* used; or if the class exposes a public parameter-less constructor then it will be "new"d and
 * returned.
 *
 * <p>All default instances returned by {@link #get} are generics-safe. Clients won't get type
 * errors for using {@code get(Comparator.class)} as a {@code Comparator<Foo>}, for example.

しかし、今はこれらの重要な**コンセプトに基づくアイデア**を確認しましょう。これらのコンセプトは、他のどのタイプのWeb APIにも当てはまります。💡

## セキュリティ - HTTPS

<!-- NOTE: https.md written in Japanese does not exist, so it redirects to English one  -->
[前チャプターのHTTPSについて](https.md){.internal-link target=_blank}では、HTTPSがどのようにAPIを暗号化するのかについて学びました。

通常、アプリケーションサーバにとって**外部の**コンポーネントである**TLS Termination Proxy**によって提供されることが一般的です。このプロキシは通信の暗号化を担当します。

import com.google.common.testing.NullPointerTester;
import java.util.Collections;
import java.util.List;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;

/**
 * Tests for {@link Multisets}.
 *
 * @author Mike Bostock
 * @author Jared Levy
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
public class MultisetsTest extends TestCase {

import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeoutException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link AbstractExecutionThreadService}.
 *
 * @author Jesse Wilson
 */
@NullUnmarked
public class AbstractExecutionThreadServiceTest extends TestCase {

  private final TearDownStack tearDownStack = new TearDownStack(true);

import com.google.common.primitives.Ints;
import com.google.common.testing.NullPointerTester;
import java.util.List;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link Throwables}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@SuppressWarnings("deprecation") // tests of numerous deprecated methods
@NullUnmarked
public class ThrowablesTest extends TestCase {

    static final long serialVersionUID = 1L;

    private transient Entry header = new Entry(null, null, null);

    private transient int size = 0;

    /**
     * Creates an {@link SLinkedList}.
     */
    public SLinkedList() {
        header.next = header;
        header.previous = header;
    }

    /**
     * Returns the first element.
     *
     * @return the first element

import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.lang.reflect.Field;

import org.junit.jupiter.api.Test;

/**
 * Unit tests for {@link SmbComTransactionResponse}.
 *
 * <p>The class is abstract, so a concrete stub implementation is
 * provided purely to expose protected state and to satisfy the abstract

mydrobo.com
myds.me
myeffect.net
myfast.host
myfast.space
myfirewall.org
myforum.community
myfritz.link
myfritz.net
myftp.biz
myftp.org
myhome-server.de
myiphost.com
myjino.ru
mykolaiv.ua
mymailer.com.tw
mymediapc.net
mynascloud.com
myoko.niigata.jp
mypep.link
mypets.ws
myphotos.cc
mypi.co
mypsx.net
myqnapcloud.cn
myqnapcloud.com
myradweb.net

import java.util.concurrent.atomic.AtomicBoolean;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.Nullable;

/**
 * Tests {@link MapTestSuiteBuilder} by using it against maps that have various negative behaviors.
 *
 * @author George van den Driessche
 */
@AndroidIncompatible // test-suite builders

import java.util.Comparator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.function.Function;
import java.util.stream.Collector;
import org.jspecify.annotations.Nullable;

/**
 * GWT emulation of {@link com.google.common.collect.ImmutableBiMap}.
 *
 * @author Hayward Chan
 */
public abstract class ImmutableBiMap<K, V> extends ForwardingImmutableMap<K, V>
    implements BiMap<K, V> {