--- jsr166/src/test/tck/DelayQueueTest.java	2017/05/29 22:44:26	1.88
+++ jsr166/src/test/tck/DelayQueueTest.java	2019/08/11 22:29:26	1.91
@@ -69,7 +69,7 @@ public class DelayQueueTest extends JSR1
         // suppress [overrides] javac warning
         public int hashCode() { return pseudodelay; }
         public long getDelay(TimeUnit ignore) {
-            return Integer.MIN_VALUE + pseudodelay;
+            return (long) Integer.MIN_VALUE + pseudodelay;
         }
         public String toString() {
             return String.valueOf(pseudodelay);
@@ -357,7 +357,7 @@ public class DelayQueueTest extends JSR1
             }});
 
         await(pleaseInterrupt);
-        assertThreadBlocks(t, Thread.State.WAITING);
+        if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
         t.interrupt();
         awaitTermination(t);
     }
@@ -416,7 +416,7 @@ public class DelayQueueTest extends JSR1
 
                 Thread.currentThread().interrupt();
                 try {
-                    q.poll(LONG_DELAY_MS, MILLISECONDS);
+                    q.poll(randomTimeout(), randomTimeUnit());
                     shouldThrow();
                 } catch (InterruptedException success) {}
                 assertFalse(Thread.interrupted());
@@ -432,7 +432,7 @@ public class DelayQueueTest extends JSR1
             }});
 
         await(pleaseInterrupt);
-        assertThreadBlocks(t, Thread.State.TIMED_WAITING);
+        if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
         t.interrupt();
         awaitTermination(t);
         checkEmpty(q);
@@ -566,10 +566,12 @@ public class DelayQueueTest extends JSR1
      */
     public void testToArray() throws InterruptedException {
         DelayQueue q = populatedQueue(SIZE);
-        Object[] o = q.toArray();
-        Arrays.sort(o);
-        for (int i = 0; i < o.length; i++)
-            assertSame(o[i], q.take());
+        Object[] a = q.toArray();
+        assertSame(Object[].class, a.getClass());
+        Arrays.sort(a);
+        for (Object o : a)
+            assertSame(o, q.take());
+        assertTrue(q.isEmpty());
     }
 
     /**
@@ -581,8 +583,9 @@ public class DelayQueueTest extends JSR1
         PDelay[] array = q.toArray(ints);
         assertSame(ints, array);
         Arrays.sort(ints);
-        for (int i = 0; i < ints.length; i++)
-            assertSame(ints[i], q.remove());
+        for (PDelay o : ints)
+            assertSame(o, q.remove());
+        assertTrue(q.isEmpty());
     }
 
     /**