Hi everyone I am writing an Keycloak SPI that will modify clients based on events. Therefore I use the EventListenerProvider. In the SPI code, that is written in Scala, I am using the Akka library for certain tasks. Unfortunately I get an ClassNotFoundException for the class akka.event.DefaultLoggingFilter when I run Keycloak with the spi. I've built an spi before, that is not using Akka and it worked. The class is available inside the spi .jar-file. I found a ticket on Keycloak's Jira Board (https://issues.jboss.org/browse/KEYCLOAK-4738) and updated to Keycloak version 3.1.0.Final, that contains the fix for this ticket - didn't help. Here is the full error message I get: 09:47:49,003 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool > -- 52) MSC000001: Failed to start service > jboss.undertow.deployment.default-server.default-host./auth: > org.jboss.msc.service.StartException in service > jboss.undertow.deployment.default-server.default-host./auth: > java.lang.RuntimeException: RESTEASY003325: Failed to construct public > org.keycloak.services.resources.KeycloakApplication( javax.servlet.ServletContext,org.jboss.resteasy.core.Dispatcher) > at > org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1. run(UndertowDeploymentService.java:85) > at java.util.concurrent.Executors$RunnableAdapter. call(Executors.java:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > at org.jboss.threads.JBossThread.run(JBossThread.java:320) > Caused by: java.lang.RuntimeException: RESTEASY003325: Failed to construct > public > org.keycloak.services.resources.KeycloakApplication( javax.servlet.ServletContext,org.jboss.resteasy.core.Dispatcher) > at > org.jboss.resteasy.core.ConstructorInjectorImpl.construct( ConstructorInjectorImpl.java:162) > at > org.jboss.resteasy.spi.ResteasyProviderFactory.createProviderInstance( ResteasyProviderFactory.java:2209) > at > org.jboss.resteasy.spi.ResteasyDeployment.createApplication( ResteasyDeployment.java:299) > at > org.jboss.resteasy.spi.ResteasyDeployment.start( ResteasyDeployment.java:240) > at > org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher. init(ServletContainerDispatcher.java:113) > at > org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init( HttpServletDispatcher.java:36) > at > io.undertow.servlet.core.LifecyleInterceptorInvocation.proceed( LifecyleInterceptorInvocation.java:117) > at > org.wildfly.extension.undertow.security.RunAsLifecycleInterceptor.init( RunAsLifecycleInterceptor.java:78) > at > io.undertow.servlet.core.LifecyleInterceptorInvocation.proceed( LifecyleInterceptorInvocation.java:103) > at > io.undertow.servlet.core.ManagedServlet$DefaultInstanceStrategy.start( ManagedServlet.java:231) > at > io.undertow.servlet.core.ManagedServlet.createServlet( ManagedServlet.java:132) > at > io.undertow.servlet.core.DeploymentManagerImpl.start( DeploymentManagerImpl.java:526) > at > org.wildfly.extension.undertow.deployment.UndertowDeploymentService. startContext(UndertowDeploymentService.java:101) > at > org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1. run(UndertowDeploymentService.java:82) > ... 6 more > Caused by: java.lang.ClassNotFoundException: > akka.event.DefaultLoggingFilter from [Module > "deployment.keycloak-server.war:main" from Service Module Loader] > at > org.jboss.modules.ModuleClassLoader.findClass( ModuleClassLoader.java:198) > at > org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked( ConcurrentClassLoader.java:363) > at > org.jboss.modules.ConcurrentClassLoader.performLoadClass( ConcurrentClassLoader.java:351) > at > org.jboss.modules.ConcurrentClassLoader.loadClass( ConcurrentClassLoader.java:93) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:348) > at > akka.actor.ReflectiveDynamicAccess.$anonfun$getClassFor$1( ReflectiveDynamicAccess.scala:21) > at scala.util.Try$.apply(Try.scala:209) > at > akka.actor.ReflectiveDynamicAccess.getClassFor( ReflectiveDynamicAccess.scala:20) > at > akka.actor.ReflectiveDynamicAccess.createInstanceFor( ReflectiveDynamicAccess.scala:38) > at akka.actor.ActorSystemImpl.<init>(ActorSystem.scala:758) > at akka.actor.ActorSystem$.apply(ActorSystem.scala:245) > at akka.actor.ActorSystem$.apply(ActorSystem.scala:288) > at akka.actor.ActorSystem$.apply(ActorSystem.scala:263) > at > some.package.keycloak.keycloak.REST.KeycloakAdminClient.<init>( REST.scala:592) > at > some.package.keycloak.keycloak.KeycloakConfigurator. <init>(KeycloakConfigurator.scala:21) > at > some.package.keycloak.MyEventListenerProviderFactory .init(MyEventListenerProvider.scala:50) > at > org.keycloak.services.DefaultKeycloakSessionFactory.loadFactories( DefaultKeycloakSessionFactory.java:209) > at > org.keycloak.services.DefaultKeycloakSessionFactory.init( DefaultKeycloakSessionFactory.java:76) > at > org.keycloak.services.resources.KeycloakApplication. createSessionFactory(KeycloakApplication.java:313) > at > org.keycloak.services.resources.KeycloakApplication. <init>(KeycloakApplication.java:110) > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance( NativeConstructorAccessorImpl.java:62) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance( DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:423) > at > org.jboss.resteasy.core.ConstructorInjectorImpl.construct( ConstructorInjectorImpl.java:150) > ... 19 more > 09:47:49,010 ERROR [org.jboss.as.controller.management-operation] > (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: > ([("deployment" => "keycloak-server.war")]) - failure description: > {"WFLYCTL0080: Failed services" => > {"jboss.undertow.deployment.default-server.default-host./auth" => > "org.jboss.msc.service.StartException in service > jboss.undertow.deployment.default-server.default-host./auth: > java.lang.RuntimeException: RESTEASY003325: Failed to construct public > org.keycloak.services.resources.KeycloakApplication( javax.servlet.ServletContext,org.jboss.resteasy.core.Dispatcher) > Caused by: java.lang.RuntimeException: RESTEASY003325: Failed to > construct public > org.keycloak.services.resources.KeycloakApplication( javax.servlet.ServletContext,org.jboss.resteasy.core.Dispatcher) > Caused by: java.lang.ClassNotFoundException: > akka.event.DefaultLoggingFilter from [Module > \"deployment.keycloak-server.war:main\" from Service Module Loader]"}} Do you guys have an idea what can cause this error and how to solve it? Thank you for your help and Best Regards Jonas _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user