Update to Java 21

build.gradle

@@ -9,12 +9,10 @@ buildscript {
       url "https://plugins.gradle.org/m2/"
     }
   }
-  dependencies {
-    classpath "io.freefair.gradle:lombok-plugin:5.3.3.3"
-  }
 }
 
 plugins {
+    id("io.freefair.lombok") version "8.10"
     id 'com.bmuschko.docker-remote-api' version '3.2.3'
 }
 
@@ -25,7 +23,8 @@ version = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy.MM.dd-HH.
 
 apply plugin: 'java'
 apply plugin: 'eclipse'
-apply plugin: 'io.freefair.lombok'
+
+java.toolchain.languageVersion = JavaLanguageVersion.of(21)
 
 repositories {
 	flatDir {
@@ -35,42 +34,44 @@ repositories {
 }
 
 dependencies {
-	compile name: 'commons-io-2.4'
-	compile name: 'guava-17.0'
-	compile name: 'gson-2.8.0'
-	compile name: 'asm-debug-all-5.2'
-	compile 'org.slf4j:slf4j-api:2.0.7'
-	compile 'ch.qos.logback:logback-classic:1.3.6'
-	compile 'net.dv8tion:JDA:5.1.0'
-	compile 'org.xerial:sqlite-jdbc:3.45.2.0'
+	implementation name: 'commons-io-2.4'
+	implementation name: 'guava-17.0'
+	implementation name: 'gson-2.8.0'
+	implementation name: 'asm-debug-all-5.2'
+	implementation 'org.slf4j:slf4j-api:2.0.7'
+	implementation 'ch.qos.logback:logback-classic:1.3.6'
+	implementation 'net.dv8tion:JDA:5.1.0'
+	implementation 'org.xerial:sqlite-jdbc:3.45.2.0'
+}
+
+tasks.withType(JavaCompile).configureEach {
+	it.options.release = 21
 }
 
-compileJava {
-	outputs.upToDateWhen { false }
-	options.compilerArgs << '-XDignore.symbol.file'
-	options.fork = true
-	options.forkOptions.executable = 'javac'
+java {
+	sourceCompatibility = JavaVersion.VERSION_21
+	targetCompatibility = JavaVersion.VERSION_21
 }
 
 jar {
-	classifier = 'bin'
-	baseName = archivesBaseName
+	archiveClassifier  = 'bin'
+	archiveBaseName = archivesBaseName
 }
 
 task fatJar(type: Jar, dependsOn: 'jar') {
 	duplicatesStrategy = DuplicatesStrategy.EXCLUDE
 
     inputs.file jar.archivePath
-    from(configurations.compile.collect { zipTree(it).matching { 
+    from(configurations.runtimeClasspath.collect { zipTree(it).matching { 
 		exclude "META-INF/**"
 	} })
 
 	from("${projectDir}/services") {
 		into "META-INF/services"
 	}
 
-	classifier = 'all'
-	baseName = archivesBaseName
+	archiveClassifier  = 'all'
+	archiveBaseName = archivesBaseName
 }
 
 tasks.withType(Jar) {
@@ -94,9 +95,9 @@ artifacts {
 
 task createDockerfile(type: Dockerfile) {
     destFile = project.file('build/docker/Dockerfile')
-    from 'openjdk:8-jre-alpine'
+    from 'openjdk:21-jre-alpine'
     maintainer 'Aizistral "admin@aizistral.com"'
-    copyFile fatJar.archiveName, '/infinite-machine/InfiniteMachine.jar'
+    copyFile fatJar.archiveFileName.get(), '/infinite-machine/InfiniteMachine.jar'
     runCommand 'mkdir /infinite-machine/persistence'
 	runCommand 'mkdir /infinite-machine/persistence/database'
 	runCommand 'mkdir /infinite-machine/persistence/config'

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip