test/tck/AbstractExecutorServiceTest.java

/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/publicdomain/zero/1.0/
 * Other contributors include Andrew Wright, Jeffrey Hayes,
 * Pat Fisher, Mike Judd.
 */

import static java.util.concurrent.TimeUnit.MILLISECONDS;

import java.security.PrivilegedAction;
import java.security.PrivilegedExceptionAction;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.AbstractExecutorService;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.Callable;
import java.util.concurrent.CancellationException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;

import junit.framework.Test;
import junit.framework.TestSuite;

public class AbstractExecutorServiceTest extends JSR166TestCase {
    public static void main(String[] args) {
        main(suite(), args);
    }
    public static Test suite() {
        return new TestSuite(AbstractExecutorServiceTest.class);
    }

    /**
     * A no-frills implementation of AbstractExecutorService, designed
     * to test the submit methods only.
     */
    static class DirectExecutorService extends AbstractExecutorService {
        public void execute(Runnable r) { r.run(); }
        public void shutdown() { shutdown = true; }
        public List<Runnable> shutdownNow() {
            shutdown = true;
            return Collections.EMPTY_LIST;
        }
        public boolean isShutdown() { return shutdown; }
        public boolean isTerminated() { return isShutdown(); }
        public boolean awaitTermination(long timeout, TimeUnit unit) {
            return isShutdown();
        }
        private volatile boolean shutdown = false;
    }

    /**
     * execute(runnable) runs it to completion
     */
    public void testExecuteRunnable() throws Exception {
        ExecutorService e = new DirectExecutorService();
        final AtomicBoolean done = new AtomicBoolean(false);
        Future<?> future = e.submit(new CheckedRunnable() {
            public void realRun() {
                done.set(true);
            }});
        assertNull(future.get());
        assertNull(future.get(0, MILLISECONDS));
        assertTrue(done.get());
        assertTrue(future.isDone());
        assertFalse(future.isCancelled());
    }

    /**
     * Completed submit(callable) returns result
     */
    public void testSubmitCallable() throws Exception {
        ExecutorService e = new DirectExecutorService();
        Future<String> future = e.submit(new StringTask());
        String result = future.get();
        assertSame(TEST_STRING, result);
    }

    /**
     * Completed submit(runnable) returns successfully
     */
    public void testSubmitRunnable() throws Exception {
        ExecutorService e = new DirectExecutorService();
        Future<?> future = e.submit(new NoOpRunnable());
        future.get();
        assertTrue(future.isDone());
    }

    /**
     * Completed submit(runnable, result) returns result
     */
    public void testSubmitRunnable2() throws Exception {
        ExecutorService e = new DirectExecutorService();
        Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
        String result = future.get();
        assertSame(TEST_STRING, result);
    }

    /**
     * A submitted privileged action runs to completion
     */
    public void testSubmitPrivilegedAction() throws Exception {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                ExecutorService e = new DirectExecutorService();
                Future future = e.submit(Executors.callable(new PrivilegedAction() {
                    public Object run() {
                        return TEST_STRING;
                    }}));

                assertSame(TEST_STRING, future.get());
            }};

        runWithPermissions(r,
                           new RuntimePermission("getClassLoader"),
                           new RuntimePermission("setContextClassLoader"),
                           new RuntimePermission("modifyThread"));
    }

    /**
     * A submitted privileged exception action runs to completion
     */
    public void testSubmitPrivilegedExceptionAction() throws Exception {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                ExecutorService e = new DirectExecutorService();
                Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
                    public Object run() {
                        return TEST_STRING;
                    }}));

                assertSame(TEST_STRING, future.get());
            }};

        runWithPermissions(r);
    }

    /**
     * A submitted failed privileged exception action reports exception
     */
    public void testSubmitFailedPrivilegedExceptionAction() throws Exception {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                ExecutorService e = new DirectExecutorService();
                Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
                    public Object run() throws Exception {
                        throw new IndexOutOfBoundsException();
                    }}));

                try {
                    future.get();
                    shouldThrow();
                } catch (ExecutionException success) {
                    assertTrue(success.getCause() instanceof IndexOutOfBoundsException);
                }}};

