[keycloak-user] Use keycloak classes from a custom Authenticator: NoClassDefFoundError

Hi everyone, I want to write a custom Authenticator that borrow code from AbstractIdpAuthenticator (or better, extends it). However, as soon as my authenticator attempts to load a class from the keycloak-services package, I get a NoClassDefFoundError. For example: 08:24:53,608 ERROR [org.keycloak.services.error.KeycloakErrorHandler] (default task-6) Uncaught server error: java.lang.NoClassDefFoundError: org/keycloak/authentication/authenticators/broker/util/SerializedBrokeredIdentityContext I used the authenticator example provided in the examples directory as a base for writing the pom.xml file. Should I be able to use or extend keycloak classes from within my provider (packaged as a jar, I also tried wildfly:deploy)? If so, what am I missing? I also posted a question on stackoverflow, you may find some relevant detail in it: https://stackoverflow.com/questions/57778240/noclassdeffounderror-in-a-pr... Thanks, Christophe