*
     * @return The effective identifier of the model, never {@code null}.
     */
    public String id() {
        // if source is null, it is the super model, which can be accessed via empty string
        return source != null ? source.getLocation() : "";
    }

    @Override
    public String toString() {
        return String.valueOf(model);
    }

    /**
     * The base URL of the repository, e.g. "http://repo1.maven.org/maven2/". Unless the URL is unknown, it will be
     * terminated by a trailing slash.
     *
     * @return The base URL of the repository or an empty string if unknown, never {@code null}.
     */
    String getRepositoryUrl();

    /**
     * The path of the artifact relative to the repository's base URL.
     *

    private boolean offline;

    private boolean forceUpdate;

    private ArtifactRepository localRepository;

    private List<ArtifactRepository> remoteRepositories;

    /**
     * Creates an empty repository request.
     */
    public DefaultRepositoryRequest() {
        // enables no-arg constructor
    }

    /**
     * Creates a shallow copy of the specified repository request.
     *

                        return Optional.of(
                                new DefaultRemoteRepository((org.eclipse.aether.repository.RemoteRepository) repo));
                    } else {
                        return Optional.empty();
                    }
                }
            };
        } catch (VersionRangeResolutionException e) {
            throw new VersionRangeResolverException("Unable to resolve version range", e);
        }

    @Override
    public boolean isMavenVersion(String versionRange) {
        if (Objects.requireNonNull(versionRange, "versionRange cannot be null").isEmpty()) {
            throw new IllegalArgumentException("versionRange cannot be empty");
        }

        VersionConstraint constraint;
        try {
            constraint = versionScheme.parseVersionConstraint(versionRange);
        } catch (InvalidVersionSpecificationException e) {

     * track the problem back to its origin. A concrete example for such a source hint can be the file path or URL from
     * which the settings were read.
     *
     * @return The hint about the source of the problem or an empty string if unknown, never {@code null}.
     */
    String getSource();

    /**
     * Gets the one-based index of the line containing the problem. The line number should refer to some text file that

    //        ArtifactRepository localArtifactRepo = repoFactory.createLocalRepository( localRepo );
    //
    //        MavenProject project1 = getProjectBuilder().buildFromRepository( artifact, Collections.EMPTY_LIST,
    // localArtifactRepo );
    //
    //        System.out.println( "\n\n" );
    //        System.out.println( "Child SCM URL is: " + project1.getScm().getUrl() );

        EmptyLifecycleBindingsInjector.useEmpty();
    }

    /**
     * Will throw exception if url is empty. MNG-4050
     *
     * @throws Exception in case of issue
     */
    @Test
    void testEmptyUrl() throws Exception {
        buildPom("empty-distMng-repo-url");
    }

    /**
     * Tests that modules is not overridden by profile
     *
     * @throws Exception in case of issue

    private static final Attributes.Name AUTO_MODULE_NAME = new Attributes.Name("Automatic-Module-Name");

    /**
     * Module information for the path specified at construction time.
     * This map is usually either empty if no module was found, or a singleton map.
     * It may however contain more than one entry if module hierarchy was detected,
     * in which case there is one key per sub-directory.
     *

                        Stream.of(new ProjectArtifact(project)),
                        // main project artifact if not a pom
                        "pom".equals(project.getPackaging()) ? Stream.empty() : Stream.of(project.getArtifact())),
                // attached artifacts
                project.getAttachedArtifacts().stream());
        return artifacts.map(RepositoryUtils::toArtifact);
    }