@TaskAction
                void run() {
                    def input = inputDirectory.file("output.txt").get().asFile
                    if (input.file) {
                        outputFile.asFile.get().text = input.text
                    } else {
                        outputFile.asFile.get().text = "<empty>"
                    }
                }
            }

            task sourceTask(type: Producer) {

        return gson.toJson(subprojects) + '\n'
    }

    private
    fun generateSubprojectsDirectories(): List<File> {
        val subprojectRoots = platformsFolder.asFile.listFiles(File::isDirectory).plus(subprojectsFolder.asFile).plus(testingFolder.asFile)
        return subprojectRoots.map { it.listFiles(File::isDirectory).asList() }.flatten()
    }

    private
    fun generateSubprojects(): List<GradleSubproject> {

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

            abstract class Consumer extends DefaultTask {

                @OutputFile
                abstract RegularFileProperty getOutputFile()

                @TaskAction
                def consume() {
                    outputFile.get().asFile.write('42')
                }
            }

        task.options.generatedSourceOutputDirectory.asFile.orNull == new File(project.buildDir, 'generated/sources/annotationProcessor/java/main')
        task.options.annotationProcessorGeneratedSourcesDirectory == task.options.generatedSourceOutputDirectory.asFile.orNull
        task.options.headerOutputDirectory.asFile.orNull == new File(project.buildDir, 'generated/sources/headers/java/main')

                def root = layout.projectDirectory.asFile
                fc.filter { File f ->
                    f.isDirectory()
                }.elements.map {
                    it.collect { fileSystemLocation ->
                        projectDir.dir(fileSystemLocation.asFile.absolutePath)
                    }
                }
            }

        delegate,
        acceptedViolations,
        apiSourceFolders,
        baseVersion.get(),
        mainApiChangesJsonFile.asFile,
        rootProject.layout.projectDirectory,
        currentUpgradedPropertiesFile.get().asFile,
        baselineUpgradedPropertiesFile.get().asFile
    )
}
tasks.named("check").configure { dependsOn(checkBinaryCompatibility) }

                [type: 'flatMap{map{}}',
                 mapBegin: 'flatMap { it.fieldValueOutputFile.map {', mapEnd: '} }',
                 get: 'it.asFile.readText(Charsets.UTF_8)'],
                [type: 'flatMap{map{}.map{}}',
                 mapBegin: 'flatMap { it.fieldValueOutputFile.map { it.asFile.readText(Charsets.UTF_8) }.map {', mapEnd: '} }',
                 get: 'it'],
                [type: 'flatMap{}.map{}',

                inFile = file("in.txt")
                outFile = layout.buildDirectory.file("out.txt")
            }
            task transformer(type: InputTask) {
                inValue = producer.outFile.map { f -> f.asFile.text as Integer }.map { i -> i + 2 }
                outFile = file("out.txt")
            }
        """
        def input = file("in.txt")
        def output = file("out.txt")

        writeFile(value.asFile)
    }

    override suspend fun ReadContext.decode(): Directory {
        return fileFactory.dir(readFile())
    }
}


class RegularFileCodec(private val fileFactory: FileFactory) : Codec<RegularFile> {
    override suspend fun WriteContext.encode(value: RegularFile) {
        writeFile(value.asFile)
    }

                        parameters.projectDirectory.file("testing/internal-integ-testing/src/main/groovy/org/gradle/integtests/fixtures/timeout/JavaProcessStackTracesMonitor.java").get().asFile.absolutePath,
                        parameters.projectDirectory.asFile.get().absolutePath
                    )
                }
            },
            parameters.timeoutMillis.get()
        )
    }

    override fun close() {