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 {
                quittingTime.await();
                return null;
            }};
        final ExecutorService p
            = new ThreadPoolExecutor(1,1,60, TimeUnit.SECONDS,
                                     new ArrayBlockingQueue<Runnable>(10));
        try (PoolCleaner cleaner = cleaner(p)) {
            Thread t = new Thread(new CheckedInterruptedRunnable() {
                public void realRun() throws Exception {
                    Future<Void> future = p.submit(awaiter);
                    submitted.countDown();
                    future.get();
                }});
            t.start();
            submitted.await();
            t.interrupt();
            t.join();
            quittingTime.countDown();
        }
    }

    /**
     * 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<Callable<Long>>();
            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<Callable<String>>();
            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<Callable<String>>();
            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<Callable<String>>();
            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<Callable<String>>();
            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<Callable<String>>();
            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<Callable<String>>();
            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<Callable<Long>>();
            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)) {
            List<Callable<String>> l = new ArrayList<Callable<String>>();
            l.add(new NPETask());
            try {
                e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
                shouldThrow();
            } catch (ExecutionException success) {
                assertTrue(success.getCause() instanceof NullPointerException);
            }
        }
    }

    /**
     * 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)) {
            List<Callable<String>> l = new ArrayList<Callable<String>>();
            l.add(new StringTask());
            l.add(new StringTask());
            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
            assertSame(TEST_STRING, result);
        }
    }

    /**
     * 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<Callable<String>>();
            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<Callable<String>>();
            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<Callable<String>>();
            l.add(new NPETask());
            List<Future<String>> futures =
                e.invokeAll(l, MEDIUM_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<Callable<String>>();
            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:	1.40
Committed:	Sun Oct 4 18:18:48 2015 UTC (8 years, 7 months ago) by jsr166
Branch:	MAIN
Changes since 1.39:	+143 -175 lines
Log Message:	PoolCleaning
#	User	Rev	Content
1	tim	1.1	/*
2	dl	1.10	* 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	jsr166	1.30	* http://creativecommons.org/publicdomain/zero/1.0/
5	jsr166	1.16	* Other contributors include Andrew Wright, Jeffrey Hayes,
6			* Pat Fisher, Mike Judd.
7	tim	1.1	*/
8
9	jsr166	1.35	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	jsr166	1.38	import java.util.concurrent.CancellationException;
20	jsr166	1.35	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	jsr166	1.32	import java.util.concurrent.atomic.AtomicBoolean;
28	jsr166	1.35
29			import junit.framework.Test;
30			import junit.framework.TestSuite;
31	tim	1.1
32	jsr166	1.18	public class AbstractExecutorServiceTest extends JSR166TestCase {
33	tim	1.1	public static void main(String[] args) {
34	jsr166	1.37	main(suite(), args);
35	tim	1.1	}
36			public static Test suite() {
37	dl	1.6	return new TestSuite(AbstractExecutorServiceTest.class);
38	tim	1.1	}
39
40	jsr166	1.16	/**
41	tim	1.1	* A no-frills implementation of AbstractExecutorService, designed
42	dl	1.6	* to test the submit methods only.
