[concurrency-interest] j.u.c.Phaser tutorial?

Ashwin Jayaprakash ashwin.jayaprakash at gmail.com
Sun Jul 31 15:41:03 EDT 2011

Victor, thanks for telling me about your animated framework (

It was useful. I learned later that the arriveAndDeregister() method makes
sense only when you create a hierarchy of phasers which you have not
illustrated - so it looks just like arrive().

Still, nice work!

Off topic - about "Animated concurrent":
Another pointer - the UI for Executors is confusing. All the screens have a
"threadcount" spinner which is not very intuitive for showing
singleThreadedExecutor, cached.. etc. Is that for submitting threads or
pooled threads?

On Fri, Jul 29, 2011 at 10:29 AM, Ashwin Jayaprakash <
ashwin.jayaprakash at gmail.com> wrote:

> Is there a simpler/easier tutorial that explains the Phaser introduced in
> Java 7? Yes, I did read the Javadoc example (
> http://download.oracle.com/javase/7/docs/api/java/util/concurrent/Phaser.html)
> but I didn't quite follow it.
> Thanks,
> Ashwin.
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