Package org.drasyl.annotation
Annotation Type NonNull
@Target({METHOD,PARAMETER,FIELD})
@Retention(RUNTIME)
@Documented
@Nonnull
@TypeQualifierNickname
public @interface NonNull
A common 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 the API.
Should be used at parameter, return value, and field level. Method overrides should
repeat parent @NonNull
annotations unless they behave differently.
- See Also: