1 |
dl |
1.1 |
/* |
2 |
dl |
1.6 |
* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
|
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* Expert Group and released to the public domain, as explained at |
4 |
jsr166 |
1.17 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
jsr166 |
1.9 |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
|
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* Pat Fisher, Mike Judd. |
7 |
dl |
1.1 |
*/ |
8 |
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9 |
|
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import junit.framework.*; |
10 |
|
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import java.util.*; |
11 |
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import java.util.concurrent.*; |
12 |
dl |
1.8 |
import java.util.concurrent.locks.*; |
13 |
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import java.util.concurrent.atomic.*; |
14 |
jsr166 |
1.13 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
15 |
dl |
1.1 |
|
16 |
jsr166 |
1.11 |
public class CyclicBarrierTest extends JSR166TestCase { |
17 |
dl |
1.1 |
public static void main(String[] args) { |
18 |
jsr166 |
1.15 |
junit.textui.TestRunner.run(suite()); |
19 |
dl |
1.1 |
} |
20 |
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public static Test suite() { |
21 |
jsr166 |
1.12 |
return new TestSuite(CyclicBarrierTest.class); |
22 |
dl |
1.1 |
} |
23 |
dl |
1.3 |
|
24 |
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private volatile int countAction; |
25 |
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private class MyAction implements Runnable { |
26 |
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public void run() { ++countAction; } |
27 |
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} |
28 |
jsr166 |
1.9 |
|
29 |
dl |
1.3 |
/** |
30 |
dl |
1.4 |
* Creating with negative parties throws IAE |
31 |
dl |
1.3 |
*/ |
32 |
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public void testConstructor1() { |
33 |
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try { |
34 |
dl |
1.1 |
new CyclicBarrier(-1, (Runnable)null); |
35 |
dl |
1.3 |
shouldThrow(); |
36 |
jsr166 |
1.14 |
} catch (IllegalArgumentException success) {} |
37 |
dl |
1.1 |
} |
38 |
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|
39 |
dl |
1.3 |
/** |
40 |
dl |
1.4 |
* Creating with negative parties and no action throws IAE |
41 |
dl |
1.3 |
*/ |
42 |
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public void testConstructor2() { |
43 |
|
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try { |
44 |
dl |
1.1 |
new CyclicBarrier(-1); |
45 |
dl |
1.3 |
shouldThrow(); |
46 |
jsr166 |
1.14 |
} catch (IllegalArgumentException success) {} |
47 |
dl |
1.1 |
} |
48 |
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|
49 |
dl |
1.3 |
/** |
50 |
dl |
1.4 |
* getParties returns the number of parties given in constructor |
51 |
dl |
1.3 |
*/ |
52 |
dl |
1.4 |
public void testGetParties() { |
53 |
dl |
1.1 |
CyclicBarrier b = new CyclicBarrier(2); |
54 |
jsr166 |
1.12 |
assertEquals(2, b.getParties()); |
55 |
dl |
1.1 |
assertEquals(0, b.getNumberWaiting()); |
56 |
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} |
57 |
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|
58 |
dl |
1.3 |
/** |
59 |
dl |
1.5 |
* A 1-party barrier triggers after single await |
60 |
dl |
1.3 |
*/ |
61 |
jsr166 |
1.14 |
public void testSingleParty() throws Exception { |
62 |
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CyclicBarrier b = new CyclicBarrier(1); |
63 |
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assertEquals(1, b.getParties()); |
