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 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);
    }

    static class TimedCallable<T> implements Callable<T> {
        private final ExecutorService exec;
        private final Callable<T> func;
        private final long msecs;
        
        TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
            this.exec = exec;
            this.func = func;
            this.msecs = msecs;
        }
        
        public T call() throws Exception {
            Future<T> ftask = exec.submit(func);
            try {
                return ftask.get(msecs, TimeUnit.MILLISECONDS);
            } finally {
                ftask.cancel(true);
            }
        }
    }


    private static class Fib implements Callable<BigInteger> {
        private final BigInteger n;
        Fib(long n) {
            if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
            this.n = BigInteger.valueOf(n);
        }
        public BigInteger call() {
            BigInteger f1 = BigInteger.ONE;
            BigInteger f2 = f1;
            for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
                BigInteger t = f1.add(f2);
                f1 = f2;
                f2 = t;
            }
            return f1;
        }
    };

    /**
     * A newCachedThreadPool can execute runnables
     */
    public void testNewCachedThreadPool1() {
        ExecutorService e = Executors.newCachedThreadPool();
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.shutdown();
    }

    /**
     * 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());
        e.shutdown();
    }

    /**
     * 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());
        e.shutdown();
    }

    /**
     * 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());
        e.shutdown();
    }

    /**
     * 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;
        } 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());
        e.shutdown();
    }

    /**
     * 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());
        e.shutdown();
    }

    /**
     * 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());
        e.shutdown();
    }

    /**
     * unconfigurableExecutorService(null) throws NPE
     */
    public void testunconfigurableExecutorServiceNPE() {
        try {
            ExecutorService e = Executors.unconfigurableExecutorService(null);
        }
        catch (NullPointerException success) {
        }
    }

    /**
     * unconfigurableScheduledExecutorService(null) throws NPE
     */
    public void testunconfigurableScheduledExecutorServiceNPE() {
        try {
            ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
        }
        catch (NullPointerException success) {
        }
    }


    /**
     * a newSingleThreadScheduledExecutor successfully runs delayed task
     */
    public void testNewSingleThreadScheduledExecutor() {
        try {
            TrackedCallable callable = new TrackedCallable();
            ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
            Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
            assertFalse(callable.done);
            Thread.sleep(MEDIUM_DELAY_MS);
            assertTrue(callable.done);
            assertEquals(Boolean.TRUE, f.get());
            p1.shutdown();
            joinPool(p1);
        } catch(RejectedExecutionException e){}
        catch(Exception e){
            e.printStackTrace();
            unexpectedException();
        }
    }

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

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

    /**
     *  timeouts from execute will time out if they compute too long.
     */
    public void testTimedCallable() {
        int N = 10000;
        ExecutorService executor = Executors.newSingleThreadExecutor();
        List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
        try {
            long startTime = System.currentTimeMillis();
            
            long i = 0;
            while (tasks.size() < N) {
                tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
                i += 10;
            }
            
            int iters = 0;
            BigInteger sum = BigInteger.ZERO;
            for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
                try {
                    ++iters;
                    sum = sum.add(it.next().call());
                }
                catch (TimeoutException success) {
                    assertTrue(iters > 0);
                    return;
                }
                catch (Exception e) {
                    unexpectedException();
                }
            }
            // if by chance we didn't ever time out, total time must be small
            long elapsed = System.currentTimeMillis() - startTime;
            assertTrue(elapsed < N);
        }
        finally {
            joinPool(executor);
        }
    }

    
    /**
     * ThreadPoolExecutor using defaultThreadFactory has
     * specified group, priority, daemon status, and name
     */
    public void testDefaultThreadFactory() {
        final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
        Runnable r = new Runnable() {
                public void run() {
                    Thread current = Thread.currentThread();
                    threadAssertTrue(!current.isDaemon());
                    threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
                    ThreadGroup g = current.getThreadGroup();
                    SecurityManager s = System.getSecurityManager();
                    if (s != null)
                        threadAssertTrue(g == s.getThreadGroup());
                    else
                        threadAssertTrue(g == egroup);
                    String name = current.getName();
                    threadAssertTrue(name.endsWith("thread-1"));
                }
            };
        ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
        
        e.execute(r);
        e.shutdown();
        try {
            Thread.sleep(SHORT_DELAY_MS);
        } catch (Exception eX) {
            unexpectedException();
        } finally {
            joinPool(e);
        }
    }

    /**
     * ThreadPoolExecutor using privilegedThreadFactory has
     * specified group, priority, daemon status, name,
     * access control context and context class loader
     */
    public void testPrivilegedThreadFactory() {
        Policy savedPolicy = Policy.getPolicy();
        AdjustablePolicy policy = new AdjustablePolicy();
        policy.addPermission(new RuntimePermission("getContextClassLoader"));
        policy.addPermission(new RuntimePermission("setContextClassLoader"));
        Policy.setPolicy(policy);
        final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
        final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
        final AccessControlContext thisacc = AccessController.getContext();
        Runnable r = new Runnable() {
                public void run() {
                    Thread current = Thread.currentThread();
                    threadAssertTrue(!current.isDaemon());
                    threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
                    ThreadGroup g = current.getThreadGroup();
                    SecurityManager s = System.getSecurityManager();
                    if (s != null)
                        threadAssertTrue(g == s.getThreadGroup());
                    else
                        threadAssertTrue(g == egroup);
                    String name = current.getName();
                    threadAssertTrue(name.endsWith("thread-1"));
                    threadAssertTrue(thisccl == current.getContextClassLoader());
                    threadAssertTrue(thisacc.equals(AccessController.getContext()));
                }
            };
        ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
        
        Policy.setPolicy(savedPolicy);
        e.execute(r);
        e.shutdown();
        try {
            Thread.sleep(SHORT_DELAY_MS);
        } catch (Exception ex) {
            unexpectedException();
        } finally {
            joinPool(e);
        }

    }

    static class CheckCCL implements Callable<Object> {
        public Object call() {
            AccessControlContext acc = AccessController.getContext();
            acc.checkPermission(new RuntimePermission("getContextClassLoader"));
            return null;
        }
    }


    /**
     * Without class loader permissions, creating
     * privilegedCallableUsingCurrentClassLoader throws ACE
     */
    public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
        Policy savedPolicy = Policy.getPolicy();
        AdjustablePolicy policy = new AdjustablePolicy();
        Policy.setPolicy(policy);
        try {
            Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
            shouldThrow();
        } catch(AccessControlException success) {
        } catch(Exception ex) {
            unexpectedException();
        } 
        finally {
            Policy.setPolicy(savedPolicy);
        }
    }

    /**
     * Without class loader permissions, calling
     * privilegedCallableUsingCurrentClassLoader throws ACE
     */
    public void testprivilegedCallableUsingCCLWithPrivs() {
        Policy savedPolicy = Policy.getPolicy();
        AdjustablePolicy policy = new AdjustablePolicy();
        policy.addPermission(new RuntimePermission("getContextClassLoader"));
        policy.addPermission(new RuntimePermission("setContextClassLoader"));
        Policy.setPolicy(policy);
        try {
            Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
            task.call();
        } catch(Exception ex) {
            unexpectedException();
        } 
        finally {
            Policy.setPolicy(savedPolicy);
        }
    }

    /**
     * Without permissions, calling privilegedCallable throws ACE
     */
    public void testprivilegedCallableWithNoPrivs() {
        Policy savedPolicy = Policy.getPolicy();
        AdjustablePolicy policy = new AdjustablePolicy();
        Policy.setPolicy(policy);
        Callable task = Executors.privilegedCallable(new CheckCCL());
        Policy.setPolicy(savedPolicy);
        try {
            task.call();
            shouldThrow();
        } catch(AccessControlException success) {
        } catch(Exception ex) {
            unexpectedException();
        } finally {
        }
    }

    /**
     * With permissions, calling privilegedCallable succeeds
     */
    public void testprivilegedCallableWithPrivs() {
        Policy savedPolicy = Policy.getPolicy();
        AdjustablePolicy policy = new AdjustablePolicy();
        policy.addPermission(new RuntimePermission("getContextClassLoader"));
        policy.addPermission(new RuntimePermission("setContextClassLoader"));
        Policy.setPolicy(policy);
        Callable task = Executors.privilegedCallable(new CheckCCL());
        try {
            task.call();
        } catch(Exception ex) {
            unexpectedException();
        } finally {
            Policy.setPolicy(savedPolicy);
        }
    }

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

    /**
     * callable(Runnable, result) returns result when called
     */ 
    public void testCallable2() {
        try {
            Callable c = Executors.callable(new NoOpRunnable(), one);
            assertEquals(one, c.call());
        } catch(Exception ex) {
            unexpectedException();
        }
    }

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

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


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

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

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

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


}
Revision:	1.12
Committed:	Sat Dec 27 19:26:43 2003 UTC (20 years, 4 months ago) by dl
Branch:	MAIN
Changes since 1.11:	+5 -4 lines
Log Message:	Headers reference Creative Commons
#	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			* 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	dl	1.2	import java.math.BigInteger;
14	dl	1.8	import java.security.*;
15	dl	1.1
16	dl	1.3	public class ExecutorsTest extends JSR166TestCase{
17	dl	1.1	public static void main(String[] args) {
18	tim	1.9	junit.textui.TestRunner.run (suite());
19	dl	1.1	}
20			public static Test suite() {
21	tim	1.9	return new TestSuite(ExecutorsTest.class);
22	dl	1.1	}
23
24	dl	1.4	static class TimedCallable<T> implements Callable<T> {
25	tim	1.10	private final ExecutorService exec;
26	dl	1.4	private final Callable<T> func;
27			private final long msecs;
28
29	tim	1.10	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
30	dl	1.4	this.exec = exec;
31			this.func = func;
32			this.msecs = msecs;
33			}
34
35			public T call() throws Exception {
36	tim	1.10	Future<T> ftask = exec.submit(func);
37	dl	1.4	try {
38			return ftask.get(msecs, TimeUnit.MILLISECONDS);
39			} finally {
40			ftask.cancel(true);
41			}
42			}
43			}
44
45
46			private static class Fib implements Callable<BigInteger> {
47			private final BigInteger n;
48			Fib(long n) {
49			if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
50			this.n = BigInteger.valueOf(n);
51			}
52			public BigInteger call() {
53			BigInteger f1 = BigInteger.ONE;
54			BigInteger f2 = f1;
55			for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
56			BigInteger t = f1.add(f2);
57			f1 = f2;
58			f2 = t;
59			}
60			return f1;
61			}
62			};
63
64	dl	1.5	/**
65			* A newCachedThreadPool can execute runnables
66			*/
67			public void testNewCachedThreadPool1() {
68			ExecutorService e = Executors.newCachedThreadPool();
69			e.execute(new NoOpRunnable());
70			e.execute(new NoOpRunnable());
71			e.execute(new NoOpRunnable());
72			e.shutdown();
73			}
74
75			/**
76			* A newCachedThreadPool with given ThreadFactory can execute runnables
77			*/
78			public void testNewCachedThreadPool2() {
79	dl	1.6	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
80	dl	1.5	e.execute(new NoOpRunnable());
81			e.execute(new NoOpRunnable());
82			e.execute(new NoOpRunnable());
83			e.shutdown();
84			}
85
86			/**
87			* A newCachedThreadPool with null ThreadFactory throws NPE
88			*/
89			public void testNewCachedThreadPool3() {
90			try {
91			ExecutorService e = Executors.newCachedThreadPool(null);
92			shouldThrow();
93			}
94			catch(NullPointerException success) {
95			}
96			}
97
98
99			/**
100			* A new SingleThreadExecutor can execute runnables
101			*/
102			public void testNewSingleThreadExecutor1() {
103			ExecutorService e = Executors.newSingleThreadExecutor();
104			e.execute(new NoOpRunnable());
105			e.execute(new NoOpRunnable());
106			e.execute(new NoOpRunnable());
107			e.shutdown();
108			}
109
110			/**
111			* A new SingleThreadExecutor with given ThreadFactory can execute runnables
112			*/
113			public void testNewSingleThreadExecutor2() {
114	dl	1.6	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
115	dl	1.5	e.execute(new NoOpRunnable());
116			e.execute(new NoOpRunnable());
117			e.execute(new NoOpRunnable());
118			e.shutdown();
119			}
120
121			/**
122			* A new SingleThreadExecutor with null ThreadFactory throws NPE
123			*/
124			public void testNewSingleThreadExecutor3() {
125			try {
126			ExecutorService e = Executors.newSingleThreadExecutor(null);
127			shouldThrow();
128			}
129			catch(NullPointerException success) {
130			}
131			}
132
133			/**
134	dl	1.11	* A new SingleThreadExecutor cannot be casted to concrete implementation
135			*/
136			public void testCastNewSingleThreadExecutor() {
137			ExecutorService e = Executors.newSingleThreadExecutor();
138			try {
139			ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
140			} catch (ClassCastException success) {
141			} finally {
142			joinPool(e);
143			}
144			}
145
146
147			/**
148	dl	1.5	* A new newFixedThreadPool can execute runnables
149			*/
150			public void testNewFixedThreadPool1() {
151			ExecutorService e = Executors.newFixedThreadPool(2);
152			e.execute(new NoOpRunnable());
153			e.execute(new NoOpRunnable());
154			e.execute(new NoOpRunnable());
155			e.shutdown();
156			}
157
158			/**
159			* A new newFixedThreadPool with given ThreadFactory can execute runnables
160			*/
161			public void testNewFixedThreadPool2() {
162	dl	1.6	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
163	dl	1.5	e.execute(new NoOpRunnable());
164			e.execute(new NoOpRunnable());
165			e.execute(new NoOpRunnable());
166			e.shutdown();
167			}
168
169			/**
170			* A new newFixedThreadPool with null ThreadFactory throws NPE
171			*/
172			public void testNewFixedThreadPool3() {
173			try {
174			ExecutorService e = Executors.newFixedThreadPool(2, null);
175			shouldThrow();
176			}
177			catch(NullPointerException success) {
178			}
179			}
180
181			/**
182			* A new newFixedThreadPool with 0 threads throws IAE
183			*/
184			public void testNewFixedThreadPool4() {
185			try {
186			ExecutorService e = Executors.newFixedThreadPool(0);
187			shouldThrow();
188			}
189			catch(IllegalArgumentException success) {
190			}
191			}
192	dl	1.1
193	dl	1.2
194			/**
195	dl	1.11	* An unconfigurable newFixedThreadPool can execute runnables
196			*/
197			public void testunconfigurableExecutorService() {
198			ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
199			e.execute(new NoOpRunnable());
200			e.execute(new NoOpRunnable());
201			e.execute(new NoOpRunnable());
202			e.shutdown();
203			}
204
205			/**
206			* unconfigurableExecutorService(null) throws NPE
207			*/
208			public void testunconfigurableExecutorServiceNPE() {
209			try {
210			ExecutorService e = Executors.unconfigurableExecutorService(null);
211			}
212			catch (NullPointerException success) {
213			}
214			}
215
216			/**
217			* unconfigurableScheduledExecutorService(null) throws NPE
218			*/
219			public void testunconfigurableScheduledExecutorServiceNPE() {
220			try {
221			ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
222			}
223			catch (NullPointerException success) {
224			}
225			}
226
227
228			/**
229			* a newSingleThreadScheduledExecutor successfully runs delayed task
230			*/
231			public void testNewSingleThreadScheduledExecutor() {
232			try {
233			TrackedCallable callable = new TrackedCallable();
234			ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
235			Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
236			assertFalse(callable.done);
237			Thread.sleep(MEDIUM_DELAY_MS);
238			assertTrue(callable.done);
239			assertEquals(Boolean.TRUE, f.get());
240			p1.shutdown();
241			joinPool(p1);
242			} catch(RejectedExecutionException e){}
243			catch(Exception e){
244			e.printStackTrace();
245			unexpectedException();
246			}
247			}
248
249			/**
250			* a newScheduledThreadPool successfully runs delayed task
251			*/
252			public void testnewScheduledThreadPool() {
253			try {
254			TrackedCallable callable = new TrackedCallable();
255			ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
256			Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
257			assertFalse(callable.done);
258			Thread.sleep(MEDIUM_DELAY_MS);
259			assertTrue(callable.done);
260			assertEquals(Boolean.TRUE, f.get());
261			p1.shutdown();
262			joinPool(p1);
263			} catch(RejectedExecutionException e){}
264			catch(Exception e){
265			e.printStackTrace();
266			unexpectedException();
267			}
268			}
269
270			/**
271			* an unconfigurable newScheduledThreadPool successfully runs delayed task
272			*/
273			public void testunconfigurableScheduledExecutorService() {
274			try {
275			TrackedCallable callable = new TrackedCallable();
276			ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
277			Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
278			assertFalse(callable.done);
279			Thread.sleep(MEDIUM_DELAY_MS);
280			assertTrue(callable.done);
281			assertEquals(Boolean.TRUE, f.get());
282			p1.shutdown();
283			joinPool(p1);
284			} catch(RejectedExecutionException e){}
285			catch(Exception e){
286			e.printStackTrace();
287			unexpectedException();
288			}
289			}
290
291			/**
292	dl	1.4	* timeouts from execute will time out if they compute too long.
293	dl	1.2	*/
294			public void testTimedCallable() {
295			int N = 10000;
296			ExecutorService executor = Executors.newSingleThreadExecutor();
297			List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
