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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.27 by jsr166, Tue Oct 19 00:43:49 2010 UTC vs.
Revision 1.62 by jsr166, Tue Oct 6 00:03:55 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	–	import junit.framework.*;
8	–	import java.util.*;
9	–	import java.util.concurrent.*;
7		import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	<	import java.io.*;
8	>
9	>	import java.util.ArrayList;
10	>	import java.util.Arrays;
11	>	import java.util.Collection;
12	>	import java.util.Deque;
13	>	import java.util.Iterator;
14	>	import java.util.NoSuchElementException;
15	>	import java.util.Queue;
16	>	import java.util.concurrent.BlockingDeque;
17	>	import java.util.concurrent.BlockingQueue;
18	>	import java.util.concurrent.CountDownLatch;
19	>	import java.util.concurrent.Executors;
20	>	import java.util.concurrent.ExecutorService;
21	>	import java.util.concurrent.LinkedBlockingDeque;
22	>
23	>	import junit.framework.Test;
24
25		public class LinkedBlockingDequeTest extends JSR166TestCase {
26
#	Line 20 | Line 32 | public class LinkedBlockingDequeTest ext
32
33		public static class Bounded extends BlockingQueueTest {
34		protected BlockingQueue emptyCollection() {
35	<	return new LinkedBlockingDeque(20);
35	>	return new LinkedBlockingDeque(SIZE);
36		}
37		}
38
39		public static void main(String[] args) {
40	<	junit.textui.TestRunner.run(suite());
40	>	main(suite(), args);
41		}
42
43		public static Test suite() {
#	Line 35 | Line 47 | public class LinkedBlockingDequeTest ext
47		}
48
49		/**
50	<	* Create a deque of given size containing consecutive
50	>	* Returns a new deque of given size containing consecutive
51		* Integers 0 ... n.
52		*/
53	<	private LinkedBlockingDeque populatedDeque(int n) {
54	<	LinkedBlockingDeque q = new LinkedBlockingDeque(n);
53	>	private LinkedBlockingDeque<Integer> populatedDeque(int n) {
54	>	LinkedBlockingDeque<Integer> q =
55	>	new LinkedBlockingDeque<Integer>(n);
56		assertTrue(q.isEmpty());
57		for (int i = 0; i < n; i++)
58		assertTrue(q.offer(new Integer(i)));
#	Line 69 | Line 82 | public class LinkedBlockingDequeTest ext
82		public void testSize() {
83		LinkedBlockingDeque q = populatedDeque(SIZE);
84		for (int i = 0; i < SIZE; ++i) {
85	<	assertEquals(SIZE-i, q.size());
85	>	assertEquals(SIZE - i, q.size());
86		q.removeFirst();
87		}
88		for (int i = 0; i < SIZE; ++i) {
#	Line 79 | Line 92 | public class LinkedBlockingDequeTest ext
92		}
93
94		/**
95	<	* offer(null) throws NPE
95	>	* offerFirst(null) throws NullPointerException
96		*/
97		public void testOfferFirstNull() {
98	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
99		try {
86	–	LinkedBlockingDeque q = new LinkedBlockingDeque();
100		q.offerFirst(null);
101		shouldThrow();
102		} catch (NullPointerException success) {}
103		}
104
105		/**
106	+	* offerLast(null) throws NullPointerException
107	+	*/
108	+	public void testOfferLastNull() {
109	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
110	+	try {
111	+	q.offerLast(null);
112	+	shouldThrow();
113	+	} catch (NullPointerException success) {}
114	+	}
115	+
116	+	/**
117		* OfferFirst succeeds
118		*/
119		public void testOfferFirst() {
#	Line 123 | Line 147 | public class LinkedBlockingDequeTest ext
147		*/
148		public void testPollLast() {
149		LinkedBlockingDeque q = populatedDeque(SIZE);
150	<	for (int i = SIZE-1; i >= 0; --i) {
150	>	for (int i = SIZE - 1; i >= 0; --i) {
151		assertEquals(i, q.pollLast());
152		}
153		assertNull(q.pollLast());
#	Line 162 | Line 186 | public class LinkedBlockingDequeTest ext
186		*/
187		public void testPeekLast() {
188		LinkedBlockingDeque q = populatedDeque(SIZE);
189	<	for (int i = SIZE-1; i >= 0; --i) {
189	>	for (int i = SIZE - 1; i >= 0; --i) {
190		assertEquals(i, q.peekLast());
191		assertEquals(i, q.pollLast());
192		assertTrue(q.peekLast() == null ||
#	Line 192 | Line 216 | public class LinkedBlockingDequeTest ext
216		*/
217		public void testLastElement() {
218		LinkedBlockingDeque q = populatedDeque(SIZE);
219	<	for (int i = SIZE-1; i >= 0; --i) {
219	>	for (int i = SIZE - 1; i >= 0; --i) {
220		assertEquals(i, q.getLast());
221		assertEquals(i, q.pollLast());
222		}
#	Line 252 | Line 276 | public class LinkedBlockingDequeTest ext
276		*/
277		public void testRemoveFirstOccurrence() {
278		LinkedBlockingDeque q = populatedDeque(SIZE);
279	<	for (int i = 1; i < SIZE; i+=2) {
279	>	for (int i = 1; i < SIZE; i += 2) {
280		assertTrue(q.removeFirstOccurrence(new Integer(i)));
281		}
282	<	for (int i = 0; i < SIZE; i+=2) {
282	>	for (int i = 0; i < SIZE; i += 2) {
283		assertTrue(q.removeFirstOccurrence(new Integer(i)));
284	<	assertFalse(q.removeFirstOccurrence(new Integer(i+1)));
284	>	assertFalse(q.removeFirstOccurrence(new Integer(i + 1)));
285		}
286		assertTrue(q.isEmpty());
287		}
#	Line 267 | Line 291 | public class LinkedBlockingDequeTest ext
291		*/
292		public void testRemoveLastOccurrence() {
293		LinkedBlockingDeque q = populatedDeque(SIZE);
294	<	for (int i = 1; i < SIZE; i+=2) {
294	>	for (int i = 1; i < SIZE; i += 2) {
295		assertTrue(q.removeLastOccurrence(new Integer(i)));
296		}
297	<	for (int i = 0; i < SIZE; i+=2) {
297	>	for (int i = 0; i < SIZE; i += 2) {
298		assertTrue(q.removeLastOccurrence(new Integer(i)));
299	<	assertFalse(q.removeLastOccurrence(new Integer(i+1)));
299	>	assertFalse(q.removeLastOccurrence(new Integer(i + 1)));
300		}
301		assertTrue(q.isEmpty());
302		}
#	Line 297 | Line 321 | public class LinkedBlockingDequeTest ext
321		assertSame(four, q.peekLast());
322		}
323
300	–
324		/**
325		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
326		* none given
#	Line 308 | Line 331 | public class LinkedBlockingDequeTest ext
331		}
332
333		/**
334	<	* Constructor throws IAE if capacity argument nonpositive
334	>	* Constructor throws IllegalArgumentException if capacity argument nonpositive
335		*/
336		public void testConstructor2() {
337		try {
338	<	LinkedBlockingDeque q = new LinkedBlockingDeque(0);
338	>	new LinkedBlockingDeque(0);
339		shouldThrow();
340		} catch (IllegalArgumentException success) {}
341		}
342
343		/**
344	<	* Initializing from null Collection throws NPE
344	>	* Initializing from null Collection throws NullPointerException
345		*/
346		public void testConstructor3() {
347		try {
348	<	LinkedBlockingDeque q = new LinkedBlockingDeque(null);
348	>	new LinkedBlockingDeque(null);
349		shouldThrow();
350		} catch (NullPointerException success) {}
351		}
352
353		/**
354	<	* Initializing from Collection of null elements throws NPE
354	>	* Initializing from Collection of null elements throws NullPointerException
355		*/
356		public void testConstructor4() {
357	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
358		try {
359	<	Integer[] ints = new Integer[SIZE];
336	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
359	>	new LinkedBlockingDeque(elements);
360		shouldThrow();
361		} catch (NullPointerException success) {}
362		}
363
364		/**
365	<	* Initializing from Collection with some null elements throws NPE
365	>	* Initializing from Collection with some null elements throws
366	>	* NullPointerException
367		*/
368		public void testConstructor5() {
369	+	Integer[] ints = new Integer[SIZE];
370	+	for (int i = 0; i < SIZE - 1; ++i)
371	+	ints[i] = i;
372	+	Collection<Integer> elements = Arrays.asList(ints);
373		try {
374	<	Integer[] ints = new Integer[SIZE];
