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 CheckedInterruptedRunnable() {
            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 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
                }
            }};
        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"));
                        assertSame(thisccl, current.getContextClassLoader());
                        assertEquals(thisacc, 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 {
        // 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:	1.34
Committed:	Sat Oct 9 19:30:35 2010 UTC (13 years, 6 months ago) by jsr166
Branch:	MAIN
Changes since 1.33:	+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 = new CheckedInterruptedRunnable() {
227	public void realRun() throws InterruptedException {
228	Thread.sleep(LONG_DELAY_MS);
229	}};
230	for (ExecutorService executor :
231	new ExecutorService[] {
232	Executors.newSingleThreadExecutor(),
233	Executors.newCachedThreadPool(),
234	Executors.newFixedThreadPool(2),
235	Executors.newScheduledThreadPool(2),
236	}) {
237	try {
238	Future future = executor.submit(sleeper);
239	try {
240	future.get(SHORT_DELAY_MS, MILLISECONDS);
241	shouldThrow();
242	} catch (TimeoutException success) {
243	} finally {
244	future.cancel(true);
245	}
246	}
247	finally {
248	joinPool(executor);
249	}
250	}
251	}
252
253
254	/**
255	* ThreadPoolExecutor using defaultThreadFactory has
256	* specified group, priority, daemon status, and name
257	*/
258	public void testDefaultThreadFactory() throws Exception {
259	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
260	Runnable r = new CheckedRunnable() {
261	public void realRun() {
262	try {
263	Thread current = Thread.currentThread();
264	assertTrue(!current.isDaemon());
265	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
266	ThreadGroup g = current.getThreadGroup();
267	SecurityManager s = System.getSecurityManager();
268	if (s != null)
269	assertTrue(g == s.getThreadGroup());
270	else
271	assertTrue(g == egroup);
272	String name = current.getName();
273	assertTrue(name.endsWith("thread-1"));
274	} catch (SecurityException ok) {
275	// Also pass if not allowed to change setting
276	}
277	}};
278	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
279
280	e.execute(r);
281	try {
282	e.shutdown();
283	} catch (SecurityException ok) {
284	}
285
286	try {
287	Thread.sleep(SHORT_DELAY_MS);
288	} finally {
289	joinPool(e);
290	}
291	}
292
293	/**
294	* ThreadPoolExecutor using privilegedThreadFactory has
295	* specified group, priority, daemon status, name,
296	* access control context and context class loader
297	*/
298	public void testPrivilegedThreadFactory() throws Exception {
299	Runnable r = new CheckedRunnable() {
300	public void realRun() throws Exception {
301	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
302	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
303	final AccessControlContext thisacc = AccessController.getContext();
304	Runnable r = new CheckedRunnable() {
305	public void realRun() {
306	Thread current = Thread.currentThread();
307	assertTrue(!current.isDaemon());
308	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
309	ThreadGroup g = current.getThreadGroup();
310	SecurityManager s = System.getSecurityManager();
311	if (s != null)
312	assertTrue(g == s.getThreadGroup());
313	else
314	assertTrue(g == egroup);
315	String name = current.getName();
316	assertTrue(name.endsWith("thread-1"));
317	assertSame(thisccl, current.getContextClassLoader());
318	assertEquals(thisacc, AccessController.getContext());
319	}};
320	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
321	e.execute(r);
322	e.shutdown();
323	Thread.sleep(SHORT_DELAY_MS);
324	joinPool(e);
325	}};
326
327	runWithPermissions(r,
328	new RuntimePermission("getClassLoader"),
329	new RuntimePermission("setContextClassLoader"),
330	new RuntimePermission("modifyThread"));
331	}
332
333	boolean haveCCLPermissions() {
334	SecurityManager sm = System.getSecurityManager();
335	if (sm != null) {
336	try {
337	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
338	sm.checkPermission(new RuntimePermission("getClassLoader"));
339	} catch (AccessControlException e) {
340	return false;
341	}
342	}
343	return true;
344	}
345
346	void checkCCL() {
347	SecurityManager sm = System.getSecurityManager();
348	if (sm != null) {
349	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
350	sm.checkPermission(new RuntimePermission("getClassLoader"));
351	}
352	}
353
354	class CheckCCL implements Callable<Object> {
355	public Object call() {
356	checkCCL();
357	return null;
358	}
359	}
360
361
362	/**
363	* Without class loader permissions, creating
364	* privilegedCallableUsingCurrentClassLoader throws ACE
365	*/
366	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
367	Runnable r = new CheckedRunnable() {
368	public void realRun() throws Exception {
369	if (System.getSecurityManager() == null)
370	return;
371	try {
372	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
373	shouldThrow();
374	} catch (AccessControlException success) {}
375	}};
376
377	runWithoutPermissions(r);
378	}
379
380	/**
381	* With class loader permissions, calling
382	* privilegedCallableUsingCurrentClassLoader does not throw ACE
383	*/
384	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
385	Runnable r = new CheckedRunnable() {
386	public void realRun() throws Exception {
387	Executors.privilegedCallableUsingCurrentClassLoader
388	(new NoOpCallable())
389	.call();
390	}};
391
392	runWithPermissions(r,
393	new RuntimePermission("getClassLoader"),
394	new RuntimePermission("setContextClassLoader"));
395	}
396
397	/**
398	* Without permissions, calling privilegedCallable throws ACE
399	*/
400	public void testprivilegedCallableWithNoPrivs() throws Exception {
401	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
402	Executors.privilegedCallable(new CheckCCL());
403
404	Runnable r = new CheckedRunnable() {
405	public void realRun() throws Exception {
406	if (System.getSecurityManager() == null)
407	return;
408	Callable task = Executors.privilegedCallable(new CheckCCL());
409	try {
410	task.call();
411	shouldThrow();
412	} catch (AccessControlException success) {}
413	}};
414
415	runWithoutPermissions(r);
416
417	// It seems rather difficult to test that the
418	// AccessControlContext of the privilegedCallable is used
419	// instead of its caller. Below is a failed attempt to do
420	// that, which does not work because the AccessController
421	// cannot capture the internal state of the current Policy.
