Gradle Build with Java 9 Modules and Kotlin Support (root project)

build.gradle

plugins {
    id 'idea'
    id 'com.zyxist.chainsaw' version '0.3.1' apply false
    id "org.jetbrains.kotlin.jvm" version "1.2.31" apply false
}

subprojects {
    apply plugin: 'idea'
    apply plugin: 'java-library'
    apply plugin: 'com.zyxist.chainsaw'
}

// The idea plugin derives the JDK name as '1.9' while IDEA uses '9' as the default name for JDK 9
idea.project.jdkName = '9'

kotlin.gradle

apply plugin: 'org.jetbrains.kotlin.jvm'

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib"
}

// Enable Kotlin compilation to Java 8 class files wiht method parameter name metadata
compileKotlin.kotlinOptions.jvmTarget = '1.8'
compileKotlin.kotlinOptions.javaParameters = true

// As per https://stackoverflow.com/a/47669720
// See also https://discuss.kotlinlang.org/t/kotlin-support-for-java-9-module-system/2499/9
compileKotlin.destinationDir = compileJava.destinationDir
jar.duplicatesStrategy = "exclude"

// Allow cross-references between java and kotlin
sourceSets.main.kotlin.srcDirs += 'src/main/java'

Hi,

is this still actual?

I am no longer a Java user and cannot speak to the current validity of this code snippet.