test/tck/ExecutorsTest.java

/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/publicdomain/zero/1.0/
 * Other contributors include Andrew Wright, Jeffrey Hayes,
 * Pat Fisher, Mike Judd.
 */

import static java.util.concurrent.TimeUnit.MILLISECONDS;

import java.security.AccessControlContext;
import java.security.AccessControlException;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedExceptionAction;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executors;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadPoolExecutor;

import junit.framework.Test;
import junit.framework.TestSuite;

public class ExecutorsTest extends JSR166TestCase {
    public static void main(String[] args) {
        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 proceed = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    await(proceed);
                }};
            long startTime = System.nanoTime();
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  timeoutMillis(), MILLISECONDS);
            assertFalse(f.isDone());
            proceed.countDown();
            assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
            assertSame(Boolean.TRUE, f.get());
            assertTrue(f.isDone());
            assertFalse(f.isCancelled());
            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
        } finally {
            joinPool(p);
        }
    }

    /**
     * a newScheduledThreadPool successfully runs delayed task
     */
    public void testNewScheduledThreadPool() throws Exception {
        ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
        try {
            final CountDownLatch proceed = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    await(proceed);
                }};
            long startTime = System.nanoTime();
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  timeoutMillis(), MILLISECONDS);
            assertFalse(f.isDone());
            proceed.countDown();
            assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
            assertSame(Boolean.TRUE, f.get());
            assertTrue(f.isDone());
            assertFalse(f.isCancelled());
            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
        } finally {
            joinPool(p);
        }
    }

    /**
     * an unconfigurable newScheduledThreadPool successfully runs delayed task
     */
    public void testUnconfigurableScheduledExecutorService() throws Exception {
        ScheduledExecutorService p =
            Executors.unconfigurableScheduledExecutorService
            (Executors.newScheduledThreadPool(2));
        try {
            final CountDownLatch proceed = new CountDownLatch(1);
            final Runnable task = new CheckedRunnable() {
                public void realRun() {
                    await(proceed);
                }};
            long startTime = System.nanoTime();
            Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
                                  timeoutMillis(), MILLISECONDS);
            assertFalse(f.isDone());
            proceed.countDown();
            assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
            assertSame(Boolean.TRUE, f.get());
            assertTrue(f.isDone());
            assertFalse(f.isCancelled());
            assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
        } finally {
            joinPool(p);
        }
    }

    /**
     * Future.get on submitted tasks will time out if they compute too long.
     */
    public void testTimedCallable() throws Exception {
        final ExecutorService[] executors = {
            Executors.newSingleThreadExecutor(),
            Executors.newCachedThreadPool(),
            Executors.newFixedThreadPool(2),
            Executors.newScheduledThreadPool(2),
        };

        final Runnable sleeper = new CheckedInterruptedRunnable() {
            public void realRun() throws InterruptedException {
                delay(LONG_DELAY_MS);
            }};

        List<Thread> threads = new ArrayList<Thread>();
        for (final ExecutorService executor : executors) {
            threads.add(newStartedThread(new CheckedRunnable() {
                public void realRun() {
                    Future future = executor.submit(sleeper);
                    assertFutureTimesOut(future);
                }}));
        }
        for (Thread thread : threads)
            awaitTermination(thread);
        for (ExecutorService executor : executors)
            joinPool(executor);
    }

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

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

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

        joinPool(e);
    }

    /**
     * ThreadPoolExecutor using privilegedThreadFactory has
     * specified group, priority, daemon status, name,
     * access control context and context class loader
     */
    public void testPrivilegedThreadFactory() throws Exception {
        final CountDownLatch done = new CountDownLatch(1);
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
                final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
                final AccessControlContext thisacc = AccessController.getContext();
                Runnable r = new CheckedRunnable() {
                    public void realRun() {
                        Thread current = Thread.currentThread();
                        assertTrue(!current.isDaemon());
                        assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
                        ThreadGroup g = current.getThreadGroup();
                        SecurityManager s = System.getSecurityManager();
                        if (s != null)
                            assertTrue(g == s.getThreadGroup());
                        else
                            assertTrue(g == egroup);
                        String name = current.getName();
                        assertTrue(name.endsWith("thread-1"));
                        assertSame(thisccl, current.getContextClassLoader());
                        assertEquals(thisacc, AccessController.getContext());
                        done.countDown();
                    }};
                ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
                e.execute(r);
                await(done);
                e.shutdown();
                joinPool(e);
            }};

