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root/jsr166/jsr166/src/test/tck/AbstractExecutorServiceTest.java

Comparing jsr166/src/test/tck/AbstractExecutorServiceTest.java (file contents):
Revision 1.6 by dl, Mon Dec 22 00:48:55 2003 UTC vs.
Revision 1.49 by dl, Tue Jan 26 13:33:05 2021 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
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/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10
11	<	import junit.framework.*;
12	<	import java.util.*;
13	<	import java.util.concurrent.*;
14	<	import java.math.BigInteger;
15	<	import java.security.*;
11	>	import java.security.PrivilegedAction;
12	>	import java.security.PrivilegedExceptionAction;
13	>	import java.util.ArrayList;
14	>	import java.util.Collection;
15	>	import java.util.Collections;
16	>	import java.util.List;
17	>	import java.util.concurrent.AbstractExecutorService;
18	>	import java.util.concurrent.ArrayBlockingQueue;
19	>	import java.util.concurrent.Callable;
20	>	import java.util.concurrent.CancellationException;
21	>	import java.util.concurrent.CountDownLatch;
22	>	import java.util.concurrent.ExecutionException;
23	>	import java.util.concurrent.Executors;
24	>	import java.util.concurrent.ExecutorService;
25	>	import java.util.concurrent.Future;
26	>	import java.util.concurrent.ThreadPoolExecutor;
27	>	import java.util.concurrent.TimeUnit;
28	>	import java.util.concurrent.atomic.AtomicBoolean;
29
30	<	public class AbstractExecutorServiceTest extends JSR166TestCase{
30	>	import junit.framework.Test;
31	>	import junit.framework.TestSuite;
32	>
33	>	public class AbstractExecutorServiceTest extends JSR166TestCase {
34		public static void main(String[] args) {
35	<	junit.textui.TestRunner.run (suite());
35	>	main(suite(), args);
36		}
37		public static Test suite() {
38		return new TestSuite(AbstractExecutorServiceTest.class);
39		}
40
41	<	/**
41	>	/**
42		* A no-frills implementation of AbstractExecutorService, designed
43		* to test the submit methods only.
44		*/
45		static class DirectExecutorService extends AbstractExecutorService {
46		public void execute(Runnable r) { r.run(); }
47		public void shutdown() { shutdown = true; }
48	<	public List<Runnable> shutdownNow() { shutdown = true; return Collections.EMPTY_LIST; }
48	>	public List<Runnable> shutdownNow() {
49	>	shutdown = true;
50	>	return Collections.emptyList();
51	>	}
52		public boolean isShutdown() { return shutdown; }
53		public boolean isTerminated() { return isShutdown(); }
54	<	public boolean awaitTermination(long timeout, TimeUnit unit) { return isShutdown(); }
54	>	public boolean awaitTermination(long timeout, TimeUnit unit) {
55	>	return isShutdown();
56	>	}
57		private volatile boolean shutdown = false;
58		}
59
60		/**
61	<	* execute of runnable runs it to completion
61	>	* execute(runnable) runs it to completion
62		*/
63	<	public void testExecuteRunnable() {
64	<	try {
65	<	ExecutorService e = new DirectExecutorService();
66	<	TrackedShortRunnable task = new TrackedShortRunnable();
67	<	assertFalse(task.done);
68	<	Future<?> future = e.submit(task);
69	<	future.get();
70	<	assertTrue(task.done);
71	<	}
72	<	catch (ExecutionException ex) {
73	<	unexpectedException();
74	<	}
52	<	catch (InterruptedException ex) {
53	<	unexpectedException();
54	<	}
63	>	public void testExecuteRunnable() throws Exception {
64	>	ExecutorService e = new DirectExecutorService();
65	>	final AtomicBoolean done = new AtomicBoolean(false);
66	>	Future<?> future = e.submit(new CheckedRunnable() {
67	>	public void realRun() {
68	>	done.set(true);
69	>	}});
70	>	assertNull(future.get());
71	>	assertNull(future.get(0, MILLISECONDS));
72	>	assertTrue(done.get());
73	>	assertTrue(future.isDone());
74	>	assertFalse(future.isCancelled());
75		}
76
57	–
77		/**
78	<	* completed submit of callable returns result
78	>	* Completed submit(callable) returns result
79		*/
80	<	public void testSubmitCallable() {
81	<	try {
82	<	ExecutorService e = new DirectExecutorService();
83	<	Future<String> future = e.submit(new StringTask());
84	<	String result = future.get();
66	<	assertSame(TEST_STRING, result);
67	<	}
68	<	catch (ExecutionException ex) {
69	<	unexpectedException();
70	<	}
71	<	catch (InterruptedException ex) {
72	<	unexpectedException();
73	<	}
80	>	public void testSubmitCallable() throws Exception {
81	>	ExecutorService e = new DirectExecutorService();
82	>	Future<String> future = e.submit(new StringTask());
83	>	String result = future.get();
84	>	assertSame(TEST_STRING, result);
85		}
86
87		/**
88	<	* completed submit of runnable returns successfully
88	>	* Completed submit(runnable) returns successfully
89		*/
90	<	public void testSubmitRunnable() {
91	<	try {
92	<	ExecutorService e = new DirectExecutorService();
93	<	Future<?> future = e.submit(new NoOpRunnable());
94	<	future.get();
84	<	assertTrue(future.isDone());
85	<	}
86	<	catch (ExecutionException ex) {
87	<	unexpectedException();
88	<	}
89	<	catch (InterruptedException ex) {
90	<	unexpectedException();
91	<	}
90	>	public void testSubmitRunnable() throws Exception {
91	>	ExecutorService e = new DirectExecutorService();
92	>	Future<?> future = e.submit(new NoOpRunnable());
93	>	future.get();
94	>	assertTrue(future.isDone());
95		}
96
97		/**
98	<	* completed submit of (runnable, result) returns result
98	>	* Completed submit(runnable, result) returns result
99		*/
100	<	public void testSubmitRunnable2() {
101	<	try {
102	<	ExecutorService e = new DirectExecutorService();
103	<	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
104	<	String result = future.get();
102	<	assertSame(TEST_STRING, result);
103	<	}
104	<	catch (ExecutionException ex) {
105	<	unexpectedException();
106	<	}
107	<	catch (InterruptedException ex) {
108	<	unexpectedException();
109	<	}
100	>	public void testSubmitRunnable2() throws Exception {
101	>	ExecutorService e = new DirectExecutorService();
102	>	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
103	>	String result = future.get();
104	>	assertSame(TEST_STRING, result);
105		}
106
112	–
107		/**
108	<	* submit of a privileged action runs it to completion
108	>	* A submitted privileged action runs to completion
109		*/
110	<	public void testSubmitPrivilegedAction() {
111	<	Policy savedPolicy = Policy.getPolicy();
112	<	AdjustablePolicy policy = new AdjustablePolicy();
113	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
114	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
121	<	Policy.setPolicy(policy);
122	<	try {
123	<	ExecutorService e = new DirectExecutorService();
124	<	Future future = e.submit(Executors.callable(new PrivilegedAction() {
110	>	public void testSubmitPrivilegedAction() throws Exception {
111	>	Runnable r = new CheckedRunnable() {
112	>	public void realRun() throws Exception {
113	>	ExecutorService e = new DirectExecutorService();
114	>	Future<?> future = e.submit(Executors.callable(new PrivilegedAction<Object>() {
115		public Object run() {
116		return TEST_STRING;
117		}}));
118
119	<	Object result = future.get();
120	<	assertSame(TEST_STRING, result);
121	<	}
122	<	catch (ExecutionException ex) {
123	<	unexpectedException();
124	<	}
125	<	catch (InterruptedException ex) {
136	<	unexpectedException();
137	<	}
138	<	finally {
139	<	Policy.setPolicy(savedPolicy);
140	<	}
119	>	assertSame(TEST_STRING, future.get());
120	>	}};
121	>
122	>	runWithPermissions(r,
123	>	new RuntimePermission("getClassLoader"),
124	>	new RuntimePermission("setContextClassLoader"),
125	>	new RuntimePermission("modifyThread"));
126		}
127
128		/**
129	<	* submit of a privileged exception action runs it to completion
129	>	* A submitted privileged exception action runs to completion
130		*/
131	<	public void testSubmitPrivilegedExceptionAction() {
132	<	Policy savedPolicy = Policy.getPolicy();
133	<	AdjustablePolicy policy = new AdjustablePolicy();
134	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
135	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
151	<	Policy.setPolicy(policy);
152	<	try {
153	<	ExecutorService e = new DirectExecutorService();
154	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
131	>	public void testSubmitPrivilegedExceptionAction() throws Exception {
132	>	Runnable r = new CheckedRunnable() {
133	>	public void realRun() throws Exception {
134	>	ExecutorService e = new DirectExecutorService();
