Never is an awfully long time :-) If you wait about 60 seconds, the
command you gave calling (future 1) does terminate, at least on Mac OS X
10.8.5 where I tested it, and I have seen the same behavior on Linux and I
think Windows.
This version terminates much more quickly:
java -jar clojure-1.6.0.jar -e "(future 1) (shutdown-agents)"
There is some discussion of this issue at the ClojureDocs page for the
function 'future', including that this issue affects pmap and
clojure.java.shell/sh, too, because are both implemented using futures:
http://clojuredocs.org/clojure_core/clojure.core/future
It also includes a link to a Clojure ticket suggesting that this behavior
change. You can vote on it if you like (requires a Clojure JIRA account,
which you can create by clicking on the "Log In" link near the top right of
the page):
http://dev.clojure.org/jira/browse/CLJ-124
Andy
On Wed, Jul 30, 2014 at 12:33 PM, Serzh Nechyporchuk <nechyporc...@gmail.com
> wrote:
> Hello. I have a problems using code with futures. For example, if I run
> following code:
>
> java -jar clojure-1.6.0.jar -e "(println 1)"
>
> the process prints 1 and terminates.
> But when I'm trying to run code with futures:
>
> java -jar clojure-1.6.0.jar -e "(future 1)"
>
> the process doesn't terminates.
>
> This has real implication when I run some task using
>
> lein run -m some-ns/fun args
>
> If code above uses futures then this process will not terminate. This is
> really frustrating.
>
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