test/tck/ExecutorsTest.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.AccessControlContext;
import java.security.AccessControlException;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedExceptionAction;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executors;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadPoolExecutor;

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

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

    /**
     * A newCachedThreadPool can execute runnables
     */
    public void testNewCachedThreadPool1() {
        final ExecutorService e = Executors.newCachedThreadPool();
        try (PoolCleaner cleaner = cleaner(e)) {
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
        }
    }

    /**
     * A newCachedThreadPool with given ThreadFactory can execute runnables
     */
    public void testNewCachedThreadPool2() {
        final ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
        try (PoolCleaner cleaner = cleaner(e)) {
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
        }
    }

    /**
     * A newCachedThreadPool with null ThreadFactory throws NPE
     */
    public void testNewCachedThreadPool3() {
        try {
            ExecutorService e = Executors.newCachedThreadPool(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * A new SingleThreadExecutor can execute runnables
     */
    public void testNewSingleThreadExecutor1() {
        final ExecutorService e = Executors.newSingleThreadExecutor();
        try (PoolCleaner cleaner = cleaner(e)) {
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
        }
    }

    /**
     * A new SingleThreadExecutor with given ThreadFactory can execute runnables
     */
    public void testNewSingleThreadExecutor2() {
        final ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
        try (PoolCleaner cleaner = cleaner(e)) {
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
        }
    }

    /**
     * A new SingleThreadExecutor with null ThreadFactory throws NPE
     */
    public void testNewSingleThreadExecutor3() {
        try {
            ExecutorService e = Executors.newSingleThreadExecutor(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * A new SingleThreadExecutor cannot be casted to concrete implementation
     */
    public void testCastNewSingleThreadExecutor() {
        final ExecutorService e = Executors.newSingleThreadExecutor();
        try (PoolCleaner cleaner = cleaner(e)) {
            try {
                ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
                shouldThrow();
            } catch (ClassCastException success) {}
        }
    }

    /**
     * A new newFixedThreadPool can execute runnables
     */
    public void testNewFixedThreadPool1() {
        final ExecutorService e = Executors.newFixedThreadPool(2);
        try (PoolCleaner cleaner = cleaner(e)) {
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
        }
    }

    /**
     * A new newFixedThreadPool with given ThreadFactory can execute runnables
     */
    public void testNewFixedThreadPool2() {
        final ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
        try (PoolCleaner cleaner = cleaner(e)) {
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
        }
    }

    /**
     * A new newFixedThreadPool with null ThreadFactory throws
     * NullPointerException
     */
    public void testNewFixedThreadPool3() {
        try {
            ExecutorService e = Executors.newFixedThreadPool(2, null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * A new newFixedThreadPool with 0 threads throws IllegalArgumentException
     */
    public void testNewFixedThreadPool4() {
        try {
            ExecutorService e = Executors.newFixedThreadPool(0);
            shouldThrow();
        } catch (IllegalArgumentException success) {}
    }

    /**
     * An unconfigurable newFixedThreadPool can execute runnables
     */
    public void testUnconfigurableExecutorService() {
        final ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
        try (PoolCleaner cleaner = cleaner(e)) {
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
            e.execute(new NoOpRunnable());
        }
    }

    /**
     * unconfigurableExecutorService(null) throws NPE
     */
    public void testUnconfigurableExecutorServiceNPE() {
        try {
            ExecutorService e = Executors.unconfigurableExecutorService(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * unconfigurableScheduledExecutorService(null) throws NPE
     */
    public void testUnconfigurableScheduledExecutorServiceNPE() {
        try {
            ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * a newSingleThreadScheduledExecutor successfully runs delayed task
     */
    public void testNewSingleThreadScheduledExecutor() throws Exception {
        final ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
        try (PoolCleaner cleaner = cleaner(p)) {
            final CountDownLatch proceed = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    await(proceed);
                }};
            long startTime = System.nanoTime();
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  timeoutMillis(), MILLISECONDS);
            assertFalse(f.isDone());
            proceed.countDown();
            assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
            assertSame(Boolean.TRUE, f.get());
            assertTrue(f.isDone());
            assertFalse(f.isCancelled());
            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
        }
    }

