Target Java 8 in all your projects

A very simple Gradle plugin to avoid the Cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target 1.6 error.

The plugin will make your Java/Kotlin/Android task target Java 8:

private fun Project.configureJava() {
  extensions.configure(JavaPluginExtension::class.java) {
    it.sourceCompatibility = JavaVersion.VERSION_1_8
    it.targetCompatibility = JavaVersion.VERSION_1_8
  }
}

private fun Project.configureKotlin() {
  tasks.withType(KotlinCompile::class.java) {
    it.kotlinOptions {
      jvmTarget = JavaVersion.VERSION_1_8.toString()
    }
  }
}

private fun Project.configureAndroid() {
  extensions.configure(com.android.build.gradle.BaseExtension::class.java) {
    it.compileOptions {
      it.sourceCompatibility = JavaVersion.VERSION_1_8
      it.targetCompatibility = JavaVersion.VERSION_1_8
    }
  }
}

Add to your root project:

// root/build.gradle[.kts]
plugins {
  id("net.mbonnin.one.eight").version("0.1")
}

Or using the buildscript:

// root/build.gradle[.kts]
buildscript {
  classpath("gradle.plugin.net.mbonnin:one-eight:0.1")
}

apply(plugin = "net.mbonnin.one.eight")