After some testing I was able to get the sample project working. It was
definitely an issue with the Lombok version, not with Netbeans. 1.16.x was
being pulled in by the parent POM - but 1.18.x works as expected. So I have
a workaround (add direct dependency) until my company upgrades the parent
For reference it produced the following exception in the logs:
Thanks for your help Gj.