Flight module issue

Vojta found out:

The flight module has problems when generating the swagger index page. It does not include any operations, even though they are defined in the.java file. Therefore, exposed API mappings don't work, as I tried, and upon access, they throw a 404 error response. I actually investigated this problem and found the solution to overcome it. Check the attached print screen; it's just one line.

And included a picture: