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() {
        ExecutorService e = Executors.newCachedThreadPool();
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

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

    /**
     * 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() {
        ExecutorService e = Executors.newSingleThreadExecutor();
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

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

    /**
     * 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() {
        ExecutorService e = Executors.newSingleThreadExecutor();
        try {
            ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
            shouldThrow();
        } catch (ClassCastException success) {
        } finally {
            joinPool(e);
        }
    }

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

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

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

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

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

    /**
     * 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 {
        ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
        try {
            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());
        } finally {
            joinPool(p);
        }
    }

    /**
     * a newScheduledThreadPool successfully runs delayed task
     */
    public void testNewScheduledThreadPool() throws Exception {
        ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
        try {
            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());
        } finally {
            joinPool(p);
        }
    }

    /**
     * an unconfigurable newScheduledThreadPool successfully runs delayed task
     */
    public void testUnconfigurableScheduledExecutorService() throws Exception {
        ScheduledExecutorService p =
            Executors.unconfigurableScheduledExecutorService
            (Executors.newScheduledThreadPool(2));
        try {
            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());
        } finally {
            joinPool(p);
        }
    }

    /**
     * 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<Thread>();
        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();
                    assertTrue(!current.isDaemon());
                    assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
                    ThreadGroup g = current.getThreadGroup();
                    SecurityManager s = System.getSecurityManager();
                    if (s != null)
                        assertTrue(g == s.getThreadGroup());
                    else
                        assertTrue(g == egroup);
                    String name = current.getName();
                    assertTrue(name.endsWith("thread-1"));
                } catch (SecurityException ok) {
                    // Also pass if not allowed to change setting
                }
                done.countDown();
            }};
        ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());

        e.execute(r);
        await(done);

        try {
            e.shutdown();
        } catch (SecurityException ok) {
        }

        joinPool(e);
    }

    /**
     * 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();
                        assertTrue(!current.isDaemon());
                        assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
                        ThreadGroup g = current.getThreadGroup();
                        SecurityManager s = System.getSecurityManager();
                        if (s != null)
                            assertTrue(g == s.getThreadGroup());
                        else
                            assertTrue(g == egroup);
                        String name = current.getName();
                        assertTrue(name.endsWith("thread-1"));
                        assertSame(thisccl, current.getContextClassLoader());
                        assertEquals(thisacc, AccessController.getContext());
                        done.countDown();
                    }};
                ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
                e.execute(r);
                await(done);
                e.shutdown();
                joinPool(e);
            }};