64 |
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assertEquals(0, b.getNumberWaiting()); |
65 |
|
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b.await(); |
66 |
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b.await(); |
67 |
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assertEquals(0, b.getNumberWaiting()); |
68 |
dl |
1.1 |
} |
69 |
jsr166 |
1.9 |
|
70 |
dl |
1.3 |
/** |
71 |
dl |
1.4 |
* The supplied barrier action is run at barrier |
72 |
dl |
1.3 |
*/ |
73 |
jsr166 |
1.14 |
public void testBarrierAction() throws Exception { |
74 |
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countAction = 0; |
75 |
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CyclicBarrier b = new CyclicBarrier(1, new MyAction()); |
76 |
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assertEquals(1, b.getParties()); |
77 |
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assertEquals(0, b.getNumberWaiting()); |
78 |
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b.await(); |
79 |
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b.await(); |
80 |
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assertEquals(0, b.getNumberWaiting()); |
81 |
|
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assertEquals(countAction, 2); |
82 |
dl |
1.1 |
} |
83 |
|
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|
84 |
dl |
1.3 |
/** |
85 |
dl |
1.5 |
* A 2-party/thread barrier triggers after both threads invoke await |
86 |
dl |
1.3 |
*/ |
87 |
jsr166 |
1.14 |
public void testTwoParties() throws Exception { |
88 |
dl |
1.1 |
final CyclicBarrier b = new CyclicBarrier(2); |
89 |
jsr166 |
1.21 |
Thread t = newStartedThread(new CheckedRunnable() { |
90 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
91 |
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b.await(); |
92 |
|
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b.await(); |
93 |
|
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b.await(); |
94 |
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b.await(); |
95 |
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}}); |
96 |
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|
97 |
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b.await(); |
98 |
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b.await(); |
99 |
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b.await(); |
100 |
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b.await(); |
101 |
jsr166 |
1.21 |
awaitTermination(t); |
102 |
dl |
1.1 |
} |
103 |
|
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|
104 |
dl |
1.3 |
/** |
105 |
dl |
1.4 |
* An interruption in one party causes others waiting in await to |
106 |
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* throw BrokenBarrierException |
107 |
dl |
1.3 |
*/ |
108 |
jsr166 |
1.21 |
public void testAwait1_Interrupted_BrokenBarrier() { |
109 |
dl |
1.1 |
final CyclicBarrier c = new CyclicBarrier(3); |
110 |
jsr166 |
1.21 |
final CountDownLatch pleaseInterrupt = new CountDownLatch(2); |
111 |
jsr166 |
1.14 |
Thread t1 = new ThreadShouldThrow(InterruptedException.class) { |
112 |
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public void realRun() throws Exception { |
113 |
jsr166 |
1.21 |
pleaseInterrupt.countDown(); |
114 |
jsr166 |
1.14 |
c.await(); |
115 |
|
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}}; |
116 |
|
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Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
117 |
|
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public void realRun() throws Exception { |
118 |
jsr166 |
1.21 |
pleaseInterrupt.countDown(); |