347	<	for (int i = 0; i < SIZE-1; ++i)
348	<	ints[i] = new Integer(i);
349	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
374	>	new LinkedBlockingDeque(elements);
375		shouldThrow();
376		} catch (NullPointerException success) {}
377		}
#	Line 357 | Line 382 | public class LinkedBlockingDequeTest ext
382		public void testConstructor6() {
383		Integer[] ints = new Integer[SIZE];
384		for (int i = 0; i < SIZE; ++i)
385	<	ints[i] = new Integer(i);
385	>	ints[i] = i;
386		LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
387		for (int i = 0; i < SIZE; ++i)
388		assertEquals(ints[i], q.poll());
#	Line 382 | Line 407 | public class LinkedBlockingDequeTest ext
407		* remainingCapacity decreases on add, increases on remove
408		*/
409		public void testRemainingCapacity() {
410	<	LinkedBlockingDeque q = populatedDeque(SIZE);
410	>	BlockingQueue q = populatedDeque(SIZE);
411		for (int i = 0; i < SIZE; ++i) {
412		assertEquals(i, q.remainingCapacity());
413	<	assertEquals(SIZE-i, q.size());
414	<	q.remove();
413	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
414	>	assertEquals(i, q.remove());
415		}
416		for (int i = 0; i < SIZE; ++i) {
417	<	assertEquals(SIZE-i, q.remainingCapacity());
418	<	assertEquals(i, q.size());
419	<	q.add(new Integer(i));
417	>	assertEquals(SIZE - i, q.remainingCapacity());
418	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
419	>	assertTrue(q.add(i));
420		}
421		}
422
423		/**
399	–	* offer(null) throws NPE
400	–	*/
401	–	public void testOfferNull() {
402	–	try {
403	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
404	–	q.offer(null);
405	–	shouldThrow();
406	–	} catch (NullPointerException success) {}
407	–	}
408	–
409	–	/**
410	–	* add(null) throws NPE
411	–	*/
412	–	public void testAddNull() {
413	–	try {
414	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
415	–	q.add(null);
416	–	shouldThrow();
417	–	} catch (NullPointerException success) {}
418	–	}
419	–
420	–	/**
424		* push(null) throws NPE
425		*/
426		public void testPushNull() {
427	+	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
428		try {
425	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
429		q.push(null);
430		shouldThrow();
431		} catch (NullPointerException success) {}
#	Line 432 | Line 435 | public class LinkedBlockingDequeTest ext
435		* push succeeds if not full; throws ISE if full
436		*/
437		public void testPush() {
438	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
439	+	for (int i = 0; i < SIZE; ++i) {
440	+	Integer x = new Integer(i);
441	+	q.push(x);
442	+	assertEquals(x, q.peek());
443	+	}
444	+	assertEquals(0, q.remainingCapacity());
445		try {
436	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
437	–	for (int i = 0; i < SIZE; ++i) {
438	–	Integer I = new Integer(i);
439	–	q.push(I);
440	–	assertEquals(I, q.peek());
441	–	}
442	–	assertEquals(0, q.remainingCapacity());
446		q.push(new Integer(SIZE));
447		shouldThrow();
448		} catch (IllegalStateException success) {}
#	Line 455 | Line 458 | public class LinkedBlockingDequeTest ext
458		assertSame(four, q.peekFirst());
459		}
460
458	–
461		/**
462		* pop removes next element, or throws NSEE if empty
463		*/
#	Line 470 | Line 472 | public class LinkedBlockingDequeTest ext
472		} catch (NoSuchElementException success) {}
473		}
474
473	–
475		/**
476		* Offer succeeds if not full; fails if full
477		*/
#	Line 484 | Line 485 | public class LinkedBlockingDequeTest ext
485		* add succeeds if not full; throws ISE if full
486		*/
487		public void testAdd() {
488	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
489	+	for (int i = 0; i < SIZE; ++i)
490	+	assertTrue(q.add(new Integer(i)));
491	+	assertEquals(0, q.remainingCapacity());
492		try {
488	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
489	–	for (int i = 0; i < SIZE; ++i) {
490	–	assertTrue(q.add(new Integer(i)));
491	–	}
492	–	assertEquals(0, q.remainingCapacity());
493		q.add(new Integer(SIZE));
494		shouldThrow();
495		} catch (IllegalStateException success) {}
496		}
497
498		/**
499	–	* addAll(null) throws NPE
500	–	*/
501	–	public void testAddAll1() {
502	–	try {
503	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
504	–	q.addAll(null);
505	–	shouldThrow();
506	–	} catch (NullPointerException success) {}
507	–	}
508	–
509	–	/**
499		* addAll(this) throws IAE
500		*/
501		public void testAddAllSelf() {
502	+	LinkedBlockingDeque q = populatedDeque(SIZE);
503		try {
514	–	LinkedBlockingDeque q = populatedDeque(SIZE);
504		q.addAll(q);
505		shouldThrow();
506		} catch (IllegalArgumentException success) {}
507		}
508
509		/**
521	–	* addAll of a collection with null elements throws NPE
522	–	*/
523	–	public void testAddAll2() {
524	–	try {
525	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
526	–	Integer[] ints = new Integer[SIZE];
527	–	q.addAll(Arrays.asList(ints));
528	–	shouldThrow();
529	–	} catch (NullPointerException success) {}
530	–	}
531	–
532	–	/**
510		* addAll of a collection with any null elements throws NPE after
511		* possibly adding some elements
512		*/
513		public void testAddAll3() {
514	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
515	+	Integer[] ints = new Integer[SIZE];
516	+	for (int i = 0; i < SIZE - 1; ++i)
517	+	ints[i] = new Integer(i);
518	+	Collection<Integer> elements = Arrays.asList(ints);
519		try {
520	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
539	<	Integer[] ints = new Integer[SIZE];
540	<	for (int i = 0; i < SIZE-1; ++i)
541	<	ints[i] = new Integer(i);
542	<	q.addAll(Arrays.asList(ints));
520	>	q.addAll(elements);
521		shouldThrow();
522		} catch (NullPointerException success) {}
523		}
524
525		/**
526	<	* addAll throws ISE if not enough room
526	>	* addAll throws IllegalStateException if not enough room
527		*/
528		public void testAddAll4() {
529	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE - 1);
530	+	Integer[] ints = new Integer[SIZE];
531	+	for (int i = 0; i < SIZE; ++i)
532	+	ints[i] = new Integer(i);
533	+	Collection<Integer> elements = Arrays.asList(ints);
534		try {
535	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
553	<	Integer[] ints = new Integer[SIZE];
554	<	for (int i = 0; i < SIZE; ++i)
555	<	ints[i] = new Integer(i);
556	<	q.addAll(Arrays.asList(ints));
535	>	q.addAll(elements);
536		shouldThrow();
537		} catch (IllegalStateException success) {}
538		}
#	Line 573 | Line 552 | public class LinkedBlockingDequeTest ext
552		assertEquals(ints[i], q.poll());
553		}
554
576	–
577	–	/**
578	–	* put(null) throws NPE
579	–	*/
580	–	public void testPutNull() throws InterruptedException {
581	–	try {
582	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
583	–	q.put(null);
584	–	shouldThrow();
585	–	} catch (NullPointerException success) {}
586	–	}
587	–
555		/**
556		* all elements successfully put are contained
557		*/
558		public void testPut() throws InterruptedException {
559		LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
560		for (int i = 0; i < SIZE; ++i) {
561	<	Integer I = new Integer(i);
562	<	q.put(I);
563	<	assertTrue(q.contains(I));
561	>	Integer x = new Integer(i);
562	>	q.put(x);
563	>	assertTrue(q.contains(x));
564		}
565		assertEquals(0, q.remainingCapacity());
566		}
#	Line 603 | Line 570 | public class LinkedBlockingDequeTest ext
570		*/
571		public void testBlockingPut() throws InterruptedException {
572		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
573	<	Thread t = new Thread(new CheckedRunnable() {
