Annotation Interface NonNull
null. Leverages JSR 305 meta-annotations to indicate nullability in Java to common tools with JSR 305 support and used by Kotlin to infer nullability of Spring API.
Should be used at parameter, return value, and field level. Method overrides should repeat parent
@NonNull annotations unless
they behave differently.
@NonNullApi (scope = parameters + return values) to set the default behavior to non-nullable in order to avoid annotating
your whole codebase with