Upgrade to Gradle 8.8

build.gradle

@@ -1,28 +1,23 @@
 plugins {
 	id 'java-library'
 	id 'application'
-	id 'com.github.johnrengelman.shadow' version '7.1.2'
+	id 'com.github.johnrengelman.shadow' version '8.1.1'
 	id 'pmd'
 }
 
-sourceCompatibility = '1.11'
-targetCompatibility = '1.11'
-
-compileJava {
-	// Suppress warnings about internal api usage - https://stackoverflow.com/a/19553686/6238618
-	options.fork = true
-	options.forkOptions.executable = 'javac'
-	options.compilerArgs << '-XDignore.symbol.file'
+java {
+	sourceCompatibility = 11
+	targetCompatibility = 11
 }
 
-task generateVersionFile {
+tasks.register('generateVersionFile') {
 	def stdout = new ByteArrayOutputStream()
 	def result = exec {
 		ignoreExitValue true
 		commandLine "git", "describe", "--tags", "--always"
 		standardOutput = stdout
 	}
-	if(result.getExitValue() == 0) {
+	if (result.getExitValue() == 0) {
 		new File(projectDir, "src/main/resources/VERSION").text = stdout.toString() - "v"
 	} else {
 		logger.warn("Warning: automatic version detection failed")
@@ -53,7 +48,9 @@ dependencies {
 	implementation 'org.slf4j:slf4j-nop:1.7.36'
 }
 
-mainClassName = "com.sheepit.client.standalone.Worker"
+application {
+	mainClass = "com.sheepit.client.standalone.Worker"
+}
 
 jar {
 	manifest {
@@ -61,7 +58,8 @@ jar {
 	}
 	
 	from {
-		configurations.implementation.collect { it.isDirectory() ? it : zipTree(it) }
+		configurations.compileClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+		duplicatesStrategy "exclude"
 	}
 }