Securing the WildFly Management Console with OpenID Connect  with newer versions (26+) of Keycloak fails on attempt to

GET https://<keyclok-host>:<keyclok-https-port>/js/keycloak.js

with error status  404 Not Found, probably caused by

Keycloak JavaScript adapter now standalone

Keycloak JavaScript adapter is now a standalone library and is therefore no longer served statically from the Keycloak server. The goal is to de-couple the library from the Keycloak server, so that it can be refactored independently, simplifying the code and making it easier to maintain in the future. Additionally, the library is now free of third-party dependencies, which makes it more lightweight and easier to use in different environments.

So the Keycloak JavaScript adapter keycloak-js has to be included in the resources of the WildFly Management Console and loaded from the endpoint of the WildFly Management Console, instead of the Keycloak Server.

Blocks upgrade to Keycloak 26+ .