        runWithPermissions(r);
    }

    /**
     * execute(null runnable) throws NPE
     */
    public void testExecuteNullRunnable() {
        ExecutorService e = new DirectExecutorService();
        try {
            e.submit((Runnable) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * submit(null callable) throws NPE
     */
    public void testSubmitNullCallable() {
        ExecutorService e = new DirectExecutorService();
        try {
            e.submit((Callable) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * submit(callable).get() throws InterruptedException if interrupted
     */
    public void testInterruptedSubmit() throws InterruptedException {
        final CountDownLatch submitted    = new CountDownLatch(1);
        final CountDownLatch quittingTime = new CountDownLatch(1);
        final Callable<Void> awaiter = new CheckedCallable<Void>() {
            public Void realCall() throws InterruptedException {
                assertTrue(quittingTime.await(2*LONG_DELAY_MS, MILLISECONDS));
                return null;
            }};
        final ExecutorService p
            = new ThreadPoolExecutor(1,1,60, TimeUnit.SECONDS,
                                     new ArrayBlockingQueue<Runnable>(10));
        try (PoolCleaner cleaner = cleaner(p, quittingTime)) {
            Thread t = newStartedThread(new CheckedInterruptedRunnable() {
                public void realRun() throws Exception {
                    Future<Void> future = p.submit(awaiter);
                    submitted.countDown();
                    future.get();
                }});

            await(submitted);
            t.interrupt();
            awaitTermination(t);
        }
    }

    /**
     * get of submit(callable) throws ExecutionException if callable
     * throws exception
     */
    public void testSubmitEE() throws InterruptedException {
        final ThreadPoolExecutor p =
            new ThreadPoolExecutor(1, 1,
                                   60, TimeUnit.SECONDS,
                                   new ArrayBlockingQueue<Runnable>(10));
        try (PoolCleaner cleaner = cleaner(p)) {
            Callable c = new Callable() {
                public Object call() { throw new ArithmeticException(); }};
            try {
                p.submit(c).get();
                shouldThrow();
            } catch (ExecutionException success) {
                assertTrue(success.getCause() instanceof ArithmeticException);
            }
        }
    }

    /**
     * invokeAny(null) throws NPE
     */
    public void testInvokeAny1() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            try {
                e.invokeAny(null);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * invokeAny(empty collection) throws IAE
     */
    public void testInvokeAny2() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            try {
                e.invokeAny(new ArrayList<Callable<String>>());
                shouldThrow();
            } catch (IllegalArgumentException success) {}
        }
    }

    /**
     * invokeAny(c) throws NPE if c has null elements
     */
    public void testInvokeAny3() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<Long>> l = new ArrayList<>();
            l.add(new Callable<Long>() {
                      public Long call() { throw new ArithmeticException(); }});
            l.add(null);
            try {
                e.invokeAny(l);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * invokeAny(c) throws ExecutionException if no task in c completes
     */
    public void testInvokeAny4() throws InterruptedException {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new NPETask());
            try {
                e.invokeAny(l);
                shouldThrow();
            } catch (ExecutionException success) {
                assertTrue(success.getCause() instanceof NullPointerException);
            }
        }
    }

    /**
     * invokeAny(c) returns result of some task in c if at least one completes
     */
    public void testInvokeAny5() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new StringTask());
            l.add(new StringTask());
            String result = e.invokeAny(l);
            assertSame(TEST_STRING, result);
        }
    }

    /**
     * invokeAll(null) throws NPE
     */
    public void testInvokeAll1() throws InterruptedException {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            try {
                e.invokeAll(null);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * invokeAll(empty collection) returns empty collection
     */
    public void testInvokeAll2() throws InterruptedException {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
            assertTrue(r.isEmpty());
        }
    }

    /**
     * invokeAll(c) throws NPE if c has null elements
     */
    public void testInvokeAll3() throws InterruptedException {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new StringTask());
            l.add(null);
            try {
                e.invokeAll(l);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * get of returned element of invokeAll(c) throws exception on failed task
     */
    public void testInvokeAll4() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new NPETask());
            List<Future<String>> futures = e.invokeAll(l);
            assertEquals(1, futures.size());
            try {
                futures.get(0).get();
                shouldThrow();
            } catch (ExecutionException success) {
                assertTrue(success.getCause() instanceof NullPointerException);
            }
        }
    }

