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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:55 2003 UTC vs.
Revision 1.56 by dl, Tue Mar 22 21:29:23 2022 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.*;
11	>	import java.security.AccessControlContext;
12	>	import java.security.AccessControlException;
13	>	import java.security.AccessController;
14	>	import java.security.PrivilegedAction;
15	>	import java.security.PrivilegedExceptionAction;
16	>	import java.util.ArrayList;
17	>	import java.util.List;
18	>	import java.util.concurrent.Callable;
19	>	import java.util.concurrent.CountDownLatch;
20	>	import java.util.concurrent.Executors;
21	>	import java.util.concurrent.ExecutorService;
22	>	import java.util.concurrent.Future;
23	>	import java.util.concurrent.ScheduledExecutorService;
24	>	import java.util.concurrent.ThreadPoolExecutor;
25
26	<	public class ExecutorsTest extends TestCase{
27	<
26	>	import junit.framework.Test;
27	>	import junit.framework.TestSuite;
28	>
29	>	public class ExecutorsTest extends JSR166TestCase {
30		public static void main(String[] args) {
31	<	junit.textui.TestRunner.run (suite());
31	>	main(suite(), args);
32		}
18	–
19	–
33		public static Test suite() {
34	<	return new TestSuite(ExecutorsTest.class);
34	>	return new TestSuite(ExecutorsTest.class);
35		}
36
37	<	private static long SHORT_DELAY_MS = 100;
38	<	private static long MEDIUM_DELAY_MS = 1000;
39	<	private static long LONG_DELAY_MS = 10000;
40	<
41	<	class SleepRun implements Runnable {
42	<	public void run() {
43	<	try{
44	<	Thread.sleep(MEDIUM_DELAY_MS);
45	<	} catch(InterruptedException e){
33	<	fail("unexpected exception");
34	<	}
37	>	/**
38	>	* A newCachedThreadPool can execute runnables
39	>	*/
40	>	public void testNewCachedThreadPool1() {
41	>	final ExecutorService e = Executors.newCachedThreadPool();
42	>	try (PoolCleaner cleaner = cleaner(e)) {
43	>	e.execute(new NoOpRunnable());
44	>	e.execute(new NoOpRunnable());
45	>	e.execute(new NoOpRunnable());
46		}
47		}
37	–
48
49	<	class SleepCall implements Callable {
50	<	public Object call(){
51	<	try{
52	<	Thread.sleep(MEDIUM_DELAY_MS);
53	<	}catch(InterruptedException e){
54	<	fail("unexpected exception");
55	<	}
56	<	return Boolean.TRUE;
49	>	/**
50	>	* A newCachedThreadPool with given ThreadFactory can execute runnables
51	>	*/
52	>	public void testNewCachedThreadPool2() {
53	>	final ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
54	>	try (PoolCleaner cleaner = cleaner(e)) {
55	>	e.execute(new NoOpRunnable());
56	>	e.execute(new NoOpRunnable());
57	>	e.execute(new NoOpRunnable());
58		}
59		}
60
50	–
51	–
61		/**
62	<	*  Test to verify execute(Executor, Runnable) will throw
54	<	*  RejectedExecutionException Attempting to execute a runnable on
55	<	*  a full ThreadPool will cause such an exception here, up to 5
56	<	*  runnables are attempted on a pool capable on handling one
57	<	*  until it throws an exception
62	>	* A newCachedThreadPool with null ThreadFactory throws NPE
63		*/
64	<	public void testExecute1(){
65	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
66	<	try{
67	<
68	<	for(int i = 0; i < 5; ++i){
64	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
65	<	}
66	<	fail("should throw");
67	<	} catch(RejectedExecutionException success){}
68	<	p.shutdownNow();
64	>	public void testNewCachedThreadPool3() {
65	>	try {
66	>	ExecutorService unused = Executors.newCachedThreadPool(null);
67	>	shouldThrow();
68	>	} catch (NullPointerException success) {}
69		}
70
71		/**
72	<	*  Test to verify execute(Executor, Callable) will throw
73	<	*  RejectedExecutionException Attempting to execute a callable on
