Migrate to gradle, fix examples (#769)

.github/workflows/build.yml

@@ -0,0 +1,32 @@
+name: Java CI with Gradle
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    # Only run on PRs if the source branch is on someone else's repo
+    if: "${{ github.event_name != 'pull_request' || github.repository != github.event.pull_request.head.repo.full_name }}"
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        # See https://github.com/actions/checkout/commits
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
+
+      - name: Validate Gradle wrapper
+        # See https://github.com/gradle/wrapper-validation-action/commits
+        uses: gradle/wrapper-validation-action@342dbebe7272035434f9baccc29a816ec6dd2c7b
+
+      - name: Set up JDK 17
+        # See https://github.com/actions/setup-java/commits
+        uses: actions/setup-java@0ab4596768b603586c0de567f2430c30f5b0d2b0
+        with:
+          java-version: 17
+          distribution: temurin
+
+      - name: Build
+        # See https://github.com/gradle/gradle-build-action/commits
+        uses: gradle/gradle-build-action@3bfe3a46584a206fb8361cdedd0647b0c4204232
+        with:
+          arguments: build

.github/workflows/deploy.yml

@@ -15,6 +15,10 @@ jobs:
         # See https://github.com/actions/checkout/commits
         uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
 
+      - name: Validate Gradle wrapper
+        # See https://github.com/gradle/wrapper-validation-action/commits
+        uses: gradle/wrapper-validation-action@342dbebe7272035434f9baccc29a816ec6dd2c7b
+
       - name: Set up JDK 17
         # See https://github.com/actions/setup-java/commits
         uses: actions/setup-java@0ab4596768b603586c0de567f2430c30f5b0d2b0
@@ -22,13 +26,11 @@ jobs:
           java-version: 17
           distribution: temurin
 
-      - uses: s4u/maven-settings-action@60912582505985be4cc55d2b890eb32767f8de5f
-        # See https://github.com/s4u/maven-settings-action/commits
-        with:
-          servers: '[{"id": "opencollab-release-repo", "username": "${env.MAVEN_USERNAME}", "password": "${env.MAVEN_PASSWORD}"},{"id": "opencollab-snapshot-repo", "username": "${env.MAVEN_USERNAME}", "password": "${env.MAVEN_PASSWORD}"}]'
-
-      - name: Deploy with Maven
-        run: mvn deploy -B -P deploy
+      - name: Publish to Maven Repository
+        if: ${{ success() && github.repository == 'GeyserMC/MCProtocolLib' && github.ref_name == 'master' }}
+        uses: gradle/gradle-build-action@3bfe3a46584a206fb8361cdedd0647b0c4204232
         env:
-          MAVEN_USERNAME: ${{ vars.DEPLOY_USER }}
-          MAVEN_PASSWORD: ${{ secrets.DEPLOY_PASS }}
+          OPENCOLLAB_USERNAME: ${{ vars.DEPLOY_USER }}
+          OPENCOLLAB_PASSWORD: ${{ secrets.DEPLOY_PASS }}
+        with:
+          arguments: publish

.github/workflows/maven.yml

@@ -1,23 +0,0 @@
-name: Java CI
-
-on: [push, pull_request]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout repository
-        # See https://github.com/actions/checkout/commits
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
-
-      - name: Set up JDK 17
-        # See https://github.com/actions/setup-java/commits
-        uses: actions/setup-java@0ab4596768b603586c0de567f2430c30f5b0d2b0
-        with:
-          java-version: 17
-          distribution: temurin
-
-      - name: Build with Maven
-        run: mvn package -B

.gitignore

@@ -1,13 +1,31 @@
-bin
-lib
-target
-testing
+# Compiled plugin files
+target/
 
-.settings
+# IDE files
+.idea/
+.vscode/*
+.settings/*
+*.iml
+*.iws
+*.ipr
 .classpath
 .project
-.directory
+.factorypath
 
-*.iml
-.idea
+# UML
+*.plantuml
 
+# Gradle
+.gradle
+**/build/
+!src/**/build/
+**/run/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar
+
+# Cache of project
+.gradletasknamecache

Jenkinsfile

@@ -1,7 +1,6 @@
 pipeline {
     agent any
     tools {
-        maven 'Maven 3'
         jdk 'Java 17'
     }
     options {
@@ -10,7 +9,7 @@ pipeline {
     stages {
         stage ('Build') {
             steps {
-                sh 'mvn clean package'
+                sh './gradlew clean build'
             }
         }
 
@@ -20,8 +19,8 @@ pipeline {
             }
 
             steps {
-                sh 'mvn javadoc:javadoc'
-                step([$class: 'JavadocArchiver', javadocDir: 'target/site/apidocs', keepAll: false])
+                sh './gradlew javadoc'
+                step([$class: 'JavadocArchiver', javadocDir: 'build/docs/javadoc', keepAll: false])
             }
         }
     }

README.md

@@ -45,6 +45,10 @@ dependencies {
 
 To use snapshot builds, switch the URL to `https://repo.opencollab.dev/maven-snapshots/`.
 
