[1.5] intermittent exception using activate with play 2.2

[erich oliphant]

Hi i'm seeing this when I run my app on my server, but not when I run it locally.  I've tried few things like calling 'transactional{}' on the onStart() etc but that is inconsistent and doesn't seem to always help. Beyond that I was thinking that that might not be good if it conflicts with the action of the plugin

• Jun 19 06:36:39 ssprelaunch i-3a840e59: java.lang.ExceptionInInitializerError
• Jun 19 06:36:39 ssprelaunch i-3a840e59:  at com.soundscry.web.play.Global$$anonfun$onStart$2.apply$mcV$sp(Global.scala:121)
• Jun 19 06:36:39 ssprelaunch i-3a840e59:  at akka.actor.Scheduler$$anon$9.run(Scheduler.scala:80)
• Jun 19 06:36:39 ssprelaunch i-3a840e59:  at akka.actor.LightArrayRevolverScheduler$$anon$3$$anon$2.run(Scheduler.scala:241)
• Jun 19 06:36:39 ssprelaunch i-3a840e59:  at scala.concurrent.impl.ExecutionContextImpl$$anon$3.exec(ExecutionContextImpl.scala:107)
• Jun 19 06:36:39 ssprelaunch i-3a840e59:  at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
• Jun 19 06:36:39 ssprelaunch i-3a840e59:  at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
• Jun 19 06:36:39 ssprelaunch i-3a840e59:  at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
• Jun 19 06:36:39 ssprelaunch i-3a840e59:  at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
• Jun 19 06:36:39 ssprelaunch i-3a840e59: Caused by: java.lang.IllegalStateException: Can't find the entity 'id' property for class models.Player, probably the entity class was loaded before the persistence context. Try to add a 'transactional{}' call on the application startup to force the persistence context load.Please also make sure that there aren't instance variables or methods referencing entities inside the main class.

[Michał Jurczuk]

You have to first load your context in Scala and Play Framework you can do something like:

class ActivateStartPlugin(app: play.Application) extends Plugin {

  override def onStart = {
    models.appPersistenceContext.context
  }
}

And add this to play.plugins

100:net.fwbrasil.activate.play.ActivatePlayPlugin
110:utils.plugin.ActivateStartPlugin