How to make lombok annotation @NotNull work in IntelliJ?

Question

For some reason lombok @NotNull annotation does not work in my maven project in IntelliJ IDEA.

I have a maven lombok dependency on version 1.16.16.

Here is my import statements.

As you see other lombok dependencies work fine. I discovered that @NotNull annotation has retention policy CLASS and other annotations (@Data, @NoArgsConstructor, etc) have retention policy SOURCE. Any ideas how to fix the issue?

Answer 1

批注是@NonNull，带有'n'