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/licenses/publicdomain
 * Other contributors include Andrew Wright, Jeffrey Hayes,
 * Pat Fisher, Mike Judd.
 */


import junit.framework.*;
import java.util.*;
import java.util.concurrent.*;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import java.math.BigInteger;
import java.security.*;

public class ExecutorsTest extends JSR166TestCase {
    public static void main(String[] args) {
        junit.textui.TestRunner.run(suite());
    }
    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 {
        TrackedCallable callable = new TrackedCallable();
        ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
        Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
        assertFalse(callable.done);
        Thread.sleep(MEDIUM_DELAY_MS);
        assertTrue(callable.done);
        assertEquals(Boolean.TRUE, f.get());
        joinPool(p1);
    }

    /**
     * a newScheduledThreadPool successfully runs delayed task
     */
    public void testnewScheduledThreadPool() throws Exception {
        TrackedCallable callable = new TrackedCallable();
        ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
        Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
        assertFalse(callable.done);
        Thread.sleep(MEDIUM_DELAY_MS);
        assertTrue(callable.done);
        assertEquals(Boolean.TRUE, f.get());
        joinPool(p1);
    }

    /**
     * an unconfigurable newScheduledThreadPool successfully runs delayed task
     */
    public void testunconfigurableScheduledExecutorService() throws Exception {
        TrackedCallable callable = new TrackedCallable();
        ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
        Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
        assertFalse(callable.done);
        Thread.sleep(MEDIUM_DELAY_MS);
        assertTrue(callable.done);
        assertEquals(Boolean.TRUE, f.get());
        joinPool(p1);
    }

    /**
     *  Future.get on submitted tasks will time out if they compute too long.
     */
    public void testTimedCallable() throws Exception {
        final Runnable sleeper =
            new RunnableShouldThrow(InterruptedException.class) {
                public void realRun() throws InterruptedException {
                    Thread.sleep(LONG_DELAY_MS);
                }};
        for (ExecutorService executor :
                 new ExecutorService[] {
                     Executors.newSingleThreadExecutor(),
                     Executors.newCachedThreadPool(),
                     Executors.newFixedThreadPool(2),
                     Executors.newScheduledThreadPool(2),
                 }) {
            try {
                Future future = executor.submit(sleeper);
                try {
                    future.get(SHORT_DELAY_MS, MILLISECONDS);
                    shouldThrow();
                } catch (TimeoutException success) {
                } finally {
                    future.cancel(true);
                }
            }
            finally {
                joinPool(executor);
            }
        }
    }


    /**
     * ThreadPoolExecutor using defaultThreadFactory has
     * specified group, priority, daemon status, and name
     */
    public void testDefaultThreadFactory() throws Exception {
        final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
        Runnable r = new Runnable() {
                public void run() {
                    try {
                        Thread current = Thread.currentThread();
                        threadAssertTrue(!current.isDaemon());
                        threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
                        ThreadGroup g = current.getThreadGroup();
                        SecurityManager s = System.getSecurityManager();
                        if (s != null)
                            threadAssertTrue(g == s.getThreadGroup());
                        else
                            threadAssertTrue(g == egroup);
                        String name = current.getName();
                        threadAssertTrue(name.endsWith("thread-1"));
                    } catch (SecurityException ok) {
                        // Also pass if not allowed to change setting
                    }
                }
            };
        ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());

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

        try {
            Thread.sleep(SHORT_DELAY_MS);
        } finally {
            joinPool(e);
        }
    }