298			try {
299			long startTime = System.currentTimeMillis();
300
301			long i = 0;
302			while (tasks.size() < N) {
303			tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
304			i += 10;
305			}
306
307			int iters = 0;
308			BigInteger sum = BigInteger.ZERO;
309			for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
310			try {
311			++iters;
312			sum = sum.add(it.next().call());
313			}
314			catch (TimeoutException success) {
315			assertTrue(iters > 0);
316			return;
317			}
318			catch (Exception e) {
319	dl	1.4	unexpectedException();
320	dl	1.2	}
321			}
322			// if by chance we didn't ever time out, total time must be small
323			long elapsed = System.currentTimeMillis() - startTime;
324			assertTrue(elapsed < N);
325			}
326			finally {
327	dl	1.3	joinPool(executor);
328	dl	1.2	}
329			}
330
331
332	dl	1.8	/**
333			* ThreadPoolExecutor using defaultThreadFactory has
334			* specified group, priority, daemon status, and name
335			*/
336			public void testDefaultThreadFactory() {
337	tim	1.9	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
338			Runnable r = new Runnable() {
339			public void run() {
340			Thread current = Thread.currentThread();
341			threadAssertTrue(!current.isDaemon());
342			threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
343			ThreadGroup g = current.getThreadGroup();
344			SecurityManager s = System.getSecurityManager();
345			if (s != null)
346			threadAssertTrue(g == s.getThreadGroup());
347			else
348			threadAssertTrue(g == egroup);
349			String name = current.getName();
350			threadAssertTrue(name.endsWith("thread-1"));
351			}
352			};
353			ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
354
355			e.execute(r);
356			e.shutdown();
357			try {
358			Thread.sleep(SHORT_DELAY_MS);
359			} catch (Exception eX) {
360			unexpectedException();
361			} finally {
362			joinPool(e);
363			}
364	dl	1.8	}
365
366			/**
367			* ThreadPoolExecutor using privilegedThreadFactory has
368			* specified group, priority, daemon status, name,
369			* access control context and context class loader
370			*/
371			public void testPrivilegedThreadFactory() {
372	tim	1.9	Policy savedPolicy = Policy.getPolicy();
373	dl	1.8	AdjustablePolicy policy = new AdjustablePolicy();
374			policy.addPermission(new RuntimePermission("getContextClassLoader"));
375			policy.addPermission(new RuntimePermission("setContextClassLoader"));
376	tim	1.9	Policy.setPolicy(policy);
377			final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
378			final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
379	dl	1.8	final AccessControlContext thisacc = AccessController.getContext();
380	tim	1.9	Runnable r = new Runnable() {
381			public void run() {
382			Thread current = Thread.currentThread();
383			threadAssertTrue(!current.isDaemon());
384			threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
385			ThreadGroup g = current.getThreadGroup();
386			SecurityManager s = System.getSecurityManager();
387			if (s != null)
388			threadAssertTrue(g == s.getThreadGroup());
389			else
390			threadAssertTrue(g == egroup);
391			String name = current.getName();
392			threadAssertTrue(name.endsWith("thread-1"));
393			threadAssertTrue(thisccl == current.getContextClassLoader());
394			threadAssertTrue(thisacc.equals(AccessController.getContext()));
395			}
396			};
397			ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
398
399			Policy.setPolicy(savedPolicy);
400			e.execute(r);
401			e.shutdown();
402			try {
403			Thread.sleep(SHORT_DELAY_MS);
404			} catch (Exception ex) {
405			unexpectedException();
406			} finally {
407			joinPool(e);
408			}
409	dl	1.1
410	dl	1.8	}
411	dl	1.11
412			static class CheckCCL implements Callable<Object> {
413			public Object call() {
414			AccessControlContext acc = AccessController.getContext();
415			acc.checkPermission(new RuntimePermission("getContextClassLoader"));
416			return null;
417			}
418			}
419
420
421			/**
422			* Without class loader permissions, creating
423			* privilegedCallableUsingCurrentClassLoader throws ACE
424			*/
425			public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
426			Policy savedPolicy = Policy.getPolicy();
427			AdjustablePolicy policy = new AdjustablePolicy();
428			Policy.setPolicy(policy);
429			try {
430			Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
431			shouldThrow();
432			} catch(AccessControlException success) {
