Building a self-executable jar with Gradle and Kotlin

Question

I\'ve written a simple kotlin source file in order to get started, and a gradle script file. But I can\'t figure out how to add the main func to the manifest, so that the ja

Answer 1

Add the plugin application, then set the mainClassName as

mainClassName = '[your_namespace].[your_arctifact]Kt'

For instance, suppose you have placed the following code in a file named main.kt:

package net.mydomain.kotlinlearn

import kotlin
import java.util.ArrayList

fun main(args: Array) {

    println("Hello!")

}

your build.gradle should be:

apply plugin: 'kotlin'
apply plugin: 'application'

mainClassName = "net.mydomain.kotlinlearn.MainKt"

In fact Kotlin is building a class to encapsulate your main function named with the same name of your file - with Title Case.