135	>	Future<?> future = e.submit(Executors.callable(new PrivilegedExceptionAction<Object>() {
136		public Object run() {
137		return TEST_STRING;
138		}}));
139
140	<	Object result = future.get();
141	<	assertSame(TEST_STRING, result);
142	<	}
143	<	catch (ExecutionException ex) {
163	<	unexpectedException();
164	<	}
165	<	catch (InterruptedException ex) {
166	<	unexpectedException();
167	<	}
168	<	finally {
169	<	Policy.setPolicy(savedPolicy);
170	<	}
140	>	assertSame(TEST_STRING, future.get());
141	>	}};
142	>
143	>	runWithPermissions(r);
144		}
145
146		/**
147	<	* submit of a failed privileged exception action reports exception
147	>	* A submitted failed privileged exception action reports exception
148		*/
149	<	public void testSubmitFailedPrivilegedExceptionAction() {
150	<	Policy savedPolicy = Policy.getPolicy();
151	<	AdjustablePolicy policy = new AdjustablePolicy();
152	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
153	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
181	<	Policy.setPolicy(policy);
182	<	try {
183	<	ExecutorService e = new DirectExecutorService();
184	<	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
149	>	public void testSubmitFailedPrivilegedExceptionAction() throws Exception {
150	>	Runnable r = new CheckedRunnable() {
151	>	public void realRun() throws Exception {
152	>	ExecutorService e = new DirectExecutorService();
153	>	Future<?> future = e.submit(Executors.callable(new PrivilegedExceptionAction<Object>() {
154		public Object run() throws Exception {
155		throw new IndexOutOfBoundsException();
156		}}));
157
158	<	Object result = future.get();
159	<	shouldThrow();
160	<	}
161	<	catch (ExecutionException success) {
162	<	}
163	<	catch (InterruptedException ex) {
164	<	unexpectedException();
165	<	}
197	<	finally {
198	<	Policy.setPolicy(savedPolicy);
199	<	}
158	>	try {
159	>	future.get();
160	>	shouldThrow();
161	>	} catch (ExecutionException success) {
162	>	assertTrue(success.getCause() instanceof IndexOutOfBoundsException);
163	>	}}};
164	>
165	>	runWithPermissions(r);
166		}
167
168		/**
169	<	* execute with a null runnable throws NPE
169	>	* Submitting null tasks throws NullPointerException
170		*/
171	<	public void testExecuteNullRunnable() {
172	<	try {
173	<	ExecutorService e = new DirectExecutorService();
174	<	TrackedShortRunnable task = null;
209	<	Future<?> future = e.submit(task);
210	<	shouldThrow();
211	<	}
212	<	catch (NullPointerException success) {
213	<	}
214	<	catch (Exception ex) {
215	<	unexpectedException();
171	>	public void testNullTaskSubmission() {
172	>	final ExecutorService e = new DirectExecutorService();
173	>	try (PoolCleaner cleaner = cleaner(e)) {
174	>	assertNullTaskSubmissionThrowsNullPointerException(e);
175		}
176		}
177
219	–
178		/**
179	<	* submit of a null callable throws NPE
179	>	* submit(callable).get() throws InterruptedException if interrupted
180		*/
181	<	public void testSubmitNullCallable() {
182	<	try {
183	<	ExecutorService e = new DirectExecutorService();
184	<	StringTask t = null;
185	<	Future<String> future = e.submit(t);
186	<	shouldThrow();
187	<	}
188	<	catch (NullPointerException success) {
189	<	}
190	<	catch (Exception ex) {
191	<	unexpectedException();
181	>	public void testInterruptedSubmit() throws InterruptedException {
182	>	final CountDownLatch submitted    = new CountDownLatch(1);
183	>	final CountDownLatch quittingTime = new CountDownLatch(1);
184	>	final Callable<Void> awaiter = new CheckedCallable<Void>() {
185	>	public Void realCall() throws InterruptedException {
186	>	assertTrue(quittingTime.await(2*LONG_DELAY_MS, MILLISECONDS));
187	>	return null;
188	>	}};
189	>	final ExecutorService p
190	>	= new ThreadPoolExecutor(1,1,60, TimeUnit.SECONDS,
191	>	new ArrayBlockingQueue<Runnable>(10));
192	>	try (PoolCleaner cleaner = cleaner(p, quittingTime)) {
193	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
194	>	public void realRun() throws Exception {
195	>	Future<Void> future = p.submit(awaiter);
196	>	submitted.countDown();
197	>	future.get();
198	>	}});
199	>
200	>	await(submitted);
201	>	t.interrupt();
202	>	awaitTermination(t);
203		}
204		}
205
206		/**
207	<	* submit of Runnable throws RejectedExecutionException if
208	<	* saturated.