74	<	*  a full ThreadPool will cause such an exception here, up to 5
75	<	*  runnables are attempted on a pool capable on handling one
76	<	*  until it throws an exception
77	<	*/
78	<	public void testExecute2(){
79	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
80	<	try{
81	<	for(int i = 0; i < 5; ++i) {
82	<	Executors.execute(p, new SleepCall());
83	<	}
84	<	fail("should throw");
85	<	}catch(RejectedExecutionException e){}
86	<	p.shutdownNow();
72	>	* A new SingleThreadExecutor can execute runnables
73	>	*/
74	>	public void testNewSingleThreadExecutor1() {
75	>	final ExecutorService e = Executors.newSingleThreadExecutor();
76	>	try (PoolCleaner cleaner = cleaner(e)) {
77	>	e.execute(new NoOpRunnable());
78	>	e.execute(new NoOpRunnable());
79	>	e.execute(new NoOpRunnable());
80	>	}
81		}
82
89	–
83		/**
84	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
85	<	*  A single use of invoke starts that will wait long enough
86	<	*  for the invoking thread to be interrupted
87	<	*/
88	<	public void testInvoke2(){
89	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
90	<	Thread t = new Thread(new Runnable() {
91	<	public void run(){
92	<	try{
100	<	Executors.invoke(p,new Runnable(){
101	<	public void run(){
102	<	try{
103	<	Thread.sleep(MEDIUM_DELAY_MS);
104	<	fail("should throw");
105	<	}catch(InterruptedException e){
106	<	}
107	<	}
108	<	});
109	<	} catch(InterruptedException success){
110	<	} catch(Exception e) {
111	<	fail("unexpected exception");
112	<	}
113	<
114	<	}
115	<	});
116	<	try{
117	<	t.start();
118	<	Thread.sleep(SHORT_DELAY_MS);
119	<	t.interrupt();
120	<	}catch(Exception e){
121	<	fail("unexpected exception");
122	<	}
123	<	p.shutdownNow();
84	>	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
85	>	*/
86	>	public void testNewSingleThreadExecutor2() {
87	>	final ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
88	>	try (PoolCleaner cleaner = cleaner(e)) {
89	>	e.execute(new NoOpRunnable());
90	>	e.execute(new NoOpRunnable());
91	>	e.execute(new NoOpRunnable());
92	>	}
93		}
94
95		/**
96	<	*  Test to verify invoke(Executor, Runnable) will throw
97	<	*  ExecutionException An ExecutionException occurs when the
98	<	*  underlying Runnable throws an exception, here the
99	<	*  DivideByZeroException will cause an ExecutionException
100	<	*/
101	<	public void testInvoke3(){
102	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
134	<	try{
135	<	Runnable r = new Runnable(){
136	<	public void run(){
137	<	int i = 5/0;
138	<	}
139	<	};
140	<
141	<	for(int i =0; i < 5; i++){
142	<	Executors.invoke(p,r);
143	<	}
144	<
145	<	fail("should throw");
146	<	} catch(ExecutionException success){
147	<	} catch(Exception e){
148	<	fail("should throw EE");
149	<	}
150	<	p.shutdownNow();
96	>	* A new SingleThreadExecutor with null ThreadFactory throws NPE
97	>	*/
98	>	public void testNewSingleThreadExecutor3() {
99	>	try {
100	>	ExecutorService unused = Executors.newSingleThreadExecutor(null);
101	>	shouldThrow();
102	>	} catch (NullPointerException success) {}
103		}
104
105	+	/**
106	+	* A new SingleThreadExecutor cannot be casted to concrete implementation
107	+	*/
108	+	public void testCastNewSingleThreadExecutor() {
109	+	final ExecutorService e = Executors.newSingleThreadExecutor();
110	+	try (PoolCleaner cleaner = cleaner(e)) {
111	+	try {
112	+	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
113	+	shouldThrow();
114	+	} catch (ClassCastException success) {}
115	+	}
116	+	}
117
118	+	/**
119	+	* A new newFixedThreadPool can execute runnables
120	+	*/
121	+	public void testNewFixedThreadPool1() {
122	+	final ExecutorService e = Executors.newFixedThreadPool(2);
123	+	try (PoolCleaner cleaner = cleaner(e)) {
