this.workerLeaseService = workerLeaseService;
    }

    public <T extends StateTransitionController.State> StateTransitionController<T> newController(DisplayName displayName, T initialState) {
        return new StateTransitionController<>(displayName, initialState, workerLeaseService.newResource());
    }

    private enum State implements StateTransitionController.State {
        NotStarted, Complete
    }

    private final BuildLifecycleController buildLifecycleController;
    private final BuildTreeWorkController workController;
    private final BuildTreeModelCreator modelCreator;
    private final BuildTreeFinishExecutor finishExecutor;
    private final StateTransitionController<State> state;

import org.gradle.internal.build.BuildModelController;
import org.gradle.internal.model.StateTransitionController;
import org.gradle.internal.model.StateTransitionControllerFactory;

import javax.annotation.Nullable;

public class VintageBuildModelController implements BuildModelController {
    private enum Stage implements StateTransitionController.State {
        Created, SettingsLoaded, Configured
    }

public class ProjectLifecycleController implements Closeable {
    private final ServiceRegistry buildServices;
    private final StateTransitionController<State> controller;
    private ProjectInternal project;
    private ProjectScopeServices projectScopeServices;

    private enum State implements StateTransitionController.State {
        NotCreated, Created, Configured
    }