    /**
     * ThreadPoolExecutor using privilegedThreadFactory has
     * specified group, priority, daemon status, name,
     * access control context and context class loader
     */
    public void testPrivilegedThreadFactory() throws Exception {
        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"));
                        assertTrue(thisccl == current.getContextClassLoader());
                        assertTrue(thisacc.equals(AccessController.getContext()));
                    }};
                ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
                e.execute(r);
                e.shutdown();
                Thread.sleep(SHORT_DELAY_MS);
                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 {
        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:	1.30
Committed:	Wed Aug 25 00:07:03 2010 UTC (13 years, 8 months ago) by jsr166
Branch:	MAIN
Changes since 1.29:	+1 -1 lines
Log Message:	whitespace
#	Content
1	/*
2	* Written by Doug Lea with assistance from members of JCP JSR-166
3	* Expert Group and released to the public domain, as explained at
4	* http://creativecommons.org/licenses/publicdomain
5	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	* Pat Fisher, Mike Judd.
7	*/
8
9
10	import junit.framework.*;
11	import java.util.*;
12	import java.util.concurrent.*;
13	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14	import java.math.BigInteger;
15	import java.security.*;
16
17	public class ExecutorsTest extends JSR166TestCase {
18	public static void main(String[] args) {
19	junit.textui.TestRunner.run(suite());
20	}
21	public static Test suite() {
22	return new TestSuite(ExecutorsTest.class);
23	}
24
25	/**
26	* A newCachedThreadPool can execute runnables
27	*/
28	public void testNewCachedThreadPool1() {
29	ExecutorService e = Executors.newCachedThreadPool();
30	e.execute(new NoOpRunnable());
31	e.execute(new NoOpRunnable());
32	e.execute(new NoOpRunnable());
33	joinPool(e);
34	}
35
36	/**
37	* A newCachedThreadPool with given ThreadFactory can execute runnables
38	*/
39	public void testNewCachedThreadPool2() {
40	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
41	e.execute(new NoOpRunnable());
42	e.execute(new NoOpRunnable());
43	e.execute(new NoOpRunnable());
44	joinPool(e);
45	}
46
47	/**
48	* A newCachedThreadPool with null ThreadFactory throws NPE
49	*/
50	public void testNewCachedThreadPool3() {
51	try {
52	ExecutorService e = Executors.newCachedThreadPool(null);
53	shouldThrow();
54	} catch (NullPointerException success) {}
55	}
56
57
58	/**
59	* A new SingleThreadExecutor can execute runnables
60	*/
61	public void testNewSingleThreadExecutor1() {
62	ExecutorService e = Executors.newSingleThreadExecutor();
63	e.execute(new NoOpRunnable());
64	e.execute(new NoOpRunnable());
65	e.execute(new NoOpRunnable());
66	joinPool(e);
67	}
68
69	/**
70	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
71	*/
72	public void testNewSingleThreadExecutor2() {
73	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
74	e.execute(new NoOpRunnable());
75	e.execute(new NoOpRunnable());
76	e.execute(new NoOpRunnable());
77	joinPool(e);
78	}
79
80	/**
81	* A new SingleThreadExecutor with null ThreadFactory throws NPE
82	*/
83	public void testNewSingleThreadExecutor3() {
84	try {
85	ExecutorService e = Executors.newSingleThreadExecutor(null);
86	shouldThrow();
87	} catch (NullPointerException success) {}
88	}
89
90	/**
91	* A new SingleThreadExecutor cannot be casted to concrete implementation
92	*/
93	public void testCastNewSingleThreadExecutor() {
94	ExecutorService e = Executors.newSingleThreadExecutor();
95	try {
96	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
97	shouldThrow();
98	} catch (ClassCastException success) {
99	} finally {
100	joinPool(e);
101	}
102	}
103
104
105	/**
106	* A new newFixedThreadPool can execute runnables
107	*/
108	public void testNewFixedThreadPool1() {
109	ExecutorService e = Executors.newFixedThreadPool(2);
110	e.execute(new NoOpRunnable());
111	e.execute(new NoOpRunnable());
112	e.execute(new NoOpRunnable());
113	joinPool(e);
114	}
115
116	/**
117	* A new newFixedThreadPool with given ThreadFactory can execute runnables
118	*/
