getDefaultInternal(aClass, registered, 0) != null);
+    }
+
     /**
      * Retrieve the constructor with the fewest number of parameters.
      * @param <T> Type

src/main/java/com/comphenix/protocol/reflect/instances/InstanceCreator.java

@@ -0,0 +1,155 @@
+package com.comphenix.protocol.reflect.instances;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.nio.ByteBuffer;
+import java.nio.FloatBuffer;
+import java.util.Map;
+import java.util.WeakHashMap;
+import java.util.function.Supplier;
+
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.ConstructorAccessor;
+import com.comphenix.protocol.reflect.accessors.MethodAccessor;
+
+public final class InstanceCreator implements Supplier<Object> {
+    private static Map<Class<?>, Object> BANNED_PARAMETERS = new WeakHashMap<>();
+
+    static {
+        try {
+            BANNED_PARAMETERS.put(ByteBuffer.class, true);
+            BANNED_PARAMETERS.put(FloatBuffer.class, true);
+        } catch (Throwable ignored) {
+        }
+    }
+
+    private ConstructorAccessor constructor = null;
+    private MethodAccessor factoryMethod = null;
+    private Class<?>[] paramTypes = null;
+    private boolean failed = false;
+
+    private final Class<?> type;
+
+    private InstanceCreator(Class<?> type) {
+        this.type = type;
+    }
+
+    public static InstanceCreator forClass(Class<?> type) {
+        if (type == null) {
+            throw new IllegalArgumentException("Type cannot be null.");
+        }
+
+        return new InstanceCreator(type);
+    }
+
+    private Object createInstance(Class<?> clazz) {
+        try {
+            return DefaultInstances.DEFAULT.create(clazz);
+        } catch (Exception ignored) {
+            return null;
+        }
+    }
+
+    private Object[] createParams(Class<?>[] paramTypes) {
+        Object[] params = new Object[paramTypes.length];
+        for (int i = 0; i < paramTypes.length; i++) {
+            params[i] = createInstance(paramTypes[i]);
+        }
+        return params;
+    }
+
+    private boolean containsBannedParameter(Class<?>[] paramTypes) {
+        for (Class<?> paramType : paramTypes) {
+            if (BANNED_PARAMETERS.containsKey(paramType)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public Object get() {
+        Object[] params = paramTypes != null ? createParams(paramTypes) : null;
+
+        if (constructor != null) {
+            return constructor.invoke(params);
+        }
+
+        if (factoryMethod != null) {
+            return factoryMethod.invoke(null, params);
+        }
+
+        if (failed) {
+            return null;
+        }
+
+        Object result = null;
+        int minCount = Integer.MAX_VALUE;
+
+        for (Constructor<?> testCtor : type.getDeclaredConstructors()) {
+            Class<?>[] paramTypes = testCtor.getParameterTypes();
+            if (paramTypes.length > minCount) {
+                continue;
+            }
+
+            if (containsBannedParameter(paramTypes)) {
+                continue;
+            }
+
+            Object[] testParams = createParams(paramTypes);
+
+            try {
+                ConstructorAccessor testAccessor = Accessors.getConstructorAccessor(testCtor);
+                result = testAccessor.invoke(testParams);
+                minCount = paramTypes.length;
+                this.constructor = testAccessor;
+                this.paramTypes = paramTypes;
+            } catch (Exception ignored) {
+            }
+        }
+
+        if (result != null) {
+            return result;
+        }
+
+        minCount = Integer.MAX_VALUE;
+
+        for (Method testMethod : type.getDeclaredMethods()) {
+            int modifiers = testMethod.getModifiers();
+            if (!Modifier.isStatic(modifiers) || !Modifier.isPublic(modifiers)) {
+                continue;
+            }
+
+            if (testMethod.getReturnType() != type) {
+                continue;
+            }
+
+            Class<?>[] paramTypes = testMethod.getParameterTypes();
+            if (paramTypes.length > minCount) {
+                continue;
+            }
+
+            if (containsBannedParameter(paramTypes)) {
+                continue;
+            }
+
+            Object[] testParams = createParams(paramTypes);
+
+            try {
+                MethodAccessor testAccessor = Accessors.getMethodAccessor(testMethod);
+                result = testAccessor.invoke(null, testParams);
+                minCount = paramTypes.length;
+                this.factoryMethod = testAccessor;
+                this.paramTypes = paramTypes;
+            } catch (Exception ignored) {
+            }
+        }
+
+        if (result == null) {
+            this.failed = true;
+        }
+
+        return result;
+    }
+}

src/main/java/com/comphenix/protocol/reflect/instances/InstanceProvider.java

@@ -17,6 +17,7 @@
 
 package com.comphenix.protocol.reflect.instances;
 
+import java.util.Collection;
 import javax.annotation.Nullable;
 