124	+	e.execute(new NoOpRunnable());
125	+	e.execute(new NoOpRunnable());
126	+	e.execute(new NoOpRunnable());
127	+	}
128	+	}
129
130		/**
131	<	*  Test to verify invoke(Executor, Callable) throws
132	<	*  InterruptedException A single use of invoke starts that will
133	<	*  wait long enough for the invoking thread to be interrupted
134	<	*/
135	<	public void testInvoke5(){
136	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
137	<
138	<	final Callable c = new Callable(){
139	<	public Object call(){
140	<	try{
166	<	Executors.invoke(p, new SleepCall());
167	<	fail("should throw");
168	<	}catch(InterruptedException e){}
169	<	catch(RejectedExecutionException e2){}
170	<	catch(ExecutionException e3){}
171	<	return Boolean.TRUE;
172	<	}
173	<	};
131	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
132	>	*/
133	>	public void testNewFixedThreadPool2() {
134	>	final ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
135	>	try (PoolCleaner cleaner = cleaner(e)) {
136	>	e.execute(new NoOpRunnable());
137	>	e.execute(new NoOpRunnable());
138	>	e.execute(new NoOpRunnable());
139	>	}
140	>	}
141
142	+	/**
143	+	* A new newFixedThreadPool with null ThreadFactory throws
144	+	* NullPointerException
145	+	*/
146	+	public void testNewFixedThreadPool3() {
147	+	try {
148	+	ExecutorService unused = Executors.newFixedThreadPool(2, null);
149	+	shouldThrow();
150	+	} catch (NullPointerException success) {}
151	+	}
152
153	<
154	<	Thread t = new Thread(new Runnable(){
155	<	public void run(){
156	<	try{
157	<	c.call();
158	<	}catch(Exception e){}
159	<	}
160	<	});
184	<	try{
185	<	t.start();
186	<	Thread.sleep(SHORT_DELAY_MS);
187	<	t.interrupt();
188	<	t.join();
189	<	}catch(InterruptedException e){
190	<	fail("unexpected exception");
191	<	}
192	<
193	<	p.shutdownNow();
153	>	/**
154	>	* A new newFixedThreadPool with 0 threads throws IllegalArgumentException
155	>	*/
156	>	public void testNewFixedThreadPool4() {
157	>	try {
158	>	ExecutorService unused = Executors.newFixedThreadPool(0);
159	>	shouldThrow();
160	>	} catch (IllegalArgumentException success) {}
161		}
162
163		/**
164	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
165	<	*  An ExecutionException occurs when the underlying Runnable throws
166	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
167	<	*/
168	<	public void testInvoke6(){
169	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
170	<
171	<	try{
172	<	Callable c = new Callable(){
206	<	public Object call(){
207	<	int i = 5/0;
208	<	return Boolean.TRUE;
209	<	}
210	<	};
211	<
212	<	for(int i =0; i < 5; i++){
213	<	Executors.invoke(p,c);
214	<	}
215	<
216	<	fail("should throw");
217	<	}catch(RejectedExecutionException e){}
218	<	catch(InterruptedException e2){}
219	<	catch(ExecutionException e3){}
220	<	p.shutdownNow();
164	>	* An unconfigurable newFixedThreadPool can execute runnables
165	>	*/
166	>	public void testUnconfigurableExecutorService() {
167	>	final ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
168	>	try (PoolCleaner cleaner = cleaner(e)) {
169	>	e.execute(new NoOpRunnable());
170	>	e.execute(new NoOpRunnable());
171	>	e.execute(new NoOpRunnable());
172	>	}
173		}
174
175	<	public void testExecuteRunnable () {
175	>	/**
176	>	* unconfigurableExecutorService(null) throws NPE
177	>	*/
178	>	public void testUnconfigurableExecutorServiceNPE() {
179		try {
180	<	Executor e = new DirectExecutor();
181	<	Task task = new Task();
182	<
183	<	assertFalse("task should not be complete", task.isCompleted());
180	>	ExecutorService unused =
181	>	Executors.unconfigurableExecutorService(null);
182	>	shouldThrow();
183	>	} catch (NullPointerException success) {}
