* Returns a copy of this result, adding any failures from the given result object.
     */
    public abstract ExecutionResult<T> withFailures(ExecutionResult<Void> otherResult);

    /**
     * Casts a failed result.
     */
    public abstract <S> ExecutionResult<S> asFailure();

    public static <T> ExecutionResult<T> succeeded(T value) {
        return new Success<T>() {
            @Override
            public T getValue() {

     */
    ExecutionResult assertTasksExecutedInOrder(Object... taskPaths);

    /**
     * Asserts that exactly the given set of tasks have been executed in any order.
     */
    ExecutionResult assertTasksExecuted(Object... taskPaths);

    /**
     * Asserts that the given task has been executed.
     */
    ExecutionResult assertTaskExecuted(String taskPath);

    /**

    private MavenExecutionResult executionResult;

    @BeforeEach
    void before() {
        executionResult = new DefaultMavenExecutionResult();
    }

    @Test
    void resumeFromGetsDetermined() {
        MavenProject projectA = createSucceededMavenProject("A");
        MavenProject projectB = createFailedMavenProject("B");
        executionResult.setTopologicallySortedProjects(asList(projectA, projectB));

        def failure2 = new RuntimeException()
        def successful = ExecutionResult.succeeded(12)
        def otherSuccessful = ExecutionResult.succeeded()
        def failed = ExecutionResult.failed(failure1)
        def otherFailed = ExecutionResult.failed(failure2)
        def allFailed = ExecutionResult.maybeFailed([failure1, failure2])

        expect:

public class ErrorsOnStdoutScrapingExecutionResult implements ExecutionResult {
    private final ExecutionResult delegate;

    public ErrorsOnStdoutScrapingExecutionResult(ExecutionResult delegate) {
        this.delegate = delegate;
    }

    @Override
    public ExecutionResult getIgnoreBuildSrc() {
        return new ErrorsOnStdoutScrapingExecutionResult(delegate.getIgnoreBuildSrc());

    }

    private <T> T runBuild(Supplier<ExecutionResult<? extends T>> action) {
        return state.transition(State.NotStarted, State.Complete, () -> {
            ExecutionResult<? extends T> result;
            try {
                result = action.get();
            } catch (Throwable t) {
                result = ExecutionResult.failed(t);
            }

    }

    def verifyTestResultWith(TestExecutionResult executionResult, TestResultOutputAssociation outputAssociation) {
        executionResult.assertTestClassesExecuted("org.FailingTest", "org.PassingTest", "org.MixedMethodsTest", "org.NoOutputsTest", "org.EncodingTest", "org.ParameterizedTest", "org.OutputLifecycleTest")

        def mixedMethods = executionResult.testClass("org.MixedMethodsTest")
                .assertTestCount(4, 2, 0)

    override fun scheduleAndRunRequestedTasks(taskSelector: EntryTaskSelector?): ExecutionResult<Void> {
        val scheduleTaskSelectorPostProcessing: BuildTreeWorkGraphBuilder? = taskSelector?.let { selector ->
            { rootBuildState ->
                addFinalization(rootBuildState, selector::postProcessExecutionPlan)
            }
        }
        val executionResult = workGraph.withNewWorkGraph { graph ->

        });
    }

    private ExecutionResult<Void> doTransitionWithFailures(T toState, Function<ExecutionResult<Void>, ExecutionResult<Void>> action, CurrentState<T> current) {
        ExecutionResult<Void> currentResult = current.asResult();
        state = current.transitioningTo(toState);
        ExecutionResult<Void> result;
        try {
            result = action.apply(currentResult);
        } catch (Throwable t) {

    fun stopDaemons() {
        build("--stop")
    }

    protected
    fun buildForCacheInspection(vararg arguments: String): ExecutionResult =
        executerForCacheInspection(*arguments).run()

    protected
    fun buildWithDaemonHeapSize(heapMb: Int, vararg arguments: String): ExecutionResult =
        executerForCacheInspection(*arguments)
            .withBuildJvmOpts("-Xms${heapMb}m", "-Xmx${heapMb}m")
            .run()