import static org.gradle.api.JavaVersion.VERSION_1_8 /* * Gradle script plugin: Configure a module such that Java and Kotlin * are always compiled for Java 8. */ apply plugin: 'kotlin' tasks.withType(AbstractCompile) { // This is a bit ugly, but Gradle isn't recognising the KotlinCompile task // as it does the built-in JavaCompile task. if (it.class.name.startsWith('org.jetbrains.kotlin.gradle.tasks.KotlinCompile')) { kotlinOptions { jvmTarget = VERSION_1_8 } } } tasks.withType(JavaCompile) { sourceCompatibility = VERSION_1_8 targetCompatibility = VERSION_1_8 }