static class UrlNormalizingPostProcessor implements InterpolationPostProcessor {

        private static final Set<String> URL_EXPRESSIONS;

        static {
            Set<String> expressions = new HashSet<>();
            expressions.add("project.url");
            expressions.add("project.scm.url");
            expressions.add("project.scm.connection");
            expressions.add("project.scm.developerConnection");

    a debug message.

  * If the wagon is bound to "file://" then:

    Retrieve the file or base-url file to be "downloaded".

    * If the file (or more usefully, the base-url file) exists, proceed.

    * If the file (or base-url file) doesn't exist, assume that this location
      is part of a file-share. Ignore the request and print a debug message
      as above.

    }

    public ArtifactRepository createArtifactRepository(
            String id,
            String url,
            ArtifactRepositoryLayout repositoryLayout,
            ArtifactRepositoryPolicy snapshots,
            ArtifactRepositoryPolicy releases) {
        return new MavenArtifactRepository(id, url, repositoryLayout, snapshots, releases);
    }

    public Artifact createArtifactWithClassifier(

        repo.name(settingsRepo.getName());
        repo.url(settingsRepo.getUrl());

        repo.location("id", toLocation(settingsRepo.getLocation("id")));
        repo.location("layout", toLocation(settingsRepo.getLocation("layout")));
        repo.location("name", toLocation(settingsRepo.getLocation("name")));
        repo.location("url", toLocation(settingsRepo.getLocation("url")));

        if (settingsRepo.getSnapshots() != null) {

            return null;
        }

        public String getUrl() {
            return repository.getUrl();
        }

        public void setUrl(String url) {}

        public String getBasedir() {
            return null;
        }

        public String getProtocol() {
            return repository.getProtocol();
        }

     * @param  url location of the remote repository
     * @return remote repository that can be used to download or upload artifacts
     *
     * @see org.apache.maven.api.services.RepositoryFactory#createRemote(String, String)
     */
    @Nonnull
    RemoteRepository createRemoteRepository(@Nonnull String id, @Nonnull String url);

    /**

                builder.url(src);
                builder.location("url", source.getLocation("url"));
            } else if (target.getUrl() == null) {
                builder.url(extrapolateChildUrl(src, source.isChildScmUrlInheritAppendPath(), context));
                builder.location("url", source.getLocation("url"));
            }
        }
    }

    @Override
    protected void mergeScm_Connection(

                && effective.getPluginRepositories().isEmpty()) {
            Repository central = Repository.newBuilder()
                    .id("central")
                    .name("Central Repository")
                    .url("https://repo.maven.apache.org/maven2")
                    .snapshots(RepositoryPolicy.newBuilder().enabled(false).build())
                    .build();
            Repository centralWithNoUpdate = central.withReleases(

        ArtifactRepository repository = repositories.get(0);
        assertEquals(TestMavenWorkspaceReader.REPO_ID, repository.getId());
        assertEquals(TestMavenWorkspaceReader.REPO_URL, repository.getUrl());
    }

    @Test
    void testTransitiveResolutionOrder() throws Exception {
        Artifact m = createLocalArtifact("m", "1.0");

        Artifact n = createLocalArtifact("n", "1.0");

                "id", "string://url", new ArtifactRepositoryLayoutStub(), null, null);
    }

    /**
     * Build an ArtifactRepository object.
     *
     * @param id
     * @param url
     * @return
     */
    private ArtifactRepository getRepo(String id, String url) {
        return artifactRepositoryFactory.createArtifactRepository(id, url, new DefaultRepositoryLayout(), null, null);
    }