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object Test {
private type Clearable = { def clear(): Unit }
private def choke() = {
try new Array[Object]((Runtime.getRuntime().maxMemory min Int.MaxValue).toInt)
catch {
case _: OutOfMemoryError => // what do you mean, out of memory?
case t: Throwable => println(t)
}
}
private def f(x: Clearable) = x.clear()
class Choker(id: Int) extends Thread {
private def g(iteration: Int) = {
val map = scala.collection.mutable.Map[Int, Int](1 -> 2)
try f(map) catch { case t: NullPointerException => println(s"Failed at $id/$iteration") ; throw t }
choke()
}
override def run() {
1 to 50 foreach g
}
}
def main(args: Array[String]): Unit = {
val threads = 1 to 3 map (id => new Choker(id))
threads foreach (_.start())
threads foreach (_.join())
println("All threads completed.")
}
}
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