given:
        def build = build("p1", "p2")
        createRootProject()
        def project1 = project("p1")
        def state1 = registry.stateFor(projectId("p1"))
        createProject(state1, project1)
        def project2 = project("p2")
        def state2 = registry.stateFor(projectId("p2"))
        createProject(state2, project2)

        when:
        async {

            String projectId = getId(project);

            MavenProject conflictingProject = projectMap.put(projectId, project);

            if (conflictingProject != null) {
                throw new DuplicateProjectException(
                        projectId,
                        conflictingProject.getFile(),
                        project.getFile(),
                        "Project '" + projectId + "' is duplicated in the reactor");

    ) : this(uuid, testType, os, testJvm.version, testJvm.vendor, buildJvm, expectedBucketNumber, withoutDependencies, arch)

    fun asId(projectId: String): String {
        return "${projectId}_$testCoveragePrefix"
    }

    fun asId(model: CIBuildModel): String {
        return asId(model.projectId)
    }

    private
    val testCoveragePrefix
        get() = "${testType.name.toCapitalized()}_$uuid"

                            .computeIfAbsent(PROJECT_INDEX, () -> new ProjectIndex(session.getProjects()));

                    int index = projectIndex.getIndices().get(projectId);

                    MavenProject forkedProject = projectIndex.getProjects().get(projectId);

                    forkedProjects.add(forkedProject);

                    MavenProject executedProject = forkedProject.clone();

    }

    def 'short circuits for matching project selectors'() {
        def projectId = new DefaultProjectComponentIdentifier(DefaultBuildIdentifier.ROOT, Path.ROOT, Path.ROOT, "projectA")
        def nine = new TestProjectSelectorState(projectId)
        def otherNine = new TestProjectSelectorState(projectId)
        ModuleConflictResolver mockResolver = Mock()

        ProjectComponentIdentifier projectId = module.getProjectId();
        if (projectId != null) {
            ProjectState projectState = projectStateRegistry.stateFor(projectId);
            if (!projectState.hasMutableState()) {
                throw new IllegalStateException("Thread should hold project lock for " + projectState.getDisplayName());
            }

            ProjectComponentIdentifier projectId = (ProjectComponentIdentifier) artifact.getId().getComponentIdentifier();
            if (!projectId.equals(currentProjectId)) {
                projectDependencies.add(moduleDependencyBuilder.create(projectId, scope));
            }
        }

        @Override

            throws DuplicateProjectException {
        Map<String, MavenProject> index = new LinkedHashMap<>();
        Map<String, List<File>> collisions = new LinkedHashMap<>();

        for (MavenProject project : projects) {
            String projectId = ArtifactUtils.key(project.getGroupId(), project.getArtifactId(), project.getVersion());

		if !found {
			return "", fmt.Errorf("error constructing GKE cluster url: %s not found in GCP Metadata", GCPCluster)
		}
		return fmt.Sprintf("https://container.googleapis.com/v1/projects/%s/locations/%s/clusters/%s",
			projectID, clusterLocation, clusterName), nil
	}
)

type (
	shouldFillFn     func() bool
	metadataFn       func() (string, error)
	metadataSupplier struct {
		Property string

import org.apache.maven.plugin.PluginExecutionException;
import org.apache.maven.project.ProjectBuildingException;
import org.apache.maven.project.ProjectBuildingResult;

/*

- test projects for each of these
- how to categorize the problems so that the id of the problem can be match to a page with descriptive help and the test
  project
- nice little sample projects that could be run in the core as well as integration tests

All Possible Errors