 /**
@@ -24,6 +25,7 @@ import javax.annotation.Nullable;
  * 
  * @author Kristian
  */
+@FunctionalInterface
 public interface InstanceProvider {
     /**
      * Create an instance given a type, if possible.
@@ -31,5 +33,5 @@ public interface InstanceProvider {
      * @return The instance, or NULL if the type cannot be created.
      * @throws NotConstructableException Thrown to indicate that this type cannot or should never be constructed.
      */
-    public abstract Object create(@Nullable Class<?> type);
+    Object create(@Nullable Class<?> type);
 }

src/main/java/com/comphenix/protocol/reflect/instances/MinecraftGenerator.java

@@ -1,16 +1,18 @@
 package com.comphenix.protocol.reflect.instances;
 
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+import org.bukkit.Material;
+import org.bukkit.entity.EntityType;
+import org.bukkit.inventory.ItemStack;
+
 import com.comphenix.protocol.reflect.accessors.Accessors;
 import com.comphenix.protocol.reflect.accessors.ConstructorAccessor;
 import com.comphenix.protocol.reflect.accessors.MethodAccessor;
 import com.comphenix.protocol.utility.MinecraftReflection;
 import com.comphenix.protocol.wrappers.BukkitConverters;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.UUID;
-import org.bukkit.Material;
-import org.bukkit.entity.EntityType;
-import org.bukkit.inventory.ItemStack;
 
 public class MinecraftGenerator {
 
@@ -53,19 +55,25 @@ public class MinecraftGenerator {
                     }
                 }
                 return DEFAULT_ENTITY_TYPES;
-            } else if (type.isAssignableFrom(Map.class)) {
+            } else if (Map.class.isAssignableFrom(type)) {
                 ConstructorAccessor ctor = FAST_MAP_CONSTRUCTORS.computeIfAbsent(type, __ -> {
                     try {
-                        String name = type.getCanonicalName();
-                        if (name != null && name.contains("it.unimi.fastutils")) {
-                            Class<?> clz = Class.forName(name.substring(name.length() - 3) + "OpenHashMap");
-                            return Accessors.getConstructorAccessorOrNull(clz);
+                        String name = type.getName();
+                        if (name.contains("it.unimi.dsi.fastutil")) {
+                            // convert interface maps to OpenHashMaps
+                            if (!name.endsWith("OpenHashMap")) {
+                                name = name.replace("Map", "OpenHashMap");
+                            }
+
+                            Class<?> hashMapClass = Class.forName(name);
+                            return Accessors.getConstructorAccessorOrNull(hashMapClass);
                         }
                     } catch (Exception ignored) {
                     }
-                    return null;
+                    return ConstructorAccessor.NO_OP_ACCESSOR;
                 });
-                if (ctor != null) {
+
+                if (ctor != ConstructorAccessor.NO_OP_ACCESSOR) {
                     try {
                         return ctor.invoke();
                     } catch (Exception ignored) {

src/main/java/com/comphenix/protocol/reflect/instances/PrimitiveGenerator.java

@@ -40,7 +40,7 @@ public class PrimitiveGenerator implements InstanceProvider {
     /**
      * Shared instance of this generator.
      */
-    public static PrimitiveGenerator INSTANCE = new PrimitiveGenerator();
+    public static final PrimitiveGenerator INSTANCE = new PrimitiveGenerator();
 
     // Our default string value
     private final String stringDefault;

src/main/java/com/comphenix/protocol/scheduler/DefaultScheduler.java

@@ -29,4 +29,10 @@ public class DefaultScheduler implements ProtocolScheduler {
         int taskId = scheduler.scheduleSyncDelayedTask(plugin, task, delay);
         return taskId >= 0 ? new DefaultTask(scheduler, taskId) : null;
     }
+
+    @Override
+    public Task runTaskAsync(Runnable task) {
+    	int taskId = scheduler.runTaskAsynchronously(plugin, task).getTaskId();
+        return taskId >= 0 ? new DefaultTask(scheduler, taskId) : null;
+    }
 }

src/main/java/com/comphenix/protocol/scheduler/DefaultTask.java

@@ -1,7 +1,6 @@
 package com.comphenix.protocol.scheduler;
 
 import org.bukkit.scheduler.BukkitScheduler;
-import org.bukkit.scheduler.BukkitTask;
 
 public class DefaultTask implements Task {
     private final int taskId;

src/main/java/com/comphenix/protocol/scheduler/FoliaScheduler.java

@@ -9,23 +9,32 @@ import org.bukkit.plugin.Plugin;
 import java.util.function.Consumer;
 
 public class FoliaScheduler implements ProtocolScheduler {
-    private final Object foliaScheduler;
+    private final Object foliaRegionScheduler;
     private final MethodAccessor runAtFixedRate;
     private final MethodAccessor runDelayed;
     private final MethodAccessor execute;
     private final MethodAccessor cancel;
+
+    private final Object foliaAsyncScheduler;
+    private final MethodAccessor executeAsync;
+
     private final Plugin plugin;
 
     public FoliaScheduler(Plugin plugin) {
         this.plugin = plugin;
 