207	>	* get of submit(callable) throws ExecutionException if callable
208	>	* throws exception
209		*/
210	<	public void testExecute1() {
211	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
212	<	try {
213	<
214	<	for(int i = 0; i < 5; ++i){
215	<	p.submit(new MediumRunnable());
210	>	public void testSubmitEE() throws InterruptedException {
211	>	final ThreadPoolExecutor p =
212	>	new ThreadPoolExecutor(1, 1,
213	>	60, TimeUnit.SECONDS,
214	>	new ArrayBlockingQueue<Runnable>(10));
215	>	try (PoolCleaner cleaner = cleaner(p)) {
216	>	Callable<Object> c = new Callable<Object>() {
217	>	public Object call() { throw new ArithmeticException(); }};
218	>	try {
219	>	p.submit(c).get();
220	>	shouldThrow();
221	>	} catch (ExecutionException success) {
222	>	assertTrue(success.getCause() instanceof ArithmeticException);
223		}
224	<	shouldThrow();
249	<	} catch(RejectedExecutionException success){}
250	<	joinPool(p);
224	>	}
225		}
226
227		/**
228	<	* Completed submit of Callable throws RejectedExecutionException
255	<	*  if saturated.
228	>	* invokeAny(null) throws NPE
229		*/
230	<	public void testExecute2() {
231	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
232	<	try {
233	<	for(int i = 0; i < 5; ++i) {
234	<	p.submit(new SmallCallable());
235	<	}
236	<	shouldThrow();
237	<	} catch(RejectedExecutionException e){}
265	<	joinPool(p);
230	>	public void testInvokeAny1() throws Exception {
231	>	final ExecutorService e = new DirectExecutorService();
232	>	try (PoolCleaner cleaner = cleaner(e)) {
233	>	try {
234	>	e.invokeAny(null);
235	>	shouldThrow();
236	>	} catch (NullPointerException success) {}
237	>	}
238		}
239
268	–
240		/**
241	<	*  blocking on submit of Callable throws InterruptedException if
242	<	*  caller interrupted.
243	<	*/
244	<	public void testInterruptedSubmit() {
245	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
246	<	Thread t = new Thread(new Runnable() {
247	<	public void run() {
248	<	try {
249	<	p.submit(new Callable<Object>() {
250	<	public Object call() {
251	<	try {
281	<	Thread.sleep(MEDIUM_DELAY_MS);
282	<	shouldThrow();
283	<	} catch(InterruptedException e){
284	<	}
285	<	return null;
286	<	}
287	<	}).get();
288	<	} catch(InterruptedException success){
289	<	} catch(Exception e) {
290	<	unexpectedException();
291	<	}
292	<
293	<	}
294	<	});
295	<	try {
296	<	t.start();
297	<	Thread.sleep(SHORT_DELAY_MS);
298	<	t.interrupt();
299	<	} catch(Exception e){
300	<	unexpectedException();
241	>	* invokeAny(empty collection) throws IllegalArgumentException
242	>	*/
243	>	public void testInvokeAny2() throws Exception {
244	>	final ExecutorService e = new DirectExecutorService();
245	>	final Collection<Callable<String>> emptyCollection
246	>	= Collections.emptyList();
247	>	try (PoolCleaner cleaner = cleaner(e)) {
248	>	try {
249	>	e.invokeAny(emptyCollection);
250	>	shouldThrow();
251	>	} catch (IllegalArgumentException success) {}
252		}
302	–	joinPool(p);
253		}
254
255		/**
256	<	*  get of submit of Callable throws Exception if callable
307	<	*  interrupted
256	>	* invokeAny(c) throws NPE if c has null elements
257		*/
258	<	public void testSubmitIE() {
259	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
260	<
261	<	final Callable c = new Callable() {
262	<	public Object call() {
263	<	try {
264	<	p.submit(new SmallCallable()).get();
265	<	shouldThrow();
266	<	} catch(InterruptedException e){}
267	<	catch(RejectedExecutionException e2){}
268	<	catch(ExecutionException e3){}
269	<	return Boolean.TRUE;
270	<	}
322	<	};
323	<
258	>	public void testInvokeAny3() throws Exception {
259	>	final ExecutorService e = new DirectExecutorService();
260	>	try (PoolCleaner cleaner = cleaner(e)) {
261	>	List<Callable<Long>> l = new ArrayList<>();
262	>	l.add(new Callable<Long>() {
263	>	public Long call() { throw new ArithmeticException(); }});
264	>	l.add(null);
265	>	try {
266	>	e.invokeAny(l);
267	>	shouldThrow();
268	>	} catch (NullPointerException success) {}
269	>	}
270	>	}
271
272	+	/**
273	+	* invokeAny(c) throws ExecutionException if no task in c completes
