Gradle Quick Start

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Gradle 9.3.0
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Build time:    2026-01-16 11:14:22 UTC
Revision:      701205ed2f78811508466c8e1952304c2ea869f5

Kotlin:        2.2.21
Groovy:        4.0.29
Ant:           Apache Ant(TM) version 1.10.15 compiled on August 25 2024
Launcher JVM:  21.0.9 (Ubuntu 21.0.9+10-Ubuntu-124.04)
Daemon JVM:    /usr/lib/jvm/java-21-openjdk-amd64 (no Daemon JVM specified, using current Java home)
OS:            Linux 6.14.0-37-generic amd64

/*
 * This file was generated by the Gradle 'init' task.
 *
 * This generated file contains a sample Java application project to get you started.
 * For more details on building Java & JVM projects, please refer to https://docs.gradle.org/9.3.0/userguide/building_java_projects.html in the Gradle documentation.
 */
 
plugins {
    // Apply the application plugin to add support for building a CLI application in Java.
    application
}
 
repositories {
    // Use Maven Central for resolving dependencies.
    mavenCentral()
}
 
dependencies {
    // Use JUnit Jupiter for testing.
    testImplementation(libs.junit.jupiter)
 
    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 
    // This dependency is used by the application.
    implementation(libs.guava)
}
 
// Apply a specific Java toolchain to ease working on different environments.
java {
    toolchain {
        languageVersion = JavaLanguageVersion.of(21)
    }
}
 
application {
    // Define the main class for the application.
    mainClass = "org.example.App"
}
 
tasks.named<Test>("test") {
    // Use JUnit Platform for unit tests.
    useJUnitPlatform()
}

/*
 * This source file was generated by the Gradle 'init' task
 */
package org.example;
 
public class App {
    public String getGreeting() {
        return "Hello World!";
    }
 
    public static void main(String[] args) {
        System.out.println(new App().getGreeting());
    }
}

/*
 * This source file was generated by the Gradle 'init' task
 */
package org.example;
 
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
 
class AppTest {
    @Test void appHasAGreeting() {
        App classUnderTest = new App();
        assertNotNull(classUnderTest.getGreeting(), "app should have a greeting");
    }
}

> Task :tasks

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Tasks runnable from root project 'gradle-test'
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Application tasks
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run - Runs this project as a JVM application

Build tasks
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assemble - Assembles the outputs of this project.
build - Assembles and tests this project.
buildDependents - Assembles and tests this project and all projects that depend on it.
buildNeeded - Assembles and tests this project and all projects it depends on.
classes - Assembles main classes.
clean - Deletes the build directory.
jar - Assembles a jar archive containing the classes of the 'main' feature.
testClasses - Assembles test classes.

Build Setup tasks
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init - Initializes a new Gradle build.
updateDaemonJvm - Generates or updates the Gradle Daemon JVM criteria.
wrapper - Generates Gradle wrapper files.

Distribution tasks
------------------
assembleDist - Assembles the main distributions
distTar - Bundles the project as a distribution.
distZip - Bundles the project as a distribution.
installDist - Installs the project as a distribution as-is.

Documentation tasks
-------------------
javadoc - Generates Javadoc API documentation for the 'main' feature.

> Task :app:run
Hello World!

BUILD SUCCESSFUL in 1s
2 actionable tasks: 1 executed, 1 up-to-date
Configuration cache entry reused.

tasks.jar {
    manifest {
        attributes["Main-Class"] = application.mainClass.get()
    }
    from({
        configurations.runtimeClasspath.get().map {
            if (it.isDirectory) it else zipTree(it)
        }
    })
    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
}