case "bonus":
			// allow to change non-nullable to nullable
			if nullable, _ := columnType.Nullable(); !nullable {
				t.Fatalf("bonus's nullable should be true, bug got %t", nullable)
			}
		case "stock":
			// do not allow to change nullable to non-nullable
			if nullable, _ := columnType.Nullable(); !nullable {
				t.Fatalf("stock's nullable should be true, bug got %t", nullable)
			}
		}
	}
}

            this.xml = xml;
            this.artifact = artifact;
        }

        @Override
        @Nullable
        public ModelSource resolve(@Nonnull ModelLocator modelLocator, @Nonnull String relative) {
            return null;
        }

        @Override
        @Nullable
        public Path getPath() {
            return null;
        }

        @Override
        @Nonnull

import org.codehaus.plexus.interpolation.RegexBasedInterpolator;
import org.codehaus.plexus.interpolation.StringSearchInterpolator;
import org.codehaus.plexus.util.StringUtils;
import org.eclipse.sisu.Nullable;

import static org.apache.maven.model.building.Result.error;
import static org.apache.maven.model.building.Result.newResult;

/**
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */

            The parameter is available only for compatibility.
            """
        ),
    ] = ...,
    *,
    default_factory: Annotated[
        Union[Callable[[], Any], None],
        Doc(
            """
            A callable to generate the default value.

            This doesn't affect `Path` parameters as the value is always required.
            The parameter is available only for compatibility.