    /**
     * invokeAll(c) returns results of all completed tasks in c
     */
    public void testInvokeAll5() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new StringTask());
            l.add(new StringTask());
            List<Future<String>> futures = e.invokeAll(l);
            assertEquals(2, futures.size());
            for (Future<String> future : futures)
                assertSame(TEST_STRING, future.get());
        }
    }

    /**
     * timed invokeAny(null) throws NPE
     */
    public void testTimedInvokeAny1() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            try {
                e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * timed invokeAny(null time unit) throws NPE
     */
    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new StringTask());
            try {
                e.invokeAny(l, MEDIUM_DELAY_MS, null);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * timed invokeAny(empty collection) throws IAE
     */
    public void testTimedInvokeAny2() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            try {
                e.invokeAny(new ArrayList<Callable<String>>(),
                            MEDIUM_DELAY_MS, MILLISECONDS);
                shouldThrow();
            } catch (IllegalArgumentException success) {}
        }
    }

    /**
     * timed invokeAny(c) throws NPE if c has null elements
     */
    public void testTimedInvokeAny3() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<Long>> l = new ArrayList<>();
            l.add(new Callable<Long>() {
                      public Long call() { throw new ArithmeticException(); }});
            l.add(null);
            try {
                e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * timed invokeAny(c) throws ExecutionException if no task completes
     */
    public void testTimedInvokeAny4() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            long startTime = System.nanoTime();
            List<Callable<String>> l = new ArrayList<>();
            l.add(new NPETask());
            try {
                e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
                shouldThrow();
            } catch (ExecutionException success) {
                assertTrue(success.getCause() instanceof NullPointerException);
            }
            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
        }
    }

    /**
     * timed invokeAny(c) returns result of some task in c
     */
    public void testTimedInvokeAny5() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            long startTime = System.nanoTime();
            List<Callable<String>> l = new ArrayList<>();
            l.add(new StringTask());
            l.add(new StringTask());
            String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
            assertSame(TEST_STRING, result);
            assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
        }
    }

    /**
     * timed invokeAll(null) throws NPE
     */
    public void testTimedInvokeAll1() throws InterruptedException {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            try {
                e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * timed invokeAll(null time unit) throws NPE
     */
    public void testTimedInvokeAllNullTimeUnit() throws InterruptedException {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new StringTask());
            try {
                e.invokeAll(l, MEDIUM_DELAY_MS, null);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * timed invokeAll(empty collection) returns empty collection
     */
    public void testTimedInvokeAll2() throws InterruptedException {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
            assertTrue(r.isEmpty());
        }
    }

    /**
     * timed invokeAll(c) throws NPE if c has null elements
     */
    public void testTimedInvokeAll3() throws InterruptedException {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new StringTask());
            l.add(null);
            try {
                e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
                shouldThrow();
            } catch (NullPointerException success) {}
        }
    }

    /**
     * get of returned element of invokeAll(c) throws exception on failed task
     */
    public void testTimedInvokeAll4() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new NPETask());
            List<Future<String>> futures =
                e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
            assertEquals(1, futures.size());
            try {
                futures.get(0).get();
                shouldThrow();
            } catch (ExecutionException success) {
                assertTrue(success.getCause() instanceof NullPointerException);
            }
        }
    }

    /**
     * timed invokeAll(c) returns results of all completed tasks in c
     */
    public void testTimedInvokeAll5() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            List<Callable<String>> l = new ArrayList<>();
            l.add(new StringTask());
            l.add(new StringTask());
            List<Future<String>> futures =
                e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
            assertEquals(2, futures.size());
            for (Future<String> future : futures)
                assertSame(TEST_STRING, future.get());
        }
    }

