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import java.util.*; |
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import java.util.concurrent.*; |
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import java.math.BigInteger; |
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import java.security.*; |
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|
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public class ExecutorsTest extends JSR166TestCase{ |
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|
16 |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run (suite()); |
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} |
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|
20 |
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|
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public static Test suite() { |
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return new TestSuite(ExecutorsTest.class); |
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> |
return new TestSuite(ExecutorsTest.class); |
21 |
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} |
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|
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/** |
24 |
< |
* execute(Executor, Runnable) will throw |
25 |
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* RejectedExecutionException Attempting to execute a runnable on |
26 |
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* a full ThreadPool will cause such an exception here, up to 5 |
27 |
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* runnables are attempted on a pool capable on handling one |
28 |
< |
* until it throws an exception |
29 |
< |
*/ |
30 |
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public void testExecute1(){ |
31 |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
32 |
< |
try{ |
33 |
< |
|
34 |
< |
for(int i = 0; i < 5; ++i){ |
35 |
< |
Executors.execute(p, new MediumRunnable(), Boolean.TRUE); |
23 |
> |
static class TimedCallable<T> implements Callable<T> { |
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private final ExecutorService exec; |
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private final Callable<T> func; |
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private final long msecs; |
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|
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TimedCallable(ExecutorService exec, Callable<T> func, long msecs) { |
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this.exec = exec; |
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this.func = func; |
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> |
this.msecs = msecs; |
32 |
> |
} |
33 |
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|
34 |
> |
public T call() throws Exception { |
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> |
Future<T> ftask = exec.submit(func); |
36 |
> |
try { |
37 |
> |
return ftask.get(msecs, TimeUnit.MILLISECONDS); |
38 |
> |
} finally { |
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> |
ftask.cancel(true); |
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} |
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fail("should throw"); |
40 |
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} catch(RejectedExecutionException success){} |
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joinPool(p); |
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} |
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} |
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|
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/** |
45 |
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* execute(Executor, Callable) will throw |
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* RejectedExecutionException Attempting to execute a callable on |
47 |
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* a full ThreadPool will cause such an exception here, up to 5 |
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* runnables are attempted on a pool capable on handling one |
49 |
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* until it throws an exception |
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*/ |
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public void testExecute2(){ |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
53 |
< |
try{ |
54 |
< |
for(int i = 0; i < 5; ++i) { |
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Executors.execute(p, new SmallCallable()); |
44 |
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|
45 |
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private static class Fib implements Callable<BigInteger> { |
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private final BigInteger n; |
47 |
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Fib(long n) { |
48 |
> |
if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n); |
49 |
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this.n = BigInteger.valueOf(n); |
