56 |
|
* Submitting a null callable throws NPE |
57 |
|
*/ |
58 |
|
public void testSubmitNPE() { |
59 |
< |
ExecutorService e = Executors.newCachedThreadPool(); |
60 |
< |
ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
61 |
< |
try { |
59 |
> |
final ExecutorService e = Executors.newCachedThreadPool(); |
60 |
> |
final ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
61 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
62 |
|
Callable c = null; |
63 |
< |
ecs.submit(c); |
64 |
< |
shouldThrow(); |
65 |
< |
} catch (NullPointerException success) { |
66 |
< |
} finally { |
67 |
< |
joinPool(e); |
63 |
> |
try { |
64 |
> |
ecs.submit(c); |
65 |
> |
shouldThrow(); |
66 |
> |
} catch (NullPointerException success) {} |
67 |
|
} |
68 |
|
} |
69 |
|
|
71 |
|
* Submitting a null runnable throws NPE |
72 |
|
*/ |
73 |
|
public void testSubmitNPE2() { |
74 |
< |
ExecutorService e = Executors.newCachedThreadPool(); |
75 |
< |
ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
76 |
< |
try { |
74 |
> |
final ExecutorService e = Executors.newCachedThreadPool(); |
75 |
> |
final ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
76 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
77 |
|
Runnable r = null; |
78 |
< |
ecs.submit(r, Boolean.TRUE); |
79 |
< |
shouldThrow(); |
80 |
< |
} catch (NullPointerException success) { |
81 |
< |
} finally { |
83 |
< |
joinPool(e); |
78 |
> |
try { |
79 |
> |
ecs.submit(r, Boolean.TRUE); |
80 |
> |
shouldThrow(); |
81 |
> |
} catch (NullPointerException success) {} |
82 |
|
} |
83 |
|
} |
84 |
|
|
86 |
|
* A taken submitted task is completed |
87 |
|
*/ |
88 |
|
public void testTake() throws InterruptedException { |
89 |
< |
ExecutorService e = Executors.newCachedThreadPool(); |
90 |
< |
ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
91 |
< |
try { |
89 |
> |
final ExecutorService e = Executors.newCachedThreadPool(); |
90 |
> |
final ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
91 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
92 |
|
Callable c = new StringTask(); |
93 |
|
ecs.submit(c); |
94 |
|
Future f = ecs.take(); |
95 |
|
assertTrue(f.isDone()); |
98 |
– |
} finally { |
99 |
– |
joinPool(e); |
96 |
|
} |
97 |
|
} |
98 |
|
|
100 |
|
* Take returns the same future object returned by submit |
101 |
|
*/ |
102 |
|
public void testTake2() throws InterruptedException { |
103 |
< |
ExecutorService e = Executors.newCachedThreadPool(); |
104 |
< |
ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
105 |
< |
try { |
103 |
> |
final ExecutorService e = Executors.newCachedThreadPool(); |
104 |
> |
final ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
105 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
106 |
|
Callable c = new StringTask(); |
107 |
|
Future f1 = ecs.submit(c); |
108 |
|
Future f2 = ecs.take(); |
109 |
|
assertSame(f1, f2); |
114 |
– |
} finally { |
115 |
– |
joinPool(e); |
110 |
|
} |
111 |
|
} |
112 |
|
|
114 |
|
* If poll returns non-null, the returned task is completed |
115 |
|
*/ |
116 |
|
public void testPoll1() throws Exception { |
117 |
< |
ExecutorService e = Executors.newCachedThreadPool(); |
118 |
< |
ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
119 |
< |
try { |
117 |
> |
final ExecutorService e = Executors.newCachedThreadPool(); |
118 |
> |
final ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
119 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
120 |
|
assertNull(ecs.poll()); |
121 |
|
Callable c = new StringTask(); |
122 |
|
ecs.submit(c); |
130 |
|
} |
131 |
|