         MethodAccessor getScheduler = Accessors.getMethodAccessor(Bukkit.getServer().getClass(), "getGlobalRegionScheduler");
-        this.foliaScheduler = getScheduler.invoke(Bukkit.getServer());
+        this.foliaRegionScheduler = getScheduler.invoke(Bukkit.getServer());
 
-        this.runAtFixedRate = Accessors.getMethodAccessor(foliaScheduler.getClass(), "runAtFixedRate", Plugin.class,
+        this.runAtFixedRate = Accessors.getMethodAccessor(foliaRegionScheduler.getClass(), "runAtFixedRate", Plugin.class,
                 Consumer.class, long.class, long.class);
-        this.execute = Accessors.getMethodAccessor(foliaScheduler.getClass(), "run", Plugin.class, Consumer.class);
-        this.runDelayed = Accessors.getMethodAccessor(foliaScheduler.getClass(), "runDelayed", Plugin.class, Consumer.class, long.class);
+        this.execute = Accessors.getMethodAccessor(foliaRegionScheduler.getClass(), "run", Plugin.class, Consumer.class);
+        this.runDelayed = Accessors.getMethodAccessor(foliaRegionScheduler.getClass(), "runDelayed", Plugin.class, Consumer.class, long.class);
+
+        MethodAccessor getAsyncScheduler = Accessors.getMethodAccessor(Bukkit.getServer().getClass(), "getAsyncScheduler");
+        foliaAsyncScheduler = getAsyncScheduler.invoke(Bukkit.getServer());
+
+        this.executeAsync = Accessors.getMethodAccessor(foliaAsyncScheduler.getClass(), "runNow", Plugin.class, Consumer.class);
 
         Class<?> taskClass = MinecraftReflection.getLibraryClass("io.papermc.paper.threadedregions.scheduler.ScheduledTask");
         this.cancel = Accessors.getMethodAccessor(taskClass, "cancel");
@@ -33,19 +42,25 @@ public class FoliaScheduler implements ProtocolScheduler {
 
     @Override
     public Task scheduleSyncRepeatingTask(Runnable task, long delay, long period) {
-        Object taskHandle = runAtFixedRate.invoke(foliaScheduler, plugin, (Consumer<Object>)(t -> task.run()), delay, period);
+        Object taskHandle = runAtFixedRate.invoke(foliaRegionScheduler, plugin, (Consumer<Object>)(t -> task.run()), delay, period);
         return new FoliaTask(cancel, taskHandle);
     }
 
     @Override
     public Task runTask(Runnable task) {
-        Object taskHandle = execute.invoke(foliaScheduler, plugin, (Consumer<Object>)(t -> task.run()));
+        Object taskHandle = execute.invoke(foliaRegionScheduler, plugin, (Consumer<Object>)(t -> task.run()));
         return new FoliaTask(cancel, taskHandle);
     }
 
     @Override
     public Task scheduleSyncDelayedTask(Runnable task, long delay) {
-        Object taskHandle = runDelayed.invoke(foliaScheduler, plugin, (Consumer<Object>)(t -> task.run()), delay);
+        Object taskHandle = runDelayed.invoke(foliaRegionScheduler, plugin, (Consumer<Object>)(t -> task.run()), delay);
         return new FoliaTask(cancel, taskHandle);
     }
+
+    @Override
+    public Task runTaskAsync(Runnable task) {
+    	Object taskHandle = executeAsync.invoke(foliaAsyncScheduler, plugin, (Consumer<Object>)(t -> task.run()));
+    	return new FoliaTask(cancel, taskHandle);
+    }
 }

src/main/java/com/comphenix/protocol/scheduler/ProtocolScheduler.java

@@ -1,12 +1,11 @@
 package com.comphenix.protocol.scheduler;
 
-import com.comphenix.protocol.ProtocolLib;
-import org.bukkit.plugin.Plugin;
-
 public interface ProtocolScheduler {
     Task scheduleSyncRepeatingTask(Runnable task, long delay, long period);
 
     Task runTask(Runnable task);
 