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} |
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public BigInteger call() { |
52 |
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BigInteger f1 = BigInteger.ONE; |
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BigInteger f2 = f1; |
54 |
> |
for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) { |
55 |
> |
BigInteger t = f1.add(f2); |
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> |
f1 = f2; |
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f2 = t; |
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} |
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fail("should throw"); |
60 |
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}catch(RejectedExecutionException e){} |
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joinPool(p); |
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} |
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return f1; |
60 |
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} |
61 |
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}; |
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|
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/** |
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* A newCachedThreadPool can execute runnables |
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*/ |
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public void testNewCachedThreadPool1() { |
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ExecutorService e = Executors.newCachedThreadPool(); |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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e.shutdown(); |
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} |
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|
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/** |
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* invoke(Executor, Runnable) throws InterruptedException |
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* A single use of invoke starts that will wait long enough |
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* for the invoking thread to be interrupted |
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*/ |
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public void testInvoke2(){ |
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final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
81 |
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Thread t = new Thread(new Runnable() { |
82 |
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public void run(){ |
72 |
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try{ |
73 |
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Executors.invoke(p,new Runnable(){ |
74 |
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public void run(){ |
75 |
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try{ |
76 |
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Thread.sleep(MEDIUM_DELAY_MS); |
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fail("should throw"); |
78 |
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}catch(InterruptedException e){ |
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} |
80 |
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} |
81 |
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}); |
82 |
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} catch(InterruptedException success){ |
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} catch(Exception e) { |
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fail("unexpected exception"); |
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} |
86 |
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|
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} |
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}); |
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try{ |
90 |
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t.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
93 |
< |
}catch(Exception e){ |
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< |
fail("unexpected exception"); |
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} |
96 |
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joinPool(p); |
75 |
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* A newCachedThreadPool with given ThreadFactory can execute runnables |
76 |
> |
*/ |
77 |
> |
public void testNewCachedThreadPool2() { |
78 |
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ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory()); |
79 |
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e.execute(new NoOpRunnable()); |
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> |
e.execute(new NoOpRunnable()); |
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> |
e.execute(new NoOpRunnable()); |
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> |
e.shutdown(); |
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} |
