Hi, I am following <Akka in Action> book and cloned code from https://github.com/RayRoestenburg/akka-in-action
when executing `sbt assembly` it appeared error as following: 23:09:59.383 [ConsumerTest-akka.actor.default-dispatcher-7] DEBUG o.a.camel.impl.DefaultCamelContext - Warming up route id: akka://ConsumerTest/user/$d having autoStartup=true 23:09:59.383 [ConsumerTest-akka.actor.default-dispatcher-7] DEBUG org.apache.camel.impl.RouteService - Starting services on route: akka://ConsumerTest/user/$d Uncaught error from thread [ConsumerTest-akka.actor.default-dispatcher-7] shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[ConsumerTest] java.lang.NoClassDefFoundError: org/apache/commons/pool/ObjectPoolFactory at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) at java.lang.Class.getConstructor0(Class.java:3075) at java.lang.Class.getConstructor(Class.java:1825) at org.apache.activemq.camel.component.ActiveMQConfiguration.createPooledConnectionFactory(ActiveMQConfiguration.java:180) at org.apache.activemq.camel.component.ActiveMQConfiguration.createConnectionFactory(ActiveMQConfiguration.java:164) at org.apache.camel.component.jms.JmsConfiguration.getConnectionFactory(JmsConfiguration.java:521) at org.apache.camel.component.jms.JmsConfiguration.createListenerConnectionFactory(JmsConfiguration.java:1181) at org.apache.camel.component.jms.JmsConfiguration.getListenerConnectionFactory(JmsConfiguration.java:540) at org.apache.camel.component.jms.JmsConfiguration.configureMessageListenerContainer(JmsConfiguration.java:996) at org.apache.camel.component.jms.JmsConfiguration.createMessageListenerContainer(JmsConfiguration.java:512) at org.apache.camel.component.jms.JmsEndpoint.createConsumer(JmsEndpoint.java:137) at org.apache.camel.component.jms.JmsEndpoint.createConsumer(JmsEndpoint.java:56) at org.apache.camel.impl.EventDrivenConsumerRoute.addServices(EventDrivenConsumerRoute.java:65) at org.apache.camel.impl.DefaultRoute.onStartingServices(DefaultRoute.java:80) at org.apache.camel.impl.RouteService.warmUp(RouteService.java:134) at org.apache.camel.impl.DefaultCamelContext.doWarmUpRoutes(DefaultCamelContext.java:2304) at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:2234) at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:2256) at org.apache.camel.impl.DefaultCamelContext.startRouteService(DefaultCamelContext.java:2133) at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:794) at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:2109) at org.apache.camel.impl.DefaultCamelContext.addRouteDefinitions(DefaultCamelContext.java:726) at org.apache.camel.builder.RouteBuilder.populateRoutes(RouteBuilder.java:337) at org.apache.camel.builder.RouteBuilder.addRoutesToCamelContext(RouteBuilder.java:264) at org.apache.camel.impl.DefaultCamelContext.addRoutes(DefaultCamelContext.java:688) at akka.camel.internal.ConsumerRegistrar$$anonfun$receive$4.applyOrElse(CamelSupervisor.scala:200) at akka.actor.Actor$class.aroundReceive(Actor.scala:484) at akka.camel.internal.ConsumerRegistrar.aroundReceive(CamelSupervisor.scala:195) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526) at akka.actor.ActorCell.invoke(ActorCell.scala:495) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257) at akka.dispatch.Mailbox.run(Mailbox.scala:224) at akka.dispatch.Mailbox.exec(Mailbox.scala:234) 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.ClassNotFoundException: org.apache.commons.pool.ObjectPoolFactory at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 38 more 23:09:59.430 [ConsumerTest-akka.actor.default-dispatcher-4] ERROR akka.actor.ActorSystemImpl - Uncaught error from thread [ConsumerTest-akka.actor.default-dispatcher-7] shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled and I also add the dependence for commons pool lib in build.sbt (in root directory) // https://mvnrepository.com/artifact/commons-pool/commons-pool libraryDependencies += "commons-pool" % "commons-pool" % "1.3" so, what should I do? -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. 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