Console scala app doesn't stop when using reactive mongo driver -

i'm playing mongo database through reactive mongo driver

import org.slf4j.loggerfactory  import reactivemongo.api.mongodriver import reactivemongo.api.collections.default.bsoncollection import reactivemongo.bson.bsondocument  import scala.concurrent.future import scala.concurrent.duration._ import scala.concurrent.executioncontext.implicits.global  object main {    val log = loggerfactory.getlogger("main")    def main(args: array[string]): unit = {      log.info("start")      val conn = new mongodriver().connection(list("localhost"))     val db = conn("test")      log.info("done")    } } 

my build.sbt file:

lazy val root = (project in file(".")).   settings(     name := "simpleapp",     version := "1.0.0",     scalaversion := "2.11.4",     librarydependencies ++= seq(       "org.reactivemongo" %% "reactivemongo" % "0.10.5.0.akka23",       "ch.qos.logback" % "logback-classic" % "1.1.2"     )   ) 

when run: sbt compile run

i output:

$ sbt compile run [success] total time: 0 s, completed apr 25, 2015 5:36:51 pm [info] running main  error statuslogger no log4j2 configuration file found. using default configuration: logging errors console. 17:36:52.328 [run-main-0] info  main - start 17:36:52.333 [run-main-0] info  main - done 

and application doesn't stop.... :/

i have press ctrl + c kill it

i've read mongodriver() creates actorsystem tried close connection manually conn.close() this:

[info] running main  error statuslogger no log4j2 configuration file found. using default configuration: logging errors console. 17:42:23.252 [run-main-0] info  main - start 17:42:23.258 [run-main-0] info  main - done 17:42:23.403 [reactivemongo-akka.actor.default-dispatcher-2] error reactivemongo.core.actors.mongodbsystem - (state: closing) unhandled message: channelconnected(-973180998) [info] [04/25/2015 17:42:23.413] [reactivemongo-akka.actor.default-dispatcher-3] [akka://reactivemongo/deadletters] message [reactivemongo.core.actors.closed$] actor[akka://reactivemongo/user/$b#-1700211063] actor[akka://reactivemongo/deadletters] not delivered. [1] dead letters encountered. logging can turned off or adjusted configuration settings 'akka.log-dead-letters' , 'akka.log-dead-letters-during-shutdown'. [info] [04/25/2015 17:42:23.414] [reactivemongo-akka.actor.default-dispatcher-3] [akka://reactivemongo/user/$a] message [reactivemongo.core.actors.close$] actor[akka://reactivemongo/user/$b#-1700211063] actor[akka://reactivemongo/user/$a#-1418324178] not delivered. [2] dead letters encountered. logging can turned off or adjusted configuration settings 'akka.log-dead-letters' , 'akka.log-dead-letters-during-shutdown'.  

and app doesn't exit also

so, doing wrong? can'f find answer...

and seems me official docs doesn't explain whether should care graceful shutdown @ all.

i don't have experience console apps, use play framework in projects want create sub-project works mongodb

i see many templates (in activator) such as: play + reactive mongo, play + akka + mongo there's no scala + reactive mongo explain how work :/

this looks known issue reactive mongo, see relevant thread on github

a fix introduced in pull request #241 reid-spencer, merged on 3rd of february 2015

you should able fix using newer version. if no release has been made since february, try checking out version includes fix , building code yourself.

as far can see, there's no mention of bugfix in release notes version 0.10.5

3. bugfixes:
   • bson library: fix bsondatetimenumberlike typeclass
   • cursor: fix exception propagation
   • commands: fix ok deserialization cases
   • commands: fix collstatsresult
   • commands: fix addtoset in aggregation
   • core: fix connection leak in cases
   • genericcollection: not ignore writeconcern in save()
   • genericcollection: not ignore writeconcern in bulk inserts
   • gridfs: fix uploaddate deserialization field
   • indexes: fix parsing ascending , descending
   • macros: fix type aliases
   • macros: allow custom annotations

the name of committer not appear well:

here list of commits included in release (since 0.9, top commit recent one):

$ git shortlog -s -n refs/tags/v0.10.0..0.10.5.x.akka23 39  stephane godbillon  5  andrey neverov  4  lucasrpb  3  faissal boutaounte  2  杨博 (yang bo)  2  nikolay sokolov  1  david liman  1  maksim gurtovenko  1  age mooij  1  paulo "jcranky" siqueira  1  daniel armak  1  viktor taranenko  1  vincent debergue  1  andrea lattuada  1  pavel.glushchenko  1  jacek laskowski 

looking @ commit history 0.10.5.0.akka23 (the 1 reference in build.sbt), seems fix not merged it.