forkOptions.tempDir == null
        forkOptions.jvmArgs == []
    }

    def 'options can be defined via a map'() {
        when:
        forkOptions.define(PROPS.collectEntries { [it, "${it}Value" as String ] })
        then:
        PROPS.each { assert forkOptions."${it}" == "${it}Value" as String }
    }

        @Override
        public Value<Void> collectEntries(ValueConsumer consumer, ValueCollector<T> collector, ImmutableCollection.Builder<T> dest) {
            Value<Void> leftValue = left.collectEntries(consumer, collector, dest);
            if (leftValue.isMissing()) {
                return leftValue;
            }
            Value<Void> rightValue = right.collectEntries(consumer, collector, dest);

 * <p>
 *     A <code>Collector</code> represents an increment to a collection property.
 * </p>
 */
public interface Collector<T> extends ValueSupplier {
    Value<Void> collectEntries(ValueConsumer consumer, ValueCollector<T> collector, ImmutableCollection.Builder<T> dest);

    int size();

    void calculateExecutionTimeValue(Action<? super ExecutionTimeValue<? extends Iterable<? extends T>>> visitor);

    def "all samples are different"() {
        given:
        def metadata = sampleFiles().collectEntries { [it.name, parse(it)] }

        when:
        def serializedMetadata = metadata.collectEntries { [it.key, Hashing.sha1().hashBytes(serialize(it.value))] }

        then:
        println "Checking that all ${metadata.size()} samples are different"

        return this
    }

    MutableUnitOfWorkBuilder withOutputFiles(File... outputFiles) {
        return withOutputFiles((outputFiles as List)
            .withIndex()
            .collectEntries { outputFile, index -> [('defaultFiles' + index): outputFile] }
        )
    }

    MutableUnitOfWorkBuilder withOutputFiles(Map<String, ? extends File> files) {
        this.outputFiles = files

 * </p>
 */
public interface MapCollector<K, V> extends ValueSupplier {

    Value<Void> collectEntries(ValueConsumer consumer, MapEntryCollector<K, V> collector, Map<K, V> dest);

    Value<Void> collectKeys(ValueConsumer consumer, ValueCollector<K> collector, ImmutableCollection.Builder<K> dest);

    @Override
    void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        Map<String, String> entries = request.getHeaderNames().toList().collectEntries { headerName -> [headerName, request.getHeader(headerName as String)] }
        allHeaders.add(entries)
        String authorization = getAuthorizationHeader(request)
        if (authorization != null) {

    }

    void withPluginAlias(String alias) {
        withPlugins([:], [(alias): null])
    }

    void withPluginAliases(List<String> aliases = []) {
        withPlugins([:], aliases.collectEntries { [it, null] })
    }

    void withPluginsBlockContents(String block) {
        def text = buildFile.text
        int idx = text.indexOf('allprojects')
        text = """${text.substring(0, idx)}

        GetInputPropertiesVisitor visitor = new GetInputPropertiesVisitor()
        TaskPropertyUtils.visitProperties(propertyWalker, task, visitor)
        return visitor.getProperties().collectEntries { [it.propertyName, it.value.call()] }
    }

    static FileCollection getInputFiles(DefaultTask task) {
        def fileCollectionFactory = task.getServices().get(FileCollectionFactory)

        }
        Map<File, KotlinDslScriptModel> singleRequestModels = model.scriptModels

        and:
        Map<File, KotlinBuildScriptModel> multiRequestsModels = spec.scripts.values().collectEntries {
            [(it): kotlinBuildScriptModelFor(projectDir, it)]
        }

        then:
        spec.scripts.values().each { script ->