        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:	1.45
Committed:	Sat Apr 25 04:55:30 2015 UTC (9 years ago) by jsr166
Branch:	MAIN
Changes since 1.44:	+1 -1 lines
Log Message:	improve main methods; respect system properties; actually fail if a test fails
#	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			ExecutorService e = Executors.newCachedThreadPool();
42			e.execute(new NoOpRunnable());
43			e.execute(new NoOpRunnable());
44			e.execute(new NoOpRunnable());
45	dl	1.14	joinPool(e);
46	dl	1.5	}
47
48			/**
49			* A newCachedThreadPool with given ThreadFactory can execute runnables
50			*/
51			public void testNewCachedThreadPool2() {
52	dl	1.6	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
53	dl	1.5	e.execute(new NoOpRunnable());
54			e.execute(new NoOpRunnable());
55			e.execute(new NoOpRunnable());
56	dl	1.14	joinPool(e);
57	dl	1.5	}
58
59			/**
60			* A newCachedThreadPool with null ThreadFactory throws NPE
61			*/
62			public void testNewCachedThreadPool3() {
63			try {
64			ExecutorService e = Executors.newCachedThreadPool(null);
65			shouldThrow();
66	jsr166	1.23	} catch (NullPointerException success) {}
67	dl	1.5	}
68
69			/**
70			* A new SingleThreadExecutor can execute runnables
71			*/
72			public void testNewSingleThreadExecutor1() {
73			ExecutorService e = Executors.newSingleThreadExecutor();
74			e.execute(new NoOpRunnable());
75			e.execute(new NoOpRunnable());
76			e.execute(new NoOpRunnable());
77	dl	1.14	joinPool(e);
78	dl	1.5	}
79
80			/**
81			* A new SingleThreadExecutor with given ThreadFactory can execute runnables
82			*/
83			public void testNewSingleThreadExecutor2() {
84	dl	1.6	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
85	dl	1.5	e.execute(new NoOpRunnable());
86			e.execute(new NoOpRunnable());
87			e.execute(new NoOpRunnable());
88	dl	1.14	joinPool(e);
89	dl	1.5	}
90
91			/**
92			* A new SingleThreadExecutor with null ThreadFactory throws NPE
93			*/
94			public void testNewSingleThreadExecutor3() {
95			try {
96			ExecutorService e = Executors.newSingleThreadExecutor(null);
97			shouldThrow();
98	jsr166	1.23	} catch (NullPointerException success) {}
99	dl	1.5	}
100
101			/**
102	dl	1.11	* A new SingleThreadExecutor cannot be casted to concrete implementation
103			*/
104			public void testCastNewSingleThreadExecutor() {
105			ExecutorService e = Executors.newSingleThreadExecutor();
106			try {
107			ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
108	jsr166	1.23	shouldThrow();
109	dl	1.11	} catch (ClassCastException success) {
110			} finally {
111			joinPool(e);
112			}
113			}
114
115			/**
116	dl	1.5	* A new newFixedThreadPool can execute runnables
117			*/
118			public void testNewFixedThreadPool1() {
119			ExecutorService e = Executors.newFixedThreadPool(2);
120			e.execute(new NoOpRunnable());
121			e.execute(new NoOpRunnable());
122			e.execute(new NoOpRunnable());
123	dl	1.14	joinPool(e);
124	dl	1.5	}
125
126			/**
127			* A new newFixedThreadPool with given ThreadFactory can execute runnables
128			*/
129			public void testNewFixedThreadPool2() {
130	dl	1.6	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
131	dl	1.5	e.execute(new NoOpRunnable());
132			e.execute(new NoOpRunnable());
133			e.execute(new NoOpRunnable());
134	dl	1.14	joinPool(e);
135	dl	1.5	}
136
137			/**
138			* A new newFixedThreadPool with null ThreadFactory throws NPE
139			*/
140			public void testNewFixedThreadPool3() {
141			try {
142			ExecutorService e = Executors.newFixedThreadPool(2, null);
143			shouldThrow();
144	jsr166	1.23	} catch (NullPointerException success) {}
145	dl	1.5	}
146
147			/**
148			* A new newFixedThreadPool with 0 threads throws IAE
149			*/
150			public void testNewFixedThreadPool4() {
151			try {
152			ExecutorService e = Executors.newFixedThreadPool(0);
153			shouldThrow();
154	jsr166	1.23	} catch (IllegalArgumentException success) {}
155	dl	1.5	}
156	dl	1.1
157	dl	1.2	/**
158	dl	1.11	* An unconfigurable newFixedThreadPool can execute runnables
