org.springframework.core.io.FileUrlResource#org.eclipse.aether.graph.Dependency源码实例Demo

public List<Dependency> resolveDependenciesFromPOM(File pomFile) throws Exception
{
   PlexusContainer plexus = new PlexusContainer();
   List<Dependency> result;
   try
   {
      ProjectBuildingRequest request = getBuildingRequest(plexus);
      request.setResolveDependencies(true);
      ProjectBuilder builder = plexus.lookup(ProjectBuilder.class);
      ProjectBuildingResult build = builder.build(pomFile, request);
      result = build.getDependencyResolutionResult().getDependencies();
   }
   finally
   {
      plexus.shutdown();
   }
   return result;
}
 

private List<Artifact> getDeployDependencies(Artifact artifact, List<Exclusion> exclusions, boolean testScope, Map<String, String> properties, DeployType type) {
    ArtifactDescriptorRequest descriptorRequest = new ArtifactDescriptorRequest();
    descriptorRequest.setRepositories(AetherUtil.newRepositories(deployConfig));
    descriptorRequest.setArtifact(artifact);
    Model model = AetherUtil.readPom(artifact);
    if (model == null) {
        throw new IllegalStateException("Unable to read POM for " + artifact.getFile());
    }
    try {
        ArtifactDescriptorResult descriptorResult = system.readArtifactDescriptor(session, descriptorRequest);

        return descriptorResult.getDependencies().stream()
                .filter(d -> type == DeployType.DEFAULT || (type == DeployType.APPLICATION && !d.getArtifact().getExtension().equals("zip")) || (type == DeployType.ARTIFACT && !d.getArtifact().getExtension().equals("jar")))
                .filter(d -> "compile".equalsIgnoreCase(d.getScope()) || ("test".equalsIgnoreCase(d.getScope()) && testScope))
                .filter(d -> !exclusions.contains(new Exclusion(d.getArtifact().getGroupId(), d.getArtifact().getArtifactId(), null, null)))
                .map(Dependency::getArtifact)
                .map(d -> this.checkWithModel(model, d, properties))
                .collect(Collectors.toList());

    } catch (ArtifactDescriptorException e) {
        LOG.error("Unable to resolve dependencies for deploy artifact '{}', unable to auto-discover ", artifact, e);
    }
    return Collections.emptyList();
}
 

@Override
public void populateResult(RepositorySystemSession session,
	ArtifactDescriptorResult result,
	Model model) {
	super.populateResult(session, result, model);
	Parent parent = model.getParent();
	if (parent != null) {
		DefaultArtifact art =
			new DefaultArtifact(parent.getGroupId(),
				parent.getArtifactId(),
				"pom",
				parent.getVersion());
		Dependency dep = new Dependency(art, "compile");
		result.addDependency(dep);
	}
}
 

@Test
public void testTreeWithScopeConflict() throws IOException
{
    DependencyNode root = new DefaultDependencyNode(
            new Dependency( new DefaultArtifact( "com.google", "rootArtifact", "jar", "1.0.0" ), "compile" )
    );
    DependencyNode left = new DefaultDependencyNode(
            new Dependency( new DefaultArtifact( "org.apache", "left", "xml", "0.1-SNAPSHOT" ), "test", true )
    );
    DependencyNode right = new DefaultDependencyNode(
            new Dependency( new DefaultArtifact( "com.google", "rootArtifact", "jar", "1.0.0" ), "test" )
    );

    root.setChildren( Arrays.asList( left, right ) );

    String actual = serializer.serialize( root );
    File file = new File(getBasedir(), "/target/test-classes/SerializerTests/ScopeConflict.txt");
    String expected = FileUtils.readFileToString(file);

    Assert.assertEquals(expected, actual);
}
 

/** Builds a class path for {@code bomProject}. */
private ClassPathResult findBomClasspath(
    MavenProject bomProject, RepositorySystemSession repositorySystemSession)
    throws EnforcerRuleException {

  ArtifactTypeRegistry artifactTypeRegistry = repositorySystemSession.getArtifactTypeRegistry();
  ImmutableList<Artifact> artifacts =
      bomProject.getDependencyManagement().getDependencies().stream()
          .map(dependency -> RepositoryUtils.toDependency(dependency, artifactTypeRegistry))
          .map(Dependency::getArtifact)
          .filter(artifact -> !Bom.shouldSkipBomMember(artifact))
          .collect(toImmutableList());