    /**
     * a newScheduledThreadPool successfully runs delayed task
     */
    public void testNewScheduledThreadPool() throws Exception {
        final ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
        try (PoolCleaner cleaner = cleaner(p)) {
            final CountDownLatch proceed = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    await(proceed);
                }};
            long startTime = System.nanoTime();
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  timeoutMillis(), MILLISECONDS);
            assertFalse(f.isDone());
            proceed.countDown();
            assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
            assertSame(Boolean.TRUE, f.get());
            assertTrue(f.isDone());
            assertFalse(f.isCancelled());
            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
        }
    }

    /**
     * an unconfigurable newScheduledThreadPool successfully runs delayed task
     */
    public void testUnconfigurableScheduledExecutorService() throws Exception {
        final ScheduledExecutorService p =
            Executors.unconfigurableScheduledExecutorService
            (Executors.newScheduledThreadPool(2));
        try (PoolCleaner cleaner = cleaner(p)) {
            final CountDownLatch proceed = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    await(proceed);
                }};
            long startTime = System.nanoTime();
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  timeoutMillis(), MILLISECONDS);
            assertFalse(f.isDone());
            proceed.countDown();
            assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
            assertSame(Boolean.TRUE, f.get());
            assertTrue(f.isDone());
            assertFalse(f.isCancelled());
            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
        }
    }

    /**
     * Future.get on submitted tasks will time out if they compute too long.
     */
    public void testTimedCallable() throws Exception {
        final ExecutorService[] executors = {
            Executors.newSingleThreadExecutor(),
            Executors.newCachedThreadPool(),
            Executors.newFixedThreadPool(2),
            Executors.newScheduledThreadPool(2),
        };

        final Runnable sleeper = new CheckedInterruptedRunnable() {
            public void realRun() throws InterruptedException {
                delay(LONG_DELAY_MS);
            }};

        List<Thread> threads = new ArrayList<>();
        for (final ExecutorService executor : executors) {
            threads.add(newStartedThread(new CheckedRunnable() {
                public void realRun() {
                    Future future = executor.submit(sleeper);
                    assertFutureTimesOut(future);
                }}));
        }
        for (Thread thread : threads)
            awaitTermination(thread);
        for (ExecutorService executor : executors)
            joinPool(executor);
    }

    /**
     * ThreadPoolExecutor using defaultThreadFactory has
     * specified group, priority, daemon status, and name
     */
    public void testDefaultThreadFactory() throws Exception {
        final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
        final CountDownLatch done = new CountDownLatch(1);
        Runnable r = new CheckedRunnable() {
            public void realRun() {
                try {
                    Thread current = Thread.currentThread();
                    assertFalse(current.isDaemon());
                    assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
                    SecurityManager s = System.getSecurityManager();
                    assertSame(current.getThreadGroup(),
                               (s == null) ? egroup : s.getThreadGroup());
                    assertTrue(current.getName().endsWith("thread-1"));
                } catch (SecurityException ok) {
                    // Also pass if not allowed to change setting
                }
                done.countDown();
            }};
        ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
        try (PoolCleaner cleaner = cleaner(e)) {
            e.execute(r);
            await(done);
        }
    }

    /**
     * ThreadPoolExecutor using privilegedThreadFactory has
     * specified group, priority, daemon status, name,
     * access control context and context class loader
     */
    public void testPrivilegedThreadFactory() throws Exception {
        final CountDownLatch done = new CountDownLatch(1);
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
                final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
                final AccessControlContext thisacc = AccessController.getContext();
                Runnable r = new CheckedRunnable() {
                    public void realRun() {
                        Thread current = Thread.currentThread();
                        assertFalse(current.isDaemon());
                        assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
                        SecurityManager s = System.getSecurityManager();
                        assertSame(current.getThreadGroup(),
                                   (s == null) ? egroup : s.getThreadGroup());
                        assertTrue(current.getName().endsWith("thread-1"));
                        assertSame(thisccl, current.getContextClassLoader());
                        assertEquals(thisacc, AccessController.getContext());
                        done.countDown();
                    }};
                ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
                try (PoolCleaner cleaner = cleaner(e)) {
                    e.execute(r);
                    await(done);
                }
            }};