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|
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/** |
86 |
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* invoke(Executor, Runnable) will throw |
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* ExecutionException An ExecutionException occurs when the |
88 |
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* underlying Runnable throws an exception, here the |
89 |
< |
* DivideByZeroException will cause an ExecutionException |
90 |
< |
*/ |
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< |
public void testInvoke3(){ |
92 |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
93 |
< |
try{ |
108 |
< |
Runnable r = new Runnable(){ |
109 |
< |
public void run(){ |
110 |
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int i = 5/0; |
111 |
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} |
112 |
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}; |
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|
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for(int i =0; i < 5; i++){ |
115 |
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Executors.invoke(p,r); |
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} |
117 |
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|
118 |
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fail("should throw"); |
119 |
< |
} catch(ExecutionException success){ |
120 |
< |
} catch(Exception e){ |
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fail("should throw EE"); |
86 |
> |
* A newCachedThreadPool with null ThreadFactory throws NPE |
87 |
> |
*/ |
88 |
> |
public void testNewCachedThreadPool3() { |
89 |
> |
try { |
90 |
> |
ExecutorService e = Executors.newCachedThreadPool(null); |
91 |
> |
shouldThrow(); |
92 |
> |
} |
93 |
> |
catch(NullPointerException success) { |
94 |
|
} |
123 |
– |
joinPool(p); |
95 |
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} |
96 |
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|
97 |
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|
127 |
– |
|
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/** |
99 |
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* invoke(Executor, Callable) throws |
130 |
< |
* InterruptedException A single use of invoke starts that will |
131 |
< |
* wait long enough for the invoking thread to be interrupted |
99 |
> |
* A new SingleThreadExecutor can execute runnables |
100 |
|
*/ |
101 |
< |
public void testInvoke5(){ |
102 |
< |
final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
103 |
< |
|
104 |
< |
final Callable c = new Callable(){ |
105 |
< |
public Object call(){ |
106 |
< |
try{ |
139 |
< |
Executors.invoke(p, new SmallCallable()); |
140 |
< |
fail("should throw"); |
141 |
< |
}catch(InterruptedException e){} |
142 |
< |
catch(RejectedExecutionException e2){} |
143 |
< |
catch(ExecutionException e3){} |
144 |
< |
return Boolean.TRUE; |
145 |
< |
} |
146 |
< |
}; |
147 |
< |
|
148 |
< |
|
149 |
< |
|
150 |
< |
Thread t = new Thread(new Runnable(){ |
151 |
< |
public void run(){ |
152 |
< |
try{ |
153 |
< |
c.call(); |
154 |
< |
}catch(Exception e){} |
155 |
< |
} |
156 |
< |
}); |
157 |
< |
try{ |
158 |
< |
t.start(); |
159 |
< |
Thread.sleep(SHORT_DELAY_MS); |
160 |
< |
t.interrupt(); |
161 |
< |
t.join(); |
162 |
< |
}catch(InterruptedException e){ |
163 |
< |
fail("unexpected exception"); |
164 |
< |
} |
165 |
< |
|
166 |
< |
joinPool(p); |
101 |
> |
public void testNewSingleThreadExecutor1() { |
102 |
> |
ExecutorService e = Executors.newSingleThreadExecutor(); |
103 |
> |
e.execute(new NoOpRunnable()); |
104 |
> |
e.execute(new NoOpRunnable()); |
105 |
> |
e.execute(new NoOpRunnable()); |
106 |
> |
e.shutdown(); |
107 |
|
} |
108 |
|
|
109 |
|
/** |
110 |
< |
* invoke(Executor, Callable) will throw ExecutionException |
171 |
< |
* An ExecutionException occurs when the underlying Runnable throws |
172 |
< |
* an exception, here the DivideByZeroException will cause an ExecutionException |
110 |
> |
* A new SingleThreadExecutor with given ThreadFactory can execute runnables |
111 |
|
*/ |
112 |
< |
public void testInvoke6(){ |
113 |
< |
ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
114 |
< |
|
115 |
< |
try{ |
116 |
< |
Callable c = new Callable(){ |
117 |
< |
public Object call(){ |
180 |
< |
int i = 5/0; |
181 |
< |
return Boolean.TRUE; |
182 |
< |
} |
183 |
< |
}; |
184 |
< |
|
185 |
< |
for(int i =0; i < 5; i++){ |
186 |
< |
Executors.invoke(p,c); |
187 |
< |
} |
188 |
< |
|
189 |
< |
fail("should throw"); |
190 |
< |
}catch(RejectedExecutionException e){} |
191 |
< |
catch(InterruptedException e2){} |
192 |
< |
catch(ExecutionException e3){} |
193 |
< |
joinPool(p); |
112 |
> |
public void testNewSingleThreadExecutor2() { |
113 |
> |
ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory()); |
114 |
> |
e.execute(new NoOpRunnable()); |
115 |
> |
e.execute(new NoOpRunnable()); |
116 |
> |
e.execute(new NoOpRunnable()); |
117 |
> |
