Java Gradle Skill

Master Gradle build tool with Kotlin DSL for Java projects.

Overview

This skill covers Gradle configuration with Kotlin DSL including task configuration, dependency management with catalogs, build cache optimization, and CI/CD integration.

When to Use This Skill

Use when you need to:

Configure Gradle builds (Kotlin DSL) Manage dependencies with catalogs Optimize build performance Set up build cache Create custom tasks Quick Reference // build.gradle.kts plugins { java id("org.springframework.boot") version "3.2.1" id("io.spring.dependency-management") version "1.1.4" }

java { toolchain { languageVersion = JavaLanguageVersion.of(21) } }

repositories { mavenCentral() }

dependencies { implementation("org.springframework.boot:spring-boot-starter-web") testImplementation("org.springframework.boot:spring-boot-starter-test") }

tasks.withType { options.compilerArgs.addAll(listOf("-parameters", "-Xlint:all")) options.isFork = true options.isIncremental = true }

tasks.test { useJUnitPlatform() maxParallelForks = Runtime.getRuntime().availableProcessors() / 2 }

Version Catalog

gradle/libs.versions.toml

[ versions ] spring-boot = "3.2.1"

[ libraries ] spring-boot-web = { module = "org.springframework.boot:spring-boot-starter-web", version.ref = "spring-boot" }

[ plugins ] spring-boot = { id = "org.springframework.boot", version.ref = "spring-boot" }

Useful Commands gradle dependencies # View dependencies gradle dependencyInsight --dependency log4j # Analyze dep gradle build --scan # Build scan gradle build --build-cache # Use cache gradle wrapper --gradle-version 8.5 # Update wrapper

Build Optimization // settings.gradle.kts enableFeaturePreview("STABLE_CONFIGURATION_CACHE")

// Enable parallel and caching org.gradle.parallel=true org.gradle.caching=true

Troubleshooting Problem Solution Slow builds Enable --build-cache Version conflict Use platform() or constraints Cache issues gradle --refresh-dependencies Usage Skill("java-gradle")