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

    boolean haveCCLPermissions() {
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            try {
                sm.checkPermission(new RuntimePermission("setContextClassLoader"));
                sm.checkPermission(new RuntimePermission("getClassLoader"));
            } catch (AccessControlException e) {
                return false;
            }
        }
        return true;
    }

    void checkCCL() {
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            sm.checkPermission(new RuntimePermission("setContextClassLoader"));
            sm.checkPermission(new RuntimePermission("getClassLoader"));
        }
    }

    class CheckCCL implements Callable<Object> {
        public Object call() {
            checkCCL();
            return null;
        }
    }

    /**
     * Without class loader permissions, creating
     * privilegedCallableUsingCurrentClassLoader throws ACE
     */
    public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                if (System.getSecurityManager() == null)
                    return;
                try {
                    Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
                    shouldThrow();
                } catch (AccessControlException success) {}
            }};

        runWithoutPermissions(r);
    }

    /**
     * With class loader permissions, calling
     * privilegedCallableUsingCurrentClassLoader does not throw ACE
     */
    public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                Executors.privilegedCallableUsingCurrentClassLoader
                    (new NoOpCallable())
                    .call();
            }};

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

    /**
     * Without permissions, calling privilegedCallable throws ACE
     */
    public void testPrivilegedCallableWithNoPrivs() throws Exception {
        // Avoid classloader-related SecurityExceptions in swingui.TestRunner
        Executors.privilegedCallable(new CheckCCL());

        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                if (System.getSecurityManager() == null)
                    return;
                Callable task = Executors.privilegedCallable(new CheckCCL());
                try {
                    task.call();
                    shouldThrow();
                } catch (AccessControlException success) {}
            }};

        runWithoutPermissions(r);

        // It seems rather difficult to test that the
        // AccessControlContext of the privilegedCallable is used
        // instead of its caller.  Below is a failed attempt to do
        // that, which does not work because the AccessController
        // cannot capture the internal state of the current Policy.
        // It would be much more work to differentiate based on,
        // e.g. CodeSource.

//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
//         final Callable[] task = new Callable[1];

//         runWithPermissions
//             (new CheckedRunnable() {
//                 public void realRun() {
//                     if (System.getSecurityManager() == null)
//                         return;
//                     noprivAcc[0] = AccessController.getContext();
//                     task[0] = Executors.privilegedCallable(new CheckCCL());
//                     try {
//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
//                                                           public Void run() {
//                                                               checkCCL();
//                                                               return null;
//                                                           }}, noprivAcc[0]);
//                         shouldThrow();
//                     } catch (AccessControlException success) {}
//                 }});

//         runWithPermissions
//             (new CheckedRunnable() {
//                 public void realRun() throws Exception {
//                     if (System.getSecurityManager() == null)
//                         return;
//                     // Verify that we have an underprivileged ACC
//                     try {
//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
//                                                           public Void run() {
//                                                               checkCCL();
//                                                               return null;
//                                                           }}, noprivAcc[0]);
//                         shouldThrow();
//                     } catch (AccessControlException success) {}

//                     try {
//                         task[0].call();
//                         shouldThrow();
//                     } catch (AccessControlException success) {}
//                 }},
//              new RuntimePermission("getClassLoader"),
//              new RuntimePermission("setContextClassLoader"));
    }

    /**
     * With permissions, calling privilegedCallable succeeds
     */
    public void testPrivilegedCallableWithPrivs() throws Exception {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                Executors.privilegedCallable(new CheckCCL()).call();
            }};

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

    /**
     * callable(Runnable) returns null when called
     */
    public void testCallable1() throws Exception {
        Callable c = Executors.callable(new NoOpRunnable());
        assertNull(c.call());
    }

    /**
     * callable(Runnable, result) returns result when called
     */
    public void testCallable2() throws Exception {
        Callable c = Executors.callable(new NoOpRunnable(), one);
        assertSame(one, c.call());
    }

    /**
     * callable(PrivilegedAction) returns its result when called
     */
    public void testCallable3() throws Exception {
        Callable c = Executors.callable(new PrivilegedAction() {
                public Object run() { return one; }});
        assertSame(one, c.call());
    }

    /**
     * callable(PrivilegedExceptionAction) returns its result when called
     */
    public void testCallable4() throws Exception {
        Callable c = Executors.callable(new PrivilegedExceptionAction() {
                public Object run() { return one; }});
        assertSame(one, c.call());
    }