184	>	}
185
186	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
187	<	String result = future.get();
186	>	/**
187	>	* unconfigurableScheduledExecutorService(null) throws NPE
188	>	*/
189	>	public void testUnconfigurableScheduledExecutorServiceNPE() {
190	>	try {
191	>	ExecutorService unused =
192	>	Executors.unconfigurableScheduledExecutorService(null);
193	>	shouldThrow();
194	>	} catch (NullPointerException success) {}
195	>	}
196
197	<	assertTrue("task should be complete", task.isCompleted());
198	<	assertSame("should return test string", TEST_STRING, result);
197	>	/**
198	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
199	>	*/
200	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
201	>	final ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
202	>	try (PoolCleaner cleaner = cleaner(p)) {
203	>	final CountDownLatch proceed = new CountDownLatch(1);
204	>	final Runnable task = new CheckedRunnable() {
205	>	public void realRun() {
206	>	await(proceed);
207	>	}};
208	>	long startTime = System.nanoTime();
209	>	Future<?> f = p.schedule(Executors.callable(task, Boolean.TRUE),
210	>	timeoutMillis(), MILLISECONDS);
211	>	assertFalse(f.isDone());
212	>	proceed.countDown();
213	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
214	>	assertSame(Boolean.TRUE, f.get());
215	>	assertTrue(f.isDone());
216	>	assertFalse(f.isCancelled());
217	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
218		}
219	<	catch (ExecutionException ex) {
220	<	fail("Unexpected exception");
219	>	}
220	>
221	>	/**
222	>	* a newScheduledThreadPool successfully runs delayed task
223	>	*/
224	>	public void testNewScheduledThreadPool() throws Exception {
225	>	final ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
226	>	try (PoolCleaner cleaner = cleaner(p)) {
227	>	final CountDownLatch proceed = new CountDownLatch(1);
228	>	final Runnable task = new CheckedRunnable() {
229	>	public void realRun() {
230	>	await(proceed);
231	>	}};
232	>	long startTime = System.nanoTime();
233	>	Future<?> f = p.schedule(Executors.callable(task, Boolean.TRUE),
234	>	timeoutMillis(), MILLISECONDS);
235	>	assertFalse(f.isDone());
236	>	proceed.countDown();
237	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
238	>	assertSame(Boolean.TRUE, f.get());
239	>	assertTrue(f.isDone());
240	>	assertFalse(f.isCancelled());
241	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
242		}
243	<	catch (InterruptedException ex) {
244	<	fail("Unexpected exception");
243	>	}
244	>
245	>	/**
246	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
247	>	*/
248	>	public void testUnconfigurableScheduledExecutorService() throws Exception {
249	>	final ScheduledExecutorService p =
250	>	Executors.unconfigurableScheduledExecutorService
251	>	(Executors.newScheduledThreadPool(2));
252	>	try (PoolCleaner cleaner = cleaner(p)) {
253	>	final CountDownLatch proceed = new CountDownLatch(1);
254	>	final Runnable task = new CheckedRunnable() {
255	>	public void realRun() {
256	>	await(proceed);
257	>	}};
258	>	long startTime = System.nanoTime();
259	>	Future<?> f = p.schedule(Executors.callable(task, Boolean.TRUE),
260	>	timeoutMillis(), MILLISECONDS);
261	>	assertFalse(f.isDone());
262	>	proceed.countDown();
263	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
264	>	assertSame(Boolean.TRUE, f.get());
265	>	assertTrue(f.isDone());
266	>	assertFalse(f.isCancelled());
267	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
268		}
269		}
270
271	<	public void testInvokeRunnable () {
272	<	try {
273	<	Executor e = new DirectExecutor();
274	<	Task task = new Task();
271	>	/**
272	>	* Future.get on submitted tasks will time out if they compute too long.