274	+	*/
275	+	public void testInvokeAny4() throws InterruptedException {
276	+	final ExecutorService e = new DirectExecutorService();
277	+	try (PoolCleaner cleaner = cleaner(e)) {
278	+	List<Callable<String>> l = new ArrayList<>();
279	+	l.add(new NPETask());
280	+	try {
281	+	e.invokeAny(l);
282	+	shouldThrow();
283	+	} catch (ExecutionException success) {
284	+	assertTrue(success.getCause() instanceof NullPointerException);
285	+	}
286	+	}
287	+	}
288
289	<	Thread t = new Thread(new Runnable() {
290	<	public void run() {
291	<	try {
292	<	c.call();
293	<	} catch(Exception e){}
294	<	}
295	<	});
296	<	try {
297	<	t.start();
298	<	Thread.sleep(SHORT_DELAY_MS);
299	<	t.interrupt();
337	<	t.join();
338	<	} catch(InterruptedException e){
339	<	unexpectedException();
289	>	/**
290	>	* invokeAny(c) returns result of some task in c if at least one completes
291	>	*/
292	>	public void testInvokeAny5() throws Exception {
293	>	final ExecutorService e = new DirectExecutorService();
294	>	try (PoolCleaner cleaner = cleaner(e)) {
295	>	List<Callable<String>> l = new ArrayList<>();
296	>	l.add(new StringTask());
297	>	l.add(new StringTask());
298	>	String result = e.invokeAny(l);
299	>	assertSame(TEST_STRING, result);
300		}
301	+	}
302
303	<	joinPool(p);
303	>	/**
304	>	* invokeAll(null) throws NPE
305	>	*/
306	>	public void testInvokeAll1() throws InterruptedException {
307	>	final ExecutorService e = new DirectExecutorService();
308	>	try (PoolCleaner cleaner = cleaner(e)) {
309	>	try {
310	>	e.invokeAll(null);
311	>	shouldThrow();
312	>	} catch (NullPointerException success) {}
313	>	}
314		}
315
316		/**
317	<	*  completed submit of Callable throws ExecutionException if
347	<	*  callable throws exception
317	>	* invokeAll(empty collection) returns empty list
318		*/
319	<	public void testSubmitEE() {
320	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
319	>	public void testInvokeAll2() throws InterruptedException {
320	>	final ExecutorService e = new DirectExecutorService();
321	>	final Collection<Callable<String>> emptyCollection
322	>	= Collections.emptyList();
323	>	try (PoolCleaner cleaner = cleaner(e)) {
324	>	List<Future<String>> r = e.invokeAll(emptyCollection);
325	>	assertTrue(r.isEmpty());
326	>	}
327	>	}
328
329	<	try {
330	<	Callable c = new Callable() {
331	<	public Object call() {
332	<	int i = 5/0;
333	<	return Boolean.TRUE;
334	<	}
335	<	};
329	>	/**
330	>	* invokeAll(c) throws NPE if c has null elements
331	>	*/
332	>	public void testInvokeAll3() throws InterruptedException {
333	>	final ExecutorService e = new DirectExecutorService();
334	>	try (PoolCleaner cleaner = cleaner(e)) {
335	>	List<Callable<String>> l = new ArrayList<>();
336	>	l.add(new StringTask());
337	>	l.add(null);
338	>	try {
339	>	e.invokeAll(l);
340	>	shouldThrow();
341	>	} catch (NullPointerException success) {}
342	>	}
343	>	}
344
345	<	for(int i =0; i < 5; i++){
346	<	p.submit(c).get();
345	>	/**
346	>	* get of returned element of invokeAll(c) throws exception on failed task
347	>	*/
348	>	public void testInvokeAll4() throws Exception {
349	>	final ExecutorService e = new DirectExecutorService();
350	>	try (PoolCleaner cleaner = cleaner(e)) {
351	>	List<Callable<String>> l = new ArrayList<>();
352	>	l.add(new NPETask());
353	>	List<Future<String>> futures = e.invokeAll(l);
354	>	assertEquals(1, futures.size());
355	>	try {
356	>	futures.get(0).get();
357	>	shouldThrow();
358	>	} catch (ExecutionException success) {
359	>	assertTrue(success.getCause() instanceof NullPointerException);
360		}
361	+	}
362	+	}
363
364	<	shouldThrow();
364	>	/**
365	>	* invokeAll(c) returns results of all completed tasks in c
366	>	*/
367	>	public void testInvokeAll5() throws Exception {
368	>	final ExecutorService e = new DirectExecutorService();
369	>	try (PoolCleaner cleaner = cleaner(e)) {
370	>	List<Callable<String>> l = new ArrayList<>();
371	>	l.add(new StringTask());
372	>	l.add(new StringTask());
373	>	List<Future<String>> futures = e.invokeAll(l);
