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* Other contributors include John Vint |
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*/ |
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< |
import junit.framework.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.concurrent.Phaser; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Phaser; |
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import java.util.concurrent.TimeoutException; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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import java.util.concurrent.atomic.AtomicBoolean; |
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import java.util.concurrent.atomic.AtomicInteger; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class PhaserTest extends JSR166TestCase { |
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|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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main(suite(), args); |
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} |
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|
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public static Test suite() { |
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} |
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/** |
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* register() correctly returns the current barrier phase number when |
170 |
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* invoked |
169 |
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* register() correctly returns the current barrier phase number |
170 |
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* when invoked |
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*/ |
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public void testRegister3() { |
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Phaser phaser = new Phaser(); |
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} |
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|
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/** |
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* register causes the next arrive to not increment the phase rather retain |
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* the phase number |
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* register causes the next arrive to not increment the phase |
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* rather retain the phase number |
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*/ |
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public void testRegister4() { |
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Phaser phaser = new Phaser(1); |
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} |
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|
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/** |
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* register on a subphaser that is currently empty succeeds, even |
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* in the presence of another non-empty subphaser |
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*/ |
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public void testRegisterEmptySubPhaser() { |
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Phaser root = new Phaser(); |
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Phaser child1 = new Phaser(root, 1); |
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Phaser child2 = new Phaser(root, 0); |
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assertEquals(0, child2.register()); |
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assertState(root, 0, 2, 2); |
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assertState(child1, 0, 1, 1); |
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assertState(child2, 0, 1, 1); |
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assertEquals(0, child2.arriveAndDeregister()); |
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assertState(root, 0, 1, 1); |
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assertState(child1, 0, 1, 1); |
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assertState(child2, 0, 0, 0); |
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assertEquals(0, child2.register()); |
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assertEquals(0, child2.arriveAndDeregister()); |
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assertState(root, 0, 1, 1); |
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assertState(child1, 0, 1, 1); |
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assertState(child2, 0, 0, 0); |
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assertEquals(0, child1.arriveAndDeregister()); |
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assertTerminated(root, 1); |
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assertTerminated(child1, 1); |
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assertTerminated(child2, 1); |
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} |
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|
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/** |
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* Invoking bulkRegister with a negative parameter throws an |
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* IllegalArgumentException |
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*/ |
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} |
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|
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/** |
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* bulkRegister should correctly record the number of unarrived parties with |
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* the number of parties being registered |
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* bulkRegister should correctly record the number of unarrived |
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> |
* parties with the number of parties being registered |
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*/ |
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public void testBulkRegister2() { |
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Phaser phaser = new Phaser(); |
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public void testArrive2() { |
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final Phaser phaser = new Phaser(); |
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assertEquals(0, phaser.register()); |
305 |
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List<Thread> threads = new ArrayList<Thread>(); |
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List<Thread> threads = new ArrayList<>(); |
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for (int i = 0; i < 10; i++) { |
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assertEquals(0, phaser.register()); |
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threads.add(newStartedThread(new CheckedRunnable() { |
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* registered or unarrived parties would become negative |
339 |
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*/ |
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public void testArriveAndDeregister1() { |
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Phaser phaser = new Phaser(); |
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try { |
314 |
– |
Phaser phaser = new Phaser(); |
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phaser.arriveAndDeregister(); |
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shouldThrow(); |
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} catch (IllegalStateException success) {} |
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public void testAwaitAdvance4() { |
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final Phaser phaser = new Phaser(4); |
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final AtomicInteger count = new AtomicInteger(0); |
623 |
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List<Thread> threads = new ArrayList<Thread>(); |
