*            The type of the second value
 * @param <T3>
 *            The type of the third value
 * @param <T4>
 *            The type of the fourth value
 */
public class Tuple4<T1, T2, T3, T4> {

    /** The first value */
    protected T1 value1;

    /** The second value */
    protected T2 value2;

    /** The third value */
    protected T3 value3;

    /** The fourth value */

     *            The fourth value
     * @param value5
     *            The fifth value
     * @return A tuple of five values
     */
    public static <T1, T2, T3, T4, T5> Tuple5<T1, T2, T3, T4, T5> tuple5(final T1 value1, final T2 value2, final T3 value3, final T4 value4,
            final T5 value5) {
        return new Tuple5<>(value1, value2, value3, value4, value5);
    }

    /**
     * Constructs an instance.

 * @param <T2>
 *            The type of the second value
 * @param <T3>
 *            The type of the third value
 */
public class Tuple3<T1, T2, T3> {

    /** The first value */
    protected T1 value1;

    /** The second value */
    protected T2 value2;

    /** The third value */
    protected T3 value3;

    /**
     * Creates and returns a tuple of three values.
     *

)

func TestLoadOrStoreVisitMap(t *testing.T) {
	var vm visitMap
	var loaded bool
	type testM struct {
		Name string
	}

	t1 := testM{Name: "t1"}
	t2 := testM{Name: "t2"}
	t3 := testM{Name: "t3"}

	vm = make(visitMap)
	if loaded = loadOrStoreVisitMap(&vm, reflect.ValueOf(&t1)); loaded {
		t.Fatalf("loaded should be false")
	}

	if loaded = loadOrStoreVisitMap(&vm, reflect.ValueOf(&t1)); !loaded {

    val t2 = System.nanoTime() / 1e6 - t1
    assertThat(t2).isCloseTo(750.0, 250.0)

    assertThat(log.take()).isEqualTo("runOnce delays.size=1")
    val t3 = System.nanoTime() / 1e6 - t1
    assertThat(t3).isCloseTo(1750.0, 250.0)
  }

  @Test fun taskFailsWithUncheckedException() {
    queue.schedule("task", TimeUnit.MILLISECONDS.toNanos(100)) {
      log.put("failing task running")