*/
        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()) {

            Element dependencies = DomUtils.findChildElement(dependencyManagement, "dependencies");
            var dependencyElements = dependencies.children("dependency").toList();
            assertEquals(1, dependencyElements.size(), "Should have only one dependency after duplicate removal");
        }

        @Test
        @DisplayName("should remove duplicate dependencies in regular dependencies")

        /**
         * Sets the direct dependencies. If both a root dependency and direct dependencies are given in the request, the
         * direct dependencies from the request will be merged with the direct dependencies from the root dependency's
         * artifact descriptor, giving higher priority to the dependencies from the request.
         *
         * @param dependencies the direct dependencies, may be {@code null}

  </properties>

  <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>

        List<Dependency> dependencies = new ArrayList<>();
        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

Also fügen wir sie in ihr eigenes `dependencies`-Modul (`app/dependencies.py`) ein.

Wir werden nun eine einfache Abhängigkeit verwenden, um einen benutzerdefinierten `X-Token`-Header zu lesen:

{* ../../docs_src/bigger_applications/app_an_py39/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip | Tipp

      </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>

        assertViolations(result, 0, 2, 0);

        assertContains(
                result.getErrors().get(0), "'dependencies.dependency.version' for test:b:jar must be a valid version");
        assertContains(
                result.getErrors().get(1),
                "'dependencies.dependency.version' for test:c:jar must not contain any of these characters");
    }

    @Test

if (project.name != "gradle-kotlin-dsl-accessors" && project.name != "test" /* remove once wrapper is updated */) {
    dependencies {
        testFixturesApi(project(":internal-testing"))
        // platform
        testFixturesImplementation(platform(project(":distributions-dependencies")))

        // add a set of default dependencies for fixture implementation
        testFixturesImplementation(libs.junit)
        testFixturesImplementation(libs.groovy)

                    String key = dependency.getManagementKey();
                    if (!dependencies.containsKey(key)) {
                        dependencies.put(key, dependency);
                    }
                }
            }

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