374	>	assertEquals(2, futures.size());
375	>	for (Future<String> future : futures)
376	>	assertSame(TEST_STRING, future.get());
377		}
378	<	catch(ExecutionException success){
379	<	} catch(Exception e) {
380	<	unexpectedException();
378	>	}
379	>
380	>	/**
381	>	* timed invokeAny(null) throws NPE
382	>	*/
383	>	public void testTimedInvokeAny1() throws Exception {
384	>	final ExecutorService e = new DirectExecutorService();
385	>	try (PoolCleaner cleaner = cleaner(e)) {
386	>	try {
387	>	e.invokeAny(null, randomTimeout(), randomTimeUnit());
388	>	shouldThrow();
389	>	} catch (NullPointerException success) {}
390		}
370	–	joinPool(p);
391		}
392
393		/**
394	<	* invokeAny(null) throws NPE
394	>	* timed invokeAny(null time unit) throws NullPointerException
395		*/
396	<	public void testInvokeAny1() {
397	<	ExecutorService e = new DirectExecutorService();
398	<	try {
399	<	e.invokeAny(null);
400	<	} catch (NullPointerException success) {
401	<	} catch(Exception ex) {
402	<	unexpectedException();
403	<	} finally {
404	<	joinPool(e);
396	>	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
397	>	final ExecutorService e = new DirectExecutorService();
398	>	try (PoolCleaner cleaner = cleaner(e)) {
399	>	List<Callable<String>> l = new ArrayList<>();
400	>	l.add(new StringTask());
401	>	try {
402	>	e.invokeAny(l, randomTimeout(), null);
403	>	shouldThrow();
404	>	} catch (NullPointerException success) {}
405		}
406		}
407
408		/**
409	<	* invokeAny(empty collection) throws IAE
409	>	* timed invokeAny(empty collection) throws IllegalArgumentException
410		*/
411	<	public void testInvokeAny2() {
412	<	ExecutorService e = new DirectExecutorService();
413	<	try {
414	<	e.invokeAny(new ArrayList<Callable<String>>());
415	<	} catch (IllegalArgumentException success) {
416	<	} catch(Exception ex) {
417	<	unexpectedException();
418	<	} finally {
419	<	joinPool(e);
411	>	public void testTimedInvokeAny2() throws Exception {
412	>	final ExecutorService e = new DirectExecutorService();
413	>	final Collection<Callable<String>> emptyCollection
414	>	= Collections.emptyList();
415	>	try (PoolCleaner cleaner = cleaner(e)) {
416	>	try {
417	>	e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit());
418	>	shouldThrow();
419	>	} catch (IllegalArgumentException success) {}
420		}
421		}
422
423		/**
424	<	* invokeAny(c) throws NPE if c has null elements
424	>	* timed invokeAny(c) throws NPE if c has null elements
425		*/
426	<	public void testInvokeAny3() {
427	<	ExecutorService e = new DirectExecutorService();
428	<	try {
429	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
430	<	l.add(new StringTask());
426	>	public void testTimedInvokeAny3() throws Exception {
427	>	final ExecutorService e = new DirectExecutorService();
428	>	try (PoolCleaner cleaner = cleaner(e)) {
429	>	List<Callable<Long>> l = new ArrayList<>();
430	>	l.add(new Callable<Long>() {
431	>	public Long call() { throw new ArithmeticException(); }});
432		l.add(null);
433	<	e.invokeAny(l);
434	<	} catch (NullPointerException success) {
435	<	} catch(Exception ex) {
436	<	unexpectedException();
416	<	} finally {
417	<	joinPool(e);
433	>	try {
434	>	e.invokeAny(l, randomTimeout(), randomTimeUnit());
435	>	shouldThrow();
436	>	} catch (NullPointerException success) {}
437		}
438		}
439
440		/**
441	<	* invokeAny(c) throws ExecutionException if no task completes
441	>	* timed invokeAny(c) throws ExecutionException if no task completes
442		*/
443	<	public void testInvokeAny4() {
444	<	ExecutorService e = new DirectExecutorService();
445	<	try {
446	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
443	>	public void testTimedInvokeAny4() throws Exception {
444	>	final ExecutorService e = new DirectExecutorService();
445	>	try (PoolCleaner cleaner = cleaner(e)) {
446	>	long startTime = System.nanoTime();
447	>	List<Callable<String>> l = new ArrayList<>();
448		l.add(new NPETask());
449	<	List<Future<String>> result = e.invokeAll(l);
450	<	assertEquals(1, result.size());
451	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
452	<	it.next().get();