     Task scheduleSyncDelayedTask(Runnable task, long delay);
+
+    Task runTaskAsync(Runnable task);
 }

src/main/java/com/comphenix/protocol/timing/HistogramStream.java

@@ -1,125 +0,0 @@
-package com.comphenix.protocol.timing;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import com.google.common.base.Preconditions;
-import com.google.common.collect.ImmutableList;
-
-/**
- * Represents an online algortihm of computing histograms over time.
- * @author Kristian
- */
-public class HistogramStream extends OnlineComputation {
-    /**
-     * Each bin in the histogram, indexed by time.
-     */
-    protected List<StatisticsStream> bins;
-    
-    /**
-     * The current statistics stream we are updating.
-     */
-    protected StatisticsStream current;
-
-    /**
-     * The maximum number of observations in each bin.
-     */
-    protected int binWidth;
-    
-    /**
-     * The number of total observations.
-     */
-    protected int count;
-    
-    /**
-     * Construct a new histogram stream which splits up every observation in different bins, ordered by time. 
-     * @param binWidth - maximum number of observations in each bin.
-     */
-    public HistogramStream(int binWidth) {
-        this(new ArrayList<StatisticsStream>(), new StatisticsStream(), binWidth);
-    }
-    
-    /**
-     * Construct a new copy of the given histogram.
-     * @param other - the histogram to copy.
-     */
-    public HistogramStream(HistogramStream other) {
-        // Deep cloning
-        for (StatisticsStream stream : other.bins) {
-            StatisticsStream copy = stream.copy();
-            
-            // Update current
-            if (stream == other.current)
-                this.current = copy;
-            this.bins.add(copy);
-        }
-        this.binWidth = other.binWidth;
-    }
-    
-    /**
-     * Construct a new histogram stream.
-     * @param bins - list of bins.
-     * @param current - the current selected bin. This will be added to the list if it is not already present.
-     * @param binWidth - the desired number of observations in each bin.
-     */
-    protected HistogramStream(List<StatisticsStream> bins, StatisticsStream current, int binWidth) {
-        if (binWidth < 1)
-            throw new IllegalArgumentException("binWidth cannot be less than 1");
-        this.bins =  Preconditions.checkNotNull(bins, "bins cannot be NULL");
-        this.current = Preconditions.checkNotNull(current, "current cannot be NULL");
-        this.binWidth = binWidth;
-        
-        if (!this.bins.contains(current)) {
-            this.bins.add(current);
-        }
-    }
-    
-    @Override
-    public HistogramStream copy() {
-        return new HistogramStream(this);
-    }
-    
-    /**
-     * Retrieve an immutable view of every bin in the histogram.
-     * @return Every bin in the histogram.
-     */
-    public ImmutableList<StatisticsStream> getBins() {
-        return ImmutableList.copyOf(bins);
-    }
-    
-    @Override
-    public void observe(double value) {
-        checkOverflow();
-        count++;
-        current.observe(value);
-    }
-    
-    /**
-     * See if the current bin has overflowed. If so, construct a new bin and set it as the current.
-     */
-    protected void checkOverflow() {
-        if (current.getCount() >= binWidth) {
-            bins.add(current = new StatisticsStream());
-        }
-    }
-    
-    /**
-     * Retrieve the total statistics of every bin in the histogram.
-     * <p>
-     * This method is not thread safe.
-     * @return The total statistics.
-     */
-    public StatisticsStream getTotal() {
-        StatisticsStream sum = null;
-        
-        for (StatisticsStream stream : bins) {
-            sum = sum != null ? stream.add(sum) : stream;
-        }
-        return sum;
-    }
-        
-    @Override
-    public int getCount() {
-        return count;
-    }
-}

src/main/java/com/comphenix/protocol/timing/OnlineComputation.java

@@ -1,55 +0,0 @@
-package com.comphenix.protocol.timing;
-
-/**
- * Represents an online computation.
- *
- * @author Kristian
- */
-public abstract class OnlineComputation {
-
-    /**
-     * Retrieve a wrapper for another online computation that is synchronized.
-     *
-     * @param computation - the computation.
-     * @return The synchronized wrapper.
-     */
-    public static OnlineComputation synchronizedComputation(final OnlineComputation computation) {
-        return new OnlineComputation() {
-            @Override
-            public synchronized void observe(double value) {
-                computation.observe(value);
-            }
-
-            @Override
-            public synchronized int getCount() {
-                return computation.getCount();
-            }
-
-            @Override
-            public synchronized OnlineComputation copy() {
-                return computation.copy();
-            }
-        };
-    }
-
-    /**
-     * Retrieve the number of observations.
-     *
-     * @return Number of observations.
-     */
-    public abstract int getCount();
-
-    /**
-     * Observe a value.
-     *
-     * @param value - the observed value.
-     */
-    public abstract void observe(double value);
-
-    /**
-     * Construct a copy of the current online computation.
-     *
-     * @return The new copy.
-     */
-    public abstract OnlineComputation copy();
-}

