new File(outputFile, i.toString()).mkdirs()
                    }
                }
            }

            abstract class ConsumerTask extends DefaultTask {
                @InputFiles
                abstract ConfigurableFileCollection getMyInputs()

                @OutputFile
                abstract RegularFileProperty getOutputFile()

                @TaskAction

import org.gradle.api.tasks.Classpath
import org.gradle.api.tasks.IgnoreEmptyDirectories
import org.gradle.api.tasks.Input
import org.gradle.api.tasks.InputDirectory
import org.gradle.api.tasks.InputFiles
import org.gradle.api.tasks.Internal
import org.gradle.api.tasks.OutputDirectory
import org.gradle.api.tasks.PathSensitive
import org.gradle.api.tasks.PathSensitivity
import org.gradle.api.tasks.TaskAction

Here are some examples of the different types of arguments that the `source` property can take:

====
include::sample[dir="snippets/files/inputFiles/kotlin",files="build.gradle.kts[tags=set-input-files]"]
include::sample[dir="snippets/files/inputFiles/groovy",files="build.gradle[tags=set-input-files]"]
====

One other thing to note is that properties like `source` have corresponding methods in core Gradle tasks.

            }

            tasks.register("checkDeps", CheckDeps) {
                input.from(configurations.runtimeClasspath)
            }

            class CheckDeps extends DefaultTask {
                @InputFiles
                final ConfigurableFileCollection input = project.objects.fileCollection()

                @TaskAction
                void doSomething() {
                    println input.files.name

        }
        javaLibrary()

        given:
        uncheckedModule("org", "foo")
        buildFile << """
            class PrintConfigurations extends DefaultTask {
                @InputFiles
                FileCollection classpath;

                @TaskAction
                void execute() {
                    println "classpath: " + classpath.files
                }
            }

 * contents, expose the path of the file as an {@link org.gradle.api.tasks.Input} property instead.</p>
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD, ElementType.FIELD})
public @interface InputFile {

        }

        void createInputs() {
            file("input.txt").text = "input file"
            file("inputs").create {
                file("inputFile1.txt").text = "input 1 in dir"
                file("inputFile2.txt").text = "input 2 in dir"
            }
        }

        void staleFilesHaveBeenRemoved() {
            assert outputFile.text != "leftover file"

====
[.multi-language-sample]
=====
.build.gradle.kts
[source,kotlin]
----
tasks {
    myTask {
        inputFiles.from(configurations.classpath.incoming.artifactView {
            attributes {
                // Add attributes to select a different type of artifact
            }
        }.files)
    }
}

For tasks where this is a concern, you can expose a separate property without the `@IgnoreEmptyDirectories` annotation in order to capture those changes:

```
@InputFiles
@SkipWhenEmpty
@PathSensitive(PathSensitivity.ABSOLUTE)
public FileTree getSourcesWithEmptyDirectories() {
    return super.getSource()
}
```

==== Changes to publications

                Resolve() {
                    outputs.upToDateWhen { false }
                }

                @Optional
                @InputFiles
                FileCollection getArtifactFiles() {
                    return artifacts.get().artifactFiles
                }

                @TaskAction
                void run() {