Nil.min throws UnsupportedOperationException instead of NoSuchElementException

Author: xirc

core/src/main/scala/scala/collection/parallel/ParIterableLike.scala

@@ -471,6 +471,8 @@ extends IterableOnce[T @uncheckedVariance]
   }
 
   def max[U >: T](implicit ord: Ordering[U]): T = {
+    if (isEmpty) throw new UnsupportedOperationException("empty.max")
+
     tasksupport.executeAndWaitResult(new Max(ord, splitter)).get.asInstanceOf[T]
   }
 

junit/src/test/scala/scala/collection/parallel/mutable/ParArrayTest.scala

@@ -138,4 +138,9 @@ class ParArrayTest extends scala.collection.concurrent.ctries_old.Spec {
     evaluating { ParArray.empty[Int].min }.shouldProduce[UnsupportedOperationException]()
   }
 
+  @Test
+  def `empty max`: Unit = {
+    evaluating { ParArray.empty[Int].max }.shouldProduce[UnsupportedOperationException]()
+  }
+
 }