573	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
574	>	Thread t = newStartedThread(new CheckedRunnable() {
575		public void realRun() throws InterruptedException {
576		for (int i = 0; i < SIZE; ++i)
577		q.put(i);
578		assertEquals(SIZE, q.size());
579		assertEquals(0, q.remainingCapacity());
580	+
581	+	Thread.currentThread().interrupt();
582	+	try {
583	+	q.put(99);
584	+	shouldThrow();
585	+	} catch (InterruptedException success) {}
586	+	assertFalse(Thread.interrupted());
587	+
588	+	pleaseInterrupt.countDown();
589		try {
590		q.put(99);
591		shouldThrow();
592		} catch (InterruptedException success) {}
593	+	assertFalse(Thread.interrupted());
594		}});
595
596	<	t.start();
597	<	Thread.sleep(SHORT_DELAY_MS);
596	>	await(pleaseInterrupt);
597	>	assertThreadStaysAlive(t);
598		t.interrupt();
599	<	t.join();
599	>	awaitTermination(t);
600		assertEquals(SIZE, q.size());
601		assertEquals(0, q.remainingCapacity());
602		}
603
604		/**
605	<	* put blocks waiting for take when full
605	>	* put blocks interruptibly waiting for take when full
606		*/
607		public void testPutWithTake() throws InterruptedException {
608		final int capacity = 2;
609		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
610	<	Thread t = new Thread(new CheckedRunnable() {
610	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
611	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
612	>	Thread t = newStartedThread(new CheckedRunnable() {
613		public void realRun() throws InterruptedException {
614	<	for (int i = 0; i < capacity + 1; i++)
614	>	for (int i = 0; i < capacity; i++)
615		q.put(i);
616	+	pleaseTake.countDown();
617	+	q.put(86);
618	+
619	+	pleaseInterrupt.countDown();
620		try {
621		q.put(99);
622		shouldThrow();
623		} catch (InterruptedException success) {}
624	+	assertFalse(Thread.interrupted());
625		}});
626
627	<	t.start();
628	<	Thread.sleep(SHORT_DELAY_MS);
644	<	assertEquals(q.remainingCapacity(), 0);
627	>	await(pleaseTake);
628	>	assertEquals(0, q.remainingCapacity());
629		assertEquals(0, q.take());
630	<	Thread.sleep(SHORT_DELAY_MS);
630	>
631	>	await(pleaseInterrupt);
632	>	assertThreadStaysAlive(t);
633		t.interrupt();
634	<	t.join();
635	<	assertEquals(q.remainingCapacity(), 0);
634	>	awaitTermination(t);
635	>	assertEquals(0, q.remainingCapacity());
636		}
637
638		/**
#	Line 654 | Line 640 | public class LinkedBlockingDequeTest ext
640		*/
641		public void testTimedOffer() throws InterruptedException {
642		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
643	<	Thread t = new Thread(new CheckedRunnable() {
643	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
644	>	Thread t = newStartedThread(new CheckedRunnable() {
645		public void realRun() throws InterruptedException {
646		q.put(new Object());
647		q.put(new Object());
648	<	assertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
648	>	long startTime = System.nanoTime();
649	>	assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS));
650	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
651	>	pleaseInterrupt.countDown();
652		try {
653	<	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
653	>	q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
654		shouldThrow();
655		} catch (InterruptedException success) {}
656		}});
657
658	<	t.start();
659	<	Thread.sleep(SMALL_DELAY_MS);
658	>	await(pleaseInterrupt);
659	>	assertThreadStaysAlive(t);
660		t.interrupt();
661	<	t.join();
661	>	awaitTermination(t);
662		}
663
664		/**
#	Line 682 | Line 672 | public class LinkedBlockingDequeTest ext
672		}
673
674		/**
675	<	* take blocks interruptibly when empty
686	<	*/
687	<	public void testTakeFromEmpty() throws InterruptedException {
688	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
689	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
690	<	public void realRun() throws InterruptedException {
691	<	q.take();
692	<	}};
693	<
694	<	t.start();
695	<	Thread.sleep(SHORT_DELAY_MS);
696	<	t.interrupt();
697	<	t.join();
698	<	}
699	<
700	<	/**
701	<	* Take removes existing elements until empty, then blocks interruptibly
675	>	* take removes existing elements until empty, then blocks interruptibly
676		*/
677		public void testBlockingTake() throws InterruptedException {
678		final LinkedBlockingDeque q = populatedDeque(SIZE);
679	<	Thread t = new Thread(new CheckedRunnable() {
679	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
680	>	Thread t = newStartedThread(new CheckedRunnable() {
681		public void realRun() throws InterruptedException {
682		for (int i = 0; i < SIZE; ++i) {
683		assertEquals(i, q.take());
684		}
685	+
686	+	Thread.currentThread().interrupt();
687		try {
688		q.take();
689		shouldThrow();
690		} catch (InterruptedException success) {}
691	+	assertFalse(Thread.interrupted());
692	+
693	+	pleaseInterrupt.countDown();
694	+	try {
695	+	q.take();
696	+	shouldThrow();
697	+	} catch (InterruptedException success) {}
698	+	assertFalse(Thread.interrupted());
699		}});
700
701	<	t.start();
702	<	Thread.sleep(SHORT_DELAY_MS);
701	>	await(pleaseInterrupt);
702	>	assertThreadStaysAlive(t);
703		t.interrupt();
704	<	t.join();
704	>	awaitTermination(t);
705		}
706
722	–
707		/**
708		* poll succeeds unless empty
709		*/
#	Line 748 | Line 732 | public class LinkedBlockingDequeTest ext
732		public void testTimedPoll() throws InterruptedException {
733		LinkedBlockingDeque q = populatedDeque(SIZE);
734		for (int i = 0; i < SIZE; ++i) {
735	<	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
736	<	}
737	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
735	>	long startTime = System.nanoTime();
736	>	assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
737	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
738	>	}
739	>	long startTime = System.nanoTime();
740	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
741	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
742	>	checkEmpty(q);
743		}
744
745		/**
#	Line 758 | Line 747 | public class LinkedBlockingDequeTest ext
747		* returning timeout status
748		*/
749		public void testInterruptedTimedPoll() throws InterruptedException {
750	<	Thread t = new Thread(new CheckedRunnable() {
750	>	final BlockingQueue<Integer> q = populatedDeque(SIZE);
751	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
752	>	Thread t = newStartedThread(new CheckedRunnable() {
753		public void realRun() throws InterruptedException {
754	<	LinkedBlockingDeque q = populatedDeque(SIZE);
754	>	long startTime = System.nanoTime();
755		for (int i = 0; i < SIZE; ++i) {
756	<	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
756	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
757		}
758	+	aboutToWait.countDown();
759		try {
760	<	q.poll(SMALL_DELAY_MS, MILLISECONDS);
760	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
761		shouldThrow();
762	<	} catch (InterruptedException success) {}
762	>	} catch (InterruptedException success) {
763	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
764	>	}
765		}});
766
767	<	t.start();
768	<	Thread.sleep(SHORT_DELAY_MS);
767	>	aboutToWait.await();
768	>	waitForThreadToEnterWaitState(t, LONG_DELAY_MS);
769		t.interrupt();
770	<	t.join();
770	>	awaitTermination(t);
771	>	checkEmpty(q);
772		}
773
774		/**
775		* putFirst(null) throws NPE
776		*/
777	<	public void testPutFirstNull() throws InterruptedException {
777	>	public void testPutFirstNull() throws InterruptedException {
