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
#	User	Rev	Content
1	dl	1.1	/*
2	dl	1.12	* Written by Doug Lea with assistance from members of JCP JSR-166
3			* Expert Group and released to the public domain, as explained at
4			* http://creativecommons.org/licenses/publicdomain
5	jsr166	1.20	* Other contributors include Andrew Wright, Jeffrey Hayes,
6			* Pat Fisher, Mike Judd.
7	dl	1.1	*/
8
9
10			import junit.framework.*;
11			import java.util.*;
12			import java.util.concurrent.*;
13	jsr166	1.26	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14	dl	1.2	import java.math.BigInteger;
15	dl	1.8	import java.security.*;
16	dl	1.1
17	jsr166	1.22	public class ExecutorsTest extends JSR166TestCase {
18	dl	1.1	public static void main(String[] args) {
19	jsr166	1.30	junit.textui.TestRunner.run(suite());
20	dl	1.1	}
21			public static Test suite() {
22	tim	1.9	return new TestSuite(ExecutorsTest.class);
23	dl	1.1	}
24
25	dl	1.5	/**
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	dl	1.14	joinPool(e);
34	dl	1.5	}
35
36			/**
37			* A newCachedThreadPool with given ThreadFactory can execute runnables
38			*/
39			public void testNewCachedThreadPool2() {
40	dl	1.6	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
41	dl	1.5	e.execute(new NoOpRunnable());
42			e.execute(new NoOpRunnable());
43			e.execute(new NoOpRunnable());
44	dl	1.14	joinPool(e);
45	dl	1.5	}
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	jsr166	1.23	} catch (NullPointerException success) {}
55	dl	1.5	}
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	dl	1.14	joinPool(e);
67	dl	1.5	}
68
69			/**
70			* A new SingleThreadExecutor with given ThreadFactory can execute runnables
71			*/
72			public void testNewSingleThreadExecutor2() {
73	dl	1.6	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
74	dl	1.5	e.execute(new NoOpRunnable());
75			e.execute(new NoOpRunnable());
76			e.execute(new NoOpRunnable());
77	dl	1.14	joinPool(e);
78	dl	1.5	}
79
80			/**
81			* A new SingleThreadExecutor with null ThreadFactory throws NPE
82			*/
83			public void testNewSingleThreadExecutor3() {
84			try {
85			ExecutorService e = Executors.newSingleThreadExecutor(null);
86			shouldThrow();
87	jsr166	1.23	} catch (NullPointerException success) {}
88	dl	1.5	}
89
90			/**
91	dl	1.11	* 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	jsr166	1.23	shouldThrow();
98	dl	1.11	} catch (ClassCastException success) {
99			} finally {
100			joinPool(e);
101			}
102			}
103
104
105			/**
106	dl	1.5	* 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	dl	1.14	joinPool(e);
114	dl	1.5	}
115
116			/**
117			* A new newFixedThreadPool with given ThreadFactory can execute runnables
118			*/
119			public void testNewFixedThreadPool2() {
120	dl	1.6	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
121	dl	1.5	e.execute(new NoOpRunnable());
122			e.execute(new NoOpRunnable());
123			e.execute(new NoOpRunnable());
124	dl	1.14	joinPool(e);
125	dl	1.5	}
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	jsr166	1.23	} catch (NullPointerException success) {}
135	dl	1.5	}
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	jsr166	1.23	} catch (IllegalArgumentException success) {}
145	dl	1.5	}
146	dl	1.1
147	dl	1.2
148			/**
149	dl	1.11	* 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	dl	1.14	joinPool(e);
157	dl	1.11	}
158
159			/**
160			* unconfigurableExecutorService(null) throws NPE
161			*/
162			public void testunconfigurableExecutorServiceNPE() {
163			try {
164			ExecutorService e = Executors.unconfigurableExecutorService(null);
165	jsr166	1.23	shouldThrow();
166			} catch (NullPointerException success) {}
167	dl	1.11	}
168
169			/**
170			* unconfigurableScheduledExecutorService(null) throws NPE
171			*/
172			public void testunconfigurableScheduledExecutorServiceNPE() {
173			try {
174			ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
175	jsr166	1.23	shouldThrow();
176			} catch (NullPointerException success) {}
177	dl	1.11	}
178
179
180			/**
181			* a newSingleThreadScheduledExecutor successfully runs delayed task
182			*/
183	jsr166	1.23	public void testNewSingleThreadScheduledExecutor() throws Exception {
184	jsr166	1.35	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	dl	1.11	}
201
202			/**
203			* a newScheduledThreadPool successfully runs delayed task
204			*/
205	jsr166	1.23	public void testnewScheduledThreadPool() throws Exception {
206	jsr166	1.35	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	dl	1.11	}
223
224			/**
225	jsr166	1.24	* an unconfigurable newScheduledThreadPool successfully runs delayed task
226	dl	1.11	*/
227	jsr166	1.23	public void testunconfigurableScheduledExecutorService() throws Exception {
228	jsr166	1.35	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	dl	1.11	}
247
248			/**
249	jsr166	1.34	* Future.get on submitted tasks will time out if they compute too long.
