如何在Kotlin中将对象转换为字节数组

import java.io.ByteArrayOutputStream
import java.io.ObjectOutputStream

fun main() {
    val obj = MyObject("Hello, World!") // 要转换的对象
    val byteArray = convertObjectToByteArray(obj)
    println(byteArray.contentToString())
}

data class MyObject(val message: String) : java.io.Serializable

fun convertObjectToByteArray(obj: Any): ByteArray {
    val byteArrayOutputStream = ByteArrayOutputStream()
    val objectOutputStream = ObjectOutputStream(byteArrayOutputStream)
    objectOutputStream.writeObject(obj)
    objectOutputStream.flush()
    return byteArrayOutputStream.toByteArray()
}