778	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
779		try {
784	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
780		q.putFirst(null);
781		shouldThrow();
782		} catch (NullPointerException success) {}
783	<	}
783	>	}
784
785		/**
786		* all elements successfully putFirst are contained
787		*/
788	<	public void testPutFirst() throws InterruptedException {
789	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
790	<	for (int i = 0; i < SIZE; ++i) {
791	<	Integer I = new Integer(i);
792	<	q.putFirst(I);
793	<	assertTrue(q.contains(I));
794	<	}
795	<	assertEquals(0, q.remainingCapacity());
788	>	public void testPutFirst() throws InterruptedException {
789	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
790	>	for (int i = 0; i < SIZE; ++i) {
791	>	Integer x = new Integer(i);
792	>	q.putFirst(x);
793	>	assertTrue(q.contains(x));
794	>	}
795	>	assertEquals(0, q.remainingCapacity());
796		}
797
798		/**
#	Line 805 | Line 800 | public class LinkedBlockingDequeTest ext
800		*/
801		public void testBlockingPutFirst() throws InterruptedException {
802		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
803	<	Thread t = new Thread(new CheckedRunnable() {
803	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
804	>	Thread t = newStartedThread(new CheckedRunnable() {
805		public void realRun() throws InterruptedException {
806		for (int i = 0; i < SIZE; ++i)
807		q.putFirst(i);
808		assertEquals(SIZE, q.size());
809		assertEquals(0, q.remainingCapacity());
810	+
811	+	Thread.currentThread().interrupt();
812	+	try {
813	+	q.putFirst(99);
814	+	shouldThrow();
815	+	} catch (InterruptedException success) {}
816	+	assertFalse(Thread.interrupted());
817	+
818	+	pleaseInterrupt.countDown();
819		try {
820		q.putFirst(99);
821		shouldThrow();
822		} catch (InterruptedException success) {}
823	+	assertFalse(Thread.interrupted());
824		}});
825
826	<	t.start();
827	<	Thread.sleep(SHORT_DELAY_MS);
826	>	await(pleaseInterrupt);
827	>	assertThreadStaysAlive(t);
828		t.interrupt();
829	<	t.join();
829	>	awaitTermination(t);
830		assertEquals(SIZE, q.size());
831		assertEquals(0, q.remainingCapacity());
832		}
833
834		/**
835	<	* putFirst blocks waiting for take when full
835	>	* putFirst blocks interruptibly waiting for take when full
836		*/
837		public void testPutFirstWithTake() throws InterruptedException {
838		final int capacity = 2;
839		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
840	<	Thread t = new Thread(new CheckedRunnable() {
840	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
841	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
842	>	Thread t = newStartedThread(new CheckedRunnable() {
843		public void realRun() throws InterruptedException {
844	<	for (int i = 0; i < capacity + 1; i++)
844	>	for (int i = 0; i < capacity; i++)
845		q.putFirst(i);
846	+	pleaseTake.countDown();
847	+	q.putFirst(86);
848	+
849	+	pleaseInterrupt.countDown();
850		try {
851		q.putFirst(99);
852		shouldThrow();
853		} catch (InterruptedException success) {}
854	+	assertFalse(Thread.interrupted());
855		}});
856
857	<	t.start();
858	<	Thread.sleep(SHORT_DELAY_MS);
846	<	assertEquals(q.remainingCapacity(), 0);
857	>	await(pleaseTake);
858	>	assertEquals(0, q.remainingCapacity());
859		assertEquals(capacity - 1, q.take());
860	<	Thread.sleep(SHORT_DELAY_MS);
860	>
861	>	await(pleaseInterrupt);
862	>	assertThreadStaysAlive(t);
863		t.interrupt();
864	<	t.join();
865	<	assertEquals(q.remainingCapacity(), 0);
864	>	awaitTermination(t);
865	>	assertEquals(0, q.remainingCapacity());
866		}
867
868		/**
#	Line 856 | Line 870 | public class LinkedBlockingDequeTest ext
870		*/
871		public void testTimedOfferFirst() throws InterruptedException {
872		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
873	<	Thread t = new Thread(new CheckedRunnable() {
873	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
874	>	Thread t = newStartedThread(new CheckedRunnable() {
875		public void realRun() throws InterruptedException {
876		q.putFirst(new Object());
877		q.putFirst(new Object());
878	<	assertFalse(q.offerFirst(new Object(), SHORT_DELAY_MS, MILLISECONDS));
878	>	long startTime = System.nanoTime();
879	>	assertFalse(q.offerFirst(new Object(), timeoutMillis(), MILLISECONDS));
880	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
881	>	pleaseInterrupt.countDown();
882		try {
883	<	q.offerFirst(new Object(), LONG_DELAY_MS, MILLISECONDS);
883	>	q.offerFirst(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
884		shouldThrow();
885		} catch (InterruptedException success) {}
886		}});
887
888	<	t.start();
889	<	Thread.sleep(SMALL_DELAY_MS);
888	>	await(pleaseInterrupt);
889	>	assertThreadStaysAlive(t);
890		t.interrupt();
891	<	t.join();
891	>	awaitTermination(t);
892		}
893
894		/**
#	Line 884 | Line 902 | public class LinkedBlockingDequeTest ext
902		}
903
904		/**
905	<	* takeFirst blocks interruptibly when empty
905	>	* takeFirst() blocks interruptibly when empty
906		*/
907	<	public void testTakeFirstFromEmpty() throws InterruptedException {
908	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
909	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
910	<	public void realRun() throws InterruptedException {
911	<	q.takeFirst();
912	<	}};
907	>	public void testTakeFirstFromEmptyBlocksInterruptibly() {
908	>	final BlockingDeque q = new LinkedBlockingDeque();
909	>	final CountDownLatch threadStarted = new CountDownLatch(1);
910	>	Thread t = newStartedThread(new CheckedRunnable() {
911	>	public void realRun() {
912	>	threadStarted.countDown();
913	>	try {
914	>	q.takeFirst();
915	>	shouldThrow();
916	>	} catch (InterruptedException success) {}
917	>	assertFalse(Thread.interrupted());
918	>	}});
919
920	<	t.start();
921	<	Thread.sleep(SHORT_DELAY_MS);
920	>	await(threadStarted);
921	>	assertThreadStaysAlive(t);
922		t.interrupt();
923	<	t.join();
923	>	awaitTermination(t);
924	>	}
925	>
926	>	/**
927	>	* takeFirst() throws InterruptedException immediately if interrupted
928	>	* before waiting
929	>	*/
930	>	public void testTakeFirstFromEmptyAfterInterrupt() {
931	>	final BlockingDeque q = new LinkedBlockingDeque();
932	>	Thread t = newStartedThread(new CheckedRunnable() {
933	>	public void realRun() {
934	>	Thread.currentThread().interrupt();
935	>	try {
936	>	q.takeFirst();
937	>	shouldThrow();
938	>	} catch (InterruptedException success) {}
939	>	assertFalse(Thread.interrupted());
940	>	}});
941	>
942	>	awaitTermination(t);
943	>	}
944	>
945	>	/**
946	>	* takeLast() blocks interruptibly when empty
947	>	*/
948	>	public void testTakeLastFromEmptyBlocksInterruptibly() {
949	>	final BlockingDeque q = new LinkedBlockingDeque();
950	>	final CountDownLatch threadStarted = new CountDownLatch(1);
951	>	Thread t = newStartedThread(new CheckedRunnable() {
952	>	public void realRun() {
953	>	threadStarted.countDown();
954	>	try {
955	>	q.takeLast();
956	>	shouldThrow();
957	>	} catch (InterruptedException success) {}
958	>	assertFalse(Thread.interrupted());
959	>	}});
960	>
961	>	await(threadStarted);
962	>	assertThreadStaysAlive(t);
963	>	t.interrupt();
964	>	awaitTermination(t);
965	>	}
966	>
967	>	/**
968	>	* takeLast() throws InterruptedException immediately if interrupted
969	>	* before waiting
970	>	*/
971	>	public void testTakeLastFromEmptyAfterInterrupt() {
972	>	final BlockingDeque q = new LinkedBlockingDeque();
973	>	Thread t = newStartedThread(new CheckedRunnable() {