159			*/
160	jsr166	1.42	public void testUnconfigurableExecutorService() {
161	dl	1.11	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
162			e.execute(new NoOpRunnable());
163			e.execute(new NoOpRunnable());
164			e.execute(new NoOpRunnable());
165	dl	1.14	joinPool(e);
166	dl	1.11	}
167
168			/**
169			* unconfigurableExecutorService(null) throws NPE
170			*/
171	jsr166	1.42	public void testUnconfigurableExecutorServiceNPE() {
172	dl	1.11	try {
173			ExecutorService e = Executors.unconfigurableExecutorService(null);
174	jsr166	1.23	shouldThrow();
175			} catch (NullPointerException success) {}
176	dl	1.11	}
177
178			/**
179			* unconfigurableScheduledExecutorService(null) throws NPE
180			*/
181	jsr166	1.42	public void testUnconfigurableScheduledExecutorServiceNPE() {
182	dl	1.11	try {
183			ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
184	jsr166	1.23	shouldThrow();
185			} catch (NullPointerException success) {}
186	dl	1.11	}
187
188			/**
189			* a newSingleThreadScheduledExecutor successfully runs delayed task
190			*/
191	jsr166	1.23	public void testNewSingleThreadScheduledExecutor() throws Exception {
192	jsr166	1.35	ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
193			try {
194	jsr166	1.42	final CountDownLatch proceed = new CountDownLatch(1);
195	jsr166	1.35	final Runnable task = new CheckedRunnable() {
196			public void realRun() {
197	jsr166	1.42	await(proceed);
198	jsr166	1.35	}};
199	jsr166	1.42	long startTime = System.nanoTime();
200	jsr166	1.35	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
201	jsr166	1.42	timeoutMillis(), MILLISECONDS);
202	jsr166	1.35	assertFalse(f.isDone());
203	jsr166	1.42	proceed.countDown();
204			assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
205	jsr166	1.36	assertSame(Boolean.TRUE, f.get());
206	jsr166	1.35	assertTrue(f.isDone());
207	jsr166	1.42	assertFalse(f.isCancelled());
208			assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
209	jsr166	1.35	} finally {
210			joinPool(p);
211			}
212	dl	1.11	}
213
214			/**
215			* a newScheduledThreadPool successfully runs delayed task
216			*/
217	jsr166	1.42	public void testNewScheduledThreadPool() throws Exception {
218	jsr166	1.35	ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
219			try {
220	jsr166	1.42	final CountDownLatch proceed = new CountDownLatch(1);
221	jsr166	1.35	final Runnable task = new CheckedRunnable() {
222			public void realRun() {
223	jsr166	1.42	await(proceed);
224	jsr166	1.35	}};
225	jsr166	1.42	long startTime = System.nanoTime();
226	jsr166	1.35	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
227	jsr166	1.42	timeoutMillis(), MILLISECONDS);
228	jsr166	1.35	assertFalse(f.isDone());
229	jsr166	1.42	proceed.countDown();
230			assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
231	jsr166	1.36	assertSame(Boolean.TRUE, f.get());
232	jsr166	1.35	assertTrue(f.isDone());
233	jsr166	1.42	assertFalse(f.isCancelled());
234			assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
235	jsr166	1.35	} finally {
236			joinPool(p);
237			}
238	dl	1.11	}
239
240			/**
241	jsr166	1.24	* an unconfigurable newScheduledThreadPool successfully runs delayed task
242	dl	1.11	*/
243	jsr166	1.42	public void testUnconfigurableScheduledExecutorService() throws Exception {
244	jsr166	1.35	ScheduledExecutorService p =
245			Executors.unconfigurableScheduledExecutorService
246			(Executors.newScheduledThreadPool(2));
247			try {
248	jsr166	1.42	final CountDownLatch proceed = new CountDownLatch(1);
249	jsr166	1.35	final Runnable task = new CheckedRunnable() {
250			public void realRun() {
251	jsr166	1.42	await(proceed);
252	jsr166	1.35	}};
253	jsr166	1.42	long startTime = System.nanoTime();
254	jsr166	1.35	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
255	jsr166	1.42	timeoutMillis(), MILLISECONDS);
256	jsr166	1.35	assertFalse(f.isDone());
257	jsr166	1.42	proceed.countDown();
258			assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