    /**
     * callable(null Runnable) throws NPE
     */
    public void testCallableNPE1() {
        try {
            Callable c = Executors.callable((Runnable) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null, result) throws NPE
     */
    public void testCallableNPE2() {
        try {
            Callable c = Executors.callable((Runnable) null, one);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null PrivilegedAction) throws NPE
     */
    public void testCallableNPE3() {
        try {
            Callable c = Executors.callable((PrivilegedAction) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null PrivilegedExceptionAction) throws NPE
     */
    public void testCallableNPE4() {
        try {
            Callable c = Executors.callable((PrivilegedExceptionAction) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

}
Revision:	1.49
Committed:	Mon May 29 22:44:26 2017 UTC (6 years, 11 months ago) by jsr166
Branch:	MAIN
Changes since 1.48:	+3 -2 lines
Log Message:	more timeout handling rework; remove most uses of MEDIUM_DELAY_MS; randomize timeouts and TimeUnits; write out IAE and ISE
#	User	Rev	Content
1	dl	1.1	/*
2	dl	1.12	* 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	1.37	* http://creativecommons.org/publicdomain/zero/1.0/
5	jsr166	1.20	* Other contributors include Andrew Wright, Jeffrey Hayes,
6			* Pat Fisher, Mike Judd.
7	dl	1.1	*/
8
9	jsr166	1.26	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	jsr166	1.43
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			import junit.framework.Test;
27			import junit.framework.TestSuite;
28	dl	1.1
29	jsr166	1.22	public class ExecutorsTest extends JSR166TestCase {
30	dl	1.1	public static void main(String[] args) {
31	jsr166	1.45	main(suite(), args);
32	dl	1.1	}
33			public static Test suite() {
34	tim	1.9	return new TestSuite(ExecutorsTest.class);
35	dl	1.1	}
36
37	dl	1.5	/**
38			* A newCachedThreadPool can execute runnables
39			*/
40			public void testNewCachedThreadPool1() {
41	jsr166	1.46	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	dl	1.5	}
48
49			/**
50			* A newCachedThreadPool with given ThreadFactory can execute runnables
51			*/
52			public void testNewCachedThreadPool2() {
53	jsr166	1.46	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	dl	1.5	}
60
61			/**
62			* A newCachedThreadPool with null ThreadFactory throws NPE
63			*/
64			public void testNewCachedThreadPool3() {
65			try {
66			ExecutorService e = Executors.newCachedThreadPool(null);
67			shouldThrow();
68	jsr166	1.23	} catch (NullPointerException success) {}
69	dl	1.5	}
70
71			/**
72			* A new SingleThreadExecutor can execute runnables
73			*/
74			public void testNewSingleThreadExecutor1() {
75	jsr166	1.46	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	dl	1.5	}
82
83			/**
84			* A new SingleThreadExecutor with given ThreadFactory can execute runnables
85			*/
86			public void testNewSingleThreadExecutor2() {
87	jsr166	1.46	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	dl	1.5	}
94
95			/**
96			* A new SingleThreadExecutor with null ThreadFactory throws NPE
97			*/
98			public void testNewSingleThreadExecutor3() {
99			try {
100			ExecutorService e = Executors.newSingleThreadExecutor(null);
101			shouldThrow();
102	jsr166	1.23	} catch (NullPointerException success) {}
103	dl	1.5	}
104
105			/**
106	dl	1.11	* A new SingleThreadExecutor cannot be casted to concrete implementation
107			*/
108			public void testCastNewSingleThreadExecutor() {
109	jsr166	1.46	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	dl	1.11	}
116			}
117
118			/**
119	dl	1.5	* A new newFixedThreadPool can execute runnables
120			*/
121			public void testNewFixedThreadPool1() {
122	jsr166	1.46	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	dl	1.5	}
129
130			/**
131			* A new newFixedThreadPool with given ThreadFactory can execute runnables
132			*/
133			public void testNewFixedThreadPool2() {
134	jsr166	1.46	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	dl	1.5	}
141
142			/**
143	jsr166	1.49	* A new newFixedThreadPool with null ThreadFactory throws
