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  1. ,

    You are not deploying the oracle driver with the application. Place the driver jars in a shared or library extension folder of your application server. (You should go with option one or two though

  2. ,
    via netty.io by Unknown author

    Needs to add netty-transport-native-epoll with a OS classifier to the classpath, it's not included in netty-all

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via Google Groups by Unknown author, 1 year ago
java.lang.ClassNotFoundException: kamon.metric.Metrics at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at akka.actor.ReflectiveDynamicAccess$$anonfun$getClassFor$1.apply(DynamicAccess.scala:67) at akka.actor.ReflectiveDynamicAccess$$anonfun$getClassFor$1.apply(DynamicAccess.scala:66) at scala.util.Try$.apply(Try.scala:191) at akka.actor.ReflectiveDynamicAccess.getClassFor(DynamicAccess.scala:66) at akka.actor.ReflectiveDynamicAccess.createInstanceFor(DynamicAccess.scala:84) at akka.actor.ActorSystemImpl$$anonfun$loadExtensions$1$$anonfun$1.applyOrElse(ActorSystem.scala:780) at akka.actor.ActorSystemImpl$$anonfun$loadExtensions$1$$anonfun$1.applyOrElse(ActorSystem.scala:780) at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36) at scala.util.Failure.recoverWith(Try.scala:202) at akka.actor.ActorSystemImpl$$anonfun$loadExtensions$1.apply(ActorSystem.scala:780) at akka.actor.ActorSystemImpl$$anonfun$loadExtensions$1.apply(ActorSystem.scala:779) at scala.collection.Iterator$class.foreach(Iterator.scala:750) at scala.collection.AbstractIterator.foreach(Iterator.scala:1202) at scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at scala.collection.AbstractIterable.foreach(Iterable.scala:54) at akka.actor.ActorSystemImpl.loadExtensions(ActorSystem.scala:779) at akka.actor.ActorSystemImpl.liftedTree2$1(ActorSystem.scala:667) at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:660) at akka.actor.ActorSystemImpl._start(ActorSystem.scala:660) at akka.actor.ActorSystemImpl.start(ActorSystem.scala:676) at akka.actor.ActorSystem$.apply(ActorSystem.scala:143) at akka.actor.ActorSystem$.apply(ActorSystem.scala:127) at play.api.libs.concurrent.ActorSystemProvider$.start(Akka.scala:291) at play.api.libs.concurrent.ActorSystemProvider.get$lzycompute(Akka.scala:256) at play.api.libs.concurrent.ActorSystemProvider.get(Akka.scala:255) at play.api.libs.concurrent.ActorSystemProvider.get(Akka.scala:251) at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81) at com.google.inject.internal.BoundProviderFactory.provision(BoundProviderFactory.java:72) at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61) at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:62) at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38) at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62) at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:104) at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:85) at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:267) at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103) at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145) at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41) at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:56) at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016) at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092) at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012) at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051) at play.api.inject.guice.GuiceInjector.instanceOf(GuiceInjectorBuilder.scala:321) at play.api.inject.guice.GuiceInjector.instanceOf(GuiceInjectorBuilder.scala:316) at play.api.inject.guice.GuiceApplicationBuilder.build(GuiceApplicationBuilder.scala:93) at play.api.inject.guice.GuiceApplicationLoader.load(GuiceApplicationLoader.scala:21) at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1$$anonfun$2.apply(DevServerStart.scala:153) at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1$$anonfun$2.apply(DevServerStart.scala:150) at play.utils.Threads$.withContextClassLoader(Threads.scala:21) at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:150) at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:121) at scala.Option.map(Option.scala:146) at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1.apply(DevServerStart.scala:121) at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1.apply(DevServerStart.scala:119) at scala.util.Success.flatMap(Try.scala:230) at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:119) at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:111) at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402) at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689) at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)