273	>	*/
274	>	public void testTimedCallable() throws Exception {
275	>	final ExecutorService[] executors = {
276	>	Executors.newSingleThreadExecutor(),
277	>	Executors.newCachedThreadPool(),
278	>	Executors.newFixedThreadPool(2),
279	>	Executors.newScheduledThreadPool(2),
280	>	};
281	>
282	>	final CountDownLatch done = new CountDownLatch(1);
283	>
284	>	final Runnable sleeper = new CheckedRunnable() {
285	>	public void realRun() throws InterruptedException {
286	>	done.await(LONG_DELAY_MS, MILLISECONDS);
287	>	}};
288	>
289	>	List<Thread> threads = new ArrayList<>();
290	>	for (final ExecutorService executor : executors) {
291	>	threads.add(newStartedThread(new CheckedRunnable() {
292	>	public void realRun() {
293	>	Future<?> future = executor.submit(sleeper);
294	>	assertFutureTimesOut(future);
295	>	}}));
296	>	}
297	>	for (Thread thread : threads)
298	>	awaitTermination(thread);
299	>	done.countDown();
300	>	for (ExecutorService executor : executors)
301	>	joinPool(executor);
302	>	}
303
304	<	assertFalse("task should not be complete", task.isCompleted());
304	>	/**
305	>	* ThreadPoolExecutor using defaultThreadFactory has
306	>	* specified group, priority, daemon status, and name
307	>	*/
308	>	@SuppressWarnings("removal")
309	>	public void testDefaultThreadFactory() throws Exception {
310	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
311	>	final CountDownLatch done = new CountDownLatch(1);
312	>	Runnable r = new CheckedRunnable() {
313	>	public void realRun() {
314	>	try {
315	>	Thread current = Thread.currentThread();
316	>	assertFalse(current.isDaemon());
317	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
318	>	SecurityManager s = System.getSecurityManager();
319	>	assertSame(current.getThreadGroup(),
320	>	(s == null) ? egroup : s.getThreadGroup());
321	>	assertTrue(current.getName().endsWith("thread-1"));
322	>	} catch (SecurityException ok) {
323	>	// Also pass if not allowed to change setting
324	>	}
325	>	done.countDown();
326	>	}};
327	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
328	>	try (PoolCleaner cleaner = cleaner(e)) {
329	>	e.execute(r);
330	>	await(done);
331	>	}
332	>	}
333
334	<	Executors.invoke(e, task);
334	>	/**
335	>	* ThreadPoolExecutor using privilegedThreadFactory has
336	>	* specified group, priority, daemon status, name,
337	>	* access control context and context class loader
338	>	*/
339	>	@SuppressWarnings("removal")
340	>	public void testPrivilegedThreadFactory() throws Exception {
341	>	final CountDownLatch done = new CountDownLatch(1);
342	>	Runnable r = new CheckedRunnable() {
343	>	public void realRun() throws Exception {
344	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
345	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
346	>	final AccessControlContext thisacc = AccessController.getContext();
347	>	Runnable r = new CheckedRunnable() {
348	>	public void realRun() {
349	>	Thread current = Thread.currentThread();
350	>	assertFalse(current.isDaemon());
351	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
352	>	SecurityManager s = System.getSecurityManager();
353	>	assertSame(current.getThreadGroup(),
354	>	(s == null) ? egroup : s.getThreadGroup());
355	>	assertTrue(current.getName().endsWith("thread-1"));
356	>	assertSame(thisccl, current.getContextClassLoader());
357	>	assertEquals(thisacc, AccessController.getContext());
358	>	done.countDown();
359	>	}};
360	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
361	>	try (PoolCleaner cleaner = cleaner(e)) {
362	>	e.execute(r);
363	>	await(done);
364	>	}
365	>	}};
366
367	<	assertTrue("task should be complete", task.isCompleted());
367	>	runWithPermissions(r,
368	>	new RuntimePermission("getClassLoader"),