        runWithPermissions(r,
                           new RuntimePermission("getClassLoader"),
                           new RuntimePermission("setContextClassLoader"),
                           new RuntimePermission("modifyThread"));
    }

    boolean haveCCLPermissions() {
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            try {
                sm.checkPermission(new RuntimePermission("setContextClassLoader"));
                sm.checkPermission(new RuntimePermission("getClassLoader"));
            } catch (AccessControlException e) {
                return false;
            }
        }
        return true;
    }

    void checkCCL() {
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            sm.checkPermission(new RuntimePermission("setContextClassLoader"));
            sm.checkPermission(new RuntimePermission("getClassLoader"));
        }
    }

    class CheckCCL implements Callable<Object> {
        public Object call() {
            checkCCL();
            return null;
        }
    }

    /**
     * Without class loader permissions, creating
     * privilegedCallableUsingCurrentClassLoader throws ACE
     */
    public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                if (System.getSecurityManager() == null)
                    return;
                try {
                    Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
                    shouldThrow();
                } catch (AccessControlException success) {}
            }};

        runWithoutPermissions(r);
    }

    /**
     * With class loader permissions, calling
     * privilegedCallableUsingCurrentClassLoader does not throw ACE
     */
    public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                Executors.privilegedCallableUsingCurrentClassLoader
                    (new NoOpCallable())
                    .call();
            }};

        runWithPermissions(r,
                           new RuntimePermission("getClassLoader"),
                           new RuntimePermission("setContextClassLoader"));
    }

    /**
     * Without permissions, calling privilegedCallable throws ACE
     */
    public void testPrivilegedCallableWithNoPrivs() throws Exception {
        // Avoid classloader-related SecurityExceptions in swingui.TestRunner
        Executors.privilegedCallable(new CheckCCL());

        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                if (System.getSecurityManager() == null)
                    return;
                Callable task = Executors.privilegedCallable(new CheckCCL());
                try {
                    task.call();
                    shouldThrow();
                } catch (AccessControlException success) {}
            }};

        runWithoutPermissions(r);

        // It seems rather difficult to test that the
        // AccessControlContext of the privilegedCallable is used
        // instead of its caller.  Below is a failed attempt to do
        // that, which does not work because the AccessController
        // cannot capture the internal state of the current Policy.
        // It would be much more work to differentiate based on,
        // e.g. CodeSource.

//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
//         final Callable[] task = new Callable[1];

//         runWithPermissions
//             (new CheckedRunnable() {
//                 public void realRun() {
//                     if (System.getSecurityManager() == null)
//                         return;
//                     noprivAcc[0] = AccessController.getContext();
//                     task[0] = Executors.privilegedCallable(new CheckCCL());
//                     try {
//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
//                                                           public Void run() {
//                                                               checkCCL();
//                                                               return null;
//                                                           }}, noprivAcc[0]);
//                         shouldThrow();
//                     } catch (AccessControlException success) {}
//                 }});

//         runWithPermissions
//             (new CheckedRunnable() {
//                 public void realRun() throws Exception {
//                     if (System.getSecurityManager() == null)
//                         return;
//                     // Verify that we have an underprivileged ACC
//                     try {
//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
//                                                           public Void run() {
//                                                               checkCCL();
//                                                               return null;
//                                                           }}, noprivAcc[0]);
//                         shouldThrow();
//                     } catch (AccessControlException success) {}

//                     try {
//                         task[0].call();
//                         shouldThrow();
//                     } catch (AccessControlException success) {}
//                 }},
//              new RuntimePermission("getClassLoader"),
//              new RuntimePermission("setContextClassLoader"));
    }

    /**
     * With permissions, calling privilegedCallable succeeds
     */
    public void testPrivilegedCallableWithPrivs() throws Exception {
        Runnable r = new CheckedRunnable() {
            public void realRun() throws Exception {
                Executors.privilegedCallable(new CheckCCL()).call();
            }};

        runWithPermissions(r,
                           new RuntimePermission("getClassLoader"),
                           new RuntimePermission("setContextClassLoader"));
    }

    /**
     * callable(Runnable) returns null when called
     */
    public void testCallable1() throws Exception {
        Callable c = Executors.callable(new NoOpRunnable());
        assertNull(c.call());
    }

    /**
     * callable(Runnable, result) returns result when called
     */
    public void testCallable2() throws Exception {
        Callable c = Executors.callable(new NoOpRunnable(), one);
        assertSame(one, c.call());
    }

    /**
     * callable(PrivilegedAction) returns its result when called
     */
    public void testCallable3() throws Exception {
        Callable c = Executors.callable(new PrivilegedAction() {
                public Object run() { return one; }});
        assertSame(one, c.call());
    }

    /**
     * callable(PrivilegedExceptionAction) returns its result when called
     */
    public void testCallable4() throws Exception {
        Callable c = Executors.callable(new PrivilegedExceptionAction() {
                public Object run() { return one; }});
        assertSame(one, c.call());
    }

    /**
     * callable(null Runnable) throws NPE
     */
    public void testCallableNPE1() {
        try {
            Callable c = Executors.callable((Runnable) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null, result) throws NPE
     */
    public void testCallableNPE2() {
        try {
            Callable c = Executors.callable((Runnable) null, one);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null PrivilegedAction) throws NPE
     */
    public void testCallableNPE3() {
        try {
            Callable c = Executors.callable((PrivilegedAction) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null PrivilegedExceptionAction) throws NPE
     */
    public void testCallableNPE4() {
        try {
            Callable c = Executors.callable((PrivilegedExceptionAction) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

}
Revision:	1.44
Committed:	Sun Feb 22 19:16:12 2015 UTC (9 years, 2 months ago) by jsr166
Branch:	MAIN
Changes since 1.43:	+0 -1 lines
Log Message:	remove dead code
#	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/publicdomain/zero/1.0/
5	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	* Pat Fisher, Mike Judd.
7	*/
8
9	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10
11	import java.security.AccessControlContext;
12	import java.security.AccessControlException;
13	import java.security.AccessController;
14	import java.security.PrivilegedAction;
15	import java.security.PrivilegedExceptionAction;
16	import java.util.ArrayList;
17	import java.util.List;
18	import java.util.concurrent.Callable;
19	import java.util.concurrent.CountDownLatch;
20	import java.util.concurrent.Executors;
21	import java.util.concurrent.ExecutorService;
22	import java.util.concurrent.Future;
23	import java.util.concurrent.ScheduledExecutorService;
24	import java.util.concurrent.ThreadPoolExecutor;
25
26	import junit.framework.Test;
27	import junit.framework.TestSuite;
28
29	public class ExecutorsTest extends JSR166TestCase {
30	public static void main(String[] args) {
31	junit.textui.TestRunner.run(suite());
32	}
33	public static Test suite() {
34	return new TestSuite(ExecutorsTest.class);
35	}
36
37	/**
38	* A newCachedThreadPool can execute runnables
39	*/
40	public void testNewCachedThreadPool1() {
41	ExecutorService e = Executors.newCachedThreadPool();
42	e.execute(new NoOpRunnable());
43	e.execute(new NoOpRunnable());
44	e.execute(new NoOpRunnable());
45	joinPool(e);
46	}
47
48	/**
49	* A newCachedThreadPool with given ThreadFactory can execute runnables
50	*/
51	public void testNewCachedThreadPool2() {
52	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
53	e.execute(new NoOpRunnable());
54	e.execute(new NoOpRunnable());
55	e.execute(new NoOpRunnable());
56	joinPool(e);
57	}
58
59	/**
60	* A newCachedThreadPool with null ThreadFactory throws NPE
61	*/
62	public void testNewCachedThreadPool3() {
63	try {
64	ExecutorService e = Executors.newCachedThreadPool(null);
65	shouldThrow();
66	} catch (NullPointerException success) {}
67	}
68
69	/**
70	* A new SingleThreadExecutor can execute runnables
71	*/
72	public void testNewSingleThreadExecutor1() {
73	ExecutorService e = Executors.newSingleThreadExecutor();
74	e.execute(new NoOpRunnable());
75	e.execute(new NoOpRunnable());
76	e.execute(new NoOpRunnable());
77	joinPool(e);
78	}
79
80	/**
81	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
82	*/
83	public void testNewSingleThreadExecutor2() {
84	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
85	e.execute(new NoOpRunnable());
86	e.execute(new NoOpRunnable());
87	e.execute(new NoOpRunnable());
88	joinPool(e);
89	}
90
91	/**
92	* A new SingleThreadExecutor with null ThreadFactory throws NPE
93	*/
94	public void testNewSingleThreadExecutor3() {
95	try {
96	ExecutorService e = Executors.newSingleThreadExecutor(null);
97	shouldThrow();
98	} catch (NullPointerException success) {}
99	}
100
101	/**
102	* A new SingleThreadExecutor cannot be casted to concrete implementation
103	*/
104	public void testCastNewSingleThreadExecutor() {
105	ExecutorService e = Executors.newSingleThreadExecutor();
106	try {
107	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
108	shouldThrow();
109	} catch (ClassCastException success) {
110	} finally {
111	joinPool(e);
112	}
113	}
114
115	/**
116	* A new newFixedThreadPool can execute runnables
117	*/
118	public void testNewFixedThreadPool1() {
119	ExecutorService e = Executors.newFixedThreadPool(2);
120	e.execute(new NoOpRunnable());
121	e.execute(new NoOpRunnable());
122	e.execute(new NoOpRunnable());
123	joinPool(e);
124	}
125
126	/**
127	* A new newFixedThreadPool with given ThreadFactory can execute runnables
128	*/
129	public void testNewFixedThreadPool2() {
130	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
131	e.execute(new NoOpRunnable());
132	e.execute(new NoOpRunnable());
133	e.execute(new NoOpRunnable());
134	joinPool(e);
135	}
136
137	/**
138	* A new newFixedThreadPool with null ThreadFactory throws NPE
139	*/
140	public void testNewFixedThreadPool3() {
141	try {
142	ExecutorService e = Executors.newFixedThreadPool(2, null);
143	shouldThrow();
144	} catch (NullPointerException success) {}
145	}
146
147	/**
148	* A new newFixedThreadPool with 0 threads throws IAE
149	*/
150	public void testNewFixedThreadPool4() {
151	try {
152	ExecutorService e = Executors.newFixedThreadPool(0);
153	shouldThrow();
