// to, ClientConn.RoundTrip can be called with a bogus
	// new(http.Request) to release the stream reservation.
	GetClientConn(req *Request, addr string) (*http2ClientConn, error)
	MarkDead(*http2ClientConn)
}

// clientConnPoolIdleCloser is the interface implemented by ClientConnPool
// implementations which can close their idle connections.
type http2clientConnPoolIdleCloser interface {

            objectOutputStream.writeInt(42)
        }

        private
        fun readObject(objectInputStream: ObjectInputStream) {
            markRead("superclass")
            intValue = objectInputStream.readInt()
        }

        protected
        fun markRead(from: String) {
            if (readOrder == null) {
                readOrder = arrayListOf()
            }
            readOrder!!.add(from)