Couldn't find any helper support messages in logs

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#1

Hello,

beside the solr-warnings in the log, we have a lot of these ones:

Mar 11, 2021 6:14:55 PM org.restlet.engine.security.AuthenticatorUtils parseResponse
WARNING: Couldn't find any helper support the HTTP_Negotiate challenge scheme.
Mar 11, 2021 6:14:57 PM org.restlet.engine.security.AuthenticatorUtils parseResponse
WARNING: Couldn't find any helper support the HTTP_Negotiate challenge scheme.
Mar 11, 2021 6:14:59 PM org.restlet.engine.security.AuthenticatorUtils parseResponse
WARNING: Couldn't find any helper support the HTTP_Negotiate challenge scheme.

We use the LDAP Authenticator which works fine (using Apache as Reverse Proxy and for auth. against Windows AD).

There are just these log entries which are written all day (not only on startup or similar). Is there a missing configuration or something else? If you need some more information, please let me know.

Thanks,
Gerd

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#2

I am using Keycloak to enable SSO in my wiki application, I got the same log:

org.restlet.engine.security.AuthenticatorUtils parseResponse
WARNING: Couldn’t find any helper support the HTTP_Bearer challenge scheme.

Do you find a solution for this?
Anyone has the same error?