    /**
     * timed invokeAll cancels tasks not completed by timeout
     */
    public void testTimedInvokeAll6() throws Exception {
        final ExecutorService e = new DirectExecutorService();
        try (PoolCleaner cleaner = cleaner(e)) {
            for (long timeout = timeoutMillis();;) {
                List<Callable<String>> tasks = new ArrayList<>();
                tasks.add(new StringTask("0"));
                tasks.add(Executors.callable(possiblyInterruptedRunnable(timeout),
                                             TEST_STRING));
                tasks.add(new StringTask("2"));
                long startTime = System.nanoTime();
                List<Future<String>> futures =
                    e.invokeAll(tasks, timeout, MILLISECONDS);
                assertEquals(tasks.size(), futures.size());
                assertTrue(millisElapsedSince(startTime) >= timeout);
                for (Future future : futures)
                    assertTrue(future.isDone());
                try {
                    assertEquals("0", futures.get(0).get());
                    assertEquals(TEST_STRING, futures.get(1).get());
                } catch (CancellationException retryWithLongerTimeout) {
                    // unusual delay before starting second task
                    timeout *= 2;
                    if (timeout >= LONG_DELAY_MS / 2)
                        fail("expected exactly one task to be cancelled");
                    continue;
                }
                assertTrue(futures.get(2).isCancelled());
                break;
            }
        }
    }