+### Javadocs
+
+You can find the Javadocs for MCProtocolLib [on opencollab](https://ci.opencollab.dev/job/GeyserMC/job/MCProtocolLib/job/master/javadoc/overview-summary.html).
+
 ## Building the Source
 
 MCProtocolLib uses Maven to manage dependencies. To build the source code, run `mvn clean install` in the project root directory.

build.gradle.kts

@@ -0,0 +1,112 @@
+plugins {
+    idea
+    `java-library`
+    `maven-publish`
+    alias(libs.plugins.indra)
+    alias(libs.plugins.indra.git)
+    alias(libs.plugins.indra.publishing)
+    alias(libs.plugins.lombok)
+}
+
+indra {
+    github("GeyserMC", "MCProtocolLib")
+
+    mitLicense()
+    publishReleasesTo("opencollab-release-repo", "https://repo.opencollab.dev/maven-releases/")
+    publishSnapshotsTo("opencollab-snapshot-repo", "https://repo.opencollab.dev/maven-snapshots/")
+
+    configurePublications {
+        pom {
+            name = "MCProtocolLib"
+            url = "https://github.com/GeyserMC/MCProtocolLib/"
+            organization {
+                name = "GeyserMC"
+                url = "https://github.com/GeyserMC"
+            }
+            developers {
+                developer {
+                    id = "steveice10"
+                    name = "Steveice10"
+                    email = "Steveice10@gmail.com"
+                }
+                developer {
+                    id = "GeyserMC"
+                    name = "GeyserMC"
+                    url = "https://geysermc.org/"
+                }
+            }
+        }
+
+        versionMapping {
+            usage(Usage.JAVA_API) { fromResolutionOf(JavaPlugin.RUNTIME_CLASSPATH_CONFIGURATION_NAME) }
+            usage(Usage.JAVA_RUNTIME) { fromResolutionResult() }
+        }
+    }
+
+    javaVersions {
+        target(17)
+        strictVersions()
+        testWith(17)
+        minimumToolchain(17)
+    }
+}
+
+val repoName = if (version.toString().endsWith("SNAPSHOT")) "maven-snapshots" else "maven-releases"
+publishing {
+    repositories {
+        maven("https://repo.opencollab.dev/${repoName}/") {
+            credentials.username = System.getenv("OPENCOLLAB_USERNAME")
+            credentials.password = System.getenv("OPENCOLLAB_PASSWORD")
+            name = "opencollab"
+        }
+    }
+}
+
+dependencies {
+    // Minecraft related libraries
+    api(libs.opennbt)
+    api(libs.mcauthlib)
+
+    // Kyori adventure
+    api(libs.bundles.adventure)
+
+    // Math utilities
+    api(libs.bundles.math)
+
+    // Stripped down fastutil
+    api(libs.bundles.fastutil)
+
+    // Netty
+    api(libs.bundles.netty)
+
+    // Test dependencies
+    testImplementation(libs.junit.jupiter)
+}
+
+lombok {
+    version = libs.versions.lombok.version.get()
+}
+
+group = "com.github.steveice10"
+version = "1.20.4-2-SNAPSHOT"
+description = "MCProtocolLib is a simple library for communicating with Minecraft clients and servers."
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
+    withSourcesJar()
+    withJavadocJar()
+}
+
+tasks.withType<JavaCompile> {
+    options.encoding = "UTF-8"
+    options.compilerArgs.add("-Xlint:all,-processing")
+}
+
+tasks.withType<Javadoc> {
+    title = "MCProtocolLib Javadocs"
+    val options = options as StandardJavadocDocletOptions
+    options.encoding = "UTF-8"
+    options.addStringOption("Xdoclint:all,-missing", "-quiet")
+}
+

example/build.gradle.kts

@@ -0,0 +1,11 @@
+plugins {
+    java
+}
+
+dependencies {
+    implementation(rootProject)
+}
+
+tasks.javadoc {
+    onlyIf { false }
+}

example/src/main/java/com/github/steveice10/mc/protocol/test/MinecraftProtocolTest.java

