Map<String, Dependency> normalized = new LinkedHashMap<>(dependencies.size() * 2);

        for (Dependency dependency : dependencies) {
            normalized.put(dependency.getManagementKey(), dependency);
        }

        if (dependencies.size() != normalized.size()) {
            builder.dependencies(normalized.values());
        }

        return builder.build();
    }

     * @return The normalized URL or {@code null} if the input was {@code null}.
     */
    String normalize(String url);

    }

    private UrlNormalizer normalizer;

    UrlNormalizingPostProcessor(UrlNormalizer normalizer) {
        this.normalizer = normalizer;
    }

    @Override
    public Object execute(String expression, Object value) {
        if (value != null && URL_EXPRESSIONS.contains(expression)) {
            return normalizer.normalize(value.toString());
        }

        return null;
    }

     * @param request The model building request that holds further settings, must not be {@code null}.
     */
    void normalize(Model model, ModelBuildingRequest request);

                    }
                    normalized = true;
                } else {
                    repos.add((ArtifactRepository) repository);
                }
            }

            if (normalized) {
                return repos;
            }
        }

        return (List<ArtifactRepository>) repositories;
    }

	if isGroup {
		dnValidator = sys.LDAPConfig.GetValidatedGroupDN
	}

	// map of normalized DN keys to original keys.
	normalizedDNKeysMap := make(map[string][]string)
	var collectedErrors []error
	var skipped []string
	for k := range policyMap {
		_, err := ldap.NormalizeDN(k)
		if err != nil {
			// not a valid DN, ignore.
			continue
		}

    // together and this really shows the problem of constructing a sensible default configuration but
    // it's all encapsulated here so it appears normalized to the POM builder.

    // We are going to take the project packaging and find all plugin in the default lifecycle and create
    // fully populated Plugin objects, including executions with goals and default configuration taken

    // canonical (absolute, normalized, symlinks resolved, etc.) form of a path to a nonexistent
    // file. getCanonicalFile() can at least get the canonical form of the part of the path which
    // actually exists and then append the normalized remainder of the path to that.
    Path normalizedAbsolutePath = path.toAbsolutePath().normalize();
    Path parent = normalizedAbsolutePath.getParent();

    // canonical (absolute, normalized, symlinks resolved, etc.) form of a path to a nonexistent
    // file. getCanonicalFile() can at least get the canonical form of the part of the path which
    // actually exists and then append the normalized remainder of the path to that.
    Path normalizedAbsolutePath = path.toAbsolutePath().normalize();
    Path parent = normalizedAbsolutePath.getParent();

 */
class DefaultUrlNormalizerTest {

    private UrlNormalizer normalizer = new DefaultUrlNormalizer();

    private String normalize(String url) {
        return normalizer.normalize(url);
    }

    @Test
    void testNullSafe() {
        assertNull(normalize(null));
    }

    @Test
    void testTrailingSlash() {
        assertEquals("", normalize(""));