974	>	public void realRun() {
975	>	Thread.currentThread().interrupt();
976	>	try {
977	>	q.takeLast();
978	>	shouldThrow();
979	>	} catch (InterruptedException success) {}
980	>	assertFalse(Thread.interrupted());
981	>	}});
982	>
983	>	awaitTermination(t);
984		}
985
986		/**
987	<	* TakeFirst removes existing elements until empty, then blocks interruptibly
987	>	* takeFirst removes existing elements until empty, then blocks interruptibly
988		*/
989		public void testBlockingTakeFirst() throws InterruptedException {
990		final LinkedBlockingDeque q = populatedDeque(SIZE);
991	<	Thread t = new Thread(new CheckedRunnable() {
991	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
992	>	Thread t = newStartedThread(new CheckedRunnable() {
993		public void realRun() throws InterruptedException {
994	<	for (int i = 0; i < SIZE; ++i)
994	>	for (int i = 0; i < SIZE; ++i) {
995		assertEquals(i, q.takeFirst());
996	+	}
997	+
998	+	Thread.currentThread().interrupt();
999		try {
1000		q.takeFirst();
1001		shouldThrow();
1002		} catch (InterruptedException success) {}
1003	+	assertFalse(Thread.interrupted());
1004	+
1005	+	pleaseInterrupt.countDown();
1006	+	try {
1007	+	q.takeFirst();
1008	+	shouldThrow();
1009	+	} catch (InterruptedException success) {}
1010	+	assertFalse(Thread.interrupted());
1011		}});
1012
1013	<	t.start();
1014	<	Thread.sleep(SHORT_DELAY_MS);
1013	>	await(pleaseInterrupt);
1014	>	assertThreadStaysAlive(t);
1015		t.interrupt();
1016	<	t.join();
1016	>	awaitTermination(t);
1017		}
1018
923	–
1019		/**
1020		* timed pollFirst with zero timeout succeeds when non-empty, else times out
1021		*/
#	Line 938 | Line 1033 | public class LinkedBlockingDequeTest ext
1033		public void testTimedPollFirst() throws InterruptedException {
1034		LinkedBlockingDeque q = populatedDeque(SIZE);
1035		for (int i = 0; i < SIZE; ++i) {
1036	<	assertEquals(i, q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1037	<	}
1038	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1036	>	long startTime = System.nanoTime();
1037	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1038	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1039	>	}
1040	>	long startTime = System.nanoTime();
1041	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1042	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1043	>	checkEmpty(q);
1044		}
1045
1046		/**
#	Line 948 | Line 1048 | public class LinkedBlockingDequeTest ext
1048		* returning timeout status
1049		*/
1050		public void testInterruptedTimedPollFirst() throws InterruptedException {
1051	<	Thread t = new Thread(new CheckedRunnable() {
1051	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1052	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1053	>	Thread t = newStartedThread(new CheckedRunnable() {
1054		public void realRun() throws InterruptedException {
1055	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1055	>	long startTime = System.nanoTime();
1056		for (int i = 0; i < SIZE; ++i) {
1057	<	assertEquals(i, q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1057	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1058		}
1059	+
1060	+	Thread.currentThread().interrupt();
1061		try {
1062	<	q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
1062	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1063		shouldThrow();
1064		} catch (InterruptedException success) {}
1065	+	assertFalse(Thread.interrupted());
1066	+
1067	+	pleaseInterrupt.countDown();
1068	+	try {
1069	+	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1070	+	shouldThrow();
1071	+	} catch (InterruptedException success) {}
1072	+	assertFalse(Thread.interrupted());
1073	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1074		}});
1075
1076	<	t.start();
1077	<	Thread.sleep(SHORT_DELAY_MS);
1076	>	await(pleaseInterrupt);
1077	>	assertThreadStaysAlive(t);
1078		t.interrupt();
1079	<	t.join();
1079	>	awaitTermination(t);
1080		}
1081
1082		/**
#	Line 972 | Line 1085 | public class LinkedBlockingDequeTest ext
1085		*/
1086		public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1087		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1088	<	Thread t = new Thread(new CheckedRunnable() {
1088	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1089	>	Thread t = newStartedThread(new CheckedRunnable() {
1090		public void realRun() throws InterruptedException {
1091	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1091	>	long startTime = System.nanoTime();
1092	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1093	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1094	>
1095	>	barrier.await();
1096	>
1097		assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1098	+
1099	+	Thread.currentThread().interrupt();
1100		try {
1101		q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1102		shouldThrow();
1103		} catch (InterruptedException success) {}
1104	+
1105	+	barrier.await();
1106	+	try {
1107	+	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1108	+	shouldThrow();
1109	+	} catch (InterruptedException success) {}
1110	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1111		}});
1112
1113	<	t.start();
1114	<	Thread.sleep(SMALL_DELAY_MS);
1115	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, MILLISECONDS));
1113	>	barrier.await();
1114	>	long startTime = System.nanoTime();
1115	>	assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1116	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1117	>	barrier.await();
1118	>	assertThreadStaysAlive(t);
1119		t.interrupt();
1120	<	t.join();
1120	>	awaitTermination(t);
1121		}
1122
1123		/**
1124		* putLast(null) throws NPE
1125		*/
1126	<	public void testPutLastNull() throws InterruptedException {
1126	>	public void testPutLastNull() throws InterruptedException {
1127	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1128		try {
997	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1129		q.putLast(null);
1130		shouldThrow();
1131		} catch (NullPointerException success) {}
1132	<	}
1132	>	}
1133
1134		/**
1135		* all elements successfully putLast are contained
1136		*/
1137	<	public void testPutLast() throws InterruptedException {
1138	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1139	<	for (int i = 0; i < SIZE; ++i) {
1140	<	Integer I = new Integer(i);
1141	<	q.putLast(I);
1142	<	assertTrue(q.contains(I));
1143	<	}
1144	<	assertEquals(0, q.remainingCapacity());
1137	>	public void testPutLast() throws InterruptedException {
1138	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1139	>	for (int i = 0; i < SIZE; ++i) {
1140	>	Integer x = new Integer(i);
1141	>	q.putLast(x);
1142	>	assertTrue(q.contains(x));
1143	>	}
1144	>	assertEquals(0, q.remainingCapacity());
1145		}
1146
1147		/**
#	Line 1018 | Line 1149 | public class LinkedBlockingDequeTest ext
1149		*/
1150		public void testBlockingPutLast() throws InterruptedException {
1151		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1152	<	Thread t = new Thread(new CheckedRunnable() {
1152	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1153	>	Thread t = newStartedThread(new CheckedRunnable() {
1154		public void realRun() throws InterruptedException {
1155		for (int i = 0; i < SIZE; ++i)
1156		q.putLast(i);
1157		assertEquals(SIZE, q.size());
1158		assertEquals(0, q.remainingCapacity());
1159	+
1160	+	Thread.currentThread().interrupt();
1161	+	try {
1162	+	q.putLast(99);
1163	+	shouldThrow();
