import java.lang.reflect.Method;
import java.util.Spliterator;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code spliterator} operations on a collection. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

import com.google.common.collect.testing.features.MapFeature;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code containsKey()} operations on a map. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.MapTestSuiteBuilder}.
 *
 * @author George van den Driessche
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

import java.lang.reflect.Method;
import java.lang.reflect.TypeVariable;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link TypeParameter}.
 *
 * @author Ben Yu
 */
@NullUnmarked
public class TypeParameterTest extends TestCase {

  public <T> void testCaptureTypeParameter() throws Exception {

import java.util.Iterator;
import org.jspecify.annotations.Nullable;

/**
 * An iterator that transforms a backing iterator; for internal use. This avoids the object overhead
 * of constructing a {@link com.google.common.base.Function Function} for internal methods.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
abstract class TransformedIterator<F extends @Nullable Object, T extends @Nullable Object>

  + Keep the title as short as possible. ideally under 76 characters or shorter
+ No Markdown
+ The first PR comment (this one) is wrapped at 76 characters, unless it's
  really needed (ASCII art, table, or long link)
+ If there is a corresponding issue, add either `Fixes #1234` or `Updates #1234`
  (the latter if this is not a complete fix) to this comment
+ If referring to a repo other than `golang/go` you can use the

/**
 * Normalizes full-width alphanumeric characters to half-width alphanumeric characters.
 */
public class FullWidthToHalfWidthAlphabetNormalizer implements Normalizer {
    /**
     * Constructs a new {@link FullWidthToHalfWidthAlphabetNormalizer}.
     */
    public FullWidthToHalfWidthAlphabetNormalizer() {
        // nothing
    }

    @Override

/**
 * Phantom reference with a {@code finalizeReferent()} method which a background thread invokes
 * after the garbage collector reclaims the referent. This is a simpler alternative to using a
 * {@link ReferenceQueue}.
 *
 * <p>Unlike a normal phantom reference, this reference will be cleared automatically.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible

import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.security.MessageDigest;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for comparing instance creation of {@link MessageDigest}s.
 *
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class MessageDigestCreationBenchmark {

  @Param({"MD5", "SHA-1", "SHA-256", "SHA-384", "SHA-512"})
  private String algorithm;

import java.lang.reflect.Method;
import java.lang.reflect.TypeVariable;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link TypeParameter}.
 *
 * @author Ben Yu
 */
@NullUnmarked
public class TypeParameterTest extends TestCase {

  public <T> void testCaptureTypeParameter() throws Exception {

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.ForwardingObject;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link ForwardingObjectTester}.
 *
 * @author Ben Yu
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class ForwardingObjectTesterTest extends TestCase {

  public void testFailsToForward() {
    try {