119 |
jsr166 |
1.14 |
c.await(); |
120 |
|
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}}; |
121 |
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|
122 |
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t1.start(); |
123 |
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t2.start(); |
124 |
jsr166 |
1.21 |
await(pleaseInterrupt); |
125 |
jsr166 |
1.14 |
t1.interrupt(); |
126 |
jsr166 |
1.21 |
awaitTermination(t1); |
127 |
|
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awaitTermination(t2); |
128 |
dl |
1.1 |
} |
129 |
|
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|
130 |
dl |
1.3 |
/** |
131 |
dl |
1.4 |
* An interruption in one party causes others waiting in timed await to |
132 |
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* throw BrokenBarrierException |
133 |
dl |
1.3 |
*/ |
134 |
jsr166 |
1.14 |
public void testAwait2_Interrupted_BrokenBarrier() throws Exception { |
135 |
dl |
1.8 |
final CyclicBarrier c = new CyclicBarrier(3); |
136 |
jsr166 |
1.21 |
final CountDownLatch pleaseInterrupt = new CountDownLatch(2); |
137 |
jsr166 |
1.14 |
Thread t1 = new ThreadShouldThrow(InterruptedException.class) { |
138 |
|
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public void realRun() throws Exception { |
139 |
jsr166 |
1.21 |
pleaseInterrupt.countDown(); |
140 |
jsr166 |
1.14 |
c.await(LONG_DELAY_MS, MILLISECONDS); |
141 |
|
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}}; |
142 |
|
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Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
143 |
|
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public void realRun() throws Exception { |
144 |
jsr166 |
1.21 |
pleaseInterrupt.countDown(); |
145 |
jsr166 |
1.14 |
c.await(LONG_DELAY_MS, MILLISECONDS); |
146 |
|
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}}; |
147 |
|
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|
148 |
|
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t1.start(); |
149 |
|
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t2.start(); |
150 |
jsr166 |
1.21 |
await(pleaseInterrupt); |
151 |
jsr166 |
1.14 |
t1.interrupt(); |
152 |
jsr166 |
1.21 |
awaitTermination(t1); |
153 |
|
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awaitTermination(t2); |
154 |
dl |
1.1 |
} |
155 |
jsr166 |
1.9 |
|
156 |
dl |
1.3 |
/** |
157 |
dl |
1.4 |
* A timeout in timed await throws TimeoutException |
158 |
dl |
1.3 |
*/ |
159 |
jsr166 |
1.19 |
public void testAwait3_TimeoutException() throws InterruptedException { |
160 |
dl |
1.1 |
final CyclicBarrier c = new CyclicBarrier(2); |
161 |
jsr166 |
1.21 |
Thread t = newStartedThread(new CheckedRunnable() { |
162 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
163 |
jsr166 |
1.21 |
long startTime = System.nanoTime(); |
164 |
|
|
try { |
165 |
|
|
c.await(timeoutMillis(), MILLISECONDS); |
166 |
|
|
shouldThrow(); |
167 |
|
|
} catch (TimeoutException success) {} |
168 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
169 |
|
|
}}); |
170 |
jsr166 |
1.9 |
|
171 |
jsr166 |
1.21 |
awaitTermination(t); |
172 |
dl |
1.5 |
} |
173 |
|
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|
174 |
|
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/** |
175 |
|
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* A timeout in one party causes others waiting in timed await to |
176 |
|
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* throw BrokenBarrierException |
177 |
|
|
*/ |
178 |
jsr166 |
1.14 |
public void testAwait4_Timeout_BrokenBarrier() throws InterruptedException { |
179 |
dl |
1.8 |
final CyclicBarrier c = new CyclicBarrier(3); |