  ClassPathResult result = classPathBuilder.resolve(artifacts);
  ImmutableList<UnresolvableArtifactProblem> artifactProblems = result.getArtifactProblems();
  if (!artifactProblems.isEmpty()) {
    throw new EnforcerRuleException("Failed to collect dependency: " + artifactProblems);
  }
  return result;
}
 

@Override
public boolean selectDependency(Dependency dependency)
{
   boolean result = false;
   if (!isExcluded(dependency))
   {
      boolean module = this.classifier.equals(dependency.getArtifact().getClassifier());

      String scope = dependency.getScope();

      if (dependency.isOptional() && depth > 1)
         result = false;
      else if ("test".equals(scope))
         result = false;
      else
         result = (module && depth == 1) || (!module && !"provided".equals(scope));
   }
   return result;
}
 

private void setupMockDependencyResolution(String... coordinates) throws RepositoryException {
  // The root node is Maven artifact "a:b:0.1" that has dependencies specified as `coordinates`.
  DependencyNode rootNode = createResolvedDependencyGraph(coordinates);
  Traverser<DependencyNode> traverser = Traverser.forGraph(node -> node.getChildren());

  // DependencyResolutionResult.getDependencies returns depth-first order
  ImmutableList<Dependency> dummyDependencies =
      ImmutableList.copyOf(traverser.depthFirstPreOrder(rootNode)).stream()
          .map(DependencyNode::getDependency)
          .filter(Objects::nonNull)
          .collect(toImmutableList());
  when(mockDependencyResolutionResult.getDependencies()).thenReturn(dummyDependencies);
  when(mockDependencyResolutionResult.getResolvedDependencies())
      .thenReturn(
          ImmutableList.copyOf(traverser.breadthFirst(rootNode.getChildren())).stream()
              .map(DependencyNode::getDependency)
              .filter(Objects::nonNull)
              .collect(toImmutableList()));
  when(mockDependencyResolutionResult.getDependencyGraph()).thenReturn(rootNode);
  when(mockProject.getDependencies())
      .thenReturn(
          dummyDependencies.subList(0, coordinates.length).stream()
              .map(LinkageCheckerRuleTest::toDependency)
              .collect(Collectors.toList()));
}
 

@Test
public void testExecute_shouldExcludeTestScope() throws EnforcerRuleException {
  org.apache.maven.model.Dependency dependency = new org.apache.maven.model.Dependency();
  Artifact artifact = new DefaultArtifact("junit:junit:3.8.2");
  dependency.setArtifactId(artifact.getArtifactId());
  dependency.setGroupId(artifact.getGroupId());
  dependency.setVersion(artifact.getVersion());
  dependency.setClassifier(artifact.getClassifier());
  dependency.setScope("test");

  when(mockDependencyResolutionResult.getDependencyGraph()).thenReturn(
      new DefaultDependencyNode(dummyArtifactWithFile)
  );
  when(mockProject.getDependencies())
      .thenReturn(ImmutableList.of(dependency));

  rule.execute(mockRuleHelper);
}
 

@Before
public void setUp() throws Exception {
    classLoaderResolver = new ClassLoaderResolver(log, repositorySystem, repositorySystemSession, Collections.<RemoteRepository>emptyList());
    when(repositorySystem.collectDependencies(eq(repositorySystemSession), any(CollectRequest.class)))
            .thenReturn(new CollectResult(new CollectRequest()).setRoot(root));
    when(child.getDependency()).thenReturn(new Dependency(new DefaultArtifact(FOO,
            BAR,
            QUX,
            BAZ,
            FOO + BAR,
            Collections.<String, String>emptyMap(),
            new File(FOO + "/" + BAR)), QUX + BAZ));
    when(root.accept(any(DependencyVisitor.class))).then(new Answer<Void>() {
        public Void answer(InvocationOnMock invocationOnMock) {
            DependencyVisitor dependencyVisitor = invocationOnMock.getArgument(0);
            dependencyVisitor.visitEnter(child);
            dependencyVisitor.visitLeave(child);
            return null;
        }
    });
}
 

private boolean isExcludedFromParent(Dependency dependency)
{
   boolean result = false;
   if (parent != null && parent.getExclusions().size() > 0)
   {
      for (Exclusion exclusion : parent.getExclusions())
      {
         if (exclusion != null)
         {
            if (exclusion.getArtifactId() != null
                     && exclusion.getArtifactId().equals(dependency.getArtifact().getArtifactId()))
            {
               if (exclusion.getGroupId() != null
                        && exclusion.getGroupId().equals(dependency.getArtifact().getGroupId()))
               {
                  result = true;
                  break;
               }
            }
         }
      }
   }
   return result;
}
 

public static Bom readBom(Path pomFile) throws MavenRepositoryException {
  RepositorySystem system = RepositoryUtility.newRepositorySystem();
  RepositorySystemSession session = RepositoryUtility.newSession(system);

