Package org.springframework.lang
Annotation Interface NonNull
@Target({METHOD,PARAMETER,FIELD})
@Retention(RUNTIME)
@Documented
@Nonnull
@TypeQualifierNickname
@Deprecated
public @interface NonNull
Deprecated.
A common Spring annotation to declare that annotated elements cannot be
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 the parameter, return value, and field level. Method
overrides should repeat parent @NonNull annotations unless they behave
differently.
Use @NonNullApi (scope = parameters + return values) and/or @NonNullFields
(scope = fields) to set the default behavior to non-nullable in order to avoid annotating
your whole codebase with @NonNull.
- Since:
- 5.0
- Author:
- Sebastien Deleuze, Juergen Hoeller
- See Also:
NonNullinstead