How to set up Kotlin's byte code version in Gradle project to Java 8?

Question

In Kotlin project, what is a proper Gradle script to make sure my classes will be compiled to byte code ver 52 (Java 8)?

For some reason my classes are compiled as v

Answer 1

In your build.gradle.kts:

    tasks {
        val java = "11"

        compileKotlin { 
           kotlinOptions { jvmTarget = java }
           sourceCompatibility = java
        }
    }

Or like this:

tasks {
    withType { kotlinOptions { jvmTarget = "11" } }
}