src/main/java/com/comphenix/protocol/timing/PluginTimingTracker.java

@@ -0,0 +1,32 @@
+package com.comphenix.protocol.timing;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import com.comphenix.protocol.PacketType;
+
+public class PluginTimingTracker implements TimingTracker {
+
+    private final Map<PacketType, StatisticsStream> statistics = new ConcurrentHashMap<>();
+    private volatile boolean hasReceivedData = false;
+
+    @Override
+    public void track(PacketType packetType, Runnable runnable) {
+        long startTime = System.nanoTime();
+        runnable.run();
+        long endTime = System.nanoTime();
+
+        this.statistics.computeIfAbsent(packetType, key -> new StatisticsStream())
+                .observe(endTime - startTime);
+
+        this.hasReceivedData = true;
+    }
+
+    public boolean hasReceivedData() {
+        return hasReceivedData;
+    }
+
+    public Map<PacketType, StatisticsStream> getStatistics() {
+        return statistics;
+    }
+}

src/main/java/com/comphenix/protocol/timing/StatisticsStream.java

@@ -5,7 +5,7 @@ package com.comphenix.protocol.timing;
  *
  * @author Kristian
  */
-public class StatisticsStream extends OnlineComputation {
+public class StatisticsStream {
     // This algorithm is due to Donald Knuth, as described in:
     //     Donald E. Knuth (1998). The Art of Computer Programming, volume 2:
     //     Seminumerical Algorithms, 3rd edn., p. 232. Boston: Addison-Wesley.
@@ -37,18 +37,12 @@ public class StatisticsStream extends OnlineComputation {
         this.maximum = other.maximum;
     }
 
-    @Override
-    public StatisticsStream copy() {
-        return new StatisticsStream(this);
-    }
-
     /**
      * Observe a value.
      *
      * @param value - the observed value.
      */
-    @Override
-    public void observe(double value) {
+    public synchronized void observe(double value) {
         double delta = value - this.mean;
 
         // As per Knuth
@@ -145,7 +139,6 @@ public class StatisticsStream extends OnlineComputation {
      *
      * @return Number of observations.
      */
-    @Override
     public int getCount() {
         return this.count;
     }

src/main/java/com/comphenix/protocol/timing/TimedListenerManager.java

@@ -1,184 +0,0 @@
-package com.comphenix.protocol.timing;
-
-import java.util.Calendar;
-import java.util.Date;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-import org.bukkit.plugin.Plugin;
-
-import com.comphenix.protocol.events.PacketListener;
-import com.google.common.collect.ImmutableMap;
-
-/**
- * Represents a system for recording the time spent by each packet listener.
- * @author Kristian
- */
-public class TimedListenerManager {
-    public enum ListenerType {
-        ASYNC_SERVER_SIDE,
-        ASYNC_CLIENT_SIDE,
-        SYNC_SERVER_SIDE,
-        SYNC_CLIENT_SIDE;
-    }
-    
-    // The shared manager
-    private final static TimedListenerManager INSTANCE = new TimedListenerManager();
-    // Running?
-    private final static AtomicBoolean timing = new AtomicBoolean();
-    // When it was started
-    private volatile Date started;
-    private volatile Date stopped;
-    
-    // The map of time trackers
-    private final ConcurrentMap<String, ImmutableMap<ListenerType, TimedTracker>> map = new ConcurrentHashMap<>();
-
-    /**
-     * Retrieve the shared listener manager.
-     * <p>
-     * This should never change.
-     * @return The shared listener manager.
-     */
-    public static TimedListenerManager getInstance() {
-        return INSTANCE;
-    }
-    
-    /**
-     * Start timing listeners.
-     * @return TRUE if we started timing, FALSE if we are already timing listeners.
-     */
-    public boolean startTiming() {
-        if (setTiming(true)) {
-            started = Calendar.getInstance().getTime();
-            return true;
-        }
-        return false;
-    }
-    
-    /**s
-     * Stop timing listeners.
-     * @return TRUE if we stopped timing, FALSE otherwise.
-     */
-    public boolean stopTiming() {
-        if (setTiming(false)) {
-            stopped = Calendar.getInstance().getTime();
-            return true;
-        }
-        return false;
-    }
-    
-    /**
-     * Retrieve the time the listener was started.
-     * @return The time it was started, or NULL if they have never been started.
-     */
-    public Date getStarted() {
-        return started;
-    }
-    
-    /**
-     * Retrieve the time the time listeners was stopped.
-     * @return The time they were stopped, or NULL if not found.
-     */
-    public Date getStopped() {
-        return stopped;
-    }
-    
-    /**
-     * Set whether or not the timing manager is enabled.
-     * @param value - TRUE if it should be enabled, FALSE otherwise.
-     * @return TRUE if the value was changed, FALSE otherwise.
-     */
-    private boolean setTiming(boolean value) {
-        return timing.compareAndSet(!value, value);
-    }
-    
-    /**
-     * Determine if we are currently timing listeners.
-     * @return TRUE if we are, FALSE otherwise.
-     */
-    public boolean isTiming() {
-        return timing.get();
-    }
-    
-    /**
-     * Reset all packet gathering data.
-     */
-    public void clear() {
-        map.clear();
-    }
-    
-    /**
-     * Retrieve every tracked plugin.
-     * @return Every tracked plugin.
-     */
-    public Set<String> getTrackedPlugins() {
-        return map.keySet();
-    }
-    
-    /**
-     * Retrieve the timed tracker associated with the given plugin and listener type.
-     * @param plugin - the plugin.
-     * @param type - the listener type.
-     * @return The timed tracker.
-     */
-    public TimedTracker getTracker(Plugin plugin, ListenerType type) {
-        return getTracker(plugin.getName(), type);
-    }
-    
-    /**
-     * Retrieve the timed tracker associated with the given listener and listener type.
-     * @param listener - the listener.
-     * @param type - the listener type.
-     * @return The timed tracker.
-     */
-    public TimedTracker getTracker(PacketListener listener, ListenerType type) {
-        return getTracker(listener.getPlugin().getName(), type);
-    }
-    
-    /**
-     * Retrieve the timed tracker associated with the given plugin and listener type.
-     * @param pluginName - the plugin name.
-     * @param type - the listener type.
-     * @return The timed tracker.
-     */
-    public TimedTracker getTracker(String pluginName, ListenerType type) {
-        return getTrackers(pluginName).get(type);
-    }
-    
-    /**
-     * Retrieve the map of timed trackers for a specific plugin.
-     * @param pluginName - the plugin name.
-     * @return Map of timed trackers.
-     */
-    private ImmutableMap<ListenerType, TimedTracker> getTrackers(String pluginName) {
-        ImmutableMap<ListenerType, TimedTracker> trackers = map.get(pluginName);
-        
-        // Atomic pattern
-        if (trackers == null) {
-            ImmutableMap<ListenerType, TimedTracker> created = newTrackerMap();
-            trackers = map.putIfAbsent(pluginName, created);
-            
-            // Success!
-            if (trackers == null) {
-                trackers = created;
-            }
-        }
-        return trackers;
-    }
-    
-    /**
-     * Retrieve a new map of trackers for an unspecified plugin.
-     * @return A map of listeners and timed trackers.
-     */
-    private ImmutableMap<ListenerType, TimedTracker> newTrackerMap() {
-        ImmutableMap.Builder<ListenerType, TimedTracker> builder = ImmutableMap.builder();
-        
-        // Construct a map with every listener type
-        for (ListenerType type : ListenerType.values()) {
-            builder.put(type, new TimedTracker());
-        }
-        return builder.build();
-    }
-}

