Error configuring Keycloak CAS IDP

[rogeriovalente]

I'm trying to setup a CAS IDP on Keycloak (9.0.2) following the script.
Did download and deploy of keycloak-cas-services-4.8.3.Final, change the "Admin Console Theme" to "keycloak-extended" in Master Realm, filled the form of CAS IDP config but when click on save button I'm getting the exception below:

ERROR [org.keycloak.services.error.KeycloakErrorHandler] (default task-115)
Uncaught server error: java.lang.AbstractMethodError: Method io/github/johnjcool/keycloak/broker/cas/CasIdentityProviderFactory.createConfig()Lorg/keycloak/models/IdentityProviderModel; is abstract at io.github.johnjcool.keycloak.broker.cas.CasIdentityProviderFactory.createConfig(CasIdentityProviderFactory.java)

[johnjcool]

please fork and update yourself to keycloak version. i have no time to maintain anymore.