import java.lang.annotation.*; @lombok.RequiredArgsConstructor @lombok.Getter @lombok.Setter class NonNullPlain { @lombok.NonNull int i; @lombok.NonNull String s; @NotNull Object o; @Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER, ElementType.LOCAL_VARIABLE}) @Retention(RetentionPolicy.CLASS) public @interface NotNull {} }