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());
        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;
        } 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);
        }
        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());
            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());
            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());
            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() {
                    try {
                        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"));
                    } 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);
        } 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 = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            policy.addPermission(new RuntimePermission("getContextClassLoader"));
            policy.addPermission(new RuntimePermission("setContextClassLoader"));
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }
        final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
        final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
        final AccessControlContext thisacc = AccessController.getContext();
        Runnable r = new Runnable() {
                public void run() {
                    try {
                        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()));
                    } catch(SecurityException ok) {
                        // Also pass if not allowed to change settings
                    }
                }
            };
        ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
        
        Policy.setPolicy(savedPolicy);
        e.execute(r);
        try {
            e.shutdown();
        } catch(SecurityException ok) {
        }
        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 = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }

        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 = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            policy.addPermission(new RuntimePermission("getContextClassLoader"));
            policy.addPermission(new RuntimePermission("setContextClassLoader"));
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }
            
        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 = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }

        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 = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            policy.addPermission(new RuntimePermission("getContextClassLoader"));
            policy.addPermission(new RuntimePermission("setContextClassLoader"));
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }
            
        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:	1.14
Committed:	Tue Jan 20 20:20:56 2004 UTC (20 years, 3 months ago) by dl
Branch:	MAIN
Changes since 1.13:	+67 -33 lines
Log Message:	Don't fail if test harness doesn't have sufficient permissions
#	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	dl	1.14	joinPool(e);
73	dl	1.5	}
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	dl	1.14	joinPool(e);
84	dl	1.5	}
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	dl	1.14	joinPool(e);
108	dl	1.5	}
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	dl	1.14	joinPool(e);
119	dl	1.5	}
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	dl	1.14	joinPool(e);
156	dl	1.5	}
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	dl	1.14	joinPool(e);
167	dl	1.5	}
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	dl	1.14	joinPool(e);
203	dl	1.11	}
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			joinPool(p1);
241			} catch(RejectedExecutionException e){}
242			catch(Exception e){
243			e.printStackTrace();
244			unexpectedException();
245			}
246			}
247
248			/**
249			* a newScheduledThreadPool successfully runs delayed task
250			*/
251			public void testnewScheduledThreadPool() {
252			try {
253			TrackedCallable callable = new TrackedCallable();
254			ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
255			Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
256			assertFalse(callable.done);
257			Thread.sleep(MEDIUM_DELAY_MS);
258			assertTrue(callable.done);
259			assertEquals(Boolean.TRUE, f.get());
260			joinPool(p1);
261			} catch(RejectedExecutionException e){}
262			catch(Exception e){
263			e.printStackTrace();
264			unexpectedException();
265			}
266			}
267
268			/**
269			* an unconfigurable newScheduledThreadPool successfully runs delayed task
270			*/
271			public void testunconfigurableScheduledExecutorService() {
272			try {
273			TrackedCallable callable = new TrackedCallable();
274			ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
275			Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
276			assertFalse(callable.done);
277			Thread.sleep(MEDIUM_DELAY_MS);
278			assertTrue(callable.done);
279			assertEquals(Boolean.TRUE, f.get());
280			joinPool(p1);
281			} catch(RejectedExecutionException e){}
282			catch(Exception e){
283			e.printStackTrace();
284			unexpectedException();
