try {
            Constructor<?> constructor = timeout.onlyIf().getConstructors()[0];
            int paramCount = constructor.getParameterCount();
            Object[] param = new Object[paramCount];
            for (int i = 0; i < paramCount; i++) {
                param[i] = this;
            }
            if (((Closure<Boolean>) constructor.newInstance(param)).call()) {
                runnable.run();

     *
     * @param serviceType The service implementation to make visible.
     */
    void add(Class<?> serviceType);

    /**
     * Adds a service to this registry. The implementation class should have a single public constructor, and this constructor can take services to be injected as parameters.
     *

      $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.CodeFragment
      CONSTRUCTOR visibility:public <> () returnType:<root>.CodeFragment [primary]
        BLOCK_BODY
          DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
      FUN name:run visibility:public modality:FINAL <> () returnType:kotlin.Unit
        EXPRESSION_BODY

        myProperty.set("Hello, Gradle!")
        println(myProperty.get())
    }
}
// end::object-factory[]

// tag::object-factory-inject[]
abstract class MyObjectFactoryTask
@Inject constructor(private var objectFactory: ObjectFactory) : DefaultTask() {

    @TaskAction
    fun doTaskAction() {
        val outputDirectory = objectFactory.directoryProperty()

abstract class GreetingTask extends DefaultTask {
    // tag::convention-callsites-from-constructor[]
    // setting convention from constructor
    @Input
    abstract Property<String> getGuest()

    GreetingTask() {
        guest.convention("person2")
    }
    // end::convention-callsites-from-constructor[]

    // tag::convention-callsites-from-declaration[]
    // setting convention from declaration

    Option<"prefer_tf2xla_", "prefer-tf2xla", "bool",
        /*default=*/"false",
        "Prioritize tf2xla fallback legalization over MLIR legalization "
        "patterns">,
  ];

  let constructor = "mlir::mhlo::createLegalizeTFPass()";
  let dependentDialects = [
    "arith::ArithDialect",
    "chlo::ChloDialect",
    "func::FuncDialect",
    "mhlo::MhloDialect",
    "quant::QuantizationDialect",

        require(this is SimpleType)
        val declaration = constructor.declarationDescriptor
        return declaration is FunctionClassDescriptor && declaration.functionTypeKind.isSuspendOrKSuspendFunction
    }

    override fun SimpleTypeMarker.isKClass(): Boolean {
        require(this is SimpleType)
        return constructor.declarationDescriptor == builtIns.kClass
    }

        val elementType = unwrappedType.constructor.builtIns.getArrayElementType(unwrappedType)
        return KotlinBuiltIns.isArrayOrPrimitiveArray(elementType)
    }

    /** Expanded by default */
    override fun fullyExpandedType(type: KaType): KaType = type

    private fun KotlinType.isDenotable(): Boolean {
        if (this is DefinitelyNotNullType) return false
        return constructor.isDenotable &&

        failure.assertHasCause("Could not create task of type 'CustomTask'.")
        failure.assertHasCause("Unable to determine constructor argument #2: missing parameter of type int, or no service of type int")
    }

    def "fails to create custom task if all constructor arguments missing"() {
        given:
        buildFile << CUSTOM_TASK_WITH_CONSTRUCTOR_ARGS
        buildFile << "tasks.register('myTask', CustomTask)"

    /**
     * Generates the signature for the given constructor, optionally adding a `name` parameter before all other parameters.
     */
    public static String signature(Constructor<?> constructor, boolean addNameParameter) {
        StringBuilder builder = new StringBuilder();
        visitFormalTypeParameters(constructor.getTypeParameters(), builder);
        visitConstructorParameters(constructor.getGenericParameterTypes(), addNameParameter, builder);