private static void addEntryTasksTo(ExecutionPlan plan, Set<Task> allTasksToRun) {
        for (Task task : allTasksToRun) {
            plan.addEntryTask(task);
        }
    }

    private void configureTestTasks(Set<Task> tasks) {
        for (Task task : tasks) {
            if (task instanceof AbstractTestTask) {
                configureTestTask((AbstractTestTask) task);
            }
        }
    }

    }
}

extensions.create('custom', SomeExtension)

task useIntTypeDsl {
    def custom = project.custom
    doLast {
        custom.prop = 123
    }
}

task useIntTypeApi {
    def custom = project.custom
    doLast {
        custom.prop.set(123)
    }
}

task useFileTypeDsl {
    def custom = project.custom
    def layout = project.layout
    doLast {

        """
    }

    def "default cacheability is BUILD_CACHE_DISABLED"() {
        buildFile << """
            task cacheable(type: Cacheable) {}
            task notCacheableByDefault(type: NotCacheableByDefault) {}
            task unspecified(type: UnspecifiedCacheabilityTask) {}
            task noOutputs(type: NoOutputs) {}
        """
        when:
        run "cacheable"
        then:

    }

    private Set<Node> getShouldRunAfter(TaskDependencyResolver dependencyResolver) {
        return dependencyResolver.resolveDependenciesFor(task, task.getShouldRunAfter());
    }

    @Override
    public String toString() {
        return task.getIdentityPath().toString();
    }

        withInstallations(jdkMetadata).fails(task)
        def events = toolchainEvents(task)
        then:
        failureDescriptionStartsWith("Execution failed for task '${task}'.")
        failureHasCause("There were failing tests.")
        assertToolchainUsages(events, jdkMetadata, "JavaLauncher")
    }

    def "emits toolchain usages when task fails for 'javadoc' task"() {
        def task = ":javadoc"

        then:
        result.groupedOutput.task(":a:some").assertOutputContains("FIRST").assertOutputContains("LAST")
        result.groupedOutput.task(":a:other").assertOutputContains("OTHER")

        when:
        configurationCacheRun ":a:some", ":a:other"

        then:
        result.groupedOutput.task(":a:some").assertOutputContains("FIRST").assertOutputContains("LAST")
        result.groupedOutput.task(":a:other").assertOutputContains("OTHER")

		tasks := t.summary.Tasks

		// Summarize groups of tasks with the same name.
		summary := make(map[string]taskStats)
		for _, task := range tasks {
			stats, ok := summary[task.Name]
			if !ok {
				stats.Type = task.Name
			}
			stats.add(task)
			summary[task.Name] = stats
		}

		// Sort tasks by type.
		userTasks := make([]taskStats, 0, len(summary))
		for _, stats := range summary {

    def setup() {
        ProjectInternal project = Mock(ProjectInternal)
        task.getProject() >> project
        task.getState() >> state
        task.getOutputs() >> taskOutputs
        task.getPath() >> "task"
        taskOutputs.setPreviousOutputFiles(_ as FileCollection)
        project.getBuildScriptSource() >> scriptSource
        task.getStandardOutputCapture() >> standardOutputCapture

    }

    def "cycle in nested input and task itself is detected"() {
        def task = project.tasks.create("myTask", TaskWithNestedObject)
        task.nested = new Tree(value: "root", left: task, right: new Tree(value: "right"))

        when:
        visitProperties(task)

        then:
        _ * visitor.visitNested() >> true

        }

        @Override
        public void execute(Task task) {
            if (application == null) {
                doExecute(task);
            } else {
                application.reapply(() -> doExecute(task));
            }
        }

        private void doExecute(Task task) {
            closure.setDelegate(task);
            closure.setResolveStrategy(Closure.DELEGATE_FIRST);