@Target(value={METHOD,PARAMETER,FIELD}) @Retention(value=RUNTIME) @Documented @Nonnull(when=MAYBE) @TypeQualifierNickname public @interface Nullable
null
under some circumstance. 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 Reactor API.
Should be used at parameter, return value, and field level.
Methods overrides should repeat parent @Nullable
annotations unless they behave
differently.
Can be used in association with NonNullApi
to override the default
non-nullable semantic to nullable.
NonNullApi
,
NonNull