--- jsr166/src/test/tck/AbstractQueuedSynchronizerTest.java	2018/07/22 22:13:55	1.65
+++ jsr166/src/test/tck/AbstractQueuedSynchronizerTest.java	2019/08/13 23:05:18	1.68
@@ -13,7 +13,6 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashSet;
-import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.locks.AbstractQueuedSynchronizer;
 import java.util.concurrent.locks.AbstractQueuedSynchronizer.ConditionObject;
 
@@ -1316,7 +1315,7 @@ public class AbstractQueuedSynchronizerT
 
         // A synchronizer only offering a choice of failure modes
         class Sync extends AbstractQueuedSynchronizer {
-            boolean pleaseThrow;
+            volatile boolean pleaseThrow;
             @Override protected boolean tryAcquire(int ignored) {
                 if (pleaseThrow) throw ex;
                 return false;
@@ -1338,7 +1337,7 @@ public class AbstractQueuedSynchronizerT
         final Thread thread = newStartedThread(new CheckedRunnable() {
             public void realRun() {
                 try {
-                    if (ThreadLocalRandom.current().nextBoolean())
+                    if (randomBoolean())
                         s.acquire(1);
                     else
                         s.acquireShared(1);