anchor.diff:  
               return config;
           }
  +
  +        // resolve to default tenant configuration
           return null;
       }
   }
  
positive.code: * https://www.keycloak.org/documentation.html[Keycloak Documentation]
  * https://openid.net/connect/[OpenID Connect]
  * https://tools.ietf.org/html/rfc7519[JSON Web Token]
  * https://developers.google.com/identity/protocols/OpenIDConnect[Google OpenID Connect]
negative.code: 
  [source,bash]
  ----
  ./target/security-openid-connect-multi-tenancy-quickstart-runner
  ----
  
  == Testing the Application
  