playframework 2.0 - Play 2.4 java.lang.RuntimeException: There is no HTTP Context available from here -

i have application. on application start wake akka actor every 24 second. actor iterates through entities within jpa.withtransaction, job , sends email users.

the problem within jpa.withtransaction method when calling render method (using render scala template) runtime exception thrown: there no htto context available here

    [error] - akka.actor.oneforonestrategy - jpa transaction failed 11:50:42 worker.1   |  java.lang.runtimeexception: jpa transaction failed 11:50:42 worker.1   |   @ play.db.jpa.defaultjpaapi.withtransaction(defaultjpaapi.java:107) ~[play-java-jpa_2.11-2.4.6.jar:2.4.6] 11:50:42 worker.1   |   @ play.db.jpa.jpa.withtransaction(jpa.java:148) ~[play-java-jpa_2.11-2.4.6.jar:2.4.6] 11:50:42 worker.1   |   @ utils.medicalvalidityactor.onreceive(medicalvalidityactor.java:35) ~[classes/:na] 11:50:42 worker.1   |   @ akka.actor.untypedactor$$anonfun$receive$1.applyorelse(untypedactor.scala:167) ~[akka-actor_2.11-2.3.13.jar:na] 11:50:42 worker.1   |   @ akka.actor.actor$class.aroundreceive(actor.scala:467) ~[akka-actor_2.11-2.3.13.jar:na] 11:50:42 worker.1   |   @ akka.actor.untypedactor.aroundreceive(untypedactor.scala:97) ~[akka-actor_2.11-2.3.13.jar:na] 11:50:42 worker.1   |   @ akka.actor.actorcell.receivemessage(actorcell.scala:516) [akka-actor_2.11-2.3.13.jar:na] 11:50:42 worker.1   |   @ akka.actor.actorcell.invoke(actorcell.scala:487) [akka-actor_2.11-2.3.13.jar:na] 11:50:42 worker.1   |   @ akka.dispatch.mailbox.processmailbox(mailbox.scala:238) [akka-actor_2.11-2.3.13.jar:na] 11:50:42 worker.1   |   @ akka.dispatch.mailbox.run(mailbox.scala:220) [akka-actor_2.11-2.3.13.jar:na] 11:50:42 worker.1   |   @ akka.dispatch.forkjoinexecutorconfigurator$akkaforkjointask.exec(abstractdispatcher.scala:397) [akka-actor_2.11-2.3.13.jar:na] 11:50:42 worker.1   |   @ scala.concurrent.forkjoin.forkjointask.doexec(forkjointask.java:260) [scala-library-2.11.6.jar:na] 11:50:42 worker.1   |   @ scala.concurrent.forkjoin.forkjoinpool$workqueue.runtask(forkjoinpool.java:1339) [scala-library-2.11.6.jar:na] 11:50:42 worker.1   |   @ scala.concurrent.forkjoin.forkjoinpool.runworker(forkjoinpool.java:1979) [scala-library-2.11.6.jar:na] 11:50:42 worker.1   |   @ scala.concurrent.forkjoin.forkjoinworkerthread.run(forkjoinworkerthread.java:107) [scala-library-2.11.6.jar:na] 11:50:42 worker.1   |  caused by: java.lang.runtimeexception: there no http context available here. 11:50:42 worker.1   |   @ play.mvc.http$context.current(http.java:57) ~[play_2.11-2.4.6.jar:2.4.6] 11:50:42 worker.1   |   @ play.mvc.http$context$implicit.ctx(http.java:308) ~[play_2.11-2.4.6.jar:2.4.6] 11:50:42 worker.1   |   @ play.core.j.playmagicforjava$.requestheader(templatemagicforjava.scala:58) ~[play-java_2.11-2.4.6.jar:2.4.6] 11:50:42 worker.1   |   @ views.html.emailtemplatemedicalvalidity_scope0$emailtemplatemedicalvalidity.apply(emailtemplatemedicalvalidity.template.scala:77) ~[classes/:na] 11:50:42 worker.1   |   @ views.html.emailtemplatemedicalvalidity_scope0$emailtemplatemedicalvalidity.render(emailtemplatemedicalvalidity.template.scala:113) ~[classes/:na] 11:50:42 worker.1   |   @ views.html.emailtemplatemedicalvalidity.render(emailtemplatemedicalvalidity.template.scala) ~[classes/:na] 11:50:42 worker.1   |   @ utils.medicalvalidityactor$1.invoke(medicalvalidityactor.java:97) ~[classes/:na] 11:50:42 worker.1   |   @ play.db.jpa.defaultjpaapi.lambda$withtransaction$1(defaultjpaapi.java:103) ~[play-java-jpa_2.11-2.4.6.jar:2.4.6] 11:50:42 worker.1   |   @ play.db.jpa.defaultjpaapi.withtransaction(defaultjpaapi.java:136) ~[play-java-jpa_2.11-2.4.6.jar:2.4.6] 11:50:42 worker.1   |   @ play.db.jpa.defaultjpaapi.withtransaction(defaultjpaapi.java:102) ~[play-java-jpa_2.11-2.4.6.jar:2.4.6] 11:50:42 worker.1   |   ... 14 common frames omitted 