src/main/java/com/comphenix/protocol/timing/TimedTracker.java

@@ -1,72 +0,0 @@
-package com.comphenix.protocol.timing;
-
-import com.comphenix.protocol.PacketType;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.concurrent.atomic.AtomicInteger;
-
-/**
- * Tracks the invocation time for a particular plugin against a list of packets.
- *
- * @author Kristian
- */
-public class TimedTracker {
-
-    // Table of packets and invocations
-    private final AtomicInteger observations = new AtomicInteger();
-    private final Map<PacketType, StatisticsStream> packets = new HashMap<>();
-
-    /**
-     * Begin tracking an execution time.
-     *
-     * @return The current tracking token.
-     */
-    public long beginTracking() {
-        return System.nanoTime();
-    }
-
-    /**
-     * Stop and record the execution time since the creation of the given tracking token.
-     *
-     * @param trackingToken - the tracking token.
-     * @param type          - the packet type.
-     */
-    public synchronized void endTracking(long trackingToken, PacketType type) {
-        StatisticsStream stream = this.packets.get(type);
-
-        // Lazily create a stream
-        if (stream == null) {
-            this.packets.put(type, stream = new StatisticsStream());
-        }
-        // Store this observation
-        stream.observe(System.nanoTime() - trackingToken);
-        this.observations.incrementAndGet();
-    }
-
-    /**
-     * Retrieve the total number of observations.
-     *
-     * @return Total number of observations.
-     */
-    public int getObservations() {
-        return this.observations.get();
-    }
-
-    /**
-     * Retrieve an map (indexed by packet type) of all relevant statistics.
-     *
-     * @return The map of statistics.
-     */
-    public synchronized Map<PacketType, StatisticsStream> getStatistics() {
-        final Map<PacketType, StatisticsStream> clone = new HashMap<>();
-
-        for (Entry<PacketType, StatisticsStream> entry : this.packets.entrySet()) {
-            clone.put(
-                    entry.getKey(),
-                    new StatisticsStream(entry.getValue())
-            );
-        }
-        return clone;
-    }
-}

src/main/java/com/comphenix/protocol/timing/TimingListenerType.java

@@ -0,0 +1,6 @@
+package com.comphenix.protocol.timing;
+
+public enum TimingListenerType {
+
+    ASYNC_INBOUND, ASYNC_OUTBOUND, SYNC_INBOUND, SYNC_OUTBOUND;
+}

src/main/java/com/comphenix/protocol/timing/TimingReport.java

@@ -1,20 +1,20 @@
 package com.comphenix.protocol.timing;
 
