Simple SSP test doesn't terminate. Why?

[Thipor Kong]

Why does this simple application not terminate? The template is rendered fine.

object testScalate extends App {

  val engine = new TemplateEngine

  

  engine.resourceLoader = new FileResourceLoader {

    override def resource(uri: String): Option[Resource] =

      Some(Resource.fromText(uri, "<%@ var hello:String %>Hello, ${hello}!"))

  }

  println(engine.layout("xxx.ssp", Map("hello" -> "world")))

}

[Thipor Kong]

I have asked in scala-internals, why the PresentationCompilerThread isn't a daemon thread.