43	tim	1.1	*/
44			static class DirectExecutorService extends AbstractExecutorService {
45			public void execute(Runnable r) { r.run(); }
46			public void shutdown() { shutdown = true; }
47	jsr166	1.26	public List<Runnable> shutdownNow() {
48			shutdown = true;
49			return Collections.EMPTY_LIST;
50			}
51	tim	1.1	public boolean isShutdown() { return shutdown; }
52			public boolean isTerminated() { return isShutdown(); }
53	jsr166	1.26	public boolean awaitTermination(long timeout, TimeUnit unit) {
54			return isShutdown();
55			}
56	tim	1.1	private volatile boolean shutdown = false;
57			}
58
59			/**
60	dl	1.12	* execute(runnable) runs it to completion
61	tim	1.1	*/
62	jsr166	1.19	public void testExecuteRunnable() throws Exception {
63			ExecutorService e = new DirectExecutorService();
64	jsr166	1.32	final AtomicBoolean done = new AtomicBoolean(false);
65	jsr166	1.34	Future<?> future = e.submit(new CheckedRunnable() {
66	jsr166	1.32	public void realRun() {
67			done.set(true);
68	jsr166	1.34	}});
69	jsr166	1.32	assertNull(future.get());
70			assertNull(future.get(0, MILLISECONDS));
71			assertTrue(done.get());
72			assertTrue(future.isDone());
73			assertFalse(future.isCancelled());
74	tim	1.1	}
75
76			/**
77	dl	1.12	* Completed submit(callable) returns result
78	tim	1.1	*/
79	jsr166	1.19	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	tim	1.1	}
85
86	dl	1.6	/**
87	dl	1.12	* Completed submit(runnable) returns successfully
88	dl	1.6	*/
89	jsr166	1.19	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	dl	1.6	}
95
96			/**
97	dl	1.12	* Completed submit(runnable, result) returns result
98	dl	1.6	*/
99	jsr166	1.19	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	dl	1.6	}
105
106	tim	1.1	/**
107	jsr166	1.23	* A submitted privileged action runs to completion
108	tim	1.1	*/
109	jsr166	1.19	public void testSubmitPrivilegedAction() throws Exception {
110	jsr166	1.23	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	tim	1.1	public Object run() {
115			return TEST_STRING;
116	dl	1.5	}}));
117	tim	1.1
118	jsr166	1.23	assertSame(TEST_STRING, future.get());
119			}};
120
121			runWithPermissions(r,
122			new RuntimePermission("getClassLoader"),
123			new RuntimePermission("setContextClassLoader"),
124			new RuntimePermission("modifyThread"));
125	tim	1.1	}
126
127			/**
128	jsr166	1.23	* A submitted privileged exception action runs to completion
129	tim	1.1	*/
130	jsr166	1.19	public void testSubmitPrivilegedExceptionAction() throws Exception {
131	jsr166	1.23	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	tim	1.1	public Object run() {
136			return TEST_STRING;
137	dl	1.5	}}));
138	tim	1.1
139	jsr166	1.23	assertSame(TEST_STRING, future.get());
140			}};
141
142			runWithPermissions(r);
143	tim	1.1	}
144
145			/**
146	dl	1.12	* A submitted failed privileged exception action reports exception
147	tim	1.1	*/
148	jsr166	1.19	public void testSubmitFailedPrivilegedExceptionAction() throws Exception {
149	jsr166	1.23	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	tim	1.1	public Object run() throws Exception {
154			throw new IndexOutOfBoundsException();
155	dl	1.5	}}));
156	tim	1.1
157	jsr166	1.23	try {
158			future.get();
159			shouldThrow();
160			} catch (ExecutionException success) {
161			assertTrue(success.getCause() instanceof IndexOutOfBoundsException);
162			}}};
163
164			runWithPermissions(r);
165	tim	1.1	}
166
167			/**
168	dl	1.12	* execute(null runnable) throws NPE
169	tim	1.1	*/
170			public void testExecuteNullRunnable() {
171	jsr166	1.36	ExecutorService e = new DirectExecutorService();
172	tim	1.1	try {
173	jsr166	1.19	e.submit((Runnable) null);
174	tim	1.1	shouldThrow();
175	jsr166	1.19	} catch (NullPointerException success) {}
176	tim	1.1	}
177
178			/**
179	dl	1.12	* submit(null callable) throws NPE
180	tim	1.1	*/
181	dl	1.6	public void testSubmitNullCallable() {
182	jsr166	1.36	ExecutorService e = new DirectExecutorService();
183	tim	1.1	try {
184	jsr166	1.19	e.submit((Callable) null);
185	tim	1.1	shouldThrow();
186	jsr166	1.19	} catch (NullPointerException success) {}
187	tim	1.1	}
188
189			/**
190	jsr166	1.25	* submit(callable).get() throws InterruptedException if interrupted
191	tim	1.1	*/
192	jsr166	1.19	public void testInterruptedSubmit() throws InterruptedException {
193	jsr166	1.25	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			quittingTime.await();
