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 {
        ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
        try {
            final CountDownLatch done = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    done.countDown();
                }};
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  SHORT_DELAY_MS, MILLISECONDS);
            assertFalse(f.isDone());
            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
            assertTrue(f.isDone());
            assertEquals(Boolean.TRUE, f.get());
        } finally {
            joinPool(p);
        }
    }

    /**
     * a newScheduledThreadPool successfully runs delayed task
     */
    public void testnewScheduledThreadPool() throws Exception {
        ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
        try {
            final CountDownLatch done = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    done.countDown();
                }};
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  SHORT_DELAY_MS, MILLISECONDS);
            assertFalse(f.isDone());
            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
            assertTrue(f.isDone());
            assertEquals(Boolean.TRUE, f.get());
        } 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 done = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    done.countDown();
                }};
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  SHORT_DELAY_MS, MILLISECONDS);
            assertFalse(f.isDone());
            assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
            assertTrue(f.isDone());
            assertEquals(Boolean.TRUE, f.get());
        } finally {
            joinPool(p);
        }
    }

    /**
     * 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:	1.35
Committed:	Mon Oct 11 08:47:04 2010 UTC (13 years, 6 months ago) by jsr166
Branch:	MAIN
Changes since 1.34:	+50 -24 lines
Log Message:	optimize runtime
#	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	ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
185	try {
186	final CountDownLatch done = new CountDownLatch(1);
187	final Runnable task = new CheckedRunnable() {
188	public void realRun() {
189	done.countDown();
190	}};
191	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
192	SHORT_DELAY_MS, MILLISECONDS);
193	assertFalse(f.isDone());
194	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
195	assertTrue(f.isDone());
196	assertEquals(Boolean.TRUE, f.get());
197	} finally {
198	joinPool(p);
199	}
200	}
201
202	/**
203	* a newScheduledThreadPool successfully runs delayed task
204	*/
205	public void testnewScheduledThreadPool() throws Exception {
206	ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
207	try {
208	final CountDownLatch done = new CountDownLatch(1);
209	final Runnable task = new CheckedRunnable() {
210	public void realRun() {
211	done.countDown();
212	}};
213	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
214	SHORT_DELAY_MS, MILLISECONDS);
215	assertFalse(f.isDone());
216	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
217	assertTrue(f.isDone());
218	assertEquals(Boolean.TRUE, f.get());
219	} finally {
220	joinPool(p);
221	}
222	}
223
224	/**
225	* an unconfigurable newScheduledThreadPool successfully runs delayed task
226	*/
227	public void testunconfigurableScheduledExecutorService() throws Exception {
228	ScheduledExecutorService p =
229	Executors.unconfigurableScheduledExecutorService
230	(Executors.newScheduledThreadPool(2));
231	try {
232	final CountDownLatch done = new CountDownLatch(1);
233	final Runnable task = new CheckedRunnable() {
234	public void realRun() {
235	done.countDown();
236	}};
237	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
238	SHORT_DELAY_MS, MILLISECONDS);
239	assertFalse(f.isDone());
240	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
241	assertTrue(f.isDone());
242	assertEquals(Boolean.TRUE, f.get());
243	} finally {
244	joinPool(p);
245	}
246	}
247
248	/**
249	* Future.get on submitted tasks will time out if they compute too long.