250	dl	1.2	*/
251	jsr166	1.23	public void testTimedCallable() throws Exception {
252	jsr166	1.33	final Runnable sleeper = new CheckedInterruptedRunnable() {
253			public void realRun() throws InterruptedException {
254			Thread.sleep(LONG_DELAY_MS);
255			}};
256	jsr166	1.28	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	dl	1.2	try {
266	jsr166	1.28	future.get(SHORT_DELAY_MS, MILLISECONDS);
267			shouldThrow();
268			} catch (TimeoutException success) {
269			} finally {
270			future.cancel(true);
271	dl	1.2	}
272			}
273	jsr166	1.28	finally {
274			joinPool(executor);
275			}
276	dl	1.2	}
277			}
278
279	jsr166	1.20
280	dl	1.8	/**
281			* ThreadPoolExecutor using defaultThreadFactory has
282			* specified group, priority, daemon status, and name
283			*/
284	jsr166	1.23	public void testDefaultThreadFactory() throws Exception {
285	tim	1.9	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
286	jsr166	1.31	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	tim	1.9	}
303	jsr166	1.31	}};
304	tim	1.9	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
305	jsr166	1.20
306	tim	1.9	e.execute(r);
307	dl	1.14	try {
308			e.shutdown();
309	jsr166	1.21	} catch (SecurityException ok) {
310	dl	1.14	}
311	jsr166	1.20
312	tim	1.9	try {
313			Thread.sleep(SHORT_DELAY_MS);
314			} finally {
315			joinPool(e);
316			}
317	dl	1.8	}
318
319			/**
320			* ThreadPoolExecutor using privilegedThreadFactory has
321			* specified group, priority, daemon status, name,
322			* access control context and context class loader
323			*/
324	jsr166	1.23	public void testPrivilegedThreadFactory() throws Exception {
325	jsr166	1.29	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	jsr166	1.25	Thread current = Thread.currentThread();
333	jsr166	1.29	assertTrue(!current.isDaemon());
334			assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
335	jsr166	1.25	ThreadGroup g = current.getThreadGroup();
336			SecurityManager s = System.getSecurityManager();
337			if (s != null)
338	jsr166	1.29	assertTrue(g == s.getThreadGroup());
339	jsr166	1.25	else
340	jsr166	1.29	assertTrue(g == egroup);
341	jsr166	1.25	String name = current.getName();
342	jsr166	1.29	assertTrue(name.endsWith("thread-1"));
343	jsr166	1.31	assertSame(thisccl, current.getContextClassLoader());
344			assertEquals(thisacc, AccessController.getContext());
345	jsr166	1.29	}};
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	jsr166	1.20
359	jsr166	1.29	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	tim	1.9	}
369	jsr166	1.29	return true;
370	dl	1.8	}
371	dl	1.11
372	dl	1.16	void checkCCL() {
373	dl	1.18	SecurityManager sm = System.getSecurityManager();
374			if (sm != null) {
375			sm.checkPermission(new RuntimePermission("setContextClassLoader"));
376	jsr166	1.19	sm.checkPermission(new RuntimePermission("getClassLoader"));
377	dl	1.18	}
378	dl	1.16	}
379
380			class CheckCCL implements Callable<Object> {
381	dl	1.11	public Object call() {
382	dl	1.16	checkCCL();
383	dl	1.11	return null;
384			}
385			}
386
387
388			/**
389			* Without class loader permissions, creating
390			* privilegedCallableUsingCurrentClassLoader throws ACE
391			*/
392			public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
393	jsr166	1.29	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	dl	1.16
403	jsr166	1.29	runWithoutPermissions(r);