453	<	} catch(ExecutionException success) {
454	<	} catch(Exception ex) {
455	<	unexpectedException();
436	<	} finally {
437	<	joinPool(e);
449	>	try {
450	>	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
451	>	shouldThrow();
452	>	} catch (ExecutionException success) {
453	>	assertTrue(success.getCause() instanceof NullPointerException);
454	>	}
455	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
456		}
457		}
458
459		/**
460	<	* invokeAny(c) returns result of some task
460	>	* timed invokeAny(c) returns result of some task in c
461		*/
462	<	public void testInvokeAny5() {
463	<	ExecutorService e = new DirectExecutorService();
464	<	try {
465	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
462	>	public void testTimedInvokeAny5() throws Exception {
463	>	final ExecutorService e = new DirectExecutorService();
464	>	try (PoolCleaner cleaner = cleaner(e)) {
465	>	long startTime = System.nanoTime();
466	>	List<Callable<String>> l = new ArrayList<>();
467		l.add(new StringTask());
468		l.add(new StringTask());
469	<	String result = e.invokeAny(l);
469	>	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
470		assertSame(TEST_STRING, result);
471	<	} catch (ExecutionException success) {
453	<	} catch(Exception ex) {
454	<	unexpectedException();
455	<	} finally {
456	<	joinPool(e);
471	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
472		}
473		}
474
475		/**
476	<	* invokeAll(null) throws NPE
476	>	* timed invokeAll(null) throws NullPointerException
477		*/
478	<	public void testInvokeAll1() {
479	<	ExecutorService e = new DirectExecutorService();
480	<	try {
481	<	e.invokeAll(null);
482	<	} catch (NullPointerException success) {
483	<	} catch(Exception ex) {
484	<	unexpectedException();
470	<	} finally {
471	<	joinPool(e);
478	>	public void testTimedInvokeAll1() throws InterruptedException {
479	>	final ExecutorService e = new DirectExecutorService();
480	>	try (PoolCleaner cleaner = cleaner(e)) {
481	>	try {
482	>	e.invokeAll(null, randomTimeout(), randomTimeUnit());
483	>	shouldThrow();
484	>	} catch (NullPointerException success) {}
485		}
486		}
487
488		/**
489	<	* invokeAll(empty collection) returns empty collection
489	>	* timed invokeAll(null time unit) throws NPE
490		*/
491	<	public void testInvokeAll2() {
492	<	ExecutorService e = new DirectExecutorService();
493	<	try {
494	<	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
491	>	public void testTimedInvokeAllNullTimeUnit() throws InterruptedException {
492	>	final ExecutorService e = new DirectExecutorService();
493	>	try (PoolCleaner cleaner = cleaner(e)) {
494	>	List<Callable<String>> l = new ArrayList<>();
495	>	l.add(new StringTask());
496	>	try {
497	>	e.invokeAll(l, randomTimeout(), null);
498	>	shouldThrow();
499	>	} catch (NullPointerException success) {}
500	>	}
501	>	}
502	>
503	>	/**
504	>	* timed invokeAll(empty collection) returns empty list
505	>	*/
506	>	public void testTimedInvokeAll2() throws InterruptedException {
507	>	final ExecutorService e = new DirectExecutorService();
508	>	final Collection<Callable<String>> emptyCollection
509	>	= Collections.emptyList();
510	>	try (PoolCleaner cleaner = cleaner(e)) {
511	>	List<Future<String>> r =
512	>	e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit());
513		assertTrue(r.isEmpty());
483	–	} catch(Exception ex) {
484	–	unexpectedException();
485	–	} finally {
486	–	joinPool(e);
514		}
515		}
516
517		/**
518	<	* invokeAll(c) throws NPE if c has null elements
518	>	* timed invokeAll(c) throws NullPointerException if c has null elements
519		*/
520	<	public void testInvokeAll3() {
521	<	ExecutorService e = new DirectExecutorService();
522	<	try {
523	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
520	>	public void testTimedInvokeAll3() throws InterruptedException {
521	>	final ExecutorService e = new DirectExecutorService();
522	>	try (PoolCleaner cleaner = cleaner(e)) {
523	>	List<Callable<String>> l = new ArrayList<>();
524		l.add(new StringTask());
525		l.add(null);
526	<	e.invokeAll(l);