250	*/
251	public void testTimedCallable() throws Exception {
252	final Runnable sleeper = new CheckedInterruptedRunnable() {
253	public void realRun() throws InterruptedException {
254	Thread.sleep(LONG_DELAY_MS);
255	}};
256	for (ExecutorService executor :
257	new ExecutorService[] {
258	Executors.newSingleThreadExecutor(),
259	Executors.newCachedThreadPool(),
260	Executors.newFixedThreadPool(2),
261	Executors.newScheduledThreadPool(2),
262	}) {
263	try {
264	Future future = executor.submit(sleeper);
265	try {
266	future.get(SHORT_DELAY_MS, MILLISECONDS);
267	shouldThrow();
268	} catch (TimeoutException success) {
269	} finally {
270	future.cancel(true);
271	}
272	}
273	finally {
274	joinPool(executor);
275	}
276	}
277	}
278
279
280	/**
281	* ThreadPoolExecutor using defaultThreadFactory has
282	* specified group, priority, daemon status, and name
283	*/
284	public void testDefaultThreadFactory() throws Exception {
285	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
286	Runnable r = new CheckedRunnable() {
287	public void realRun() {
288	try {
289	Thread current = Thread.currentThread();
290	assertTrue(!current.isDaemon());
291	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
292	ThreadGroup g = current.getThreadGroup();
293	SecurityManager s = System.getSecurityManager();
294	if (s != null)
295	assertTrue(g == s.getThreadGroup());
296	else
297	assertTrue(g == egroup);
298	String name = current.getName();
299	assertTrue(name.endsWith("thread-1"));
300	} catch (SecurityException ok) {
301	// Also pass if not allowed to change setting
302	}
303	}};
304	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
305
306	e.execute(r);
307	try {
308	e.shutdown();
309	} catch (SecurityException ok) {
310	}
311
312	try {
313	Thread.sleep(SHORT_DELAY_MS);
314	} finally {
315	joinPool(e);
316	}
317	}
318
319	/**
320	* ThreadPoolExecutor using privilegedThreadFactory has
321	* specified group, priority, daemon status, name,
322	* access control context and context class loader
323	*/
324	public void testPrivilegedThreadFactory() throws Exception {
325	Runnable r = new CheckedRunnable() {
326	public void realRun() throws Exception {
327	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
328	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
329	final AccessControlContext thisacc = AccessController.getContext();
330	Runnable r = new CheckedRunnable() {
331	public void realRun() {
332	Thread current = Thread.currentThread();
333	assertTrue(!current.isDaemon());
334	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
335	ThreadGroup g = current.getThreadGroup();
336	SecurityManager s = System.getSecurityManager();
337	if (s != null)
338	assertTrue(g == s.getThreadGroup());
339	else
340	assertTrue(g == egroup);
341	String name = current.getName();
342	assertTrue(name.endsWith("thread-1"));
343	assertSame(thisccl, current.getContextClassLoader());
344	assertEquals(thisacc, AccessController.getContext());
345	}};
346	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
347	e.execute(r);
348	e.shutdown();
349	Thread.sleep(SHORT_DELAY_MS);
350	joinPool(e);
351	}};
352
353	runWithPermissions(r,
354	new RuntimePermission("getClassLoader"),
355	new RuntimePermission("setContextClassLoader"),
356	new RuntimePermission("modifyThread"));
357	}
358
359	boolean haveCCLPermissions() {
360	SecurityManager sm = System.getSecurityManager();
361	if (sm != null) {
362	try {
363	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
364	sm.checkPermission(new RuntimePermission("getClassLoader"));
365	} catch (AccessControlException e) {
366	return false;
367	}
368	}
369	return true;
370	}
371
372	void checkCCL() {
373	SecurityManager sm = System.getSecurityManager();
374	if (sm != null) {
375	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
376	sm.checkPermission(new RuntimePermission("getClassLoader"));
377	}
378	}
379
380	class CheckCCL implements Callable<Object> {
381	public Object call() {
382	checkCCL();
383	return null;
384	}
385	}
386
387
388	/**
389	* Without class loader permissions, creating
390	* privilegedCallableUsingCurrentClassLoader throws ACE
391	*/
392	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
393	Runnable r = new CheckedRunnable() {
394	public void realRun() throws Exception {
395	if (System.getSecurityManager() == null)
396	return;
397	try {
398	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
399	shouldThrow();
400	} catch (AccessControlException success) {}
401	}};
402
403	runWithoutPermissions(r);
404	}
405
406	/**
407	* With class loader permissions, calling
408	* privilegedCallableUsingCurrentClassLoader does not throw ACE
409	*/
410	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
411	Runnable r = new CheckedRunnable() {
412	public void realRun() throws Exception {
413	Executors.privilegedCallableUsingCurrentClassLoader
414	(new NoOpCallable())
415	.call();
416	}};
417
418	runWithPermissions(r,
419	new RuntimePermission("getClassLoader"),
420	new RuntimePermission("setContextClassLoader"));
421	}
422
423	/**
424	* Without permissions, calling privilegedCallable throws ACE
425	*/
426	public void testprivilegedCallableWithNoPrivs() throws Exception {
427	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
428	Executors.privilegedCallable(new CheckCCL());
429
430	Runnable r = new CheckedRunnable() {
431	public void realRun() throws Exception {
432	if (System.getSecurityManager() == null)
433	return;
434	Callable task = Executors.privilegedCallable(new CheckCCL());
435	try {
436	task.call();
437	shouldThrow();
438	} catch (AccessControlException success) {}
439	}};
440
441	runWithoutPermissions(r);
442
443	// It seems rather difficult to test that the
444	// AccessControlContext of the privilegedCallable is used
445	// instead of its caller. Below is a failed attempt to do
446	// that, which does not work because the AccessController
447	// cannot capture the internal state of the current Policy.
