Copy files from dependency jar with kotlin build skript

Re-Reading the quoted answer in groovy I just realized my mistake. The configuration has to be declared as not beeing transitive.

val myExtraDependencyby configurations.creating {
    setTransitive(false) // <-- This was missing
}

dependencies {
    myExtraDependency("com.acme:somedependency:1.0.0")
}

val unzipMyExtraDependency by tasks.creating(Copy::class) {
    group = "unzip"
    from(zipTree(myExtraDependency.singleFile))
    include("/interesting_files/**")
    into("$projectDir/build/tmp/")
}