527	<	} catch (NullPointerException success) {
528	<	} catch(Exception ex) {
529	<	unexpectedException();
503	<	} finally {
504	<	joinPool(e);
526	>	try {
527	>	e.invokeAll(l, randomTimeout(), randomTimeUnit());
528	>	shouldThrow();
529	>	} catch (NullPointerException success) {}
530		}
531		}
532
533		/**
534	<	* get of element of invokeAll(c) throws exception on failed task
534	>	* get of returned element of invokeAll(c) throws exception on failed task
535		*/
536	<	public void testInvokeAll4() {
537	<	ExecutorService e = new DirectExecutorService();
538	<	try {
539	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
536	>	public void testTimedInvokeAll4() throws Exception {
537	>	final ExecutorService e = new DirectExecutorService();
538	>	try (PoolCleaner cleaner = cleaner(e)) {
539	>	List<Callable<String>> l = new ArrayList<>();
540		l.add(new NPETask());
541	<	List<Future<String>> result = e.invokeAll(l);
542	<	assertEquals(1, result.size());
543	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
544	<	it.next().get();
545	<	} catch(ExecutionException success) {
546	<	} catch(Exception ex) {
547	<	unexpectedException();
548	<	} finally {
549	<	joinPool(e);
541	>	List<Future<String>> futures =
542	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
543	>	assertEquals(1, futures.size());
544	>	try {
545	>	futures.get(0).get();
546	>	shouldThrow();
547	>	} catch (ExecutionException success) {
548	>	assertTrue(success.getCause() instanceof NullPointerException);
549	>	}
550		}
551		}
552
553		/**
554	<	* invokeAll(c) returns results of all completed tasks
554	>	* timed invokeAll(c) returns results of all completed tasks in c
555		*/
556	<	public void testInvokeAll5() {
557	<	ExecutorService e = new DirectExecutorService();
558	<	try {
559	<	ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
556	>	public void testTimedInvokeAll5() throws Exception {
557	>	final ExecutorService e = new DirectExecutorService();
558	>	try (PoolCleaner cleaner = cleaner(e)) {
559	>	List<Callable<String>> l = new ArrayList<>();
560		l.add(new StringTask());
561		l.add(new StringTask());
562	<	List<Future<String>> result = e.invokeAll(l);
563	<	assertEquals(2, result.size());
564	<	for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
565	<	assertSame(TEST_STRING, it.next().get());
566	<	} catch (ExecutionException success) {
567	<	} catch(Exception ex) {
568	<	unexpectedException();
569	<	} finally {
570	<	joinPool(e);
562	>	List<Future<String>> futures =
563	>	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
564	>	assertEquals(2, futures.size());
565	>	for (Future<String> future : futures)
566	>	assertSame(TEST_STRING, future.get());
567	>	}
568	>	}
569	>
570	>	/**
571	>	* timed invokeAll cancels tasks not completed by timeout
572	>	*/
573	>	public void testTimedInvokeAll6() throws Exception {
574	>	final ExecutorService e = new DirectExecutorService();
575	>	try (PoolCleaner cleaner = cleaner(e)) {
576	>	for (long timeout = timeoutMillis();;) {
577	>	List<Callable<String>> tasks = new ArrayList<>();
578	>	tasks.add(new StringTask("0"));
579	>	tasks.add(Executors.callable(possiblyInterruptedRunnable(timeout),
580	>	TEST_STRING));
581	>	tasks.add(new StringTask("2"));
582	>	long startTime = System.nanoTime();
583	>	List<Future<String>> futures =
584	>	e.invokeAll(tasks, timeout, MILLISECONDS);
585	>	assertEquals(tasks.size(), futures.size());
586	>	assertTrue(millisElapsedSince(startTime) >= timeout);
587	>	for (Future<?> future : futures)
588	>	assertTrue(future.isDone());
589	>	try {
590	>	assertEquals("0", futures.get(0).get());
591	>	assertEquals(TEST_STRING, futures.get(1).get());
592	>	} catch (CancellationException retryWithLongerTimeout) {
593	>	// unusual delay before starting second task
594	>	timeout *= 2;
595	>	if (timeout >= LONG_DELAY_MS / 2)
596	>	fail("expected exactly one task to be cancelled");
597	>	continue;
598	>	}
599	>	assertTrue(futures.get(2).isCancelled());
600	>	break;
601	>	}
602		}
603		}
604

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