}
Revision:	1.45
Committed:	Wed Jan 4 06:09:58 2017 UTC (7 years, 4 months ago) by jsr166
Branch:	MAIN
Changes since 1.44:	+14 -14 lines
Log Message:	convert to Diamond
#	Content
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/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 java.security.PrivilegedAction;
12	import java.security.PrivilegedExceptionAction;
13	import java.util.ArrayList;
14	import java.util.Collections;
15	import java.util.List;
16	import java.util.concurrent.AbstractExecutorService;
17	import java.util.concurrent.ArrayBlockingQueue;
18	import java.util.concurrent.Callable;
19	import java.util.concurrent.CancellationException;
20	import java.util.concurrent.CountDownLatch;
21	import java.util.concurrent.ExecutionException;
22	import java.util.concurrent.Executors;
23	import java.util.concurrent.ExecutorService;
24	import java.util.concurrent.Future;
25	import java.util.concurrent.ThreadPoolExecutor;
26	import java.util.concurrent.TimeUnit;
27	import java.util.concurrent.atomic.AtomicBoolean;
28
29	import junit.framework.Test;
30	import junit.framework.TestSuite;
31
32	public class AbstractExecutorServiceTest extends JSR166TestCase {
33	public static void main(String[] args) {
34	main(suite(), args);
35	}
36	public static Test suite() {
37	return new TestSuite(AbstractExecutorServiceTest.class);
38	}
39
40	/**
41	* A no-frills implementation of AbstractExecutorService, designed
42	* to test the submit methods only.
43	*/
44	static class DirectExecutorService extends AbstractExecutorService {
45	public void execute(Runnable r) { r.run(); }
46	public void shutdown() { shutdown = true; }
47	public List<Runnable> shutdownNow() {
48	shutdown = true;
49	return Collections.EMPTY_LIST;
50	}
51	public boolean isShutdown() { return shutdown; }
52	public boolean isTerminated() { return isShutdown(); }
53	public boolean awaitTermination(long timeout, TimeUnit unit) {
54	return isShutdown();
55	}
56	private volatile boolean shutdown = false;
57	}
58
59	/**
60	* execute(runnable) runs it to completion
61	*/
62	public void testExecuteRunnable() throws Exception {
63	ExecutorService e = new DirectExecutorService();
64	final AtomicBoolean done = new AtomicBoolean(false);
65	Future<?> future = e.submit(new CheckedRunnable() {
66	public void realRun() {
67	done.set(true);
68	}});
69	assertNull(future.get());
70	assertNull(future.get(0, MILLISECONDS));
71	assertTrue(done.get());
72	assertTrue(future.isDone());
73	assertFalse(future.isCancelled());
74	}
75
76	/**
77	* Completed submit(callable) returns result
78	*/
79	public void testSubmitCallable() throws Exception {
80	ExecutorService e = new DirectExecutorService();
81	Future<String> future = e.submit(new StringTask());
82	String result = future.get();
83	assertSame(TEST_STRING, result);
84	}
85
86	/**
87	* Completed submit(runnable) returns successfully
88	*/
89	public void testSubmitRunnable() throws Exception {
90	ExecutorService e = new DirectExecutorService();
91	Future<?> future = e.submit(new NoOpRunnable());
92	future.get();
93	assertTrue(future.isDone());
94	}
95
96	/**
97	* Completed submit(runnable, result) returns result
98	*/
99	public void testSubmitRunnable2() throws Exception {
100	ExecutorService e = new DirectExecutorService();
101	Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
102	String result = future.get();
103	assertSame(TEST_STRING, result);
104	}
105
106	/**
107	* A submitted privileged action runs to completion
108	*/
109	public void testSubmitPrivilegedAction() throws Exception {
110	Runnable r = new CheckedRunnable() {
111	public void realRun() throws Exception {
112	ExecutorService e = new DirectExecutorService();
113	Future future = e.submit(Executors.callable(new PrivilegedAction() {
114	public Object run() {
115	return TEST_STRING;
116	}}));
117
118	assertSame(TEST_STRING, future.get());
119	}};
120
121	runWithPermissions(r,
122	new RuntimePermission("getClassLoader"),
123	new RuntimePermission("setContextClassLoader"),
124	new RuntimePermission("modifyThread"));
125	}
126
127	/**
128	* A submitted privileged exception action runs to completion
129	*/
130	public void testSubmitPrivilegedExceptionAction() throws Exception {
131	Runnable r = new CheckedRunnable() {
132	public void realRun() throws Exception {
133	ExecutorService e = new DirectExecutorService();
134	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
135	public Object run() {
136	return TEST_STRING;
137	}}));
138
139	assertSame(TEST_STRING, future.get());
140	}};
141
142	runWithPermissions(r);
143	}
144
145	/**
146	* A submitted failed privileged exception action reports exception
147	*/
148	public void testSubmitFailedPrivilegedExceptionAction() throws Exception {