  MavenProject mavenProject = RepositoryUtility.createMavenProject(pomFile, session);
  String coordinates = mavenProject.getGroupId() + ":" + mavenProject.getArtifactId() 
      + ":" + mavenProject.getVersion();
  DependencyManagement dependencyManagement = mavenProject.getDependencyManagement();
  List<org.apache.maven.model.Dependency> dependencies = dependencyManagement.getDependencies();

  ArtifactTypeRegistry registry = session.getArtifactTypeRegistry();
  ImmutableList<Artifact> artifacts = dependencies.stream()
      .map(dependency -> RepositoryUtils.toDependency(dependency, registry))
      .map(Dependency::getArtifact)
      .filter(artifact -> !shouldSkipBomMember(artifact))
      .collect(ImmutableList.toImmutableList());
  
  Bom bom = new Bom(coordinates, artifacts);
  return bom;
}
 

private void processPlatformArtifact(DependencyNode node, Path descriptor) throws BootstrapDependencyProcessingException {
    final Properties rtProps = resolveDescriptor(descriptor);
    if (rtProps == null) {
        return;
    }
    final String value = rtProps.getProperty(BootstrapConstants.PROP_DEPLOYMENT_ARTIFACT);
    appBuilder.handleExtensionProperties(rtProps, node.getArtifact().toString());
    if (value == null) {
        return;
    }
    Artifact deploymentArtifact = toArtifact(value);
    if (deploymentArtifact.getVersion() == null || deploymentArtifact.getVersion().isEmpty()) {
        deploymentArtifact = deploymentArtifact.setVersion(node.getArtifact().getVersion());
    }
    node.setData(QUARKUS_DEPLOYMENT_ARTIFACT, deploymentArtifact);
    runtimeNodes.add(node);
    Dependency dependency = new Dependency(node.getArtifact(), JavaScopes.COMPILE);
    runtimeExtensionDeps.add(dependency);
    managedDeps.add(new Dependency(deploymentArtifact, JavaScopes.COMPILE));
}
 

@Test
public void testCycleBreaking() throws DependencyResolutionException {
  RepositorySystem system = RepositoryUtility.newRepositorySystem();
  DefaultRepositorySystemSession session =
      RepositoryUtility.createDefaultRepositorySystemSession(system);

  // This dependencySelector selects everything except test scope. This creates a dependency tree
  // with a cycle of dom4j:dom4j:jar:1.6.1 (optional) and jaxen:jaxen:jar:1.1-beta-6 (optional).
  session.setDependencySelector(new ScopeDependencySelector("test"));

  session.setDependencyGraphTransformer(
      new ChainedDependencyGraphTransformer(
          new CycleBreakerGraphTransformer(), // This prevents StackOverflowError
          new JavaDependencyContextRefiner()));

  // dom4j:1.6.1 is known to have a cycle
  CollectRequest collectRequest = new CollectRequest();
  collectRequest.setRepositories(ImmutableList.of(RepositoryUtility.CENTRAL));
  collectRequest.setRoot(new Dependency(new DefaultArtifact("dom4j:dom4j:1.6.1"), "compile"));
  DependencyRequest request = new DependencyRequest(collectRequest, null);

  // This should not raise StackOverflowError
  system.resolveDependencies(session, request);
}
 

/**
 * jaxen-core is an optional dependency that should be included when building a dependency graph
 * of JDOM 1.1, no matter how we build the graph.
 */
@Test
public void testDirectOptional() {
  DefaultArtifact jdom = new DefaultArtifact("org.jdom:jdom:1.1");

  DependencyGraph fullGraph =
      dependencyGraphBuilder.buildFullDependencyGraph(Arrays.asList(jdom));
  int jaxenCount = countArtifactId(fullGraph, "jaxen-core");
  Assert.assertEquals(1, jaxenCount);
  
  DependencyGraph mavenGraph =
      dependencyGraphBuilder
          .buildMavenDependencyGraph(new Dependency(jdom, "compile"));
  Assert.assertEquals(1, countArtifactId(mavenGraph, "jaxen-core"));   
  