assertTrue(f.isDone()); |
132 |
|
assertSame(TEST_STRING, f.get()); |
139 |
– |
} finally { |
140 |
– |
joinPool(e); |
133 |
|
} |
134 |
|
} |
135 |
|
|
137 |
|
* If timed poll returns non-null, the returned task is completed |
138 |
|
*/ |
139 |
|
public void testPoll2() throws InterruptedException { |
140 |
< |
ExecutorService e = Executors.newCachedThreadPool(); |
141 |
< |
ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
142 |
< |
try { |
140 |
> |
final ExecutorService e = Executors.newCachedThreadPool(); |
141 |
> |
final ExecutorCompletionService ecs = new ExecutorCompletionService(e); |
142 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
143 |
|
assertNull(ecs.poll()); |
144 |
|
Callable c = new StringTask(); |
145 |
|
ecs.submit(c); |
146 |
|
Future f = ecs.poll(SHORT_DELAY_MS, MILLISECONDS); |
147 |
|
if (f != null) |
148 |
|
assertTrue(f.isDone()); |
157 |
– |
} finally { |
158 |
– |
joinPool(e); |
149 |
|
} |
150 |
|
} |
151 |
|
|
159 |
|
MyCallableFuture(Callable<V> c) { super(c); } |
160 |
|
protected void done() { done.set(true); } |
161 |
|
} |
162 |
< |
ExecutorService e = new ThreadPoolExecutor( |
163 |
< |
1, 1, 30L, TimeUnit.SECONDS, |
164 |
< |
new ArrayBlockingQueue<Runnable>(1)) { |
165 |
< |
protected <T> RunnableFuture<T> newTaskFor(Callable<T> c) { |
166 |
< |
return new MyCallableFuture<T>(c); |
167 |
< |
}}; |
162 |
> |
final ExecutorService e = |
163 |
> |
new ThreadPoolExecutor(1, 1, |
164 |
> |
30L, TimeUnit.SECONDS, |
165 |
> |
new ArrayBlockingQueue<Runnable>(1)) { |
166 |
> |
protected <T> RunnableFuture<T> newTaskFor(Callable<T> c) { |
167 |
> |
return new MyCallableFuture<T>(c); |
168 |
> |
}}; |
169 |
|
ExecutorCompletionService<String> ecs = |
170 |
|
new ExecutorCompletionService<String>(e); |
171 |
< |
try { |
171 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
172 |
|
assertNull(ecs.poll()); |
173 |
|
Callable<String> c = new StringTask(); |
174 |
|
Future f1 = ecs.submit(c); |
177 |
|
Future f2 = ecs.take(); |
178 |
|
assertSame("submit and take must return same objects", f1, f2); |
179 |
|
assertTrue("completed task must have set done", done.get()); |
189 |
– |
} finally { |
190 |
– |
joinPool(e); |
180 |
|
} |
181 |
|
} |
182 |
|
|
190 |
|
MyRunnableFuture(Runnable t, V r) { super(t, r); } |
191 |
|
protected void done() { done.set(true); } |
192 |
|
} |
193 |
< |
ExecutorService e = new ThreadPoolExecutor( |
194 |
< |
1, 1, 30L, TimeUnit.SECONDS, |
195 |
< |
new ArrayBlockingQueue<Runnable>(1)) { |
196 |
< |
protected <T> RunnableFuture<T> newTaskFor(Runnable t, T r) { |
197 |
< |
return new MyRunnableFuture<T>(t, r); |
198 |
< |
}}; |
199 |
< |
ExecutorCompletionService<String> ecs = |
193 |
> |
final ExecutorService e = |
194 |
> |
new ThreadPoolExecutor(1, 1, |
195 |
> |
30L, TimeUnit.SECONDS, |
196 |
> |
new ArrayBlockingQueue<Runnable>(1)) { |
197 |
> |
protected <T> RunnableFuture<T> newTaskFor(Runnable t, T r) { |
198 |
> |
return new MyRunnableFuture<T>(t, r); |
199 |
> |
}}; |
200 |
> |
final ExecutorCompletionService<String> ecs = |
201 |
|
new ExecutorCompletionService<String>(e); |
202 |
< |
try { |
202 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
203 |
|
assertNull(ecs.poll()); |
204 |
|
Runnable r = new NoOpRunnable(); |
205 |
|
Future f1 = ecs.submit(r, null); |
208 |
|
Future f2 = ecs.take(); |
209 |
|
assertSame("submit and take must return same objects", f1, f2); |
210 |
|
assertTrue("completed task must have set done", done.get()); |
221 |
– |
} finally { |
222 |
– |
joinPool(e); |
211 |
|
} |
212 |
|
} |
213 |
|
|