@@ -21,8 +21,6 @@ import com.github.steveice10.mc.protocol.data.status.handler.ServerPingTimeHandl
 import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundLoginPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundSystemChatPacket;
 import com.github.steveice10.mc.protocol.packet.ingame.serverbound.ServerboundChatPacket;
-import com.github.steveice10.opennbt.NBTIO;
-import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
 import com.github.steveice10.packetlib.ProxyInfo;
 import com.github.steveice10.packetlib.Server;
 import com.github.steveice10.packetlib.Session;
@@ -39,16 +37,11 @@ import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
 import net.kyori.adventure.text.format.TextDecoration;
 
-import java.io.DataInput;
-import java.io.DataInputStream;
-import java.io.IOException;
-import java.io.InputStream;
 import java.net.Proxy;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.BitSet;
-import java.util.zip.GZIPInputStream;
 
 public class MinecraftProtocolTest {
     private static final boolean SPAWN_SERVER = true;

example/src/main/java/com/github/steveice10/packetlib/test/PingPacket.java

@@ -2,13 +2,12 @@ package com.github.steveice10.packetlib.test;
 
 import com.github.steveice10.packetlib.codec.PacketCodecHelper;
 import com.github.steveice10.packetlib.packet.Packet;
-
-import java.io.IOException;
+import io.netty.buffer.ByteBuf;
 
 public class PingPacket implements Packet {
     private final String id;
 
-    public PingPacket(ByteBuf buf, PacketCodecHelper codecHelper) throws IOException {
+    public PingPacket(ByteBuf buf, PacketCodecHelper codecHelper) {
         this.id = codecHelper.readString(buf);
     }
 
@@ -19,14 +18,4 @@ public class PingPacket implements Packet {
     public String getPingId() {
         return this.id;
     }
-
-    @Override
-    public void write(ByteBuf buf, PacketCodecHelper codecHelper) throws IOException {
-        codecHelper.writeString(buf, this.id);
-    }
-
-    @Override
-    public boolean isPriority() {
-        return false;
-    }
 }

example/src/main/java/com/github/steveice10/packetlib/test/ServerListener.java

@@ -10,7 +10,7 @@ import com.github.steveice10.packetlib.event.server.SessionRemovedEvent;
 import javax.crypto.SecretKey;
 
 public class ServerListener extends ServerAdapter {
-    private SecretKey key;
+    private final SecretKey key;
 
     public ServerListener(SecretKey key) {
         this.key = key;

example/src/main/java/com/github/steveice10/packetlib/test/TestProtocol.java

@@ -2,11 +2,16 @@ package com.github.steveice10.packetlib.test;
 
 import com.github.steveice10.packetlib.Server;
 import com.github.steveice10.packetlib.Session;
+import com.github.steveice10.packetlib.codec.BasePacketCodecHelper;
+import com.github.steveice10.packetlib.codec.PacketCodecHelper;
+import com.github.steveice10.packetlib.codec.PacketDefinition;
+import com.github.steveice10.packetlib.codec.PacketSerializer;
 import com.github.steveice10.packetlib.crypt.AESEncryption;
 import com.github.steveice10.packetlib.crypt.PacketEncryption;
 import com.github.steveice10.packetlib.packet.DefaultPacketHeader;
 import com.github.steveice10.packetlib.packet.PacketHeader;
 import com.github.steveice10.packetlib.packet.PacketProtocol;
+import io.netty.buffer.ByteBuf;
 
 import javax.crypto.SecretKey;
 import java.security.GeneralSecurityException;
@@ -28,10 +33,21 @@ public class TestProtocol extends PacketProtocol {
     }
 
     public void setSecretKey(SecretKey key) {
-        this.register(0, PingPacket.class, PingPacket::new);
+        this.register(0, PingPacket.class, new PacketSerializer<>() {
+            @Override
+            public void serialize(ByteBuf buf, PacketCodecHelper helper, PingPacket packet) {
+                helper.writeString(buf, packet.getPingId());
+            }
+
+            @Override
+            public PingPacket deserialize(ByteBuf buf, PacketCodecHelper helper, PacketDefinition<PingPacket, PacketCodecHelper> definition) {
+                return new PingPacket(buf, helper);
+            }
+        });
+
         try {
             this.encrypt = new AESEncryption(key);
-        } catch(GeneralSecurityException e) {
+        } catch (GeneralSecurityException e) {
             e.printStackTrace();
         }
     }