369	>	new RuntimePermission("setContextClassLoader"),
370	>	new RuntimePermission("modifyThread"));
371	>	}
372	>
373	>	@SuppressWarnings("removal")
374	>	boolean haveCCLPermissions() {
375	>	SecurityManager sm = System.getSecurityManager();
376	>	if (sm != null) {
377	>	try {
378	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
379	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
380	>	} catch (AccessControlException e) {
381	>	return false;
382	>	}
383		}
384	<	catch (ExecutionException ex) {
385	<	fail("Unexpected exception");
384	>	return true;
385	>	}
386	>
387	>	@SuppressWarnings("removal")
388	>	void checkCCL() {
389	>	SecurityManager sm = System.getSecurityManager();
390	>	if (sm != null) {
391	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
392	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
393		}
394	<	catch (InterruptedException ex) {
395	<	fail("Unexpected exception");
394	>	}
395	>
396	>	class CheckCCL implements Callable<Object> {
397	>	public Object call() {
398	>	checkCCL();
399	>	return null;
400		}
401		}
402
403	<	public void testExecuteCallable () {
404	<	try {
405	<	Executor e = new DirectExecutor();
406	<	Future<String> future = Executors.execute(e, new StringTask());
407	<	String result = future.get();
403	>	/**
404	>	* Without class loader permissions, creating
405	>	* privilegedCallableUsingCurrentClassLoader throws ACE
406	>	*/
407	>	@SuppressWarnings("removal")
408	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
409	>	Runnable r = new CheckedRunnable() {
410	>	public void realRun() throws Exception {
411	>	if (System.getSecurityManager() == null)
412	>	return;
413	>	try {
414	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
415	>	shouldThrow();
416	>	} catch (AccessControlException success) {}
417	>	}};
418
419	<	assertSame("should return test string", TEST_STRING, result);
420	<	}
421	<	catch (ExecutionException ex) {
422	<	fail("Unexpected exception");
423	<	}
424	<	catch (InterruptedException ex) {
425	<	fail("Unexpected exception");
426	<	}
419	>	runWithoutPermissions(r);
420	>	}
421	>
422	>	/**
423	>	* With class loader permissions, calling
424	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
425	>	*/
426	>	@SuppressWarnings("removal")
427	>	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
428	>	Runnable r = new CheckedRunnable() {
429	>	public void realRun() throws Exception {
430	>	Executors.privilegedCallableUsingCurrentClassLoader
431	>	(new NoOpCallable())
432	>	.call();
433	>	}};
434	>
435	>	runWithPermissions(r,
436	>	new RuntimePermission("getClassLoader"),
437	>	new RuntimePermission("setContextClassLoader"));
438		}
439
440	<	public void testInvokeCallable () {
440	>	/**
441	>	* Without permissions, calling privilegedCallable throws ACE
442	>	*/
443	>	@SuppressWarnings("removal")
444	>	public void testPrivilegedCallableWithNoPrivs() throws Exception {
445	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
446	>	Executors.privilegedCallable(new CheckCCL());
447	>
448	>	Runnable r = new CheckedRunnable() {
449	>	public void realRun() throws Exception {
450	>	if (System.getSecurityManager() == null)
451	>	return;
452	>	Callable<?> task = Executors.privilegedCallable(new CheckCCL());
453	>	try {
454	>	task.call();
455	>	shouldThrow();
456	>	} catch (AccessControlException success) {}
457	>	}};
458	>
459	>	runWithoutPermissions(r);
460	>
461	>	// It seems rather difficult to test that the
462	>	// AccessControlContext of the privilegedCallable is used
463	>	// instead of its caller.  Below is a failed attempt to do
464	>	// that, which does not work because the AccessController
465	>	// cannot capture the internal state of the current Policy.