180 |
jsr166 |
1.21 |
Thread t1 = newStartedThread(new CheckedRunnable() { |
181 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
182 |
jsr166 |
1.21 |
try { |
183 |
|
|
c.await(LONG_DELAY_MS, MILLISECONDS); |
184 |
|
|
shouldThrow(); |
185 |
|
|
} catch (BrokenBarrierException success) {} |
186 |
|
|
}}); |
187 |
|
|
Thread t2 = newStartedThread(new CheckedRunnable() { |
188 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
189 |
jsr166 |
1.21 |
while (c.getNumberWaiting() == 0) |
190 |
|
|
Thread.yield(); |
191 |
|
|
long startTime = System.nanoTime(); |
192 |
|
|
try { |
193 |
|
|
c.await(timeoutMillis(), MILLISECONDS); |
194 |
|
|
shouldThrow(); |
195 |
|
|
} catch (TimeoutException success) {} |
196 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
197 |
|
|
}}); |
198 |
jsr166 |
1.14 |
|
199 |
jsr166 |
1.21 |
awaitTermination(t1); |
200 |
|
|
awaitTermination(t2); |
201 |
dl |
1.5 |
} |
202 |
|
|
|
203 |
|
|
/** |
204 |
|
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* A timeout in one party causes others waiting in await to |
205 |
|
|
* throw BrokenBarrierException |
206 |
|
|
*/ |
207 |
jsr166 |
1.14 |
public void testAwait5_Timeout_BrokenBarrier() throws InterruptedException { |
208 |
dl |
1.8 |
final CyclicBarrier c = new CyclicBarrier(3); |
209 |
jsr166 |
1.21 |
Thread t1 = newStartedThread(new CheckedRunnable() { |
210 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
211 |
jsr166 |
1.21 |
try { |
212 |
|
|
c.await(); |
213 |
|
|
shouldThrow(); |
214 |
|
|
} catch (BrokenBarrierException success) {} |
215 |
|
|
}}); |
216 |
|
|
Thread t2 = newStartedThread(new CheckedRunnable() { |
217 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
218 |
jsr166 |
1.21 |
while (c.getNumberWaiting() == 0) |
219 |
|
|
Thread.yield(); |
220 |
|
|
long startTime = System.nanoTime(); |
221 |
|
|
try { |
222 |
|
|
c.await(timeoutMillis(), MILLISECONDS); |
223 |
|
|
shouldThrow(); |
224 |
|
|
} catch (TimeoutException success) {} |
225 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
226 |
|
|
}}); |
227 |
jsr166 |
1.14 |
|
228 |
jsr166 |
1.21 |
awaitTermination(t1); |
229 |
|
|
awaitTermination(t2); |
230 |
dl |
1.1 |
} |
231 |
jsr166 |
1.9 |
|
232 |
dl |
1.4 |
/** |
233 |
|
|
* A reset of an active barrier causes waiting threads to throw |
234 |
|
|
* BrokenBarrierException |
235 |
|
|
*/ |
236 |
jsr166 |
1.14 |
public void testReset_BrokenBarrier() throws InterruptedException { |
237 |
dl |
1.22 |
Thread.interrupted(); // ensure current thread not interrupted |
238 |
dl |
1.4 |
final CyclicBarrier c = new CyclicBarrier(3); |
239 |
jsr166 |
1.21 |
final CountDownLatch pleaseReset = new CountDownLatch(2); |
240 |
jsr166 |
1.14 |
Thread t1 = new ThreadShouldThrow(BrokenBarrierException.class) { |
241 |
|
|
public void realRun() throws Exception { |
242 |
jsr166 |
1.21 |
pleaseReset.countDown(); |
243 |
jsr166 |
1.14 |
c.await(); |
244 |
|
|
}}; |
245 |
|
|
Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
246 |
|
|
public void realRun() throws Exception { |
247 |
jsr166 |
1.21 |
pleaseReset.countDown(); |
248 |
jsr166 |
1.14 |
c.await(); |
249 |
|
|
}}; |
250 |
|
|
|
251 |
|
|
t1.start(); |
252 |
|
|
t2.start(); |
253 |
jsr166 |
1.21 |
await(pleaseReset); |
254 |
jsr166 |
1.14 |
c.reset(); |
255 |
jsr166 |
1.21 |
awaitTermination(t1); |
256 |
|
|
awaitTermination(t2); |
257 |
dl |
1.4 |
} |
258 |
|
|
|
259 |
|
|
/** |
260 |
|
|
* A reset before threads enter barrier does not throw |
261 |
|
|
* BrokenBarrierException |
262 |
|
|
*/ |
263 |
jsr166 |
1.14 |
public void testReset_NoBrokenBarrier() throws Exception { |
264 |
dl |
1.4 |