  DependencyGraph verboseGraph =
      dependencyGraphBuilder
          .buildMavenDependencyGraph(new Dependency(jdom, "compile"));
  Assert.assertEquals(1, countArtifactId(verboseGraph, "jaxen-core"));
}
 

private Dependency mavenDependencyToDependency(
		org.apache.maven.model.Dependency dep) {
	Artifact art = new DefaultArtifact(dep.getGroupId(),
		dep.getArtifactId(),
		dep.getClassifier(),
		dep.getType(),
		dep.getVersion());
	Collection<Exclusion> excls = new HashSet<Exclusion>();
	for (org.apache.maven.model.Exclusion excl :
		dep.getExclusions()) {
		excls.add(mavenExclusionToExclusion(excl));
	}
	return new Dependency(art,
		dep.getScope(),
		new Boolean(dep.isOptional()),
		excls);
}
 

private void addDependencies(Function<Artifact, Boolean> duplicateFilter, Optional<String> extension, Optional<String> classifier) {
    List<Dependency> dependencies = input.stream()
            .map(DependencyNode::getDependency)
            .collect(Collectors.toList());

    Set<String> existingGavs = dependencies.stream()
            .map(Dependency::getArtifact)
            .filter(duplicateFilter::apply)
            .map(this::toGav)
            .collect(Collectors.toSet());

    List<DependencyNode> newNodes = input.stream()
            .filter(n -> !existingGavs.contains(toGav(n.getDependency().getArtifact())))
            .map(n -> createNode(n, extension, classifier))
            .collect(Collectors.toList());
    output.addAll(newNodes);
}
 

/**
 * Turns the list of dependencies into a simple dependency tree
 */
public DependencyResult toDependencyTree(List<Dependency> deps, List<RemoteRepository> mainRepos)
        throws BootstrapMavenException {
    DependencyResult result = new DependencyResult(
            new DependencyRequest().setCollectRequest(new CollectRequest(deps, Collections.emptyList(), mainRepos)));
    DefaultDependencyNode root = new DefaultDependencyNode((Dependency) null);
    result.setRoot(root);
    GenericVersionScheme vs = new GenericVersionScheme();
    for (Dependency i : deps) {
        DefaultDependencyNode node = new DefaultDependencyNode(i);
        try {
            node.setVersionConstraint(vs.parseVersionConstraint(i.getArtifact().getVersion()));
            node.setVersion(vs.parseVersion(i.getArtifact().getVersion()));
        } catch (InvalidVersionSpecificationException e) {
            throw new RuntimeException(e);
        }
        root.getChildren().add(node);
    }
    return result;
}
 

@Test
public void testEquals() {
  DependencyPath path1 =
      new DependencyPath(null)
          .append(new Dependency(foo, "compile"))
          .append(new Dependency(bar, "compile"));
  DependencyPath path2 =
      new DependencyPath(null)
          .append(new Dependency(foo, "compile"))
          .append(new Dependency(bar, "compile"));
  DependencyPath path3 =
      new DependencyPath(null)
          .append(new Dependency(bar, "compile"))
          .append(new Dependency(foo, "compile"));
  DependencyPath path4 = new DependencyPath(null).append(new Dependency(foo, "compile"));

  new EqualsTester()
      .addEqualityGroup(path1, path2)
      .addEqualityGroup(path3)
      .addEqualityGroup(path4)
      .testEquals();
}
 

@Test
public void testGrpcAuth() {

  DefaultArtifact grpc = new DefaultArtifact("io.grpc:grpc-auth:1.15.0");
  DependencyGraph completeDependencies =
      dependencyGraphBuilder
          .buildFullDependencyGraph(ImmutableList.of(grpc));
  DependencyGraph transitiveDependencies =
      dependencyGraphBuilder
          .buildMavenDependencyGraph(new Dependency(grpc, "compile"));

  Map<String, String> complete = completeDependencies.getHighestVersionMap();
  Map<String, String> transitive =
      transitiveDependencies.getHighestVersionMap();
  Set<String> completeKeyset = complete.keySet();
  Set<String> transitiveKeySet = transitive.keySet();

