Hello Gunther,
Thank you for your response. It gives me something to look at. I am currently working on 3 different projects, so I will probably continue with this at the end of the week.
the code in your project seems to have dependencies that cannot be resolved.
That is indeed a problem. I should make these dependencies available somehow. Maybe Github or Maven central.
Thanks for your example code. I will see if I can use it to reproduce (and fix?) my problem.
Best regards, Nico