198			return null;
199			}};
200	jsr166	1.40	final ExecutorService p
201			= new ThreadPoolExecutor(1,1,60, TimeUnit.SECONDS,
202			new ArrayBlockingQueue<Runnable>(10));
203			try (PoolCleaner cleaner = cleaner(p)) {
204	jsr166	1.25	Thread t = new Thread(new CheckedInterruptedRunnable() {
205			public void realRun() throws Exception {
206			Future<Void> future = p.submit(awaiter);
207			submitted.countDown();
208			future.get();
209			}});
210			t.start();
211			submitted.await();
212			t.interrupt();
213			t.join();
214			quittingTime.countDown();
215			}
216	tim	1.1	}
217
218			/**
219	jsr166	1.27	* get of submit(callable) throws ExecutionException if callable
220			* throws exception
221	tim	1.1	*/
222	jsr166	1.19	public void testSubmitEE() throws InterruptedException {
223	jsr166	1.40	final ThreadPoolExecutor p =
224	jsr166	1.19	new ThreadPoolExecutor(1, 1,
225			60, TimeUnit.SECONDS,
226			new ArrayBlockingQueue<Runnable>(10));
227	jsr166	1.40	try (PoolCleaner cleaner = cleaner(p)) {
228			Callable c = new Callable() {
229			public Object call() { throw new ArithmeticException(); }};
230			try {
231			p.submit(c).get();
232			shouldThrow();
233			} catch (ExecutionException success) {
234			assertTrue(success.getCause() instanceof ArithmeticException);
235			}
236	tim	1.1	}
237	dl	1.6	}
238
239			/**
240			* invokeAny(null) throws NPE
241			*/
242	jsr166	1.28	public void testInvokeAny1() throws Exception {
243	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
244			try (PoolCleaner cleaner = cleaner(e)) {
245			try {
246			e.invokeAny(null);
247			shouldThrow();
248			} catch (NullPointerException success) {}
249	dl	1.6	}
250			}
251
252			/**
253			* invokeAny(empty collection) throws IAE
254			*/
255	jsr166	1.28	public void testInvokeAny2() throws Exception {
256	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
257			try (PoolCleaner cleaner = cleaner(e)) {
258			try {
259			e.invokeAny(new ArrayList<Callable<String>>());
260			shouldThrow();
261			} catch (IllegalArgumentException success) {}
262	dl	1.6	}
263			}
264
265			/**
266			* invokeAny(c) throws NPE if c has null elements
267			*/
268	jsr166	1.19	public void testInvokeAny3() throws Exception {
269	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
270			try (PoolCleaner cleaner = cleaner(e)) {
271			List<Callable<Long>> l = new ArrayList<Callable<Long>>();
272			l.add(new Callable<Long>() {
273			public Long call() { throw new ArithmeticException(); }});
274			l.add(null);
275			try {
276			e.invokeAny(l);
277			shouldThrow();
278			} catch (NullPointerException success) {}
279	dl	1.6	}
280			}
281
282			/**
283	dl	1.12	* invokeAny(c) throws ExecutionException if no task in c completes
284	dl	1.6	*/
285	jsr166	1.19	public void testInvokeAny4() throws InterruptedException {
286	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
287			try (PoolCleaner cleaner = cleaner(e)) {
288			List<Callable<String>> l = new ArrayList<Callable<String>>();
289			l.add(new NPETask());
290			try {
291			e.invokeAny(l);
292			shouldThrow();
293			} catch (ExecutionException success) {
294			assertTrue(success.getCause() instanceof NullPointerException);
295			}
296	dl	1.6	}
297			}
298
299			/**
300	dl	1.12	* invokeAny(c) returns result of some task in c if at least one completes
301	dl	1.6	*/
302	jsr166	1.19	public void testInvokeAny5() throws Exception {
303	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
304			try (PoolCleaner cleaner = cleaner(e)) {
305	jsr166	1.22	List<Callable<String>> l = new ArrayList<Callable<String>>();
306	dl	1.6	l.add(new StringTask());
307			l.add(new StringTask());
308			String result = e.invokeAny(l);
309			assertSame(TEST_STRING, result);
310			}
311			}
312
313			/**
314			* invokeAll(null) throws NPE
315			*/
316	jsr166	1.19	public void testInvokeAll1() throws InterruptedException {
317	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
318			try (PoolCleaner cleaner = cleaner(e)) {
319			try {
320			e.invokeAll(null);
321			shouldThrow();
322			} catch (NullPointerException success) {}
323	dl	1.6	}
324			}
325
326			/**
327			* invokeAll(empty collection) returns empty collection
328			*/
329	jsr166	1.19	public void testInvokeAll2() throws InterruptedException {
330	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