144			* NullPointerException
145	dl	1.5	*/
146			public void testNewFixedThreadPool3() {
147			try {
148			ExecutorService e = Executors.newFixedThreadPool(2, null);
149			shouldThrow();
150	jsr166	1.23	} catch (NullPointerException success) {}
151	dl	1.5	}
152
153			/**
154	jsr166	1.49	* A new newFixedThreadPool with 0 threads throws IllegalArgumentException
155	dl	1.5	*/
156			public void testNewFixedThreadPool4() {
157			try {
158			ExecutorService e = Executors.newFixedThreadPool(0);
159			shouldThrow();
160	jsr166	1.23	} catch (IllegalArgumentException success) {}
161	dl	1.5	}
162	dl	1.1
163	dl	1.2	/**
164	dl	1.11	* An unconfigurable newFixedThreadPool can execute runnables
165			*/
166	jsr166	1.42	public void testUnconfigurableExecutorService() {
167	jsr166	1.46	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	dl	1.11	}
174
175			/**
176			* unconfigurableExecutorService(null) throws NPE
177			*/
178	jsr166	1.42	public void testUnconfigurableExecutorServiceNPE() {
179	dl	1.11	try {
180			ExecutorService e = Executors.unconfigurableExecutorService(null);
181	jsr166	1.23	shouldThrow();
182			} catch (NullPointerException success) {}
183	dl	1.11	}
184
185			/**
186			* unconfigurableScheduledExecutorService(null) throws NPE
187			*/
188	jsr166	1.42	public void testUnconfigurableScheduledExecutorServiceNPE() {
189	dl	1.11	try {
190			ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
191	jsr166	1.23	shouldThrow();
192			} catch (NullPointerException success) {}
193	dl	1.11	}
194
195			/**
196			* a newSingleThreadScheduledExecutor successfully runs delayed task
197			*/
198	jsr166	1.23	public void testNewSingleThreadScheduledExecutor() throws Exception {
199	jsr166	1.46	final ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
200			try (PoolCleaner cleaner = cleaner(p)) {
201	jsr166	1.42	final CountDownLatch proceed = new CountDownLatch(1);
202	jsr166	1.35	final Runnable task = new CheckedRunnable() {
203			public void realRun() {
204	jsr166	1.42	await(proceed);
205	jsr166	1.35	}};
206	jsr166	1.42	long startTime = System.nanoTime();
207	jsr166	1.35	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
208	jsr166	1.42	timeoutMillis(), MILLISECONDS);
209	jsr166	1.35	assertFalse(f.isDone());
210	jsr166	1.42	proceed.countDown();
211			assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
212	jsr166	1.36	assertSame(Boolean.TRUE, f.get());
213	jsr166	1.35	assertTrue(f.isDone());
214	jsr166	1.42	assertFalse(f.isCancelled());
215			assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
216	jsr166	1.35	}
217	dl	1.11	}
218
219			/**
220			* a newScheduledThreadPool successfully runs delayed task
221			*/
222	jsr166	1.42	public void testNewScheduledThreadPool() throws Exception {
223	jsr166	1.46	final ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
224			try (PoolCleaner cleaner = cleaner(p)) {
225	jsr166	1.42	final CountDownLatch proceed = new CountDownLatch(1);
226	jsr166	1.35	final Runnable task = new CheckedRunnable() {
227			public void realRun() {
228	jsr166	1.42	await(proceed);
229	jsr166	1.35	}};
230	jsr166	1.42	long startTime = System.nanoTime();
231	jsr166	1.35	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
232	jsr166	1.42	timeoutMillis(), MILLISECONDS);
233	jsr166	1.35	assertFalse(f.isDone());
234	jsr166	1.42	proceed.countDown();
235			assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
236	jsr166	1.36	assertSame(Boolean.TRUE, f.get());
237	jsr166	1.35	assertTrue(f.isDone());
238	jsr166	1.42	assertFalse(f.isCancelled());
239			assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
240	jsr166	1.35	}
241	dl	1.11	}
242
243			/**
244	jsr166	1.24	* an unconfigurable newScheduledThreadPool successfully runs delayed task
245	dl	1.11	*/
246	jsr166	1.42	public void testUnconfigurableScheduledExecutorService() throws Exception {
247	jsr166	1.46	final ScheduledExecutorService p =
248	jsr166	1.35	Executors.unconfigurableScheduledExecutorService
249			(Executors.newScheduledThreadPool(2));
250	jsr166	1.46	try (PoolCleaner cleaner = cleaner(p)) {