404	dl	1.11	}
405
406			/**
407	dl	1.16	* With class loader permissions, calling
408			* privilegedCallableUsingCurrentClassLoader does not throw ACE
409	dl	1.11	*/
410	jsr166	1.23	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
411	jsr166	1.29	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	dl	1.11	}
422
423			/**
424			* Without permissions, calling privilegedCallable throws ACE
425			*/
426	jsr166	1.23	public void testprivilegedCallableWithNoPrivs() throws Exception {
427	jsr166	1.32	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
428			Executors.privilegedCallable(new CheckCCL());
429
430	jsr166	1.29	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	dl	1.11	}
494
495			/**
496			* With permissions, calling privilegedCallable succeeds
497			*/
498	jsr166	1.23	public void testprivilegedCallableWithPrivs() throws Exception {
499	jsr166	1.29	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	dl	1.11	}
508
509			/**
510			* callable(Runnable) returns null when called
511	jsr166	1.20	*/
512	jsr166	1.23	public void testCallable1() throws Exception {
513			Callable c = Executors.callable(new NoOpRunnable());
514			assertNull(c.call());
515	dl	1.11	}
516
517			/**
518			* callable(Runnable, result) returns result when called
519	jsr166	1.20	*/
520	jsr166	1.23	public void testCallable2() throws Exception {
521			Callable c = Executors.callable(new NoOpRunnable(), one);
522	jsr166	1.27	assertSame(one, c.call());
523	dl	1.11	}
524
525			/**
526			* callable(PrivilegedAction) returns its result when called
527	jsr166	1.20	*/
528	jsr166	1.23	public void testCallable3() throws Exception {
529			Callable c = Executors.callable(new PrivilegedAction() {
530			public Object run() { return one; }});
531	jsr166	1.27	assertSame(one, c.call());
532	dl	1.11	}
533
534			/**
535			* callable(PrivilegedExceptionAction) returns its result when called
536	jsr166	1.20	*/
537	jsr166	1.23	public void testCallable4() throws Exception {
538			Callable c = Executors.callable(new PrivilegedExceptionAction() {
539			public Object run() { return one; }});
540	jsr166	1.27	assertSame(one, c.call());
541	dl	1.11	}
542
543
544			/**
545			* callable(null Runnable) throws NPE
546	jsr166	1.20	*/
547	dl	1.11	public void testCallableNPE1() {
548			try {
549	jsr166	1.23	Callable c = Executors.callable((Runnable) null);
550			shouldThrow();
551			} catch (NullPointerException success) {}
552	dl	1.11	}
553
554			/**
555			* callable(null, result) throws NPE
556	jsr166	1.20	*/
557	dl	1.11	public void testCallableNPE2() {
558			try {
559	jsr166	1.23	Callable c = Executors.callable((Runnable) null, one);
560			shouldThrow();
561			} catch (NullPointerException success) {}
562	dl	1.11	}
563
564			/**
565			* callable(null PrivilegedAction) throws NPE
566	jsr166	1.20	*/
567	dl	1.11	public void testCallableNPE3() {
568			try {
569	jsr166	1.23	Callable c = Executors.callable((PrivilegedAction) null);
570			shouldThrow();
571			} catch (NullPointerException success) {}
572	dl	1.11	}
573
574			/**
575			* callable(null PrivilegedExceptionAction) throws NPE
576	jsr166	1.20	*/
577	dl	1.11	public void testCallableNPE4() {
578			try {
579	jsr166	1.23	Callable c = Executors.callable((PrivilegedExceptionAction) null);
580			shouldThrow();
581			} catch (NullPointerException success) {}
582	dl	1.11	}
583
584	dl	1.1
585			}