259	jsr166	1.36	assertSame(Boolean.TRUE, f.get());
260	jsr166	1.35	assertTrue(f.isDone());
261	jsr166	1.42	assertFalse(f.isCancelled());
262			assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
263	jsr166	1.35	} finally {
264			joinPool(p);
265			}
266	dl	1.11	}
267
268			/**
269	jsr166	1.34	* Future.get on submitted tasks will time out if they compute too long.
270	dl	1.2	*/
271	jsr166	1.23	public void testTimedCallable() throws Exception {
272	jsr166	1.40	final ExecutorService[] executors = {
273			Executors.newSingleThreadExecutor(),
274			Executors.newCachedThreadPool(),
275			Executors.newFixedThreadPool(2),
276			Executors.newScheduledThreadPool(2),
277			};
278
279	jsr166	1.33	final Runnable sleeper = new CheckedInterruptedRunnable() {
280			public void realRun() throws InterruptedException {
281	dl	1.39	delay(LONG_DELAY_MS);
282	jsr166	1.33	}};
283	jsr166	1.40
284			List<Thread> threads = new ArrayList<Thread>();
285			for (final ExecutorService executor : executors) {
286			threads.add(newStartedThread(new CheckedRunnable() {
287			public void realRun() {
288			Future future = executor.submit(sleeper);
289			assertFutureTimesOut(future);
290			}}));
291	dl	1.2	}
292	jsr166	1.40	for (Thread thread : threads)
293			awaitTermination(thread);
294			for (ExecutorService executor : executors)
295			joinPool(executor);
296	dl	1.2	}
297
298	dl	1.8	/**
299			* ThreadPoolExecutor using defaultThreadFactory has
300			* specified group, priority, daemon status, and name
301			*/
302	jsr166	1.23	public void testDefaultThreadFactory() throws Exception {
303	tim	1.9	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
304	jsr166	1.42	final CountDownLatch done = new CountDownLatch(1);
305	jsr166	1.31	Runnable r = new CheckedRunnable() {
306			public void realRun() {
307			try {
308			Thread current = Thread.currentThread();
309			assertTrue(!current.isDaemon());
310			assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
311			ThreadGroup g = current.getThreadGroup();
312			SecurityManager s = System.getSecurityManager();
313			if (s != null)
314			assertTrue(g == s.getThreadGroup());
315			else
316			assertTrue(g == egroup);
317			String name = current.getName();
318			assertTrue(name.endsWith("thread-1"));
319			} catch (SecurityException ok) {
320			// Also pass if not allowed to change setting
321	tim	1.9	}
322	jsr166	1.42	done.countDown();
323	jsr166	1.31	}};
324	tim	1.9	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
325	jsr166	1.20
326	tim	1.9	e.execute(r);
327	jsr166	1.42	await(done);
328
329	dl	1.14	try {
330			e.shutdown();
331	jsr166	1.21	} catch (SecurityException ok) {
332	dl	1.14	}
333	jsr166	1.20
334	jsr166	1.42	joinPool(e);
335	dl	1.8	}
336
337			/**
338			* ThreadPoolExecutor using privilegedThreadFactory has
339			* specified group, priority, daemon status, name,
340			* access control context and context class loader
341			*/
342	jsr166	1.23	public void testPrivilegedThreadFactory() throws Exception {
343	jsr166	1.42	final CountDownLatch done = new CountDownLatch(1);
344	jsr166	1.29	Runnable r = new CheckedRunnable() {
345			public void realRun() throws Exception {
346			final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
347			final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
348			final AccessControlContext thisacc = AccessController.getContext();
349			Runnable r = new CheckedRunnable() {
350			public void realRun() {
351	jsr166	1.25	Thread current = Thread.currentThread();
352	jsr166	1.29	assertTrue(!current.isDaemon());
353			assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
354	jsr166	1.25	ThreadGroup g = current.getThreadGroup();
355			SecurityManager s = System.getSecurityManager();
356			if (s != null)
357	jsr166	1.29	assertTrue(g == s.getThreadGroup());
358	jsr166	1.25	else
359	jsr166	1.29	assertTrue(g == egroup);
360	jsr166	1.25	String name = current.getName();
361	jsr166	1.29	assertTrue(name.endsWith("thread-1"));
362	jsr166	1.31	assertSame(thisccl, current.getContextClassLoader());
