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future java get

Future.get(timeout)在给定超时后不能可靠地抛出TimeoutException。这是正常的行为还是可以做些什么来使这个更可靠?此测试在我的机器上失败。但是,如果我睡觉3000而不是2000,它会通过。

public class FutureTimeoutTest {

@Test

public void test() throws

ExecutionException,

InterruptedException {

ExecutorService exec = Executors.newSingleThreadExecutor();

final Callable call = new Callable() {

@Override

public Object call() throws Exception {

try {

Thread.sleep(2000);

} catch (InterruptedException ex) {

ex.printStackTrace();

}

return 0;

}

};

final Future future = exec.submit(call);

try {

future.get(1000, TimeUnit.MILLISECONDS);

fail("expected TimeoutException");

} catch (TimeoutException ignore) {

}

}

}

本文标签: future java get