149	Runnable r = new CheckedRunnable() {
150	public void realRun() throws Exception {
151	ExecutorService e = new DirectExecutorService();
152	Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() {
153	public Object run() throws Exception {
154	throw new IndexOutOfBoundsException();
155	}}));
156
157	try {
158	future.get();
159	shouldThrow();
160	} catch (ExecutionException success) {
161	assertTrue(success.getCause() instanceof IndexOutOfBoundsException);
162	}}};
163
164	runWithPermissions(r);
165	}
166
167	/**
168	* execute(null runnable) throws NPE
169	*/
170	public void testExecuteNullRunnable() {
171	ExecutorService e = new DirectExecutorService();
172	try {
173	e.submit((Runnable) null);
174	shouldThrow();
175	} catch (NullPointerException success) {}
176	}
177
178	/**
179	* submit(null callable) throws NPE
180	*/
181	public void testSubmitNullCallable() {
182	ExecutorService e = new DirectExecutorService();
183	try {
184	e.submit((Callable) null);
185	shouldThrow();
186	} catch (NullPointerException success) {}
187	}
188
189	/**
190	* submit(callable).get() throws InterruptedException if interrupted
191	*/
192	public void testInterruptedSubmit() throws InterruptedException {
193	final CountDownLatch submitted = new CountDownLatch(1);
194	final CountDownLatch quittingTime = new CountDownLatch(1);
195	final Callable<Void> awaiter = new CheckedCallable<Void>() {
196	public Void realCall() throws InterruptedException {
197	assertTrue(quittingTime.await(2*LONG_DELAY_MS, MILLISECONDS));
198	return null;
199	}};
200	final ExecutorService p
201	= new ThreadPoolExecutor(1,1,60, TimeUnit.SECONDS,
202	new ArrayBlockingQueue<Runnable>(10));
203	try (PoolCleaner cleaner = cleaner(p, quittingTime)) {
204	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
205	public void realRun() throws Exception {
206	Future<Void> future = p.submit(awaiter);
207	submitted.countDown();
208	future.get();
209	}});
210
211	await(submitted);
212	t.interrupt();
213	awaitTermination(t);
214	}
215	}
216
217	/**
218	* get of submit(callable) throws ExecutionException if callable
219	* throws exception
220	*/
221	public void testSubmitEE() throws InterruptedException {
222	final ThreadPoolExecutor p =
223	new ThreadPoolExecutor(1, 1,
224	60, TimeUnit.SECONDS,
225	new ArrayBlockingQueue<Runnable>(10));
226	try (PoolCleaner cleaner = cleaner(p)) {
227	Callable c = new Callable() {
228	public Object call() { throw new ArithmeticException(); }};
229	try {
230	p.submit(c).get();
231	shouldThrow();
232	} catch (ExecutionException success) {
233	assertTrue(success.getCause() instanceof ArithmeticException);
234	}
235	}
236	}
237
238	/**
239	* invokeAny(null) throws NPE
240	*/
241	public void testInvokeAny1() throws Exception {
242	final ExecutorService e = new DirectExecutorService();
243	try (PoolCleaner cleaner = cleaner(e)) {
244	try {
245	e.invokeAny(null);
246	shouldThrow();
247	} catch (NullPointerException success) {}
248	}
249	}
250
251	/**
252	* invokeAny(empty collection) throws IAE
253	*/
254	public void testInvokeAny2() throws Exception {
255	final ExecutorService e = new DirectExecutorService();
256	try (PoolCleaner cleaner = cleaner(e)) {
257	try {
258	e.invokeAny(new ArrayList<Callable<String>>());
259	shouldThrow();
260	} catch (IllegalArgumentException success) {}
261	}
262	}
263
264	/**
265	* invokeAny(c) throws NPE if c has null elements
266	*/
267	public void testInvokeAny3() throws Exception {
268	final ExecutorService e = new DirectExecutorService();
269	try (PoolCleaner cleaner = cleaner(e)) {
270	List<Callable<Long>> l = new ArrayList<>();
271	l.add(new Callable<Long>() {
272	public Long call() { throw new ArithmeticException(); }});
273	l.add(null);
274	try {
275	e.invokeAny(l);
276	shouldThrow();
277	} catch (NullPointerException success) {}
278	}
279	}
280
281	/**
282	* invokeAny(c) throws ExecutionException if no task in c completes
283	*/
284	public void testInvokeAny4() throws InterruptedException {
285	final ExecutorService e = new DirectExecutorService();
286	try (PoolCleaner cleaner = cleaner(e)) {
287	List<Callable<String>> l = new ArrayList<>();
288	l.add(new NPETask());
289	try {
290	e.invokeAny(l);
291	shouldThrow();
292	} catch (ExecutionException success) {
293	assertTrue(success.getCause() instanceof NullPointerException);
294	}
295	}
296	}
297
298	/**
299	* invokeAny(c) returns result of some task in c if at least one completes
300	*/
301	public void testInvokeAny5() throws Exception {
302	final ExecutorService e = new DirectExecutorService();
303	try (PoolCleaner cleaner = cleaner(e)) {
304	List<Callable<String>> l = new ArrayList<>();
305	l.add(new StringTask());
306	l.add(new StringTask());