  // The complete dependencies sees a path to com.google.j2objc:j2objc-annotations that's
  // been removed in newer versions so this is not bidirectional set equality.
  Assert.assertTrue(complete.containsKey("com.google.j2objc:j2objc-annotations"));
  Truth.assertThat(completeKeyset).containsAtLeastElementsIn(transitiveKeySet);
}
 

private ImmutableMap<String, Artifact> getRunTimeTransitiveDeps(Iterable<Dependency> mavenCoords)
    throws RepositoryException {

  CollectRequest collectRequest = new CollectRequest();
  collectRequest.setRequestContext(JavaScopes.RUNTIME);
  collectRequest.setRepositories(repos);

  for (Dependency dep : mavenCoords) {
    collectRequest.addDependency(dep);
  }

  DependencyFilter filter = DependencyFilterUtils.classpathFilter(JavaScopes.RUNTIME);
  DependencyRequest dependencyRequest = new DependencyRequest(collectRequest, filter);

  DependencyResult dependencyResult = repoSys.resolveDependencies(session, dependencyRequest);

  ImmutableSortedMap.Builder<String, Artifact> knownDeps = ImmutableSortedMap.naturalOrder();
  for (ArtifactResult artifactResult : dependencyResult.getArtifactResults()) {
    Artifact node = artifactResult.getArtifact();
    knownDeps.put(buildKey(node), node);
  }
  return knownDeps.build();
}
 

public List<File> resolveArtifactsAndDependencies(List<Artifact> artifacts) throws DependencyResolutionException {
    List<Dependency> dependencies = new ArrayList<Dependency>();

    for (Artifact artifact : artifacts) {
        dependencies.add(new Dependency(artifact, JavaScopes.RUNTIME));
    }

    CollectRequest collectRequest = new CollectRequest((Dependency) null, dependencies, repositories);
    DependencyFilter classpathFilter = DependencyFilterUtils.classpathFilter(JavaScopes.RUNTIME);
    DependencyRequest dependencyRequest = new DependencyRequest(collectRequest, classpathFilter);
    DependencyResult result = system.resolveDependencies(session, dependencyRequest);

    List<File> files = new ArrayList<File>();

    for (ArtifactResult artifactResult : result.getArtifactResults()) {
        files.add(artifactResult.getArtifact().getFile());
    }

    return files;
}
 

/**
 * Download a plugin, all of its transitive dependencies and dependencies declared on the plugin declaration.
 * <p>
 * Dependencies and plugin artifacts that refer to an artifact in the current reactor build are ignored.
 * Transitive dependencies that are marked as optional are ignored
 * Transitive dependencies with the scopes "test", "system" and "provided" are ignored.
 *
 * @param plugin the plugin to download
 */
public Set<ArtifactWithRepoType> resolvePlugin(Plugin plugin) {
    Artifact pluginArtifact = toArtifact(plugin);
    Dependency pluginDependency = new Dependency(pluginArtifact, null);
    CollectRequest collectRequest = new CollectRequest(pluginDependency, pluginRepositories);
    collectRequest.setRequestContext(RepositoryType.PLUGIN.getRequestContext());

    List<Dependency> pluginDependencies = new ArrayList<>();
    for (org.apache.maven.model.Dependency d : plugin.getDependencies()) {
        Dependency dependency = RepositoryUtils.toDependency(d, typeRegistry);
        pluginDependencies.add(dependency);
    }
    collectRequest.setDependencies(pluginDependencies);

    try {
        CollectResult collectResult = repositorySystem.collectDependencies(pluginSession, collectRequest);
        return getArtifactsFromCollectResult(collectResult, RepositoryType.PLUGIN);
    } catch (DependencyCollectionException | RuntimeException e) {
        log.error("Error resolving plugin " + plugin.getGroupId() + ":" + plugin.getArtifactId());
        handleRepositoryException(e);
    }
    return Collections.emptySet();
}
 

private static List<Dependency> toAetherDeps(List<AppDependency> directDeps) {
    if (directDeps.isEmpty()) {
        return Collections.emptyList();
    }
    final List<Dependency> directMvnDeps = new ArrayList<>(directDeps.size());
    for (AppDependency dep : directDeps) {
        directMvnDeps.add(new Dependency(toAetherArtifact(dep.getArtifact()), dep.getScope()));
    }
    return directMvnDeps;
}
 

private static org.eclipse.aether.graph.DependencyNode createMavenDependencyNode(String artifactId, String scope, org.eclipse.aether.graph.DependencyNode... children) {
  Dependency dependency = new Dependency(createArtifact(artifactId), scope);
  DefaultDependencyNode node = new DefaultDependencyNode(dependency);
  node.setChildren(asList(children));