119	public void testNewFixedThreadPool2() {
120	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
121	e.execute(new NoOpRunnable());
122	e.execute(new NoOpRunnable());
123	e.execute(new NoOpRunnable());
124	joinPool(e);
125	}
126
127	/**
128	* A new newFixedThreadPool with null ThreadFactory throws NPE
129	*/
130	public void testNewFixedThreadPool3() {
131	try {
132	ExecutorService e = Executors.newFixedThreadPool(2, null);
133	shouldThrow();
134	} catch (NullPointerException success) {}
135	}
136
137	/**
138	* A new newFixedThreadPool with 0 threads throws IAE
139	*/
140	public void testNewFixedThreadPool4() {
141	try {
142	ExecutorService e = Executors.newFixedThreadPool(0);
143	shouldThrow();
144	} catch (IllegalArgumentException success) {}
145	}
146
147
148	/**
149	* An unconfigurable newFixedThreadPool can execute runnables
150	*/
151	public void testunconfigurableExecutorService() {
152	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
153	e.execute(new NoOpRunnable());
154	e.execute(new NoOpRunnable());
155	e.execute(new NoOpRunnable());
156	joinPool(e);
157	}
158
159	/**
160	* unconfigurableExecutorService(null) throws NPE
161	*/
162	public void testunconfigurableExecutorServiceNPE() {
163	try {
164	ExecutorService e = Executors.unconfigurableExecutorService(null);
165	shouldThrow();
166	} catch (NullPointerException success) {}
167	}
168
169	/**
170	* unconfigurableScheduledExecutorService(null) throws NPE
171	*/
172	public void testunconfigurableScheduledExecutorServiceNPE() {
173	try {
174	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
175	shouldThrow();
176	} catch (NullPointerException success) {}
177	}
178
179
180	/**
181	* a newSingleThreadScheduledExecutor successfully runs delayed task
182	*/
183	public void testNewSingleThreadScheduledExecutor() throws Exception {
184	TrackedCallable callable = new TrackedCallable();
185	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
186	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
187	assertFalse(callable.done);
188	Thread.sleep(MEDIUM_DELAY_MS);
189	assertTrue(callable.done);
190	assertEquals(Boolean.TRUE, f.get());
191	joinPool(p1);
192	}
193
194	/**
195	* a newScheduledThreadPool successfully runs delayed task
196	*/
197	public void testnewScheduledThreadPool() throws Exception {
198	TrackedCallable callable = new TrackedCallable();
199	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
200	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
201	assertFalse(callable.done);
202	Thread.sleep(MEDIUM_DELAY_MS);
203	assertTrue(callable.done);
204	assertEquals(Boolean.TRUE, f.get());
205	joinPool(p1);
206	}
207
208	/**
209	* an unconfigurable newScheduledThreadPool successfully runs delayed task
210	*/
211	public void testunconfigurableScheduledExecutorService() throws Exception {
212	TrackedCallable callable = new TrackedCallable();
213	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
214	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
215	assertFalse(callable.done);
216	Thread.sleep(MEDIUM_DELAY_MS);
217	assertTrue(callable.done);
218	assertEquals(Boolean.TRUE, f.get());
219	joinPool(p1);
220	}
221
222	/**
223	* Future.get on submitted tasks will time out if they compute too long.
224	*/
225	public void testTimedCallable() throws Exception {
226	final Runnable sleeper =
227	new RunnableShouldThrow(InterruptedException.class) {
228	public void realRun() throws InterruptedException {
229	Thread.sleep(LONG_DELAY_MS);
230	}};
231	for (ExecutorService executor :
232	new ExecutorService[] {
233	Executors.newSingleThreadExecutor(),
234	Executors.newCachedThreadPool(),
235	Executors.newFixedThreadPool(2),
236	Executors.newScheduledThreadPool(2),
237	}) {
238	try {
239	Future future = executor.submit(sleeper);
240	try {
241	future.get(SHORT_DELAY_MS, MILLISECONDS);
242	shouldThrow();
243	} catch (TimeoutException success) {
244	} finally {
245	future.cancel(true);
246	}
247	}
248	finally {
249	joinPool(executor);
250	}
251	}
252	}
253
254
255	/**
256	* ThreadPoolExecutor using defaultThreadFactory has
257	* specified group, priority, daemon status, and name
258	*/
259	public void testDefaultThreadFactory() throws Exception {