285			}
286			}
287
288			/**
289	dl	1.4	* timeouts from execute will time out if they compute too long.
290	dl	1.2	*/
291			public void testTimedCallable() {
292			int N = 10000;
293			ExecutorService executor = Executors.newSingleThreadExecutor();
294			List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
295			try {
296			long startTime = System.currentTimeMillis();
297
298			long i = 0;
299			while (tasks.size() < N) {
300			tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
301			i += 10;
302			}
303
304			int iters = 0;
305			BigInteger sum = BigInteger.ZERO;
306			for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
307			try {
308			++iters;
309			sum = sum.add(it.next().call());
310			}
311			catch (TimeoutException success) {
312			assertTrue(iters > 0);
313			return;
314			}
315			catch (Exception e) {
316	dl	1.4	unexpectedException();
317	dl	1.2	}
318			}
319			// if by chance we didn't ever time out, total time must be small
320			long elapsed = System.currentTimeMillis() - startTime;
321			assertTrue(elapsed < N);
322			}
323			finally {
324	dl	1.3	joinPool(executor);
325	dl	1.2	}
326			}
327
328
329	dl	1.8	/**
330			* ThreadPoolExecutor using defaultThreadFactory has
331			* specified group, priority, daemon status, and name
332			*/
333			public void testDefaultThreadFactory() {
334	tim	1.9	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
335			Runnable r = new Runnable() {
336			public void run() {
337	dl	1.13	try {
338			Thread current = Thread.currentThread();
339			threadAssertTrue(!current.isDaemon());
340			threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
341			ThreadGroup g = current.getThreadGroup();
342			SecurityManager s = System.getSecurityManager();
343			if (s != null)
344			threadAssertTrue(g == s.getThreadGroup());
345			else
346			threadAssertTrue(g == egroup);
347			String name = current.getName();
348			threadAssertTrue(name.endsWith("thread-1"));
349			} catch (SecurityException ok) {
350			// Also pass if not allowed to change setting
351			}
352	tim	1.9	}
353			};
354			ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
355
356			e.execute(r);
357	dl	1.14	try {
358			e.shutdown();
359			} catch(SecurityException ok) {
360			}
361
362	tim	1.9	try {
363			Thread.sleep(SHORT_DELAY_MS);
364			} catch (Exception eX) {
365			unexpectedException();
366			} finally {
367			joinPool(e);
368			}
369	dl	1.8	}
370
371			/**
372			* ThreadPoolExecutor using privilegedThreadFactory has
373			* specified group, priority, daemon status, name,
374			* access control context and context class loader
375			*/
376			public void testPrivilegedThreadFactory() {
377	dl	1.14	Policy savedPolicy = null;
378			try {
379			savedPolicy = Policy.getPolicy();
380			AdjustablePolicy policy = new AdjustablePolicy();
381			policy.addPermission(new RuntimePermission("getContextClassLoader"));
382			policy.addPermission(new RuntimePermission("setContextClassLoader"));
383			Policy.setPolicy(policy);
384			} catch (AccessControlException ok) {
385			return;
386			}
387	tim	1.9	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
388			final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
389	dl	1.8	final AccessControlContext thisacc = AccessController.getContext();
390	tim	1.9	Runnable r = new Runnable() {
391			public void run() {
392	dl	1.13	try {
393			Thread current = Thread.currentThread();
394			threadAssertTrue(!current.isDaemon());
395			threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
396			ThreadGroup g = current.getThreadGroup();
397			SecurityManager s = System.getSecurityManager();
398			if (s != null)
399			threadAssertTrue(g == s.getThreadGroup());
400			else
401			threadAssertTrue(g == egroup);
402			String name = current.getName();
403			threadAssertTrue(name.endsWith("thread-1"));
404			threadAssertTrue(thisccl == current.getContextClassLoader());
405			threadAssertTrue(thisacc.equals(AccessController.getContext()));
406			} catch(SecurityException ok) {
407			// Also pass if not allowed to change settings
408			}
409	dl	1.14	}
410	tim	1.9	};
411			ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
412
413			Policy.setPolicy(savedPolicy);
414			e.execute(r);
415	dl	1.14	try {
416			e.shutdown();
417			} catch(SecurityException ok) {
418			}
419	tim	1.9	try {
420			Thread.sleep(SHORT_DELAY_MS);
421			} catch (Exception ex) {
422			unexpectedException();
423			} finally {
424			joinPool(e);
425			}
426	dl	1.1
427	dl	1.8	}
428	dl	1.11
429			static class CheckCCL implements Callable<Object> {
430			public Object call() {
431			AccessControlContext acc = AccessController.getContext();
432			acc.checkPermission(new RuntimePermission("getContextClassLoader"));
433			return null;
434			}
435			}
436
437
438			/**
439			* Without class loader permissions, creating
440			* privilegedCallableUsingCurrentClassLoader throws ACE
441			*/
442			public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
443	dl	1.14	Policy savedPolicy = null;
444			try {
445			savedPolicy = Policy.getPolicy();
446			AdjustablePolicy policy = new AdjustablePolicy();