363			assertEquals(thisacc, AccessController.getContext());
364	jsr166	1.42	done.countDown();
365	jsr166	1.29	}};
366			ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
367			e.execute(r);
368	jsr166	1.42	await(done);
369	jsr166	1.29	e.shutdown();
370			joinPool(e);
371			}};
372
373			runWithPermissions(r,
374			new RuntimePermission("getClassLoader"),
375			new RuntimePermission("setContextClassLoader"),
376			new RuntimePermission("modifyThread"));
377			}
378	jsr166	1.20
379	jsr166	1.29	boolean haveCCLPermissions() {
380			SecurityManager sm = System.getSecurityManager();
381			if (sm != null) {
382			try {
383			sm.checkPermission(new RuntimePermission("setContextClassLoader"));
384			sm.checkPermission(new RuntimePermission("getClassLoader"));
385			} catch (AccessControlException e) {
386			return false;
387			}
388	tim	1.9	}
389	jsr166	1.29	return true;
390	dl	1.8	}
391	dl	1.11
392	dl	1.16	void checkCCL() {
393	dl	1.18	SecurityManager sm = System.getSecurityManager();
394			if (sm != null) {
395			sm.checkPermission(new RuntimePermission("setContextClassLoader"));
396	jsr166	1.19	sm.checkPermission(new RuntimePermission("getClassLoader"));
397	dl	1.18	}
398	dl	1.16	}
399
400			class CheckCCL implements Callable<Object> {
401	dl	1.11	public Object call() {
402	dl	1.16	checkCCL();
403	dl	1.11	return null;
404			}
405			}
406
407			/**
408			* Without class loader permissions, creating
409			* privilegedCallableUsingCurrentClassLoader throws ACE
410			*/
411			public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
412	jsr166	1.29	Runnable r = new CheckedRunnable() {
413			public void realRun() throws Exception {
414			if (System.getSecurityManager() == null)
415			return;
416			try {
417			Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
418			shouldThrow();
419			} catch (AccessControlException success) {}
420			}};
421	dl	1.16
422	jsr166	1.29	runWithoutPermissions(r);
423	dl	1.11	}
424
425			/**
426	dl	1.16	* With class loader permissions, calling
427			* privilegedCallableUsingCurrentClassLoader does not throw ACE
428	dl	1.11	*/
429	jsr166	1.42	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
430	jsr166	1.29	Runnable r = new CheckedRunnable() {
431			public void realRun() throws Exception {
432			Executors.privilegedCallableUsingCurrentClassLoader
433			(new NoOpCallable())
434			.call();
435			}};
436
437			runWithPermissions(r,
438			new RuntimePermission("getClassLoader"),
439			new RuntimePermission("setContextClassLoader"));
440	dl	1.11	}
441
442			/**
443			* Without permissions, calling privilegedCallable throws ACE
444			*/
445	jsr166	1.42	public void testPrivilegedCallableWithNoPrivs() throws Exception {
446	jsr166	1.32	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
447			Executors.privilegedCallable(new CheckCCL());
448
449	jsr166	1.29	Runnable r = new CheckedRunnable() {
450			public void realRun() throws Exception {
451			if (System.getSecurityManager() == null)
452			return;
453			Callable task = Executors.privilegedCallable(new CheckCCL());
454			try {
455			task.call();
456			shouldThrow();
457			} catch (AccessControlException success) {}
458			}};
459
460			runWithoutPermissions(r);
461
462			// It seems rather difficult to test that the
463			// AccessControlContext of the privilegedCallable is used
464			// instead of its caller. Below is a failed attempt to do
465			// that, which does not work because the AccessController
466			// cannot capture the internal state of the current Policy.
467			// It would be much more work to differentiate based on,
468			// e.g. CodeSource.
469
470			// final AccessControlContext[] noprivAcc = new AccessControlContext[1];
471			// final Callable[] task = new Callable[1];
472
473			// runWithPermissions
474			// (new CheckedRunnable() {
475			// public void realRun() {
476			// if (System.getSecurityManager() == null)
477			// return;
478			// noprivAcc[0] = AccessController.getContext();