gradle/libs.versions.toml

@@ -0,0 +1,48 @@
+metadata.format.version = "1.1"
+
+[versions]
+
+indra = "3.1.3"
+lombok-version = "1.18.30"
+lombok-plugin = "8.4"
+adventure = "4.15.0"
+opennbt = "1.6"
+mcauthlib = "6621fd0"
+math = "2.0"
+fastutil-maps = "8.5.3"
+netty = "4.1.103.Final"
+netty-io_uring = "0.0.24.Final"
+junit = "5.8.2"
+
+[libraries]
+
+adventure-text-serializer-gson = { module = "net.kyori:adventure-text-serializer-gson", version.ref = "adventure" }
+adventure-text-serializer-json-legacy-impl = { module = "net.kyori:adventure-text-serializer-json-legacy-impl", version.ref = "adventure" }
+
+opennbt = { module = "com.github.steveice10:opennbt", version.ref = "opennbt" }
+mcauthlib = { module = "com.github.GeyserMC:mcauthlib", version.ref = "mcauthlib" }
+
+math-api = { module = "org.cloudburstmc.math:api", version.ref = "math" }
+math-immutable = { module = "org.cloudburstmc.math:immutable", version.ref = "math" }
+
+fastutil-object2int-maps = { module = "com.nukkitx.fastutil:fastutil-object-int-maps", version.ref = "fastutil-maps" }
+fastutil-int2object-maps = { module = "com.nukkitx.fastutil:fastutil-int-object-maps", version.ref = "fastutil-maps" }
+
+netty-all = { module = "io.netty:netty-all", version.ref = "netty" }
+netty-incubator-transport-native-io_uring = { module = "io.netty.incubator:netty-incubator-transport-native-io_uring", version.ref = "netty-io_uring" }
+
+junit-jupiter = { module = "org.junit.jupiter:junit-jupiter", version.ref = "junit" }
+
+[plugins]
+
+indra = { id = "net.kyori.indra", version.ref = "indra" }
+indra-git = { id = "net.kyori.indra.git", version.ref = "indra" }
+indra-publishing = { id = "net.kyori.indra.publishing", version.ref = "indra" }
+lombok = { id = "io.freefair.lombok", version.ref = "lombok-plugin" }
+
+[bundles]
+
+adventure = ["adventure-text-serializer-gson", "adventure-text-serializer-json-legacy-impl"]
+math = ["math-api", "math-immutable"]
+fastutil = ["fastutil-object2int-maps", "fastutil-int2object-maps"]
+netty = ["netty-all", "netty-incubator-transport-native-io_uring"]

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+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 $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

