Kotlin + Gradle + JVM with JS project setup

build.gradle.kts

plugins {
    `java-library`
    id("kotlin-multiplatform") version "1.3.21"
}

allprojects {
    group = "xxx"
    version = "1.0.0-SNAPSHOT"
}

repositories {
    mavenCentral()
}

java {
    sourceCompatibility = JavaVersion.VERSION_1_8
    targetCompatibility = JavaVersion.VERSION_1_8

    sourceSets {
        main {
            java.srcDir("src/jvmMain/kotlin")
        }
    }
}

kotlin {
    jvm()
    js()
    sourceSets {
        val commonMain by getting {
            dependencies {
                implementation(kotlin("stdlib-common"))
            }
        }
        val commonTest by getting {
            dependencies {
                implementation(kotlin("test-common"))
                implementation(kotlin("test-annotations-common"))
            }
        }
        val jvmMain by getting {
            dependencies {
                implementation(kotlin("stdlib-jdk8"))
            }
        }
        val jvmTest by getting {
            dependencies {
                implementation(kotlin("test"))
                implementation(kotlin("test-junit"))
            }
        }
        val jsMain by getting {
            dependencies {
                implementation(kotlin("stdlib-js"))
            }
        }
        val jsTest by getting {
            dependencies {
                implementation(kotlin("test-js"))
            }
        }
    }
}

settings.gradle.kts

rootProject.name = "xxx"

pluginManagement {
    resolutionStrategy {
        eachPlugin {
            if (requested.id.id == "kotlin-multiplatform") {
                useModule("org.jetbrains.kotlin:kotlin-gradle-plugin:${requested.version}")
            }
        }
    }
}