1164	+	} catch (InterruptedException success) {}
1165	+	assertFalse(Thread.interrupted());
1166	+
1167	+	pleaseInterrupt.countDown();
1168		try {
1169		q.putLast(99);
1170		shouldThrow();
1171		} catch (InterruptedException success) {}
1172	+	assertFalse(Thread.interrupted());
1173		}});
1174
1175	<	t.start();
1176	<	Thread.sleep(SHORT_DELAY_MS);
1175	>	await(pleaseInterrupt);
1176	>	assertThreadStaysAlive(t);
1177		t.interrupt();
1178	<	t.join();
1178	>	awaitTermination(t);
1179		assertEquals(SIZE, q.size());
1180		assertEquals(0, q.remainingCapacity());
1181		}
1182
1183		/**
1184	<	* putLast blocks waiting for take when full
1184	>	* putLast blocks interruptibly waiting for take when full
1185		*/
1186		public void testPutLastWithTake() throws InterruptedException {
1187		final int capacity = 2;
1188		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
1189	<	Thread t = new Thread(new CheckedRunnable() {
1189	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
1190	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1191	>	Thread t = newStartedThread(new CheckedRunnable() {
1192		public void realRun() throws InterruptedException {
1193	<	for (int i = 0; i < capacity + 1; i++)
1193	>	for (int i = 0; i < capacity; i++)
1194		q.putLast(i);
1195	+	pleaseTake.countDown();
1196	+	q.putLast(86);
1197	+
1198	+	pleaseInterrupt.countDown();
1199		try {
1200		q.putLast(99);
1201		shouldThrow();
1202		} catch (InterruptedException success) {}
1203	+	assertFalse(Thread.interrupted());
1204		}});
1205
1206	<	t.start();
1207	<	Thread.sleep(SHORT_DELAY_MS);
1059	<	assertEquals(q.remainingCapacity(), 0);
1206	>	await(pleaseTake);
1207	>	assertEquals(0, q.remainingCapacity());
1208		assertEquals(0, q.take());
1209	<	Thread.sleep(SHORT_DELAY_MS);
1209	>
1210	>	await(pleaseInterrupt);
1211	>	assertThreadStaysAlive(t);
1212		t.interrupt();
1213	<	t.join();
1214	<	assertEquals(q.remainingCapacity(), 0);
1213	>	awaitTermination(t);
1214	>	assertEquals(0, q.remainingCapacity());
1215		}
1216
1217		/**
#	Line 1069 | Line 1219 | public class LinkedBlockingDequeTest ext
1219		*/
1220		public void testTimedOfferLast() throws InterruptedException {
1221		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1222	<	Thread t = new Thread(new CheckedRunnable() {
1222	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1223	>	Thread t = newStartedThread(new CheckedRunnable() {
1224		public void realRun() throws InterruptedException {
1225		q.putLast(new Object());
1226		q.putLast(new Object());
1227	<	assertFalse(q.offerLast(new Object(), SHORT_DELAY_MS, MILLISECONDS));
1227	>	long startTime = System.nanoTime();
1228	>	assertFalse(q.offerLast(new Object(), timeoutMillis(), MILLISECONDS));
1229	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1230	>	pleaseInterrupt.countDown();
1231		try {
1232	<	q.offerLast(new Object(), LONG_DELAY_MS, MILLISECONDS);
1232	>	q.offerLast(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
1233		shouldThrow();
1234		} catch (InterruptedException success) {}
1235		}});
1236
1237	<	t.start();
1238	<	Thread.sleep(SMALL_DELAY_MS);
1237	>	await(pleaseInterrupt);
1238	>	assertThreadStaysAlive(t);
1239		t.interrupt();
1240	<	t.join();
1240	>	awaitTermination(t);
1241		}
1242
1243		/**
#	Line 1092 | Line 1246 | public class LinkedBlockingDequeTest ext
1246		public void testTakeLast() throws InterruptedException {
1247		LinkedBlockingDeque q = populatedDeque(SIZE);
1248		for (int i = 0; i < SIZE; ++i) {
1249	<	assertEquals(SIZE-i-1, q.takeLast());
1249	>	assertEquals(SIZE - i - 1, q.takeLast());
1250		}
1251		}
1252
1253		/**
1254	<	* takeLast blocks interruptibly when empty
1101	<	*/
1102	<	public void testTakeLastFromEmpty() throws InterruptedException {
1103	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1104	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1105	<	public void realRun() throws InterruptedException {
1106	<	q.takeLast();
1107	<	}};
1108	<
1109	<	t.start();
1110	<	Thread.sleep(SHORT_DELAY_MS);
1111	<	t.interrupt();
1112	<	t.join();
1113	<	}
1114	<
1115	<	/**
1116	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1254	>	* takeLast removes existing elements until empty, then blocks interruptibly
1255		*/
1256		public void testBlockingTakeLast() throws InterruptedException {
1257		final LinkedBlockingDeque q = populatedDeque(SIZE);
1258	<	Thread t = new Thread(new CheckedRunnable() {
1258	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1259	>	Thread t = newStartedThread(new CheckedRunnable() {
1260		public void realRun() throws InterruptedException {
1261	<	for (int i = 0; i < SIZE; ++i)
1262	<	assertEquals(SIZE - 1 - i, q.takeLast());
1261	>	for (int i = 0; i < SIZE; ++i) {
1262	>	assertEquals(SIZE - i - 1, q.takeLast());
1263	>	}
1264	>
1265	>	Thread.currentThread().interrupt();
1266	>	try {
1267	>	q.takeLast();
1268	>	shouldThrow();
1269	>	} catch (InterruptedException success) {}
1270	>	assertFalse(Thread.interrupted());
1271	>
1272	>	pleaseInterrupt.countDown();
1273		try {
1274		q.takeLast();
1275		shouldThrow();
1276		} catch (InterruptedException success) {}
1277	+	assertFalse(Thread.interrupted());
1278		}});
1279
1280	<	t.start();
1281	<	Thread.sleep(SHORT_DELAY_MS);
1280	>	await(pleaseInterrupt);
1281	>	assertThreadStaysAlive(t);
1282		t.interrupt();
1283	<	t.join();
1283	>	awaitTermination(t);
1284		}
1285
1286		/**
#	Line 1139 | Line 1289 | public class LinkedBlockingDequeTest ext
1289		public void testTimedPollLast0() throws InterruptedException {
1290		LinkedBlockingDeque q = populatedDeque(SIZE);
1291		for (int i = 0; i < SIZE; ++i) {
1292	<	assertEquals(SIZE-i-1, q.pollLast(0, MILLISECONDS));
1292	>	assertEquals(SIZE - i - 1, q.pollLast(0, MILLISECONDS));
1293		}
1294		assertNull(q.pollLast(0, MILLISECONDS));
1295		}
#	Line 1150 | Line 1300 | public class LinkedBlockingDequeTest ext
1300		public void testTimedPollLast() throws InterruptedException {
1301		LinkedBlockingDeque q = populatedDeque(SIZE);
1302		for (int i = 0; i < SIZE; ++i) {
1303	<	assertEquals(SIZE-i-1, q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1304	<	}
1305	<	assertNull(q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1303	>	long startTime = System.nanoTime();
1304	>	assertEquals(SIZE - i - 1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1305	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1306	>	}
1307	>	long startTime = System.nanoTime();
1308	>	assertNull(q.pollLast(timeoutMillis(), MILLISECONDS));
1309	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1310	>	checkEmpty(q);
1311		}
1312
1313		/**
#	Line 1160 | Line 1315 | public class LinkedBlockingDequeTest ext
1315		* returning timeout status
1316		*/
1317		public void testInterruptedTimedPollLast() throws InterruptedException {
1318	<	Thread t = new Thread(new CheckedRunnable() {
1318	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1319	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1320	>	Thread t = newStartedThread(new CheckedRunnable() {
1321		public void realRun() throws InterruptedException {
1322	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1322	>	long startTime = System.nanoTime();
1323		for (int i = 0; i < SIZE; ++i) {
1324	<	assertEquals(SIZE-i-1, q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1324	>	assertEquals(SIZE - i - 1,
1325	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1326		}
1327	+
1328	+	Thread.currentThread().interrupt();
1329	+	try {
