Resolve compilation errors in the AuthenticationApplication

[berezovskyi]

Description

Resolves compilation errors in the AuthenticationApplication

Checklist

• [ ] This PR adds an entry to the CHANGELOG. _See https://keepachangelog.com/en/1.0.0/ for instructions. Minor edits are exempt.
• [ ] This PR expects some manual changes to the generated code. The needed changes are detailed in the CHANGELOG entry.
• [x] This PR was tested with at least one code generation, resulting in a working OSLC server.
• [x] This PR does NOT break the user block code

[jadelkhoury]

Thanks @berezovskyi ! nice with LyoD contributions. I take liberty to merge this already.