448	// It would be much more work to differentiate based on,
449	// e.g. CodeSource.
450
451	// final AccessControlContext[] noprivAcc = new AccessControlContext[1];
452	// final Callable[] task = new Callable[1];
453
454	// runWithPermissions
455	// (new CheckedRunnable() {
456	// public void realRun() {
457	// if (System.getSecurityManager() == null)
458	// return;
459	// noprivAcc[0] = AccessController.getContext();
460	// task[0] = Executors.privilegedCallable(new CheckCCL());
461	// try {
462	// AccessController.doPrivileged(new PrivilegedAction<Void>() {
463	// public Void run() {
464	// checkCCL();
465	// return null;
466	// }}, noprivAcc[0]);
467	// shouldThrow();
468	// } catch (AccessControlException success) {}
469	// }});
470
471	// runWithPermissions
472	// (new CheckedRunnable() {
473	// public void realRun() throws Exception {
474	// if (System.getSecurityManager() == null)
475	// return;
476	// // Verify that we have an underprivileged ACC
477	// try {
478	// AccessController.doPrivileged(new PrivilegedAction<Void>() {
479	// public Void run() {
480	// checkCCL();
481	// return null;
482	// }}, noprivAcc[0]);
483	// shouldThrow();
484	// } catch (AccessControlException success) {}
485
486	// try {
487	// task[0].call();
488	// shouldThrow();
489	// } catch (AccessControlException success) {}
490	// }},
491	// new RuntimePermission("getClassLoader"),
492	// new RuntimePermission("setContextClassLoader"));
493	}
494
495	/**
496	* With permissions, calling privilegedCallable succeeds
497	*/
498	public void testprivilegedCallableWithPrivs() throws Exception {
499	Runnable r = new CheckedRunnable() {
500	public void realRun() throws Exception {
501	Executors.privilegedCallable(new CheckCCL()).call();
502	}};
503
504	runWithPermissions(r,
505	new RuntimePermission("getClassLoader"),
506	new RuntimePermission("setContextClassLoader"));
507	}
508
509	/**
510	* callable(Runnable) returns null when called
511	*/
512	public void testCallable1() throws Exception {
513	Callable c = Executors.callable(new NoOpRunnable());
514	assertNull(c.call());
515	}
516
517	/**
518	* callable(Runnable, result) returns result when called
519	*/
520	public void testCallable2() throws Exception {
521	Callable c = Executors.callable(new NoOpRunnable(), one);
522	assertSame(one, c.call());
523	}
524
525	/**
526	* callable(PrivilegedAction) returns its result when called
527	*/
528	public void testCallable3() throws Exception {
529	Callable c = Executors.callable(new PrivilegedAction() {
530	public Object run() { return one; }});
531	assertSame(one, c.call());
532	}
533
534	/**
535	* callable(PrivilegedExceptionAction) returns its result when called
536	*/
537	public void testCallable4() throws Exception {
538	Callable c = Executors.callable(new PrivilegedExceptionAction() {
539	public Object run() { return one; }});
540	assertSame(one, c.call());
541	}
542
543
544	/**
545	* callable(null Runnable) throws NPE
546	*/
547	public void testCallableNPE1() {
548	try {
549	Callable c = Executors.callable((Runnable) null);
550	shouldThrow();
551	} catch (NullPointerException success) {}
552	}
553
554	/**
555	* callable(null, result) throws NPE
556	*/
557	public void testCallableNPE2() {
558	try {
559	Callable c = Executors.callable((Runnable) null, one);
560	shouldThrow();
561	} catch (NullPointerException success) {}
562	}
563
564	/**
565	* callable(null PrivilegedAction) throws NPE
566	*/
567	public void testCallableNPE3() {
568	try {
569	Callable c = Executors.callable((PrivilegedAction) null);
570	shouldThrow();
571	} catch (NullPointerException success) {}
572	}
573
574	/**
575	* callable(null PrivilegedExceptionAction) throws NPE
576	*/
577	public void testCallableNPE4() {
578	try {
579	Callable c = Executors.callable((PrivilegedExceptionAction) null);
580	shouldThrow();
581	} catch (NullPointerException success) {}
582	}
583
584
585	}