260	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
261	Runnable r = new Runnable() {
262	public void run() {
263	try {
264	Thread current = Thread.currentThread();
265	threadAssertTrue(!current.isDaemon());
266	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
267	ThreadGroup g = current.getThreadGroup();
268	SecurityManager s = System.getSecurityManager();
269	if (s != null)
270	threadAssertTrue(g == s.getThreadGroup());
271	else
272	threadAssertTrue(g == egroup);
273	String name = current.getName();
274	threadAssertTrue(name.endsWith("thread-1"));
275	} catch (SecurityException ok) {
276	// Also pass if not allowed to change setting
277	}
278	}
279	};
280	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
281
282	e.execute(r);
283	try {
284	e.shutdown();
285	} catch (SecurityException ok) {
286	}
287
288	try {
289	Thread.sleep(SHORT_DELAY_MS);
290	} finally {
291	joinPool(e);
292	}
293	}
294
295	/**
296	* ThreadPoolExecutor using privilegedThreadFactory has
297	* specified group, priority, daemon status, name,
298	* access control context and context class loader
299	*/
300	public void testPrivilegedThreadFactory() throws Exception {
301	Runnable r = new CheckedRunnable() {
302	public void realRun() throws Exception {
303	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
304	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
305	final AccessControlContext thisacc = AccessController.getContext();
306	Runnable r = new CheckedRunnable() {
307	public void realRun() {
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	assertTrue(thisccl == current.getContextClassLoader());
320	assertTrue(thisacc.equals(AccessController.getContext()));
321	}};
322	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
323	e.execute(r);
324	e.shutdown();
325	Thread.sleep(SHORT_DELAY_MS);
326	joinPool(e);
327	}};
328
329	runWithPermissions(r,
330	new RuntimePermission("getClassLoader"),
331	new RuntimePermission("setContextClassLoader"),
332	new RuntimePermission("modifyThread"));
333	}
334
335	boolean haveCCLPermissions() {
336	SecurityManager sm = System.getSecurityManager();
337	if (sm != null) {
338	try {
339	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
340	sm.checkPermission(new RuntimePermission("getClassLoader"));
341	} catch (AccessControlException e) {
342	return false;
343	}
344	}
345	return true;
346	}
347
348	void checkCCL() {
349	SecurityManager sm = System.getSecurityManager();
350	if (sm != null) {
351	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
352	sm.checkPermission(new RuntimePermission("getClassLoader"));
353	}
354	}
355
356	class CheckCCL implements Callable<Object> {
357	public Object call() {
358	checkCCL();
359	return null;
360	}
361	}
362
363
364	/**
365	* Without class loader permissions, creating
366	* privilegedCallableUsingCurrentClassLoader throws ACE
367	*/
368	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
369	Runnable r = new CheckedRunnable() {
370	public void realRun() throws Exception {
371	if (System.getSecurityManager() == null)
372	return;
373	try {
374	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
375	shouldThrow();
376	} catch (AccessControlException success) {}
377	}};
378
379	runWithoutPermissions(r);
380	}
381
382	/**
383	* With class loader permissions, calling
384	* privilegedCallableUsingCurrentClassLoader does not throw ACE
385	*/
386	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
387	Runnable r = new CheckedRunnable() {
388	public void realRun() throws Exception {
389	Executors.privilegedCallableUsingCurrentClassLoader
390	(new NoOpCallable())
391	.call();
392	}};
393
394	runWithPermissions(r,
395	new RuntimePermission("getClassLoader"),
396	new RuntimePermission("setContextClassLoader"));
397	}
398
399	/**
400	* Without permissions, calling privilegedCallable throws ACE
401	*/
402	public void testprivilegedCallableWithNoPrivs() throws Exception {
403	Runnable r = new CheckedRunnable() {
404	public void realRun() throws Exception {
405	if (System.getSecurityManager() == null)
406	return;
407	Callable task = Executors.privilegedCallable(new CheckCCL());
408	try {
409	task.call();
410	shouldThrow();
411	} catch (AccessControlException success) {}
412	}};
413
