}

    private boolean areAllDependenciesInReactor(
            Collection<MavenProject> projects, Collection<Dependency> dependencies) {
        Set<String> projectKeys = getReactorProjectKeys(projects);

        for (Dependency dependency : dependencies) {
            org.eclipse.aether.artifact.Artifact a = dependency.getArtifact();
            String key = ArtifactUtils.key(a.getGroupId(), a.getArtifactId(), a.getVersion());

    private final Map<MavenProject, Integer> order;

    private final Map<String, MavenProject> projects;

    /**
     * Creates a new project dependency graph based on the specified projects.
     *
     * @param projects The projects to create the dependency graph with
     * @throws DuplicateProjectException
     * @throws CycleDetectedException
     */

To add a dependency on Guava testlib using Maven, use the following:

```xml
<dependency>
  <groupId>com.google.guava</groupId>
  <artifactId>guava-testlib</artifactId>
  <version>33.5.0-jre</version>
  <scope>test</scope>
</dependency>
```

To add a dependency using Gradle:

```gradle
dependencies {

    /**
     * {@return the type of the dependency}
     * A dependency can be a <abbr>JAR</abbr> file,
     * a modular-<abbr>JAR</abbr> if it is intended to be placed on the module path,
     * a <abbr>JAR</abbr> containing test classes, a POM file, <i>etc.</i>
     */
    @Nonnull
    Type getType();

    /**
     * {@return the time at which the dependency will be used}

        Iterator<Dependency> sourceIterator = source.getDependencies().iterator();
        builder.dependencies(target.getDependencies().stream()
                .map(d -> mergeDependency(d, sourceIterator.next(), sourceDominant, context))
                .collect(Collectors.toList()));
    }

    @Override
    protected void mergeDependency_Exclusions(
            Dependency.Builder builder,

  <groupId>gid</groupId>
  <version>0.1</version>

  <dependencies>
    <dependency>
      <groupId>test</groupId>
      <artifactId>a</artifactId>
      <version>0.2</version>
      <scope>system</scope>
      <systemPath>should-use-variables-and-not-hard-code-this-path</systemPath>
    </dependency>
    <dependency>
      <groupId>test</groupId>
      <artifactId>b</artifactId>
      <version>0.1</version>

                Dependency dependency = new Dependency();

                dependency.setArtifactId(a.getArtifactId());
                dependency.setGroupId(a.getGroupId());
                dependency.setVersion(a.getVersion());
                dependency.setScope(a.getScope());
                dependency.setType(a.getType());
                dependency.setClassifier(a.getClassifier());

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-annotations</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-xml</artifactId>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>

    void testThatASystemScopedDependencyIsNotResolvedFromRepositories() throws Exception {
        //
        // We should get a whole slew of dependencies resolving this artifact transitively
        //
        Dependency d = new Dependency();
        d.setGroupId("org.apache.maven.its");
        d.setArtifactId("b");
        d.setVersion("0.1");
        d.setScope(Artifact.SCOPE_COMPILE);

 * or {@code Map<}{@link org.apache.maven.api.Dependency Dependency}{@code , }{@link java.nio.file.Path Path}{@code >}.
 *
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface Resolution {

    /**
     * The id of a {@link org.apache.maven.api.PathScope} enum value.
     * If specified, a dependency resolution request will be issued,