331			try (PoolCleaner cleaner = cleaner(e)) {
332	dl	1.6	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
333			assertTrue(r.isEmpty());
334			}
335			}
336
337			/**
338			* invokeAll(c) throws NPE if c has null elements
339			*/
340	jsr166	1.19	public void testInvokeAll3() throws InterruptedException {
341	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
342			try (PoolCleaner cleaner = cleaner(e)) {
343			List<Callable<String>> l = new ArrayList<Callable<String>>();
344			l.add(new StringTask());
345			l.add(null);
346			try {
347			e.invokeAll(l);
348			shouldThrow();
349			} catch (NullPointerException success) {}
350	dl	1.6	}
351			}
352
353			/**
354	dl	1.12	* get of returned element of invokeAll(c) throws exception on failed task
355	dl	1.6	*/
356	jsr166	1.19	public void testInvokeAll4() throws Exception {
357	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
358			try (PoolCleaner cleaner = cleaner(e)) {
359	jsr166	1.22	List<Callable<String>> l = new ArrayList<Callable<String>>();
360	dl	1.6	l.add(new NPETask());
361	jsr166	1.22	List<Future<String>> futures = e.invokeAll(l);
362			assertEquals(1, futures.size());
363			try {
364			futures.get(0).get();
365			shouldThrow();
366			} catch (ExecutionException success) {
367			assertTrue(success.getCause() instanceof NullPointerException);
368	jsr166	1.19	}
369	dl	1.6	}
370			}
371
372			/**
373	dl	1.12	* invokeAll(c) returns results of all completed tasks in c
374	dl	1.6	*/
375	jsr166	1.19	public void testInvokeAll5() throws Exception {
376	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
377			try (PoolCleaner cleaner = cleaner(e)) {
378	jsr166	1.22	List<Callable<String>> l = new ArrayList<Callable<String>>();
379	dl	1.6	l.add(new StringTask());
380			l.add(new StringTask());
381	jsr166	1.22	List<Future<String>> futures = e.invokeAll(l);
382			assertEquals(2, futures.size());
383			for (Future<String> future : futures)
384	jsr166	1.19	assertSame(TEST_STRING, future.get());
385	dl	1.8	}
386			}
387
388			/**
389			* timed invokeAny(null) throws NPE
390			*/
391	jsr166	1.19	public void testTimedInvokeAny1() throws Exception {
392	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
393			try (PoolCleaner cleaner = cleaner(e)) {
394			try {
395			e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
396			shouldThrow();
397			} catch (NullPointerException success) {}
398	dl	1.8	}
399			}
400
401			/**
402	dl	1.12	* timed invokeAny(null time unit) throws NPE
403	dl	1.8	*/
404	jsr166	1.19	public void testTimedInvokeAnyNullTimeUnit() throws Exception {
405	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
406			try (PoolCleaner cleaner = cleaner(e)) {
407			List<Callable<String>> l = new ArrayList<Callable<String>>();
408			l.add(new StringTask());
409			try {
410			e.invokeAny(l, MEDIUM_DELAY_MS, null);
411			shouldThrow();
412			} catch (NullPointerException success) {}
413	dl	1.8	}
414			}
415
416			/**
417			* timed invokeAny(empty collection) throws IAE
418			*/
419	jsr166	1.19	public void testTimedInvokeAny2() throws Exception {
420	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
421			try (PoolCleaner cleaner = cleaner(e)) {
422			try {
423			e.invokeAny(new ArrayList<Callable<String>>(),
424			MEDIUM_DELAY_MS, MILLISECONDS);
425			shouldThrow();
426			} catch (IllegalArgumentException success) {}
427	dl	1.8	}
428			}
429
430			/**
431			* timed invokeAny(c) throws NPE if c has null elements
432			*/
433	jsr166	1.19	public void testTimedInvokeAny3() throws Exception {
434	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
435			try (PoolCleaner cleaner = cleaner(e)) {
436			List<Callable<Long>> l = new ArrayList<Callable<Long>>();
437			l.add(new Callable<Long>() {
438			public Long call() { throw new ArithmeticException(); }});
439			l.add(null);
440			try {
441			e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
442			shouldThrow();
443			} catch (NullPointerException success) {}
444	dl	1.8	}
445			}
446
447			/**
448			* timed invokeAny(c) throws ExecutionException if no task completes
449			*/
450	jsr166	1.19	public void testTimedInvokeAny4() throws Exception {
451	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
452			try (PoolCleaner cleaner = cleaner(e)) {
453			List<Callable<String>> l = new ArrayList<Callable<String>>();
454			l.add(new NPETask());