422	// It would be much more work to differentiate based on,
423	// e.g. CodeSource.
424
425	// final AccessControlContext[] noprivAcc = new AccessControlContext[1];
426	// final Callable[] task = new Callable[1];
427
428	// runWithPermissions
429	// (new CheckedRunnable() {
430	// public void realRun() {
431	// if (System.getSecurityManager() == null)
432	// return;
433	// noprivAcc[0] = AccessController.getContext();
434	// task[0] = Executors.privilegedCallable(new CheckCCL());
435	// try {
436	// AccessController.doPrivileged(new PrivilegedAction<Void>() {
437	// public Void run() {
438	// checkCCL();
439	// return null;
440	// }}, noprivAcc[0]);
441	// shouldThrow();
442	// } catch (AccessControlException success) {}
443	// }});
444
445	// runWithPermissions
446	// (new CheckedRunnable() {
447	// public void realRun() throws Exception {
448	// if (System.getSecurityManager() == null)
449	// return;
450	// // Verify that we have an underprivileged ACC
451	// try {
452	// AccessController.doPrivileged(new PrivilegedAction<Void>() {
453	// public Void run() {
454	// checkCCL();
455	// return null;
456	// }}, noprivAcc[0]);
457	// shouldThrow();
458	// } catch (AccessControlException success) {}
459
460	// try {
461	// task[0].call();
462	// shouldThrow();
463	// } catch (AccessControlException success) {}
464	// }},
465	// new RuntimePermission("getClassLoader"),
466	// new RuntimePermission("setContextClassLoader"));
467	}
468
469	/**
470	* With permissions, calling privilegedCallable succeeds
471	*/
472	public void testprivilegedCallableWithPrivs() throws Exception {
473	Runnable r = new CheckedRunnable() {
474	public void realRun() throws Exception {
475	Executors.privilegedCallable(new CheckCCL()).call();
476	}};
477
478	runWithPermissions(r,
479	new RuntimePermission("getClassLoader"),
480	new RuntimePermission("setContextClassLoader"));
481	}
482
483	/**
484	* callable(Runnable) returns null when called
485	*/
486	public void testCallable1() throws Exception {
487	Callable c = Executors.callable(new NoOpRunnable());
488	assertNull(c.call());
489	}
490
491	/**
492	* callable(Runnable, result) returns result when called
493	*/
494	public void testCallable2() throws Exception {
495	Callable c = Executors.callable(new NoOpRunnable(), one);
496	assertSame(one, c.call());
497	}
498
499	/**
500	* callable(PrivilegedAction) returns its result when called
501	*/
502	public void testCallable3() throws Exception {
503	Callable c = Executors.callable(new PrivilegedAction() {
504	public Object run() { return one; }});
505	assertSame(one, c.call());
506	}
507
508	/**
509	* callable(PrivilegedExceptionAction) returns its result when called
510	*/
511	public void testCallable4() throws Exception {
512	Callable c = Executors.callable(new PrivilegedExceptionAction() {
513	public Object run() { return one; }});
514	assertSame(one, c.call());
515	}
516
517
518	/**
519	* callable(null Runnable) throws NPE
520	*/
521	public void testCallableNPE1() {
522	try {
523	Callable c = Executors.callable((Runnable) null);
524	shouldThrow();
525	} catch (NullPointerException success) {}
526	}
527
528	/**
529	* callable(null, result) throws NPE
530	*/
531	public void testCallableNPE2() {
532	try {
533	Callable c = Executors.callable((Runnable) null, one);
534	shouldThrow();
535	} catch (NullPointerException success) {}
536	}
537
538	/**
539	* callable(null PrivilegedAction) throws NPE
540	*/
541	public void testCallableNPE3() {
542	try {
543	Callable c = Executors.callable((PrivilegedAction) null);
544	shouldThrow();
545	} catch (NullPointerException success) {}
546	}
547
548	/**
549	* callable(null PrivilegedExceptionAction) throws NPE
550	*/
551	public void testCallableNPE4() {
552	try {
553	Callable c = Executors.callable((PrivilegedExceptionAction) null);
554	shouldThrow();
555	} catch (NullPointerException success) {}
556	}
557
558
559	}