}

            task ok(type: SomeTask)
        """

        when:
        configurationCacheRun "ok"

        then: "bean is serialized before task runs"
        outputContains("bean.value = 42")

        when:
        configurationCacheRun "ok"

        then:
        outputContains("bean.value = 42")
    }

    def "restores task fields whose value is Externalizable"() {

                    project.getTasks().register("thing", t -> {
                        t.doLast(new Action<Task>() {
                            public void execute(Task t) {
                                Object value = ${read.javaExpression};
                                System.out.println("task = " + value);
                            }
                        });
                    });
                }

        assertFunctionalTestPassed("org.example.SomeThingPluginFunctionalTest", "can run task")

        when:
        run('check', '--rerun-tasks')

        then:
        assertTestPassed("org.example.SomeThingPluginTest", "plugin registers task")
        assertFunctionalTestPassed("org.example.SomeThingPluginFunctionalTest", "can run task")

        where:

@TargetGradleVersion('>=3.5')
class RunTasksBeforeRunActionCrossVersion extends ToolingApiSpecification {
    def setup() {
        buildFile << """
            task hello {
                doLast {
                    println "hello"
                }
            }

            task bye(dependsOn: hello) {
                doLast {
                    println "bye"
                }
            }
        """
    }

        val isTaskFromSameProject = delegate is Task && delegate.project == value.project

        return isTaskReferencesAllowed && isTaskFromSameProject
    }

    override suspend fun ReadContext.decode(): Task? = when (readEnum<ReferenceType>()) {
        ReferenceType.SELF_REF ->
            isolate.owner.delegate as Task

        ReferenceType.TASK_REF -> {
            val taskName = readString()

        return taskContainer.create(task).configure(configureClosure);
    }

    public Task task(Object task, Closure configureClosure) {
        return task(task.toString(), configureClosure);
    }

    @Override
    public Task task(Map options, String task) {
        return taskContainer.create(addMaps(Cast.uncheckedNonnullCast(options), singletonMap(Task.TASK_NAME, task)));

Wrongly declared task inputs can lead to cache misses especially when containing volatile data or absolute paths.
(See <<incremental_build.adoc#sec:task_inputs_outputs,the section called "Task inputs and outputs">> on what should be declared as inputs and outputs.)

NOTE: The task path is _not_ an input to the build cache key.

                }
                task fooJar(type: Jar) {
                   archiveBaseName = 'c-foo'
                }
                task barJar(type: Jar) {
                   archiveBaseName = 'c-bar'
                }
                task foo2Jar(type: Jar) {
                   archiveBaseName = 'c-foo2'
                }
                task bar2Jar(type: Jar) {

    private Object[] useOverlappingOutputFiles() {
        buildFile << """
            task first(type: OutputFileTask)
            task second(type: OutputFileTask) {
                // second's message needs to be different so we don't detect the file has unchanged
                message = "Generated by task " + path
            }
            task cleanSecond(type: Delete) {
                delete second
            }

			// N.B. No need to add the region to a task; the EventRegionBegin already handled it.
		} else {
			// This is an "end" without a start. Just fabricate the region now.
			sd = &UserRegionSummary{Name: r.Type, TaskID: r.Task}
			// Associate the region and current goroutine to the task.
			task := s.getOrAddTask(r.Task)
			task.Goroutines[g.ID] = g
			task.Regions = append(task.Regions, sd)
		}