void setUp() throws Exception {
        cache = new DefaultProjectArtifactsCache();
    }

    @Test
    void testProjectDependencyOrder() throws Exception {
        ProjectArtifactsCache.Key project1 = new ProjectArtifactsCache.Key() {};

        Set<Artifact> artifacts = new LinkedHashSet<>(4);
        artifacts.add(new DefaultArtifact("g", "a1", "v", "compile", "jar", "", null));

        } else {
            if (anew) {
                cache = new ConcurrentHashMap<>();
                repositoryCache.put(session, KEY, cache);
            } else {
                cache = (ConcurrentHashMap<Object, Supplier<?>>)
                        repositoryCache.computeIfAbsent(session, KEY, ConcurrentHashMap::new);
            }
            return new DefaultModelCache(cache);
        }
    }

        for (int i = 0; i < projects.size(); i++) {
            MavenProject project = projects.get(i);
            String key = BuilderCommon.getKey(project);

            this.getProjects().put(key, project);
            this.getIndices().put(key, i);
        }
    }

    public Map<String, MavenProject> getProjects() {
        return projects;
    }

            if (pluginInfo != null) {
                String key = pluginInfo.groupId;
                if (processedPlugins.get(key) == null) {
                    PluginsMetadata pluginMetadata = plugins.get(key);
                    if (pluginMetadata == null) {
                        pluginMetadata = new PluginsMetadata(pluginInfo, timestamp);
                        plugins.put(key, pluginMetadata);
                    }
                }

                for (Dependency dependency : source.getDependencies()) {
                    String key = dependency.getManagementKey();
                    Dependency present = dependencies.putIfAbsent(key, dependency);
                    if (present != null && !equals(dependency, present) && !directDependencies.contains(key)) {
                        // TODO: https://issues.apache.org/jira/browse/MNG-8004
                        problems.add(

                messageBuffer.append("    <property>").append(LS);
                messageBuffer.append("      <name>KEY</name>").append(LS);
                messageBuffer.append("      <value>");
            } else if (isMap) {
                messageBuffer.append(LS);
                messageBuffer.append("    <KEY>");
            }
            messageBuffer.append("VALUE");
            if (isArray || isCollection) {

  <name>RemoteResourcesBundle</name>
  <description>
    A bundle of remote resources.
    This is the model specification for remote-resources.xml.
  </description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.plugin.resources.remote</value>
    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="remoteResourcesBundle">
      <name>RemoteResourcesBundle</name>

import static java.util.stream.Collectors.collectingAndThen;
import static java.util.stream.Collectors.toMap;

/**
 * Provides information about artifacts (identified by groupId:artifactId string key) and classpath elements exported by
 * Maven core itself and loaded Maven core extensions.
 *
 * @since 3.3.0
 */
public class CoreExports {
    private final Set<String> artifacts;

                return context.locate(path);
            }

            @Override
            public String getUserProperty(String key) {
                return context.userProperties.computeIfAbsent(
                        key, k -> request.getUserProperties().get(key));
            }

            @Override
            public Model getRawModel(Path from, String gId, String aId) {

under the License.
-->

<model>
  <id>supplementalModel</id>
  <name>SupplementalDataModel</name>
  <description>Provides access to supplemental POM data models.</description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.plugin.resources.remote</value>
    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="supplementalDataModels" xsd.compositor="sequence">