final CyclicBarrier c = new CyclicBarrier(3); |
265 |
jsr166 |
1.21 |
c.reset(); |
266 |
|
|
|
267 |
|
|
Thread t1 = newStartedThread(new CheckedRunnable() { |
268 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
269 |
|
|
c.await(); |
270 |
|
|
}}); |
271 |
jsr166 |
1.21 |
Thread t2 = newStartedThread(new CheckedRunnable() { |
272 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
273 |
|
|
c.await(); |
274 |
|
|
}}); |
275 |
|
|
|
276 |
|
|
c.await(); |
277 |
jsr166 |
1.21 |
awaitTermination(t1); |
278 |
|
|
awaitTermination(t2); |
279 |
dl |
1.4 |
} |
280 |
|
|
|
281 |
dl |
1.8 |
/** |
282 |
|
|
* All threads block while a barrier is broken. |
283 |
|
|
*/ |
284 |
jsr166 |
1.14 |
public void testReset_Leakage() throws InterruptedException { |
285 |
|
|
final CyclicBarrier c = new CyclicBarrier(2); |
286 |
|
|
final AtomicBoolean done = new AtomicBoolean(); |
287 |
jsr166 |
1.21 |
Thread t = newStartedThread(new CheckedRunnable() { |
288 |
jsr166 |
1.20 |
public void realRun() { |
289 |
|
|
while (!done.get()) { |
290 |
|
|
try { |
291 |
|
|
while (c.isBroken()) |
292 |
|
|
c.reset(); |
293 |
|
|
|
294 |
|
|
c.await(); |
295 |
|
|
shouldThrow(); |
296 |
dl |
1.8 |
} |
297 |
jsr166 |
1.20 |
catch (BrokenBarrierException ok) {} |
298 |
|
|
catch (InterruptedException ok) {} |
299 |
|
|
}}}); |
300 |
jsr166 |
1.9 |
|
301 |
jsr166 |
1.14 |
for (int i = 0; i < 4; i++) { |
302 |
jsr166 |
1.20 |
delay(timeoutMillis()); |
303 |
dl |
1.8 |
t.interrupt(); |
304 |
|
|
} |
305 |
jsr166 |
1.14 |
done.set(true); |
306 |
|
|
t.interrupt(); |
307 |
jsr166 |
1.20 |
awaitTermination(t); |
308 |
dl |
1.8 |
} |
309 |
|
|
|
310 |
|
|
/** |
311 |
|
|
* Reset of a non-broken barrier does not break barrier |
312 |
|
|
*/ |
313 |
jsr166 |
1.14 |
public void testResetWithoutBreakage() throws Exception { |
314 |
|
|
final CyclicBarrier barrier = new CyclicBarrier(3); |
315 |
|
|
for (int i = 0; i < 3; i++) { |
316 |
jsr166 |
1.21 |
final CyclicBarrier start = new CyclicBarrier(3); |
317 |
|
|
Thread t1 = newStartedThread(new CheckedRunnable() { |
318 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
319 |
|
|
start.await(); |
320 |
|
|
barrier.await(); |
321 |
|
|
}}); |
322 |
|
|
|
323 |
jsr166 |
1.21 |
Thread t2 = newStartedThread(new CheckedRunnable() { |
324 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
325 |
|
|
start.await(); |
326 |
|
|
barrier.await(); |
327 |
|
|
}}); |
328 |
|
|
|
329 |
|
|
start.await(); |
330 |
|
|
barrier.await(); |
331 |
jsr166 |
1.21 |
awaitTermination(t1); |
332 |
|
|
awaitTermination(t2); |
333 |
jsr166 |
1.14 |
assertFalse(barrier.isBroken()); |
334 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
335 |
|
|
if (i == 1) barrier.reset(); |
336 |
|
|
assertFalse(barrier.isBroken()); |
337 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
338 |
dl |
1.8 |
} |
339 |
|
|
} |
340 |
jsr166 |
1.9 |
|
341 |
dl |
1.8 |
/** |
342 |
|
|
* Reset of a barrier after interruption reinitializes it. |
343 |
|
|
*/ |
344 |
jsr166 |
1.14 |
public void testResetAfterInterrupt() throws Exception { |
345 |
|
|
final CyclicBarrier barrier = new CyclicBarrier(3); |
346 |
|
|
for (int i = 0; i < 2; i++) { |
347 |
jsr166 |
1.21 |
final CyclicBarrier start = new CyclicBarrier(3); |
348 |
jsr166 |
1.14 |
Thread t1 = new ThreadShouldThrow(InterruptedException.class) { |
349 |
|
|
public void realRun() throws Exception { |
350 |
|
|
start.await(); |
351 |
|
|
barrier.await(); |
352 |
|
|
}}; |
353 |
|
|
|
354 |
|
|
Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
355 |
|
|
public void realRun() throws Exception { |
356 |
|
|
start.await(); |
357 |
|
|
barrier.await(); |
358 |
|
|
}}; |