this code:

public class medicalvalidityactor extends untypedactor {      @inject     httpexecutioncontext ec;      @transactional     public void onreceive(object message) {         if (message instanceof checkmedicalvalidity) {             // start              jpa.withtransaction(new play.libs.f.callback0() {                 @override                 public void invoke() throws throwable {                     //get today , add 1 month                     date todayplusmonth = new date();                     todayplusmonth = dateutils.addmonths(todayplusmonth, 1);                      list<organization> organizationlist = organization.findall();                      for(organization organization : organizationlist){                         list<player> playerlist =  playermanager.findallactivedomesticplayersbyorganization(organization);                          // list containing players specific organization have invalid medical                         arraylist<player> playersinvalidmedical = new arraylist<>();                          for(player player : playerlist){                              system.out.println(organization.getname() + " " +  player.getfirstname() + " " + player.getlastname() + " " + player.getmedicalvalidityformatted());                              if(player.getmedicalvalidity() != null && !player.ismedicalvalid()) {                                  // medical not valid anymore                                 playersinvalidmedical.add(player);                              } else if(player.getmedicalvalidity() != null && todayplusmonth.after(player.getmedicalvalidity())) {                                  // medical not valid anymore                                 playersinvalidmedical.add(player);                                  player.setmedicalvalid(false);                             }                         }                          // send notification users medical validity                          if(!playersinvalidmedical.isempty()) {                              system.out.println("potekli:  " + playersinvalidmedical.size());                              // recipients organization                             list<enduser> endusers = endusermanager.findbyorganization(organization);                              arraylist<string> recipients = new arraylist<>();                              for(enduser enduser : endusers){                                 if(enduser.getroles().get(0).getname().equals(securityrole.administrator) ||                                         enduser.getroles().get(0).getname().equals(securityrole.secretary) ||                                         enduser.getroles().get(0).getname().equals(securityrole.coach) ||                                         enduser.getroles().get(0).getname().equals(securityrole.head)) {                                      // add recipients                                     recipients.add(enduser.getemail());                                 }                             }                              system.out.println("1");                              // initialize not initialized every iteration                             emailutilsmailgun mailgunutils = new emailutilsmailgun();                              system.out.println("2");                             string emailtemplate = emailtemplatemedicalvalidity.render(organization, playersinvalidmedical).tostring();                              system.out.println("3");                              mailgunutils.sendemailtowithoutattachmenet(emailtemplate, organization.getname(), organization.getemail(),                                     "potekli zdravniški pregledi", recipients);                              system.out.println("4");                          }                     }                  }             });         }     }  }