pom.xml

@@ -1,274 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.github.steveice10</groupId>
-    <artifactId>mcprotocollib</artifactId>
-    <version>1.20.4-2-SNAPSHOT</version>
-    <packaging>jar</packaging>
-
-    <name>MCProtocolLib</name>
-    <description>MCProtocolLib is a simple library for communicating with Minecraft clients and servers.</description>
-    <url>https://github.com/GeyserMC/MCProtocolLib/</url>
-
-    <scm>
-        <connection>scm:git:git@github.com:GeyserMC/MCProtocolLib.git</connection>
-        <developerConnection>scm:git:git@github.com:GeyserMC/MCProtocolLib.git</developerConnection>
-        <url>git@github.com:GeyserMC/MCProtocolLib/</url>
-    </scm>
-
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>17</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
-        <adventure.version>4.15.0-20231207.074016-23</adventure.version>
-        <!-- fixme: update to 4.15.0 when it releases -->
-    </properties>
-
-    <licenses>
-        <license>
-            <name>MIT</name>
-            <url>https://opensource.org/license/mit/</url>
-            <distribution>repo</distribution>
-        </license>
-    </licenses>
-
-    <developers>
-        <developer>
-            <id>steveice10</id>
-            <name>Steveice10</name>
-            <email>Steveice10@gmail.com</email>
-        </developer>
-        <developer>
-            <id>GeyserMC</id>
-            <name>GeyserMC</name>
-            <url>https://geysermc.org/</url>
-            <organization>GeyserMC</organization>
-            <organizationUrl>https://github.com/GeyserMC</organizationUrl>
-        </developer>
-    </developers>
-
-    <issueManagement>
-        <system>GitHub</system>
-        <url>https://github.com/GeyserMC/MCProtocolLib/issues</url>
-    </issueManagement>
-
-    <repositories>
-        <repository>
-            <id>opencollab-release-repo</id>
-            <url>https://repo.opencollab.dev/maven-releases/</url>
-            <releases>
-                <enabled>true</enabled>
-            </releases>
-            <snapshots>
-                <enabled>false</enabled>
-            </snapshots>
-        </repository>
-        <repository>
-            <id>opencollab-snapshot-repo</id>
-            <url>https://repo.opencollab.dev/maven-snapshots/</url>
-            <releases>
-                <enabled>false</enabled>
-            </releases>
-            <snapshots>
-                <enabled>true</enabled>
-            </snapshots>
-        </repository>
-        <repository>
-            <id>jitpack.io</id>
-            <url>https://jitpack.io</url>
-        </repository>
-        <repository>
-            <!-- fixme: remove when adventure 4.15.0 releases -->
-            <id>sonatype-oss-snapshots1</id>
-            <url>https://s01.oss.sonatype.org/content/repositories/snapshots/</url>
-        </repository>
-    </repositories>
-
-    <dependencies>
-        <!-- Minecraft related libraries -->
-        <dependency>
-            <groupId>com.github.steveice10</groupId>
-            <artifactId>opennbt</artifactId>
-            <version>1.6</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.github.GeyserMC</groupId>
-            <artifactId>mcauthlib</artifactId>
-            <version>6621fd081c</version>
-            <scope>compile</scope>
-        </dependency>
-        <!-- Kyori adventure -->
-        <dependency>
-            <groupId>net.kyori</groupId>
-            <artifactId>adventure-text-serializer-gson</artifactId>
-            <version>${adventure.version}</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>net.kyori</groupId>
-            <artifactId>adventure-text-serializer-json-legacy-impl</artifactId>
-            <version>${adventure.version}</version>
-            <scope>compile</scope>
-        </dependency>
-        <!-- Lombok and annotations -->
-        <dependency>
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-            <version>1.18.30</version>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.github.spotbugs</groupId>
-            <artifactId>spotbugs-annotations</artifactId>
-            <version>4.7.3</version>
-            <scope>provided</scope>
-        </dependency>
-        <!-- Math utilities -->
-        <dependency>
-            <groupId>org.cloudburstmc.math</groupId>
-            <artifactId>api</artifactId>
-            <version>2.0</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.cloudburstmc.math</groupId>
-            <artifactId>immutable</artifactId>
-            <version>2.0</version>
-            <scope>compile</scope>
-        </dependency>
-        <!-- Stripped down fastutil -->
-        <dependency>
-            <groupId>com.nukkitx.fastutil</groupId>
-            <artifactId>fastutil-object-int-maps</artifactId>
-            <version>8.5.3</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.nukkitx.fastutil</groupId>
-            <artifactId>fastutil-int-object-maps</artifactId>
-            <version>8.5.3</version>
-            <scope>compile</scope>
-        </dependency>
-        <!-- Netty -->
-        <dependency>
-            <groupId>io.netty</groupId>
-            <artifactId>netty-all</artifactId>
-            <version>4.1.99.Final</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>io.netty</groupId>
-            <artifactId>netty-codec-haproxy</artifactId>
-            <version>4.1.99.Final</version>
-            <scope>compile</scope>
-            <optional>true</optional>
-        </dependency>
-        <dependency>
-            <groupId>io.netty.incubator</groupId>
-            <artifactId>netty-incubator-transport-native-io_uring</artifactId>
-            <version>0.0.23.Final</version>
-            <classifier>linux-x86_64</classifier>
-        </dependency>
-        <!-- Test dependencies -->
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter</artifactId>
-            <version>5.8.2</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <defaultGoal>clean install</defaultGoal>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-clean-plugin</artifactId>
-                <version>3.3.1</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-resources-plugin</artifactId>
-                <version>3.3.1</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jar-plugin</artifactId>
-                <version>3.3.0</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.11.0</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.1.2</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.6.0</version>
-                <executions>
-                    <execution>
-                        <id>attach-javadocs</id>
-                        <goals>
-                            <goal>aggregate</goal>
-                            <goal>jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <configuration>
-                    <show>public</show>
-                    <failOnError>false</failOnError>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-source-plugin</artifactId>
-                <version>3.3.0</version>
-                <executions>
-                    <execution>
-                        <id>attach-sources</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-install-plugin</artifactId>
-                <version>3.1.1</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-deploy-plugin</artifactId>
-                <version>3.1.1</version>
-            </plugin>
-        </plugins>
-    </build>
-
-    <profiles>
-        <profile>
-            <id>deploy</id>
-            <activation>
-                <activeByDefault>true</activeByDefault>
-            </activation>
-            <distributionManagement>
-                <repository>
-                    <id>opencollab-release-repo</id>
-                    <url>https://repo.opencollab.dev/maven-releases/</url>
-                </repository>
-                <snapshotRepository>
-                    <id>opencollab-snapshot-repo</id>
-                    <url>https://repo.opencollab.dev/maven-snapshots/</url>
-                </snapshotRepository>
-            </distributionManagement>
-        </profile>
-    </profiles>
-</project>