359 |
|
|
|
360 |
|
|
t1.start(); |
361 |
|
|
t2.start(); |
362 |
|
|
start.await(); |
363 |
|
|
t1.interrupt(); |
364 |
jsr166 |
1.21 |
awaitTermination(t1); |
365 |
|
|
awaitTermination(t2); |
366 |
jsr166 |
1.14 |
assertTrue(barrier.isBroken()); |
367 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
368 |
|
|
barrier.reset(); |
369 |
|
|
assertFalse(barrier.isBroken()); |
370 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
371 |
dl |
1.8 |
} |
372 |
|
|
} |
373 |
jsr166 |
1.9 |
|
374 |
dl |
1.8 |
/** |
375 |
|
|
* Reset of a barrier after timeout reinitializes it. |
376 |
|
|
*/ |
377 |
jsr166 |
1.14 |
public void testResetAfterTimeout() throws Exception { |
378 |
|
|
final CyclicBarrier barrier = new CyclicBarrier(3); |
379 |
|
|
for (int i = 0; i < 2; i++) { |
380 |
jsr166 |
1.21 |
assertEquals(0, barrier.getNumberWaiting()); |
381 |
|
|
Thread t1 = newStartedThread(new CheckedRunnable() { |
382 |
|
|
public void realRun() throws Exception { |
383 |
|
|
try { |
384 |
|
|
barrier.await(); |
385 |
|
|
shouldThrow(); |
386 |
|
|
} catch (BrokenBarrierException success) {} |
387 |
|
|
}}); |
388 |
|
|
Thread t2 = newStartedThread(new CheckedRunnable() { |
389 |
jsr166 |
1.14 |
public void realRun() throws Exception { |
390 |
jsr166 |
1.21 |
while (barrier.getNumberWaiting() == 0) |
391 |
|
|
Thread.yield(); |
392 |
|
|
long startTime = System.nanoTime(); |
393 |
|
|
try { |
394 |
|
|
barrier.await(timeoutMillis(), MILLISECONDS); |
395 |
|
|
shouldThrow(); |
396 |
|
|
} catch (TimeoutException success) {} |
397 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
398 |
|
|
}}); |
399 |
jsr166 |
1.14 |
|
400 |
jsr166 |
1.21 |
awaitTermination(t1); |
401 |
|
|
awaitTermination(t2); |
402 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
403 |
jsr166 |
1.14 |
assertTrue(barrier.isBroken()); |
404 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
405 |
|
|
barrier.reset(); |
406 |
|
|
assertFalse(barrier.isBroken()); |
407 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
408 |
dl |
1.8 |
} |
409 |
|
|
} |
410 |
|
|
|
411 |
|
|
/** |
412 |
|
|
* Reset of a barrier after a failed command reinitializes it. |
413 |
|
|
*/ |
414 |
jsr166 |
1.14 |
public void testResetAfterCommandException() throws Exception { |
415 |
|
|
final CyclicBarrier barrier = |
416 |
|
|
new CyclicBarrier(3, new Runnable() { |
417 |
|
|
public void run() { |
418 |
|
|
throw new NullPointerException(); }}); |
419 |
|
|
for (int i = 0; i < 2; i++) { |
420 |
jsr166 |
1.21 |
final CyclicBarrier start = new CyclicBarrier(3); |
421 |
jsr166 |
1.14 |
Thread t1 = new ThreadShouldThrow(BrokenBarrierException.class) { |
422 |
|
|
public void realRun() throws Exception { |
423 |
|
|
start.await(); |
424 |
|
|
barrier.await(); |
425 |
|
|
}}; |
426 |
|
|
|
427 |
|
|
Thread t2 = new ThreadShouldThrow(BrokenBarrierException.class) { |
428 |
|
|
public void realRun() throws Exception { |
429 |
|
|
start.await(); |
430 |
|
|
barrier.await(); |
431 |
|
|
}}; |
432 |
|
|
|
433 |
|
|
t1.start(); |
434 |
|
|
t2.start(); |
435 |
|
|
start.await(); |
436 |
|
|
while (barrier.getNumberWaiting() < 2) { Thread.yield(); } |
437 |
|
|
try { |
438 |
|
|
barrier.await(); |
439 |
|
|
shouldThrow(); |
440 |
|
|
} catch (NullPointerException success) {} |
441 |
jsr166 |
1.21 |
awaitTermination(t1); |
442 |
|
|
awaitTermination(t2); |
443 |
jsr166 |
1.14 |
assertTrue(barrier.isBroken()); |
444 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
445 |
|
|
barrier.reset(); |
446 |
|
|
assertFalse(barrier.isBroken()); |
447 |
|
|
assertEquals(0, barrier.getNumberWaiting()); |
448 |
dl |
1.8 |
} |
449 |
|
|
} |
450 |
dl |
1.1 |
} |