Hello, I have followed the instructions in the provided example (from keycloak-examples-1.9.4.Final.zip). The steps I have done are: 1. ran mvn clean install 2. Copied event-listener-sysout-example.jar file from target to providers directory in keycloak 3. Registered provider in keycloak-server.json 4. Restarted the standalone server I am getting the error below now: 07:12:51,542 INFO [org.keycloak.services] (ServerService Thread Pool -- 55) KC-SERVICES0001: Loading config from /opt/jboss/keycloak/standalone/configuration/keycloak-server.json 07:12:51,946 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 55) 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.RuntimeException: org.jboss.modules.ModuleNotFoundException: org.keycloak.examples.event-sysout:main at org.keycloak.provider.wildfly.ModuleProviderLoaderFactory.create(ModuleProviderLoaderFactory.java:44) at org.keycloak.provider.ProviderManager.<init>(ProviderManager.java:56) at org.keycloak.services.DefaultKeycloakSessionFactory.init(DefaultKeycloakSessionFactory.java:71) at org.keycloak.services.resources.KeycloakApplication.createSessionFactory(KeycloakApplication.java:225) at org.keycloak.services.resources.KeycloakApplication.<init>(KeycloakApplication.java:77) 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 Caused by: org.jboss.modules.ModuleNotFoundException: org.keycloak.examples.event-sysout:main at org.jboss.modules.ModuleLoader.loadModule(ModuleLoader.java:223) at org.keycloak.provider.wildfly.ModuleProviderLoaderFactory.create(ModuleProviderLoaderFactory.java:40) ... 28 more 07:12:51,976 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.RuntimeException: org.jboss.modules.ModuleNotFoundException: org.keycloak.examples.event-sysout:main Caused by: org.jboss.modules.ModuleNotFoundException: org.keycloak.examples.event-sysout:main"}} Am I missing an unknown step? The readme file only mentions copying the jar file to providers. If not what could be wrong? Kind Regards, Sarp Kaya _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user