455			try {
456			e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
457			shouldThrow();
458			} catch (ExecutionException success) {
459			assertTrue(success.getCause() instanceof NullPointerException);
460			}
461	dl	1.8	}
462			}
463
464			/**
465	dl	1.12	* timed invokeAny(c) returns result of some task in c
466	dl	1.8	*/
467	jsr166	1.19	public void testTimedInvokeAny5() throws Exception {
468	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
469			try (PoolCleaner cleaner = cleaner(e)) {
470	jsr166	1.22	List<Callable<String>> l = new ArrayList<Callable<String>>();
471	dl	1.8	l.add(new StringTask());
472			l.add(new StringTask());
473	jsr166	1.20	String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
474	dl	1.8	assertSame(TEST_STRING, result);
475			}
476			}
477
478			/**
479			* timed invokeAll(null) throws NPE
480			*/
481	jsr166	1.19	public void testTimedInvokeAll1() throws InterruptedException {
482	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
483			try (PoolCleaner cleaner = cleaner(e)) {
484			try {
485			e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
486			shouldThrow();
487			} catch (NullPointerException success) {}
488	dl	1.8	}
489			}
490
491			/**
492	dl	1.12	* timed invokeAll(null time unit) throws NPE
493	dl	1.8	*/
494	jsr166	1.19	public void testTimedInvokeAllNullTimeUnit() throws InterruptedException {
495	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
496			try (PoolCleaner cleaner = cleaner(e)) {
497			List<Callable<String>> l = new ArrayList<Callable<String>>();
498			l.add(new StringTask());
499			try {
500			e.invokeAll(l, MEDIUM_DELAY_MS, null);
501			shouldThrow();
502			} catch (NullPointerException success) {}
503	dl	1.8	}
504			}
505
506			/**
507			* timed invokeAll(empty collection) returns empty collection
508			*/
509	jsr166	1.19	public void testTimedInvokeAll2() throws InterruptedException {
510	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
511			try (PoolCleaner cleaner = cleaner(e)) {
512	jsr166	1.20	List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
513	dl	1.8	assertTrue(r.isEmpty());
514			}
515			}
516
517			/**
518			* timed invokeAll(c) throws NPE if c has null elements
519			*/
520	jsr166	1.19	public void testTimedInvokeAll3() throws InterruptedException {
521	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
522			try (PoolCleaner cleaner = cleaner(e)) {
523			List<Callable<String>> l = new ArrayList<Callable<String>>();
524			l.add(new StringTask());
525			l.add(null);
526			try {
527			e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
528			shouldThrow();
529			} catch (NullPointerException success) {}
530	dl	1.8	}
531			}
532
533			/**
534	dl	1.12	* get of returned element of invokeAll(c) throws exception on failed task
535	dl	1.8	*/
536	jsr166	1.19	public void testTimedInvokeAll4() throws Exception {
537	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
538			try (PoolCleaner cleaner = cleaner(e)) {
539	jsr166	1.22	List<Callable<String>> l = new ArrayList<Callable<String>>();
540	dl	1.8	l.add(new NPETask());
541	jsr166	1.22	List<Future<String>> futures =
542			e.invokeAll(l, MEDIUM_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	jsr166	1.19	}
550	dl	1.8	}
551			}
552
553			/**
554	dl	1.12	* timed invokeAll(c) returns results of all completed tasks in c
555	dl	1.8	*/
556	jsr166	1.19	public void testTimedInvokeAll5() throws Exception {
557	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
558			try (PoolCleaner cleaner = cleaner(e)) {
559	jsr166	1.22	List<Callable<String>> l = new ArrayList<Callable<String>>();
560	dl	1.8	l.add(new StringTask());
561			l.add(new StringTask());
562	jsr166	1.22	List<Future<String>> futures =
563	jsr166	1.38	e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS);
564	jsr166	1.22	assertEquals(2, futures.size());
565			for (Future<String> future : futures)
566	jsr166	1.19	assertSame(TEST_STRING, future.get());
567	dl	1.8	}
568			}
569
570			/**
571	dl	1.12	* timed invokeAll cancels tasks not completed by timeout
572	dl	1.8	*/
573	jsr166	1.38	public void testTimedInvokeAll6() throws Exception {
574	jsr166	1.40	final ExecutorService e = new DirectExecutorService();
575			try (PoolCleaner cleaner = cleaner(e)) {
576	jsr166	1.39	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	dl	1.6	}
603	tim	1.1	}
604
605	dl	1.3	}