307	String result = e.invokeAny(l);
308	assertSame(TEST_STRING, result);
309	}
310	}
311
312	/**
313	* invokeAll(null) throws NPE
314	*/
315	public void testInvokeAll1() throws InterruptedException {
316	final ExecutorService e = new DirectExecutorService();
317	try (PoolCleaner cleaner = cleaner(e)) {
318	try {
319	e.invokeAll(null);
320	shouldThrow();
321	} catch (NullPointerException success) {}
322	}
323	}
324
325	/**
326	* invokeAll(empty collection) returns empty collection
327	*/
328	public void testInvokeAll2() throws InterruptedException {
329	final ExecutorService e = new DirectExecutorService();
330	try (PoolCleaner cleaner = cleaner(e)) {
331	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
332	assertTrue(r.isEmpty());
333	}
334	}
335
336	/**
337	* invokeAll(c) throws NPE if c has null elements
338	*/
339	public void testInvokeAll3() throws InterruptedException {
340	final ExecutorService e = new DirectExecutorService();
341	try (PoolCleaner cleaner = cleaner(e)) {
342	List<Callable<String>> l = new ArrayList<>();
343	l.add(new StringTask());
344	l.add(null);
345	try {
346	e.invokeAll(l);
347	shouldThrow();
348	} catch (NullPointerException success) {}
349	}
350	}
351
352	/**
353	* get of returned element of invokeAll(c) throws exception on failed task
354	*/
355	public void testInvokeAll4() throws Exception {
356	final ExecutorService e = new DirectExecutorService();
357	try (PoolCleaner cleaner = cleaner(e)) {
358	List<Callable<String>> l = new ArrayList<>();
359	l.add(new NPETask());
360	List<Future<String>> futures = e.invokeAll(l);
361	assertEquals(1, futures.size());
362	try {
363	futures.get(0).get();
364	shouldThrow();
365	} catch (ExecutionException success) {
366	assertTrue(success.getCause() instanceof NullPointerException);
367	}
368	}
369	}
370
371	/**
372	* invokeAll(c) returns results of all completed tasks in c
373	*/
374	public void testInvokeAll5() throws Exception {
375	final ExecutorService e = new DirectExecutorService();
376	try (PoolCleaner cleaner = cleaner(e)) {
377	List<Callable<String>> l = new ArrayList<>();
378	l.add(new StringTask());
379	l.add(new StringTask());
380	List<Future<String>> futures = e.invokeAll(l);
381	assertEquals(2, futures.size());
382	for (Future<String> future : futures)
383	assertSame(TEST_STRING, future.get());
384	}
385	}
386
387	/**
388	* timed invokeAny(null) throws NPE
389	*/
390	public void testTimedInvokeAny1() throws Exception {
391	final ExecutorService e = new DirectExecutorService();
392	try (PoolCleaner cleaner = cleaner(e)) {
393	try {
394	e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
395	shouldThrow();
396	} catch (NullPointerException success) {}
397	}
398	}
399
400	/**
401	* timed invokeAny(null time unit) throws NPE
402	*/
403	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
404	final ExecutorService e = new DirectExecutorService();
405	try (PoolCleaner cleaner = cleaner(e)) {
406	List<Callable<String>> l = new ArrayList<>();
407	l.add(new StringTask());
408	try {
409	e.invokeAny(l, MEDIUM_DELAY_MS, null);
410	shouldThrow();
411	} catch (NullPointerException success) {}
412	}
413	}
414
415	/**
416	* timed invokeAny(empty collection) throws IAE
417	*/
418	public void testTimedInvokeAny2() throws Exception {
419	final ExecutorService e = new DirectExecutorService();
420	try (PoolCleaner cleaner = cleaner(e)) {
421	try {
422	e.invokeAny(new ArrayList<Callable<String>>(),
423	MEDIUM_DELAY_MS, MILLISECONDS);
424	shouldThrow();
425	} catch (IllegalArgumentException success) {}
426	}
427	}
428
429	/**
430	* timed invokeAny(c) throws NPE if c has null elements
431	*/
432	public void testTimedInvokeAny3() throws Exception {
433	final ExecutorService e = new DirectExecutorService();
434	try (PoolCleaner cleaner = cleaner(e)) {
435	List<Callable<Long>> l = new ArrayList<>();
436	l.add(new Callable<Long>() {
437	public Long call() { throw new ArithmeticException(); }});
438	l.add(null);
439	try {
440	e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
441	shouldThrow();
442	} catch (NullPointerException success) {}
443	}
444	}
445
446	/**
447	* timed invokeAny(c) throws ExecutionException if no task completes
448	*/
449	public void testTimedInvokeAny4() throws Exception {
450	final ExecutorService e = new DirectExecutorService();
451	try (PoolCleaner cleaner = cleaner(e)) {
452	long startTime = System.nanoTime();
453	List<Callable<String>> l = new ArrayList<>();
454	l.add(new NPETask());
455	try {
456	e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
457	shouldThrow();
458	} catch (ExecutionException success) {
459	assertTrue(success.getCause() instanceof NullPointerException);
460	}
461	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
462	}