154	} catch (IllegalArgumentException success) {}
155	}
156
157	/**
158	* An unconfigurable newFixedThreadPool can execute runnables
159	*/
160	public void testUnconfigurableExecutorService() {
161	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
162	e.execute(new NoOpRunnable());
163	e.execute(new NoOpRunnable());
164	e.execute(new NoOpRunnable());
165	joinPool(e);
166	}
167
168	/**
169	* unconfigurableExecutorService(null) throws NPE
170	*/
171	public void testUnconfigurableExecutorServiceNPE() {
172	try {
173	ExecutorService e = Executors.unconfigurableExecutorService(null);
174	shouldThrow();
175	} catch (NullPointerException success) {}
176	}
177
178	/**
179	* unconfigurableScheduledExecutorService(null) throws NPE
180	*/
181	public void testUnconfigurableScheduledExecutorServiceNPE() {
182	try {
183	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
184	shouldThrow();
185	} catch (NullPointerException success) {}
186	}
187
188	/**
189	* a newSingleThreadScheduledExecutor successfully runs delayed task
190	*/
191	public void testNewSingleThreadScheduledExecutor() throws Exception {
192	ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
193	try {
194	final CountDownLatch proceed = new CountDownLatch(1);
195	final Runnable task = new CheckedRunnable() {
196	public void realRun() {
197	await(proceed);
198	}};
199	long startTime = System.nanoTime();
200	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
201	timeoutMillis(), MILLISECONDS);
202	assertFalse(f.isDone());
203	proceed.countDown();
204	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
205	assertSame(Boolean.TRUE, f.get());
206	assertTrue(f.isDone());
207	assertFalse(f.isCancelled());
208	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
209	} finally {
210	joinPool(p);
211	}
212	}
213
214	/**
215	* a newScheduledThreadPool successfully runs delayed task
216	*/
217	public void testNewScheduledThreadPool() throws Exception {
218	ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
219	try {
220	final CountDownLatch proceed = new CountDownLatch(1);
221	final Runnable task = new CheckedRunnable() {
222	public void realRun() {
223	await(proceed);
224	}};
225	long startTime = System.nanoTime();
226	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
227	timeoutMillis(), MILLISECONDS);
228	assertFalse(f.isDone());
229	proceed.countDown();
230	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
231	assertSame(Boolean.TRUE, f.get());
232	assertTrue(f.isDone());
233	assertFalse(f.isCancelled());
234	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
235	} finally {
236	joinPool(p);
237	}
238	}
239
240	/**
241	* an unconfigurable newScheduledThreadPool successfully runs delayed task
242	*/
243	public void testUnconfigurableScheduledExecutorService() throws Exception {
244	ScheduledExecutorService p =
245	Executors.unconfigurableScheduledExecutorService
246	(Executors.newScheduledThreadPool(2));
247	try {
248	final CountDownLatch proceed = new CountDownLatch(1);
249	final Runnable task = new CheckedRunnable() {
250	public void realRun() {
251	await(proceed);
252	}};
253	long startTime = System.nanoTime();
254	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
255	timeoutMillis(), MILLISECONDS);
256	assertFalse(f.isDone());
257	proceed.countDown();
258	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
259	assertSame(Boolean.TRUE, f.get());
260	assertTrue(f.isDone());
261	assertFalse(f.isCancelled());
262	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
263	} finally {
264	joinPool(p);
265	}
266	}
267
268	/**
269	* Future.get on submitted tasks will time out if they compute too long.
270	*/
271	public void testTimedCallable() throws Exception {
272	final ExecutorService[] executors = {
273	Executors.newSingleThreadExecutor(),
274	Executors.newCachedThreadPool(),
275	Executors.newFixedThreadPool(2),
276	Executors.newScheduledThreadPool(2),
277	};
278
279	final Runnable sleeper = new CheckedInterruptedRunnable() {
280	public void realRun() throws InterruptedException {
281	delay(LONG_DELAY_MS);
282	}};
283
284	List<Thread> threads = new ArrayList<Thread>();
285	for (final ExecutorService executor : executors) {
286	threads.add(newStartedThread(new CheckedRunnable() {
287	public void realRun() {
288	Future future = executor.submit(sleeper);
289	assertFutureTimesOut(future);
290	}}));
291	}
292	for (Thread thread : threads)
293	awaitTermination(thread);
294	for (ExecutorService executor : executors)
295	joinPool(executor);
296	}
297
298	/**
299	* ThreadPoolExecutor using defaultThreadFactory has