479			// task[0] = Executors.privilegedCallable(new CheckCCL());
480			// try {
481			// AccessController.doPrivileged(new PrivilegedAction<Void>() {
482			// public Void run() {
483			// checkCCL();
484			// return null;
485			// }}, noprivAcc[0]);
486			// shouldThrow();
487			// } catch (AccessControlException success) {}
488			// }});
489
490			// runWithPermissions
491			// (new CheckedRunnable() {
492			// public void realRun() throws Exception {
493			// if (System.getSecurityManager() == null)
494			// return;
495			// // Verify that we have an underprivileged ACC
496			// try {
497			// AccessController.doPrivileged(new PrivilegedAction<Void>() {
498			// public Void run() {
499			// checkCCL();
500			// return null;
501			// }}, noprivAcc[0]);
502			// shouldThrow();
503			// } catch (AccessControlException success) {}
504
505			// try {
506			// task[0].call();
507			// shouldThrow();
508			// } catch (AccessControlException success) {}
509			// }},
510			// new RuntimePermission("getClassLoader"),
511			// new RuntimePermission("setContextClassLoader"));
512	dl	1.11	}
513
514			/**
515			* With permissions, calling privilegedCallable succeeds
516			*/
517	jsr166	1.42	public void testPrivilegedCallableWithPrivs() throws Exception {
518	jsr166	1.29	Runnable r = new CheckedRunnable() {
519			public void realRun() throws Exception {
520			Executors.privilegedCallable(new CheckCCL()).call();
521			}};
522
523	jsr166	1.38	runWithPermissions(r,
524	jsr166	1.29	new RuntimePermission("getClassLoader"),
525			new RuntimePermission("setContextClassLoader"));
526	dl	1.11	}
527
528			/**
529			* callable(Runnable) returns null when called
530	jsr166	1.20	*/
531	jsr166	1.23	public void testCallable1() throws Exception {
532			Callable c = Executors.callable(new NoOpRunnable());
533			assertNull(c.call());
534	dl	1.11	}
535
536			/**
537			* callable(Runnable, result) returns result when called
538	jsr166	1.20	*/
539	jsr166	1.23	public void testCallable2() throws Exception {
540			Callable c = Executors.callable(new NoOpRunnable(), one);
541	jsr166	1.27	assertSame(one, c.call());
542	dl	1.11	}
543
544			/**
545			* callable(PrivilegedAction) returns its result when called
546	jsr166	1.20	*/
547	jsr166	1.23	public void testCallable3() throws Exception {
548			Callable c = Executors.callable(new PrivilegedAction() {
549			public Object run() { return one; }});
550	jsr166	1.27	assertSame(one, c.call());
551	dl	1.11	}
552
553			/**
554			* callable(PrivilegedExceptionAction) returns its result when called
555	jsr166	1.20	*/
556	jsr166	1.23	public void testCallable4() throws Exception {
557			Callable c = Executors.callable(new PrivilegedExceptionAction() {
558			public Object run() { return one; }});
559	jsr166	1.27	assertSame(one, c.call());
560	dl	1.11	}
561
562			/**
563			* callable(null Runnable) throws NPE
564	jsr166	1.20	*/
565	dl	1.11	public void testCallableNPE1() {
566			try {
567	jsr166	1.23	Callable c = Executors.callable((Runnable) null);
568			shouldThrow();
569			} catch (NullPointerException success) {}
570	dl	1.11	}
571
572			/**
573			* callable(null, result) throws NPE
574	jsr166	1.20	*/
575	dl	1.11	public void testCallableNPE2() {
576			try {
577	jsr166	1.23	Callable c = Executors.callable((Runnable) null, one);
578			shouldThrow();
579			} catch (NullPointerException success) {}
580	dl	1.11	}
581
582			/**
583			* callable(null PrivilegedAction) throws NPE
584	jsr166	1.20	*/
585	dl	1.11	public void testCallableNPE3() {
586			try {
587	jsr166	1.23	Callable c = Executors.callable((PrivilegedAction) null);
588			shouldThrow();
589			} catch (NullPointerException success) {}
590	dl	1.11	}
591
592			/**
593			* callable(null PrivilegedExceptionAction) throws NPE
594	jsr166	1.20	*/
595	dl	1.11	public void testCallableNPE4() {
596			try {
597	jsr166	1.23	Callable c = Executors.callable((PrivilegedExceptionAction) null);
598			shouldThrow();
599			} catch (NullPointerException success) {}
600	dl	1.11	}
601
602	dl	1.1	}