623 |
> |
List<Thread> threads = new ArrayList<>(); |
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for (int i = 0; i < 4; i++) |
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threads.add(newStartedThread(new CheckedRunnable() { |
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public void realRun() { |
627 |
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for (int k = 0; k < 3; k++) { |
628 |
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assertEquals(2*k+1, phaser.arriveAndAwaitAdvance()); |
628 |
> |
assertEquals(2 * k + 1, phaser.arriveAndAwaitAdvance()); |
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count.incrementAndGet(); |
630 |
< |
assertEquals(2*k+1, phaser.arrive()); |
631 |
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assertEquals(2*k+2, phaser.awaitAdvance(2*k+1)); |
632 |
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assertEquals(count.get(), 4*(k+1)); |
630 |
> |
assertEquals(2 * k + 1, phaser.arrive()); |
631 |
> |
assertEquals(2 * k + 2, phaser.awaitAdvance(2 * k + 1)); |
632 |
> |
assertEquals(4 * (k + 1), count.get()); |
633 |
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}}})); |
634 |
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|
635 |
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for (Thread thread : threads) |
644 |
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assertEquals(1, phaser.awaitAdvance(phaser.arrive())); |
645 |
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assertEquals(1, phaser.getPhase()); |
646 |
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assertEquals(1, phaser.register()); |
647 |
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List<Thread> threads = new ArrayList<Thread>(); |
647 |
> |
List<Thread> threads = new ArrayList<>(); |
648 |
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for (int i = 0; i < 8; i++) { |
649 |
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final CountDownLatch latch = new CountDownLatch(1); |
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final boolean goesFirst = ((i & 1) == 0); |
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*/ |
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public void testAwaitAdvanceTieredPhaser() throws Exception { |
674 |
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final Phaser parent = new Phaser(); |
675 |
< |
final List<Phaser> zeroPartyChildren = new ArrayList<Phaser>(3); |
676 |
< |
final List<Phaser> onePartyChildren = new ArrayList<Phaser>(3); |
675 |
> |
final List<Phaser> zeroPartyChildren = new ArrayList<>(3); |
676 |
> |
final List<Phaser> onePartyChildren = new ArrayList<>(3); |
677 |
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for (int i = 0; i < 3; i++) { |
678 |
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zeroPartyChildren.add(new Phaser(parent, 0)); |
679 |
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onePartyChildren.add(new Phaser(parent, 1)); |
680 |
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} |
681 |
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final List<Phaser> phasers = new ArrayList<Phaser>(); |
681 |
> |
final List<Phaser> phasers = new ArrayList<>(); |
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phasers.addAll(zeroPartyChildren); |
683 |
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phasers.addAll(onePartyChildren); |
684 |
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phasers.add(parent); |
685 |
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for (Phaser phaser : phasers) { |
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assertEquals(-42, phaser.awaitAdvance(-42)); |
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assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
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assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
688 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS)); |
689 |
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} |
690 |
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|
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for (Phaser child : onePartyChildren) |
693 |
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for (Phaser phaser : phasers) { |
694 |
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assertEquals(-42, phaser.awaitAdvance(-42)); |
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assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
696 |
< |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
696 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS)); |
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assertEquals(1, phaser.awaitAdvance(0)); |
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assertEquals(1, phaser.awaitAdvanceInterruptibly(0)); |
699 |
< |
assertEquals(1, phaser.awaitAdvanceInterruptibly(0, SMALL_DELAY_MS, MILLISECONDS)); |
699 |
> |
assertEquals(1, phaser.awaitAdvanceInterruptibly(0, MEDIUM_DELAY_MS, MILLISECONDS)); |
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} |
701 |
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|
702 |
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for (Phaser child : onePartyChildren) |
704 |
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for (Phaser phaser : phasers) { |
705 |
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assertEquals(-42, phaser.awaitAdvance(-42)); |
706 |
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assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42)); |
707 |
< |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, SMALL_DELAY_MS, MILLISECONDS)); |
707 |
> |
assertEquals(-42, phaser.awaitAdvanceInterruptibly(-42, MEDIUM_DELAY_MS, MILLISECONDS)); |
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assertEquals(2, phaser.awaitAdvance(0)); |
709 |
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assertEquals(2, phaser.awaitAdvanceInterruptibly(0)); |
710 |
< |
assertEquals(2, phaser.awaitAdvanceInterruptibly(0, SMALL_DELAY_MS, MILLISECONDS)); |
710 |
> |
assertEquals(2, phaser.awaitAdvanceInterruptibly(0, MEDIUM_DELAY_MS, MILLISECONDS)); |
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assertEquals(2, phaser.awaitAdvance(1)); |
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assertEquals(2, phaser.awaitAdvanceInterruptibly(1)); |
713 |
< |
assertEquals(2, phaser.awaitAdvanceInterruptibly(1, SMALL_DELAY_MS, MILLISECONDS)); |
713 |
> |
assertEquals(2, phaser.awaitAdvanceInterruptibly(1, MEDIUM_DELAY_MS, MILLISECONDS)); |
714 |
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} |
715 |
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} |
716 |
|
|
720 |
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public void testAwaitAdvance6() { |
721 |
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final Phaser phaser = new Phaser(3); |
722 |
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final CountDownLatch pleaseForceTermination = new CountDownLatch(2); |
723 |
< |
final List<Thread> threads = new ArrayList<Thread>(); |
723 |
> |
final List<Thread> threads = new ArrayList<>(); |
724 |
|
for (int i = 0; i < 2; i++) { |
725 |
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Runnable r = new CheckedRunnable() { |
726 |
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public void realRun() { |
748 |
|
* unarrived parties |
749 |
|
*/ |
750 |
|
public void testArriveAndAwaitAdvance1() { |
751 |
+ |
Phaser phaser = new Phaser(); |
752 |
|
try { |
724 |
– |
Phaser phaser = new Phaser(); |
753 |
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phaser.arriveAndAwaitAdvance(); |
754 |
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shouldThrow(); |
755 |
|
} catch (IllegalStateException success) {} |
764 |
|
final Phaser phaser = new Phaser(1); |
765 |
|
final int THREADS = 3; |
766 |
|
final CountDownLatch pleaseArrive = new CountDownLatch(THREADS); |
767 |
< |
final List<Thread> threads = new ArrayList<Thread>(); |
767 |
> |
final List<Thread> threads = new ArrayList<>(); |
768 |
|
for (int i = 0; i < THREADS; i++) |
769 |
|
threads.add(newStartedThread(new CheckedRunnable() { |
770 |
|
public void realRun() { |