OnJava8-Examples/threads/MoreTasksAfterShutdown.java

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2016-07-05 14:46:09 -06:00
// threads/MoreTasksAfterShutdown.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
import java.util.concurrent.*;
public class MoreTasksAfterShutdown {
public static void main(String[] args)
throws InterruptedException {
ExecutorService exec =
Executors.newSingleThreadExecutor();
exec.execute(new SleepAndPrintTask(1));
exec.shutdown();
try {
exec.execute(new SleepAndPrintTask(99));
} catch(RejectedExecutionException e) {
System.out.println(e);
}
exec.awaitTermination(5, TimeUnit.SECONDS);
}
}
/* Output:
java.util.concurrent.RejectedExecutionException:
Task SleepAndPrintTask[99] rejected from
java.util.concurrent.ThreadPoolExecutor@25154f[
Shutting down, pool size = 1, active threads = 1,
queued tasks = 0, completed tasks = 0]
SleepAndPrintTask[1] pool-1-thread-1
*/