*/
    @Nullable
    @Optional
    @OutputFile
    public File getOutputFile() {
        return outputFile;
    }

    /**
     * Sets the file which the report will be written to. Set this to {@code null} to write the report to {@code System.out}.
     *
     * @param outputFile The output file. May be null.
     */
    public void setOutputFile(@Nullable File outputFile) {
        this.outputFile = outputFile;

        then:
        executedAndNotSkipped ":run"

        when:
        def secondInputFile = file("second-input.txt")
        secondInputFile.text = inputFile.text
        run "run", "-PinputFile=${secondInputFile.absolutePath}", "-PoutputFile=${outputFile.absolutePath}"
        then:
        outputFile.text == "first"
        skipped ":run"

                Path inputFile
                @InputDirectory
                Path inputDir
                @OutputFile
                Path outputFile
                @OutputDirectory
                Path outputDir

                @TaskAction
                def go() {
                    outputFile.toFile().text = inputFile.toFile().text

                @OutputFile
                abstract RegularFileProperty getDirName()

                @TaskAction
                def produce() {
                    dirName.get().asFile.text = 'dir'
                }
            }

            abstract class Consumer extends DefaultTask {

                @OutputFile
                abstract RegularFileProperty getOutputFile()

                FileCollection sources

                @OutputFile
                File outputFile

                public TaskWithInputs() {
                    sources = project.files()
                }

                @TaskAction
                void doSomething() {
                    outputFile.withWriter { writer ->
                        sources.each { writer.println it }

                @TaskAction
                void doTask() {
                    File outputFile = getOutputDir().get().asFile
                    outputFile.deleteDir()
                    outputFile.mkdirs()
                    for (int i = 0; i < getInputCount().get(); i++) {
                        new File(outputFile, i.toString()).mkdirs()
                    }
                }
            }

                output = layout.buildDirectory.file("out.txt")
            }
        """
        def outputFile = file("build/out.txt")

        when:
        configurationCacheRun "a"

        then:
        result.assertTasksExecutedAndNotSkipped(":a")
        outputFile.assertIsFile()

        when:
        configurationCacheRun "a"

        then:

            task cacheableTask(type: MyTask) {
                inputFile = file('input.txt')
                outputFile = file('build/output.txt')
                cacheOrigin = file('cache-origin.txt')
            }

            @CacheableTask
            class MyTask extends DefaultTask {

                @OutputFile File outputFile

                @InputFile
                @PathSensitive(PathSensitivity.NONE)

        zipFile.stream().forEach { entry ->
            if (entry.shouldInclude()) {
                val outputFile = outputRoot.resolve(entry.name)
                outputFile.parentFile.mkdirs()
                zipFile.getInputStream(entry).use { input ->
                    outputFile.outputStream().use { output ->
                        input.copyTo(output)
                    }
                }
            }

            task myTask {
                def inputFile = file("${inputFile.name}")
                def outputFile = file("build/output.txt")
                outputs.file(outputFile)
                inputs.file(inputFile)
                doLast {
                    outputFile.text = inputFile.text
                }
            }
        """

        inputFile.text = "input"