1330	+	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1331	+	shouldThrow();
1332	+	} catch (InterruptedException success) {}
1333	+	assertFalse(Thread.interrupted());
1334	+
1335	+	pleaseInterrupt.countDown();
1336		try {
1337	<	q.pollLast(SMALL_DELAY_MS, MILLISECONDS);
1337	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1338		shouldThrow();
1339		} catch (InterruptedException success) {}
1340	+	assertFalse(Thread.interrupted());
1341	+
1342	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1343		}});
1344
1345	<	t.start();
1346	<	Thread.sleep(SHORT_DELAY_MS);
1345	>	await(pleaseInterrupt);
1346	>	assertThreadStaysAlive(t);
1347		t.interrupt();
1348	<	t.join();
1348	>	awaitTermination(t);
1349	>	checkEmpty(q);
1350		}
1351
1352		/**
#	Line 1184 | Line 1355 | public class LinkedBlockingDequeTest ext
1355		*/
1356		public void testTimedPollWithOfferLast() throws InterruptedException {
1357		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1358	<	Thread t = new Thread(new CheckedRunnable() {
1358	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1359	>	Thread t = newStartedThread(new CheckedRunnable() {
1360		public void realRun() throws InterruptedException {
1361	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
1361	>	long startTime = System.nanoTime();
1362	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1363	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1364	>
1365	>	barrier.await();
1366	>
1367		assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1368	+
1369	+	Thread.currentThread().interrupt();
1370		try {
1371		q.poll(LONG_DELAY_MS, MILLISECONDS);
1372		shouldThrow();
1373		} catch (InterruptedException success) {}
1374	+	assertFalse(Thread.interrupted());
1375	+
1376	+	barrier.await();
1377	+	try {
1378	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1379	+	shouldThrow();
1380	+	} catch (InterruptedException success) {}
1381	+	assertFalse(Thread.interrupted());
1382		}});
1383
1384	<	t.start();
1385	<	Thread.sleep(SMALL_DELAY_MS);
1386	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, MILLISECONDS));
1384	>	barrier.await();
1385	>	long startTime = System.nanoTime();
1386	>	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1387	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1388	>
1389	>	barrier.await();
1390	>	assertThreadStaysAlive(t);
1391		t.interrupt();
1392	<	t.join();
1392	>	awaitTermination(t);
1393		}
1394
1204	–
1395		/**
1396		* element returns next element, or throws NSEE if empty
1397		*/
#	Line 1218 | Line 1408 | public class LinkedBlockingDequeTest ext
1408		}
1409
1410		/**
1221	–	* remove(x) removes x and returns true if present
1222	–	*/
1223	–	public void testRemoveElement() {
1224	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1225	–	for (int i = 1; i < SIZE; i+=2) {
1226	–	assertTrue(q.remove(new Integer(i)));
1227	–	}
1228	–	for (int i = 0; i < SIZE; i+=2) {
1229	–	assertTrue(q.remove(new Integer(i)));
1230	–	assertFalse(q.remove(new Integer(i+1)));
1231	–	}
1232	–	assertTrue(q.isEmpty());
1233	–	}
1234	–
1235	–	/**
1411		* contains(x) reports true when elements added but not yet removed
1412		*/
1413		public void testContains() {
#	Line 1288 | Line 1463 | public class LinkedBlockingDequeTest ext
1463		assertTrue(changed);
1464
1465		assertTrue(q.containsAll(p));
1466	<	assertEquals(SIZE-i, q.size());
1466	>	assertEquals(SIZE - i, q.size());
1467		p.remove();
1468		}
1469		}
#	Line 1301 | Line 1476 | public class LinkedBlockingDequeTest ext
1476		LinkedBlockingDeque q = populatedDeque(SIZE);
1477		LinkedBlockingDeque p = populatedDeque(i);
1478		assertTrue(q.removeAll(p));
1479	<	assertEquals(SIZE-i, q.size());
1479	>	assertEquals(SIZE - i, q.size());
1480		for (int j = 0; j < i; ++j) {
1481	<	Integer I = (Integer)(p.remove());
1482	<	assertFalse(q.contains(I));
1481	>	Integer x = (Integer)(p.remove());
1482	>	assertFalse(q.contains(x));
1483		}
1484		}
1485		}
1486
1487		/**
1488	<	* toArray contains all elements
1488	>	* toArray contains all elements in FIFO order
1489		*/
1490	<	public void testToArray() throws InterruptedException{
1490	>	public void testToArray() throws InterruptedException {
1491		LinkedBlockingDeque q = populatedDeque(SIZE);
1492		Object[] o = q.toArray();
1493		for (int i = 0; i < o.length; i++)
1494	<	assertEquals(o[i], q.take());
1494	>	assertSame(o[i], q.poll());
1495		}
1496
1497		/**
1498	<	* toArray(a) contains all elements
1498	>	* toArray(a) contains all elements in FIFO order
1499		*/
1500	<	public void testToArray2() throws InterruptedException {
1501	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1500	>	public void testToArray2() {
1501	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1502		Integer[] ints = new Integer[SIZE];
1503	<	ints = (Integer[])q.toArray(ints);
1503	>	Integer[] array = q.toArray(ints);
1504	>	assertSame(ints, array);
1505		for (int i = 0; i < ints.length; i++)
1506	<	assertEquals(ints[i], q.take());
1331	<	}
1332	<
1333	<	/**
1334	<	* toArray(null) throws NPE
1335	<	*/
1336	<	public void testToArray_BadArg() {
1337	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1338	<	try {
1339	<	Object o[] = q.toArray(null);
1340	<	shouldThrow();
1341	<	} catch (NullPointerException success) {}
1506	>	assertSame(ints[i], q.remove());
1507		}
1508
1509		/**
1510	<	* toArray with incompatible array type throws CCE
1510	>	* toArray(incompatible array type) throws ArrayStoreException
1511		*/
1512		public void testToArray1_BadArg() {
1513		LinkedBlockingDeque q = populatedDeque(SIZE);
1514		try {
1515	<	Object o[] = q.toArray(new String[10]);
1515	>	q.toArray(new String[10]);
1516		shouldThrow();
1517		} catch (ArrayStoreException success) {}
1518		}
1519
1355	–
1520		/**
1521		* iterator iterates through all elements
1522		*/
1523		public void testIterator() throws InterruptedException {
1524		LinkedBlockingDeque q = populatedDeque(SIZE);
1525		Iterator it = q.iterator();
1526	<	while (it.hasNext()) {
1526	>	int i;
1527	>	for (i = 0; it.hasNext(); i++)
1528	>	assertTrue(q.contains(it.next()));
1529	>	assertEquals(i, SIZE);
1530	>	assertIteratorExhausted(it);
1531	>
1532	>	it = q.iterator();
1533	>	for (i = 0; it.hasNext(); i++)
1534		assertEquals(it.next(), q.take());
1535	<	}
1535	>	assertEquals(i, SIZE);
1536	>	assertIteratorExhausted(it);
1537	>	}
1538	>
1539	>	/**
1540	>	* iterator of empty collection has no elements
1541	>	*/
1542	>	public void testEmptyIterator() {
1543	>	Deque c = new LinkedBlockingDeque();
1544	>	assertIteratorExhausted(c.iterator());
1545	>	assertIteratorExhausted(c.descendingIterator());
1546		}
1547
1548		/**
#	Line 1383 | Line 1564 | public class LinkedBlockingDequeTest ext
1564		assertFalse(it.hasNext());
1565		}
1566
1386	–
1567		/**
1568		* iterator ordering is FIFO
1569		*/
#	Line 1415 | Line 1595 | public class LinkedBlockingDequeTest ext
1595		assertEquals(0, q.size());
1596		}
1597
1418	–
1598		/**
1599		* Descending iterator iterates through all elements
1600		*/
#	Line 1478 | Line 1657 | public class LinkedBlockingDequeTest ext
1657		}
1658		}
1659
1481	–
1660		/**
1661		* toString contains toStrings of elements
1662		*/
#	Line 1486 | Line 1664 | public class LinkedBlockingDequeTest ext
1664		LinkedBlockingDeque q = populatedDeque(SIZE);
1665		String s = q.toString();
1666		for (int i = 0; i < SIZE; ++i) {
1667	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1667	>	assertTrue(s.contains(String.valueOf(i)));