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.timing.TimedListenerManager.ListenerType;
-import com.google.common.base.Strings;
-import com.google.common.io.Files;
-
 import java.io.BufferedWriter;
-import java.io.File;
 import java.io.IOException;
 import java.io.Writer;
-import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.Date;
 import java.util.Map;
 import java.util.TreeSet;
 
-public class TimingReportGenerator {
+import com.comphenix.protocol.PacketType;
+import com.google.common.base.Strings;
+import com.google.common.collect.ImmutableMap;
+
+public class TimingReport {
+
     private static final String NEWLINE = System.getProperty("line.separator");
     private static final String META_STARTED = "Started: %s" + NEWLINE;
     private static final String META_STOPPED = "Stopped: %s (after %s seconds)" + NEWLINE;
@@ -22,30 +22,39 @@ public class TimingReportGenerator {
     private static final String LISTENER_HEADER = " TYPE: %s " + NEWLINE;
     private static final String SEPERATION_LINE = " " + Strings.repeat("-", 139) + NEWLINE;
     private static final String STATISTICS_HEADER =
-        " Protocol:      Name:                         ID:                 Count:       Min (ms):       " +
+        " Protocol:      Name:                         Count:       Min (ms):       " +
         "Max (ms):       Mean (ms):      Std (ms): " + NEWLINE;
-    private static final String STATISTICS_ROW =    " %-15s %-29s %-19s %-12d %-15.6f %-15.6f %-15.6f %.6f " + NEWLINE;
+    private static final String STATISTICS_ROW =    " %-14s %-29s %-12d %-15.6f %-15.6f %-15.6f %.6f " + NEWLINE;
     private static final String SUM_MAIN_THREAD = " => Time on main thread: %.6f ms" + NEWLINE;
 
-    public void saveTo(File destination, TimedListenerManager manager) throws IOException {
-        final Date started = manager.getStarted();
-        final Date stopped = manager.getStopped();
-        final long seconds = Math.abs((stopped.getTime() - started.getTime()) / 1000);
+    private final Date startTime;
+    private final Date stopTime;
+    private final ImmutableMap<String, ImmutableMap<TimingListenerType, PluginTimingTracker>> trackerMap;
 
-        try (BufferedWriter writer = Files.newWriter(destination, StandardCharsets.UTF_8)) {
+    public TimingReport(Date startTime, Date stopTime, ImmutableMap<String, ImmutableMap<TimingListenerType, PluginTimingTracker>> trackerMap) {
+        this.startTime = startTime;
+        this.stopTime = stopTime;
+        this.trackerMap = trackerMap;
+    }
+
+    public void saveTo(Path path) throws IOException {
+        final long seconds = Math.abs((stopTime.getTime() - startTime.getTime()) / 1000);
+
+        try (BufferedWriter writer = Files.newBufferedWriter(path)) {
             // Write some timing information
-            writer.write(String.format(META_STARTED, started));
-            writer.write(String.format(META_STOPPED, stopped, seconds));
+            writer.write(String.format(META_STARTED, startTime));
+            writer.write(String.format(META_STOPPED, stopTime, seconds));
             writer.write(NEWLINE);
 
-            for (String plugin : manager.getTrackedPlugins()) {
-                writer.write(String.format(PLUGIN_HEADER, plugin));
+            for (Map.Entry<String, ImmutableMap<TimingListenerType, PluginTimingTracker>> pluginEntry : trackerMap.entrySet()) {
+                writer.write(String.format(PLUGIN_HEADER, pluginEntry.getKey()));
 
-                for (ListenerType type : ListenerType.values()) {
-                    TimedTracker tracker = manager.getTracker(plugin, type);
+                for (Map.Entry<TimingListenerType, PluginTimingTracker> entry : pluginEntry.getValue().entrySet()) {
+                    TimingListenerType type = entry.getKey();
+                    PluginTimingTracker tracker = entry.getValue();
 
                     // We only care if it has any observations at all
-                    if (tracker.getObservations() > 0) {
+                    if (tracker.hasReceivedData()) {
                         writer.write(String.format(LISTENER_HEADER, type));
 
                         writer.write(SEPERATION_LINE);
@@ -59,7 +68,7 @@ public class TimingReportGenerator {
         }
     }
 