466	>	// It would be much more work to differentiate based on,
467	>	// e.g. CodeSource.
468	>
469	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
470	>	//         final Callable[] task = new Callable[1];
471	>
472	>	//         runWithPermissions
473	>	//             (new CheckedRunnable() {
474	>	//                 public void realRun() {
475	>	//                     if (System.getSecurityManager() == null)
476	>	//                         return;
477	>	//                     noprivAcc[0] = AccessController.getContext();
478	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
479	>	//                     try {
480	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
481	>	//                                                           public Void run() {
482	>	//                                                               checkCCL();
483	>	//                                                               return null;
484	>	//                                                           }}, noprivAcc[0]);
485	>	//                         shouldThrow();
486	>	//                     } catch (AccessControlException success) {}
487	>	//                 }});
488	>
489	>	//         runWithPermissions
490	>	//             (new CheckedRunnable() {
491	>	//                 public void realRun() throws Exception {
492	>	//                     if (System.getSecurityManager() == null)
493	>	//                         return;
494	>	//                     // Verify that we have an underprivileged ACC
495	>	//                     try {
496	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
497	>	//                                                           public Void run() {
498	>	//                                                               checkCCL();
499	>	//                                                               return null;
500	>	//                                                           }}, noprivAcc[0]);
501	>	//                         shouldThrow();
502	>	//                     } catch (AccessControlException success) {}
503	>
504	>	//                     try {
505	>	//                         task[0].call();
506	>	//                         shouldThrow();
507	>	//                     } catch (AccessControlException success) {}
508	>	//                 }},
509	>	//              new RuntimePermission("getClassLoader"),
510	>	//              new RuntimePermission("setContextClassLoader"));
511	>	}
512	>
513	>	/**
514	>	* With permissions, calling privilegedCallable succeeds
515	>	*/
516	>	@SuppressWarnings("removal")
517	>	public void testPrivilegedCallableWithPrivs() throws Exception {
518	>	Runnable r = new CheckedRunnable() {
519	>	public void realRun() throws Exception {
520	>	Executors.privilegedCallable(new CheckCCL()).call();
521	>	}};
522	>
523	>	runWithPermissions(r,
524	>	new RuntimePermission("getClassLoader"),
525	>	new RuntimePermission("setContextClassLoader"));
526	>	}
527	>
528	>	/**
529	>	* callable(Runnable) returns null when called
530	>	*/
531	>	public void testCallable1() throws Exception {
532	>	Callable<?> c = Executors.callable(new NoOpRunnable());
533	>	assertNull(c.call());
534	>	}
535	>
536	>	/**
537	>	* callable(Runnable, result) returns result when called
538	>	*/
539	>	public void testCallable2() throws Exception {
540	>	Callable<?> c = Executors.callable(new NoOpRunnable(), one);
541	>	assertSame(one, c.call());
542	>	}
543	>
544	>	/**
545	>	* callable(PrivilegedAction) returns its result when called
546	>	*/
547	>	public void testCallable3() throws Exception {
548	>	Callable<?> c = Executors.callable(new PrivilegedAction() {
549	>	public Object run() { return one; }});
550	>	assertSame(one, c.call());
551	>	}
552	>
553	>	/**
554	>	* callable(PrivilegedExceptionAction) returns its result when called
555	>	*/
556	>	public void testCallable4() throws Exception {
557	>	Callable<?> c = Executors.callable(new PrivilegedExceptionAction() {
