import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.timeout;
import static org.mockito.Mockito.verify;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.ImmutableList;
import com.google.common.reflect.Reflection;
import com.google.common.truth.FailureStrategy;

import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.TruthJUnit.assume;
import static org.junit.Assert.assertThrows;

import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;

/**
 * Abstract base class for testing directed {@link Graph} implementations defined in this package.
 */
@NullUnmarked

## 标题 { #headings }

//// tab | 测试

### 开发 Web 应用——教程 { #develop-a-webapp-a-tutorial }

Hello.

### 类型提示与注解 { #type-hints-and-annotations }

Hello again.

### 超类与子类 { #super-and-subclasses }

Hello again.

////

//// tab | 信息

关于标题的唯一硬性规则是：LLM 必须保持花括号内的哈希部分不变，以确保链接不会失效。

import com.google.errorprone.annotations.Immutable;
import java.security.Key;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.zip.Adler32;
import java.util.zip.CRC32;
import java.util.zip.Checksum;
import javax.crypto.spec.SecretKeySpec;
import org.jspecify.annotations.Nullable;

/**

import static com.google.common.truth.TruthJUnit.assume;
import static org.junit.Assert.assertThrows;

import com.google.common.testing.EqualsTester;
import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.After;
import org.junit.Test;

/**
 * Abstract base class for testing undirected {@link Graph} implementations defined in this package.
 */
@NullUnmarked

import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import org.jspecify.annotations.Nullable;

/**
 * An implementation of {@link GraphConnections} for directed graphs.
 *
 * @author James Sexton
 * @author Jens Nyman
 * @param <N> Node parameter type
 * @param <V> Value parameter type
 */

import java.util.concurrent.ConcurrentSkipListMap;
import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;

/**
 * Test case for {@link ConcurrentHashMultiset}.
 *
 * @author Cliff L. Biffle
 * @author mike nonemacher
 */
@NullUnmarked
public class ConcurrentHashMultisetTest extends TestCase {

## Überschriften { #headings }

//// tab | Test

### Eine Webapp entwickeln – ein Tutorial { #develop-a-webapp-a-tutorial }

Hallo.

### Typhinweise und -annotationen { #type-hints-and-annotations }

Hallo wieder.

### Super- und Subklassen { #super-and-subclasses }

Hallo wieder.

////

//// tab | Info

    * If you are running 1.3, only use the alpha annotation, or it may be lost when
      rolling forward.
      The status has moved from annotation key
      `pods.beta.kubernetes.io/init-container-statuses` to
      `pods.beta.kubernetes.io/init-container-statuses`.
    * Any code that inspects this annotation should be changed to use the new key.

import static com.google.common.base.StandardSystemProperty.JAVA_CLASS_PATH;
import static com.google.common.base.StandardSystemProperty.PATH_SEPARATOR;
import static java.util.logging.Level.WARNING;

import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.CharMatcher;
import com.google.common.base.Splitter;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.ImmutableList;