settings.gradle.kts

@@ -0,0 +1,22 @@
+dependencyResolutionManagement {
+    repositories {
+        maven("https://repo.opencollab.dev/maven-releases/") {
+            name = "opencollab-releases"
+        }
+        maven("https://repo.opencollab.dev/maven-snapshots/") {
+            name = "opencollab-snapshots"
+        }
+        // fixme: remove when adventure 4.15.0 releases
+        maven("https://s01.oss.sonatype.org/content/repositories/snapshots/") {
+            name = "sonatype-snapshots"
+        }
+        maven("https://jitpack.io") {
+            name = "jitpack"
+        }
+        mavenCentral()
+    }
+}
+
+rootProject.name = "mcprotocollib"
+
+include("example")

src/main/java/com/github/steveice10/mc/protocol/data/UnmappedKeyException.java

@@ -1,13 +0,0 @@
-package com.github.steveice10.mc.protocol.data;
-
-import lombok.Getter;
-
-@Getter
-public class UnmappedKeyException extends IllegalArgumentException {
-    private Enum<?> key;
-    private Class<?> valueType;
-
-    public UnmappedKeyException(Object key, Class<?> valueType) {
-        super("Key " + key + " has no mapping for value class " + valueType.getName() + ".");
-    }
-}

src/main/java/com/github/steveice10/mc/protocol/data/UnmappedValueException.java

@@ -1,13 +0,0 @@
-package com.github.steveice10.mc.protocol.data;
-
-import lombok.Getter;
-
-@Getter
-public class UnmappedValueException extends IllegalArgumentException {
-    private Object value;
-    private Class<?> keyType;
-
-    public UnmappedValueException(Object value, Class<?> keyType) {
-        super("Value " + value + " has no mapping for key class " + keyType.getName() + ".");
-    }
-}

src/main/java/com/github/steveice10/mc/protocol/data/game/level/block/value/BellValueType.java

@@ -1,7 +1,5 @@
 package com.github.steveice10.mc.protocol.data.game.level.block.value;
 
-import com.github.steveice10.mc.protocol.data.UnmappedValueException;
-
 public enum BellValueType implements BlockValueType {
     SHAKE_DIRECTION;
 

src/main/java/com/github/steveice10/mc/protocol/packet/ingame/clientbound/level/ClientboundLevelEventPacket.java

@@ -11,7 +11,6 @@ import lombok.NonNull;
 import lombok.With;
 import org.cloudburstmc.math.vector.Vector3i;
 
-import javax.annotation.Nonnull;
 import java.io.IOException;
 
 @Data
@@ -20,7 +19,7 @@ import java.io.IOException;
 public class ClientboundLevelEventPacket implements MinecraftPacket {
     private final @NonNull LevelEvent event;
     private final @NonNull Vector3i position;
-    private final @Nonnull LevelEventData data;
+    private final @NonNull LevelEventData data;
     private final boolean broadcast;
 
     public ClientboundLevelEventPacket(@NonNull LevelEvent event, @NonNull Vector3i position, @NonNull LevelEventData data) {

src/main/java/com/github/steveice10/mc/protocol/packet/ingame/clientbound/scoreboard/ClientboundSetPlayerTeamPacket.java

@@ -9,8 +9,8 @@ import com.github.steveice10.mc.protocol.data.game.scoreboard.TeamColor;
 import io.netty.buffer.ByteBuf;
 import lombok.*;
 import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.io.IOException;
 import java.util.Arrays;
 

src/main/java/com/github/steveice10/packetlib/tcp/TcpSession.java

@@ -17,8 +17,8 @@ import io.netty.handler.timeout.WriteTimeoutException;
 import io.netty.handler.timeout.WriteTimeoutHandler;
 import io.netty.util.concurrent.DefaultThreadFactory;
 import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.net.ConnectException;
 import java.net.SocketAddress;
 import java.util.Collections;