--- jsr166/src/test/tck/Collection8Test.java	2016/11/03 15:31:25	1.8
+++ jsr166/src/test/tck/Collection8Test.java	2016/11/03 16:53:13	1.9
@@ -81,6 +81,8 @@ public class Collection8Test extends JSR
         c.iterator().forEachRemaining(alwaysThrows);
         c.spliterator().forEachRemaining(alwaysThrows);
         assertFalse(c.spliterator().tryAdvance(alwaysThrows));
+        if (c.spliterator().hasCharacteristics(Spliterator.SIZED))
+            assertEquals(0, c.spliterator().estimateSize());
         if (Queue.class.isAssignableFrom(impl.klazz())) {
             Queue q = (Queue) c;
             assertNull(q.peek());
@@ -93,6 +95,7 @@ public class Collection8Test extends JSR
             assertNull(d.pollFirst());
             assertNull(d.pollLast());
             assertIteratorExhausted(d.descendingIterator());
+            d.descendingIterator().forEachRemaining(alwaysThrows);
         }
     }