251	jsr166	1.42	final CountDownLatch proceed = new CountDownLatch(1);
252	jsr166	1.35	final Runnable task = new CheckedRunnable() {
253			public void realRun() {
254	jsr166	1.42	await(proceed);
255	jsr166	1.35	}};
256	jsr166	1.42	long startTime = System.nanoTime();
257	jsr166	1.35	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
258	jsr166	1.42	timeoutMillis(), MILLISECONDS);
259	jsr166	1.35	assertFalse(f.isDone());
260	jsr166	1.42	proceed.countDown();
261			assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
262	jsr166	1.36	assertSame(Boolean.TRUE, f.get());
263	jsr166	1.35	assertTrue(f.isDone());
264	jsr166	1.42	assertFalse(f.isCancelled());
265			assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
266	jsr166	1.35	}
267	dl	1.11	}
268
269			/**
270	jsr166	1.34	* Future.get on submitted tasks will time out if they compute too long.
271	dl	1.2	*/
272	jsr166	1.23	public void testTimedCallable() throws Exception {
273	jsr166	1.40	final ExecutorService[] executors = {
274			Executors.newSingleThreadExecutor(),
275			Executors.newCachedThreadPool(),
276			Executors.newFixedThreadPool(2),
277			Executors.newScheduledThreadPool(2),
278			};
279
280	jsr166	1.33	final Runnable sleeper = new CheckedInterruptedRunnable() {
281			public void realRun() throws InterruptedException {
282	dl	1.39	delay(LONG_DELAY_MS);
283	jsr166	1.33	}};
284	jsr166	1.40
285	jsr166	1.47	List<Thread> threads = new ArrayList<>();
286	jsr166	1.40	for (final ExecutorService executor : executors) {
287			threads.add(newStartedThread(new CheckedRunnable() {
288			public void realRun() {
289			Future future = executor.submit(sleeper);
290			assertFutureTimesOut(future);
291			}}));
292	dl	1.2	}
293	jsr166	1.40	for (Thread thread : threads)
294			awaitTermination(thread);
295			for (ExecutorService executor : executors)
296			joinPool(executor);
297	dl	1.2	}
298
299	dl	1.8	/**
300			* ThreadPoolExecutor using defaultThreadFactory has
301			* specified group, priority, daemon status, and name
302			*/
303	jsr166	1.23	public void testDefaultThreadFactory() throws Exception {
304	tim	1.9	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
305	jsr166	1.42	final CountDownLatch done = new CountDownLatch(1);
306	jsr166	1.31	Runnable r = new CheckedRunnable() {
307			public void realRun() {
308			try {
309			Thread current = Thread.currentThread();
310	jsr166	1.48	assertFalse(current.isDaemon());
311	jsr166	1.31	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
312			SecurityManager s = System.getSecurityManager();
313	jsr166	1.48	assertSame(current.getThreadGroup(),
314			(s == null) ? egroup : s.getThreadGroup());
315			assertTrue(current.getName().endsWith("thread-1"));
316	jsr166	1.31	} catch (SecurityException ok) {
317			// Also pass if not allowed to change setting
318	tim	1.9	}
319	jsr166	1.42	done.countDown();
320	jsr166	1.31	}};
321	tim	1.9	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
322	jsr166	1.46	try (PoolCleaner cleaner = cleaner(e)) {
323			e.execute(r);
324			await(done);
325	dl	1.14	}
326	dl	1.8	}
327
328			/**
329			* ThreadPoolExecutor using privilegedThreadFactory has
330			* specified group, priority, daemon status, name,
331			* access control context and context class loader
332			*/
333	jsr166	1.23	public void testPrivilegedThreadFactory() throws Exception {
334	jsr166	1.42	final CountDownLatch done = new CountDownLatch(1);
335	jsr166	1.29	Runnable r = new CheckedRunnable() {
336			public void realRun() throws Exception {
337			final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
338			final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
339			final AccessControlContext thisacc = AccessController.getContext();
340			Runnable r = new CheckedRunnable() {
341			public void realRun() {
342	jsr166	1.25	Thread current = Thread.currentThread();
343	jsr166	1.48	assertFalse(current.isDaemon());
344	jsr166	1.29	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
345	jsr166	1.25	SecurityManager s = System.getSecurityManager();
346	jsr166	1.48	assertSame(current.getThreadGroup(),
