String projectId = projectVertex.getLabel();

            MavenProject project = projectMap.get(projectId);

            for (Dependency dependency : project.getModel().getDelegate().getDependencies()) {
                addEdge(
                        projectMap,
                        vertexMap,
                        project,
                        projectVertex,

        GradleBuild build = controller.getBuildModel();
        for (GradleBuild includedBuild : build.getIncludedBuilds()) {
            invocations.add(controller.getModel(includedBuild, BuildInvocations.class));
        }
        return invocations;
    }

        List<GradleProject> projects = new ArrayList<GradleProject>();
        GradleBuild build = controller.getBuildModel();
        for (GradleBuild includedBuild : build.getIncludedBuilds()) {
            projects.add(controller.getModel(includedBuild, GradleProject.class));
        }
        return projects;
    }

        buildFile << """
            plugins {
                id("my.plugin")
            }
        """

        when:
        def model = toolingApi.withConnection() { connection -> connection.getModel(BaseModel) }

        then:
        assertModelIsPolymorphic(model)
    }

    def "supports nested model polymorphism"() {
        given:

public class ProviderBuildResult<T> implements BuildResult<T> {
    private final T result;

    public ProviderBuildResult(T result) {
        this.result = result;
    }

    @Override
    public T getModel() {
        return result;
    }

public class FetchBuildInvocations implements BuildAction<BuildInvocations> {

    @Override
    public BuildInvocations execute(BuildController controller) {
        return controller.getModel(BuildInvocations.class);
    }

import org.gradle.tooling.model.gradle.GradleBuild;

public class FetchGradleBuild implements BuildAction<GradleBuild> {

    @Override
    public GradleBuild execute(BuildController controller) {
        return controller.getModel(GradleBuild.class);
    }

import org.gradle.tooling.model.idea.IdeaProject;

public class FetchIdeaProject implements BuildAction<IdeaProject> {

    @Override
    public IdeaProject execute(BuildController controller) {
        return controller.getModel(IdeaProject.class);
    }

import org.gradle.tooling.model.idea.IdeaProject;

public class FetchIdeaModel implements BuildAction<IdeaProject> {
    public IdeaProject execute(BuildController controller) {
        return controller.getModel(IdeaProject.class);
    }

public class CustomBuildAction implements BuildAction<EclipseProject> {

    @Override
    public EclipseProject execute(BuildController controller) {
        return controller.getModel(EclipseProject.class);
    }