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root/jsr166/jsr166/src/test/tck/LockSupportTest.java
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Comparing jsr166/src/test/tck/LockSupportTest.java (file contents):
Revision 1.25 by jsr166, Sat Apr 25 04:55:31 2015 UTC vs.
Revision 1.27 by jsr166, Fri May 12 18:12:52 2017 UTC

# Line 25 | Line 25 | public class LockSupportTest extends JSR
25          return new TestSuite(LockSupportTest.class);
26      }
27  
28 +    static {
29 +        // Reduce the risk of rare disastrous classloading in first call to
30 +        // LockSupport.park: https://bugs.openjdk.java.net/browse/JDK-8074773
31 +        Class<?> ensureLoaded = LockSupport.class;
32 +    }
33 +
34      /**
35       * Returns the blocker object used by tests in this file.
36       * Any old object will do; we'll return a convenient one.
# Line 250 | Line 256 | public class LockSupportTest extends JSR
256      public void testParkTimesOut(final ParkMethod parkMethod) {
257          Thread t = newStartedThread(new CheckedRunnable() {
258              public void realRun() {
259 <                for (;;) {
259 >                for (int tries = MAX_SPURIOUS_WAKEUPS; tries-->0; ) {
260                      long startTime = System.nanoTime();
261                      parkMethod.park(timeoutMillis());
262                      // park may return spuriously
263                      if (millisElapsedSince(startTime) >= timeoutMillis())
264                          return;
265                  }
266 +                fail("too many consecutive spurious wakeups?");
267              }});
268  
269          awaitTermination(t);

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