Deserialization issue for Scala.Symbol, in Scala 2.12 version, for Scala.Symbol Serialized in Scala 2.11

Question

import java.io. {FileInputStream, FileOutputStream, ObjectInputStream, ObjectOutputStream}
object SymbolSerializeDemo {
  def main(args: Array[String]): Unit = {
    val fileName = "file.ser"
    val symbolCheck: Symbol = Symbol("someSymbol")
    //serializeToFile(symbolCheck, fileName)
    deserializeFromFile(fileName)
  }
  private def serializeToFile(input: Symbol, fileName: String): Unit = {
    try {
      val file: FileOutputStream = new FileOutputStream(fileName)
      val out: ObjectOutputStream = new ObjectOutputStream(file)
      out.writeObject(input)
    }
  }
  private def deserializeFromFile(fileName: String): Unit = {
    try {
      val file: FileInputStream = new FileInputStream(fileName)
      val input: ObjectInputStream = new ObjectInputStream(file)
      val output = input.readObject.asInstanceOf[Symbol]
      println("Symbol after deseralization " + output.name)
    }
  }
}

I am trying to deserialized scala symbol, serialized in scala 2.11 but I am getting error as java.io.InvalidClassException: scala.Symbol; local class incompatible: stream classdesc serialVersionUID = 2966401305346518859, local class serialVersionUID = 6865603221856321286 Can we write custom serialization for this or any other option?

I tried adding serialVersionUID for class as well as for Symbol

Answer 1

I have fixed the issue by downgrading scala version from 2.12.17 to 2.12.6.