1668		}
1669		}
1670
1493	–
1671		/**
1672		* offer transfers elements across Executor tasks
1673		*/
#	Line 1498 | Line 1675 | public class LinkedBlockingDequeTest ext
1675		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1676		q.add(one);
1677		q.add(two);
1678	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1679	<	executor.execute(new CheckedRunnable() {
1680	<	public void realRun() throws InterruptedException {
1681	<	assertFalse(q.offer(three));
1682	<	assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
1683	<	assertEquals(0, q.remainingCapacity());
1684	<	}});
1685	<
1686	<	executor.execute(new CheckedRunnable() {
1687	<	public void realRun() throws InterruptedException {
1688	<	Thread.sleep(SMALL_DELAY_MS);
1689	<	assertSame(one, q.take());
1690	<	}});
1691	<
1692	<	joinPool(executor);
1678	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1679	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1680	>	try (PoolCleaner cleaner = cleaner(executor)) {
1681	>	executor.execute(new CheckedRunnable() {
1682	>	public void realRun() throws InterruptedException {
1683	>	assertFalse(q.offer(three));
1684	>	threadsStarted.await();
1685	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1686	>	assertEquals(0, q.remainingCapacity());
1687	>	}});
1688	>
1689	>	executor.execute(new CheckedRunnable() {
1690	>	public void realRun() throws InterruptedException {
1691	>	threadsStarted.await();
1692	>	assertSame(one, q.take());
1693	>	}});
1694	>	}
1695		}
1696
1697		/**
1698	<	* poll retrieves elements across Executor threads
1698	>	* timed poll retrieves elements across Executor threads
1699		*/
1700		public void testPollInExecutor() {
1701		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1702	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1703	<	executor.execute(new CheckedRunnable() {
1704	<	public void realRun() throws InterruptedException {
1705	<	assertNull(q.poll());
1706	<	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
1707	<	assertTrue(q.isEmpty());
1708	<	}});
1709	<
1710	<	executor.execute(new CheckedRunnable() {
1711	<	public void realRun() throws InterruptedException {
1712	<	Thread.sleep(SMALL_DELAY_MS);
1713	<	q.put(one);
1714	<	}});
1715	<
1716	<	joinPool(executor);
1702	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1703	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1704	>	try (PoolCleaner cleaner = cleaner(executor)) {
1705	>	executor.execute(new CheckedRunnable() {
1706	>	public void realRun() throws InterruptedException {
1707	>	assertNull(q.poll());
1708	>	threadsStarted.await();
1709	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1710	>	checkEmpty(q);
1711	>	}});
1712	>
1713	>	executor.execute(new CheckedRunnable() {
1714	>	public void realRun() throws InterruptedException {
1715	>	threadsStarted.await();
1716	>	q.put(one);
1717	>	}});
1718	>	}
1719		}
1720
1721		/**
1722		* A deserialized serialized deque has same elements in same order
1723		*/
1724		public void testSerialization() throws Exception {
1725	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1726	<
1546	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1547	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1548	<	out.writeObject(q);
1549	<	out.close();
1550	<
1551	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1552	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1553	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1554	<	assertEquals(q.size(), r.size());
1555	<	while (!q.isEmpty())
1556	<	assertEquals(q.remove(), r.remove());
1557	<	}
1558	<
1559	<	/**
1560	<	* drainTo(null) throws NPE
1561	<	*/
1562	<	public void testDrainToNull() {
1563	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1564	<	try {
1565	<	q.drainTo(null);
1566	<	shouldThrow();
1567	<	} catch (NullPointerException success) {}
1568	<	}
1725	>	Queue x = populatedDeque(SIZE);
1726	>	Queue y = serialClone(x);
1727
1728	<	/**
1729	<	* drainTo(this) throws IAE
1730	<	*/
1731	<	public void testDrainToSelf() {
1732	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1733	<	try {
1734	<	q.drainTo(q);
1735	<	shouldThrow();
1736	<	} catch (IllegalArgumentException success) {}
1728	>	assertNotSame(y, x);
1729	>	assertEquals(x.size(), y.size());
1730	>	assertEquals(x.toString(), y.toString());
1731	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1732	>	while (!x.isEmpty()) {
1733	>	assertFalse(y.isEmpty());
1734	>	assertEquals(x.remove(), y.remove());
1735	>	}
1736	>	assertTrue(y.isEmpty());
1737		}
1738
1739		/**
#	Line 1585 | Line 1743 | public class LinkedBlockingDequeTest ext
1743		LinkedBlockingDeque q = populatedDeque(SIZE);
1744		ArrayList l = new ArrayList();
1745		q.drainTo(l);
1746	<	assertEquals(q.size(), 0);
1747	<	assertEquals(l.size(), SIZE);
1746	>	assertEquals(0, q.size());
1747	>	assertEquals(SIZE, l.size());
1748		for (int i = 0; i < SIZE; ++i)
1749		assertEquals(l.get(i), new Integer(i));
1750		q.add(zero);
#	Line 1596 | Line 1754 | public class LinkedBlockingDequeTest ext
1754		assertTrue(q.contains(one));
1755		l.clear();
1756		q.drainTo(l);
1757	<	assertEquals(q.size(), 0);
1758	<	assertEquals(l.size(), 2);
1757	>	assertEquals(0, q.size());
1758	>	assertEquals(2, l.size());
1759		for (int i = 0; i < 2; ++i)
1760		assertEquals(l.get(i), new Integer(i));
1761		}
#	Line 1609 | Line 1767 | public class LinkedBlockingDequeTest ext
1767		final LinkedBlockingDeque q = populatedDeque(SIZE);
1768		Thread t = new Thread(new CheckedRunnable() {
1769		public void realRun() throws InterruptedException {
1770	<	q.put(new Integer(SIZE+1));
1770	>	q.put(new Integer(SIZE + 1));
1771		}});
1772
1773		t.start();
#	Line 1623 | Line 1781 | public class LinkedBlockingDequeTest ext
1781		}
1782
1783		/**
1626	–	* drainTo(null, n) throws NPE
1627	–	*/
1628	–	public void testDrainToNullN() {
1629	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1630	–	try {
1631	–	q.drainTo(null, 0);
1632	–	shouldThrow();
1633	–	} catch (NullPointerException success) {}
1634	–	}
1635	–
1636	–	/**
1637	–	* drainTo(this, n) throws IAE
1638	–	*/
1639	–	public void testDrainToSelfN() {
1640	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1641	–	try {
1642	–	q.drainTo(q, 0);
1643	–	shouldThrow();
1644	–	} catch (IllegalArgumentException success) {}
1645	–	}
1646	–
1647	–	/**
1784		* drainTo(c, n) empties first min(n, size) elements of queue into c
1785		*/
1786		public void testDrainToN() {
#	Line 1655 | Line 1791 | public class LinkedBlockingDequeTest ext
1791		ArrayList l = new ArrayList();
1792		q.drainTo(l, i);
1793		int k = (i < SIZE) ? i : SIZE;
1794	<	assertEquals(l.size(), k);
1795	<	assertEquals(q.size(), SIZE-k);
1794	>	assertEquals(k, l.size());
1795	>	assertEquals(SIZE - k, q.size());
1796		for (int j = 0; j < k; ++j)
1797		assertEquals(l.get(j), new Integer(j));
1798	<	while (q.poll() != null) ;
1798	>	do {} while (q.poll() != null);
1799	>	}
1800	>	}
1801	>
1802	>	/**
1803	>	* remove(null), contains(null) always return false
1804	>	*/
1805	>	public void testNeverContainsNull() {
1806	>	Deque<?>[] qs = {
1807	>	new LinkedBlockingDeque<Object>(),
1808	>	populatedDeque(2),
1809	>	};
1810	>
1811	>	for (Deque<?> q : qs) {
1812	>	assertFalse(q.contains(null));
1813	>	assertFalse(q.remove(null));
1814	>	assertFalse(q.removeFirstOccurrence(null));
1815	>	assertFalse(q.removeLastOccurrence(null));
1816		}
1817		}
1818

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