e.shutdown(); |
118 |
|
} |
119 |
|
|
120 |
< |
public void testExecuteRunnable () { |
120 |
> |
/** |
121 |
> |
* A new SingleThreadExecutor with null ThreadFactory throws NPE |
122 |
> |
*/ |
123 |
> |
public void testNewSingleThreadExecutor3() { |
124 |
|
try { |
125 |
< |
Executor e = new DirectExecutor(); |
126 |
< |
Task task = new Task(); |
200 |
< |
|
201 |
< |
assertFalse("task should not be complete", task.isCompleted()); |
202 |
< |
|
203 |
< |
Future<String> future = Executors.execute(e, task, TEST_STRING); |
204 |
< |
String result = future.get(); |
205 |
< |
|
206 |
< |
assertTrue("task should be complete", task.isCompleted()); |
207 |
< |
assertSame("should return test string", TEST_STRING, result); |
208 |
< |
} |
209 |
< |
catch (ExecutionException ex) { |
210 |
< |
fail("Unexpected exception"); |
125 |
> |
ExecutorService e = Executors.newSingleThreadExecutor(null); |
126 |
> |
shouldThrow(); |
127 |
|
} |
128 |
< |
catch (InterruptedException ex) { |
213 |
< |
fail("Unexpected exception"); |
128 |
> |
catch(NullPointerException success) { |
129 |
|
} |
130 |
|
} |
131 |
|
|
132 |
< |
public void testInvokeRunnable () { |
133 |
< |
try { |
134 |
< |
Executor e = new DirectExecutor(); |
135 |
< |
Task task = new Task(); |
136 |
< |
|
137 |
< |
assertFalse("task should not be complete", task.isCompleted()); |
138 |
< |
|
139 |
< |
Executors.invoke(e, task); |
132 |
> |
/** |
133 |
> |
* A new newFixedThreadPool can execute runnables |
134 |
> |
*/ |
135 |
> |
public void testNewFixedThreadPool1() { |
136 |
> |
ExecutorService e = Executors.newFixedThreadPool(2); |
137 |
> |
e.execute(new NoOpRunnable()); |
138 |
> |
e.execute(new NoOpRunnable()); |
139 |
> |
e.execute(new NoOpRunnable()); |
140 |
> |
e.shutdown(); |
141 |
> |
} |
142 |
|
|
143 |
< |
assertTrue("task should be complete", task.isCompleted()); |
144 |
< |
} |
145 |
< |
catch (ExecutionException ex) { |
146 |
< |
fail("Unexpected exception"); |
147 |
< |
} |
148 |
< |
catch (InterruptedException ex) { |
149 |
< |
fail("Unexpected exception"); |
150 |
< |
} |
143 |
> |
/** |
144 |
> |
* A new newFixedThreadPool with given ThreadFactory can execute runnables |
145 |
> |
*/ |
146 |
> |
public void testNewFixedThreadPool2() { |
147 |
> |
ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory()); |
148 |
> |
e.execute(new NoOpRunnable()); |
149 |
> |
e.execute(new NoOpRunnable()); |
150 |
> |
e.execute(new NoOpRunnable()); |
151 |
> |
e.shutdown(); |
152 |
|
} |
153 |
|
|
154 |
< |
public void testExecuteCallable () { |
154 |
> |
/** |
155 |
> |
* A new newFixedThreadPool with null ThreadFactory throws NPE |
156 |
> |
*/ |
157 |
> |
public void testNewFixedThreadPool3() { |
158 |
|
try { |
159 |
< |
Executor e = new DirectExecutor(); |
160 |
< |
Future<String> future = Executors.execute(e, new StringTask()); |
240 |
< |
String result = future.get(); |
241 |
< |
|
242 |
< |
assertSame("should return test string", TEST_STRING, result); |
243 |
< |
} |
244 |
< |
catch (ExecutionException ex) { |
245 |
< |
fail("Unexpected exception"); |
159 |
> |
ExecutorService e = Executors.newFixedThreadPool(2, null); |
160 |
> |
shouldThrow(); |
161 |
|
} |
162 |
< |
catch (InterruptedException ex) { |
248 |
< |
fail("Unexpected exception"); |
162 |
> |
catch(NullPointerException success) { |
163 |
|
} |
164 |
|
} |
165 |
|
|
166 |
< |
public void testInvokeCallable () { |
166 |
> |
/** |
167 |
> |
* A new newFixedThreadPool with 0 threads throws IAE |
168 |
> |
*/ |
169 |
> |
public void testNewFixedThreadPool4() { |
170 |
|
try { |
171 |
< |
Executor e = new DirectExecutor(); |
172 |
< |
String result = Executors.invoke(e, new StringTask()); |
256 |
< |
|
257 |
< |
assertSame("should return test string", TEST_STRING, result); |
258 |
< |
} |
259 |
< |
catch (ExecutionException ex) { |
260 |
< |
fail("Unexpected exception" ); |
171 |
> |
ExecutorService e = Executors.newFixedThreadPool(0); |
172 |
> |
shouldThrow(); |
173 |
|
} |
174 |
< |
catch (InterruptedException ex) { |
263 |
< |
fail("Unexpected exception"); |
174 |
> |
catch(IllegalArgumentException success) { |
175 |
|
} |
176 |
|
} |
177 |
|
|
267 |
– |
private static final String TEST_STRING = "a test string"; |
268 |
– |
|
269 |
– |
private static class Task implements Runnable { |
270 |
– |
public void run() { completed = true; } |
271 |
– |
public boolean isCompleted() { return completed; } |
272 |
– |
public void reset() { completed = false; } |
273 |
– |
private boolean completed = false; |
274 |
– |
} |
275 |
– |
|
276 |
– |
private static class StringTask implements Callable<String> { |
277 |
– |
public String call() { return TEST_STRING; } |
278 |
– |
} |
279 |
– |
|
280 |
– |
static class DirectExecutor implements Executor { |
281 |
– |
public void execute(Runnable r) { |
282 |
– |
r.run(); |
283 |
– |
} |
284 |
– |
} |
178 |
|
|
179 |
|
/** |
180 |
< |
* Check that timeouts from execute will time out if they compute |
288 |
< |
* too long. |
180 |
> |
* timeouts from execute will time out if they compute too long. |
