something eating stream contents

import org.http4k.client.ApacheClient
import org.http4k.core.HttpHandler
import org.http4k.core.Method.POST
import org.http4k.core.Request
import org.http4k.core.Response
import org.http4k.core.Status.Companion.OK
import org.http4k.server.Jetty
import org.http4k.server.asServer

fun main() {
    val app: HttpHandler = { req: Request ->
        println("HEADER WAS: " + req.header("foobar"))
        Response(OK).body(req.body.stream)
    }

    val server = app.asServer(Jetty(10000)).start()

    val request = Request(POST, "http://localhost:10000")
        .header("foobar", "headervalue")
        .body("hello".byteInputStream())

    println("Response was: " + ApacheClient()(request).bodyString())

    server.stop()
}