return warmUp(cache, WARMUP_MIN, WARMUP_MAX);
  }

  /**
   * Returns the entries that were added to the map, so they won't fall out of a map with weak or
   * soft references until the caller drops the reference to the returned entries.
   */
  private List<Entry<Object, Object>> warmUp(
      LoadingCache<Object, Object> cache, int minimum, int maximum) {

        assertNotNull(result);
        List<Dependency> deps = new ArrayList<>(result.getDependencies().keySet());
        List<Dependency> deps2 = result.getNodes().stream()
                .map(Node::getDependency)
                .filter(Objects::nonNull)
                .collect(Collectors.toList());
        assertEquals(deps, deps2);
        for (Dependency dep : deps2) {
            dep.getVersion();

 *       probably require adding the dep to various ACLs, license files, and Proguard
 *       configurations, and there's always the potential that something will go wrong. It
 *       <i>probably</i> won't, since the deps are needed only in tests (and maybe someday in
 *       testlib), but why bother?
 *   <li>Stripping code entirely might help us keep under the method limit someday. Even if it never

        importIds.add(importing);

        List<DependencyManagement> importMgmts = null;

        List<Dependency> deps = new ArrayList<>(depMgmt.getDependencies());
        for (Iterator<Dependency> it = deps.iterator(); it.hasNext(); ) {
            Dependency dependency = it.next();

            if (!("pom".equals(dependency.getType()) && "import".equals(dependency.getScope()))

    }

    /* MNG-4005: postponed to 3.1
    public void testValidationErrorUponNonUniqueDependencyKey()
        throws Exception
    {
        try
        {
            buildPom( "unique-dependency-key/deps" );
            fail( "Non-unique dependency keys did not cause validation error" );
        }
        catch ( ProjectBuildingException e )
        {
            // expected
        }
    }

    @Test

        dep2.setGroupId( "test" );
        dep2.setArtifactId( "test-artifact2" );
        dep2.setVersion( "1" );
        dep2.setType( "jar" );

        List<Dependency> deps = new ArrayList<>();
        deps.add( dep1 );
        deps.add( dep2 );

        ArtifactFactory factory = container.lookup( ArtifactFactory.class );

        ArtifactFilter dependencyFilter = new ScopeArtifactFilter( Artifact.SCOPE_COMPILE );

        MojoExecution exec = newMojoExecution();

        Artifact depArtifact = createArtifact("group", "artifact", "1");

        List<Artifact> deps = new ArrayList<>();
        deps.add(depArtifact);

        exec.getMojoDescriptor().getPluginDescriptor().setArtifacts(deps);

        MavenSession session = newMavenSession();

        @SuppressWarnings("unchecked")
        List<Artifact> depResults =

            version = project.getVersion();

            Set<String> deps = new LinkedHashSet<>();
            if (project.getDependencyArtifacts() != null) {
                for (Artifact dep : project.getDependencyArtifacts()) {
                    deps.add(dep.toString());
                }
            }
            dependencyArtifacts = Collections.unmodifiableSet(deps);

            workspace = RepositoryUtils.getWorkspace(session);

 *       probably require adding the dep to various ACLs, license files, and Proguard
 *       configurations, and there's always the potential that something will go wrong. It
 *       <i>probably</i> won't, since the deps are needed only in tests (and maybe someday in
 *       testlib), but why bother?
 *   <li>Stripping code entirely might help us keep under the method limit someday. Even if it never

    private Map<String, MavenProject> projectMap;

    /**
     * Sort a list of projects.
     * <ul>
     * <li>collect all the vertices for the projects that we want to build.</li>
     * <li>iterate through the deps of each project and if that dep is within
     * the set of projects we want to build then add an edge, otherwise throw
     * the edge away because that dependency is not within the set of projects