be Scala 2.13 friendly

for now, for the 2.13 community build. and as a start at possible
future real 2.13 support

2 files changed, 11 insertions, 2 deletions

diff --git a/build.sbt b/build.sbt
index b03643f..2e451e0 100644
--- a/build.sbt
+++ b/build.sbt
@@ -26,6 +26,14 @@ libraryDependencies ++= Seq(
   "org.scalacheck" %% "scalacheck" % "1.13.4" % "test"
 )
 
+libraryDependencies ++=
+  (CrossVersion.partialVersion(scalaVersion.value) match {
+    case Some((2, n)) if n >= 13 =>
+      Seq("org.scala-lang.modules" %% "scala-parallel-collections" % "0.1.1")
+    case _ =>
+      Seq()
+  })
+
 (scalacOptions in doc) ++= Seq("-doc-title", name.value + " " + version.value)
 
 // generate boilerplate
diff --git a/src/test/scala/spray/json/JsonParserSpec.scala b/src/test/scala/spray/json/JsonParserSpec.scala
index 0f7ae7f..d7db026 100644
--- a/src/test/scala/spray/json/JsonParserSpec.scala
+++ b/src/test/scala/spray/json/JsonParserSpec.scala
@@ -74,7 +74,8 @@ class JsonParserSpec extends Specification {
     }
     "be reentrant" in {
       val largeJsonSource = scala.io.Source.fromInputStream(getClass.getResourceAsStream("/test.json")).mkString
-      List.fill(20)(largeJsonSource).par.map(JsonParser(_)).toList.map {
+      import scala.collection.parallel.immutable.ParSeq
+      ParSeq.fill(20)(largeJsonSource).map(JsonParser(_)).toList.map {
           _.asInstanceOf[JsObject].fields("questions").asInstanceOf[JsArray].elements.size
       } === List.fill(20)(100)
     }
@@ -108,4 +109,4 @@ class JsonParserSpec extends Specification {
           |""".stripMargin
     }
   }
-}
\ No newline at end of file
+}