Re: [keycloak-user] Uncaught server error: java.lang.NoClassDefFoundError: org/keycloak/services/validation/Validation

Hi Experts, When I follow https://www.keycloak.org/docs/latest/server_development/index.html#packag... step by step to do customize the validation in keycloak. After I throw my jar into standalone/deployment, it creates a deployed file and the log shows the jar is deployed. I can found my execution in keycloak admin console which shows in the screen shot below. But when it comes to register page, after I click register button with my filled content I got exception in keycloak log file. I also checked `standalone.xml` and `jboss-deployment-structure.xml` which seems fine too which means it include "keycloak-services-4.7.0.Final.jar". I don't find any useful information in the search. So could anyone help to have a look please? Keycloak version: compile group: 'org.keycloak', name: 'keycloak-core', version: '4.7.0.Final' compile group: 'org.keycloak', name: 'keycloak-server-spi', version: '4.7.0.Final' compile group: 'org.keycloak', name: 'keycloak-server-spi-private', version: '4.7.0.Final' compile group: 'org.keycloak', name: 'keycloak-services', version: '4.7.0.Final' [Screen Shot] [cid:image003.jpg@01D53D9A.DBB94DF0] [Exception] 09:04:01,128 ERROR [org.keycloak.services.error.KeycloakErrorHandler] (default task-35) Uncaught server error: java.lang.NoClassDefFoundError: org/keycloak/services/validation/Validation at com.xxxxxx.registerformcustom.validate(registerformcustom.java:51) at org.keycloak.authentication.FormAuthenticationFlow.processAction(FormAuthenticationFlow.java:214) at org.keycloak.authentication.DefaultAuthenticationFlow.processAction(DefaultAuthenticationFlow.java:97) at org.keycloak.authentication.AuthenticationProcessor.authenticationAction(AuthenticationProcessor.java:873) at org.keycloak.services.resources.LoginActionsService.processFlow(LoginActionsService.java:292) at org.keycloak.services.resources.LoginActionsService.processRegistration(LoginActionsService.java:627) at org.keycloak.services.resources.LoginActionsService.registerRequest(LoginActionsService.java:681) at org.keycloak.services.resources.LoginActionsService.processRegister(LoginActionsService.java:661) at sun.reflect.GeneratedMethodAccessor1030.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Delegati _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user