447			Policy.setPolicy(policy);
448			} catch (AccessControlException ok) {
449			return;
450			}
451
452	dl	1.11	try {
453			Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
454			shouldThrow();
455			} catch(AccessControlException success) {
456			} catch(Exception ex) {
457			unexpectedException();
458			}
459			finally {
460			Policy.setPolicy(savedPolicy);
461			}
462			}
463
464			/**
465			* Without class loader permissions, calling
466			* privilegedCallableUsingCurrentClassLoader throws ACE
467			*/
468			public void testprivilegedCallableUsingCCLWithPrivs() {
469	dl	1.14	Policy savedPolicy = null;
470			try {
471			savedPolicy = Policy.getPolicy();
472			AdjustablePolicy policy = new AdjustablePolicy();
473			policy.addPermission(new RuntimePermission("getContextClassLoader"));
474			policy.addPermission(new RuntimePermission("setContextClassLoader"));
475			Policy.setPolicy(policy);
476			} catch (AccessControlException ok) {
477			return;
478			}
479
480	dl	1.11	try {
481			Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
482			task.call();
483			} catch(Exception ex) {
484			unexpectedException();
485			}
486			finally {
487			Policy.setPolicy(savedPolicy);
488			}
489			}
490
491			/**
492			* Without permissions, calling privilegedCallable throws ACE
493			*/
494			public void testprivilegedCallableWithNoPrivs() {
495	dl	1.14	Policy savedPolicy = null;
496			try {
497			savedPolicy = Policy.getPolicy();
498			AdjustablePolicy policy = new AdjustablePolicy();
499			Policy.setPolicy(policy);
500			} catch (AccessControlException ok) {
501			return;
502			}
503
504	dl	1.11	Callable task = Executors.privilegedCallable(new CheckCCL());
505			Policy.setPolicy(savedPolicy);
506			try {
507			task.call();
508			shouldThrow();
509			} catch(AccessControlException success) {
510			} catch(Exception ex) {
511			unexpectedException();
512			} finally {
513			}
514			}
515
516			/**
517			* With permissions, calling privilegedCallable succeeds
518			*/
519			public void testprivilegedCallableWithPrivs() {
520	dl	1.14	Policy savedPolicy = null;
521			try {
522			savedPolicy = Policy.getPolicy();
523			AdjustablePolicy policy = new AdjustablePolicy();
524			policy.addPermission(new RuntimePermission("getContextClassLoader"));
525			policy.addPermission(new RuntimePermission("setContextClassLoader"));
526			Policy.setPolicy(policy);
527			} catch (AccessControlException ok) {
528			return;
529			}
530
531	dl	1.11	Callable task = Executors.privilegedCallable(new CheckCCL());
532			try {
533			task.call();
534			} catch(Exception ex) {
535			unexpectedException();
536			} finally {
537			Policy.setPolicy(savedPolicy);
538			}
539			}
540
541			/**
542			* callable(Runnable) returns null when called
543			*/
544			public void testCallable1() {
545			try {
546			Callable c = Executors.callable(new NoOpRunnable());
547			assertNull(c.call());
548			} catch(Exception ex) {
549			unexpectedException();
550			}
551
552			}
553
554			/**
555			* callable(Runnable, result) returns result when called
556			*/
557			public void testCallable2() {
558			try {
559			Callable c = Executors.callable(new NoOpRunnable(), one);
560			assertEquals(one, c.call());
561			} catch(Exception ex) {
562			unexpectedException();
563			}
564			}
565
566			/**
567			* callable(PrivilegedAction) returns its result when called
568			*/
569			public void testCallable3() {
570			try {
571			Callable c = Executors.callable(new PrivilegedAction() {
572			public Object run() { return one; }});
573			assertEquals(one, c.call());
574			} catch(Exception ex) {
575			unexpectedException();
576			}
577			}
578
579			/**
580			* callable(PrivilegedExceptionAction) returns its result when called
581			*/
582			public void testCallable4() {
583			try {
584			Callable c = Executors.callable(new PrivilegedExceptionAction() {
585			public Object run() { return one; }});
586			assertEquals(one, c.call());
587			} catch(Exception ex) {
588			unexpectedException();
589			}
590			}
591
592
593			/**
594			* callable(null Runnable) throws NPE
595			*/
596			public void testCallableNPE1() {
597			try {
598			Runnable r = null;
599			Callable c = Executors.callable(r);
600			} catch (NullPointerException success) {
601			}
602			}
603
604			/**
605			* callable(null, result) throws NPE
606			*/
607			public void testCallableNPE2() {
608			try {
609			Runnable r = null;
610			Callable c = Executors.callable(r, one);
611			} catch (NullPointerException success) {
612			}
613			}
614
615			/**
616			* callable(null PrivilegedAction) throws NPE
617			*/
618			public void testCallableNPE3() {
619			try {
620			PrivilegedAction r = null;
621			Callable c = Executors.callable(r);
622			} catch (NullPointerException success) {
623			}
624			}
625
626			/**
627			* callable(null PrivilegedExceptionAction) throws NPE
628			*/
629			public void testCallableNPE4() {
630			try {
631			PrivilegedExceptionAction r = null;
632			Callable c = Executors.callable(r);
633			} catch (NullPointerException success) {
634			}
635			}
636
637	dl	1.1
638			}