463	}
464
465	/**
466	* timed invokeAny(c) returns result of some task in c
467	*/
468	public void testTimedInvokeAny5() throws Exception {
469	final ExecutorService e = new DirectExecutorService();
470	try (PoolCleaner cleaner = cleaner(e)) {
471	long startTime = System.nanoTime();
472	List<Callable<String>> l = new ArrayList<>();
473	l.add(new StringTask());
474	l.add(new StringTask());
475	String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
476	assertSame(TEST_STRING, result);
477	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
478	}
479	}
480
481	/**
482	* timed invokeAll(null) throws NPE
483	*/
484	public void testTimedInvokeAll1() throws InterruptedException {
485	final ExecutorService e = new DirectExecutorService();
486	try (PoolCleaner cleaner = cleaner(e)) {
487	try {
488	e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
489	shouldThrow();
490	} catch (NullPointerException success) {}
491	}
492	}
493
494	/**
495	* timed invokeAll(null time unit) throws NPE
496	*/
497	public void testTimedInvokeAllNullTimeUnit() throws InterruptedException {
498	final ExecutorService e = new DirectExecutorService();
499	try (PoolCleaner cleaner = cleaner(e)) {
500	List<Callable<String>> l = new ArrayList<>();
501	l.add(new StringTask());
502	try {
503	e.invokeAll(l, MEDIUM_DELAY_MS, null);
504	shouldThrow();
505	} catch (NullPointerException success) {}
506	}
507	}
508
509	/**
510	* timed invokeAll(empty collection) returns empty collection
511	*/
512	public void testTimedInvokeAll2() throws InterruptedException {
513	final ExecutorService e = new DirectExecutorService();
514	try (PoolCleaner cleaner = cleaner(e)) {
515	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
516	assertTrue(r.isEmpty());
517	}
518	}
519
520	/**
521	* timed invokeAll(c) throws NPE if c has null elements
522	*/
523	public void testTimedInvokeAll3() throws InterruptedException {
524	final ExecutorService e = new DirectExecutorService();
525	try (PoolCleaner cleaner = cleaner(e)) {
526	List<Callable<String>> l = new ArrayList<>();
527	l.add(new StringTask());
528	l.add(null);
529	try {
530	e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
531	shouldThrow();
532	} catch (NullPointerException success) {}
533	}
534	}
535
536	/**
537	* get of returned element of invokeAll(c) throws exception on failed task
538	*/
539	public void testTimedInvokeAll4() throws Exception {
540	final ExecutorService e = new DirectExecutorService();
541	try (PoolCleaner cleaner = cleaner(e)) {
542	List<Callable<String>> l = new ArrayList<>();
543	l.add(new NPETask());
544	List<Future<String>> futures =
545	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
546	assertEquals(1, futures.size());
547	try {
548	futures.get(0).get();
549	shouldThrow();
550	} catch (ExecutionException success) {
551	assertTrue(success.getCause() instanceof NullPointerException);
552	}
553	}
554	}
555
556	/**
557	* timed invokeAll(c) returns results of all completed tasks in c
558	*/
559	public void testTimedInvokeAll5() throws Exception {
560	final ExecutorService e = new DirectExecutorService();
561	try (PoolCleaner cleaner = cleaner(e)) {
562	List<Callable<String>> l = new ArrayList<>();
563	l.add(new StringTask());
564	l.add(new StringTask());
565	List<Future<String>> futures =
566	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
567	assertEquals(2, futures.size());
568	for (Future<String> future : futures)
569	assertSame(TEST_STRING, future.get());
570	}
571	}
572
573	/**
574	* timed invokeAll cancels tasks not completed by timeout
575	*/
576	public void testTimedInvokeAll6() throws Exception {
577	final ExecutorService e = new DirectExecutorService();
578	try (PoolCleaner cleaner = cleaner(e)) {
579	for (long timeout = timeoutMillis();;) {
580	List<Callable<String>> tasks = new ArrayList<>();
581	tasks.add(new StringTask("0"));
582	tasks.add(Executors.callable(possiblyInterruptedRunnable(timeout),
583	TEST_STRING));
584	tasks.add(new StringTask("2"));
585	long startTime = System.nanoTime();
586	List<Future<String>> futures =
587	e.invokeAll(tasks, timeout, MILLISECONDS);
588	assertEquals(tasks.size(), futures.size());
589	assertTrue(millisElapsedSince(startTime) >= timeout);
590	for (Future future : futures)
591	assertTrue(future.isDone());
592	try {
593	assertEquals("0", futures.get(0).get());
594	assertEquals(TEST_STRING, futures.get(1).get());
595	} catch (CancellationException retryWithLongerTimeout) {
596	// unusual delay before starting second task
597	timeout *= 2;
598	if (timeout >= LONG_DELAY_MS / 2)
599	fail("expected exactly one task to be cancelled");
600	continue;
601	}
602	assertTrue(futures.get(2).isCancelled());
603	break;
604	}
605	}
606	}
607
608	}