* aftereffects and bogus error messages.
         */
        List<Dependency> dependencies = model.getDependencies();
        Map<String, Dependency> normalized = new LinkedHashMap<>(dependencies.size() * 2);

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

        if (dependencies.size() != normalized.size()) {

      </dependency>
    </dependencies>
  </dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t06-a</artifactId>
      <version>1.0</version>
    </dependency>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t06-c</artifactId>
      <version>1.0</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>

        dependencies.add(new Dependency(B, A));
        dependencies.add(new Dependency(C, A));
        dependencies.add(new Dependency(X, B));
        dependencies.add(new Dependency(X, C));
        dependencies.add(new Dependency(Y, B));
        dependencies.add(new Dependency(Z, C));
        return dependencies;
    }

    @Override
    public List<MavenProject> getAllProjects() {

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>com.squareup.okhttp3</groupId>
        <artifactId>okhttp-bom</artifactId>
        <version>[5.2.0-SNAPSHOT,6.0.0-SNAPSHOT)</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>

            // Verify only one dependency remains
            Editor editor = new Editor(document);
            Element root = editor.root();
            Element dependencies = DomUtils.findChildElement(root, "dependencies");
            var dependencyElements = dependencies.children("dependency").toList();

                for (Dependency dependency : source.getDependencies()) {
                    String key = dependency.getManagementKey();
                    if (!dependencies.containsKey(key)) {
                        dependencies.put(key, dependency);
                    }
                }
            }

            depMgmt.setDependencies(new ArrayList<>(dependencies.values()));
        }
    }

/**
 * Collects, flattens and resolves dependencies.
 */
@Experimental
public interface DependencyResolver extends Service {

    /**
     * Collects the transitive dependencies of some artifacts and builds a dependency graph for the given path scope.
     * Note that this operation is only concerned about determining the coordinates of the transitive dependencies and
     * does not actually resolve the artifact files.
     *

        assertViolations(result, 0, 0, 2);

        assertContains(
                result.getWarnings().get(0),
                "'dependencies.dependency.exclusions.exclusion.groupId' for gid:aid:jar is missing");
        assertContains(
                result.getWarnings().get(1),
                "'dependencies.dependency.exclusions.exclusion.artifactId' for gid:aid:jar is missing");
    }

     * @throws IOException if the module information of the specified dependency cannot be read
     */
    Optional<String> getModuleName(@Nonnull Path dependency) throws IOException;

    /**
     * Returns the Java module descriptor of the dependency at the given path.
     * The given dependency should be one of the paths returned by {@link #getDependencies()}.

            Element dependencies = DomUtils.findChildElement(moduleBRoot, "dependencies");
            Element dependency = DomUtils.findChildElement(dependencies, "dependency");

            // Verify dependency elements exist before inference
            assertNotNull(DomUtils.findChildElement(dependency, "groupId"));
            assertNotNull(DomUtils.findChildElement(dependency, "artifactId"));