NotSerializableException with a scala script but when copy/paste into a scala console, no error at all

Hi all,

I was trying to understand why the following script always return
"java.io.NotSerializableException: Main$$anon$1", then I try to
execute each lines into a scala console, and discover that every thing
was working fine. Is this a limitation with scala scripting (which
doesn't apply to a scala console) ?

#!/bin/sh
exec scala -deprecation -savecompiled "$0" "$@"
!#
import java.io._

case class Common(properties:java.util.Properties) extends
Serializable
case class Server(name:String, ip:String, common:Common) extends
Serializable
case class Service(server:Server, name:String, port:Int,
common:Common) extends Serializable

val cmm1=Common(new java.util.Properties())
val srv1=Server("localhost", "127.0.0.1",cmm1)
val svc1=Service(srv1, "httpd", 80, cmm1)

val bufout = new ByteArrayOutputStream()
val obout = new ObjectOutputStream(bufout)
obout.writeObject(svc1)

val bufin = new ByteArrayInputStream(bufout.toByteArray)
val obin = new ObjectInputStream(bufin)
val svc2 = obin.readObject().asInstanceOf[Service]

assert(svc2 == svc1)
svc2.common.properties.put("toto", "tata")
assert(svc2.common == svc2.server.common)

The exact exception stack trace is :
java.io.NotSerializableException: Main$$anon$1
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:
1164)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:
1518)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:
1483)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:
1400)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:
1158)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:
330)
at Main$$anon$1.(sertest.scala:35)
at Main$.main(sertest.scala:1)
at Main.main(sertest.scala)

regards,
David.