--- jsr166/src/test/tck/ConcurrentLinkedDequeTest.java	2018/06/22 00:04:58	1.33
+++ jsr166/src/test/tck/ConcurrentLinkedDequeTest.java	2019/08/14 23:06:11	1.35
@@ -913,7 +913,7 @@ public class ConcurrentLinkedDequeTest e
     }
 
     void runAsync(Runnable r1, Runnable r2) {
-        boolean b = ThreadLocalRandom.current().nextBoolean();
+        boolean b = randomBoolean();
         CompletableFuture<Void> f1 = CompletableFuture.runAsync(b ? r1 : r2);
         CompletableFuture<Void> f2 = CompletableFuture.runAsync(b ? r2 : r1);
         f1.join();
@@ -976,10 +976,6 @@ public class ConcurrentLinkedDequeTest e
         }
     }
 
-    <T> T chooseRandomly(T... choices) {
-        return choices[ThreadLocalRandom.current().nextInt(choices.length)];
-    }
-
     /**
      * Non-traversing Deque operations (that return null) are linearizable.
      * Don't return null when the deque is observably never empty.