--- jsr166/src/test/tck/ArrayDequeTest.java	2016/10/17 01:57:00	1.45
+++ jsr166/src/test/tck/ArrayDequeTest.java	2016/10/17 15:48:01	1.48
@@ -14,6 +14,7 @@ import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Queue;
 import java.util.Random;
+import java.util.Spliterator;
 import java.util.concurrent.ThreadLocalRandom;
 
 import junit.framework.Test;
@@ -989,6 +990,34 @@ public class ArrayDequeTest extends JSR1
     }
 
     /**
+     * Spliterator characteristics are as advertised
+     */
+    public void testSpliterator_characteristics() {
+        ArrayDeque q = new ArrayDeque();
+        Spliterator s = q.spliterator();
+        int characteristics = s.characteristics();
+        int required = Spliterator.NONNULL
+            | Spliterator.ORDERED
+            | Spliterator.SIZED
+            | Spliterator.SUBSIZED;
+        assertEquals(required, characteristics & required);
+        assertTrue(s.hasCharacteristics(required));
+        assertEquals(0, characteristics
+                     & (Spliterator.CONCURRENT
+                        | Spliterator.DISTINCT
+                        | Spliterator.IMMUTABLE
+                        | Spliterator.SORTED));
+    }
+
+    /**
+     * Spliterator.getComparator always throws IllegalStateException
+     */
+    public void testSpliterator_getComparator() {
+        assertThrows(IllegalStateException.class,
+                     () -> new ArrayDeque().spliterator().getComparator());
+    }
+
+    /**
      * Handle capacities near Integer.MAX_VALUE.
      * ant -Dvmoptions=-Xmx24g -Djsr166.expensiveTests=true -Djsr166.tckTestClass=ArrayDequeTest -Djsr166.methodFilter=testHuge tck
      */
@@ -1006,7 +1035,7 @@ public class ArrayDequeTest extends JSR1
                      () -> new ArrayDeque<>(Integer.MAX_VALUE));
 
         q = populatedDeque(0);
-        q.addAll(Collections.nCopies(maxSize - 2, (Integer) 42));
+        assertTrue(q.addAll(Collections.nCopies(maxSize - 2, (Integer) 42)));
         assertEquals((Integer) 42, q.peekFirst());
         assertEquals((Integer) 42, q.peekLast());
         assertEquals(maxSize - 2, q.size());