import org.jspecify.annotations.NullMarked;

/**
 * A generator using sample elements whose hash codes all collide badly.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public abstract class TestCollidingSetGenerator implements TestSetGenerator<Object> {
  @Override
  public SampleElements<Object> samples() {
    return new Colliders();
  }

  @Override
  public Object[] createArray(int length) {

import java.net.Proxy
import okhttp3.internal.SuppressSignatureCheck

/** Data classes that correspond to each of the methods of [EventListener]. */
@SuppressSignatureCheck
sealed class CallEvent {
  abstract val timestampNs: Long
  abstract val call: Call

  val name: String
    get() = javaClass.simpleName

  /** Returns if the event closes this event, or null if this is no open event. */

 */
@Deprecated
@J2ktIncompatible
@GwtIncompatible
public abstract class ForwardingBlockingDeque<E> extends ForwardingDeque<E>
    implements BlockingDeque<E> {

  /** Constructor for use by subclasses. */
  protected ForwardingBlockingDeque() {}

  @Override
  protected abstract BlockingDeque<E> delegate();

  @Override
  public int remainingCapacity() {

import org.apache.maven.cling.invoker.mvnenc.Goal;
import org.codehaus.plexus.components.secdispatcher.SecDispatcher;

/**
 * The support class for goal implementations.
 */
public abstract class GoalSupport implements Goal {
    protected final MessageBuilderFactory messageBuilderFactory;
    protected final SecDispatcher secDispatcher;

 * A Maven task, at this level is merely just an opaque string.
 * <p>
 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
 *
 * @since 4.0.0
 */
public abstract class Task {

    private final String value;

    public Task(String value) {
        this.value = Objects.requireNonNull(value, "value");
    }

    public String getValue() {
        return value;

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

/**
 * Captures the actual type of {@code T}.
 *
 * @author Ben Yu
 */
abstract class TypeCapture<T> {

  /** Returns the captured type. */
  final Type capture() {
    Type superclass = getClass().getGenericSuperclass();

        ImmutableMultiset.Builder<Object> builder = ImmutableMultiset.builder();
        builder.addAll(keys);
        return builder.build();
      }
    };

    @CanIgnoreReturnValue
    @Override
    public abstract ImmutableMultiset<Object> create(List<?> keys);
  }

 * @since 15.0
 */
@DoNotMock("Use Escapers.nullEscaper() or another methods from the *Escapers classes")
@GwtCompatible
@SuppressWarnings("EscapedEntity") // We do mean for the user to see "<" etc.
public abstract class Escaper {
  // TODO(dbeaumont): evaluate custom implementations, considering package private constructor.
  /** Constructor for use by subclasses. */
  protected Escaper() {}

  /**

 * the garbage collector reclaims the referent. This is a simpler alternative to using a {@link
 * ReferenceQueue}.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible
public abstract class FinalizableWeakReference<T> extends WeakReference<T>
    implements FinalizableReference {
  /**
   * Constructs a new finalizable weak reference.
   *
   * @param referent to weakly reference

 * the garbage collector reclaims the referent. This is a simpler alternative to using a {@link
 * ReferenceQueue}.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible
public abstract class FinalizableWeakReference<T> extends WeakReference<T>
    implements FinalizableReference {
  /**
   * Constructs a new finalizable weak reference.
   *
   * @param referent to weakly reference