  return node;
}
 

public CollectResult collectManagedDependencies(Artifact artifact, List<Dependency> deps, List<Dependency> managedDeps,
        List<RemoteRepository> mainRepos, String... excludedScopes) throws BootstrapMavenException {
    try {
        return repoSystem.collectDependencies(repoSession,
                newCollectManagedRequest(artifact, deps, managedDeps, mainRepos, excludedScopes));
    } catch (DependencyCollectionException e) {
        throw new BootstrapMavenException("Failed to collect dependencies for " + artifact, e);
    }
}
 

private boolean notAllowed(Set<NonVersionedArtifact> artifacts, Dependency dependency) {
    for (NonVersionedArtifact artifact : artifacts) {
        if (matches(dependency, artifact)) {
            return false;
        }
    }

    return true;
}
 

private List<org.eclipse.aether.graph.Dependency> resolveManagedDependencies(String groupId, String artifactId,
		String version, List<RemoteRepository> repositories) {
	try {
		return this.repositorySystem
				.readArtifactDescriptor(this.repositorySystemSession, new ArtifactDescriptorRequest(
						new DefaultArtifact(groupId, artifactId, "pom", version), repositories, null))
				.getManagedDependencies();
	}
	catch (ArtifactDescriptorException ex) {
		throw new RuntimeException(ex);
	}
}
 

private void resolve( ResolveRequest resolveRequest )
{

    RepositorySystem system = mavenSystemManager.getRepositorySystem();
    RepositorySystemSession session = MavenSystemManager.newRepositorySystemSession( resolveRequest.localRepoDir );

    org.eclipse.aether.artifact.Artifact artifact = new DefaultArtifact(
        resolveRequest.groupId + ":" + resolveRequest.artifactId + ":" + resolveRequest.version );

    CollectRequest collectRequest = new CollectRequest();
    collectRequest.setRoot( new Dependency( artifact, "" ) );

    // add remote repositories
    for ( RemoteRepository remoteRepository : resolveRequest.remoteRepositories )
    {
        org.eclipse.aether.repository.RemoteRepository repo = new org.eclipse.aether.repository.RemoteRepository.Builder( remoteRepository.getId( ), "default", remoteRepository.getLocation( ).toString() ).build( );
        collectRequest.addRepository(repo);
    }
    collectRequest.setRequestContext( "project" );

    //collectRequest.addRepository( repo );

    try
    {
        CollectResult collectResult = system.collectDependencies( session, collectRequest );
        collectResult.getRoot().accept( resolveRequest.dependencyVisitor );
        log.debug("Collected dependency results for resolve");
    }
    catch ( DependencyCollectionException e )
    {
        log.error( "Error while collecting dependencies (resolve): {}", e.getMessage(), e );
    }



}
 

private ImmutableSetMultimap<Path, Prebuilt> downloadArtifacts(
    MutableDirectedGraph<Artifact> graph, ImmutableMap<String, Dependency> specifiedDependencies)
    throws ExecutionException, InterruptedException {
  ListeningExecutorService exec =
      MoreExecutors.listeningDecorator(
          Executors.newFixedThreadPool(
              Runtime.getRuntime().availableProcessors(),
              new MostExecutors.NamedThreadFactory("artifact download")));

  @SuppressWarnings("unchecked")
  List<ListenableFuture<Map.Entry<Path, Prebuilt>>> results =
      (List<ListenableFuture<Map.Entry<Path, Prebuilt>>>)
          (List<?>)
              exec.invokeAll(
                  graph.getNodes().stream()
                      .map(
                          artifact ->
                              (Callable<Map.Entry<Path, Prebuilt>>)
                                  () -> downloadArtifact(artifact, graph, specifiedDependencies))
                      .collect(ImmutableList.toImmutableList()));

  try {
    return ImmutableSetMultimap.<Path, Prebuilt>builder()
        .orderValuesBy(Ordering.natural())
        .putAll(Futures.allAsList(results).get())
        .build();
  } finally {
    exec.shutdown();
  }
}
 

@Test
public void testProjectBuilding() throws Exception
{
   File resource = new File(getClass().getResource("lib-1.0.0.Final.pom").getFile());
   Assert.assertTrue(resource.exists());
   List<Dependency> deps = projectHelper.resolveDependenciesFromPOM(resource);
   Assert.assertEquals(13, deps.size());
}