CODEWITHSUNDEEP
javajakarta-eeasynchronoustimeoutejb
Nick Russler
Nick Russler

Reputation: 4688

Does @Asynchronous have a Timeout

When i call a Method like this:

@Asynchronous
public void cantstopme() {
  for(;;);
}

Would it run forever or would the Application Server kill it after a certain time?

Upvotes: 4

Views: 3388

Answers (2)

Eduardo Sanchez-Ros
Eduardo Sanchez-Ros

Reputation: 1827

Every time a method annotated @Asynchronous is invoked by anyone it will immediately return regardless of how long the method actually takes.

Each invocation should return a Future object that essentially starts out empty and will later have its value filled in by the container when the related method call actually completes.

For example: 

@Asynchronous
public Future<String> cantstopme() {

}

and then call it this way:

final Future<String> request = cantstopme();

And later you could ask for the result using the Future.get() method with a specific timeout, i.e: 

request.get(10, TimeUnit.SECONDS);

Upvotes: 5

Evgeniy Dorofeev
Evgeniy Dorofeev

Reputation: 135992

This code will run forever. AS or standalone app, Java has no legal means to interrupt a thread if the running code is not designed to be interrupted.

Upvotes: 3

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