@Target(value={ANNOTATION_TYPE,METHOD})
@Retention(value=RUNTIME)
@Documented
@API(status=EXPERIMENTAL,
since="5.4")
@ArgumentsSource(value=NullArgumentsProvider.class)
public @interface NullSource
@NullSource is an ArgumentsSource which provides a single
null argument to the annotated @ParameterizedTest method.
Note that @NullSource cannot be used for an argument that has
a primitive type.
ArgumentsSource,
ParameterizedTest,
EmptySource,
NullAndEmptySource