--- jsr166/src/test/tck/AbstractQueuedLongSynchronizerTest.java	2019/08/13 00:54:51	1.46
+++ jsr166/src/test/tck/AbstractQueuedLongSynchronizerTest.java	2019/08/13 03:39:46	1.47
@@ -1265,7 +1265,7 @@ public class AbstractQueuedLongSynchroni
 
         // A synchronizer only offering a choice of failure modes
         class Sync extends AbstractQueuedLongSynchronizer {
-            boolean pleaseThrow;
+            volatile boolean pleaseThrow;
             @Override protected boolean tryAcquire(long ignored) {
                 if (pleaseThrow) throw ex;
                 return false;