Can someone help me convert this piece of code from 2.12 to 2.13?
I have a piece of code which was originally suggested by Patrick Römer, which is giving me a deprecation warning when I try to convert my project to 2.13. IntelliJ suggests that import scala.collection.JavaConverters._ is deprecated.
When I look at this stackoverflow article, I get even more confused. The article in one place suggests to use JavaConverters and in another place suggests to use JavaConversions.
What is the correct way to convert this code to 2.13?
case class CacheByJboss() extends Cache {
type BDD_HASH = scala.collection.mutable.Map[(Int, Bdd, Bdd), BddNode]
// this code was suggested by Patrick Römer
// https://users.scala-lang.org/t/id-like-a-weak-hash-table-which-allows-gc-when-value-is-otherwise-unreferenced/4681/8?u=jimka
import org.jboss.util.collection._
import scala.collection.JavaConverters._
val hash = new WeakValueHashMap[(Int, Bdd, Bdd), BddNode].asScala
override def getBddSizeCount():(Long,Long) = {
(hash.size, numAllocations)
}
override def getOrCreate(label:Short,positive:Bdd,negative:Bdd):BddNode = {
hash.get((label, positive, negative)) match {
case Some(bdd: BddNode) => bdd
case None | Some(null) =>
val bdd = BddNode(label, positive, negative)
numAllocations = 1L + numAllocations
hash((label, positive, negative)) = bdd
bdd
}
}
}