Exception in chill

[M.Ahsen Taqi Kazmi]

I am trying to run the sample code for Chill-Scala from this [ link ][1]


I have two dummy case classes

one is User

    @SerialVersionUID(1)
    case class User(name :String, age : Int) extends Serializable

 
and the other is Student

    @SerialVersionUID(2)
    case class Student(sub : String , id : Int , user : User) extends Serializable

here is my code for serialization  that i have modified  from this github example [twitter/chill repo][1]

    object SeriDeseri {
      private val kryo = {
        val a = KryoSerializer.registerAll
        val k = new Kryo
        a(k)
        k
      }
   
      def toBytes(student : Student): Array[Byte] = {
        println("********** serializing")
        val b = new ByteArrayOutputStream
        val o = new Output(b)
        kryo.writeObject(o, student)
        o.close()
        b.toByteArray
      }
   
      def fromBytes[Student](bytes: Array[Byte])(implicit m: Manifest[Student]): Option[Student] = {
        println("********** Deserializing")
        val i = new Input(bytes)
        try {
          val t = kryo.readObject(i, m.runtimeClass.asInstanceOf[Class[Student]])
          Option(t)
        } catch {
          case NonFatal(e) => None
        } finally {
          i.close()
        }
      }
    }

 
 
 
 


  [1]: https://github.com/xitrum-framework/chill-scala

here is the code for my Main class

    val user = new User( "Ahsen", 14)
    val stu = new Student("oop", 12, user)
     
      val serial : Array[Byte] = SeriDeseri.toBytes(stu)
      val deserial :Option[Student] = SeriDeseri.fromBytes(serial)
      val obj  = deserial match{
        case Some(objec) => println(objec)
        case None => println("----------- Nothing was deserialized")
      }

Now the problem is when i run this code it gives me `java.lang.InstantiationError: scala.runtime.Nothing$` exception

here are complete stack traces

> [info] Running kryotest.Main

> ********** serializing

> ********** Deserializing
[error] (run-main-0) java.lang.InstantiationError: scala.runtime.Nothing$
> java.lang.InstantiationError: scala.runtime.Nothing$     at
> scala.runtime.Nothing$ConstructorAccess.newInstance(Unknown Source)
>     at
> com.esotericsoftware.kryo.Kryo$DefaultInstantiatorStrategy$1.newInstance(Kryo.java:1193)
>     at com.esotericsoftware.kryo.Kryo.newInstance(Kryo.java:1061)     at
> com.esotericsoftware.kryo.serializers.FieldSerializer.create(FieldSerializer.java:547)
>     at
> com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:523)
>     at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:657)     at
> com.test.hcast_serializer.SeriDeseri$.fromBytes(SeriDeseri.scala:32)
>     at kryotest.Main$.delayedEndpoint$kryotest$Main$1(Main.scala:31)     at
> kryotest.Main$delayedInit$body.apply(Main.scala:9)     at
> scala.Function0$class.apply$mcV$sp(Function0.scala:40)     at
> scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
>     at scala.App$$anonfun$main$1.apply(App.scala:76)     at
> scala.App$$anonfun$main$1.apply(App.scala:76)     at
> scala.collection.immutable.List.foreach(List.scala:383)     at
> scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:35)
>     at scala.App$class.main(App.scala:76)     at
> kryotest.Main$.main(Main.scala:9)     at kryotest.Main.main(Main.scala)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>     at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.lang.reflect.Method.invoke(Method.java:497) [trace] Stack
> trace suppressed: run last compile:run for the full output.
> java.lang.RuntimeException: Nonzero exit code: 1     at
> scala.sys.package$.error(package.scala:27) [trace] Stack trace
> suppressed: run last compile:run for the full output. [error]
> (compile:run) Nonzero exit code: 1 [error] Total time: 4 s, completed
> Aug 31, 2015 3:15:54 PM

Please tell me what am i doing wrong?