/**
     * @param <T1>
     * @param <T2>
     *
     */
    public interface Foo<T1, T2> {

        /**
         * @param foo
         * @return T2
         */
        T2 foo(T1 foo);
    }

    /**
     *
     */
    public interface Bar extends Foo<Integer, Long> {
    }

    /**
     * @param <T1>
     * @param <T2>
     *
     */

/**
 * 4つの値の組です。
 *
 * @author koichik
 * @param <T1>
 *            1番目の値の型
 * @param <T2>
 *            2番目の値の型
 * @param <T3>
 *            3番目の値の型
 * @param <T4>
 *            4番目の値の型
 */
public class Tuple4<T1, T2, T3, T4> {

    /** 1番目の値 */
    protected T1 value1;

    /** 2番目の値 */
    protected T2 value2;

    /** 3番目の値 */
    protected T3 value3;

    /** 4番目の値 */

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package p4

type Pair[T1 interface{ M() }, T2 ~int] struct {
	f1 T1
	f2 T2
}

func NewPair[T1 interface{ M() }, T2 ~int](v1 T1, v2 T2) Pair[T1, T2] {
	return Pair[T1, T2]{f1: v1, f2: v2}
}

func (p Pair[X1, _]) First() X1 {
	return p.f1
}

func (p Pair[_, X2]) Second() X2 {
	return p.f2
}

    assertThrows(IllegalArgumentException.class, () -> resolver.where(t, String.class));
  }

  public <T1, T2 extends List<T1>> void testWhere_recursiveMapping() {
    Type t1 = new TypeCapture<T1>() {}.capture();
    Type t2 = new TypeCapture<T2>() {}.capture();
    assertEquals(t2, new TypeResolver().where(t1, t2).resolveType(t1));
  }

  public <T> void testWhere_genericArrayMapping() {

		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 {
		t.Fatalf("loaded should be true")
	}

	// t1 already exist but t2 not

        };

        byte[] ti = new byte[] {
            0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8
        };

        Type2Message t2 = new Type2Message(this.context, flags, challenge, null);
        t2.setTargetInformation(ti);

        Type2Message parsed = new Type2Message(t2.toByteArray());
        assertArrayEquals(challenge, parsed.getChallenge());
        assertNull(parsed.getTarget());

    assertThrows(IllegalArgumentException.class, () -> resolver.where(t, String.class));
  }

  public <T1, T2 extends List<T1>> void testWhere_recursiveMapping() {
    Type t1 = new TypeCapture<T1>() {}.capture();
    Type t2 = new TypeCapture<T2>() {}.capture();
    assertEquals(t2, new TypeResolver().where(t1, t2).resolveType(t1));
  }

  public <T> void testWhere_genericArrayMapping() {

		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 {
		t.Fatalf("loaded should be true")
	}

	// t1 already exist but t2 not

 *
 * @author koichik
 * @param <T1>
 *            1番目の値の型
 * @param <T2>
 *            2番目の値の型
 */
public class Pair<T1, T2> {

    /** 1番目の値 */
    protected T1 first;

    /** 2番目の値 */
    protected T2 second;

    /**
     * 二つの値のペアを作成して返します。
     *
     * @param <T1>
     *            1番目の値の型
     * @param <T2>
     *            2番目の値の型
     * @param first
     *            1番目の値

     *            1番目の値の型
     * @param <T2>
     *            2番目の値の型
     * @param <T3>
     *            3番目の値の型
     * @param value1
     *            1番目の値
     * @param value2
     *            2番目の値
     * @param value3
     *            3番目の値
     * @return 3つの値の組
     */
    public static <T1, T2, T3> Tuple3<T1, T2, T3> tuple3(final T1 value1, final T2 value2, final T3 value3) {