NPE at gatling-2.0.0-RC3

gatling.log

17:39:00.605 [WARN ] i.g.h.a.AsyncHandlerActor - Request '/v1/jsevents' failed: java.lang.NullPointerException
[ERROR] [09/09/2014 17:39:00.642] [GatlingSystem-akka.actor.default-dispatcher-14] [akka://GatlingSystem/user/$h] null
java.io.IOException
        at com.ning.http.client.providers.netty.request.NettyRequestSender.sendRequestWithCachedChannel(NettyRequestSender.java:222)
        at com.ning.http.client.providers.netty.request.NettyRequestSender.sendRequestWithCertainForceConnect(NettyRequestSender.java:136)
        at com.ning.http.client.providers.netty.request.NettyRequestSender.sendRequest(NettyRequestSender.java:113)
        at com.ning.http.client.providers.netty.NettyAsyncHttpProvider.execute(NettyAsyncHttpProvider.java:86)
        at com.ning.http.client.AsyncHttpClient.executeRequest(AsyncHttpClient.java:491)
        at io.gatling.http.ahc.HttpEngine.startHttpTransaction(HttpEngine.scala:249)
        at io.gatling.http.action.HttpRequestAction$.startHttpTransaction$1(HttpRequestAction.scala:38)
        at io.gatling.http.action.HttpRequestAction$.startHttpTransaction(HttpRequestAction.scala:48)
        at io.gatling.http.action.HttpRequestAction$$anonfun$sendRequest$1.apply(HttpRequestAction.scala:95)
        at io.gatling.http.action.HttpRequestAction$$anonfun$sendRequest$1.apply(HttpRequestAction.scala:87)
        at io.gatling.core.validation.Success.map(Validation.scala:32)
        at io.gatling.http.action.HttpRequestAction.sendRequest(HttpRequestAction.scala:87)
        at io.gatling.http.action.RequestAction$$anonfun$executeOrFail$1.apply(RequestAction.scala:41)
        at io.gatling.http.action.RequestAction$$anonfun$executeOrFail$1.apply(RequestAction.scala:39)
        at io.gatling.core.validation.Success.flatMap(Validation.scala:33)
        at io.gatling.http.action.RequestAction.executeOrFail(RequestAction.scala:39)
        at io.gatling.core.action.Failable$class.execute(Actions.scala:71)
        at io.gatling.http.action.RequestAction.execute(RequestAction.scala:33)
        at io.gatling.core.action.Action$$anonfun$receive$1.applyOrElse(Actions.scala:29)
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:166)
        at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
        at io.gatling.core.akka.BaseActor.aroundReceive(BaseActor.scala:23)
        at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
        at akka.actor.ActorCell.invoke(ActorCell.scala:487)
        at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
        at akka.dispatch.Mailbox.run(Mailbox.scala:220)
        at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393)
        at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
        at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
        at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
        at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
 Caused by: java.lang.NullPointerException
        at com.ning.http.client.providers.netty.request.timeout.TimeoutTimerTask.<init>(TimeoutTimerTask.java:40)
        at com.ning.http.client.providers.netty.request.timeout.RequestTimeoutTimerTask.<init>(RequestTimeoutTimerTask.java:31)
        at com.ning.http.client.providers.netty.request.NettyRequestSender.scheduleTimeouts(NettyRequestSender.java:377)
        at com.ning.http.client.providers.netty.request.NettyRequestSender.writeRequest(NettyRequestSender.java:339)
        at com.ning.http.client.providers.netty.request.NettyRequestSender.sendRequestWithCachedChannel(NettyRequestSender.java:210)
        ... 30 more