Path rootDirectory = basedir;
        while (rootDirectory != null && !isRootDirectory(rootDirectory)) {
            rootDirectory = rootDirectory.getParent();
        }
        return rootDirectory;
    }

    @Nonnull
    default String getNoRootMessage() {
        return UNABLE_TO_FIND_ROOT_PROJECT_MESSAGE;
    }

    boolean isRootDirectory(Path dir);

 * @deprecated use {@code org.apache.maven.api.services.model.RootLocator} instead
 */
@Named
@Deprecated(since = "4.0.0")
public class DefaultRootLocator implements RootLocator {

    @Override
    public boolean isRootDirectory(Path dir) {
        if (Files.isDirectory(dir.resolve(".mvn"))) {
            return true;
        }
        // we're too early to use the modelProcessor ...
        Path pom = dir.resolve("pom.xml");