}
                }
            }

            abstract class Producer extends DefaultTask {
                @OutputFile abstract RegularFileProperty getOutputFile()
                @TaskAction def produce() {
                    outputFile.get().asFile << "42"
                }
            }

                abstract DirectoryProperty getSources()

                @InputFiles
                abstract ConfigurableFileCollection getSourceFiles()

                @OutputFile
                abstract RegularFileProperty getZipFile()

                ZipSrc() {
                    // We need a way to count access times, that is why I ended up with configuring it in the task so it has access to countResolved.

    output.dir(copyTestedVersionsInfo)
}

@CacheableTask
abstract class PrepareVersionsInfo : DefaultTask() {

    @get:OutputFile
    abstract val destFile: RegularFileProperty

    @get:Input
    abstract val mostRecent: Property<String>

    @get:Input
    abstract val versions: Property<String>

    @get:Input
    abstract val mostRecentSnapshot: Property<String>

Gradle provides two specialized `Property` subtypes for dealing with values of these types:

            }

            abstract class InputFilesTask extends DefaultTask {
                @InputFiles abstract ListProperty<FileSystemLocation> getInFiles()
                @OutputFile abstract RegularFileProperty getOutFile()
                @TaskAction def go() {
                    outFile.get().asFile.text = inFiles.get()*.asFile.name.sort().join(',')
                }
            }

                @InputFiles
                abstract ConfigurableFileCollection getInputFiles()

                @OutputFile
                abstract RegularFileProperty getOutputFile()

                @TaskAction
                void run() {
                    outputFile.get().asFile.text = inputFiles.files.collect { it.text }.join()
                }
            }

        "DirectoryProperty"           | "objects.directoryProperty()"         | "null"               | "null"
        "RegularFileProperty"         | "objects.fileProperty()"              | "file('abc')"        | new File('abc')
        "RegularFileProperty"         | "objects.fileProperty()"              | "null"               | "null"

                }
            }
            abstract class ProduceString : DefaultTask() {
                @get:OutputFile
                abstract val outputFile: RegularFileProperty
                @TaskAction
                fun printString() {
                    outputFile.get().asFile.writeText("absent")
                }
            }

                abstract DirectoryProperty getSources()

                @OutputFile
                abstract RegularFileProperty getOutputFile()

                @TaskAction
                void doSomething() {
                    outputFile.get().asFile.text = "executed"
                }
            }

The property type must be one of the following:

[cols="1,1"]
|===
|Property Type |Note

|`Property<T>`
|Where `T` is typically `Double`, `Integer`, `Long`, `String`, or `Bool`

|`RegularFileProperty`
|Configurable regular file location, whose value is mutable

|`DirectoryProperty`
|Configurable directory location, whose value is mutable

|`ListProperty<T>`
|List of elements of type `T`