package javax.annotation;
import java.lang.annotation.
Documented;
import java.lang.annotation.
Retention;
import java.lang.annotation.
RetentionPolicy;
import javax.annotation.meta.
TypeQualifierNickname;
import javax.annotation.meta.
When;
/**
* The annotated element could be null under some circumstances.
* <p>
* In general, this means developers will have to read the documentation to
* determine when a null value is acceptable and whether it is necessary to
* check for a null value.
* <p>
* This annotation is useful mostly for overriding a {@link Nonnull} annotation.
* Static analysis tools should generally treat the annotated items as though they
* had no annotation, unless they are configured to minimize false negatives.
* Use {@link CheckForNull} to indicate that the element value should always be checked
* for a null value.
* <p>
* When this annotation is applied to a method it applies to the method return value.
*/
@
Documented
@
TypeQualifierNickname
@
Nonnull(when =
When.
UNKNOWN)
@
Retention(
RetentionPolicy.
RUNTIME)
public @interface
Nullable {
}