347			(s == null) ? egroup : s.getThreadGroup());
348			assertTrue(current.getName().endsWith("thread-1"));
349	jsr166	1.31	assertSame(thisccl, current.getContextClassLoader());
350			assertEquals(thisacc, AccessController.getContext());
351	jsr166	1.42	done.countDown();
352	jsr166	1.29	}};
353			ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
354	jsr166	1.46	try (PoolCleaner cleaner = cleaner(e)) {
355			e.execute(r);
356			await(done);
357			}
358	jsr166	1.29	}};
359
360			runWithPermissions(r,
361			new RuntimePermission("getClassLoader"),
362			new RuntimePermission("setContextClassLoader"),
363			new RuntimePermission("modifyThread"));
364			}
365	jsr166	1.20
366	jsr166	1.29	boolean haveCCLPermissions() {
367			SecurityManager sm = System.getSecurityManager();
368			if (sm != null) {
369			try {
370			sm.checkPermission(new RuntimePermission("setContextClassLoader"));
371			sm.checkPermission(new RuntimePermission("getClassLoader"));
372			} catch (AccessControlException e) {
373			return false;
374			}
375	tim	1.9	}
376	jsr166	1.29	return true;
377	dl	1.8	}
378	dl	1.11
379	dl	1.16	void checkCCL() {
380	dl	1.18	SecurityManager sm = System.getSecurityManager();
381			if (sm != null) {
382			sm.checkPermission(new RuntimePermission("setContextClassLoader"));
383	jsr166	1.19	sm.checkPermission(new RuntimePermission("getClassLoader"));
384	dl	1.18	}
385	dl	1.16	}
386
387			class CheckCCL implements Callable<Object> {
388	dl	1.11	public Object call() {
389	dl	1.16	checkCCL();
390	dl	1.11	return null;
391			}
392			}
393
394			/**
395			* Without class loader permissions, creating
396			* privilegedCallableUsingCurrentClassLoader throws ACE
397			*/
398			public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
399	jsr166	1.29	Runnable r = new CheckedRunnable() {
400			public void realRun() throws Exception {
401			if (System.getSecurityManager() == null)
402			return;
403			try {
404			Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
405			shouldThrow();
406			} catch (AccessControlException success) {}
407			}};
408	dl	1.16
409	jsr166	1.29	runWithoutPermissions(r);
410	dl	1.11	}
411
412			/**
413	dl	1.16	* With class loader permissions, calling
414			* privilegedCallableUsingCurrentClassLoader does not throw ACE
415	dl	1.11	*/
416	jsr166	1.42	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
417	jsr166	1.29	Runnable r = new CheckedRunnable() {
418			public void realRun() throws Exception {
419			Executors.privilegedCallableUsingCurrentClassLoader
420			(new NoOpCallable())
421			.call();
422			}};
423
424			runWithPermissions(r,
425			new RuntimePermission("getClassLoader"),
426			new RuntimePermission("setContextClassLoader"));
427	dl	1.11	}
428
429			/**
430			* Without permissions, calling privilegedCallable throws ACE
431			*/
432	jsr166	1.42	public void testPrivilegedCallableWithNoPrivs() throws Exception {
433	jsr166	1.32	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
434			Executors.privilegedCallable(new CheckCCL());
435
436	jsr166	1.29	Runnable r = new CheckedRunnable() {
437			public void realRun() throws Exception {
438			if (System.getSecurityManager() == null)
439			return;
440			Callable task = Executors.privilegedCallable(new CheckCCL());
441			try {
442			task.call();
443			shouldThrow();
444			} catch (AccessControlException success) {}
445			}};
446
447			runWithoutPermissions(r);
448
449			// It seems rather difficult to test that the
450			// AccessControlContext of the privilegedCallable is used
451			// instead of its caller. Below is a failed attempt to do
452			// that, which does not work because the AccessController
453			// cannot capture the internal state of the current Policy.
454			// It would be much more work to differentiate based on,
455			// e.g. CodeSource.
456
457			// final AccessControlContext[] noprivAcc = new AccessControlContext[1];
458			// final Callable[] task = new Callable[1];
459
460			// runWithPermissions
461			// (new CheckedRunnable() {
462			// public void realRun() {
463			// if (System.getSecurityManager() == null)
464			// return;
465			// noprivAcc[0] = AccessController.getContext();
466			// task[0] = Executors.privilegedCallable(new CheckCCL());
467			// try {
468			// AccessController.doPrivileged(new PrivilegedAction<Void>() {
469			// public Void run() {
470			// checkCCL();
471			// return null;
472			// }}, noprivAcc[0]);
473			// shouldThrow();
474			// } catch (AccessControlException success) {}
475			// }});
476
477			// runWithPermissions
478			// (new CheckedRunnable() {
479			// public void realRun() throws Exception {
480			// if (System.getSecurityManager() == null)
481			// return;
482			// // Verify that we have an underprivileged ACC
483			// try {
484			// AccessController.doPrivileged(new PrivilegedAction<Void>() {
485			// public Void run() {
486			// checkCCL();
487			// return null;
488			// }}, noprivAcc[0]);
489			// shouldThrow();
490			// } catch (AccessControlException success) {}
491
492			// try {
493			// task[0].call();
494			// shouldThrow();
495			// } catch (AccessControlException success) {}
496			// }},
497			// new RuntimePermission("getClassLoader"),
498			// new RuntimePermission("setContextClassLoader"));
499	dl	1.11	}
500
501			/**
502			* With permissions, calling privilegedCallable succeeds
503			*/
504	jsr166	1.42	public void testPrivilegedCallableWithPrivs() throws Exception {
505	jsr166	1.29	Runnable r = new CheckedRunnable() {
506			public void realRun() throws Exception {
507			Executors.privilegedCallable(new CheckCCL()).call();
508			}};
509
510	jsr166	1.38	runWithPermissions(r,
511	jsr166	1.29	new RuntimePermission("getClassLoader"),
512			new RuntimePermission("setContextClassLoader"));
513	dl	1.11	}
514
515			/**
516			* callable(Runnable) returns null when called
517	jsr166	1.20	*/
518	jsr166	1.23	public void testCallable1() throws Exception {
519			Callable c = Executors.callable(new NoOpRunnable());
520			assertNull(c.call());
521	dl	1.11	}
522
523			/**
524			* callable(Runnable, result) returns result when called
525	jsr166	1.20	*/
526	jsr166	1.23	public void testCallable2() throws Exception {
527			Callable c = Executors.callable(new NoOpRunnable(), one);
528	jsr166	1.27	assertSame(one, c.call());
529	dl	1.11	}
530
531			/**
532			* callable(PrivilegedAction) returns its result when called
533	jsr166	1.20	*/
534	jsr166	1.23	public void testCallable3() throws Exception {
535			Callable c = Executors.callable(new PrivilegedAction() {
536			public Object run() { return one; }});
537	jsr166	1.27	assertSame(one, c.call());
538	dl	1.11	}
539
540			/**
541			* callable(PrivilegedExceptionAction) returns its result when called
542	jsr166	1.20	*/
543	jsr166	1.23	public void testCallable4() throws Exception {
544			Callable c = Executors.callable(new PrivilegedExceptionAction() {
545			public Object run() { return one; }});
546	jsr166	1.27	assertSame(one, c.call());
547	dl	1.11	}
548
549			/**
550			* callable(null Runnable) throws NPE
551	jsr166	1.20	*/
552	dl	1.11	public void testCallableNPE1() {
553			try {
554	jsr166	1.23	Callable c = Executors.callable((Runnable) null);
555			shouldThrow();
556			} catch (NullPointerException success) {}
557	dl	1.11	}
558
559			/**
560			* callable(null, result) throws NPE
561	jsr166	1.20	*/
562	dl	1.11	public void testCallableNPE2() {
563			try {
564	jsr166	1.23	Callable c = Executors.callable((Runnable) null, one);
565			shouldThrow();
566			} catch (NullPointerException success) {}
567	dl	1.11	}
568
569			/**
570			* callable(null PrivilegedAction) throws NPE
571	jsr166	1.20	*/
572	dl	1.11	public void testCallableNPE3() {
573			try {
574	jsr166	1.23	Callable c = Executors.callable((PrivilegedAction) null);
575			shouldThrow();
576			} catch (NullPointerException success) {}
577	dl	1.11	}
578
579			/**
580			* callable(null PrivilegedExceptionAction) throws NPE
581	jsr166	1.20	*/
582	dl	1.11	public void testCallableNPE4() {
583			try {
584	jsr166	1.23	Callable c = Executors.callable((PrivilegedExceptionAction) null);
585			shouldThrow();
586			} catch (NullPointerException success) {}
587	dl	1.11	}
588
589	dl	1.1	}