181 |
|
*/ |
290 |
– |
|
182 |
|
public void testTimedCallable() { |
183 |
|
int N = 10000; |
184 |
|
ExecutorService executor = Executors.newSingleThreadExecutor(); |
204 |
|
return; |
205 |
|
} |
206 |
|
catch (Exception e) { |
207 |
< |
fail("unexpected exception: " + e); |
207 |
> |
unexpectedException(); |
208 |
|
} |
209 |
|
} |
210 |
|
// if by chance we didn't ever time out, total time must be small |
217 |
|
} |
218 |
|
|
219 |
|
|
220 |
< |
static class TimedCallable<T> implements Callable<T> { |
221 |
< |
private final Executor exec; |
222 |
< |
private final Callable<T> func; |
223 |
< |
private final long msecs; |
224 |
< |
|
225 |
< |
TimedCallable(Executor exec, Callable<T> func, long msecs) { |
226 |
< |
this.exec = exec; |
227 |
< |
this.func = func; |
228 |
< |
this.msecs = msecs; |
229 |
< |
} |
220 |
> |
/** |
221 |
> |
* ThreadPoolExecutor using defaultThreadFactory has |
222 |
> |
* specified group, priority, daemon status, and name |
223 |
> |
*/ |
224 |
> |
public void testDefaultThreadFactory() { |
225 |
> |
final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
226 |
> |
Runnable r = new Runnable() { |
227 |
> |
public void run() { |
228 |
> |
Thread current = Thread.currentThread(); |
229 |
> |
threadAssertTrue(!current.isDaemon()); |
230 |
> |
threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY); |
231 |
> |
ThreadGroup g = current.getThreadGroup(); |
232 |
> |
SecurityManager s = System.getSecurityManager(); |
233 |
> |
if (s != null) |
234 |
> |
threadAssertTrue(g == s.getThreadGroup()); |
235 |
> |
else |
236 |
> |
threadAssertTrue(g == egroup); |
237 |
> |
String name = current.getName(); |
238 |
> |
threadAssertTrue(name.endsWith("thread-1")); |
239 |
> |
} |
240 |
> |
}; |
241 |
> |
ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory()); |
242 |
|
|
243 |
< |
public T call() throws Exception { |
244 |
< |
Future<T> ftask = Executors.execute(exec, func); |
245 |
< |
try { |
246 |
< |
return ftask.get(msecs, TimeUnit.MILLISECONDS); |
247 |
< |
} finally { |
248 |
< |
ftask.cancel(true); |
249 |
< |
} |
243 |
> |
e.execute(r); |
244 |
> |
e.shutdown(); |
245 |
> |
try { |
246 |
> |
Thread.sleep(SHORT_DELAY_MS); |
247 |
> |
} catch (Exception eX) { |
248 |
> |
unexpectedException(); |
249 |
> |
} finally { |
250 |
> |
joinPool(e); |
251 |
|
} |
252 |
|
} |
253 |
|
|
254 |
< |
|
255 |
< |
private static class Fib implements Callable<BigInteger> { |
256 |
< |
private final BigInteger n; |
257 |
< |
Fib(long n) { |
258 |
< |
if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n); |
259 |
< |
this.n = BigInteger.valueOf(n); |
260 |
< |
} |
261 |
< |
public BigInteger call() { |
262 |
< |
BigInteger f1 = BigInteger.ONE; |
263 |
< |
BigInteger f2 = f1; |
264 |
< |
for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) { |
265 |
< |
BigInteger t = f1.add(f2); |
266 |
< |
f1 = f2; |
267 |
< |
f2 = t; |
268 |
< |
} |
269 |
< |
return f1; |
254 |
> |
/** |
255 |
> |
* ThreadPoolExecutor using privilegedThreadFactory has |
256 |
> |
* specified group, priority, daemon status, name, |
257 |
> |
* access control context and context class loader |
258 |
> |
*/ |
259 |
> |
public void testPrivilegedThreadFactory() { |
260 |
> |
Policy savedPolicy = Policy.getPolicy(); |
261 |
> |
AdjustablePolicy policy = new AdjustablePolicy(); |
262 |
> |
policy.addPermission(new RuntimePermission("getContextClassLoader")); |
263 |
> |
policy.addPermission(new RuntimePermission("setContextClassLoader")); |
264 |
> |
Policy.setPolicy(policy); |
265 |
> |
final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
266 |
> |
final ClassLoader thisccl = Thread.currentThread().getContextClassLoader(); |
267 |
> |
final AccessControlContext thisacc = AccessController.getContext(); |
268 |
> |
Runnable r = new Runnable() { |
269 |
> |
public void run() { |
270 |
> |
Thread current = Thread.currentThread(); |
271 |
> |
threadAssertTrue(!current.isDaemon()); |
272 |
> |
threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY); |
273 |
> |
ThreadGroup g = current.getThreadGroup(); |
274 |
> |
SecurityManager s = System.getSecurityManager(); |
275 |
> |
if (s != null) |
276 |
> |
threadAssertTrue(g == s.getThreadGroup()); |
277 |
> |
else |
278 |
> |
threadAssertTrue(g == egroup); |
279 |
> |
String name = current.getName(); |
280 |
> |
threadAssertTrue(name.endsWith("thread-1")); |
281 |
> |
threadAssertTrue(thisccl == current.getContextClassLoader()); |
282 |
> |
threadAssertTrue(thisacc.equals(AccessController.getContext())); |
283 |
> |
} |
284 |
> |
}; |
285 |
> |
ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory()); |
286 |
> |
|
287 |
> |
Policy.setPolicy(savedPolicy); |
288 |
> |
e.execute(r); |
289 |
> |
e.shutdown(); |
290 |
> |
try { |
291 |
> |
Thread.sleep(SHORT_DELAY_MS); |
292 |
> |
} catch (Exception ex) { |
293 |
> |
unexpectedException(); |
294 |
> |
} finally { |
295 |
> |
joinPool(e); |
296 |
|
} |
367 |
– |
}; |
368 |
– |
|
297 |
|
|
298 |
+ |
} |
299 |
|
|
300 |
|
} |