@Target(value={METHOD,FIELD,ANNOTATION_TYPE,CONSTRUCTOR,PARAMETER,TYPE_USE}) @Retention(value=RUNTIME) @Repeatable(value=Null.List.class) @Documented @Constraint(validatedBy={}) public @interface Null
null
.
Accepts any type.public abstract java.lang.String message
public abstract java.lang.Class<? extends Payload>[] payload