300	* specified group, priority, daemon status, and name
301	*/
302	public void testDefaultThreadFactory() throws Exception {
303	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
304	final CountDownLatch done = new CountDownLatch(1);
305	Runnable r = new CheckedRunnable() {
306	public void realRun() {
307	try {
308	Thread current = Thread.currentThread();
309	assertTrue(!current.isDaemon());
310	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
311	ThreadGroup g = current.getThreadGroup();
312	SecurityManager s = System.getSecurityManager();
313	if (s != null)
314	assertTrue(g == s.getThreadGroup());
315	else
316	assertTrue(g == egroup);
317	String name = current.getName();
318	assertTrue(name.endsWith("thread-1"));
319	} catch (SecurityException ok) {
320	// Also pass if not allowed to change setting
321	}
322	done.countDown();
323	}};
324	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
325
326	e.execute(r);
327	await(done);
328
329	try {
330	e.shutdown();
331	} catch (SecurityException ok) {
332	}
333
334	joinPool(e);
335	}
336
337	/**
338	* ThreadPoolExecutor using privilegedThreadFactory has
339	* specified group, priority, daemon status, name,
340	* access control context and context class loader
341	*/
342	public void testPrivilegedThreadFactory() throws Exception {
343	final CountDownLatch done = new CountDownLatch(1);
344	Runnable r = new CheckedRunnable() {
345	public void realRun() throws Exception {
346	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
347	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
348	final AccessControlContext thisacc = AccessController.getContext();
349	Runnable r = new CheckedRunnable() {
350	public void realRun() {
351	Thread current = Thread.currentThread();
352	assertTrue(!current.isDaemon());
353	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
354	ThreadGroup g = current.getThreadGroup();
355	SecurityManager s = System.getSecurityManager();
356	if (s != null)
357	assertTrue(g == s.getThreadGroup());
358	else
359	assertTrue(g == egroup);
360	String name = current.getName();
361	assertTrue(name.endsWith("thread-1"));
362	assertSame(thisccl, current.getContextClassLoader());
363	assertEquals(thisacc, AccessController.getContext());
364	done.countDown();
365	}};
366	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
367	e.execute(r);
368	await(done);
369	e.shutdown();
370	joinPool(e);
371	}};
372
373	runWithPermissions(r,
374	new RuntimePermission("getClassLoader"),
375	new RuntimePermission("setContextClassLoader"),
376	new RuntimePermission("modifyThread"));
377	}
378
379	boolean haveCCLPermissions() {
380	SecurityManager sm = System.getSecurityManager();
381	if (sm != null) {
382	try {
383	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
384	sm.checkPermission(new RuntimePermission("getClassLoader"));
385	} catch (AccessControlException e) {
386	return false;
387	}
388	}
389	return true;
390	}
391
392	void checkCCL() {
393	SecurityManager sm = System.getSecurityManager();
394	if (sm != null) {
395	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
396	sm.checkPermission(new RuntimePermission("getClassLoader"));
397	}
398	}
399
400	class CheckCCL implements Callable<Object> {
401	public Object call() {
402	checkCCL();
403	return null;
404	}
405	}
406
407	/**
408	* Without class loader permissions, creating
409	* privilegedCallableUsingCurrentClassLoader throws ACE
410	*/
411	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
412	Runnable r = new CheckedRunnable() {
413	public void realRun() throws Exception {
414	if (System.getSecurityManager() == null)
415	return;
416	try {
417	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
418	shouldThrow();
419	} catch (AccessControlException success) {}
420	}};
421
422	runWithoutPermissions(r);
423	}
424
425	/**
426	* With class loader permissions, calling
427	* privilegedCallableUsingCurrentClassLoader does not throw ACE
428	*/
429	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
430	Runnable r = new CheckedRunnable() {
431	public void realRun() throws Exception {
432	Executors.privilegedCallableUsingCurrentClassLoader
433	(new NoOpCallable())
434	.call();
435	}};
436
437	runWithPermissions(r,
438	new RuntimePermission("getClassLoader"),
439	new RuntimePermission("setContextClassLoader"));
440	}
441
442	/**
443	* Without permissions, calling privilegedCallable throws ACE
444	*/
445	public void testPrivilegedCallableWithNoPrivs() throws Exception {
446	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
447	Executors.privilegedCallable(new CheckCCL());
448
449	Runnable r = new CheckedRunnable() {
450	public void realRun() throws Exception {
451	if (System.getSecurityManager() == null)
452	return;
453	Callable task = Executors.privilegedCallable(new CheckCCL());
454	try {
455	task.call();
456	shouldThrow();
457	} catch (AccessControlException success) {}
458	}};
459
460	runWithoutPermissions(r);
461
462	// It seems rather difficult to test that the
463	// AccessControlContext of the privilegedCallable is used
464	// instead of its caller. Below is a failed attempt to do
465	// that, which does not work because the AccessController
466	// cannot capture the internal state of the current Policy.
467	// It would be much more work to differentiate based on,
468	// e.g. CodeSource.
469
470	// final AccessControlContext[] noprivAcc = new AccessControlContext[1];
471	// final Callable[] task = new Callable[1];
472
473	// runWithPermissions
474	// (new CheckedRunnable() {
475	// public void realRun() {
476	// if (System.getSecurityManager() == null)
477	// return;
478	// noprivAcc[0] = AccessController.getContext();
479	// task[0] = Executors.privilegedCallable(new CheckCCL());
480	// try {
481	// AccessController.doPrivileged(new PrivilegedAction<Void>() {
482	// public Void run() {
483	// checkCCL();
484	// return null;
485	// }}, noprivAcc[0]);
486	// shouldThrow();
487	// } catch (AccessControlException success) {}
488	// }});
489
490	// runWithPermissions
491	// (new CheckedRunnable() {
492	// public void realRun() throws Exception {
493	// if (System.getSecurityManager() == null)
494	// return;
495	// // Verify that we have an underprivileged ACC
496	// try {
497	// AccessController.doPrivileged(new PrivilegedAction<Void>() {
498	// public Void run() {
499	// checkCCL();
500	// return null;
501	// }}, noprivAcc[0]);
502	// shouldThrow();
503	// } catch (AccessControlException success) {}
504
505	// try {
506	// task[0].call();
507	// shouldThrow();
508	// } catch (AccessControlException success) {}
509	// }},
510	// new RuntimePermission("getClassLoader"),
511	// new RuntimePermission("setContextClassLoader"));
512	}
513
514	/**
515	* With permissions, calling privilegedCallable succeeds
516	*/
517	public void testPrivilegedCallableWithPrivs() throws Exception {
518	Runnable r = new CheckedRunnable() {
519	public void realRun() throws Exception {
520	Executors.privilegedCallable(new CheckCCL()).call();
521	}};
522
523	runWithPermissions(r,
524	new RuntimePermission("getClassLoader"),
525	new RuntimePermission("setContextClassLoader"));
526	}
527
528	/**
529	* callable(Runnable) returns null when called
530	*/
531	public void testCallable1() throws Exception {
532	Callable c = Executors.callable(new NoOpRunnable());
533	assertNull(c.call());
534	}
535
536	/**
537	* callable(Runnable, result) returns result when called
538	*/
539	public void testCallable2() throws Exception {
540	Callable c = Executors.callable(new NoOpRunnable(), one);
541	assertSame(one, c.call());
542	}
543
544	/**
545	* callable(PrivilegedAction) returns its result when called
546	*/
547	public void testCallable3() throws Exception {
548	Callable c = Executors.callable(new PrivilegedAction() {
549	public Object run() { return one; }});
550	assertSame(one, c.call());
551	}
552
553	/**
554	* callable(PrivilegedExceptionAction) returns its result when called
555	*/
556	public void testCallable4() throws Exception {
557	Callable c = Executors.callable(new PrivilegedExceptionAction() {
558	public Object run() { return one; }});
559	assertSame(one, c.call());
560	}
561
562	/**
563	* callable(null Runnable) throws NPE
564	*/
565	public void testCallableNPE1() {
566	try {
567	Callable c = Executors.callable((Runnable) null);
568	shouldThrow();
569	} catch (NullPointerException success) {}
570	}
571
572	/**
573	* callable(null, result) throws NPE
574	*/
575	public void testCallableNPE2() {
576	try {
577	Callable c = Executors.callable((Runnable) null, one);
578	shouldThrow();
579	} catch (NullPointerException success) {}
580	}
581
582	/**
583	* callable(null PrivilegedAction) throws NPE
584	*/
585	public void testCallableNPE3() {
586	try {
587	Callable c = Executors.callable((PrivilegedAction) null);
588	shouldThrow();
589	} catch (NullPointerException success) {}
590	}
591
592	/**
593	* callable(null PrivilegedExceptionAction) throws NPE
594	*/
595	public void testCallableNPE4() {
596	try {
597	Callable c = Executors.callable((PrivilegedExceptionAction) null);
598	shouldThrow();
599	} catch (NullPointerException success) {}
600	}
601
602	}