package test;

import scala.collection.mutable.ListBuffer
import java.io.ByteArrayOutputStream
import java.io.ObjectOutputStream

object serial extends scala.Application
{
  override def main (args : Array[String]) : Unit = {
    val v = new ListBuffer[Int]()
    v += 1
    Console.out.println(v)

    val baos = new ByteArrayOutputStream()
    val oos = new ObjectOutputStream(baos)
    //oos.writeObject(v.toList) // ok
    oos.writeObject(v) // java.io.NotSerializableException: scala.collection.mutable.ListBuffer
    oos.close()
  }
}