@SuppressWarnings("unchecked") // unsafe, but Javadoc warns about it
        K k = (K) key;
        return function.apply(k);
      } else {
        return null;
      }
    }

    @Override
    public @Nullable V remove(@Nullable Object key) {
      if (backingSet().remove(key)) {
        @SuppressWarnings("unchecked") // unsafe, but Javadoc warns about it

 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class ListIndexOfTester<E> extends AbstractListIndexOfTester<E> {
  @Override
  protected int find(Object o) {
    return getList().indexOf(o);
  }

  @Override

/**
 * Tests for {@link UnmodifiableIterator}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class UnmodifiableIteratorTest extends TestCase {

  @SuppressWarnings("DoNotCall")
  public void testRemove() {
    String[] array = {"a", "b", "c"};

    Iterator<String> iterator =
        new UnmodifiableIterator<String>() {
          int i;

          @Override

 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class QueuePollTester<E> extends AbstractQueueTester<E> {
  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(ZERO)
  public void testPoll_empty() {

   * By default, collection tests do run.
   */
  @CanIgnoreReturnValue
  public QueueTestSuiteBuilder<E> skipCollectionTests() {
    runCollectionTests = false;
    return this;
  }

  @SuppressWarnings("rawtypes") // class literals
  @Override
  protected List<Class<? extends AbstractTester>> getTesters() {
    List<Class<? extends AbstractTester>> testers = new ArrayList<>();
    if (runCollectionTests) {

 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class ListReplaceAllTester<E> extends AbstractListTester<E> {
  @ListFeature.Require(SUPPORTS_SET)
  public void testReplaceAll() {
    getList().replaceAll(e -> samples.e3());

import static com.google.common.hash.Hashing.sipHash24;

import org.jspecify.annotations.NullUnmarked;

/**
 * An enum that contains all of the known hash functions.
 *
 * @author Kurt Alfred Kluever
 */
@SuppressWarnings("deprecation") // We still need to test our deprecated APIs.
@NullUnmarked
enum HashFunctionEnum {
  ADLER32(adler32()),
  CRC32(crc32()),
  GOOD_FAST_HASH_32(goodFastHash(32)),
  GOOD_FAST_HASH_64(goodFastHash(64)),

/**
 * Verifies scope of root project is preserved regardless of parent dependency management.
 *
 * @see <a href="https://issues.apache.org/jira/browse/MNG-2919">MNG-2919</a>
 */
@Deprecated
@SuppressWarnings("checkstyle:UnusedLocalVariable")
class ProjectInheritanceTest extends AbstractProjectInheritanceTestCase {
    // ----------------------------------------------------------------------
    //
    // p1 inherits from p0

    checkState(segment.table.length() == capacity);
    for (int i = 0; i < segment.threshold; i++) {
      cache.put(new Object(), new Object());
    }
    checkState(segment.table.length() == capacity);
  }

  @SuppressWarnings("GuardedBy")
  @Benchmark
  int time(int reps) {
    int dummy = 0;
    AtomicReferenceArray<ReferenceEntry<Object, Object>> oldTable = segment.table;
    for (int i = 0; i < reps; i++) {

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.repository.ArtifactRepository;

/**
 */
public class ArtifactResolutionException extends AbstractArtifactResolutionException {
    @SuppressWarnings("checkstyle:parameternumber")
    public ArtifactResolutionException(
            String message,
            String groupId,
            String artifactId,
            String version,
            String type,