558	>	public Object run() { return one; }});
559	>	assertSame(one, c.call());
560	>	}
561	>
562	>	/**
563	>	* callable(null Runnable) throws NPE
564	>	*/
565	>	public void testCallableNPE1() {
566		try {
567	<	Executor e = new DirectExecutor();
568	<	String result = Executors.invoke(e, new StringTask());
567	>	Callable<?> unused = Executors.callable((Runnable) null);
568	>	shouldThrow();
569	>	} catch (NullPointerException success) {}
570	>	}
571
572	<	assertSame("should return test string", TEST_STRING, result);
573	<	}
574	<	catch (ExecutionException ex) {
575	<	fail("Unexpected exception" );
576	<	}
577	<	catch (InterruptedException ex) {
578	<	fail("Unexpected exception");
579	<	}
572	>	/**
573	>	* callable(null, result) throws NPE
574	>	*/
575	>	public void testCallableNPE2() {
576	>	try {
577	>	Callable<?> unused = Executors.callable((Runnable) null, one);
578	>	shouldThrow();
579	>	} catch (NullPointerException success) {}
580		}
581
582	<	private static final String TEST_STRING = "a test string";
582	>	/**
583	>	* callable(null PrivilegedAction) throws NPE
584	>	*/
585	>	public void testCallableNPE3() {
586	>	try {
587	>	Callable<?> unused = Executors.callable((PrivilegedAction) null);
588	>	shouldThrow();
589	>	} catch (NullPointerException success) {}
590	>	}
591
592	<	private static class Task implements Runnable {
593	<	public void run() { completed = true; }
594	<	public boolean isCompleted() { return completed; }
595	<	public void reset() { completed = false; }
596	<	private boolean completed = false;
592	>	/**
593	>	* callable(null PrivilegedExceptionAction) throws NPE
594	>	*/
595	>	public void testCallableNPE4() {
596	>	try {
597	>	Callable<?> unused = Executors.callable((PrivilegedExceptionAction) null);
598	>	shouldThrow();
599	>	} catch (NullPointerException success) {}
600		}
601
602	<	private static class StringTask implements Callable<String> {
603	<	public String call() { return TEST_STRING; }
602	>	/**
603	>	* callable(runnable, x).toString() contains toString of wrapped task
604	>	*/
605	>	public void testCallable_withResult_toString() {
606	>	if (testImplementationDetails) {
607	>	Runnable r = () -> {};
608	>	Callable<String> c = Executors.callable(r, "");
609	>	assertEquals(
610	>	identityString(c) + "[Wrapped task = " + r.toString() + "]",
611	>	c.toString());
612	>	}
613		}
614
615	<	static class DirectExecutor implements Executor {
616	<	public void execute(Runnable r) {
617	<	r.run();
615	>	/**
616	>	* callable(runnable).toString() contains toString of wrapped task
617	>	*/
618	>	public void testCallable_toString() {
619	>	if (testImplementationDetails) {
620	>	Runnable r = () -> {};
621	>	Callable<Object> c = Executors.callable(r);
622	>	assertEquals(
623	>	identityString(c) + "[Wrapped task = " + r.toString() + "]",
624	>	c.toString());
625		}
626		}
627
628	+	/**
629	+	* privilegedCallable(callable).toString() contains toString of wrapped task
630	+	*/
631	+	@SuppressWarnings("removal")
632	+	public void testPrivilegedCallable_toString() {
633	+	if (testImplementationDetails) {
634	+	Callable<String> c = () -> "";
635	+	Callable<String> priv = Executors.privilegedCallable(c);
636	+	assertEquals(
637	+	identityString(priv) + "[Wrapped task = " + c.toString() + "]",
638	+	priv.toString());
639	+	}
640	+	}
641
642	+	/**
643	+	* privilegedCallableUsingCurrentClassLoader(callable).toString()
644	+	* contains toString of wrapped task
645	+	*/
646	+	@SuppressWarnings("removal")
647	+	public void testPrivilegedCallableUsingCurrentClassLoader_toString() {
648	+	if (testImplementationDetails) {
649	+	Callable<String> c = () -> "";
650	+	Callable<String> priv = Executors.privilegedCallableUsingCurrentClassLoader(c);
651	+	assertEquals(
652	+	identityString(priv) + "[Wrapped task = " + c.toString() + "]",
653	+	priv.toString());
654	+	}
655	+	}
656		}

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