414	runWithoutPermissions(r);
415
416	// It seems rather difficult to test that the
417	// AccessControlContext of the privilegedCallable is used
418	// instead of its caller. Below is a failed attempt to do
419	// that, which does not work because the AccessController
420	// cannot capture the internal state of the current Policy.
421	// It would be much more work to differentiate based on,
422	// e.g. CodeSource.
423
424	// final AccessControlContext[] noprivAcc = new AccessControlContext[1];
425	// final Callable[] task = new Callable[1];
426
427	// runWithPermissions
428	// (new CheckedRunnable() {
429	// public void realRun() {
430	// if (System.getSecurityManager() == null)
431	// return;
432	// noprivAcc[0] = AccessController.getContext();
433	// task[0] = Executors.privilegedCallable(new CheckCCL());
434	// try {
435	// AccessController.doPrivileged(new PrivilegedAction<Void>() {
436	// public Void run() {
437	// checkCCL();
438	// return null;
439	// }}, noprivAcc[0]);
440	// shouldThrow();
441	// } catch (AccessControlException success) {}
442	// }});
443
444	// runWithPermissions
445	// (new CheckedRunnable() {
446	// public void realRun() throws Exception {
447	// if (System.getSecurityManager() == null)
448	// return;
449	// // Verify that we have an underprivileged ACC
450	// try {
451	// AccessController.doPrivileged(new PrivilegedAction<Void>() {
452	// public Void run() {
453	// checkCCL();
454	// return null;
455	// }}, noprivAcc[0]);
456	// shouldThrow();
457	// } catch (AccessControlException success) {}
458
459	// try {
460	// task[0].call();
461	// shouldThrow();
462	// } catch (AccessControlException success) {}
463	// }},
464	// new RuntimePermission("getClassLoader"),
465	// new RuntimePermission("setContextClassLoader"));
466	}
467
468	/**
469	* With permissions, calling privilegedCallable succeeds
470	*/
471	public void testprivilegedCallableWithPrivs() throws Exception {
472	Runnable r = new CheckedRunnable() {
473	public void realRun() throws Exception {
474	Executors.privilegedCallable(new CheckCCL()).call();
475	}};
476
477	runWithPermissions(r,
478	new RuntimePermission("getClassLoader"),
479	new RuntimePermission("setContextClassLoader"));
480	}
481
482	/**
483	* callable(Runnable) returns null when called
484	*/
485	public void testCallable1() throws Exception {
486	Callable c = Executors.callable(new NoOpRunnable());
487	assertNull(c.call());
488	}
489
490	/**
491	* callable(Runnable, result) returns result when called
492	*/
493	public void testCallable2() throws Exception {
494	Callable c = Executors.callable(new NoOpRunnable(), one);
495	assertSame(one, c.call());
496	}
497
498	/**
499	* callable(PrivilegedAction) returns its result when called
500	*/
501	public void testCallable3() throws Exception {
502	Callable c = Executors.callable(new PrivilegedAction() {
503	public Object run() { return one; }});
504	assertSame(one, c.call());
505	}
506
507	/**
508	* callable(PrivilegedExceptionAction) returns its result when called
509	*/
510	public void testCallable4() throws Exception {
511	Callable c = Executors.callable(new PrivilegedExceptionAction() {
512	public Object run() { return one; }});
513	assertSame(one, c.call());
514	}
515
516
517	/**
518	* callable(null Runnable) throws NPE
519	*/
520	public void testCallableNPE1() {
521	try {
522	Callable c = Executors.callable((Runnable) null);
523	shouldThrow();
524	} catch (NullPointerException success) {}
525	}
526
527	/**
528	* callable(null, result) throws NPE
529	*/
530	public void testCallableNPE2() {
531	try {
532	Callable c = Executors.callable((Runnable) null, one);
533	shouldThrow();
534	} catch (NullPointerException success) {}
535	}
536
537	/**
538	* callable(null PrivilegedAction) throws NPE
539	*/
540	public void testCallableNPE3() {
541	try {
542	Callable c = Executors.callable((PrivilegedAction) null);
543	shouldThrow();
544	} catch (NullPointerException success) {}
545	}
546
547	/**
548	* callable(null PrivilegedExceptionAction) throws NPE
549	*/
550	public void testCallableNPE4() {
551	try {
552	Callable c = Executors.callable((PrivilegedExceptionAction) null);
553	shouldThrow();
554	} catch (NullPointerException success) {}
555	}
556
557
558	}