/**
 * A repository holds artifacts.
 *
 * @since 4.0.0
 * @see RemoteRepository
 * @see LocalRepository
 */
@Experimental
@Immutable
public interface Repository {

    /**
     * The reserved id for Maven Central
     */
    String CENTRAL_ID = "central";

    /**
     * Gets the identifier of this repository.
     *
     * @return the (case-sensitive) identifier, never {@code null}
     */

                            "mirrors.mirror.id",
                            null,
                            "must not be 'local'"
                                    + ", this identifier is reserved for the local repository"
                                    + ", using it for other repositories will corrupt your repository metadata.");
                }

                        errOn31,
                        Version.V20,
                        prefix + "id",
                        null,
                        "must not be 'local'" + ", this identifier is reserved for the local repository"
                                + ", using it for other repositories will corrupt your repository metadata.",
                        repository);
            }