configurations.create("externalClasspath")

val usage = Attribute.of("usage", String::class.java)
val artifactType = Attribute.of("artifactType", String::class.java)

dependencies {
    registerTransform(ClassRelocator::class) {
        from.attribute(artifactType, "jar")
        to.attribute(artifactType, "relocated-classes")
        parameters {

configurations.create("externalClasspath")

def usage = Attribute.of('usage', String)
def artifactType = Attribute.of('artifactType', String)

dependencies {
    registerTransform(ClassRelocator) {
        from.attribute(artifactType, "jar")
        to.attribute(artifactType, "relocated-classes")
        parameters {
            externalClasspath.from(configurations.externalClasspath)