433			} catch(Exception ex) {
434			unexpectedException();
435			}
436			finally {
437			Policy.setPolicy(savedPolicy);
438			}
439			}
440
441			/**
442			* Without class loader permissions, calling
443			* privilegedCallableUsingCurrentClassLoader throws ACE
444			*/
445			public void testprivilegedCallableUsingCCLWithPrivs() {
446			Policy savedPolicy = Policy.getPolicy();
447			AdjustablePolicy policy = new AdjustablePolicy();
448			policy.addPermission(new RuntimePermission("getContextClassLoader"));
449			policy.addPermission(new RuntimePermission("setContextClassLoader"));
450			Policy.setPolicy(policy);
451			try {
452			Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
453			task.call();
454			} catch(Exception ex) {
455			unexpectedException();
456			}
457			finally {
458			Policy.setPolicy(savedPolicy);
459			}
460			}
461
462			/**
463			* Without permissions, calling privilegedCallable throws ACE
464			*/
465			public void testprivilegedCallableWithNoPrivs() {
466			Policy savedPolicy = Policy.getPolicy();
467			AdjustablePolicy policy = new AdjustablePolicy();
468			Policy.setPolicy(policy);
469			Callable task = Executors.privilegedCallable(new CheckCCL());
470			Policy.setPolicy(savedPolicy);
471			try {
472			task.call();
473			shouldThrow();
474			} catch(AccessControlException success) {
475			} catch(Exception ex) {
476			unexpectedException();
477			} finally {
478			}
479			}
480
481			/**
482			* With permissions, calling privilegedCallable succeeds
483			*/
484			public void testprivilegedCallableWithPrivs() {
485			Policy savedPolicy = Policy.getPolicy();
486			AdjustablePolicy policy = new AdjustablePolicy();
487			policy.addPermission(new RuntimePermission("getContextClassLoader"));
488			policy.addPermission(new RuntimePermission("setContextClassLoader"));
489			Policy.setPolicy(policy);
490			Callable task = Executors.privilegedCallable(new CheckCCL());
491			try {
492			task.call();
493			} catch(Exception ex) {
494			unexpectedException();
495			} finally {
496			Policy.setPolicy(savedPolicy);
497			}
498			}
499
500			/**
501			* callable(Runnable) returns null when called
502			*/
503			public void testCallable1() {
504			try {
505			Callable c = Executors.callable(new NoOpRunnable());
506			assertNull(c.call());
507			} catch(Exception ex) {
508			unexpectedException();
509			}
510
511			}
512
513			/**
514			* callable(Runnable, result) returns result when called
515			*/
516			public void testCallable2() {
517			try {
518			Callable c = Executors.callable(new NoOpRunnable(), one);
519			assertEquals(one, c.call());
520			} catch(Exception ex) {
521			unexpectedException();
522			}
523			}
524
525			/**
526			* callable(PrivilegedAction) returns its result when called
527			*/
528			public void testCallable3() {
529			try {
530			Callable c = Executors.callable(new PrivilegedAction() {
531			public Object run() { return one; }});
532			assertEquals(one, c.call());
533			} catch(Exception ex) {
534			unexpectedException();
535			}
536			}
537
538			/**
539			* callable(PrivilegedExceptionAction) returns its result when called
540			*/
541			public void testCallable4() {
542			try {
543			Callable c = Executors.callable(new PrivilegedExceptionAction() {
544			public Object run() { return one; }});
545			assertEquals(one, c.call());
546			} catch(Exception ex) {
547			unexpectedException();
548			}
549			}
550
551
552			/**
553			* callable(null Runnable) throws NPE
554			*/
555			public void testCallableNPE1() {
556			try {
557			Runnable r = null;
558			Callable c = Executors.callable(r);
559			} catch (NullPointerException success) {
560			}
561			}
562
563			/**
564			* callable(null, result) throws NPE
565			*/
566			public void testCallableNPE2() {
567			try {
568			Runnable r = null;
569			Callable c = Executors.callable(r, one);
570			} catch (NullPointerException success) {
571			}
572			}
573
574			/**
575			* callable(null PrivilegedAction) throws NPE
576			*/
577			public void testCallableNPE3() {
578			try {
579			PrivilegedAction r = null;
580			Callable c = Executors.callable(r);
581			} catch (NullPointerException success) {
582			}
583			}
584
585			/**
586			* callable(null PrivilegedExceptionAction) throws NPE
587			*/
588			public void testCallableNPE4() {
589			try {
590			PrivilegedExceptionAction r = null;
591			Callable c = Executors.callable(r);
592			} catch (NullPointerException success) {
593			}
594			}
595
596	dl	1.1
597			}