@Target(PACKAGE) @Retention(RUNTIME) @Documented @Nonnull @TypeQualifierDefault({METHOD,PARAMETER}) public @interface NonNullApi
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 package level in association with Nullable
annotations at parameter and return value level.