java set转scala set_如何将scala.collection.Set转换为RDD中可序列化的java.util.Set

我有一个

scala.collection.Set scalaSet：设置[Long].

我怎样才能将它转换为带序列化的java.util.Set.我尝试了以下代码,但得到了

java.io.notserializableexception：scala.collection.convert.wrappers $setWrapper

import scala.collection.JavaConversions._

Class MySerializableClass extends Serializable {

// method to implement the Scala to Java operations on the given RDD

def rddOps(dummyRDD: RDD[(Long, Set[Long])]) = {

val dummyRDDWithJavaSet = dummyRDD.map( {

case(key, value) => (key, scalaToJavaSetConverter(value))

}

// scala Set to Java Set Converters

def scalaToJavaSetConverter(scalaSet: Set[Long]): java.util.Set[Long] = {

val javaSet : java.util.Set[Long] = setAsJavaSet(scalaSet)

javaSet

}

}