-    private void saveStatistics(Writer destination, TimedTracker tracker, ListenerType type) throws IOException {
+    private void saveStatistics(Writer destination, PluginTimingTracker tracker, TimingListenerType type) throws IOException {
         Map<PacketType, StatisticsStream> streams = tracker.getStatistics();
         StatisticsStream sum = new StatisticsStream();
         int count = 0;
@@ -85,9 +94,9 @@ public class TimingReportGenerator {
             printStatistic(destination, null, sum);
         }
         // These are executed on the main thread
-        if (type == ListenerType.SYNC_SERVER_SIDE) {
+        if (type == TimingListenerType.SYNC_OUTBOUND) {
             destination.write(String.format(SUM_MAIN_THREAD,
-                toMilli(sum.getCount() * sum.getMean())
+                nanoToMillis(sum.getCount() * sum.getMean())
             ));
         }
     }
@@ -96,25 +105,20 @@ public class TimingReportGenerator {
         destination.write(String.format(STATISTICS_ROW,
             key != null ? key.getProtocol() : "SUM",
             key != null ? key.name() : "-",
-            key != null ? getPacketId(key) : "-",
             stream.getCount(),
-            toMilli(stream.getMinimum()),
-            toMilli(stream.getMaximum()),
-            toMilli(stream.getMean()),
-            toMilli(stream.getStandardDeviation())
+            nanoToMillis(stream.getMinimum()),
+            nanoToMillis(stream.getMaximum()),
+            nanoToMillis(stream.getMean()),
+            nanoToMillis(stream.getStandardDeviation())
         ));
     }
 
-    private String getPacketId(PacketType type) {
-        return Strings.padStart(Integer.toString(type.getCurrentId()), 2, '0');
-    }
-
     /**
      * Convert a value in nanoseconds to milliseconds.
      * @param value - the value.
      * @return The value in milliseconds.
      */
-    private double toMilli(double value) {
+    private double nanoToMillis(double value) {
         return value / 1000000.0;
     }
 }

src/main/java/com/comphenix/protocol/timing/TimingTracker.java

@@ -0,0 +1,10 @@
+package com.comphenix.protocol.timing;
+
+import com.comphenix.protocol.PacketType;
+
+public interface TimingTracker {
+
+    public static final TimingTracker EMPTY = (packetType, runnable) -> runnable.run();
+
+    void track(PacketType packetType, Runnable runnable);
+}

src/main/java/com/comphenix/protocol/timing/TimingTrackerManager.java

@@ -0,0 +1,65 @@
+package com.comphenix.protocol.timing;
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import com.comphenix.protocol.events.PacketListener;
+import com.google.common.collect.ImmutableMap;
+
+public class TimingTrackerManager {
+
+    private final static AtomicBoolean IS_TRACKING = new AtomicBoolean();
+
+    private static volatile Date startTime;
+    private static volatile Date stopTime;
+
+    private static final Map<String, ImmutableMap<TimingListenerType, PluginTimingTracker>> TRACKER_MAP = new ConcurrentHashMap<>();
+
+    public static boolean startTracking() {
+        if (IS_TRACKING.compareAndSet(false, true)) {
+            startTime = Calendar.getInstance().getTime();
+            return true;
+        }
+        return false;
+    }
+
+    public static boolean isTracking() {
+        return IS_TRACKING.get();
+    }
+
+    public static boolean stopTracking() {
+        if (IS_TRACKING.compareAndSet(true, false)) {
+            stopTime = Calendar.getInstance().getTime();
+            return true;
+        }
+        return false;
+    }
+
+    public static TimingReport createReportAndReset() {
+        TimingReport report = new TimingReport(startTime, stopTime, ImmutableMap.copyOf(TRACKER_MAP));
+        TRACKER_MAP.clear();
+        return report;
+    }
+
+    public static TimingTracker get(PacketListener listener, TimingListenerType type) {
+        if (!IS_TRACKING.get()) {
+            return TimingTracker.EMPTY;
+        }
+
+        String plugin = listener.getPlugin().getName();
+        return TRACKER_MAP.computeIfAbsent(plugin, k -> newTrackerMap()).get(type);
+    }
+
+    private static ImmutableMap<TimingListenerType, PluginTimingTracker> newTrackerMap() {
+        ImmutableMap.Builder<TimingListenerType, PluginTimingTracker> builder = ImmutableMap.builder();
+
+        for (TimingListenerType type : TimingListenerType.values()) {
+            builder.put(type, new PluginTimingTracker());
+        }
+
+        return builder.build();
+    }
+}

src/main/java/com/comphenix/protocol/updater/SpigotUpdater.java

@@ -19,7 +19,6 @@ package com.comphenix.protocol.updater;
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.error.Report;
 import com.comphenix.protocol.utility.Closer;
-import com.comphenix.protocol.utility.SchedulerUtil;
 import org.bukkit.plugin.Plugin;
 
 import java.io.BufferedReader;